Replaced the laser unit (Philips VAM 1201) of a troubled Marantz 4000 today. It's my first attempt.
When powered on the display says READING then OPEN and the drawer opens; when made to close, the display says READING, then OPEN again and the drawer re-opens. Inserting a CD has no effect on this behaviour.
I've rechecked the wiring and connectors several times, and used antistatic procedures throughout. Could I have damaged something eg. laser motor when soldering?
When powered on the display says READING then OPEN and the drawer opens; when made to close, the display says READING, then OPEN again and the drawer re-opens. Inserting a CD has no effect on this behaviour.
I've rechecked the wiring and connectors several times, and used antistatic procedures throughout. Could I have damaged something eg. laser motor when soldering?
Are you sure the tray is well in place? On some laser units one has to remove a solder bridge to make it work, forgot about the 1201 though.
/Hugo 🙂
/Hugo 🙂
You've given me a slim hope, netlist, that it may not be a disaster. The tray in fact doesn't look as if it lines up properly at the back when closed, as if it's on the wrong cog. When I was dismantling it, before I discovered that the front lip of the tray just slides up and off to allow the whole unit to be removed backwards, I'd been following someone's experiences with a Marantz CD63 and trying to release the tray by pulling it straight out, and wondering why I couldn't find the drawer stop. I might have dislodged it then. I'll let you know how I get on, and thanks.
You wouldn't want my advice richie00boy, but you have my sympathy.
As for my problem, I'm pretty sure the tray is out of place on its tracks and needs to move 5 or 6mm backwards, but I can't as yet find a way of doing it by adjustment rather than force. I'll fiddle on, and hope for inspiration.
As for my problem, I'm pretty sure the tray is out of place on its tracks and needs to move 5 or 6mm backwards, but I can't as yet find a way of doing it by adjustment rather than force. I'll fiddle on, and hope for inspiration.
Take a bow, netlist. I forced the tray off its tracks a few times and altered its starting position on the main cog and finally got it to close the whole way. Reads and plays like new! Now I can afford to orgy.
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