Mulja tv repair portal

Equipment Repairs => LCD TV forum => Topic started by: Avinitlarge on November 11, 2010,13:35:08

Title: Atec AV370D Standby fault
Post by: Avinitlarge on November 11, 2010,13:35:08: Hi
Ive got an Atec AV370D TV to repair. The fault was supposed to be "Goes off after ten mins" after looking at it, I cant even get it to stay on. Sometimes it comes on for a few seconds then goes off and the standby light stays orange and sometimes it wont come one at all, Just the orange standyby light. Any suggestions??

Regards
Paul
Title: Re: Atec AV370D Standby fault
Post by: Avinitlarge on November 13, 2010,08:08:53: Here are some pics if it helps
(http://i6.photobucket.com/albums/y233/Avinitlarge/DSCF4216.jpg)
(http://i6.photobucket.com/albums/y233/Avinitlarge/DSCF4217.jpg)
(http://i6.photobucket.com/albums/y233/Avinitlarge/DSCF4218.jpg)
(http://i6.photobucket.com/albums/y233/Avinitlarge/DSCF4219.jpg)
(http://i6.photobucket.com/albums/y233/Avinitlarge/DSCF4220.jpg)
Title: Re: Atec AV370D Standby fault
Post by: Avinitlarge on November 14, 2010,17:06:56: Ive fitted a set of caps in the PS and it seems to have cured it :sign0098:
Title: Re: Atec AV370D Standby fault
Post by: Avinitlarge on November 16, 2010,17:44:20: Bugger. The original fault has finally shown up. It has done it 3 times in the past 35 mins. The 1st time it shut down and the standby light went orange so I turned it of and back on at the main switch, it was ok for about 10 mins then the screen just went blank but the power light was still green and the back light was still lit, the 3rd time was the same as the 1st time. Im not sure how hot these sets are supposed to get but there is alot of heat coming from the P/S. Any suggestions???? :sign0085:
Title: Re: Atec AV370D Standby fault
Post by: Turnip on November 18, 2010,12:38:41: Hi AV,

Guess you've changed it but only thing on my list is C202.

Have noticed that some Chinese power supplies get ludicrously hot, my best was a Li-Shin 0223B in a 26 Beko where trannies were running happily at over 100C - Chris.
Title: Re: Atec AV370D Standby fault
Post by: Avinitlarge on November 18, 2010,13:50:13: Isnt C202 on the 370W?? I think I may have found the problem. U24 on in the middle of the main board. its a 1.8v reg and is a 1086xx18. Ive got some coming from RS, should be here tomorrow I hope
Title: Re: Atec AV370D Standby fault
Post by: Avinitlarge on November 18, 2010,19:13:02: Quote from: Turnip on November 18, 2010,12:38:41
Have noticed that some Chinese power supplies get ludicrously hot, my best was a Li-Shin 0223B in a 26 Beko where trannies were running happily at over 100C - Chris.

Bloody hell!! When I was a TV engineer I never saw temps that high but we never did any kind of flat panel, only CRT. Ive been to one of the shops that I used to work at today and he is over run with LCD's and plasmas. They don't build TV's like thet used to. I think a big problem with the modern set is the heat, I think they would last alot longer if they ran alot cooler.