Panasonic Repair Tips
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Results: 2911
Results: 2911
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PANASONIC |
TC-20A12
|
The device turned on with audio and a flash appeared on the screen, then turned off immediately. I replaced the vertical IC, flay-back and some electrolytic capacitors on these two circuits and nothing. | The defect was in the 140v protection circuit, because when opening the q520 collector track, the TV started working normally again (it is SMD and is located below the board). | ||
| PANASONIC |
DVD-RV31
|
Does not open drawer, or opens slowly | Shorted motor sled | Bruske | |
| PANASONIC |
SA-AK250
|
Crazy display and won't turn on | This sound had a crazy display and it wouldn't turn on. After doing a visual check on the volume board, I saw that there were some latches on the board, so I soldered these latches, the display stopped giving those crazy blinks, but now it has the keys. all functions changed, e.g. when pressing the tap key it is the FM that is activated and so on, I went back to the volume plate and realized that it was all dirty with a crust looking like dried paste, so I gave it a good cleaning on the board removing all this crust and then the sound started working properly again. | ||
| PANASONIC |
TX25MD2E
EURO2L |
Without video, but with sound | F851,t501 | F851 of, causes t501 to be shorted, see the value of r507 (3.3r) | joaquim cunha |
| PANASONIC |
TC14A7
|
A ticking noise | Horizontal output shorted...! Turning off by itself with barely any contact and it was ok. | ||
| PANASONIC |
TC14C20
MX3R |
TV doesn't turn on, only the LED lights up, but there is no high voltage | D511 with leak | gisllene | |
| PANASONIC |
TC-20A7
|
No contrast. The contrast function in the menu works but does not affect the image. | Check the resistors: r538(56k), r539(68k), r522(22k), they are on line pin 20 of ic601. | In my case it was the r539, it was giving 21k instead of 68k (rust) | Manoel (Noca) |
| PANASONIC |
TC21FX30L
|
It turns on and then turns off, the image does not even appear, only if you insist that the filament heats the tube and then the image appears for a second. | D403 with poor contact or open vertical smd. | Bruske | |
| PANASONIC |
TC14A10
|
Image disabled horizontally and vertically closed power supply oscillating | Capacitor c 817 of 473nf dry | Replace with 1μF 400v | ELETRONICA COLARES |
| PANASONIC |
TC20A12
|
After 1 minute it turns off and turns on again | D1105 shorted (dz7.5v) | Note: heating IC 1202 and IC 851 | vagnernardes |
| PANASONIC |
TC29Z99L
GP41 |
556 diode shorted out, replaced, the TV started working again, but with excess width and cushion effect. There's no point in trying to fix it using service mode. (This was really hard to solve, it took me 3 weeks researching!) | The smd transistor q701 that makes the pincushion amplifier, even when measuring normally, was bad and the resistor at its gate terminal was altered (the transistor is 2sk2099 and the r is 64 r) | alexsts | |
| PANASONIC |
TC20RM10L
|
Horizontal shaking and losing width | Changed resistor r502 | genilson | |
| TV PANASONIC |
29KL25
|
This TV arrived at the workshop with normal sound but with a horizontal scratch | Checking the circuit I found cap c 563 330k 250v as I didn't find the same value I associated 4 of 100k | And defect resolved. | BF.COLATINO |
| PANASONIC |
TV20A10
|
When turned on, the protection is activated. There is no sound and no image. | Diode d402 shorted at the vertical output. | Rubens | |
| TV PANASONIC |
14RM15L
|
This TV was completely stopped and when I opened it and turned it on, I noticed that the r-850 resistor was getting very hot, causing the q-850 to short out, but when I replaced it, everything remained the same, not even the std-by LED lit up. | All vertical voltages are present except pin 5 which has 0v and should have 28v and pin 6 which has 15v and according to the service manual it should have 29v. | Solved, it was the micro | BF.COLATINO |
| TV PANASONIC |
TC20C20
|
This TV has no color, I checked capacitors near the do-it-all, resistors and everything, and it didn't solve it | Solved, it was the tda4665. | BF.COLATNO | |
| TV PANASONIC |
14RM151
|
I received this TV when it was stopped, and when I turned it on I noticed that the r-850 resistor was getting very hot. | The cause was the transistor q-850 shorted, I replaced this tr and even so the device still stopped, I noticed that in the lamp in series the device showed consumption and I found the zener d-883 shorted, after replacing the device the LED turned on std-by and it started to work on and off and with the vertical closed, I tested the entire vertical circuit and even replaced the vertical output but the defect persisted.. | Resolved, it was the micro. | BF.COLATNO |
| PANASONIC |
TC 20C6
|
TV oscillates and returns to stand by. activates protection | Drop q503 . if atv works replace d528 | D528 shorted | samuel leite |
| TV PANASONIC |
TC14RM15L
|
This TV works all blurred as if it were the socket and turns off. | Defective an15525 vertical output. | Replaced and resolved. | BF.COLATNO |
| TV PANASONIC |
29KL04.
|
Q753 shorted from emitter to collector. r768 open, 10r 2w. | Defect in correcting the cushion effect. pin cushion circuit. (solved) | BF.COLATINO |