Sony Television User Manual

MODEL Chassis KEYWORD SYMPTOM CURE

the older chassis type that requires H stat convergence (CRT

TSS Logs for Sony Television Products

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Unit has an open R789 a 18 meg 1/2 watt resistor for the Horizontal static convergence. The tech will have to make a resistor out of 3, 6.2 meg resistors. Suggest tech look for R789 and see if it is open It is on the on "C" board. It The value is around 10 meg. There are two different chassis and CRTs used for this model. If they have

board has H stat control) they need to order the older CRT as per the manual. If newer type (No H stat) then the new CRT as per Service Manual supplement -1 is needed. CRT 8-733-743-05 The H Stat is done using the Yoke ring magnets. I have attached the two Service Manual supplements, and the SB325R1. Suggest tech look for R789 and see if it is open It is on the on "C" board. It The value is around 10 meg. There are two different chassis and CRTs used for this model. If they have

KV32XBR45 AA-1 CONVERGENCE

Sony

KV32XBR45 AA-1 CONVERGENCE

Sony

KV32XBR45 convergence is way off in the horizontal direction

KV32XBR45 Unit has convergence of all vertical lines are displace horizontally. Tech replaced the CRT without authorization. This did not solve the symptom

KV32XBR45 Unit has sever Horizontal static

KV32XBR45 AA-1 CONVERGENCE

Sony

convergence error. TV cae to us from another shop where the CRT and flyback was replaced. Customer call us for secont opinion.

board has H stat control) I have attached the two Service Manual supplements, and the SB325R1. However none of them have show this resistor. We were able to install a resistor in this unit that was a two 10 megs in series. Trimming the value by adding another 10 meg in parallel with one of the other 10 megs. we were able to converge the set. Original part was not available.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

the older chassis type that requires H stat convergence (CRT

board has H stat control) they need to order the older CRT as

Unit is trying to constantly adjust the vertical height

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R789 open H-state not operational. What I'm finding is a resistor that appears to be open on this "C" board It is R789 The value cannot be read nor is it listed in the ESI software

KV32XBR45 AA-1 CONVERGENCE

Sony

KV32XBR45 AA-1 CONVERGENCE

Sony

KV32TS46 AA-1 dead

Sony

KV32XBR45 AA-1 GEOMETRY

SONY

Unit has mis-convergence of red and blue vertical lines. They are displace horizontally. Tech replaced the CRT without correcting the symptom.

Unit has nis-convergence of red & blue vertical lines which are displaced horizontally. Tech replaced the CRT. This did not solve the problem.

Unit was dead. has shorted horizontal output and shorted Q601, & Q602 components in power supply replaced. After replacement unit will turn on but still has no secondary voltage output of power transformer. All relays click but no high voltage. Has sound.

and horizontal size intermittently.

parts list. Trying another value from 10 to 20 megohms. This resistor is in the ground return of the H-stat resistor that is installed in the CRT. Tech needs to try different values to try and make this set converge horizontally. This TV converged with a 10 megohm resistor.

Suggest tech look for R789 and see if it is open It is on the on "C" board. The value is around 10 meg. There are two different chassis and CRTs used for this model. If they have

per the manual. If newer type (No H stat) then the new CRT as per Service Manual supplement -1 is needed. CRT 8733-743-05 The H Stat is done using the Yoke ring magnets. Tech needs to check the condition or RY602. RY602 is the switching relay that turn on and off the set. The relay is "HOT" switched. In other words one side of the relay is connected to power oscillator output that runs nearly 350 vac Peak to Peak at 90Khz. Once the relay is closed this energy is placed across the power output transformer and provides the drive necessary to produce the B+.Measuring the input voltage of the relay to "HOT' ground found it to be 150 volts DC mode. But on the other side of relay we has 3 volts DC mode. Unit has defective RY602 relay. When monitoring the E/W Pin output of the M board the signal was very instable. It was decided to replace IC351 the Jungle IC. This corrected the trouble.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

current there shall be about 1 volt on each collector. With the

connected or not. Tech needs to short Q771(E&B) and see if

KV32XBR250

in the 8 mm VCR, this close proximity to the TV, and the lack

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Sony AA-1 chassis. Unit no high voltage or sound.

KV32TW77 AA-1 No high voltage

Sony

KV32XBR37 AA-1 NO RASTER

Sony

KV32XBR85 AA-1 NO RASTER

Sony

AA-1 Noise Video

Sony

RY602 latched at turn on. Tech replaced the flyback and Q601, Q602, VDR601, VDR602, VDR603 & R607. After theses components were replaced the unit still did not produce secondary B+. Only 3 volts on the collector of the Horizontal output.

KV32XBR37 serial 80139945. Unit has no raster. Has sound, CRT filaments, and high voltage. Led in front is flashing

KV32XBR85 Unit has no raster. Has sound and weak OSD. Stand-by light is not flashing.

Sony KV32XBR50 This customer has a Goldstar 8mm/VHS dual deck VCR located under this television on the built in shelf. When customer uses the 8mm deck the playback of the tape has corrupted audio, and poor tracking performance when played back on this television

Inspected the Power oscillator and discovered that it was running and producing 167 volts DC at the input side of RY602, but a <13 volts on the low side. Jumping RY602 restored High voltage. Unit had a bad RY602 relay in the power supply.

Tech may have a IK failure. When bringing up the G2 the raster will appear with full vertical sweep and a purple screen. Not much green. Tech needs to look at the IK buffer collectors on Q771, Q772, & Q773. Normally with beam

CRT Socket removed all collectors must drop to "0" volts. Q771 did not. It was 1.2 volts regardless if the tube was

the collector will drop. It did not. TV will need a replacement Q771. Replacement cured the symptom. Unit appears to have a normal IK feed back to the jungle IC. Screen voltages are 670 vdc and the cathode is running at 180 vdc. Unit looks like a defective Jungle IC. Replacing the Jungle IC corected the symptom. The design of the 8mm format is significantly different from that of the VHS. The 8MM format does not have any stationary heads and completely relies on the signals from the rotary video heads on drum. 4 ATF (Auto Tracking Fix) carriers are recorded on to the tape. Apparently the shielding

of shielding in the Sony TV caused the corruption of the 4 ATF signals. Placing the VCR on the bottom shelf of the TV cabinet corrected the symptom.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

Tech needs to look into the Data & Clock lines of the chassis.

function RMY102 remote is being used. The menu

selection of any of these are tried nothing happens.

codes are within normal values. Suggest the tech replace the

horizontal output transistor is normal. No shorts can be found

volts. Transistor is in cut off. Bases and emitter are the same

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KV36FV15 AA-1 RASTER

Sony

KV32TW67 AA-1 remote

Sony

KV32XBR35 AA-1 shut down

Sony

KV32V16 AA-1 shutdown

Sony

KV32XBR45 AA-1 WEAK VIDEO

Sony

KV36FV15 Unit will turn on with the front panel control but the set will not develop raster or sound. The high voltage will turn but no raster. After 3 minutes the raster and sound will appear

KV32TW67 serial 70040800 Remote does not

displays when in the "menu" button on the remote is pressed. We are able to highlight each area of the menus selection which are the "Video, Timer, Setup, and closed caption" choices. But when

In the service mode Service menu the service menus comes up with AFC as the first selection. However the binary number (1000) displayed under the word "Service" keeps changing from 1000 to 1100) randomly

Unit will shut down each time the Remote headphones circuit is turned on.

