Need service manual of Sony CDP 338ESD - diyAudio
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Old 4th October 2006, 06:41 AM   #1
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Default Need service manual of Sony CDP 338ESD

Please help me finding it, if available.
Many thanks for help!
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Old 4th October 2006, 01:04 PM   #2
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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?
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Old 4th October 2006, 02:27 PM   #3
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What is the problem with your 338esd, i can help you as i am using the same player.
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Old 4th October 2006, 03:32 PM   #4
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Quote:
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.
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Old 6th October 2006, 01:01 PM   #5
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... seems better leave any hope for help ...
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Old 6th October 2006, 04:48 PM   #6
rabbitz is offline rabbitz  Australia
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You can get it at Manuals Center but you have to pay.
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Old 7th October 2006, 01:48 AM   #7
kevin-g is offline kevin-g  United Kingdom
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Default Sony CDP338ESD service manual

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
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Old 7th October 2006, 04:37 AM   #8
zanash is offline zanash  United Kingdom
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don't forget the muting transistor[ if fitted ] these have a very detrimental effect on the sound.
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Old 7th October 2006, 07:09 AM   #9
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Quote:
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.
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Old 7th October 2006, 08:10 AM   #10
zanash is offline zanash  United Kingdom
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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
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