Block Diagram - Main Section (1/2) - Sony HCD-GRX9000 Service Manual

HCD-GRX9000/RX900
7-4. BLOCK DIAGRAM – MAIN Section (1/2) –
J751
MIX MIC
MIC AMP
IC750 (1/2)
RV750
MIC LEVEL
CD-L
(Page 24) C
IN B2
68
PB-L
IN C2
D
(Page 26) 67
INPUT
IN A2
69 SELECT
IN D2
66
J101 (1/2)
MD/VIDEO (AUDIO) IN
L R-CH
R R-CH
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
(HCD-RX900)
(Page 22)
ST-L
A
ANTENNA FM/AM TUNER UNIT
FM 75Ω
FM ANT ST-L
FM ANT ST-R R-CH
AM ANT ST-MUTE
STEREO
AM ANT
TUNED
AM
ST-DIN
ST-DOUT
ST-CLK
ST-CE
(HCD-GRX9000)
ST-MUTE
B
STEREO
(Page 22) TUNED
ST-DOUT
ST-DIN
ST-CLK
ST-CE
(HCD-RX900)
68 65 66 67 69 70 72
05
MIC AMP
IC750 (2/2)
2 58
REC REC
A2
GRAPHIC
SOUND EQUALIZER
+
CONTROL CONTROL
CIRCUIT CIRCUIT
+
R-CH
IC101
60 5 75
SPEANA
J
(Page 31)
DATA, CLK
K
(Page 31)
POWER
(Page 32) L
CD-POWER
M
(Page 32)
X501 X502
5MHz 32.768kHz
10 11 13 14
SYSTEM CONTROLLER
IC501 (3/3)
– 27 –
R-CH
LINE AMP
+
IC191
57 40
B2
VOL
BASS BOOST
F OUT2 IN2 OUT2
VOLUME
42 41 CONTROL
CONTROL
CIRCUIT
CPU
COMMAND
INTERFACE
33 32 34 38, 39
FEED BACK SWITCH
+
DBFB CONTROL
SPEANA R-CH
SWITCH
MIXING AMP
Q111
IC102
R-CH
52 51 3
46 5 55 56 2
L J101 (2/2)
MD/VIDEO
(AUDIO) OUT
R-CH R
• SIGNAL PATH
J191
SUPER WOOFER
MUTING
Q191
BUF
36
MUTING
Q113
R-CH
Q112
FEED-BACK
MUTING CONTROL
SWITCH
Q571, 572
+5V
RESET SIGNAL
GENERATOR
IC502
RESET
SWITCH
Q501
1 16 15
STK-MUTE 100
F-RELAY 6
– 28 –
REC-L
E (Page 26)
: CD PLAY
: TAPE PLAY
: RECORD
: TUNER (FM/AM)
: MIC IN
L-CH
F
(Page 29)
G (Page 29)
RESET
N
(Page 31)
STK-MUTE
H
(Page 29)
RELAY
I
(Page 30)