Sony Repair Tips
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Results: 20100
Results: 20100
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| 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 "" | Muller |
| SONY |
KP46S26
RA1 |
Dead | Kp46s26 serial 9003745. the set is completely dead | All three tubes are leaking. coolant leaking on ""e"" board. "" | Muller |
| SONY |
KP46S15
RA1 |
Dead | Kp46s15. unit has an over heated stand by transformer. the 20 volt power supply 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 tsound is a sever load on the output of ic001 the 5 volt standby on the ""m"" board wsound the 12 volt stand by enters on connector cn053 pin 1 then to the ic001 a post 5 volt regulator. tsound 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 "" | Muller |
| 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. | Muller |
| 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 "" | Muller |
| 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 sμFficiently cleaned. e module and all 3 crt's must be replaced. "" | Muller |
| SONY |
KP41T15
RA1 |
Dead | Kp41t15. unit has coolant leak which destroyed the ""e"" board. "" | Unit will need a replacement ""e"" board. "" | Muller |
| 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 | Muller |
| 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 ic1601around the current limiting resistors. board number is a-1346-296-a and is no longer available from sony world parts center | Muller |
| 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 "" | Muller |
| 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. | Muller |
| 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. | Muller |
| 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. tsound 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 | Muller |
| 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 "" | Muller |
| SONY |
KP53S25
RA1 |
Crt | Kp53s25 serial 924413 unit has leaking blue crt | Ok to order the e bard and crt. | Muller |
| 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 | Muller |
| 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. "" | Muller |
| 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 | Muller |
| 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/ | Muller |
| 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. | Muller |