KV32V16 serial 7089163 Unit will not stay on. Goes into shut down immediately after turn on

Sony KV32XBR45 Unit has a very faint picture But the OSD is fine. Problem shows up in the tuner and video input mode. Tech ordered Q401 but did not correct the symptom

These lines must be 5 volts peak to peak and have a typical word length of 1000 milli seconds. Tech discovered the SDA pulses were 3.3 volts peak to peak whereas the CLK pulses were at 5 volts. Tech had to isolate each load on the SDA line and found the PIP tuner was responsible for loading down the DATA line.

The remote has been changed without effecting the symptom.. This appears to be a system control failure. All ID

following components IC101 and IC102 are 8-752-856-00 and 8-759-280-74. The components correct the symptom.

Unit has an intermittent short to ground on the IR12 volt line located at the output of IC202(3-4) located on the "A" board. This short was caused by a solder splace on that circuit . When HV comes up the signal at the Collector of the

in the power supply. PM501(1-810-061-21) & IC601(1-810477-11). PM501 was to culprit in this case. There is video at the base of Q401 but not at the emitter. Q401 measures 9 volts on all elements. Base must be 4.5

9 volts. Unit has open R617 a 680 ohm resistor.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

it was less than .015 volts measured at the customers ground

KV32V25 serial 7036251. Unit has an arcing inside

must be there in order for the set to have any vertical sweep.

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KV32S40 AA-2 A.C Hum

Sony

KV27V10 AA-2 AC leakage claim

Sony

KV32V25 AA-2 arcing

Sony

KV32V26 AA-2 arcing

Sony

KV35V76 AA-2 ARCING KV35V75 CRT is arcing in the neck The CRT is bad.

KV35XBR48 AA-2 ARCING

Sony

KV32S40 serial 9028282 that has a low level audio hum in the video input or tuner mode. Looked in the FPR on web site but could fine nothing on the subject. The hum is at 60 Hertz

KV27V10 serial 7104657. When the CATV rep was out a few days ago he plugged in the set in to wall and when the prongs made contact with the AC wall outlet a small spark was seen. The CATV rep exclaimed, "The television is a fire hazard, and you need to call for service!" He left the set unplugged and we went out on this day.

the flyback transformer. Tech replaced the transformer now the unit has a bright band at the top of the screen. The tech replaced the jungle "IC without effecting the symptom KV32V26 serial 8019814. Arcing in the neck off CRT

KV35XBR48 serial 9014229. TUBE ARCING IN THE NECK

The hum is a result of magnetic flux from the vertical deflection yoke. The 60 hz is radiating into the low level audio circuits through inductive pick up from lead dress and ground loops. To minimize these Remove JW086 and JW1007.Add 22AWG wire from JW270 to ground side of R477. This wire should be on the top side of the A-board and routed to following the audio signal lines from IC1401 (audio Our tech plugged in the set and found the set did have a spark as soon as the set was plugged in the AC outlet. This is perfectly normal because this chassis has to fully charge 2 820 mfd electrolytics in a voltage doubler configuration. This causes a tremendous amount of in rush current that may draw several amperes until the filters are charges up. This will cause a contact arc the moment the set is connected to the AC line. This set poses no more fire hazard than any other electrical device that plugs into the AC outlet. We also performed an A.C leakage test on the chassis and found that

connection and neutral. Tech noticed the +15 volt source was lower than expected. It was only 10 volts. It is not unusual. The voltage is normally 12 volts. What the tech was missing is the -15. This voltage

D530 was shorted and open R536 the 0.47 ohm current Tech will need replacement CRT A80JYV51X

unit will need CRT A89LJT80XZ

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

Audio level adjustments will not increase in a linear

put to the input. It can be seen with an oscilloscope on one of

Tuner/IF/MTS decoder assembly. Replacement corrected the

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A new microprocessor is available for this unit. It is part

KV27V65 AA-2 AUDIO

Sony

KV27S45 AA-2 AUDIO

Sony

KV32S65 AA-2 audio

Sony

KV27S20 AA-2 Audio

Sony

KV27S36 AA-2 audio

Sony

fashion, instead the audio will increase rapidly in the first 1/3 of the bar graph.

KV27S45 serial 8046950 Unit has a very rapid change in volume when increasing the level from minimum to 4 notches above minimum

KV32S65. Serial # 8014575. Sound and picture is fine but when the fixed or variable audio out is connected to an external audio amp and the set is muted a loud pop is heard in the right channel.

Sony KV27S20. Unit has a low pitch whine in the left audio channel.

Sony KV27S36. Unit has choppy SAP audio. Stereo 0.K.

number T-998-600-32. It replaces the original IC001 which was M37273MF-251 Tech needs to add a resistor in parallel with R432 to effectively reduce the value of R432. This changes the voltage divider ratio to the volume control circuit and makes the volume circuit more linear in operation. I had the tech try to measure if there was any DC voltages that resided on the Variable audio output connectors. There was "4.5" volts on the Right channel and "0" volts on the left channel. When the "Mute" transistors on the variable line triggered they pulled both lines to ground. When the external amp was connected to this circuit the input capacitor for the right channel charged with this 4.5 volts. We still had audio on this line even though it was at a 4.5 vdc potential. But when the Sony muted, the input capacitor inside the Big External amp discharged and caused a tremendous pop. C172 is a .47mfd used to decoupling the audio from IC101 the Variable audio control IC. This capacitor had 4.5 vdc on each leg measured to ground. Removing the capacitor and measuring the DC resistance across the cap measured 175 ohms. Replacement of the capacitor corrected the symptom. Problem is best heard in the video input mode with no signal

the output pins of IC1401 but not on the input. Part number is 8-759-369-39. IC1401 corrected the trouble. All SAP, Stereo, and mono functions come from the Tuner assembly and nowhere else. If a problem exists for the S.A.P. feature all circuitry relating to the feature is replaced when the tuner assembly is replaced. Recommend the

