BRAND	MODEL	Chassis	KEYWORD	SYMPTOM	CURE
Sony	KP53S65	RA2	A.C. HUM	Sony KP53S65. Cust has two complaints. 1. Unit has low level AC hum when using an external amp connected to the variable/fixed or the monitor outputs of the television. The hum is present when the volume on the TV is muted or set to minimum, and the volume of the external is turned up 20%. The hum is quite noticeable at this level. 2. When using the variable/fixed outputs the set will not have left channel output.	I had tech disconnect all connections (except to the variable/fixed output) to the rear of the set while in the condition mentioned in the first complaint. After all other inputs to the set was disconnected the CATV connection was the only connection remaining. When it was disconnected the hum disappeared. This indicated the trouble is caused by a "Ground Loop" This condition is caused by the CATV ground is a different potential than the rest of the equipment. This may not be able to be corrected without an electrician checking the customer electrical neutral and ground connections in the customer house wiring. We can simply solve the trouble by having the CATV company installing a "ground breaker" in series with the CATV feed. 2. The no output to the left channel output is caused by a torn trace at the left output connector for the variable/fixed outputs.
Sony	KP53V45	RA2	arcing	KP53V45 Unit has red tube that is arcing.	Tech calling in for Red CRT Approval. CRT is Arcing in the Neck.
Sony	KP53XBR45	RA1	arcing	KP53XBR45 serial 9012904 Unit Has an arcing Red and green CRT then shuts down. Tapping on the neck of the tube aggravates the symptom	Bulletin # 281R1 need to be preformed on this chassis. It will protect the CRT driver board from arc over damage as a result of an arcing CRT. It is suggested to replace both CRT's and perform upgrade on all 3 CRT driver boards.
Sony	KP61V15	AP	ARCING	TV will turn on but the  Front panel LED will continually blink on and off. Unit gets high voltage but has a lot of arcing around the High voltage distribution block. Unit does have sound and has vertical sweep. The chassis is heavily corroded due to the environment. Unit is located next to an open window that receives ocean spray from the surf.	After closer inspection tech found the focus screen block assembly  wires were falling off of the assembly. Cleaning the connections with water and thoroughly drying the connections then resoldering them to the block assembly corrected the fault.
Sony	KP53V45	RA2	audio	KP53V45 No audio. While in the process of servicing the set the unit lost Green and blue have lost convergence.	Unit has a defective PS401 fuse and IC403 in the output stage. As for the convergence problem there is a loose connection between the "A" board an the "G"
Sony	KP53V45	RA2	AUDIO	No audio. While in the process of servicing the set, the unit lost Green and blue convergence.	Unit has a defective PS401 fuse and IC403 in the output stage. As for the convergence problem there is a loose connection between the "A" board and the "G".
Sony	KP53V75	RA2	audio	KP53V75 Serial # 9018895. After the set is on for only a brief period of time there will be a slight Hiss that will come an go in the right channel audio. It can be heard even if the TV is placed in "AUX" mode, with no input the his is noticeable	I have never heard of this symptom but since the television is under warranty and is covered in the S.A.Y.S. program then It would be best that the "A" board be replaced. Note to tech is that he must copy down the EPROM values or the tech will need to re-converge the set from scratch.
Sony	KP53V75	RA2	audio	KP53V75 unit has no audio. IC404 has audio up to the input of IC404(2&4).	Measuring the IC404(7, & 11) which are the outputs of the IC404 finds 1.3, & 32 vdc respectively. Each of these outputs must be exactly 50% of the B+ of IC404(9) which was 32 volts. Unit has defective IC404. TA8216 part # 8-759-246-70
Sony	KP53V75	RA2	AUDIO	. Unit has no audio. Tech ordered the "A" board under the SAYS program. Cannot get the EEPROM reader to read the data from the EEPROM to transfer the convergence alignment data from the old board to the new board.	Suggest the tech check the PS401 fuse. It was open. Suggest tech to change the fuse and audio output IC IC401 instead of replacing the "A" board
Sony	KP53V75	RA2	AUDIO	Unit has no audio. IC404 has audio up to the input of IC404(2&4).	Measuring the IC404(7, & 11) which are the outputs of the IC404 finds 1.3, & 32 vdc respectively. Each of these outputs must be exactly 50% of the B+ of IC404(9) which was 32 volts. Unit has defective IC404. TA8216 part # 8-759-246-70
Sony	KP53XBR45	RA1	audio	KP53XBR45 serial # Unit has history of the  "GB" board shorting out the switching transistors in the switcher supply. Q1201, & Q1202 short with R1206 opening. By simply replacing the transistors and C1210, C1211, C1212, and C1213 the power supply will run for 3 to 5 weeks then short the switching transistors again. The customer explained that they lost audio while the set was playing. The sound quality was normal up until the event that took place to short the switching transistors. This has happened 2 times. Tech is wondering if there are any other case histories regarding this symptom.	Suggest the tech look at replacing the following components D1204, D1205, D1209, D1208, D1206, D1207, D1210, & D1211. These are the limiting diodes and have a generic # 1SS133T. In addition there are 2 zener diodes in the secondary of this power supply that are used as protection They are D1213, and D1214. They will act like a crowbar across the + or - 18 volt source in the event the voltage increases beyond the avalanche limits of the zener diodes. In addition to the components I would suggest the tech replace IC1201
Sony	KP61XBR45	RA1	AUDIO	KP61XBR45. unit has no audio.. When an external amp is connected to the Line outputs the set will produce line level audio to the external amp.	Tech is not getting B+ to any of the Audio output IC's on the "K" board. Apparently the "GB" board is not providing the B+ necessary for the audio to turn on.  Tech needs to check the condition of the 4 fusible resistors in the +18 & -18 volt supply. R1217, R1273, R1297, R1295
Sony	KP61XBR48	RA1	AUDIO	Sony KP61XBR48 Distorted audio only when using the Surround mode or any high end audio feature. The sound is a raspy approx. 100 ~ 150 Hz buzz.	Call tech back regarding the IC or circuit involved with this expanded audio features. Unit in IC304( 8-759-248-74) Mixer IC305 (8-759-341-23) all located in the AA board complete board is A-1297-622-A
Sony	KP53V80	RA3	banding	KV53V80 serial 915183. Unit has banding of bright areas across the screen that becomes larger as the set plays.	This phenomena is caused by one of the IK buffers on the CRT driver boards. The condition should be treated by replacing All IK buffers and replacing the Spark Gaps The following transistors are the IK buffers Q733{CG board} Q764{CB board} & Q706{CR board). They are hidden by a heat sink for the Video output transistor. Tech needs to order the spark gaps for each CRT module and replace the defective IK buffer. IK buffer number is 8-729-200-17 and the spark gap is 1-517-729-31 Locations for Spark gaps are SG702, SG732, SG762.
