Panasonic SA-AK58 Service Manual page 126

SCHEMATIC DIAGRAM-9
F
DPL CIRCUIT
C851
C829
C830
C831
C832
C833
C834
4.5V
80 RBPF3
C836 50V0.47 4.5V
79 DC CUT
C842 50V4.7 5.2V
78 L-R RECT
C843 50V0.47 4.5V
77 DC CUT
C844 50V4.7 5.2V
76 L+R RECT
C845 50V0.15 4.5V
75 VCS TH
C846 50V3.3 4.5V
74 VCS1
C847 50V0.15 4.5V
73 VCS2
C848 50V0.15 4.5V
72 VLR2
C867 50V3.3 4.5V
71 VLR1
C868 50V0.15 4.5V
70 VLR TH
C870 50V4.7 5.2V
69 L RECT
C875 50V0.47 4.5V
68 DC CUT
C883 50V4.7 5.2V
67 R RECT
C896 50V0.47 4.5V
66 DC-CUT
4.5V
65 L BPF3
C898
0.1
B
A
C823 R807
50V10 560
IC804
BA4558FE2
R848
4.7K
BUFFER AMP
B
0V
5 6
4 3
-7.2V 0V
R847
4.7K
A
C825 C810
0.018 50V10
A B C D A B
CN801
1 2 3 4 5 6 7 8 9
B
To MAIN(CONTROL)
CIRCUIT(CP304)
on SCHEMATIC DIAGRAM-15
:POSITIVE VOLTAGE LINE
:NEGATIVE VOLTAGE LINE
16V220
16V220 C861 50V2.2
16V10
16V10
16V10
16V10
0.1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
IC801
LV1041M
DOLBY PROLOGIC
CONTROL
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50
C802
50V2.2
A
R806 R808
47K 220
C822
100P
A
0V 0V 7.2V
7 8
2 1
0V 0V
C819
33P
B
R804 R805
1K 56K
R803
220
CN802
1 2 3 4 5 6 7 8
B
To MAIN(CONTROL)
CIRCUIT(CP305)
on SCHEMATIC DIAGRAM-15
:CENTER SP. DRIVE SIGNAL LINE
:CD SIGNAL LINE :SURROUND SP. DRIVE SIGNAL LINE
D C
16 17 18 19 20 21 22 23 24
NC 25
9.1V
Vcc 26
2.6V
C VOL OUT 27
4.5V
C OP IN 28
A GND 29
4.5V
C OP NF 30
3.9V
C OP OUT 31
2.6V
VOL REF 32
2.7V
S OP OUT 33
4.5V
S OP NF 34
4.5V
S OP IN 35
2.6V
S VOL OUT 36
4.5V
OP VREF 37
2.6V
S VOL IN 38
4.5V
S OUT 39
4.5V
DC CUT 40
49 48 47 46 45 44 43 42 41
X801
(8MHz)
1
2
B
3
R890
560
5.1V
16 15 14 13 12 11
IC803
BU2090AF-E2
SYSTEM CONTROL
1 2 3 4 5 6
0V 0V
A
B
14.5V
C838 R880
50V1 1K
A
C828 R878
50V1 1K
B
IC802
BA178M09T
REGULATOR
OUT GND IN
3 2 1
9.1V 14.5V
L801
47 H
C863 C889
50V0.1 33P
R857
22K
C865
16V10
A
C817 50V22
B
C866
R856
16V10
C864 0.047
22K
C888
C816 16V10
33P
C862 50V2.2
C815 50V0.33
Q804
KRA111STA
R868 MUTING CONT.
1K
0.9V 0.8V
Q803
KRA111STA
R865 MUTING CONT.
1K
0.9V 0.8V
A B
R866
2.2K
R867
2.2K
2.3V 2.3V
10 9
7 8
5V 5V
R871
2.2K
R858
2.2K
Q801,802
2SD2114K1V
A B MUTING
Q802
R860
0V
120
0.7V
B
R859
120
0.7V
A
0V
Q801
R864
1M
R863
1M