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

receiver. VCR and over air signals have solid color

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KV27V65 AA-2 audio

Sony

KV35XBR35 AA-2 B&W Tracking

Sony

KV27S22 AA-2 BRIGHT RASTER

Sony

KV35S26 AA-2 CHROMA

Sony

KV35S26 AA-2 chroma

Sony

Sony KV27V65 Sound does not ramp up correctly. Seems to get very loud as soon as the volume gets higher in a very short time KV35XBR35. Unit has color temperature error in the YUV input mode only

KV27S22 serial # 8102548. Unit goes to a bright blue screen with retrace lines then shuts down.

KV35S26 Unit has the tint phase shift and color lock up problems only on the Hughs satellite

lock up.

KV35S36. Unit has random chroma phase shifting. The tint will vary radically. NTSC color bars are not stable. "Barber Polling" effect of colors on bars.

I had tech get into the ID codes and reset ID2 from 239 to 175 and ID 4 from 130 to 194. Then initialize the EPROM . Set returned to normal operation According to Sony tech support there is no adjustment for this input. Refer this customer to Sony customer affairs.

Unit has a defective CRT. When unit is able to turn back on again the set will sometimes be in the video input mode. This symptom acts like it is a problem with the satellite receiver. Inside the satellite receiver there is a NTSC encoder which injects the 3.579547 MHz color oscillator signal in the video. If this oscillator is too far off frequency it will not phase lock with the 3.579545 MHz in the television. This is a software problem with the Satalite receiver. A software download will be available to all receivers in Late Suggest the tech look very close to the connection s to IC351(4) This the Chroma AFDC filter. Components R354, C355, C355 are in the AFCFIL circuit. It is possible the trouble is a Jungle IC but Before replacing it is recommended to check the aforementioned components first. Note: when checking the components it was found that C366 has glue touching each end of the device. The glue effectively changed the value of the device. Cleaning the glue and reinstalling the device corrected the problem.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

input labeled VHF/UHF the set will picture will lose

and a satellite dish. The CATV is being feed into the RF input

Original CPU CXP85640-005S The new device is CXP85640-

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The customer is using two different RF sources. Cable TV

KV35XBR20

Sony

KV35XBR48 AA-2 CHROMA

KV27S20 AA-2

KV27V20 AA-2

KV35V75 AA-2

AA-2 CHROMA

CLOSED

CAPTION

CLOSED

CAPTION

CLOSED

CAPTION

CLOSED

CAPTION

KV36XBR200 When the customer is using the RF

chroma intermittently. But when using the AUX input the chroma is solid and does not vary. The tech replaced the RF switch without effecting the symptom.

Unit is connected in to component video input mode through a DVD player. The picture has a predominately green picture KV27S20 serial # 7042141 Unit will not operate in the closed caption mode if using the DVD player. However if the television operates in the tuner mode for over the air telecasts, closed caption works fine.

KV27V20 8015729 No closed caption on premium channels

KV27V20 serial 8015729 Unit does not have closed caption on premium channels

KV35V75 9006691 Unit does not have closed caption on premium channels

labeled VHF/UHF and the satellite is fed into the AUX input. It appears the tuner does not correct the AFT when two different RF sources are used. The channel will has to be readdressed again for any AFT correction to occur. Suggest the customer used the satellite in the S-video and separate video input mode. In his present configuration the customer is loosing all stereo reception, and all high frequency detail over. This corrected the symptom. When operating a different DVD player the symptom is the same. There is no cure to this phenomin from Sony at this time Tech needs to order IC001= T-935-001-61 per bulletin R329R1. After replacement the tech will need to enter the tech menu and select "CRIW" and change it from 15 to 3. Also check the "LBLK" must be 7, "RBLK" must be 7 and "HBSWO" must be 0. At this point save the new data and The tech needs to set the ID codes to the following ID0=25, ID1=19, ID2=47, ID3=0, ID4=27, ID5=3, ID6=0, ID7=0. If these are OK then the tech will need to replace the IC001 with an upgraded version per bulletin 329R1 Original generic # is CXP85640-004S, the new generic # is CXP856P40S-1 part number T-935-001-61 See Bulletin 329R Original CPU CXP85640-005S The new device is CXP85640-006S

006S CPU was replaced and did not correct the symptom.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

teletext 1 and 2 to the "Minus" option this effectively shuts off

Resistor R354 was not soldered in correctly. The resistor is in

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The tech needs to set the ID codes to the following ID0=25, ID1=19, ID2=47, ID3=0, ID4=27, ID5=3, ID6=0, ID7=0. If

KV27V20 AA-2

Sony

KV27V20 AA-2

Sony

CLOSED

CAPTION

CLOSED

CAPTION

No closed caption on premium channels

Sony KV27V20.unit has intermittent symptom of closed caption coming up on screen. Cust claims they cannot turn off the closed caption option.

these are OK then the tech will need to replace the IC001 with an upgraded version per bulletin 329R1 Original generic # is CXP85640-004S, the new generic # is CXP856P40S-1 part number T-935-001-61 Unable to see any problem with circuitry, and ID codes are correct. All appears normal. Setting all CC1 ~ CC4 and

the closes caption feature. Instruct customer to operation od

Sony KV32V15 serial 9013716 AA-2D Unit has horizontal banding of purple and red at top of

KV32V15 AA-2 color banding

Sony

KV27V22 AA-2 CONVERGENCE

Sony

screen. If the color was reduced the banding would disappear. Color bar did not have a normal appearance

KV27V22 serial # 8051260 will not converge the bottom red green or blue horizontal lines

the Color AFC circuitry. It had a .15 ms ripple on it causing a phase shift in the chroma in the first 4 to 5 inches on the picture. Problem was caused by a glue used to secure the surface mounted resistor. The glue prevented a good connection of the resistor to the pad. Cleaning the glue away and resoldering corrected the symptom. Unit has over 6 permaloy magnetic on the CRT bell in the area of the bottom of the yoke. This is not a good sign. It is also a rebuilt CRT. We are not going to place more Permaloy strips on this CRT. It needs replacement.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

hours continuously. It ran fine. But 6 hours after the CRT was

Q512 was shorted. L511 is burned and needs to be

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I never recommend that after replacing these components in the power supply that the set have full line voltage applied to it. The odds are very high the new components will be instantly. Suggested the tech use a variac to do these tests. This power supply should start running at 10 vac as a line

KV32S40 AA-2 dead

Sony

KV32S40 AA-2 dead

Sony

KV32V40 AA-2 dead

Sony

KV32S40 serial 8001469. Unit had the power supply IC601 shorted and open R607. Tech replaced these components and it shorted out again at the instant the television is plugged in.