Sony	KP53V75	RA2	black lines	KP53V75 Unit has black lines that appear across the picture. Further talking to the customer reveals that they were wondering why when they operated this television it caused interference on other televisions in the house.	This set appears to have a slight high voltage arc or corona discharge that is causing interference to other televisions. This arc is also causing problems in the video circuit which is why the tech and the customer are seeing it on the screen of this television. Tech needs to isolate the High voltage block, and CRT from possible suspect by one by one disconnecting them from the high voltage source. The only indicator the tech can use is another television and look for the interference to disappear, since the Sony will not allow the raster to appear if any one of the tubes is disconnected. After the test the it was determined the  flyback was causing the problem. The radiated noise reduced but was did not disappear. It was recommended to replace the "G" board since the unit was covered under the SAYS program.. The G board corrected the symptom.
Sony	KP53S35	RA2	blows fuses	Sony KP53S35 RA-2 chassis. Unit looses PS601 and PS602 intermittently	Factory upgrade. Replace C815, C897, 858, & 889 from a 1000mfd @ 35 vdc to a 470 md @ 35 vdc.
Sony	KP53S35	RA2	blue screen	KP53S35 serial number 9022580  Unit  has blue screen swapped.	Tapping on neck of blue CRT gives flashes of heave blue horizontal lines then returns to normal B&W Tracking. Unit will need a Blue CRT 8-733-497-05
Sony	KP53V80	RA3	BRIGHT RASTER	KP53V80  Serial 9008991 Once the set is turned on the raster will appear as a bright screen with video but the brightness is intense. There are no retrace lines. . The set does not have any On screen display, sound OK.	Q764 was defective
Sony	KP53V80	RA3	BRIGHT RASTER	KP53V80  Serial 9012671 Once the set is turned on the raster will appear as a bright screen with video but the brightness is intense. There are no retrace lines. Tech replaced the "A" board which did not cure the symptom. The set does not have any On screen display, sound OK.	This unit had a leaky Q706
SONY	KP53V80	RA3	BRIGHT RASTER	KP53V80 9001186 Unit goes to a bright screen then the set may shut down or just operate with an extremely bright picture but no retrace lines. Unit has no "ON Screen Display" and the sound s OK	Monitor the cathodes of each CRT at the instant of turn on. All cathodes were close to 186 volts. But as soon as the raster appeared the voltage dropped to 89 volts. This indicates the CRT's are in saturation. During this test the 200 volt source was still is running nearly 200 vdc.The IK lines are causing this problem. Measuring the IK line at the "CG" board at CN731(1) we measured 5 volts DC as soon as we turned on the set. After the picture appeared the voltage did not change. (NOTE: on a working set this voltage should be near Zero volts as long as there is "0" beam current. Each cathode had a normal IK pulse of 38 volts. The IK Buffers on each board are very hard to get to so another plan was develped to check these devices. The following transistors are the IK buffers Q733{CG board} Q764{CB board} & Q706{CR board). They are hidden by a heat sink for the Video output transistor. This unit had a leaky Q706.
Sony	KP53V80	RA3	BRIGHT RASTER	KP53V80 Serial 9000364 Once the set is turned on the raster will appear as a bright screen with video but the brightness is intense. There are no retrace lines.  The set does not have any On screen display, sound OK.	Q733 defective
Sony	KP53V80	RA3	BRIGHT RASTER	KP53V80 serial 9004624. Once the set is turned on the raster will appear as a bright screen with video but the brightness is intense. There are no retrace lines.  The set does not have any On screen display, sound OK.	Monitor the cathodes of each CRT at the instant of turn on. All cathodes were close to 186 volts. But as soon as the raster appeared the voltage dropped to 89 volts. This indicates the CRT's are in saturation. During this test the 200 volt source was still is running nearly 200 vdc.The IK lines are causing this problem. Measuring the IK line at the "CG" board at CN731(1) we measured 5 volts DC as soon as we turned on the set. After the picture appeared the voltage did not change. (NOTE: on a working set this voltage should be near Zero volts as long as there is "0" beam current. Each cathode had a normal IK pulse of 38 volts. The IK Buffers on each board are very hard to get to so another plan was develped to check these devices. The following transistors are the IK buffers Q733{CG board} Q764{CB board} & Q706{CR board). They are hidden by a heat sink for the Video output transistor. This unit had a leaky Q733.
Sony	KP53V80	RA3	BRIGHT RASTER	KP53V80 serial 9007644 Once the set is turned on the raster will appear as a bright screen with video but the brightness is intense. There are no retrace lines.  The set does not have any On screen display, sound OK.	defective Q764 Is leaky
Sony	KP53V80	RA3	BRIGHT RASTER	KV53V80 serial  9008877 After the set is turned on the raster will appear as a bright screen with video. But the brightness is intense. Tech replaced the "A" board which did not cure the symptom. The set does not have any OSD either	Monitor the cathodes of each CRT at the instant of turn on. All cathodes were close to 186 volts. But as soon as the raster appeared the voltage dropped to 89 volts. This indicates the CRT's are in saturation. During this test the 200 volt source was still is running nearly 200 vdc.The IK feedback lines are causing this problem. Measuring the IK line at the "CG" board at CN731(1) we measured 5 volts DC as soon as we turned on the set. After the picture appeared the voltage did not change. (NOTE: on a working set this voltage should be near Zero volts as long as there is "0" beam current. Each cathode had a normal IK pulse of 38 volts. The IK Buffers on each board are very hard to get to so another plan was develped to check these devices. The following transistors are the IK buffers Q733{CG board} Q764{CB board} & Q706{CR board). They are hidden by a heat sink for the Video output transistor. This unit had a leaky Q706.
