Actually the KSL210 loader is quite OK, pressed steel not plastic, and just before any money saving seems to have kicked in!Your project is interesting, but I don't understand why you want to use the Sony mechanism
The KSL150 is even nicer with a diecast laser diode. There are various types though so you need to use "image search"
The requirement to fit the original aluminium drawer front is a factor that cannot be overstated either.
But since you brought up Sony vs Philips mechanisms it's a really good point, so here's why I've discounted it this time
The VAM1202 is (in my opinion) is just like the slightly later Sony series, a plastic beast Lets be honest at this point if I were going full Philips it would be CDM4-19 and a rejig of a CD40 (or something)... I actually have a full cd-player kit based on the VAM1202 in a box, I have yet to be motivated enough to house it.
In short it looks like mid 90's Sony, Philips and everyone else got to making CD popular by removing cost to the point there aren't really any high end mechs, CD-Pro being the last one?
Anyway, I think that with some suitably 3d printed chassis add on's the KSL210 will be just fine. All the mech is doing is reading digital data in packets anyway. (Feel like I leapt on a grenade there )
Andy
The fact is that you should focus on one thing, the mechanics are controlled by a servo board, and the servo board is not easy to find. I would have solved this problem by recreating the servo board for the CDM12xx so I would have solved this problem, also I would have used a Musical Fidelity A3.5 CD player and completely redesigned the boards, boosting the power supply and creating various connection options, including the possibility of connecting a tube card or an external DAC. In this case the CD player firmware is stored on a PIC16F88 and therefore copyable and that's what I did. In practice I created a CD player complete with controller, servo board and various options... everything works very well.
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Oooh nice very very nice...
The A3.5 is a good looking player too, the proportions just "click" (I have had one, and the A5CD too) I recall the A3.5 had a lot of space in the case. (good for additions)
I agree with your other comments: power supply and on so on. Same destination different route
At this point I'm 75% with TEAC CD-P4000 servo board - this will unfortunately telegraph 'non standard' because of the track grid on the display so still looking and messing with buffers
Andy
The A3.5 is a good looking player too, the proportions just "click" (I have had one, and the A5CD too) I recall the A3.5 had a lot of space in the case. (good for additions)
I agree with your other comments: power supply and on so on. Same destination different route
At this point I'm 75% with TEAC CD-P4000 servo board - this will unfortunately telegraph 'non standard' because of the track grid on the display so still looking and messing with buffers
Andy
And today I have musings and the classic 'fiddlers nightmare'
CD-P4000 lots of documentation
CD-P4500 nothing!! but looks OK
The CD-P4500 servo board actually looks very similar to the CD-5 but has anyone got a manual? or can even point me at a source.
The P4500 has the clock on the servo board (easy transport) the P4000/Z5000 on the audio board meaning that I have to deal with that up-front, maybe I do anyway - as I said musings
Andy
CD-P4000 lots of documentation
CD-P4500 nothing!! but looks OK
The CD-P4500 servo board actually looks very similar to the CD-5 but has anyone got a manual? or can even point me at a source.
The P4500 has the clock on the servo board (easy transport) the P4000/Z5000 on the audio board meaning that I have to deal with that up-front, maybe I do anyway - as I said musings
Andy
Some decisions made!
Teac CD-P4000 / CD-Z5000 are donor (s) easy decision after all. I will likely fumble around with a HDCD DAC board at some point but the Z5000's twin TDA1541A is acceptable.
The main two boards are separated into servo and audio and importantly they are reasonably compact. Mech is the physically identical KSL150 type - but it has the nicer laser IMHO
I made a brace for the mech with an eye to stiffening / damping the steel chassis - see pictures. Slightly smug that it fit first go to be honest, but I'm also aware that if you think everything is going well its a sure sign you've missed something
This is a dead mech BTW don't panic
For the record the Teac CD-P4500 I mentioned is at least 99% a CD5 in a more standard box. So if you need a service manual for one start there. The only difference is the pitch control on the 'P4500 and light up buttons on the CD-5. Given the complete lack of information of the CD-P4500 that might be a useful nugget.
Andy
Teac CD-P4000 / CD-Z5000 are donor (s) easy decision after all. I will likely fumble around with a HDCD DAC board at some point but the Z5000's twin TDA1541A is acceptable.
The main two boards are separated into servo and audio and importantly they are reasonably compact. Mech is the physically identical KSL150 type - but it has the nicer laser IMHO
I made a brace for the mech with an eye to stiffening / damping the steel chassis - see pictures. Slightly smug that it fit first go to be honest, but I'm also aware that if you think everything is going well its a sure sign you've missed something
This is a dead mech BTW don't panic
For the record the Teac CD-P4500 I mentioned is at least 99% a CD5 in a more standard box. So if you need a service manual for one start there. The only difference is the pitch control on the 'P4500 and light up buttons on the CD-5. Given the complete lack of information of the CD-P4500 that might be a useful nugget.
Andy
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Another bit - Buffers because why not start at the end and work back??
Taking shape - needs dimensioning. It's just a directly coupled buffer stage with some 'sand' in it.
The associated PSU that I still need to look into, will supply the tube heaters in parallel and much more than 24 volts for the B+ supply!!
Andy
Taking shape - needs dimensioning. It's just a directly coupled buffer stage with some 'sand' in it.
The associated PSU that I still need to look into, will supply the tube heaters in parallel and much more than 24 volts for the B+ supply!!
Andy
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CD player that I have been looking for for years.How about something a little more radical on the valve front. An octal version of the MF CDT aka the Frog-eyes CD player.
Do you have the diagram ?
Believe me I considered it. Morgan Jones' comments on the loctals did not escape my consciousnessHow about something a little more radical on the valve front. An octal version of the MF CDT aka the Frog-eyes CD player.
In the end I went with the known (boring) considered the 5703's / 6112 sub-mini's too even the 7586 Nuvistor - if sockets were a thing.
Maybe a version two...
Andy
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