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dim ELD display

 
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cliveb
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PostPosted: Mon Jan 23, 2006 3:24 am    Post subject: dim ELD display Reply with quote

Hi.

I'm trying to repair my Sony DHC-MD333. The main ELD has suddenly become very dim - the display is just visible in a darkened room! I presume the supply to the ELD grid is faulty. How is the supply/driver for this supply generated?

The display board is easy enough to explore, but the rest of the boards in this machine were clearly not designed to be repaired! Before I start disassembling it would be great to know roughly where to look.

Thanks

Clive
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eso
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PostPosted: Sun Jul 09, 2006 2:35 pm    Post subject: Dim eld... Reply with quote

Hi,

in my case it was faulty zener (D534) in negatine supply + resistor (R531) feeding it, in the middle wing board on the right side. In wire JW 589 connecting the board to main board should be c. -32V.
You need to remove lot of things. Be very carefull removing the flat cables when disassembling ...they brake very easily.

br erkka
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