Sony	KP53V85	RA2	BRIGHT RASTER	KP53V85 Unit has bright screen with retrace lines. CRT socket "CR" board has a hole burned through it. Previous tech out simply ordered All three CRT driver boards and the 3 CRT's because of a burn in the center of the tube.	Tech has no 200 vdc source from the G board \. The 1 ohm resistor is open from the D520 200 vdc rectifier to the CR board.
Sony	KP53S35	RA1	CHROMA	Sony KP53S35 . Unit has poor chroma of the main picture.	It appears like a loss of chroma phase lock of the 3.58 internal oscillator. The frequency is unstable. Recommend tech resolder the connections on X301, C305, C310 and R322 in the AFCFL circuit of the Jungle IC. This is IC301 near pins 1, 2, and 3.. Unit had broken connection on R322.
Sony	KP46S25	RA1	color wrong	The picture turns a reddish or pinkish cast after 20 minutes This is intermittent. Pix flashes upside down then back to normal. This takes about 20 minutes but can be accelerated by heating the IC301 with a heat gun.	defective Jungle IC chip IC301
Sony	KP46S25	RA2	color wrong	KP46S25 serial 9026954  Unit has no output from the blue CRT. Swapping the green to the blue socket  does not transfer the trouble.	Unit will need the Blue CRT. G2 voltage running at 33 vdc. On Blue CRT
Sony	KP53EX20	AP	color wrong	KPR53EX20  serial .8001436 unit has poor black and white tracking. Tech needs to know how to get into the internal adjustments to adjust drive to each CRT	There are no drive controls to any of the CRT. The only adjustment that can be made is G2 and focus. All other adjustments are automatic through he IK circuit. Suggest the tech look at each tube faceplate and inspect the phosphor for the normal registration burn. If the tubes are coffee color in the registration area It may just mean we have a set with a lot of hours on the CRT and they simply cannot produce enough light to achieve normal white balance tracking.  According the tech the tubes were very dark in the registration area.
Sony	KP53V65	RA2	colored shadows	KP53V65 Unit has purple and cyan shadows on the screen. These shadows are very pronounced when an all white pattern is shown on the screen	Unit has CRT Burn caused by a DVD player or a CATV marquee that was allow to stay on the screen for an extended period of time.  This apparently is caused when the DVD player has a disk in it and not playing the disk, a LOGO of the disk movie will appear on the screen. On a conventional direct view television this is not a problem if the display is left on the screen for several hours. But this is not true with projection televisions. Sever damage will result if a stationary image if left on the screen for prolonged period of time. This is  especially true with Sony when it is in the external Video input mode and the DVD/VCR is OFF. All Sony's will say "VIDEO" printed on the screen. In 1 to 2 hours the tubes ion the projection television will be destroyed requiring them to be replaced. Replacement cost is over $800.00. Be aware, Do not leave any Projection television "ON" with a stationary picture. Just like screen savers are used to keep the computer monitors from leaving an imprint of an image on the picture tube. This unit will need all 3 CRT
Sony	KP61V45	RA2	colored spot	KP61V45 Unit has a purple dot in the center of the picture. Can be seen in when there is a white screen.	There is a burn in the center  of the green tube. Tech will need to replace the GREEN CRT. Tech also needs to follow the directions for the CRT module upgrade Bulletin # 380. Addition of a 1SS83TD diode between (Anode)@R708 and cathode to IC (pin 6). In the event the IC is not available the CRT driver board is. CRT generic # is 07MAC2(G) The possible subs are 8-733-494-05, 8-733-561-05, and 8-733-577-05.
Sony	KP53XBR45	AP	control panel	KP53XBR35 Unit has symptom of when the volume up is activated the channel down is activated instead. All other buttons act normally on this analog string. Tech did not check the other analog string which is where the "Menu, +, -, and display key.	There are two identical analog keyboard voltage dividers attached to the KSENS0 & KSENS1 lines to the microprocessor. The should act identical in operation. The switches that acts as the volume up was swapped with the Menu key switch. The volume switch began working correctly and the menu stopped. The switch was replaced and now it works correctly.
Sony	KP53XBR45	RA1	control panel	Sony KP61XBR48 When the power button is pushed in the set will shut off then turn back on again	The power on off switch is pushed the logic low that gets sent to the CPU is not staying low. It get corrupted with a bounce caused by the contact in the Power on -off switch. This fix is to install a 2.2 mfd capacitor across the on-off switch to de-bounce the contacts.
Sony	KP61XBR48	RA1	control panel	Sony KP61XBR48 When the power button is pushed in the set will shut off then turn back on again	The power on off switch is pushed the logic low that gets sent to the CPU is not staying low. It get corrupted with a bounce caused by the contact in the Power on -off switch. This fix is to install a 2.2 mfd capacitor across the on-off switch to de-bounce the ON/OFF switch/
Sony	KP41T25	RA2	Convergence	KP41T25.. Red convergence will not write to memory. When convergence is properly aligned red horizontal lines will migrate up or down after time	suggest that the red sub deflection yoke plug be removed. This action eliminates the influence the convergence correction circuitry has over the Red CRT. Once this was done the TV was turned on again and the cross hatch was placed on the screen. One of the intersection points of the Red cross hairs was marked with a post-it note. The TV was allowed to run for 15 minutes. After 15 minutes the red cross hair mover 1/4 inch down the screen. This indicated the CRT was defective. The only deflection the RED tube had was the deflection that feed all the tubes. If vertical center were to drift it would drift on all the CRT not just the RED CRT.
Sony	KP41T65	RA2	Convergence	Sony KP41T65. Cannot converge set. Technician replaced all microprocessors, EPROM, and Convergence output IC's without effecting a cure	I had tech check the data pulses from the Microprocessor to the DAC chips. One of the Data chips was only 3 volts peak to peak Not the 5 volts necessary to communicate to the DAC. Problem was a leaky zener diode D803.
Sony	KP43T35	RA2	Convergence	This TV had a problem with the CRT leaking which were replaced. After replacement the set developed a failure in the convergence Output IC's. Replacing the IC's did not solve the convergence error. It seems that Horizontal convergence was fine. It was Vertical that had no correction signals for R, G, or B.	Checking the Vertical wave generator IC801 we found that it had no vertical correction signals from IC801(4,5,6,& 7). Yet it has a good input at IC801(1) Both B+ & B- were OK on Pins 3 & 9 respectively. Further checking on Pin 18 found "0" volts. It should have been -1.6 volt. Unit had a shorted D820 a 3.3 volt zener diode.
