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