Block Diagram - Main Section - Sony HCD-GRX5 Service Manual

7-3. BLOCK DIAGRAM – MAIN Section –
J751
MIX MIC
MIC AMP
IC750 (1/2)
RV750
MIC LEVEL
CD-L
A
(Page 20)
IN B2
68
PB-L
IN C2
B
67
IN A2
69
(Page 22) IN D2
66
L
R R-CH
J101 (1/2)
MD/VIDEO
(AUDIO) IN
ANTENNA FM/AM TUNER UNIT
FM 75
FM ANT ST-L
ST-R R-CH
FM ANT
AM ANT
ST-MUTE
STEREO
AM ANT
TUNED
AM
ST-DIN
ST-DOUT
ST-CLK
ST-CE
68 65 66 67 69 70 72
05
MIC AMP
IC750 (2/2)
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
2 58
REC
A2
INPUT
GRAPHIC
SELECT
SOUND EQUALIZER
+
CONTROL CONTROL
CIRCUIT
R-CH
+
R-CH
CPU
COMMAND
INTERFACE
33 32 34 60 5 75
SPEANA
D
(Page 25)
DATA, CLK
F
(Page 25)
POWER
(Page 26) G
CD-POWER
H
(Page 26)
52 51 3
– 23 –
R-CH
LINE AMP
+
IC191
57 40
REC
B2
VOL
BASS BOOST
F OUT2 IN2
VOLUME
42 41 CONTROL
CONTROL
CIRCUIT
CIRCUIT
38, 39
+
DBFB CONTROL
SPEANA
SWITCH
MIXING AMP
Q111
IC102
R-CH
46 5 55 56 2
SYSTEM CONTROLLER
IC501 (3/3)
(Page 22)
• SIGNAL PATH
REC-L
C
L J101 (2/2)
MD/VIDEO
(AUDIO) OUT
R-CH
R
J191
SUPER WOOFER
MUTING
Q191
BUF
OUT2
POWER AMP
36
IC801
MUTING
Q113 R-CH
R-CH
MUTING CONTROL
SWITCH
Q575
OVER LOAD
DETECT
Q801
FEED BACK SWITCH
Q112
D141
+
R-CH
R-CH
D843
+
R-CH
DC DETECT
+
SWITCH
Q433, 434
R-CH
MUTING CONTROL
SWITCH
Q571, 572
X501 X502
5MHz 32.768kHz
10 11 13 14 100 1 16
– 24 –
HCD-GRX5/RX66
: CD PLAY
: TAPE PLAY
: RECORD
: TUNER (FM/AM)
: MIC INPUT
J421
PHONES
-1
+
L
–
-2
+
R
–
TM401
RY401
SPEAKER
IMPEDANCE
USE 6 – 16
RELAY
DRIVE
Q431
PROTECTOR
Q435, 436
OVER LOAD
DETECT SWITCH
Q432, 437
+5V
RESET SIGNAL
GENERATOR
IC502
RESET
E
(Page 25)
RESET
SWITCH
Q501
15 6