Sony	KP46V15	AP	Convergence	KP46V16.  Unit does not have control of Red horizontal centering	Tech needs to look at the output of IC506(5) for the Red horizontal centering. This IC is the Bus Decoder that decodes the data to 4 separate outputs. Each output is for Red H & V, B H & V Centering. Since the Centering is fine for the B Horizontal and poor for red it is suggested too replace the IC. New IC corrected the symptom.
Sony	KP46XBR25	Projection	Convergence	Unit has an intermittent "Out of convergence" picture. But now the unit is completely dead.	Tech needs to replace the Q603, Q614, R604, D605, both convergence IC's. D605 is shorted.
Sony	KP53V15	AP	Convergence	KP53V15 serial 9011915 Unit was serviced by another service vendor. Unit has a pulsating red convergence .	Tracing the pulsating we find the Output of IC506 has a pulsing on it that is coincident to the pulsing on the screen.  Unit has a defective IC506
Sony	KP53V15	AP	convergence	Sony KP53V15 AP chassis. This unit will not allow the customer convergence centering to function. Tech needs to know where the electronic centering takes place.	Electronic centering is accomplished by the customer using the remote. Serial data codes will instruct the bus decoder IC506 to change the D.C. offset voltage to IC551 on "V board" Defective IC551.
Sony	KP53V15	AP	convergence	Unit has a pulsating red convergence .	Tracing the pulsating we find the output of IC506 has a pulsing on it that is coinciding to the pulsing on the screen.  Unit has a defective IC506.
Sony	KP53V45	RA2	convergence	KP53V45 serial 9011383. Unit has no convergence control.  All dimensions are way out of adjustment and have no effect when adjusting the values of the convergence parameters.	Tech needs to check the protect diodes at the input of the G board. D809, D810, D807, D808. These diodes are the upgrade listed in the latest revision of TVB380.
Sony	KP53V75	RA2	convergence	KP53V75 Unit has and intermittent  Unit had a  loud pop and then the set lost top and bottom convergence , It stayed that way for twp days according to the customer then it popped again and the problem disappeared and the set returned to normal but it lost sound. 1 day later the sound returned and for the past 6 days the set is playing OK.	Tech need to check the CRT sockets for the presence of the safety diodes in the on the cathodes of the power supply.
Sony	KP53V85	RA3	Convergence	How to troubleshooting Auto-Focus error codes	Refer to service manual p. 52 for explanations of auto-focus error codes. Also check the DC voltages on the following A-board components while displaying a white raster (the correct voltages are on the schematic): IC804, Q802 - Q805. Abnormalities may  be caused by damaged D801 through D808. If any of the diodes, transistors, or ICs listed above are found to be defective replace them and prevent future damage by making the following changes: R830, R849, R850, R851 from 100 ohm to 470 ohm (1-216-041-00). Also change R905, R906, R907, R908 from 100 ohm to 1K ohm (1-216-049-00).
Sony	KP57HW40	RA6	Convergence	Converegence drifting requiring to be auto converged each time the set is turned on.	On the AD-Board they have had problen with IC1606 this will cause problems with flash focus not working and the PJE mode in service menu not to be there. Also if the lines don't move when convergening and the voltage to the STK's is good and no blown fuse links to yoke IC1608 had been causing this problem. I.C.1606 - 8-752-925-71 and I.C.1608 - 8-759-829-87
Sony	KP57HW40	RA6	Convergence	This TV had excellent convergence but if a bright red image needed to be displayed the convergence for red moved about a 1/4 of an inch to the left for the entire picture.	Had tech remove all 3 convergence yoke connectors CN8010, CN8011, CN8012 to eliminate all influence from the convergence system. We  marked where red  lines land on the screen using a post-it-note.  When the red object appeared again in the video the red convergence move to the left again. It was determined the trouble was caused by the CRT. The CRT was replace and it corrected the symptom.
Sony	KP61S70	RA3	Convergence	KP61S70  serial  9007325 Unit is 1 day old. The customer claimed the set popped then the set lost convergence control for blue horizontal lines. This mean the vertical sub deflection circuit is malfunctioning	On this chassis all of the sub deflection yokes are protected by fuse links. The fuse for the blue vertical sub deflection is PS1506 an it's open. It is a 2 amp device. Part # 1-533-593-11
SONY	KPR46EXR15	AP	Convergence	KPR46EXR15 Unit has no control over the Red or blue Horizontal centering for the customers convergence adjustment.	Suggest the tech check the possibly that a problem on the "A" board IC506 may be causing the trouble. This IC controls both the horizontal and vertical centering of the red and blue CRT registrations. The Horizontal correction voltages are simply a DC voltage that is fed to the "V" board. The "V" board houses the IC's and drivers that will change the DC offset voltage that effects the Horizontal centering. However these circuits were operating correctly. It was determined that IC902 was running warmer than normal. Unit had defective IC902 CXA1268P the Wave generator was defective.
Sony	KP43T35	RA2	Convergence	This TV had a problem with the CRT leaking which were replaced. After replacement the set developed a failure in the convergence Output IC's. Replacing the IC's did not solve the convergence error. It seems that Horizontal convergence was fine. It was Vertical that had no correction signals for R, G, or B.	Checking the Vertical wave generator IC801 we found that it had no vertical correction signals from IC801(4,5,6,& 7). Yet it has a good input at IC801(1) Both B+ & B- were OK on Pins 3 & 9 respectively. Further checking on Pin 18 found "0" volts. It should have been -1.6 volt. Unit had a shorted D820 a 3.3 volt zener diode.
SONY	KP41T65	RA2	CRT	KP41T65 serial9515238 Tech needs CRT	CRT...Tech is receiving the wrong tube the most recent tube to be received is  A-1501-369-A which is a blue CRT The first wrong tube was   A-1501-373-A also a blue CRT.  Tech is getting the part number off of the tube frame and not out of the service manual. As long has he is using that number he will always get a -blue CRT.
