Help: Marantz NA7004

3873 · 發表於 2012-10-16 23:27

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Help!

I mixed up two caps when I was doing modification of my NA7004.

Can any Ching / C FU tell me the spec of the caps that which one is "50V 3.3u" and "16V 100u"

Thank You

billymud · 發表於 2012-10-16 23:40

本帖最後由 billymud 於 2012-10-17 00:20 編輯

你張相係摩前 or 摩後映架 ?

通常 35v 10uf 細粒D, 16V 100uf 大D.

3873 · 發表於 2012-10-16 23:57

This photo is after modification. 借KK HO Sir 's photo 一用

The original caps are in same size. I removed them together and I found that they were different uf.

Oh my god!!

Please help...

Thank you

3873 · 發表於 2012-10-17 00:01

They were "50V 3.3u" and "16V 100u" , they were in same size

billymud · 發表於 2012-10-17 00:14

3873 發表於 2012-10-17 00:01
They were "50V 3.3u" and "16V 100u" , they were in same size

師兄, i see what you meant.
你用DVM 測量下 circuit, or track the power etch, 應該可以 "跟" 返 which location be 50V or 16v applied vor~~. right ?
50V should be related to the Op-Amp portion, while 16V be the logic/control.

3873 · 發表於 2012-10-17 00:25

Both of them are go into the D/A convertor Cirrus Logic CS4398

Thanks, Ching!!

billymud · 發表於 2012-10-17 00:27

3873 發表於 2012-10-17 00:25
Both of them are go into the D/A convertor Cirrus Logic CS4398

Thanks, Ching!!

Track the etch run and the pin outs of Cirrus Chip, if so.

3873 · 發表於 2012-10-17 00:37

OK, I will try.

But if any Ching can tell me the spec should be the quickest way teh solve the problem.......

Thank Ching!!

billymud · 發表於 2012-10-17 00:49

3873 發表於 2012-10-17 00:37
OK, I will try.

But if any Ching can tell me the spec should be the quickest way teh solve the prob ...

more reading will help you, especially for further MOD, tuning your favorites
http://www.cirrus.com/en/products/cs4398.html

Perhaps, you would like to live the easy way by spoon feed.
good luck & good nite.

3873 · 發表於 2012-10-17 01:02

Thank you Billy Ching!!

[請教] Help: Marantz NA7004

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