Pioneer DEH-P640 XN/UC Service Manual page 71

*PD5706A
51
75
*PD8088A(DEH-P6400/XN/UC, P6450/XN/ES)
*PD8089A(DEH-P640/XN/UC)
PML008A(DEH-P6400/XN/UC, P6450/XN/ES)
Sel_out_L
PV_in_L
Tone_out_FL
SV_in_FL
Tone_out_RL
SV_in_RL
AGND_L
Front_out_L
Rear_out_L
25
1
44 43 42 41
1
Isolator
circuit
2
3
Primary
volume
4
Anti Alias
5
filter
6
Anti radiation
filter
7
NC
Anti radiation
filter
8
NC
9
Secondary
10
Zero cross
volume
detect circuit
11 Secondary
volume
12 13 14 15
*S-818A33AUC-BGN
VIN
5
1
VOUT VSS
40 39 38 37 36 35
Rch block (same as Lch)
Source
Gain
adjuster
to Rch
from Rch
LPF
(L+R)
Loudness
Treble Middle Bass
volume
Treble2
Bass2
MUTE
Digital block
16 17 18 19 20 21
DEH-P640,P6400,P6450
ON/OFF
4
ON/OFF
V
REF
2 3
NC
34
33
Sel_out_R
32
PV_in_R
31
Tone_out_FR
30
SV_in_FR
29
Tone_out_RR
28 SV_in_RR
27
NC
26
NC
25
AGND_R
24
Front_out_R
23
Rear_out_R
22
71