Sony	KP41T65	RA2	CRT	KP41T65 9515238 Needs Green CRT. Tech originally ordered the Green CRT by using the tag on the original tube which is A-1501-372-A . What he received is a A-1501-373-A which is a blue CRT.	I'm not sure who subbed the part but the correct part number is the A-1501-372-A. There are no subs for this tube at this time.  According to Sony World Parts center they have them in stock and can be shipped anytime
Sony	KP41T65	RA2	CRT	KP41T65 serial Needs blue CRT. Tech originally ordered the blue CRT by using the part number from service bulletin # 359R1 . What he ordered is a 8-733-539-05. is a A-1501-373-A which is a blue CRT.	The correct part number is the A-1501-373-A. According to Sony World Parts center they have them in stock and can be shipped anytime
Sony	KP41T65	RA2	CRT	KP41T65. The tech is trying to replace the Red CRT but has received the wrong tube. Tech ordered from the service manual a 8-733-539-05. But it is the wrong mounting structure, and will not fit in the opening of the.	Called Sony World Parts center and obtained the correct part number for the tube. Currently there is no way to find out what tube is in the set by simply looking up the number in the manual. The generic number must be compared to a new list the Sony Part has. We were lucky to find the part number on the original CRT of A-1501-367-A
Sony	KP46C36	RA2	CRT	KP46C36 Serial 9005538  . Unit has a burn in the blue CRT. The unit has an excessive afterglow once the television is turned off. The after glow is only blue. No other colors have this afterglow.	Tech will need Replacement CRT07MAC02B
Sony	KP46S15	RA1	CRT	KP46S15 serial 9013364 Unit has leaking CRT Unit has convergence. Both red and green CRT are leaking coolant leak. Damage is localized to just the CRT's.	Unit will need replacement Red and green CRT's
Sony	KP46S15	RA1	CRT	Unit has leaking CRT. Unit has convergence. Both red and green CRT are leaking coolant. Damage is localized to just the CRT's.	Unit will need replacement red and green CRT's.
Sony	KP46S25	RA1	CRT	KP46S25 serial 9025552. Blue CRT leaking on "E" board. Also the red and green tubes are showing signs of seal rupture around the tubes.	The blue tube has a rupture in the Expansion chamber. Unit needs three CRT's and "E" board. (A-1343-248-A) which is NLA.  Asking tech to go out and get the "E" board to clean it in shop environment.
Sony	KP46S25	RA1	CRT	KP46S25 Serial# 9010029 Unit s blue CRT leaking.	No board damaged by the leaking. Unit has to have the blue CRT replaced
Sony	KP46S25	RA1	crt	KP46S25     serial#  9021406     all  3  CRT's    leaked    damaged  to E-BOARD	Unit needs Blue CRT and attempt to clean the "E" board if possible
Sony	KP46S25	RA2	CRT	Unit has no output from the blue CRT. Swapping the green to the blue socket  does not transfer the trouble.	Unit will need the Blue CRT. G2 voltage running at 33 vdc on Blue CRT
Sony	KP53S25	AP	CRT	KP53S25 Serial 9002282 Unit has burned tubes caused by the word "VIDEO" is burned on the screen	This unit has 3 defective CRT's that have letter burns on them. All three tubes need replacement.
Sony	KP53S25	RA1	CRT	KP53S25 serial 924413 Unit has leaking blue CRT	OK to order the E bard and CRT.
Sony	KP53S25	RA2	CRT	KP53S25 serial 90222755 Tubes are burned from the PIP screen being on the screen for an excessive period of time	OK for CRT replacement
Sony	KP53S35	RA2	CRT	KP53S35 Unit has a LOGO of Bugs life burned into the red CRT.	Unit will need the Red CRT. This should be an ICB to the store since this was damage caused by leaving a DVD player connect to the set with the Bugs Life CD in side. When not playing, and in the standby mode the logo will appear. Since the logo never moves and over a prolonged period of time the CRT's can be permanently damaged with an image burn in the phosphor
Sony	KP53XBR45	RA1	CRT	KP53XBR45     serial# 9012936 Blue  CRT  leaked    dropped  over   E-board	Unit needs Blue CRT and attempt to clean the "E" board
Sony	KP53XBR45	RA1	CRT	KP53XBR45.Serial#  9015424 Unit had two CRT's Red and Blue leaked on the original "E" board prompting their replacement. After changing the CRT's and the "E" board it was discovered the set had a symptom of immediate shut down.	When checking IC901(1&13) and IC903(13) we had no positive voltages that would cause a high voltage protect shut down. At no time did we ever get high voltage or Horizontal drive, for the High voltage output, Q801. However Q505, the horizontal driver for the horizontal output always had drive to it.  When the first technician replaced the original circuit board it was discovered that he did not transfer the jumpers on  CN804. There must be three jumpers on this connector otherwise the set will never get high voltage. CN804(1&2), CN804(3&4), CN804(5&6). Unit needs these three jumpers to route the 2 ABL circuits, .Horizontal drive pulse. Replacing these jumpers restored normal operation.
Sony	KP53XBR45	RA1	CRT	KP53XBR45 serial 9032096. Unit has burned CRT's again. CRT were replaced in October of 1998 because of a bar burned across the face plate. Now the same bar is burned across the face plates of green and blue CRT's. This is caused by the stock market channel and or CNBC banner at the bottom of the screen	This customer was warned last year this would be a 1 time replacement for this symptom. They were warned that continuous display of a stationary image will burn any CRT especially a projection television.
Sony	KP61XBR200	RA4	CRT	Unit has all three CRT burned from running at the store. Unit was sold as a open box item with the tubes already burned. Once all the tubes were installed the tech could not set the Green. Green.  During the setup of the Green CRT the unit gave an Error 80.	This error code is an indication the GREEN SKEW is off. There are no electrical adjustments for green skew. What need to be moved is the mechanical rotation of the deflection yoke.  The auto convergence is an very unforgiving if the yoke has any tilt at all.
Sony	KP41EXR96	ANU-1	Dead	Sony ANU-1 chassis. Unit has defective horizontal output transistor	Apparently nothing else is damaged with this chassis. However if the horizontal output is shorted after several hours of operation. Unit has defective horizontal driver transformer and driver transistor. Leads on driver transformer show signs of oxidation
Sony	KP41EXR96	AP	Dead	.KP41EXR96 unit dead. Will not power up. But will turn if the convergence board is disconnected. Customer claimed, "Picture separated in to colors then the TV went out."	No 15 or -15 volt supply….Diode D605 shorted. Feeds all devices on the + and - 15 volt supply line. Note the replacement Dual diode be sure it is a common ANODE device.
