Hello to all.
Long time lurker but infrequent poster here. I have a Forsell Air Reference CD Transport that I am trying to repair. I have completed almost all repairs, (numerous) but am now stuck on sourcing the chip for the display. It is a Forsell ZC400012P programmed CPU for a CE2517 PWB. This chip is needed so the player recognises the closure of the lid and reads the TOC. It appears to be a proprietory chip and not able to be copied.
Of course, as current owners will no doubt have discovered, Dr Forsell himself, despite claims to the contrary all over his website, very rarely even offers the courtesy of a reply to owners enquiries. My many emails to his service department remain unanswered.
There seem to be almost no technicians able, or willing to attempt repairs on these, at least here in Australia. Likewise for scematics etc
Great transport when its working, but I am now beginning to wonder if I'm wasting my time .......
Cheers
'Nutz
Long time lurker but infrequent poster here. I have a Forsell Air Reference CD Transport that I am trying to repair. I have completed almost all repairs, (numerous) but am now stuck on sourcing the chip for the display. It is a Forsell ZC400012P programmed CPU for a CE2517 PWB. This chip is needed so the player recognises the closure of the lid and reads the TOC. It appears to be a proprietory chip and not able to be copied.
Of course, as current owners will no doubt have discovered, Dr Forsell himself, despite claims to the contrary all over his website, very rarely even offers the courtesy of a reply to owners enquiries. My many emails to his service department remain unanswered.
There seem to be almost no technicians able, or willing to attempt repairs on these, at least here in Australia. Likewise for scematics etc
Great transport when its working, but I am now beginning to wonder if I'm wasting my time .......
Cheers
'Nutz
Hmmm. Never heard of the company or the products but as a very experienced repair tech I can say microprocessors in general are usually the first items to be suspected and often found blameless.
Always used to say "whatever the fault is it won't be the micro"
Go down every pin on it and check all inputs etc are correct, PSU, clock, reset, and any microswitch inputs etc. Check the grounds too... measure and scope EVERY pin.
Just something to be aware, and of course there is always the one that is duff...
Good luck 🙂
Always used to say "whatever the fault is it won't be the micro"
Go down every pin on it and check all inputs etc are correct, PSU, clock, reset, and any microswitch inputs etc. Check the grounds too... measure and scope EVERY pin.
Just something to be aware, and of course there is always the one that is duff...
Good luck 🙂
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