Block Diagram -Audio Section - Sony HCD-GZR9D Service Manual

HCD-GZR7D/GZR8D/GZR9D
7-4. BLOCK DIAGRAM – AUDIO Section –
SW OUT
HP DET
SOUND
MAIN
E
SECTION
(Page 45)
FL OUT
TONE OUT L
RECA L
RECA L
FL
VIDEO
C SL
SECTION
SW
(Page 44)
FC
LT
• Signal Path
: AUDIO
HCD-GZR7D/GZR8D/GZR9D
GZR7D
GZR8D/GZR9D
ELECTRONIC VOLUME
IC201
15 SW IN
SW OUT 24
3 SL EXT IN
SL OUT 29
33 FL IN
SR OUT 26 R-CH
SL LPFIN
6
C OUT 25
LEE VOLIN
14
13 C LPF IN
L LPF OUT 38 CD-L
37 L LPFIN
FL OUT 34 DPL-L
17 18
GZR7D
SYSTEM CONTROL
O-VOL-IC-CLK
73
I-VOL-IC-DATA
78
S751
CLOSE OPEN
OPEN/CLOSE
DETECT
32 I-CDM-OPEN
RE701
DISC TRAY
56 I-CDM-ENC
ADDRESS
DETECT
O-SUR & CEN-SP-RELAY 23
IC731
Q731
TABLE
ADDRESS 33 I-CDM-TBL-ADR-SW
SENSOR
IC701
LOADING
LM-F
M751 4 7 36
MOTOR
(LOADING) LM-R
2 9 37
DRIVER
O-CDM
IC712
TABLE
M741 4 7 34 TM-F
MOTOR
(TABLE) 35 TM-R
2 9
DRIVER
GZR7D/GZR8D
SUBWOOFER PRE AMP
IC301
3 1
PRE DRIVER
IC401 (GZR9D)
IC402 (GZR7D/GZR8D)
15 IN Lch
R-CH 19 IN Rch
GZR9D
20 IN SW
STBY
17
SUBWOOFER
MUTE
+55V -55V
Q258,259
MUTE
Q489
MAIN
D
SECTION
(Page 45)
GZR8D/GZR9D
PRE DRIVER
IC501
11 SURR-L-IN
SURR-OUT-L+ 4
R-CH 15 SURR-R-IN SURR-OUT-R+ 6
16 CENT-IN
CENT OUT+ 19
STBY
13
IC401 (3/4)
MUTE
Q253,255
O-SW-AMUTE 4
MUTE
O-STK-MUTE 21
Q509
O-SURR-A-MUTE 2
MUTE
O-SW-SP-RESET 38
Q256,257
O-CENTER-A-MUTE 3
SURROUND/CENTER
SPEAKER RELAY
CONTROL
Q402
O-FRONT-SP-RELAY 25
O-FAN 48
O-DVD-POWER
DISPLAY/
F
POWER
SECTION
(Page 47)
PROTECT
PROTECT
Q401
46 46
R-CH
OUT CH1+ 8
OUT CH2+ 10 R-CH
OVERLOAD OVERLOAD
CONTROL
DET DET
OUT SW+ 22
Q441,443 Q481,482
+32V -32V
SUBWOOFER RELAY
DRIVER
CONTROL
Q403
TH441
THERMAL
PROTECT
DET
Q485-487
Q483,484
RELAY
CONTROL
Q480
R-CH
OVERLOAD
PROTECT
DETECT
Q504,505
Q506,507
+32V -32V
RELAY
DRIVER
Q501
RELAY+B
FRONT SPEAKER
FAN
UNREG15V RELAY SWITCH DRIVE
Q618,619 Q612
FAN
PROTECT
Q609-611
FAN
CONTROL
Q613,614
FRONT SPEAKER
RELAY SWITCH
Q615,617
FAN
CONTROL
Q605,606
POWER FAN
UNREG15V CONTROL DRIVE
Q607,608 Q604,616
FAN
DRIVE
Q601,603
GZR7D/GZR8D
J302
SUBWOOFER
OUT
J803
R-CH PHONES
JK402
4 +
L
3 –
FRONT
RELAY
SPEAKER
2 +
R-CH
R
Q488
RY441 1 –
GZR9D
+
SUBWOOFER
–
RELAY
JK401
Q490
RY442
D612
SUBWOOFER
LED
DRIVER LED+9V
Q607
JK501
+
4
L
3 –
SURROUND
SPEAKER
+
R-CH 2
R
RY541
–
1
+
6 CENTER
SPEAKER
–
5
RY542
+
FAN902
–
+
FAN901
–