Sony	KP41EXR96	AP	Dead	.KP41EXR96 unit dead. Will not power up. But will turn if the convergence board is disconnected	The 15 or -15 volt supply was missing….Diode D605 shorted. Tech should check all devices on the + and - 15 volt supply line as well as the 4 post regulators on the "D" board. Tech found a shorted C1742 located on the "D" board. It connects between the -15 and + 15 regulators IC905, IC906.
Sony	KP41T15	RA1	Dead	KP41T15 serial 9012082 Unit has a burned hole in the "D" around  R1625, R1627, R1629, & R1621	Board will need to be replaced. Hole is approximately 1 inch square hole under IC1601 the suppport the current limiting resistors. Board number is A-1346-296-A and is no longer available from Sony World parts center. An effective repair was to cut a square hole in the board material large enough to remove the chared area. Another piece of perf board material was cut and shapped to fit snuggly in the area of the old board that was cut away. All new resistors were installed and hardwired in to original specifications. Expoxy was used on the newly inserted board material to fix it in position.
Sony	KP41T15	RA1	Dead	KP41T15 Unit is Dead. Was hit by a power surge D655 was defective. Unit still will not power up after the device was replaced	All power supplies are normal in operation Unit has Horizontal sweep when checking the Q505(C) we have over 900 v peak to peak . We do not have High voltage or high voltage drive to Q801(B) or Q810(B) find no horizontal drive. Checking the HV protection circuit finds the IC902(1) is sitting at 6.2 volts. This is because IC902(7) is higher than IC902(6). This is attached to the OCP circuit. It is conceivable the flyback is shorted on this due to the fact the 135 vdc OCP line is being triggered.  Unit did have a shorted flyback transformer
Sony	KP41T15	RA1	Dead	KP41T15. Unit has coolant leak which destroyed the "E" board.	Unit will need a replacement "E" board.
Sony	KP41T15	RA1	Dead	Unit is Dead. Was hit by a power surge.  D655 was defective. Unit still will not power up after the device was replaced	All power supplies are normal in operation. Unit has Horizontal sweep when checking the Q505(C) we have over 900 v peak to peak . We do not have High voltage or high voltage drive to Q801(B) or Q810(B) find no horizontal drive. Checking the HV protection circuit finds the IC902(1) is sitting at 6.2 volts. This is because IC902(7) is higher than IC902(6). This is attached to the OCP circuit. It is conceivable the flyback is shorted due to the fact the 135 vdc OCP line is being triggered.  Unit did have a shorted flyback transformer.
Sony	KP41T25	RA1	Dead	KP41T25 serial 9003158. Unit is dead. All three tubes are leaking. Unit has been leaking for quite a while.	The "E" board is heavily corroded  and cannot be sufficiently cleaned. E module and all 3 CRT's must be replaced.
Sony	KP41T25	RA1	Dead	KP41T25 serial 9006330 Unit is dead.	Further checking has discovered the "E" board has a large hole burned through the board caused by a coolant leak from one of the CRT
Sony	KP46C36	RA2	Dead	KP46C36 serial  9010238. Unit has shorted horizontal output transistor for the third time. All three CRT's have been replaced two months ago. All has been well up to this point. The set failed again now we are faced with changing the CRTs again but we are at this point are going to replace the "G" board in its entirety	Unit has shorted horizontal output transistor. "G: board must be replaced as a complete assembly. Also all three CRTs are burned again.
Sony	KP46C36	RA2	Dead	KP46C36 serial 9002356. Unit is dead. C608 the main raw B+ filter capacitor is vented along with IC6601 shorted.	It apparent the television either had a significant A.C. line voltage surge or C608 just took this time to blow. Either way the tech should replace C607, & C608 along with IC601.
Sony	KP46S15	RA1	Dead	KP46S15 serial 9013723 DEAD. Unit has leaking CRT's. Both red and blue CRT's are noticeably leaking with the green showing signs of moisture around the expansion chamber	Unit will need replacement CRT and the convergence output IC's.
Sony	KP46S15	RA1	Dead	KP46S15. Unit has an over heated stand by transformer. The 20 volt source is running at 3 volts.	I had tech disconnect the connectors to the "M"  board M  CN653 on the "G" board. This removed the load on the 20 volt stand by and let the 12 volt stand by to rise to near 20 volts too. It is possible we have two regulators bad IC652 and IC001. IC001 may have been damaged by too much voltage on its input because of a defective IC652. OR there is a sever load on the output of IC001 the 5 volt standby on the "M" board where the 12 volt stand by enters on connector CN053 Pin 1 then to the IC001 a post 5 volt regulator. There is also a 1000 mfd @ 6.3 vdc on the output of the 5 volt post reg. Suggest the tech bring out both regulators and the capacitor C002 as a precaution.  As a idea this board can be worked on outside of the
Sony	KP46S15	RA1	Dead	DEAD. Unit has leaking CRT's. Both red and blue CRT's are noticeably leaking with the green showing signs of moisture around the expansion chamber.	Unit will need replacement CRT and the convergence output IC's.
Sony	KP46S15	RA1	Dead	Unit has an overheated standby transformer. The 20 volt source is running at 3 volts.	I had tech disconnect the connectors to the "M"  board M  CN653 on the "G" board. This removed the load on the 20 volt stand by and let the 12 volt stand by to rise to near 20 volts too. It is possible we have two regulators bad IC652 and IC001. IC001 may have been damaged by too much voltage on its input because of a defective IC652. OR there is a severe load on the output of IC001 the 5 volt standby on the "M" board where the 12 volt stand by enters on connector CN053 Pin 1 then to the IC001 a post 5 volt regulator. There is also a 1000 mfd @ 6.3 vdc on the output of the 5 volt post reg. Suggest the tech bring out both regulators and the capacitor C002 as a precaution.
Sony	KP46S15	RA1	Dead	Unit will not turn on. At no time can a "Click" be heard from the "G" board when the power is applied or when the power is turned on.	I had the tech measure the Standby B+ at the input of IC652(1) The voltage should be 24 vdc. We only had 9 volts. Checking with an oscilloscope we found 22 volts peak to peak on the input of the regulator. Unit had defective C667 a 470mfd@ 35 vdc. Replacing the capacitor corrected the symptom.
Sony	KP46S26	RA1	Dead	KP46S26 Serial 9003745. The set is completely dead	All three tubes are leaking. Coolant leaking on "E" board.
