Carver C-4000 recapping

Przem,
I think everything is correct .
The sound of delay unit is poor .
It's designed in this way ( bandwidth , etc ) : you must not ear the rear speakers .
It's only a delay unit and not Dolby Sorround unit .
If low level outputs are O.K. means that power amp is O.K. , because the signal comes from it
via a 20 dB att.
In the owner's manual it' s written clearly that the sound of delay unit is poor ,
but it's sufficient for its purpose .
My suggestion ( my solution ) is to use internal power amp connected to low cost speakers .
Enjoy your C4000.
Ciao
Marco
P.S: Suggestion : replace the connectors of power amp with banana connectors .
 
Przem,
see and study page 24 of the service maual .
It's the block diagram of C4000.
Every explanation is there .
Ciao
Marco
 
Volume pot

Hi, can anyone tell me the correct specifications for the C4000 volume pot?
Thanks, Locatel.
 
On service manual I have found 20KA X 2.
I think it means : dual 20 KOhm log pot .
Ciao
Marco
 
Przem, if you had a shorted output in the 700 you couldn't keep a fuse in it.
 
Przem ,
two suggestions :
-replace the tone board with the one of the other C4000 and verify if O.K or K.O .
-verify the correct placement of de thump fets .
( probably you have to rotate them of 180 degrees ) .
It's very easy to make a mistake because you to solder them on the opposite site of the PCB
in case of replacement . I presume that this is the issue , because IC2 is connected to the de thump circuit .
Ciao
Marco
 
Przem ,
glad to kwow you have fixed the problem .
You are perfectly right when you say that servicing is a complete different thing
from upgrading . Besides after 50 a magnifier is absolutely necessary .
Ciao and have a fun with new ICs.
Marco
 
P.L.F. said:
Today I finished recapping of the other C-4000 preamp I have and this time I did't create any mess :-) . For the first time I was using PanaVise PCB holder - what a great tool!!!

The C-4000 sounds so crisp & clear now and with expected bass extension. Surprisingly after recapping the loudness contour function started to work again...?

This unit together with fully comp PL700 II (for cooling there are two 120 VAC fans connected in series); Yamaha CD-S300-RK Rackmount CD Player, where one can plugin an iPod with Apple Lossless files to avoid frequent disk changing, and Yamaha PA S4115H speakers will serve garden parties this summer ... :hello1:

Pity I leave so far from you guys but will try play loud then :compress:...
Click to expand...

Great looking setup Przem...
 
You must log in or register to reply here.
Back
Top