Block Diagram - Main Section - Sony HCD-GTR33 Service Manual

HCD-GTR33/GTR55/GTR77
6-2.

BLOCK DIAGRAM - MAIN Section -

J700
MIC
J120
L
PC IN
R-CH
R
L-OUT
(Page 15) A
(E4)
TAPE DECK S501
L-CH
R-CH R-CH
L501
EH
BIAS OSC
Q501, 502
VREF
SW
ANTENNA
TUNER (FM/AM)
FM75
FM ANT ST-L
COAXIAL
ST-R R-CH
AM AM ANT
ST-DOUT
ST-DIN
ST-CLK
ST-CE
TUNED
HCD-GTR33/GTR55/GTR77
IC700 MIC AMP
5 7 3 1 46 MIC
RV700
MIC LEVEL
42
44 CD-L
OP AMP
IC501
5 7 45 TAPE L
54 TAPE R
R-CH
OP AMP
IC502
7 5 36 REC BL
R-CH 7 REC BR
MUTE MUTE
SW SW
Q682 Q683
43 ST-L
R-CH 56 ST-R
70 66 41
67 ST-DOUT
65 ST-DIN
66 ST-CLK
63 ST-CE
61 ST-TUNED
INPUT SELECTOR,
ELECTRICAL VOLUME
IC407
TONEOUTL 30
AUX-L
21 22
60 59
SYSTEM CONTROLLER
IC401 (2/4)
16 16
RECAL 37
29 VOLINL OUTL 26
SWOUT 23
D630
BASS AGC
BB1L 28
Q128
BB2L 27
19 R-CH
BASS AGC
18
Q178
17
9
BAND-PASS
FILTER
Q115
R-ch is omitted due to same as L-ch.
SIGNAL PATH
89 71
Abbreviation
E4 : African model
X-IN 15
X402
8MHz
X-OUT 13
XC-IN 10
X401
32.768kHz
XC-OUT 11
HP DET
J (Page 17)
REC-L
B (Page 15)
OUT
D (Page 17)
SW OUT
E (Page 17)
BASS AGC
F (Page 17)
: AUDIO
: TUNER (FM/AM)
: MIC
: TAPE (PLAY)
: TAPE (REC)