Panasonic SA-DK3 Service Manual page 162

SCHEMATIC DIAGRAM-24
To TUNER UNIT
on SCHEMATIC DIAGRAM-13
11 10 9 8 7 6
R257
2.2K
D
R258
2.2K
C
R239
2.2K
B
R240
2.2K
A
X451
(8MHz)
2
IC451
M38504M6209F
SYSTEM CONTROL
:POSITIVE VOLTAGE LINE
:NEGATIVE VOLTAGE LINE
D
To MECHANISM CONTROL CIRCUIT
(H1100) on SCHEMATIC DIAGRAM-17
5 4 3 2 1 10 9 8 7 6 5 4 3 2
CP201
14.9V
9.1V
R234
Q R
A
4.7K
B
C
D
R489
220
3
R460
680
1
2.2V 1.9V 4.9V 5V
21 20 19 18 17 16 15
1.9V
1.9V
P-P
P-P
F=8MHz
F=8MHz
22 23 24 25 26 27 28
0V 0V 5V 0.1V
R483
4.7K
K A B
:FM SIGNAL LINE
:AM SIGNAL LINE
:SUB WOOFER/FRONT LOW SP DRIVE SIGNAL LINE
J
To FL CIRCUIT(CN601) on SCHEMATIC DIAGRAM-20
1 30 29 28 27 26 25 24 23 22 21 20 19 18
CN100
7.7V
D
A
C
B
S T U
C D A D C E F B
(2.2V)
0V 2.9V 0.4V 0.4V 2V 2V 1.7V
14 13 12 11 10 9 8 7 6
29 30 31 32 33 34 35 36 37
0V 0V 5V 5V 5V 0V 4.2V 2.5V
D E F H J I G E F
-7.6V
7.7V
9.1V
7.7V
14.9V
:AUDIO SIGNAL LINE
:TAPE PLAYBACK SIGNAL LINE
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2
F E D C B A
V W X P M
A B
(0V)
5V 5V 5V 5V
5 4 3 2 1
38 39 40 41 42
3.6V 0V 5V 0V 0.4V
R466
10K
C458
0.1
R461 4.7K
R462 47K
R463 4.7K
R465 4.7K
R481 4.7K L452
10
R495 4.7K
G C
1
CN603A
A
B
C
D
E
F
H