Marantz SA8400 modifications
Bitumen damping
Overview PCB
PSU overview
, in the backgrond the clock PCB
The Flea
is visible.
PSU
analog section
Upgrade of the analog section
with toroidal transformer,
2x12V/5VA (953-1513) of 7VA (953-1599).
...Black Gate N and Nichicon KG electrolytics
PSU
digital section...
...with Tentlabs shuntregulators
Low-pass filter
Muting relay:
1
2
CS4397 decoupling
CS4397 SMD decoupling
Later upgrade with the
discrete ouput stage
and 15V toroidal transformer
I'm not in any way associated with Tentlabs.
Honest!
DSD chip
Transport
Modifications list
(PDF)
Service Manual
(PDF)
