BUSH LC39GL12L - Stuck on standby light

[speedypro]

Can anyone point me in the right direction? This tv is stuck in standby mode as in a solid red light. No physical damaged seen on the power board. Whatnirmally causes a red standby light?

[CapLeaker]

Re: BUSH LC39GL12L - Stuck on standby light

umm... no pics, nothing to look at. I'd measure if the main board sends PSon to the PSU.

[sordids999]

Re: BUSH LC39GL12L - Stuck on standby light

Posting pictures of the back of your tv showing the boards with clear pictures may help you more with fixing your problem

[newtothis]

Re: BUSH LC39GL12L - Stuck on standby light

Can anyone point me in the right direction? This tv is stuck in standby mode as in a solid red light. No physical damaged seen on the power board. Whatnirmally causes a red standby light?

Darlaston?

You live in same town as me! Small World.

[speedypro]

Re: BUSH LC39GL12L - Stuck on standby light

umm... no pics, nothing to look at. I'd measure if the main board sends PSon to the PSU.

Sorry. No good camera to take pictures but as i have said, no visual damage etc. I do get voltage to main board. But it wont turn on, just stays on red light. W have tried another board bought on ebay and same issue but not sure if board is 100% working. We assume main board.

[vinceroger69]

Re: BUSH LC39GL12L - Stuck on standby light

what are the board numbers on each boards.

[speedypro]

Re: BUSH LC39GL12L - Stuck on standby light

what are the board numbers on each boards.

Power Board: mip390hw rev. 1.0

Main: t.msd306.68a 12023

[newtothis]

Re: BUSH LC39GL12L - Stuck on standby light

speedypro,

PM me as I can help you directly

[speedypro]

Re: BUSH LC39GL12L - Stuck on standby light

Im getting all output dc voltages when I short the PSon pins. But when I attached the main board, no dc voltages. Again I have ordered a used main board off ebay and I no idea if that works or not. But why when the main board is connected to the power board I get no dc voltage? Or should I say I get dc output but just for few seconds.

Is it normal for the Bridge Rectifier to make a buzzing noise?

[steviewonder]

Re: BUSH LC39GL12L - Stuck on standby light

a common issue on the t.msd306 pcb's for this is corruption of the flash ic (the 8 pin one)
7 out of 10 ten times that's your issue.
The buzzing noise is quite normal,provided you can only just hear it.

[Andrew F. Ali]

Re: BUSH LC39GL12L - Stuck on standby light

Main Bd 3.3V Regulator probably has a short causing the Pwr Bd voltages to drop off. I think your used board off e-bay will work. I have acquired many 'used' Bds from e-bay and ALL have worked so far...Good luck

[melonslug]

Re: BUSH LC39GL12L - Stuck on standby light

Hello, I am new to Badcaps and I have to say there are some great helpful chaps on here. I was hoping I can continue this thread a bit further and ask for some help. I also have the BUSH LC39GL12L and have the same problem, stuck on standby (blue light wont come on, only red). Just like Speedypro I have all the right voltages at the output of the power supply board mip390hw and am happy that is fine. So I presume the problem is in the main board t.msd306.68a . Now I see newtothis has ask the guy to pm him, could you help me too please newtothis? Also I see steviewonder has stated a problem with the flash ic, could you tell me where this is on the board please?Also AndrewF.Ali mentions the 3.3 regulater shorting, could you point out where this is too please. Many thanks in advance to any replies.