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18.6. Transformer Circuit, Headphone Circuit and Speaker Terminal Circuit
SCHEMATIC DIAGRAM-11
TRANSFORMER CIRCUIT
2SB0621AHA
-VP VOLTAGE REGULATOR
CN900B
TO
GND2
1
PANEL CIRCUIT
-VP
2
(WH900A/
FL1
JW900A) ON
3
FL2
SCHEMATIC
4
DIAGRAM-7
Q603
C610
0.01
C611
100V10
Q601
C605
25V47
Q602
Q602
KRC102MTA
SWITCH
TO
MAIN CIRCUIT
(CN803B) ON
SCHEMATIC
DIAGRAM-5
CN803A
9
8
7
6
9
8
7
6
CN503A
TO
POWER CIRCUIT
(CN503B) ON
SCHEMATIC
DIAGRAM-10
TO
POWER CIRCUIT
(WH505A/JW505A) ON
SCHEMATIC DIAGRAM-10
1
2
Q603
R608
D609
C612
12
B0EAKM000117
50V100
R611
3.3K
C609
50V100
D611
R601
B0EAKM000122
22
Q601
2SC3940ARA
D603,D604,D605,D606
B0EAKM000117
REGULATOR SYS6V
C604
R603
C601
0.01
820
0.01
R605
150
D608
R607
B0AACK000004
10K
R606
10K
TO
MAIN CIRCUIT
(CN808B) ON
SCHEMATIC
DIAGRAM-5
CN808A
5
4
3
2
1
13
12 11 10
9
8
5
4
3
2
1
12 11 10
13
9
8
CN508A
TO
POWER CIRCUIT
(CN508B) ON
SCHEMATIC
DIAGRAM-10
: - B SIGNAL LINE
: +B SIGNAL LINE
CN505B
3
4
5
6
7
8
T601
G4C6ADD00006
16
15
14
12
11
10
Q600
B1AACF000063
PCONT SWITCH
Q600
4
R604
4.7K
R600
3
47K
T600
G4C2AAD00004
WH504B/
JW504B
HP_SW
TO
1
HP_L
MAIN CIRCUIT
2
(CN504A) ON
HP_GND
3
SCHEMATIC
HP_R
4
DIAGRAM-5
6
4
3
1
7
5
2
C371
0.1
E301
4
7
6
5
3
2
1
1 2 3 4
5
6
CN501B
TO
POWER CIRCUIT
(CN501A) ON
SCHEMATIC
DIAGRAM-10
61
: MAIN SIGNAL LINE
2
R609
3.3M
3
5
1
RL600
K6B1ADA00011
2
F1
125V
1.6A
JK600
4
3
FC601 FC600
1
2
L600
Z600
G0B371HA0005
ERZVA5Z471
HEADPHONE CIRCUIT
JK900
1
7
6
R230
C230
3
100K
0.01
2
4
5
R430
C430
100K
0.01
JK502
+
Lch
HIGH CH SPEAKER
+
Rch
-
Lch
+
LOW CH SPEAKER
-
Rch
+
JK501
SPEAKER
7
8
TERMINAL
CIRCUIT
SA-PM21PC
AC IN
120V / 60 Hz
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