KV32S40 Unit will run for several days then it will short the horizontal output transistor and destroy the power supply IC601

KV32V40 Unit was originally dead. Q502 was replaced. Now set has a sever over scan of horizontal sweep. Collector of Q512 only 2 volts

changed, along with D504 D503, D502, C511, C513, and L511.

source. The current should never go above 100 ma during a no load test. Max 800 ma during a normal load. When running this power supply at 15 volts the current was surging to over 200 MA. Checking al the loads on the secondary found no obvious short circuits. However when checking the capacitors in the primary we found C610 has internal resistance of 470K, There should be no internal resistance. Replaced C610 and restored normal operation. Suggest that C609, C610, C611, and C612 be automatically replaced This product was brought into the shop where the set was operated with the CRT disconnected for approximately 100

connected the Horizontal output and power supply self destructed again. Unit has defective CRT Suggest the tech replace the CRT After replacement of the components the sweep was still excessive. When using an oscilloscope on the IC351(31) the E/W pin out we found 6 volts DC, and no 60 HZ parabolic wave form. If this E/W output pint was touched to ground through a 270 ohm resistor the picture narrowed up to a an almost normal width. Product had defective IC351.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

were not making contact to the terminal inside the connector.

transistors lasted 10 minutes and in 1 case 1 week.

disconnected It was determined the power supply, deflection,

decided to change the CRT needs to be replaced. CRT fixed

was open. However the device is connected in the circuit like

removing the defective VDR602 allows the set to turn on and

operate correctly. Tech will need to replace T602 and

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Checking the Collector of the Horizontal output transistor the retrace period was running in excess of 20 microseconds not the traditional 11.5 microseconds. Closed inspection was found the deflection yoke leads inside the connector were loose and the crimp for the wire to the horizontal winding

Cleaning the terminal and prepping the connection was necessary because there was evidence they were burned by the voltage drop in the poor connection .

KV32XBR48 AA-2 dead

Sony

KV32XBR48. Originally dead with shorted IC601 converter IC and horizontal output transistor shorted too. The horizontal drive looked odd, but this was not the problem.

KV35S26 AA-2 dead

Sony

KV36FV1 AA-2 DEAD

Sony

KV35S36 serial 9027801 Unit goes dead after 10 minutes after the power supply was repaired.Q601 & Q602 were not running hot they just shorted. They were replace 4 times. Each time the

KV36FV1 serial 9029271. Unit is dead. After talking to customer they explained that they had a power surge caused by a car hitting a power pole.

After running the television for over 1 hour with the CRT

and horizontal deflection were all working. It was further

the unit. The set was completely dead. VDR602 was noticeably

burned up. Cutting this device our of the circuit found that it

a metal oxide varistor. It should measure open since it is in parallel with the A.C. Line. It was discovered that no other shorted components could be found in the primer of the power supply. Main line fuse WAS NOT BLOWN! Checking the raw AC voltage on the AC Line filters T601, and T602 find that we have no AC voltage on the output of T602 but present on the input side. Isolating the open coil and

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

and the Flyback, but when power was reapplied the

ground caused by a shorted protect diode in the secondary of

explained that they had a power surge caused by a

was open. However the device is connected in the circuit like

removing the defective VDR602 allows the set to turn on and

operate correctly. Tech will need to replace T602 and

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Checking the Collector of the Horizontal output transistor the retrace period was running in excess of 20 microseconds not

KV32XBR48 AA-2 Dead

Sony

KV27V65 AA-2 Dead

Sony

KV36FV1 AA-2 Dead

Sony

Originally dead with shorted IC601 converter IC and horizontal output transistor shorted too.

Unit is Dead Tech replaced the IC601 and R607

set destroyed the power supply again.

Unit is dead. After talking to customer they

car hitting a power pole.

the traditional 11.5 microseconds. Closer inspection found the deflection yoke leads inside the connector were loose and the crimp for the wire to the horizontal winding were not making contact to the terminal inside the connector. Unit had a blown IC601 and R607. Tech had failed to check the condition of the Power supply output for the 135 vdc source.. It was discovered there was a 1.2 ohm short to

the power supply. I cannot stress enough the tech needs to check all loads on the secondary of the power supply for shorts, and use a variac to start up all power supplies. All parts changed earlier are destroyed and need to be replaced The set was completely dead. VDR602 was noticeably burned up. Cutting this device our of the circuit found that it

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

This is caused by the 10 megabit throughput limit of the DSS

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video compression format MPEG3. In order for the compression to work correctly the Digitization process only updates the data that is changing. Background data is not updated as regularly as the foreground data. Hence when everything must get updated. But the MAX Data throughput is finite. the entire video waveform will not be accurately represented, instead the smaller detailed portions of the picture will begin to have larger pixels so not to exceed the Max Data. This is why to the eye the set appears to loose resolution or picture detail. This is normal. The set has a dynamic focus error. Tech needs to see if the Dynamic focus circuitry is running correctly. Also before any hardware is tested the parameters of HAMP and DCSF should be adjusted to see if the dynamic focus is effected. When adjusting these parameters the values get the best focus when each is mixed out to 60. The focus becomes poor 2 inches from the left side of the screen and 5 inches from the right side of the screen.

Tech needs to replace the EPROM……. I002 corrected the problem

This television is operating within specifications. The geometry errors should not deviate more than 1/8 of an inch across the length of the Horizontal line. Horizontal tilt can be no more than 1/8 of an inch. This television beats this measurements. There is nothing I can recommend to the tech to do to improve on the geometry of this receiver.

KV36FV1 AA-2 FOCUS

Sony

KV36FV1 AA-2 focus

Sony

KV27S10 AA-2 GEOMETRY

Sony

KV27V65 AA-2 GEOMETRY

Sony

KV36FV1 Customer is running the television on a DSS satellite system. Customer claims the set looses focus in the picture when there is a lot of detailed movement.

