Good evening,
This is my first time ever using old audio equipment and I'm a little lost.
I recently found an old Mission PCM 7000 in my house and was trying to figure out if it was still in working order.
From the fair amount of troubleshooting I've done - I've gathered that there are a few abnormalities:
1/ It will have trouble reading some discs. It can take anywhere from a few milliseconds to about ten for it to display the CD's information.
2/ It may display the CD's information but will then not be able to read the disc, or will take longer than it should.
These discs all work fine on more recent digital sources.
3/ Sometimes when reading a disc it will make a low humming or buzzing sound. And usually the "ERROR" message will appear.
I hope I've made myself clear enough. I will include some pictures of the bits and bobs inside.
It all seems to be in good condition, the only problem I've seen is that one of the green sticky tapes (no idea what they are for) fell on the red board and left some sticky residue.
Any advice would be greatly appreciated, thank you very much for your time.
This is my first time ever using old audio equipment and I'm a little lost.
I recently found an old Mission PCM 7000 in my house and was trying to figure out if it was still in working order.
From the fair amount of troubleshooting I've done - I've gathered that there are a few abnormalities:
1/ It will have trouble reading some discs. It can take anywhere from a few milliseconds to about ten for it to display the CD's information.
2/ It may display the CD's information but will then not be able to read the disc, or will take longer than it should.
These discs all work fine on more recent digital sources.
3/ Sometimes when reading a disc it will make a low humming or buzzing sound. And usually the "ERROR" message will appear.
I hope I've made myself clear enough. I will include some pictures of the bits and bobs inside.
It all seems to be in good condition, the only problem I've seen is that one of the green sticky tapes (no idea what they are for) fell on the red board and left some sticky residue.
Any advice would be greatly appreciated, thank you very much for your time.
Attachments
It is based on a Philips CD player (160, 360,460 etc.) Check the soldering pads as some components need resoldering.
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Have you tried cleaning the lens of the laser? Unplugged of course.
Those blue Philips capacitors are problematic
Those blue Philips capacitors are problematic
I've checked most of the easily attainable circuit boards (including underneath the drive). From what I can see, none look damaged.
But then again, I don't have much knowledge on the subject.
Would it help to add extra pictures ?
I have, with some lens cleaning fluid. It actually helped recognise most of my "previously unrecognisable" CDs.
Why are they problematic? Are they defective?
I'll try to keep messing around with it but I might just have to solicit the advice of a professional and maybe get it checked out.
If I get around to it, I'll make a follow-up post. It might help some people in the future.
If I get around to it, I'll make a follow-up post. It might help some people in the future.