Pioneer DV-S755AI Service Manual page 91

5
Diagnosis Method of Audio Block
How to diagnose each audio signal of DVDM Assy without installing the SACDB Assy
Do not connectes between
(DVDM)
1
Connect pin 9 of CN502 (DSP ICM) on the DVDM Assy to GND.
B
DVDM ASSY
SIDE A
2
Short-circuit R581 and R582 by lead wire.
B
DVDM ASSY
SIDE B
3
To confirm the Front L/R ch,
set "Audio Output Mode" of "Speakers" in "The Initial Settings Menu" to "2 channel", and playback the disc.
4
To confirm the Surround Ls/Rs ch and Center/Subwoofer ch,
turn the above setting into "5.1 channel", and playback the disc (Ls/Rs and Center/Subwoofer signals are recorded).
5
6
↔
,
CN502 CN801 CN531
(SACDB) (DVDM)
Front Side
Front Side
6
7
↔
of FFCs.
CN901
(SACDB)
CN502
pin 9
1
Connect to GND
(DSP ICM)
34
2
R581
Short-circuit
R582
DV-757Ai
7
8
1
17
44
53 104
1
2
91
8
A
B
C
D
E
F