KV36FV1 serial 9046442 Unit has poor focus on left and right side of picture

KV27S10 serial 723009 Unit has symptom every time the set looses power the geometry memory is lost VPOS, VSIZ, HSIZ. PAMP drop at least 10 points each. When resetting these values and writing them to memory the they will be erased as soon as power is removed KV27V65 serial 8027393 Customer complaint is a slight geometry error or tilt in the lower right hand corner of the screen. It causes a symptom of horizontal lines that are not perfectly straight. In this case the lines are elevated by at width of 2 horizontal lines.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

not have a pix tilt circuit or rotation on the CRT bell

sweep is reduced by 10 to 15% on the left side and

Monitoring the voltage at the Collector of @Q512 the voltage

running in excess of -7 volts. The voltage on this transistor in

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Sony

Son

SONY

Sony

KV32S45 AA-2 GEOMETRY

KV36FV1 AA-2 GEOMETRY

KV27S25 AA-2 HIGH VOLTAGE

KV35V36 AA-2 horizontal

KV36FV1 AA-2 horizontal

KV32S45 serial 8102913 picture is rotated clockwise by 1/4 inch. Tech claims this tube does

KV36FV1 serial 9032273 Tech needs yoke modification for the yoke upgrade.

Unit has no high voltage. LED in front is flashing on and off after power up.

Unit has a insufficient horizontal sweep. The

2 ~ 5% on the right.

Unit has a severe over scan condition for horizontal sweep. Tech did not measure any voltages in the pin amp circuit.

Tech needs to break the bonding of the yoke ant reposition the yoke.

Gave tech bulletin 387R2 relating to the shoulder roll off There does not seem to be any horizontal drive to the

Horizontal drive transistor. Defeating the Horizontal output by removing the collector connection still will not allow Horizontal drive to appear at IC351(37). This pin is sitting at nearly 8.5 volts, not the 3 volts it is supposed to be. Also IC351(38) the HOFF/AFCPIN is at 3.3 volts which is normal. Unit has a bad IC351 CXA2025AS When going into the tech set up parameters and adjusting the HSIZ value the sweep will change to full sweep.

will vary from 27 volts HSIZ set to 22. When HSIZ is set to 48 Q512(C) will drop to 16 volts. The set will have full sweep but it has a slight foldover condition on the right side of picture. It is recommended the tech replace the retrace capacitors C511, & C513 and the Yokes" capacitors C518, &

Tech needs to check on L511, Q512, C513, C511, D502 & D504. One or more of these are shorted.

Measuring the collector of Q512 tech finds the voltage

Unit has severe over scan of horizontal sweep.

KV32S40 AA-2 horizontal

Sony

Tech replaced Q512 Shorted and Q511 open all elements.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

running in excess of -7 volts. The voltage on this transistor in

Monitoring the voltage at the Collector of @Q512 the voltage

BRAND

KV27S20 AA-2 horizontal lines

Sony

KV32S40 AA-2 horizontal sweep

Sony

KV35V35 AA-2

Sony

KV36FV1 AA-2

Sony

KV35V75 AA-2

Sony

HORIZONTAL

SWEEP

Sony KV27S20. Black banding across the screen. Symptom does not appear when playing a tape.

KV32S40 ser 8053998 Unit has sever over scan of horizontal sweep. Tech replaced Q512 Shorted and Q511 open all elements.

KV35V36 Product has a insufficient horizontal sweep. The sweep is reduced by 10 to 15% on the left side and 2 ~ 5% on the right.

KV36FV1 serial 9023663 Unit has a sever over scan condition for horizontal sweep. Tech did not measure any voltages in the pin amp circuit Unit has shorted L511 and Q512. Tech replaced these items and they burn out again

Gave tech modification on the KV27S20 to replace C1267 from a .047 to a .47 tantalum capacitor.

Measuring the collector of Q512 tech finds the voltage

inconsistent with the symptom on the screen of a narrow raster that is hourglass shaped. L511 and Q512 are burning up. Suggest the tech replace the following additional components D502, D503, D504, C511, and C513. When going into the tech set up parameters and adjusting the HSIZ value the sweep will change to full sweep.

Tech needs to check on L511, Q512, C513, C511, D502 & D504. One or more of these are shorted.

Tech needs to replace D503,D502, D504 and C511, C512 the retrace capacitor along wit the other components.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

The main concern is if the pulses are leaving the main board,

ID6=1, ID7=0 . Write these in memory, then press "8" "Enter"

IN" & "C OUT" on connector CN501(1 & 5). We have chroma

BRAND

I had tech short the CN1761(1, 2, 3, & 6) together. This should give a perfect black and white picture. But when this was shorted we had a black and white picture but the picture

KV32S26 Unit has a brighter than normal picture.

KV32S26 AA-2 Int Raster

Sony

KV27V22 AA-2 intermittent snow

Sony

KV36FV75 AA-2 NO AUDIO

Sony

KV27S15 AA-2 NO CHROMA

Sony

KV32XBR48 AA-2 no chroma PIP Sony KV32XBR48. No chroma in PIP X3304 0n PX board not soldered (PIP)

Son

When G2 is lowered the picture blinks on an off. Tech replaced the flyback and jungle chip with no changes in symptom

KV27V25 Unit has intermittent snow in the picture zThe tuner pn# 8-598-340-20 was replaced. Now the set has a symptom where the remote control causes the set to enter the video input mode when the channel is selected. Also the set will enter the video input mode if the and another brand of remote that operates a stereo receiver will put the set into the video input mode.

KV36FV75. Unit has no audio. But also has no OSD stating "Main" or "Stereo" Main picture is fine.

KV27S15 Unit has no Chroma. Black & white is OK. Also no Chorma while using the PIP. Sound and On Screen Display OK. Initializing EPROM does not change the effect.

still was flashing. Since the jungle IC was already replaced it was assumed the IK pulses were OK from the jungle chip.

and if the pulses are getting back to pin 27. This flashing condition indicates the IK feedback pulses are insufficient some where in this path. Further static check indicated a shorted zener diode D1792 in the IK buffer path on the CRT

I instructed the tech to enter the tech mode and set the ID codes...ID0=25, ID1=23, ID2=47, ID3=0, ID4=27,ID5=135,

to initialize. This corrected the problem.

ID codes are 0=25, 1=55, 2=47 3= 0 , 4= 155, 5 =143, 6 =6, 7=0 which is correct. Initializing the EEPOM did not correct the trouble. Tech will be returning with a Manual Scoping the first place where the chroma signal can be readily available is on the PIP module. They are marked "C

going into the PIP board but nothing coming out. Jumping these pins together with a 1 mfd capacitor caused the color to return, as long as the capacitor was in place. Unit has bad

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

remove the horizontal output transistor and try starting up the

The horizontal driver has tremendous amount of ringing on it.

