Panel Circuit - Panasonic SA-PM21PC Service Manual

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18.3. Panel Circuit

SCHEMATIC DIAGRAM-7
PANEL CIRCUIT
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
KEY1
KEY2
B3RAB0000040
O
1
RMT
VOL_JOG1
VOL_JOG2
VREF-(GND)
VREF+
: -B SIGNAL LINE
: +B SIGNAL LINE
CN901A
1
FL900
A2BB00000138
FL DISPLAY
29
30
31
SEG02
32
SEG01
33
GRID10
34
GRID9
35
GRID8
C0HBB0000044
36
GRID7
GRID6
37
GRID5
38
GRID4
39
40
GRID3
1 2
C914
47P
VR900
EVEJ1CF3024B
VOLUME JOG
Z901
R908
R916
100K
100K
G
VDD
2
3
R924
R925
1
2
3
100K
100K
C901
C900
100P
100P
D906
B3AAA0000487
R915
(STANDBY LED)
680
TO
MAIN CIRCUIT
(CN901B) ON
SCHEMATIC DIAGRAM-3
8 9
10
11
2
3
4
5
6
7
12
23 22 21
28
27
26
25 24
20
SEG13
SEG14
18
SEG15
17
SEG16
IC900
SEG17
16
15
-YP
FL DRIVER IC
14
SEG18
13
SEG19
12
SEG20
11
3 4 5 6
7 8 9
10
C908
220P
C907
C904
220P
C906
220P
10V22
C905
220P
L901
3.3uH
R909
R910
R911
1K
1K
1.2K
R900
R901
R902
1K
1K
1.2K
57
TO
TRANSFORMER
CIRCUIT (CN900B) ON
SCHEMATIC DIAGRAM-11
WH900A/
JW900A
1
2
3
4
L905
100uH
FL1
FL2
D900
B0BC6R700006
-VP
C909
50V22
-VP
C912
C903
50V22
0.1
C913
0.01
R912
R913
R914
1.8K
2.2K
2.7K
R903
R904
R905
R906
1.8K
2.2K
2.7K
4.7K
SA-PM21PC

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