Schematic Diagram - Main Board (2/4) - Sony HCD-GX8000 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
7-14. SCHEMATIC DIAGRAM – MAIN Board (2/4) –
(2/4)
A1
A2
A3
A4
A5
T E
L 1 3 9 4 2 2 9 6 5 1 3
(Page 34)
Q504
FN1F4M
MUTING
CONTROL
SWITCH
A6
Q505
FA1A4M
R508
MUTING
15k
CONTROL
SWITCH
A7
A8
C504
1
50V
w w w
.
http://www.xiaoyu163.com
JW815
R861 R864
1k 1k
C861 R862
47 10k
R863 R865 50V
100k 100k
Q861
R814
FN1F4M
1k
MUTING
CONTROL
SWITCH
R510
470k
R501
68k
x a o u 1 6 3
y
i
http://www.xiaoyu163.com
8
R921
Q891
47 C892
2SB1116
1W 0.1
JW813
R891
10k
R893
Q891,892
2.2k
FAN MOTOR
DRIVE
Q892
2SC2603
C783
0.1
Q Q
3 7 6 3 1
R819 C813
680 4.7
2W 100V
R869 C863
680 4.7
88
2W 100V
87
R892
Q862 R866 4.7k
ZZ1
2SC3661 56
HEADPHONE ZZ2
MUTING
ZZ3
Q812 R816
2SC3661 56
HEADPHONE
MUTING
(Page 37)
.
35 35
2 4
9 9 8
CN891
3P
FAN-
M891
FAN+
(FAN)
CN781
10P
GM(A)-R
GM(A)-GND
GM(A)-L
MIC-AGND
MIC-SIG
A+10V
HP-R
(Page 39)
HP-GND
HP-L
HEADPHONE CONTROL
CN901
13P
5 SW PROTECT 1 5 0 8 9 2 4 9
POWER-GND
POWER-GND
HP-L
HP-R
-B
SP PROTECT IN
FAN DET
FRONT RELAY
(Page 41)
DBFB FEEDBACK
R-IN
A-GND
L-IN
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
m
no mark : TUNER (FM/AM)
c o The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
HCD-GX8000/RG77
2
9 9
8 2 9 9