BRAND

KV27S25 serial 811908. Unit has no High voltage. LED in front is flashing on and off after power up. There does not seem to be any horizontal drive to the Horizontal drive transistor. Defeating the

KV27S25 AA-2

SONY

KV32S25 AA-2 No Highvoltage

Sony

KV32V25 AA-2 No Highvoltage

Sony

NO HIGH

VOLTAGE

Horizontal output by removing the collector connection still will not allow Horizontal drive to appear at IC351(37). This pin is sitting at nearly

8.5 volts, not the 3 volts it is supposed to be. Also IC351(38) the HOFF/AFCPIN is at 3.3 volts which is normal

KV32S25 Unit will not develop high voltage. When the set is turned on no high voltage appears. The set has sound and has a flashing light on the front indicating the set is still in a stand by mode waiting for IK pulse feed back acknowledgement from the jungle IC

KV32V25 serial # 7014651. Unit has no high voltage.

Looks like the tech has a bad IC351 CXA2025AS. A second Jungle IC corrected the problem.

When monitoring the Horizontal output collector we found the 140 dropped slightly at turn on. But the Horizontal driver Q501(C) dropped to 85 and back up to 140. I had the tech to

Does not change if we remove horizontal output transistor. The transistor has drive has 7 distinct pulses on the base that go above and below the cut off point of the transistor. These seven pulses are 1 microsecond in duration and are grouped in clusters after where the horizontal drive pulses are supposed to be. If allowed to operate for more than a minute the horizontal driver transistor Q502 will short C to E. The product has a bad jungle IC301

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

increased the set has a partial raster but brighter at

BRAND

I had tech check the must haves. The only thing that was not present was Heater voltage. I had the tech remove the socket and measure the total resistance of the filament

KV26V36 AA-2 NO RASTER

Sony

KV27S20 AA-2 No Raster

Sony

KV32S25 AA-2 NO RASTER

Sony

KV32S65 AA-2 No raster

Sony

KV26V36 Unit has no raster. Further checking we found the set had High voltage and vertical sweep. Just no filaments.

KV27S20. Unit has no raster. Tech had replaced CRT but the symptom was not corrected Power light still flashing indicating the unit is in the stand by mode KV32S25 Has no Raster. When the G2 is

the top of the screen then the bottom. Measuring across the vertical yoke windings we find there is a voltage of approximately 8 volts. These is sound and channels can be selected.

KV32S65 serial 8014809. Unit has no Raster. Sound O.K.. LED on front panel flashing. It also does have high voltage.

source by measuring the H1 & H2 terminal pins on the "C" board. It was open. H1 & H2 at the flyback were less than 1 ohm. Checking CN503 found the black wire was loose and fell out of the connector when unplugged from the main board. Connector wire would stay in place if reseated. Pushing connector back in place corrected the trouble.

Open trace on the CRT driver board causing the IK pulses not to be returned to CN1761(6) not to be fed back into the jungle chip.

The symptom indicates the set has a vertical deflection failure but more precisely a power supply failure for the _15 volts source. The tech either has a open R536 = .47 ohm @ or open D530. .

I had tech measure the G2 voltage at the CRT. It was only 54 volts. With the socket disconnected the G2 voltage returns to 410 volts. Unit has defective CRT. CRT must be replaced A80JYV52X

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

increased the unit has a non uniform bright screen,

volts (where it should be about 3 volts), and Q561(B) was 0.6

bus. Measuring the SCL & SDA I found the SCL was running

BRAND

Cure: Checking the +12 and -12 volts at IC561(2&4) respectively are normal. Monitoring Q561( C) it was only 1.7

KV32V40 AA-2 NO RASTER

Sony

KV20VM20 AA-2 No Raster

Sony

KV32S22 AA-2 no raster no sound

Sony

KV32V25 AA-2 no video

Sony

KV32V40 Unit has no raster. When G2 is

brighter at the top of the screen. The television has sound.

Sony KV20VM20 Unit has no raster but sound and OSD are O.K.

KV32 Unit has a horizontal line across center of the screen. The line is elevated above center by 2 inches. There is no sound too. No LED'S in front are blinking

KV32V25 Unit has no video when using the front input jacks. All other inputs are O.K.

volts( where it should be "0" volts).. The voltage at Q562(B) is always low (0.11volts). By pulling the base Q562(B) high, with a DMM in the diode check mode, we are able to get full vertical sweep. It appears there is no, or poor pulse coupling between the FB pulse U561(3) and Q562(B). A strong pulse is present at U561(3) when grounding Q561(B). No pulse at C564(+) Tech needs to replace C564 1mfd @ 50 volts was Unit did not have any Horizontal blanker pulse to pin 19 of the Jungle IC. Shorted Z1403 Unit had 60 Peak to Peak at the "FP" of flyback. At cathode of Z1403 should be 7 volts peak to peak. Replace diode and restored normal operation. This symptom is inductive of a problem in the data or clock

at 1 volt peak to peak and the SDA was at 4.97 volts PP. I had the tech start pulling all of the stand up boards out of the mother board to isolate the SDA & SCL lines. After the main tuner was removed the SCL returned to normal. Replacing the main tuner corrected the trouble. When tracing the video signal from the front input connector we find good video on the connector but less than an inch away from the connector is a coupling capacitor C2233. Apparently the trace was torn after the video input jack entered the board. Placing a hard jumper wire from the Jack to the C2233(-) corrected the fault.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

This television had sever noise resembling black &

waves that are random in size and shapes. This indicated the

KV32XBR60 Unit has narrow picture and hourglass

I asked the tech go through the ID codes for this unit and see

BRAND

Checking the video at the input of the comb filter IC3504(2) on the rear I/O circuit board. The video is perfect. However the Luminance out IC3504(9)is broken into pseudo square

KV36FS12 AA-2 NoiseY video

Sony

KV27S22 AA-2

Sony

KV32XBR50 AA-2 PINCUSHION

Sony

KV35V36 AA-2 PIP

Sony

Picture

interference

white random lines of varying lengths. No discernable picture. Noise is in the tuner and video and modes.

