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Old 25th May 2005, 02:19 PM   #1
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Default first time mod sony 337esd

hiya, was just looking in to the cd upgrade market, was going to look into buying an older cd player and seeing what can be done with upgrading when i came across the sony 337esd, with a little bit of research i found it contains the much talked about tda1541a and not just one of these but 2 ! , ok so where to start , from what ive heard it is good to start with a clock upgrade, then replace caps with black gate (just having this done to my power amp) , any other ideas? i have little electrical knowledge, am using this as a learning project :-) also, anyone know where i can get the schematic. and how do you think it will compare, once modified to my nad t550 dvd player, similar in accoustics to nad c521, which is what i am using at the minute, cheers for any help, mark
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Old 26th May 2005, 04:42 AM   #2
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Hi Mark,

I think you should know this...http://www.diyaudio.com/forums/showt...851#post466851
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Old 26th May 2005, 07:19 AM   #3
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hi, so does this mean that this isnt a very good player to upgrade, would it be a better option to buy an external dac ? someone has offered me a trichord 2 clock for a silly amount of money (30 quid) , have already got the sony 337esd as it used to be my dads, however i am having problems finding all the parts on the circuit board and could do with a circuit diagram, ne idea where i could find them. whats that tiny ohillips chip do ? is it anti-jitter? or am i getting the rong end of the stick? cheers, mark p.s also does clocking the player improve the digital outpu as well or just the dac? thanks, mark
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Old 26th May 2005, 09:59 AM   #4
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Hi Mark,

Sony CDP337ESD is an excelent player in it's own right, so no need for external dac. You should reclock it for best sound, but use better clock upgrade (Tent clock, Kwak clock etc.). Don't use it as learning project, it's to valueable
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Old 26th May 2005, 10:39 AM   #5
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hi, just come across the net audio non-oversampling clock will this work with this player? i would go for the version without a clock and then aply a good quality clock myself, maybe their rocklock if people think the trychord 2 isnt up to the job, as i have seen this in reviews as beeting the reviewer 2 un-named reference clocks, what do people think about this? is it really possible? cheers for any help, mark
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Old 26th May 2005, 11:02 AM   #6
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Do you have SAA7210 or SAA7310 and SAA7220 chipset in Sony? SAA7210/7310 may be soldered on other side of pcb. If you do have this chipset, you can do nonos mod by yourself...

http://xoomer.virgilio.it/hi_fi/com.htm
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Old 26th May 2005, 11:39 AM   #7
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hi , i cant find any of these chips, apart from the tda1541a all other chips are labeled sony, i will take some pictures and see what people think, cheers, mark
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Old 8th January 2008, 01:59 PM   #8
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Hi Mark,
have you made any changes or kept it original?
How does it sound before the changes as I am thinking of getting one.
Thanks
Lee
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Old 23rd November 2009, 04:40 PM   #9
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Default Sony CDP 337-ESD

If any one needs the service manual for the Sony CDP 337-ESD
here is the link !

SONY_CDP337ESD.pdf - Rapidshare.com File Download
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Old 5th December 2009, 07:52 PM   #10
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Default Sony CDP-337ESD service manual

This site does work you just have to be persistent as for some reason they do not have many download slots (unless you are a premium member) and it takes quite a while to actually get a download as it did for me .

SONY_CDP337ESD.pdf - Rapidshare.com File Download
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