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HCD-GRX70/GRX70J/RXD80
Q Q
7-12. PRINTED WIRING BOARD – LEAF SW Board – •
3 7 6 3 1 5 1 5 0
4
3
1
2
(DECK A PLAY)
05
7-13. SCHEMATIC DIAGRAM – LEAF SW Board –
(CAPSTAN)
T E
L
1 3 9 4 2 2 9 6 5 1 3
DECK B
DECK A
PLUNGER
PLUNGER
(DECK A 120/70)
(DECK A HALF)
(DECK A REC)
(DECK B HALF)
(DECK B REC)
(DECK B 120/70)
w w w
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : TAPE PLAY
(
) : RECORD
∗
: Impossible to measure
See page 28 for Circuit Boards Location.
DECK A
(
)
PLUNGER
(DECK A 120/70)
(DECK A REC)
(DECK A HALF)
E
(Page 43)
CONTROL SWITCH
ROTATION DETECT SENSOR
(DECK A)
ROTATION DETECT
SENSOR (DECK B)
(DECK A PLAY)
(DECK B PLAY)
x
a o
y
.
i
– 41 –
http://www.xiaoyu163.com
8
DECK B
PLUNGER
4
3
(DECK B PLAY)
1
2
(DECK B 120/70)
(DECK B HALF)
21
21
Q
Q
3
7
6
3
E
(Page 49)
u 1 6 3
.
http://www.xiaoyu163.com
2
4
9
9
8
• Semiconductor Location
Ref. No. Location
D141
D191
D331
D333
D334
D335
D401
D403
D405
D406
D407
D411
D501
D502
D503
D504
D505
D506
D509
D607
D644
D801
D802
D803
D831
D832
D851
D852
D881
D901
D902
D903
D904
D905
1
5
1
5
0
8
9
2
4
D906
D907
D908
D909
D910
D915
D921
D922
D923
D924
D925
IC101
IC301
IC381
IC501
IC502
IC801
IC901
IC902
IC903
Q111
Q112
m
c o
– 42 –
2
9
9
Ref. No. Location
Q113
E-9
E-10
E-12
Q161
C-9
E-1
Q162
C-9
Q163
E-9
F-1
E-1
Q191
E-12
F-1
Q192
E-10
Q201
D-9
G-11
F-12
Q251
C-9
H-6
Q331
C-1
Q332
C-2
J-4
I-2
Q333
C-2
Q334
C-2
G-3
D-7
Q335
D-1
E-6
Q336
F-1
Q337
F-1
D-6
D-7
Q338
F-1
D-7
Q339
F-1
Q340
E-1
D-7
F-2
Q341
E-1
E-5
Q342
F-1
Q343
E-1
C-8
J-11
Q401
F-12
G-9
Q402
E-12
G-11
Q411
G-2
I-6
Q412
G-3
Q431
G-12
J-7
J-10
Q432
G-11
G-9
Q433
F-11
Q434
F-11
H-9
J-4
Q435
F-11
J-4
Q436
F-11
Q437
G-12
J-4
I-4
Q439
F-12
I-1
Q471
F-2
9
8
2
9
9
Q501
D-7
H-1
J-5
Q508
D-7
I-5
Q509
E-7
J-5
Q801
H-10
J-5
Q803
G-10
Q804
G-9
I-4
H-4
Q831
G-10
G-4
Q832
G-10
Q851
J-10
G-4
F-2
Q881
I-9
G-4
Q901
H-2
Q902
I-1
C-10
Q903
H-1
B-3
Q904
G-4
Q905
G-4
A-12
D-5
Q907
G-5
Q908
G-4
D-7
H-10
Q909
I-4
G-6
Q913
H-1
Q914
G-2
G-4
H-4
Q923
H-1
Q951
G-2
Q952
H-1
D-10
D-10
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