Block Diagram - Tape/Tuner Section - Sony HCD-GNX780 Service Manual

HCD-GNX780/GNX880
Ver. 1.1
7-2. BLOCK DIAGRAM – TAPE/TUNER SECTION –
DECK-A
L – CH
PB
HEAD
R – CH
R-CH
DECK-B
Q376
Q373, 374
L – CH
REC/PB
HEAD
R – CH
R-CH
R-CH
ERASE
HEAD
TAPE
MECHANISM
DECK
REC(FWD)
B SHUT
A SHUT
BHALF
AHALF
ATRGM+
BTRGM+
CAP M+
CN509
FM/AM TUNER UNIT
FM ANT
FM 75
COAXIAL
AM ANT
AM
ST-DOUT
AM ANT
ANTENNA
HCD-GNX780/GNX880
32
34
SWITCH
DRIVE
Q382, 383
Q381
SWITCH
DRIVE
Q377, 379
C380, L371
BIAS
21
TRAP
T301
BIAS+9V
BIAS OSC
Q378,380
Q370
A TRIG
DRIVE
Q340, 343
B TRIG
DRIVE
Q342, 345
CAP MOTOR
DRIVE
Q341, 344
ST-L
MAIN
E
ST-L
SECTION
(Page 29)
ST-R R-CH
TUNED
ST-DIN
ST-CLK
ST-CE
AIN1
A EQ OUT1
PB OUT1
TAI1
28 27
B
BIN1
IC301
DECK A/B SELECT,
PB/REC EQUALIZER AMP
REC-OUT1
REC IN1
EQ
13 11 15 14
28 28
TC-PB-L
MAIN
C
26
SECTION
(Page 29)
CN510
L
TEST
CONNECTOR
R-CH R
REC-OUT-L
MAIN
D
24
SECTION
(Page 29)
IC401(2/5)
SYSTEM CONTROL
(CD/TAPE MECHANISM CONTROL)
65
TC-MUTE/IO-EXP DATA OUT
67 REC-MUTE
CN102
58 ALC
3
95 SW VOL
SW VOL
59 PB-A/B
4
SW LED 83 LED-SW-ON
56 REC BIAS
90
BSHUT
ASHUT
89
94 B-HALF
48 A-HALF
57
TC-RELAY
53
A-TRIG
55 B-TRIG
54 CAPM-CONT
88 TUNED
87 MC DOUT(ST)
85 MC DIN(ST)
86 ST-CLK
84 ST-CE
GNX880
SYSTEM
CONTROL
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
: TUNER (FM/AM)
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD