Author Topic: panasonic txp50x50b - SOLVED (Read 15824 times)

sinclairtv · « **on:** April 19, 2014,13:33:30 »

This set wont turn on after being unplugged. Customer says that if its left for a long while, eventually the red light will come on then set can be turned on. According to google its a common enough fault but no solution. Caps look ok and putting a hairdryer on pwr board made no difference. Thanks

EDIT Jordans solution worked. IC from CHS

Mulja tv repair portal · « **on:** April 19, 2014,13:33:30 »

jordan · « **Reply #1 on:** April 19, 2014,14:33:52 »

Chassis GPF15DE
Change IC U-203 (TZS9EK097) on the foil side of the PSU board

sinclairtv · « **Reply #2 on:** April 19, 2014,14:49:55 »

Cheers Jordan, i will get one n try that

Mulja tv repair portal · « **Reply #2 on:** April 19, 2014,14:49:55 »

jordan · « **Reply #3 on:** April 19, 2014,14:56:58 »

http://sparedparts.com/parts/details/panasonic-tczaa6755u-ic-tzs9ek097-kit

papisco · « **Reply #4 on:** April 30, 2014,20:30:36 »

Hi, I have the same set that came in today, customer said it was disconnected from the wall socket but when plugged back in there was no standby light, the set was dead, he left it for a day and the same, I checked the power supply board but all fuses are good, caps good and the rectifier sc output good, could the same ic u203 cause this fault.
Thank you

fix2003 · « **Reply #5 on:** May 01, 2014,03:18:28 »

maybe u203 also check ZD316 (BZV55-C20)
for s/c

Mulja tv repair portal · « **Reply #5 on:** May 01, 2014,03:18:28 »

papisco · « **Reply #6 on:** May 01, 2014,06:31:11 »

Thank you I will do that and give you you the result

downunder · « **Reply #7 on:** May 01, 2014,07:05:34 »

IC part number FAN6755UWMY.

papisco · « **Reply #8 on:** May 02, 2014,08:42:43 »

Hi Downunder thank you for the ic number, but should I change this ic alone or together with the other parts u203 and the ZD, or do you think this ic will do the job.
thank you

papisco · « **Reply #9 on:** May 02, 2014,09:21:12 »

Hi downunder just seen that the number is for ic u203.
thanks

downunder · « **Reply #10 on:** May 02, 2014,16:35:23 »

service bulletin for your perusal

downunder · « **Reply #11 on:** May 02, 2014,16:40:33 »

and this one

papisco · « **Reply #12 on:** May 03, 2014,07:04:41 »

Thank you again mate, I have put in an order for the ic now waiting to get it, I cleaned the board thoroughly and re flowed it with a heat gun, and when I tried it , it came on standby, I pressed the power button, i heard a Tak like sound and the light turned green, but no screen, from there on when I plug it the led goes green straight, no red light, and blinks about 3 times and stays green, but the screen does not come on.
I have checked the board and seen no burnt or leaked caps. any more sugesrions please.
thank you

downunder · « **Reply #13 on:** May 03, 2014,23:21:55 »

In all cases on Panasonics, where the tv stays on with the green LED but no pix is produced, it's always been the A-Board......OUCH.

Mulja tv repair portal · « **Reply #13 on:** May 03, 2014,23:21:55 »

Mulja tv repair portal

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