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FoLLgoTT
Joined: 29 Jan 2009
Posts: 7
Location: Hannover, Germany
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| Posted: Tue Sep 29, 2009 5:51 pm Post subject: Problem with Sony G90 |
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My Sony G90 doesn't start up anymore. 
It just does nothing when I press the power on button. The display on the back is black and no LED lightens up. Even the light of the built in remote doesn't work. But when I insert the power cable I hear this typical slightly audible sound which shows that there is power on the cable. I checked the two fuses on the back and they measured ok.
Does anyone has any idea?
Thanks!
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Nils
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Tue Sep 29, 2009 5:52 pm Post subject: |
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Yes, the power supplies (one of them) is most likely bad. THese are very tricky to repair, but I have spares or can repair yours.
Let me know if you want to send the two boards in.
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FoLLgoTT
Joined: 29 Jan 2009
Posts: 7
Location: Hannover, Germany
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| Posted: Mon Oct 05, 2009 8:05 pm Post subject: |
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Thanks for your answer. 
I measured a bit and I found out that R4 at the F board is defective. The service manual describes it as a fuse resistor. Now I have to find a replacement which doesn't seem to be easy.
Do you know what could have caused the fusing?
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Nils
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FoLLgoTT
Joined: 29 Jan 2009
Posts: 7
Location: Hannover, Germany
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| Posted: Fri Oct 16, 2009 3:51 pm Post subject: |
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Thread can be closed. I changed that resistor and the G90 works again.
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Nils
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ilias
Joined: 20 Apr 2007
Posts: 116
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| Posted: Fri Oct 16, 2009 3:54 pm Post subject: |
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Take a 2000VA UPS, for the dream machine!!!!!!!!
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