Sony HCD-GTR88 - Schematic Diagram - SUBWOOFER Board

HCD-GTR88 HCD-GTR88
4040
6-24. SCHEMATIC DIAGRAM - SUBWOOFER Board -
• See page 43 for Waveforms. • See page 44 for IC Block Diagrams. • See page 48 for IC Pin Function Description.
SUBWOOFER BOARD
IC800
IC B/D
JL833
JL841
JL831
JL813
JL835
JL846
1000p
C801
JL808
5W
0.22
R838
1k
R802
63V
100
C826
C808 10p
JL801
50V
4.7
C802
JL811
1
R804
JL806
JW830
JL836
100p
C803
198765432 151413121110
STK433-130-E
IC800
SUBWOOFER POWER AMP
-PRE
-VCC
+VCC
+RE1
-RE1
+RE2
-RE2
+PRE
SUB
GND
IN1
NF1
ST-BY
NF2
IN2
JL824
63V 100
C825
2.2k
R889
JL809
JL827
68k
R801
5W
0.22
R888
JL845
50V
4.7
C852
JL807
2SC3906K-T146E
Q850
JL847
68kR858
47k
R860
10V
47
C850
JL837
1000p
C851
10V
47
C800
10V
C875
0.1
1k
R852
100p
C853
JL832
JL815
JL803
2SC3906K-T146E
DETECT
Q800
JL814
JL804
MC2838-T112-1
D800
RY862
JL834
39k
R810
68k
R851
JW880
MA2J1110GLS0
D811
JL821
2.2k
R839
JL844
JL812
10V
C876
0.1
JL843
C858 10p
5.6k
R814
JL802
JL823
JL805
68kR808
1 2 3 4 5 6 7
7P
CN803
SW PWR GND
SW L-GND
-VL
+VL
SW R-GND
SW-OVERLOAD
SW-DC DET
1 2 3 4 5 6
6P
CN804
SW RELAY UNREG/M+9V STK MUTE SW-L IN
AGND
SW-R IN
100
1/2W
1/2W
R827
100
R828
JL842
22k
R840
22k
R890
180k
R841
180k
R891
0
R893
0.1C896
0.1C847 0.1C897
0.1C846
+ - + -
TB801
1 2 3 4
0R812
JL848
JL849
JL850
JL851
JL852 JL853
JL854 JL855
*R800 *R800, *R850
EXCEPT MX: 470
MX: 560
*R850
R830 10
R880 10
SW GND
CHNL
R
L
SW GND
CHNL
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A B C D
E
F
G
H
I
J
POWER AMP
BOARD
NO1301
(Page 29)
I
MAIN
BOARD
(3/3)
CN550
(Page 33)
B
SUBWOOFER
DETECT
0
8.4
0
0
8.4
0
-48.3 -50 50 0 0 0 0 48.5 0 0 0.7 0 0