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Equipment Repairs => LCD TV forum => Topic started by: tel19 on December 21, 2012,23:33:33

Title: Technosonic LCD3201 stuck in standby
Post by: tel19 on December 21, 2012,23:33:33

I am trying to resolve a problem with a Technosonic LCD3201 where it will not come out of standby.  Everything I have found on the forum indicates that this is a power issue but I have now tried 3 different PSUs and none have resolved it.  I am therefore assuming that the next board to try to replace is the 4h.m5801.s01 (I think this is what is mostly called the "mainboard" and handles the connection to the standby button, the IR receiver and the LCD panel) but all replacements I have found state that they are for the LCD3201S rather than the LCD3201.  Please can anyone advise if there is any difference between these two models and whether the 4h.m5801.s01 is also the correct board for the LCD3201.

Any other info regarding the issue about the TV not coming out of standby would be appreciated or any test I can perform to test the various boards.

Title: Re: Technosonic LCD3201 stuck in standby
Post by: fix2003 on December 22, 2012,02:45:11

there is a chance the eeprom has been corupted
do not have this one may some here have it and can upload file

Title: Re: Technosonic LCD3201 stuck in standby
Post by: Turnip on December 30, 2012,12:47:36

Hi Tel19,

Have you checked the inverter ? Had a similar problem with this set where CMO I320B1-16A had four O/C fuses, suspected a P/S fault but found none. Replacement inverter from Ebay - all OK, a year later.

Happy New Year folks - Chris.

Title: Re: Technosonic LCD3201 stuck in standby
Post by: tel19 on January 02, 2013,07:29:18

Thanks for the suggestion Chris.  Is there any way to test the inverter or is the only option to replace it and see what happens?

Title: Re: Technosonic LCD3201 stuck in standby
Post by: imran khan on January 05, 2013,23:10:32

Check inverter board 24v 12v  5v line for short circuit,
Causing set stuck in stby mode.

Title: Re: Technosonic LCD3201 stuck in standby
Post by: jordan on January 06, 2013,09:00:48

Olso check IC-U9 (DM0265R) standby power supply

Title: Re: Technosonic LCD3201 stuck in standby
Post by: imran khan on January 06, 2013,10:48:47

Hello Fixitnow
Nice to meet you here.
Imran khan

Title: Re: Technosonic LCD3201 stuck in standby
Post by: fix2003 on January 08, 2013,02:48:40

Quote from: imran khan on January 06, 2013,10:48:47

Hello Fixitnow
Nice to meet you here.
Imran khan

like most i have joined a few sites

Title: Re: Technosonic LCD3201 stuck in standby
Post by: tel19 on January 08, 2013,07:43:17

Thanks for everyone's help.  It turned out to be the mainboard in the end.

Title: Re: Technosonic LCD3201 stuck in standby
Post by: sparky on January 08, 2013,08:37:50

hi
nice to  no you cured it one less for the skip
dave