Sony HCD-GNX88, Service Manual

Page: 28 / 82

HCD-GNX88
28 28
HCD-GNX88
7-3. BLOCK DIAGRAM – TAPE SECTION –
ST-L
E
MAIN
SECTION
(Page 29)
REC-OUT-L
D
MAIN
SECTION
(Page 29)
TC BLOCK
32
A TRIG
DRIVE
: PLAYBACK (DECK B)
: PLAYBACK (DECK A)
R-CH
FM/AM TUNER UNIT
CN509
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
APLAY
BPLAY
B SHUT
A SHUT
REC(FWD)
REC(REV)
CAPM-CONT
B-TRIG
A-TRIG
TC-RELAY
A-HALF
B-HALF
A-PLAY
B-PLAY
BSHUT
ASHUT
REC BIAS
PB-A/B
ALC
REC-MUTE
TC-MUTE/IO-EXP DATA OUT
AM
EQ OUT1 A
B
TUNED
MC DOUT(ST)
MC DIN(ST)
ST-CLK
ST-CE
34
28 27 26
24 21
56
59
58
67
65
90
89
51
47
94
48
95
91
83
50
49
57
53
B TRIG
DRIVE
55
CAP MOTOR
DRIVE
54
88
86
84
87
85
13 11 15 14
PB OUT1
TAI1
REC IN1
AIN1
BIN1
A/B ALC ON/OFF REC MUTE ON/OFF MUTE ON/OFF
DECK A/B SELECT
PB/REC EQUALIZER AMP
IC301
Q340, 343
Q342, 345
Q341,344
SYSTEM CONTROL
(CD/TAPE MECHANISM CONTROL)
IC401(2/5)
REC-OUT1
EQ
TC-PB-L
TEST
CONNECTOR
CN510
R-CH
R-CH
R
L
C
MAIN
SECTION
(Page 29)
MUTE
Q280
MUTE DRIVE
Q542, 543
PB
HEAD
DECK-A
DECK-B
BIAS OSC
Q370
BIAS
TRAP
SWITCH
DRIVE
Q377, 379
SWITCH
DRIVE
Q382, 383
R-CH
R-CH
Q376
Q373, 374
Q381
L – CH
R – CH
R-CH
C174, L104
BIAS+9V
REC/PB
HEAD
ERASE
HEAD
Q378,380
T301
L – CH
R – CH
: TUNER (FM/AM)
: RECORD
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
CN102
SW VOL IN
SW AD KEY
SYSTEM
CONTROL
SW ON LED
SW LED2
SW LED1
SW VOL
AD-KEY
LED-SW-ON
LED CTRL2
LED CTRL1
2
1
3
4
5