Sony KV27S22. Serial 8126359 the sound is increased to a 60 to 80% level the CRT will exhibit an effect on the sides resembling a "water fall" effect. It disappears if the audio is muted or if the audio level is dropped down to a lower level.

distortion

KV35V36 Unit has no control over PIP channels. The PIP only displays the main channel. It will not change on its own

Combfilter was not working. Further checking discovered the FSC IC3504(37), which is a 3.58mhz carrier was reduced to a 60hx pulses. At CN271(15) we found the FSC signal normal. Problem was an open trace between the connector CN274(15) and C3578 located inside the combfilter shield located at coordinates C2 on the UY board. This symptom is called 'acoustical vibration." It is caused by the sound energy from the speakers coupling acoustically through the CRT frame to the Aperture grille inside the CRT. The vibration causes the aperture grille assembly in the tube to vibrate. Suggested customer use external speakers

Q505 shorted and R571 open

if they were the correct value. ID3was 10 ID5 was143 & ID6was 0. These were wrong. The ID codes are supposed to be from ID0 ~ ID7 = 25, 55, 47, 10, 155, 6, 0. After resetting the ID codes the set operated the PIP correctly but still needed to set the PIP chroma phase

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

the first Sony for this trouble. But the symptom was

the Main B+ from the main SMPS. What is turned off is the 9

enclosed oak cabinet (no doors) in a bedroom with tile floors.

Since these pulses are at the top portion of the tube or on the

The "Q" distance has been severely compromised because

No magnets appear to have moved into a position that would

BRAND

This noise is normal due to the fact the set does not shut off

KV32S40 8096389 Customer complaint is when

KV32S40 AA-2 Power supply chirp

Sony

KV35S40 AA-2 preglow

Sony

KV27S22 AA-2 PURITY

Sony

KV27S45 AA-2 purity

Sony

KV36V15 AA-2 PURITY

Sony

the set is turned off there is a slight noise " zip" noise from the flyback transformer that lasts for about 2/10 of a second. The customer exchanged

also in this TV too. The customer tried two of the same models, and claimed they did not here this noise when they heard it at the store.

KV35S40 Unit has preglow at the instant the television is turned on. ?The preglow shows in the lower left and right hand corner and stays until the raster appears.

KV27S22 serial 8091271. After the unit is turned on and the picture is on there is evidence the degausser is still running for about 5 seconds after the picture comes on. There seems to be a 18 second delay before the Degaussing relay unlatches. There is only a 10 second delay for the picture to appear after power up. KV27S45 Serial 8056889 Unit has sever purity error in the lower right hand corner of the picture KV36FV15 serial # 9026985 Unit has in the lower left corner the tube has a sever convergence and purity error.

volt source from IC642 in the "G" board. As the voltage decays the there may be a slight phase shift in the horizontal drive signal as soon as the 9 volts begins to drop. The reason the customer could not hear this symptom in a store is due to its acoustics. The store is far noisier and carpeted walls and floors. In the customers home the set sits in an

One can here a pin drop in this room. This set is operating This phenomena is normal and is caused by the IK pulses that are produced at the instant of turn on. Even thought the cathodes are not completely warmed up there will be a slight amount of beam current produced by just the IK pulses.

curved funnel portion of the CRT this symptom is common and is not considered a defect in the CRT.

I don’t know what the latch time is for the Degauser relay. I thought that it was a bit excessive. But even though the latch time is excessive the posistor THP601 should increase high enough in resistance to drop the degaussed current to minimum levels. The trouble was corrected by replacing the THP601

the aperture grill has shifted. Unit will need a replacement

this effect. It cannot be adjusted out. It has been determined the CRT needs replacement.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

When turned on the raster has a dim glow, with the

a uniform brightness where the top of the screen was brighter

The tech replaced the transformer now the unit has

source was not running. I had the tech check R553 a .47 ohm

BRAND

KV27V22 Serial # 8049735 Unit has red screen

KV27V22 AA-2 RASTER

Sony

with then no raster G2 voltage drops to 3 volts. Tapping on neck of tube causes the picture to return to normal. Tech could not duplicate the trouble again. After this the set ran fine.

CRT.. Due to this symptom and the intermittent nature of the trouble I suggest that we replace the CRT A68KZJ50X

When raising the G2 voltage it was discovered the CRT had

KV32S20 AA-2 raster

Sony

KV32V25 AA-2 raster

Sony

KV27S22 AA-2 retrace

Sony

KV32S22 AA-2 retrace

Sony

KV32V25 AA-2 retrace

Sony

top brighter than the bottom. The Timer LED in front flashes. Unit has high voltage and sound.

Unit had an arcing inside the flyback transformer.

a bright band at the top of the screen. The tech replaced the jungle IC without affecting the symptom

Unit goes to a bright blue screen with retrace lines then shuts down.

Unit has bright screen with retrace lines then it will shut down. Measuring the G2 supply finds nearly 420 vdc but the CRT cathodes are running only 55 volts. Disconnecting the CRT socket causes the cathode source voltage to rise over 180 volts.

Unit has bright screen with retrace lines then shuts down.

than the rest in the CRT. It was also discovered the -15 was missing. Tech needs to look at D530 and R537 a 0.47 ohm resistor. Tech noticed the +15 volt source was lower than expected. It was only 10 volts. It is not unusual. The voltage is normally 12 volts. What the tech missed is the -15. This voltage must be there in order for the set to have any vertical sweep. Resistor for the -15 volt source from the Flyback was open. D530 and R537 a 0.47 ohm resistor. Unit has a defective CRT. When unit is able to turn back on again the set will sometimes be in the video input mode.

It appears the CRT is loading down the cathode voltages. Unit will need a replacement CRT.

Measuring the 200 volt B+ at the CRT socket we found the voltage to be under 126 vdc. This indicated the 200 volt

1/2 watt resistor and it was open. Replaced the resistor and the set operated normally

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

When the set shuts down. All Cathodes of the CRT are only

source was not running. I had the tech check R553 a .47 ohm

Sony KV27S25 Bright screen with retrace then unit

BRAND

Unit has the 200 vdc cathode source voltage measures 179 vdc but when measuring on the cathode directly the voltage is very low 22 vdc. Disconnecting the socket causes the voltage to rise back to 198 vdc. Unit has a defective CRT. Disconnecting the CRT and measuring the RK, BK,& GK on the CRT socket we found all of them running at 187 vdc. But after connecting the socket again to the CRT they immediately dropped to 33 volts. Unit will need a

Tech will need to replace the CRT. 8-733-741-05

Monitoring the "C" board Blue cathode terminal the tech found the voltage was less than 70 volts when connected to the CRT. Removing the module from the CRT the voltage raises the voltage to 189 vdc at KB. CRT... Unit will need a replacement CRT

KV32S26 AA-2 retrace

Sony

KV32S22 AA-2 retrace lines

Sony

KV32S22 AA-2 RETRACE LINES

Sony

KV32S22 AA-2 RETRACE LINES

Sony

Unit has bright screen with retrace lines. The flyback was changed but did not correct the symptom.

