DMR-EH75V DVD drive not reading, not usual - AVS Forum
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post #1 of 3 Old 03-20-2014, 04:37 PM - Thread Starter
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I have a DMR-EH75V that has stopped reading discs.  It is not making the usual noises ("FOUR "chugs" followed by lower-pitched chugs"), but just quietly searches.  I have replaced the laser assy. once (approximately a year ago with near zero post-replacement use), and it recently has started this problem.  I am hesitant to try another laser on a trial and error basis since I am wondering if it could be a pcb controller (?), ribbon cable/connector connection or in fact the laser.

 

Here is what I have tried:

 

Service mode routine 4,1, Laser used time:  about 1600 (was not reset when laser assy. was replaced)

Service mode routine 4,2, Last RAM drive error:  No error (I think F00)

Service mode routine 4,4, Laser power:  Nothing reported (because it can't find a disc?)

No error messages on the front display, (U**  etc...)

I have cleaned the spindle and laser

released and reseated ribbon cable at the laser

 

Any insight would be appreciated.

 

Thanks

Lou

 

Recorder DMR-EH75V

DVD drive VXY1945

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post #2 of 3 Old 03-20-2014, 09:38 PM - Thread Starter
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And I never did any alignment procedure after laser installation.  But it did seems to play and record A-OK.

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post #3 of 3 Old 04-01-2014, 03:57 PM - Thread Starter
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Following through with this, I had AVS member mickinct do a repair on this, and it was great service!  It was the laser (again) and power supply capacitor(s) was replaced as preventative maintenance.  Thanks again! 

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