Technics ST-HD501

JK401
JK402
Lch OUT
A.GND
Rch OUT
MUTE
POWER
+B(13V )
LED CNT
CT
D.GND
B( 13V)
+B(15V)
+B(10V)
KEY SE
JOG A
JOG B
+B(5.6V)
B( 30V)
FL1
FL2
SYNC
+B(13V)
+B(10V)
A.GND
Lch IN
Rch IN
Lch IN
Rch OUT
Lch OUT
Rch IN
CD REQ
M.GND
D.GND
CS
SCLK
DATA
TAPE REQ
SYNC
CK SPD
NC
(D.GND)
TP304
(CT)
TP303
CB
TP311
(A.GND)
TP302
Q401
2SD2137PQTA
REGULATOR
Q402
2SB1417PQTA
REGULATOR
D
Q
P
O
N
M
L
K
J
I
H
G
F
E
B
C
R
S
T
U
V
W
X
Y
Z
A
b
a
TP305
TP310
TP309
TP308
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
20
17
18
19
R401
1/4W4.7
C407
16V100
C405
10V47
C401
25V100
D483
MA719TA
D484
MA719TA
R403
1K
C403
0.01
C408
16V100
D401
MA4075HTA
D402
MA4075HTA
C406
10V47
R404
1K
C404
0.01
C402
25V100
R402
1/4W4.7
C409 0.01
C482 0.1
R482 100
R350 2.7K
R349 2.7K
R354 4.7K
R353 4.7K
R346 1K
R345 1K
R347 10K R348 10K R351 8.2K R352 8.2K R355 10K R356 10K C353 100P C354 100P C357 100P C358 100P C355 100P C356 100P
R359 10K R360 10K R363 10K R364 10K C361 100P C362 100P C359 100P C360 100P
R358
1K
R357
1K
R362
4.7K
R361
4.7K
D482
MA719TA
D481
MA719TA
R481
100
C481
1
F
A
E301
SCHEMATIC DIAGRAM 9
MAIN CIRCUIT
C483 0.047
C484 0.047
To AMPLIFIER
POWER SUPPLY
CIRCUIT
To CD PLAYER
MAIN CIRCUIT/
CASSETTE DECK
MAIN CIRCUIT
L541 10 H
L542 10
H
:AM SIGNAL LINE
:FM SIGNAL LINE:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
5.6V
14.3V7.2V
7.8V
15.4V7.2V
7.8V
15V