Philips chassis L01.1A - shut down after while | |
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| imran khan 12/02/2013 20:32 |
TV Philips 25PT5016/56 chassis L01.1A.
TV runs with 5 to 10 sec and goes shutdown. (No L.E.D indication and goes off) The processor use (TDA95xx) I saw other posts in this forum but still did not found any good solution regarding the above chassis. http://monitor.espec.ws/section1/topic111372.html I check transistors 7443, 7450, 7441 with no help. When i chanage programs up and down sets works fine in this condition. Screen G2 adjustment was made with no success. |
| imran khan 13/02/2013 01:22 |
Телевизор Philips 25PT5016/56,
шасси L01.1A.TV работает с 5 до 10 секунд и идет отключение. (Нет Светодиодная индикация и уходит) использование процессора (TDA95xx) я видел другие сообщения в этом форуме, но до сих пор не найдено никаких хороших Решение относительно вышеупомянутых шасси. Я проверяю транзисторы 7443, 7450, 7441 без помощи. Когда я chanage программам вверх и вниз устанавливает отлично работает в этом condition.Screen G2 регулировка была сделана без успеха. |
| imran khan 13/02/2013 10:49 |
Now talk about the problem and soiution. ДОБАВЛЕНО 13/02/2013 12:06 shutdown time is fixed and its about 5 sec when displaying the image and went off. |
| imran khan 13/02/2013 14:08 |
I found this document and i don't no its works in my case.
Here it is this proablem occure for many reason. 1:have to adjust g2 voltage properly.normaly 21 inch tv it should be 290 volts with a standerd digital meter. 2:chake pin no 69 of uoc for protectin it should not be below 3.2 volt. 3:also chake pin no 80 of uoc for key protiction.also in no 57 and 54 for 1k and bcl .57 pin voltage 6.8 and 54 2.7-3.4above it set will be in protection. 3:riplace pair of driver transistor bc327 and 337 with original type. 4:chake 5 v at tr 7406 collector if not its eht over current. 5:replace v gurd pair transistor bc857. |
| makeym 13/02/2013 14:26 |
imran khan, L01.1A. - это шасси описано вдоль и поперёк! Если нет на англицком - учи русский!
Тюнер менял? (усе идиоты сперва крупные детали меняют  , да простит меня боже!  ) |
| imran khan 13/02/2013 15:17 |
Come to the topic please and i don't understand what you want to say.? |
| imran khan 13/02/2013 16:27 |
swap the main board with other philips tv and its works good.
CRT FOUND BAD |
| makeym 13/02/2013 16:51 |
And why the photo - we that this chassis is not seen? You have to learn Russian. Tuner -? |
| imran khan 13/02/2013 17:46 |
Update
I modify the Heater supply for faulty CRT Internal short found on BK to G1 Trick works and the above tv set works fine now. |
| makeym 13/02/2013 17:51 |
Well, so what's the problem? |
| imran khan 13/02/2013 18:44 |
TV works good after one houre testing. |
