![background image](http://html.mh-extra.com/html/sony/hcd-gtr6/hcd-gtr6_service-manual_420751052.webp)
52
52
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
HCD-GTR6/GTR6B/GTR7/GTR8/GTR8B
1
2
3
4
5
6
7
8
9
10
11
14
15
12
13
A
B
C
D
E
F
G
H
I
J
5-30. SCHEMATIC DIAGRAM — SUBWOOFER BOARD — • Refer to page 22 for Block Diagrams. • Refer to page 59 for IC Block Diagrams.
-50
-51
51
0
0
0
0
0
0
0
0
0
0
50
0.6
0
0
16.3
16.3
0
0
0.4
6.5?
0
7.7
0
0.1
7.8
0.7
0.7
0.1
MAIN
BOARD
CN550
(4/5)
(Page 43)
MAIN
BOARD
CN551
(4/5)
(Page 43)
FRONT
BOARD
NO1301
(Page 38)
L
IC800 STK433-100-E : GTR7
IC800 STK433-130-E : GTR8/GTR8B
DC FAN
M893
50V
4.7
C852
JL805
10V
47
C800
5.6k
R814
*3
R890
JL815
R808
2SC3906K-T146E
OVER LOAD
DETECT
OVER LOAD
DETECT
Q800
MC2838-T1
12-1
D800
*1
*1
R858
0.22
R888
JL809
JL804
*3
R840
100p
C853
JL814
50V
4.7
C802
2SC3906K-T146E
Q850
JL808
JW880
JL803
MA2J1110GLS0
D811
*5
R850
JL813
JW830
TB801
GTR8/GTR8B
GTR7/GTR8/GTR8B
GTR7
GTR8/GTR8B
EXCEPT MX
GTR8/GTR8B
GTR8/GTR8B
GTR7/GTR8/GTR8B
EXCEPT MX
EXCEPT MX
GTR7/GTR8/GTR8B
GTR8/GTR8B
GTR7
GTR7
GTR7
GTR7
GTR7
1
2
3
4
JL807
MA2J1
110GLS0
D812
1k
R852
*1
R851
1k
R802
C858
10p
JL801
RY862
1
2
3
4
5
6
RELAY
63V
100
C826
JL812
*2
R889
*6
*6
R841
100p
C803
1
9
8
7
6
5
4
3
2
15
14
13
12
11
10
IC800
SUBWOOFER POWER AMP
-PRE
-VCC
+VCC
+RE1
-RE1
+RE2
-RE2
+PRE
SUB
GND
IN1
NF1
ST
-BY
NF2
IN2
10V
47
C850
R891
47k
R860
0.22
R838
JL806
JL802
*4
R800
*2
R839
63V
100
C825
39k
R810
JL81
1
*1
*1
47k: GTR7
68k: GTR8/GTR8B
*2
2.7k: GTR7
2.2k: GTR8
*3
22k: GTR7/GTR8
*6
270k: GTR7
180k: GTR8
*4
680: GTR7
470: GTR8/GTR8B
*5
1k : GTR7
470: GTR8/GTR8B
R801
JW881 5.0MM
5.0MM
5.0MM
JW814
17.5MM
JW812
17.5MM
JW813
17.5MM
JW882
47k
R893
50V
4.7
C892
JW885
SUBWOOFER OUT
JL841
JL842
JL843
JL844
JL845
JL846
JL847
JW884
17.5MM
5.5MM
5.0MM
5.0MM
TB802
1
2
JW886
JW859
7.5MM
2SC3052EF-T1-LEF
Q825
JL825
MAZ8130GMLS0
D817
R819
4.7k
Q824
2SC3052EF-T1-LEF
C820
0.1
2SC3052EF-T1-LEF
Q822
R816
47
R815
47
C819
0.1
JL224
R818
100k
25V
C818
47
R822
1k
KTA1273-Y-AT
SWITCH
SWITCH
SWITCH
Q821
R817
47
JL893
JL894
JL896
JL895
1000p
1000p
C801
C851
1/4W
100
R827
100
R828
1
R804
R867
150
SW L GND-
JL836
JL835
JL837
JL831
JL832
JL834
JL833
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
SW R GND-
SW R+
SW L+
BTL SW-
BTL SW+
JL827
JL824
JL821
JW891
5.0MM
JL891
JL823
1
2
3
4
5
6
7
8
CN802
FAN HI SPEED
FAN SWITCH
FAN GND
SW RELAY-
UNREG
STK MUTE
SW-L IN
AGND
SW-R IN
1
2
3
4
5
6
7
FAN HI SPEED
FAN GND
SW RELAY -
UNREG
STK MUTE
SW-IN
AGND
8P
CN801
7P
1
2
3
3P
CN820
FAN+
FAN-
R880
10
0.1
C897
0.1
C896
R830
10
0.1
C847
0.1
C846
R836
10
R886
10
C808
10p
0
L880
L830
0
G
H
IC B/D
SUBWOOFER BOARD