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Equipment Repairs => LCD TV forum => Topic started by: simple-me on January 17, 2014,16:17:05

Title: GRUNDIG GULCD37HDIT wont turn on
Post by: simple-me on January 17, 2014,16:17:05

Someone please help, my Grundig GULCD37HDIT wont turn on and is stuck in the standby light. I have taken the back cover off and it has a PLCD 190 PT3 23341 power board and a  LC370WX1 SL 01 chasis/panel.

The screen remains black when switched on.

The tv is responds to the remote and the standby button on the side by the standby light going from a bright red to a dim red. That's the only response from it.

Attached are pictures of the board and panel.

Any help is appreciated and thank you.

Title: Re: GRUNDIG GULCD37HDIT wont turn on
Post by: jordan on January 18, 2014,03:22:23

Chassis 17MB15/Vestel
On primary PSU change 3x elkos 10uF and 1x elkos 33uF
Resolder transistors and regulators on PSU

Title: Re: GRUNDIG GULCD37HDIT wont turn on
Post by: simple-me on January 19, 2014,17:49:17

The only diagnostics I have done is take voltages with a meter. there is no audio or back light no screen glow.

Pic shows voltages with stby off

Title: Re: GRUNDIG GULCD37HDIT wont turn on
Post by: simple-me on January 22, 2014,11:05:03

Can someone please help with this? :(

Title: Re: GRUNDIG GULCD37HDIT wont turn on
Post by: jordan on January 23, 2014,03:07:59

To solve this error I have the following information:
-check or change electrolytic capacitors on PSU (so 150uF/485V)
-resolder IC220 and IC224 on main board
-check optocoupler IC801 and IC828
-change Eeprom on main board

Title: Re: GRUNDIG GULCD37HDIT wont turn on
Post by: simple-me on January 24, 2014,12:19:00

Jordan
Thanks for the reply. How do I change the Eeprom on the main board?

Title: Re: GRUNDIG GULCD37HDIT wont turn on
Post by: simple-me on February 06, 2014,16:45:29

I changed the power supply to rule that out but the tv will still not turn on!!!!!???? :(

Can someone please help????? :(