Need service manual of Sony CDP 338ESD

[beauty_divine]

Please help me finding it, if available.
Many thanks for help!

[beauty_divine]

So far I'm not the luckiest man in this forum - since my registering I've started two threads asking for help and no answer ever arised
Do I ask wrong things?

[saifee69]

What is the problem with your 338esd, i can help you as i am using the same player.

[beauty_divine]

Originally posted by saifee69
What is the problem with your 338esd, i can help you as i am using the same player.

Actually there is no problem - I bought the machine with the intention to mod it. That is why I'd need the service data and detailed schematics.
I'd be grateful if you could hand it over.

[beauty_divine]

... seems better leave any hope for help ...

[rabbitz]

You can get it at Manuals Center but you have to pay.

[kevin-g]

Hi,
I'm a new member, joined today and cruising threads. I once owned a 338 [a £600 player back in '89 in the UK]. I have somewhere a manual for this and I also modded the outputs with better opamps and output caps. From memory they used NJM5532's and a 4560 for the headphone circuit. For the life of me I can't remember what I used to swop out, possibly AD712's or OPA2604's but this was the very early 90's.

It modded well and was well built with good power supplies. If I was modding it now, all I'd do is swop out the mains diodes for shottky/ultrafast versions and change the opamps and perhaps the output caps. One could fit a Trichord clock to it, it responded well according to their database, but this is a 1989 machine and the laser must be on its last legs by now....

I have had a house move and stuff is in two locations. If you still need the info, I think I could scan those relevant sections if you contact me.
Kevin

[zanash]

don't forget the muting transistor[ if fitted ] these have a very detrimental effect on the sound.

[beauty_divine]

Originally posted by zanash
don't forget the muting transistor[ if fitted ] these have a very detrimental effect on the sound.

As it is a top class machine it doesn't have muting transistors, but relay.
The output opamps I'm going to replace with AD 8066.
The output caps are totally not needed - there is a little voltage offset remaining and it is easy to get rid of it.
I also exchange the transformer secondary part windings supplying the analog part with a toroid and primary stabilized voltage before the original stabilizer schematics.

I really need the service manual in case something might go wrong.

[zanash]

replacing the rca sockets and hard wiring with silver will also provide a useful step up in performance ...as long as you get good rca sockets