Sony HCD-GTR88 - Block Diagram - AMP Section

HCD-GTR88
HCD-GTR88
1919
6-3. BLOCK DIAGRAM - AMP Section -
R
L
SW PREAMP
IC255
75
SW PREAMP
IC254
75
SW PREAMP
IC253
75
FR PREAMP
IC252
POWER
AMP
IC1300
IC800
AMP
POWER
MUTING
Q270
OVER LOAD
DETECT
Q1301
OVER LOAD
DETECT
Q1300
OVER LOAD
DETECT
Q850
OVER LOAD
DETECT
Q800
R-CH
MUTING
Q245
MUTING
CONTROL
Q290
MUTE
Q1309, Q1308
LINE MUTE
63
STK MUTE
PROTECT
CONTROL
FAN HIGH SPEED
60
16
15
11
6 4
18 11
SW SPK RELAY
48
FAN MOTOR
DRIVE
Q602
RY1300
+
– –
+
RY862
D1036
TH1301
M
M101
(DC FAN)
M
M101
(DC FAN)
PHONES
SUBWOOFER
RELAY
DRIVE
Q031
FR SPK RELAY
43
RELAY
DRIVER
Q032
FAN SW
Q600
R-CH
J702
SYSTEM CONTROLLER
IC401 (3/4)
: AUDIO
SIGNAL PATH
R-CH is omitted due to same as L-CH.
DC
DETECT
Q1302, Q1303
THERMAL
DETECTOR
Q1305, Q1307
R
L
FRONT
SPEAKER
TB1300
+
– –
+
R
L
SATELLITE
SPEAKER
TB1301
59
BASS AGC HP DET OUT
SW OUT
RELAY
DRIVER
Q030
MUTING
Q220
14 8
C
(Page 18)
F
(Page 18)
D
(Page 18)
E
(Page 18)
+
–
+
–
TB801
H
61
13
MUTING
Q295
PROTECT
DETECT
Q1304, 1306
(Page 20)
R-CH
R-CH
R-CH
R-CH
R-CH
RELAY
DRIVER
Q033