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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Recording DVD unresponsive
Panasonic DMR EZ25 , no known history.
ps voltages agree with manual slow to respond to buttons like open/close and will not play discs , will go through the sledge/platter sequence before ejecting, laser light present. Most of the time just says please wait. Will not respond to the almost inhuman hand-span 3 button push at power-up to go into service mode. Will respond to forced power off of 10 second push of power/standby button and go to presumably flashing clock of 0:00 that does not advance to 0:01 I've reseated all ribbons and before ESR'ing caps , and exploring rear of main board, any ideas of anything specific to look at |
#2
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Recording DVD unresponsive
Well that was an interesting exercise in fingertip manipulation . Fathomed
(accidently ;-)) how to release the central area of the deck then remove the 2 sled slide rods and then remove the laser assembly. Now know it is type RAF3332A. Then get inside the optics, all without disturbing any set-screws for slide or optics I think, and reassemble. The 45 degree mirror was filthy with dust and even a curl of hair right at the centre, if it was the outlet lens that was that dirty then a CD/DVD player would work. Not yet fully reassembled and powered up yet |
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