Block Diagram - Amp Section; Block Diagram; Tel 13942296513 - Sony HCD-GT444 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
7-3.

BLOCK DIAGRAM - AMP Section -

F
BASS AGC
(Page 24)
LINE AMP
D
OUT
IC252
(Page 24)
MUTING
Q402
R-CH
T E
L 1 3 9 4 2 2 9 6 5 1 3
LINE AMP
E
SW OUT
IC253
(Page 24)
MUTING
Q430
(GT444/GT555)
STANDBY SWITCH
MUTING
CONTROL
Q670
58
w w w
HCD-GT111/GT222/GT444/GT555
+
OVER LOAD OVER LOAD
+
DETECT DETECT
POWER
Q801 Q803
AMP
IC800
D807 PROTECT
+
R-CH DETECT
Q806, 809 -811
DC DETECT
Q812, 814, 815
OVER LOAD
DETECT
Q802
Q813
51
SYSTEM CONTROLLER
IC401 (3/4)
x a o
y
. i
http://www.xiaoyu163.com
R-CH
R-CH
RY800
R-CH
D632
Q Q
3 7 6
RY890
RELAY RELAY
DRIVE DRIVE
Q804 Q805
50 53 52
u 1 6 3
.
25 25
2 4
8 9 9
HP IN C
(Page 24)
J702
R-CH
PHONES
JK800
+
L
–
FRONT
– SPEAKER
R
+
FAN MOTOR
DRIVE
M102
M
Q690, 691,
(FAN)
Q693 -695,
Q697
STBY LED J
(Page 26)
G
PROTECT
(Page 26)
LEVEL SHIFT
Q447
H
DC DETECT
(Page 26)
3 1 5 1 5 0 8 9 2
(GT222/GT444/GT555)
FAN MOTOR
M M101
DRIVE
(FAN)
Q110 - 113
JK890
+
SUBWOOFER
–
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: TUNER (FM/AM)
m
c o
HCD-GT111/GT222/GT444/GT555
2
8 9 9
4 9 8 2 9 9