Block Diagram - Tuner/Tape Deck Section - Sony HCD-GN77D Service Manual

HCD-GN77D
Q Q
3 7 6 3 1 5 1 5 0
– TUNER/TAPE DECK Section –
DECK-A
L – CH
PB
HEAD
R – CH
R-CH
DECK-B
L – CH
REC/PB
HEAD
R – CH
R-CH
C332, 333
BIAS
TRAP
RV304
REC
BIAS(L)
R-CH
T301
ERASE
HEAD
T E
L 1 3 9 4 2 2 9 6 5 1 3
TC BLOCK
REC(REV)
REC(FWD)
BSHUT
ASHUT
BPLAY
APLAY
BHALF
AHALF
ATRGM+
BTRGM+
CAP M+
CN304
FM/AM TUNER UNIT
ST-L
FM ANT
ST-R
FM 75Ω
COAXIAL
ST-MUTE
w w w
STEREO
TUNED
AM ANT
ST-DOUT/MC-DIN
AM
ST-DIN/MC-DOUT
AM ANT
ST-CLK
ST-CE
ANTENNA
AIN1
32
A
B
34
BIN1
REC/PB SWITCH
IC302
SWR1
1
GND
2
BUFFER
4
Q304,305
3
SWP1 R-CH
REC-OUT1
21
TC A+9V
BIAS OSC
Q307,310
Q302, 303
RIPPLE
FILTER
Q301
Q391, 392
A TRIG
DRIVE
Q395, 396
B TRIG
DRIVE
Q393,394
CAP MOTOR
DRIVE
TUNER L – CH
MAIN
F
SECTION
(Page 29)
R-CH
x a o
. i
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IC303
+
HPF
R-CH
MUTE
Q306,389
93
EQ OUT1
PB OUT1
TAI1
28 27
120
DECK A/B SELECT
PB/REC EQUALIZER AMP
IC301
REC IN1
EQ
13 12 11 15 14
Q Q
3 7 6
u 1 6 3
y
28 28
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2 4
8 9 9
AMS DETECT
Q390, 398, 399
MAIN
TAPE L-CH
E
26 SECTION
(Page 29)
CN301
L
TEST
CONNECTOR
R-CH R
RV301
REC(L)
LEVEL
MAIN
REC L-CH
G SECTION
24
(Page 29)
SYSTEM CONTROL
(CD/TAPE MECHANISM CONTROL)
IC501(2/5)
63 AMS-IN
52
3 1 5 1 TC-MUTE 5 0 8 9
51 REC-MUTE
54 ALC
65 EQ-H/N
53 PB-A/B
REC BIAS
56
B REC, REV
60
A REC, FWD
66
90 B-SHUT
89 A-SHUT
61 B-PLAY
69 A-PLAY
91 B-HALF
67 A-HALF
55 TC-RELAY
59
A-TRIG
58 B-TRIG
57 CAPM-CTRL
100 ST-MUTE m
1 STEREO
TUNED
2
c o
65 ST-DIN
.
88 ST-DOUT
97 ST-CLK
87 ST-CE
2
8 9 9
2 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