Schematic Diagram - Sub Woofer Board - Sony HCD-RG88 Service Manual

7-20. SCHEMATIC DIAGRAM – SUB WOOFER Board –
C1001
4.7 C1008
50V 22
R1022
100V
100
R1001
1k
C1002 IC502(1/2)
220p STK-402-120S
C1003 R1002 R1003
0.33 47k 1.5k
C1004
R1005 R1006
100
10k 1
10V
C1051 C1054 C1018
C1053 4.7 100 10000p
0.01 50V 10V
R1052 R1051 R1053
47k 1k 1.5k
C1017
C1052
4.7
220p
50V
R1023
47k
R1012
2.2k
Q1002
2SA988
STANDBY
SWITCH
R1007 D1001 R1011 R1013
22k 1SS133T 100k 22k
Q1001
2SC2785
STANDBY
Q1003
SWITCH
2SC2785
R1014
STANDBY
10k
C1005 C1006
SWITCH
R1008
22 100
33k
100V 50V C1007
R1010
47
47k
50V
1SS133T
R1009
100
IC502(2/2)
STK-402-120S
SUB WOOFER AMP
R1019
0.22
5W
R1017
R1018
1k
0.22
5W
R1004
47k
Q1004
C1009
2SC2785
0.047
OVER LOAD
R1015 C1010
DETECT
10k 0.047
R1021
R1016 R1020
10
15k 10Ok
1/2W
D1002
1SS133T
D1052
D1003
R1066 R1070 1SS133T
15k 100k
R1054
47k
Q1054
2SC2785
OVER LOAD
DETECT
R1067
1k
R1071
10
1/2W
R1068
0.22
C1060
5W
0.047
C1059
0.047
R1069
0.22
5W
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/AM)
41 41
NO1001
2P
SW-IN
AGND
(Page 37)
NO1002
13P
SW-
SW-
IMAGINARY_GND
SW+
SW+
(Page 35)
SW_MUTE
IMAGINARY_GND
RCC_GND
SW+
SW-
OVERLOAD_DET
VL-
(Page 43)
VL+
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
HCD-RG88