Pioneer DEH-P440 Service Manual page 53

5
PML009A(DEH-P440/XN/UC)
44 43
Isolator
SEL_out_L 1
Primary
PV_in_L 2
Volume
Tone_out_FL 3
Anti Radiation
SV_in_FL 4
Anti Radiation
Tone_out_RL 5
SV_in_RL 6
Tone_out_PreL 7
SV_in_PreL 8
0.5dB shift volume
Mute
9
AGND_L
Mute
10
Front_out_L
Mute
Mic_Amp
Rear_out_L 11
12 13
PML008A(DEH-P4400/XN/UC, DEH-P44/XN/UC)
44 43
1
Sel_out_L
Isolator
circuit
2
PV_in_L
3
Tone_out_FL
4
SV_in_FL
Tone_o ut_RL 5
6
SV_in_RL
7
NC
8
NC
9
AGND_L
10 Secondary
Front_out_L
volume
Rear_out_L 11 Secondary
volume
12 13
5
6
42 41 40 39 38 37
Treble
Source Gain
adjuster
Anti
Alias
Filter
Treble_2
Filter
Filter
Bass_2
Zero Cross
detector
Anti Radiation
Secondary Filter
Volume
Secondary
Volume
Secondary
Volume
Digital Block
4_order_LPF
with fc=12Hz
14 15 16 17 18 19
42 41 40 39 38
Rch block (same as Lch)
Source
Gain
adjuster
from Rch
Primary
volume
Loudness
Treble Middle Bass
volume
Anti Alias
filter
Anti radiation
Treble2
filter
Anti radiation
Bass2
filter
MUTE
Zero cross
Digital block
detect circuit
14 16 17 18
15
DEH-P440/XN/UC
6
7
36 35 34
33
SEL_out_R
Middle Bass
32
PV_in_R
Loudness
Volume
31
ASL
Tone_out_FR
30
SV_in_FR
HPF
29
Tone_out_RR
28
SV_in_RR
27
Tone_out_PreR
26
SV_in_PreR
LPF
Phase control
25
AGND_R
24
Front_out_R
Rch Block
(same as Lch)
23
Rear_out_R
20 21 22
37 36 35 34
33
Sel_out_R
32
PV_in_R
31
Tone_out_FR
to Rch
LPF
(L+R)
30
SV_in_FR
29
Tone_o ut_RR
28 SV_in_RR
27
NC
26
NC
25
AGND_R
24
Front_out_R
23
Rear_out_R
19 20 21 22
7
8
A
B
C
D
53
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