Block Diagram - Amp Section - Sony HCD-GTX999 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-4.

BLOCK DIAGRAM - AMP Section -

BASS AGC
(Page 18) H
OUT
(Page 18) F
MUTING
Q130
R-CH
SW OUT
(Page 18) G
T E
L 1 3 9 4 2 2 9 6 5 1 3
MUTING
Q220
MUTING
CONTROL
Q221
100
w w w
HCD-GTX999
OVER LOAD OVER LOAD
+
DETECT DETECT
Q512 Q556
POWER
AMP
IC501
D545
+
R-CH
OVER LOAD
DETECT
Q525
STANDBY SWITCH
Q501
90
SYSTEM CONTROLLER
IC201 (4/5)
x a o
y
. i
http://www.xiaoyu163.com
+
R-CH
–1
–2
TH501 R-CH
RY501
TEMPERATURE
DETECT
Q550, 551
PROTECT
+
DETECT
Q545, 546, 557
Q Q
3 7 6
RELAY
DRIVE
Q570
87 89 92
u 1 6 3
.
19 19
2 4
8 9 9
J861
R-CH
PHONES
TB501
+
L
–
FRONT SPEAKER
ONLY FOR
–
SS-GTX999
R
+
FAN MOTOR
M002
M
DRIVE
(FAN)
Q015 – 017
FAN MOTOR
DETECT
Q019
TB502
+
SUBWOOFER
3 1 5 1 5 0 8 9 2
ONLY FOR
–
SS-WG999
RY502
RELAY
DRIVE
Q576
91
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: TUNER (FM/AM)
m
c o
HCD-GTX999
2
8 9 9
4 9 8 2 9 9