Sony	KP46S55	AP	Dead	KP46S55 serial 9104007  Unit is a dead set Unit has an extremely hour glass picture. Q508 getting very hot.	Tech needs to check the B+ on the emitter of the Horizontal output. Tech will need to check the areas around the Q508 and it's drivers. It was found the voltage was normal but. Q508(C) was at -106 vdc. Further visual inspection on the driver Q507 found ring fractures in the solder connections in this circuit.. While the voltages were being measured the set began to operate correctly.
Sony	KP46S55	AP	Dead	Unit is a dead set. Unit has an extremely hour glass picture. Q508 getting very hot.	Tech needs to check the B+ on the emitter of the Horizontal output. Tech will need to check the areas around the Q508 and it's drivers. It was found the voltage was normal but Q508(C) was at -106 vdc. But further visual inspection on the driver Q507 found ring fractures in the solder connections in this circuit.. While the voltages were being measured the set began to operate correctly.
Sony	KP53S35	RA2	Dead	SONY KP53S35 RA-2 chassis. Unit is dead. Tech ordered Q601 in the "G" board power supply section. No change in the symptom.	After replacement, voltage checks indicated the E2, and B2 voltages at IC601 were 340 volts. E1 and B1 were always "0". One of the soft start resistors, R614 was open. R612, R613, R614, & R615 are responsible for the initial start up of this power supply.
Sony	KP53V15	AP	Dead	Unit is dead. Will not turn on. Just shuts down	Q811 shorted. Tech replaced the transistor with a 2SD188. Tech checked the distribution of high voltage for pin holes in the lead dress. Nothing was found. The transistor did not overheat and he let it run for 45 minutes. Suggest the set run for a while and see if it shorts again. All looks well in its operation.
Sony	KP53V15	AP	Dead	Unit was dead. Power supply was damaged by short circuit in 1 or more of the convergence output IC's. The customers complaint started out with the convergence alignment shifting out on the sides, then the set went dead. Checking the "D" board (convergence pcb) found will found 1 fuse open (could have been both).  Further inspection found will find 2 or more resistors (R1729 & 1808) burnt black beyond recognition. DO NOT overlook any other shorted or open parts in the power supply or the "N" Board especially D605 the -18 vdc dual diode. This is all I have ever found..*replace both IC's don't create a possible Call back, make it a habit.**you'll find them either leaky, open or shorted but don't overlook anything...	The cure that I have found on a couple of occasions are as follows: D Board;---- F901 or F902  = 3.15 AMP 250V FUSES OPEN------------  IC 1704/1705  = STK4278L  POSS. SHORTED REPLACE BOTH*------- "D" BOARD R1729 & 1808 = 1 OHM .5 WATT RES.----------------BURNT Q603 OR 614 = 2SC4582TRANSISTOR  1 OR BOTH SHORTED--------------"G" Board; D605 = 8-719-988-31  DIODE**----------------- D650= 8-719-160-81  DIODE-----------------D604 = 8-719-510-09  DIODE**-----------Q616= 8-729-017-05  TRANSISTOR**----------D616 = 8-719-025-81  DIODE**
Sony	KP53V75	RA2	Dead	KP53V75. Unit is dead. Will not start up. Just has the flashing red LED on the front of the set. Disconnecting the connector CN501( which removes the 200 vdc load created by all 3 CRT drive modules does not allow the set to turn on.	Tech did not measure any  voltages on the "G" board. These must be confirmed before we can possibly know where to go looking for what might be wrong. It is possible nothing is shorted in the power supply and we has an open start up resistor in the base circuits of IC601. Tech needs to check R609, R610, R611, R612. all are 220K and have been known to open causing a "Dead Set" condition.
Sony	KP53V75	RA2	Dead	Unit is dead. Will not start up. Just has the flashing red LED on the front of the set. Disconnecting the connector CN501( which removes the 200 vdc load created by all 3 CRT drive modules) does not allow the set to turn on.	Tech did not measure any  voltages on the "G" board. These must be confirmed before we can possibly know where to go looking for what might be wrong. It is possible nothing is shorted in the power supply and we has an open start up resistor in the base circuits of IC601. Tech needs to check R609, R610, R611, R612. all are 220K and have been known to open causing a "Dead Set" condition.
Sony	KP53XBR45	RA1	Dead	KP53XBR45 serial number  9017123 Unit is dead. The set went up in smoke. Customer unplugged the set and called for service.	Unit has burned  A board on the corner 1E coordinated. This circuit is for the dynamic focus output and the 3 horizontal deflection yoke drives. The corner is completely burned away from the A board. Tech will need a replacement AA board A-1297-540-A.
Sony	KP57HW40	RA6	Dead		Q8035 (8-729-050-13) and Q8038 (8-729-038-10) has been shorting these are on the D-Board.
Sony	KP61V25	RA1	Dead	KP61V25 serial 9001930 Dead	Unit has no high voltage. "E" board is wet from glycol coolant leak from the Red and Blue CRT's that are leaking Red an Blue tube
Sony	KP61XBR48	RA1	Dead	KP61XBR48 Unit is dead. Q601 & Q602 are shorted along with R607 open. Preliminary checks of the secondary loads on this supply indicate no shorts circuits. Replacement of these devices again resulted in the instant failure of these transistors again.	Forcing the power supply on with artificial loads on the + & - 135 vdc power supply allowed the supply to run correctly. High voltage was disabled by removing G4 connector. This disables the B+ to the High voltage output transistor Q801.  It should be known this television has a High voltage output transistor and a Horizontal output transistor Q508. With the HV disabled we could check out the H. output stage with reduced B+ and current by placing a 40 watt light bulb in series with the -135 source. Al power up with the shutdown defeated, the bulb lit up brilliantly. This indicated too much current. A process of elimination indicated C514 was breaking down under operating voltages. The value was a .0068 @ 1.2KV. I physically measured .001 mfd. Replaced with a 1-136-613-11.
Sony	KPR53EXR15	AP	Dead	KPR53EXR15. Unit had no power Unit has Q603 and Q614 are shorted. When all are replaced only Q614 shorts.	Tech needs to apply power to this unit easily, with the use of a variac. While watching current go up gradually. Suggest that the "D" board be disconnected and see if it will turn on with no more than 1 amp of current. It did not. An Amp of current was reached at 38 vac.. Further checking found a leaky D605.
