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Q Q
3 7 6 3 1 5 1 5 0
7-2. BLOCK DIAGRAM
– TAPE/TUNER SECTION –
DECK-A
L – CH
PB
HEAD
R – CH
R-CH
Q166
DECK-B
L – CH
REC/PB
HEAD
Q154, 155
R – CH
R-CH
R-CH
ERASE
HEAD
TAPE
MECHANISM
T E
L
1 3 9 4 2 2 9 6 5 1 3
DECK
REC(FWD)
B SHUT
A SHUT
BHALF
AHALF
ATRGM+
BTRGM+
CAP M+
CN101
FM/AM TUNER UNIT
FM ANT
FM 75
COAXIAL
TUNED
AM ANT
w w w
ST-DIN
AM
ST-DOUT
AM ANT
ST-CLK
ST-CE
ANTENNA
HCD-GNX660
SWITCH DRIVE
Q110, 111
Q109
SWITCH DRIVE
Q107, 108
C174, L104
BIAS
TRAP
MUTE
Q175
R-CH
T101
BIAS+9V
TC REC
BIAS OSC
MUTE DRIVE
Q101
Q301, 302
Q113,114
A TRIG
DRIVE
Q122, 123
B TRIG
DRIVE
Q118, 119
CAP MOTOR
DRIVE
Q120, 121
ST-L
MAIN
E
ST-L
SECTION
(Page
)
28
ST-R
R-CH
x
a o
y
.
i
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AIN1
75
A
EQ OUT1
TAI1
78
79
B
76
BIN1
IC101(1/2)
DECK A/B SELECT,
PB/REC EQUALIZER AMP
REC-OUT1
17
EQ
Q
Q
3
7
6
17
A-TRIG
TC-MUTE
5
19
B-TRIG
IC403(1/2)
SIGNAL IN/OUT CONTROL
LATCH
4
18
CAPM-CNT
CLK
3
RESET
2
21
TC-RELAY
DI1
26
7
REC-MUTE
20
REC BIAS
u 1 6 3
.
27
27
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8
9
2
4
9
TC-PB-L
PB OUT1
80
CN111
MUTE
1
Q103
L
R-CH
TEST
CONNECTOR
R-CH
R
3
MUTE DRIVE
Q303, 304
REC-OUT-L
REC IN1
15
IC401(2/5)
3
1
5
1
5
0
8
9
2
SYSTEM CONTROL
(CD/TAPE MECHANISM CONTROL)
90
B SHUT
89
A SHUT
91
B-HALF
63
A-HALF
70 IO-EXP-LAT
69 IO-EXP-CLK
68 IO-EXP-RST
66 IO-EXP-DATA-OUT
TUNED
40
m
39
ST-DIN
37
ST-DOUT
c o
38
ST-CLK
36
ST-CE
HCD-GNX660
Ver. 1.2
8
2
9
9
MAIN
C
SECTION
(Page 28)
MAIN
D
SECTION
(Page
28
)
4
9
8
2
9
9
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
: TUNER (FM/AM)
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD
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