Marantz cd5001 Mods ? - Page 3 - diyAudio
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Old 7th June 2006, 02:19 AM   #21
mkmk! is offline mkmk!  Antarctica
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Default more for the cd5001

1)Is very impotrant to bypass the ic's with the capacitors.

2)if you change the opamps you get a totally different sound so i insist you should try it. THESE OPAMPS ALSO HAVE A LOT OF NOISE
order smd versions

3)locate the cs 4392. Bypass the supply with 1mf mkt +10mf tantalium for analog and digital

4) on the cs4392 some pins are for filtering. replace the cheap capacitors (1mf , 10mf) with good ones

you have the pm 7200? i would like if you could send me or post here a clear picture from the inside to see if it worths to buy it.... and tweak it.

thanks a lot
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Old 7th June 2006, 09:29 AM   #22
zanash is offline zanash  United Kingdom
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I've given taz a hand with his mods...........

Quite a stunning improvment was to swap the output caps for a pair of 2.2uf 400v pio caps[ not ideal but al i've got]. the remainder of the output tracks were taken off board with silver wire.

The player now sounds very good ....fast smooth and deep controled bass.

I'd agree about the opamps .....

what socket have you used ....a dil8 or a smd typ ?
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Old 7th June 2006, 08:20 PM   #23
Taz is offline Taz  United Kingdom
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hehe "a hand" eh zanash
if it wasn't for this guy nothing would have got done so big thanks for that zanash
i can send you a copy of the pm7200 manual mkmk if you like
i would imagine there are some tweaks that can be made to this amp so if you come up with any recomendations for it i am all ears so to speak
so far the cd mods have made such a large difference that i have now decided to keep my speakers where as before i was ready to change them so big change then.
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Old 3rd February 2007, 12:33 PM   #24
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Hi guys.
i bought also this player (5001 not-OSE) and will try to mod it. But do have some pics about what you do ???
Thx.
Olivier
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Old 7th February 2007, 08:00 AM   #25
zanash is offline zanash  United Kingdom
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if you need any help .....do ask !

but its easier by email !
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Old 7th February 2007, 11:44 AM   #26
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Hi Zanash,
thank you. As you can see, i live in the UAE but i am French so my English sounds sometimes not very good so forgive me. I have some knowledge about soldering and "general" electronic.

Well, firstable i would like to 'improve" the output caps for a "better sound" as a lot of people say.... It's simple 5001 and not OSE cd player so i think there are only basic parts inside.
After, i would like to work the clock and after this....i will see !

As you can guess, i bought this cd player to learn how to do mods. I bought an external DAC (North Star), i just need the optical or coax output.

Hoping i didn't do too much mistakes....

Olivier
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Old 7th February 2007, 02:18 PM   #27
zanash is offline zanash  United Kingdom
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the 5001 has digital coax out....

if your needing a cable a single rca rca ic will work .......

the dc blocking caps can be swapped for off board 4uf 160v pio[paper in oil]
I got a set off ebay that were nice ...and cheap ex ussr military by all accounts.

just fit jumper wires to the caps from the board and back ...you don't even have to worry about polarity .....the caps are c210 c310...

you must remove the four muting transistors d404 d405 d406 d407

these will be squashing the dynamics and clarity of the player.

you could fit bulkhead mount sockets in which case take the signal out from the dc blkocking caps straight to the centre pin of the new sockets ....the old sockets need to be desoldered. A connection to the ground from the new sockets must be made to the original ground made on the pcb.
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Old 7th February 2007, 02:37 PM   #28
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Thx. Do you have some photos or links to photos....?
Will try to understand everything you said !!!!!!!! But i see the 4 transistors....
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Old 7th February 2007, 03:32 PM   #29
zanash is offline zanash  United Kingdom
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email me and I'll see what I can send you
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Old 7th February 2007, 05:14 PM   #30
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Hi Zanash

I cant email you as I am new, would like any pics if you have or how to identify the o/p caps. I have the 5001OSE. Many thanks. I am guessing this is one of the easiest mods/improvement alond
g with removing the muting trannys?

Also....I am about to get a DV7600 that is supposed to have a decent audio DAC - will the 5001OSE still be better at CD repoduction??

Thanks
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