Sony	KP51WS500	RA6	Dead	Unit is dead. Will not turn on.	Visual checking on G board found that C5054 was broken off the board.
Sony	KP57HW40	RA6	Dead	Unit will not turn non. Stand by supply is operational. But it will not turn on.	The "B" board was rempoved and the television turned on but had not raster. The "B" board was substituted and the set operated. Problem was the B board.
Sony	KP46S15	RA1	Dead	KP46S15 Unit will not turn on. At no time can a "Click" be heard from the "G" board when the power is applied or when the power is turned on.	I had the tech measure the Standby B+ at the input of IC652(1) The voltage should be 24 vdc. We only had 9 volts. Checking with an oscilloscope we found 22 volts peak to peak on the input of the regulator. Unit had defective C667 a 470mfd@ 35 vdc. Replacing the capacitor corrected the symptom.
Sony	KP53V25	RA1	Dead	KP53V25 Unit will not turn on. Shorting the Emitter and base of highvoltage output allows the h. drive to appear at the collector of the h. driver transistor. Update: unit had bad flyback. Anode lead will not come out of flyback. Must replace lead link fro	Anode 1-900-211-34 short link for anode lead
Sony	KP53V75	RA2	Dead	KV53V75 Unit will not turn on.	I had tech check continuity on the AC line cord which would measure the resistance of the Stand by transformer. Continuity was 570 ohms which is good. Next the tech needs to measure the input of IC641 it must be 20 volts. IT Was. The output of IC641 was "0" This IC is a 3 legged linear regulator with a generic # of 7812. It should have had a 12 volts output.
Sony	KP53XBR45	RA1	Dead	Sony KP53XBR45 unit is not turning on.	F601 & f602 are open. Factory upgrade. Replace C815, C897, 858, & 889 from a 1000mfd @ 35 vdc to a 470 md @ 35 vdc.
Sony	KP57HW40	RA6	EEPROM	Where is the EEPROM located that stores the alignment data for the convergence?	The EEPROM Location for the AD-Board is I.C.1607
Sony	KP53XBR35	AP	ghosting	KP53XBR35 After unit has been playing a while the picture will duplicate it self on the left side of screen. Customer was able to take a photograph of the symptom,	The duplicated picture is in the proper chroma phase, sync, brightness, and contrast.  but is slightly elevated in height about 3 or 4 horizontal lines. The symptom may stay on the screen for a few minutes or several hours. The second phantom picture is delayed by, what calculates in the photograph, 31 microseconds which is about 1/2 H. Forwarding this case to Sony. This symptom is intermittent. Recommend the Digital comb filter for this unit to be replaced. Since the jungle IC was replaced to try and correct this symptom with.  The digital combfilter is the only thing that could cause the storage of several lines of video and insert it in the wrong spot if the digital counters in the combfilter malfunction.  Swapping the combfilter cured the symptom.
Sony	KP53HS30	RA4	Green flashing	The main picture will turn green intermittently.	The A & B board contain all the circuitry for PIP & Main picture. Found the B Board causing the problem. Replaced the board and symptom disappeared. Part # A1136-218-A
Sony	KP46S25	RA1	Green Missing	Sony KP46S25. Unit turns purple (looses green)	There has been a case history problem with the sample and hold capacitors C313, C314, C315 in the jungle IC circuit. These devices become leaky and cause a loss of 1 specific color.
Sony	KP53S55	AP	HIGH VOLTAGE	Unit has no high voltage, Tech replaced the High voltage block and the set still has no High voltage.	Measuring the B+ 's at the "A" board connector A2(1 &9) we find -90 & +115 respectively. The -90 is wrong. It should be -135 vdc. Measuring the collectors of the Drivers for the HV output Q806, we find the voltage at 122. This would indicate the Horizontal drive may be missing. Tech needs to look at the H driver circuit for a no drive condition.
Sony	KP61S70	RA3	HIGH VOLTAGE	KP61S70 serial 9005015. Unit is not developing high voltage but has Sound. No secondary voltages from Main power supply	Recommend that the tech order the "G" board. Unable to provide part number.
Sony	KP61HS10	RA4	High voltage missing	Unit has sound but no raster. LED blinking 5 times indicating a IK blanking problem. This was because there was no beam current. No beam current, no IK feedback.	When checking the horizontal output waveform at the high side of the deflection yoke we found a normal horizontal pulse. When checking the vrertical output at CN5008(1) we had a normal vertical pulse. The abnormal condition was noticed on the HV output transistor Q8007 was 135 vdc on all three elements. It was discovered that the HV regulator transistor (Q8008) had a Gate to Source short.
Sony	KP53S55	AP	High voltage missing	KP53S55 Serial 9003661. Unit has no high voltage, Tech replaced the High voltage block and the set still has no High voltage.	Measuring the B+ 's at the "A" board connector A2(1 &9) we fins -90 & +115 respectively. The -90 is a wrong. It should be -135 vdc. Measuring the collectors of the Drivers for the HV output Q806 we find the voltage at 122. This would indicate the Horizontal drive may be missing. Tech needs to look at the H driver circuit for a no drive condition.
Sony	KP53V75	RA2	High voltage missing	KP53V75 serial 9008493. Unit is not turning on. The power supply turns on but it will not develop high voltage.	I asked the tech to remove CN501 from the "G" board and try starting the set up again. The set turned on and developed high voltage. Tech did not follow instructions in the bulletin #396. This area was covered in detail in the class. Unit has a shorted Red CRT and burned video driver IC on the CR board. Tech will need the CRT, and the RED CRT driver board
Sony	KP46S25	RA1	HORIZONTAL	KP46S25  This set has horizontal overscan. Tech was trying to find a failure in the circuit that houses Q811.	The tech was in wrong area of the chassis. The area he should be in is the Horizontal output not the High voltage output. The set uses Q510 as H. Output, and Q509 as pin output. Tech needs to verify the presence of Vertical parabolic drive signal at R501 on the "A" board.
Sony	KP53XBR35	AP	horizontal	Unit has a intermittent symptom of a horizontally doubled picture.  In other words, if a 1 inch wide re vertical bar were to be displayed at the center of the screen another I inch wide red vertical bar would be seen about 4 inches from the left side of the picture.	Recommend the Digital comb filter for this unit to be replaced. Since the jungle IC was replaced to try and correct this symptom.  The digital combfilter is the only thing that could cause the storage of several lines of video and insert it in the wro