KV32S22 serial # Unit has bright screen with retrace lines then it will shut down.

KV32S22 serial 8011789. Unit has intense blue raster with retrace lines then shuts down. Tapping on neck of tube aggravates the symptom

KV32S22 serial 8046606 Blue screen with retrace lines then shuts down.

KV32S26 AA-2 RETRACE LINES

Sony

KV32S26 AA-2 retrace lines KV32S26. Unit has bright screen with retrace lines

Sony

KV32V25 AA-2 retrace lines

Sony

KV27S25 AA-2 retrace lines

Sony

KV32S26 Unit will go to as bright screen with retrace lines then shut down.

KV32V25 serial 7019547. Unit has bright screen with retrace lines then shuts down.

shuts down

66 volts. With the CRT disconnected from the module the RK, BK,& GK will increase to 202 vdc. . Unit will need a replacement CRT Unit has the 200 vdc cathode source voltage measures 179 vdc but when measuring on the cathode directly the voltage is very low 22 vdc. Disconnecting the socket causes the voltage to rise back to 198 vdc. Unit has a defective CRT. Measuring the 200 volt B+ at the CRT socket we found the voltage to be under 126 vdc. This indicated the 200 volt

1/2 watt resistor and it was open. Replaced the resistor and the set operated normally I had tech measure the 200vdc supply line and it measured only 78 volts. Unit had defective capacitor in the 200 vdc source.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

Sony KV27V20 has retrace lines no video. Unit will

Symptom only shows up in the tuner mode. VCR in

remove the horizontal output transistor and try starting up the

BRAND

KV27V40 AA-2 retrace lines

Sony

KV32S40 AA-2 shading

Sony

KV32S25 AA-2 shut down

Sony

KV32S65 AA-2 shut down

Sony

shut down if left on after the filaments warm up.

KV32S40 Brightness shading in brighter on the right side than it is on the left side of the screen.

video input mode is fine. Unit has CATV box "Scientific Atlantic model 8580338".

KV32S65 intermittently the set will turn off. This process takes about 30 ~ 60 minutes. The set can be turned back on again if the power button is pressed twice. Sometimes the set comes on in the Video 1 input mode when it was in the tuner mode before it shut down.

Missing 200 volt source from flyback to CRT driver board. Trace broken at CN1781

After checking out the box and moving the box it was discovered the movement of the box effected the screen brightness. The box was mounted directly beneath the television. If the box was moved to the far left the symptom disappeared. If centered below the TV the symptom was evident. Solution was to move the CATV box away from the television and remove any electromagnetic interference caused by the television. When monitoring the Horizontal output collector we found the 140 dropped slightly at turn on. But the Horizontal driver Q501(C) dropped to 85 and back up to 140. I had the tech to

set again. After power up measure the Q501(C) horizontal driver transistor. It should be about 85 volts and stayed. This told us we were looking at a shutdown symptom. Checking all secondaries we found nothing shorted. Replaced flyback which corrected trouble. This could be caused by the CRT. Suggest the tech disconnect the CRT socket an run the set with the tube disconnected and see if the set shuts down with the CRT disconnected. With the tube disconnected the chassis ran 3 days without shutting down. A CRT was substituted and the problem never showed up on the other CRT. Replaced the CRT and it corrected the symptom.

MODEL Chassis KEYWORD SYMPTOM CURE

TSS Logs for Sony Television Products

determine any chassis fault the problem must be due to CRT

volt source. It was suggested to replace D530. This corrected

back up sometimes the set will be in the "VIDEO 1"

BRAND

KV35V36 AA-2 Shut down

Sony

KV24FV10 AA-2 shutdown

Sony

KV32S22 AA-2 shutdown

Sony

KV32S40 AA-2 shutdown

Sony

KV32S65 AA-2 shutdown

Sony

KV35V35 AA-2 SHUTDOWN

Sony

KV32XBR48 AA-2 shuts down

Sony

KV35V36 serial 9024090 Unit has an intermittent shut down that only occurs after two or three days. When shut down occurs, the LED in front is Blinking and raster disappears but sound is OK. When flexing, heating, or freezing the main circuit board the problem can never be recreated.

KV24FV10 Unit will shut down immediately after turn on. But the unit will stay on if the service mode is entered.. KV32S22 serial # 8055057. Unit will run fine for 15 ~ 30 minutes with sporadic arcing then it will shut down with a bright green flash

KV32S40 Unit will turn on and immediately shut down. It does get high voltage briefly. Appears to be entering over current shutdown. Waveform at the collector of the horizontal output appears normal. Horizontal drive is normal if the horizontal output transistor is removed.

KV32S65 Unit goes into shut down. Will allow HV to com up but goes into immediate shut down afterwards. At no time did we ever have Data on 9 & 10 of the Jungle IC KV35V35 serial 9011978 Unit flashes bright green with retrace lines then shuts down. When powered

mode. KV32XBR48 Unit get a bright red screen then looses horizontal sweep then shuts down. Unit can be turned on again right away

Tech needs to order the CRT. Since we are not able to confirm any trouble with chassis The CRT is nearly out of Warranty. It is recommended that since we are unable to

arc over. Note after 4 weeks of normal operation the CRT seems to have corrected the symptom.

When monitoring the VP at IC001(18) only 1 volt peak to peak was measured. Floating IC001(18) allowed the voltage to return to 5 volt PP. Replacing the IC001 corrected the

Unit needs replacement CRT 8-733-741-05.

Severing the 135 B+ line and placing a 40 watt bulb in series with the supply were are still getting the same symptom but the Light illuminates brightly. We began to disconnect the flyback loads D530, D531. After disconnecting these we found the set will run with D530 disconnected . Checking this device it passes the static check. This component is the -15

Open coil that supplied the B+ to the audio controller and buffer chips. This loss in voltage caused the audio processor chip to load down the Data and Clock lines and cause this symptom.

?Unit has a defective CRT. A89LJT80X

Tech needs to tap on neck of CRT and see if the symptom is aggravated by this action. After tech got to the house an tapped on CRT it was founf that the Tube was causing the

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