Schematic Diagram - Main Board (2/4) - Sony HCD-RG88 Service Manual

7-14. SCHEMATIC DIAGRAM – MAIN Board (2/4) –
(2/4)
CN903
5P
SW-
SW-
JW901
IMAGINARY_GND
SW+ JW902
SW+
(Page 41)
A1
A2
A3
A4
A5
(Page 34)
Q504
FN1F4M
MUTING
CONTROL
SWITCH
A6
Q505
FA1A4M
R508
15k MUTING
CONTROL
SWITCH
A7
A8
C504
1
50V
RY801
-1
-2
R803
270
JW815
D801
1SS355
Q824
FA1L3Z
SUB WOOFER
PROTECT
RELAY
DRIVE
Q825
2SC1623
OVER LOAD
DETECT
SWITCH
R825
3.3k
R861 R864
1k 1k
Q862
2SC3661
C861 R862 HEADPHONE
47 10k
R863 R865 50V MUTING
100k 100k
Q861
R814
FN1F4M
1k
MUTING Q812
2SC3661
CONTROL
HEADPHONE
SWITCH
MUTING
R510
470k
R501
68k
(Page 37)
R921
Q891
47 C892
2SB1116
1W 0.1
JW813
R891
10k
R893
Q891,892
2.2k
FAN MOTOR
DRIVE
Q892
2SC2603
C783
0.1
R819 C813
680 4.7
2W 100V
R869 C863
680 4.7
88
2W 100V
87
R892
R866 4.7k
ZZ1
56
ZZ2
ZZ3
R816
56
35 35
TM801
SUB WOOFER OUT
IMPEDANCE USE 8Ω
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
SW PROTECT
POWER-GND
POWER-GND
HP-L
HP-R
-B
SP PROTECT IN
FAN DET
FRONT RELAY
(Page 43)
DBFB FEEDBACK
R-IN
A-GND
L-IN
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/AM)
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
HCD-RG88