Schematic Diagram - Poweramp Board (2/2) - Sony HCD-GT111 Service Manual

7-23. SCHEMATIC DIAGRAM - POWERAMP Board (2/2) -

1 2
A
POWERAMP BOARD (2/2)
∗ C826, 827
47 63V (GT111)
47 100V (GT222/GT444/GT555)
B
(GT111/GT444)
JL851
C
JW802
JW801
D
R838
100k
16.5
0 R883
2.2k
Q800
2SC5625
0
OVER
LOAD
DETECT
E
R859
R836 R837
22k 33k
R843
R842
2.2k 2.2k
F
1W
1W
JW883 30.1
(GT222/GT555)
Q813
2SC3052EF-T1-LEF
STANDBY SWITCH
G
R845 R844
33k
33k
(TYPE A)
H
I
J
K
HCD-GT111/GT222/GT444/GT555
3 4 5 6
21 POWERAMP (Page 42)
BOARD
(1/2)
C826
R865
∗
100
R832
0.22
5W
R831
0.22
5W
R830 R884
∗ R885
47k
47k
47k (GT444)
56k (GT555)
16.5
0
Q801
2SC5625
OVER
0
LOAD
DETECT
R860
22k 33k
R851
10k
D802 0
MC2836
0
Q809
2.8
ISA1235AC1TP-1EF
0
Q806, 809-811
3.3 R856 PROTECT
47k R863
C828
1k
22
35V
R846
1k
0
R864
1k
0
R857
22k
Q810
2SC3052EF-T1-LEF 2SC3052EF-T1-LEF
(TYPE A)
∗ R821, 823
820 (GT444)
1k (GT111/GT222/GT555)
R829
560 (GT555)
680 (GT444)
R827 R828
∗ ∗
C833 C835 C818 C819 C820 C812 R824 C814 R825
0.1 0.1 47 47 47 1000p 47k 1000p 47k
50V 50V 50V
∗
R827, 828 (GT444/GT555)
820 (GT111/GT444)
1k (GT555)
1.2k (GT222)
7 8 9
(GT444/GT555)
R833
0.22
5W
R835
2.2k
JL850
JW800
(GT111/GT222)
∗ R866
36k (GT444/GT555)
39k (GT111/GT222)
R866
Q802 ∗
2SC5625
OVER
C838 C837
LOAD
0 0.1
DETECT
C839 C840
R889 R890 R881
R868
0.1
33k 22k 27k 33k
0
16.5 R875 R879 R877
10 10
R839
100k
R871 R874 R869
R885 D811 10 10
∗
MA2J1110GLS0
(GT444/GT555)
D807
MA2J1110GLS0
C830
2.2
50V
Q803
OVER
R850 LOAD
4.7k DETECT
0 0
(TYPE A)
DETECT 0
0
R858
0
2.2k
0
C829
Q812
100
2SC3052EF-T1-LEF
10V
Q811
(GT444/GT555)
(TYPE A)
R822
C811
560 (GT555)
10
680 (GT444) 50V
JR894 0
(TYPE B)
(TYPE B)
JR892 0
JR893 0
R823
C810
∗
10 50V
R821
C809
∗
10
50V
(TYPE A)
C806 C805
3300 3300
R892 R891
R826
50V 50V C803 C804
100k 100k
47k (GT444) ∗ ∗
56k (GT555)
∗
(GT444/GT555) (GT222/GT555) C803, 804
2200 63V (GT111)
2200 70V (GT444)
2200 80V (GT222/GT555)
43 43
10 11 12
L801 1.7uH
RY800
R840 10 R808 10
R810 10 R80910
L802 1.7uH
R841 10 R811 10
R813 10 R812 10
D803
0.1
MA2J1110GLS0
0.1
R814
R878 100
10 10
R872
10 10
R804 0
100
0
Q804
2SC3052EF-T1-LEF
RELAY DRIVE
0
0
0
0
Q815
2SC3052EF-T1-LEF
0
0
0
JR891
R820 0
15k
R867
0.2 0.2
1k
0
0
Q814
2SC3052EF-T1-LEF
R895 R896
1k 22k
(TYPE B) Q812, 814, 815
DC DETECT
R899 15k
D801
D10XB20
~
~
~
D812
MC2838-T112-1 R898
~
D800
15k
D10XB20
R897
C843 C802 C801 C807 C808
22k
10 0.1 0.1 0.1 0.1
50V 100V 100V
(GT222/GT555)
Note: A part of circuit composition of POWERAMP board has been changed in the midway of production.
POWERAMP board that has not been changed appears as TYPE A, and the changed POWERAMP
board appears as TYPE B.
HCD-GT111/GT222/GT444/GT555
Ver. 1.2
13 14 15
JK800
-
R
+
FRONT
SPEAKER
-
L
+
NO800
7P
1 RLY-
Q
3 RLY+
4 SW OUT
SW
5 SW OUT
JACK
6 SW-SP_GND BOARD
CN890
7 SW-SP_GND
(Page
40)
R805
100
R815
100
(GT444/GT555)
EP800
(CHASSIS)
CN801
∗
(GT444/GT555)
JL852
13 SW IN
JL853
12 SW ON/OFF
JL854
11 SPK RELAY
JL855
10 POWER GND
JL856
9 HP-L
H
JL857
8 HP GND
JL858
7 HP-R
MAIN
JL859
BOARD
6 UNREG+16V
JL860 (3/4)
CN479
5 PROTECT
JL861
(Page 38)
4 STK MUTE
JL862
3 L-IN
JL863
2 PREGND
JL864
1 R-IN
(GT111: E2, E3, E51)
(Page
TRANS1
NO801 R
7P BOARD
49)
CN903
JL865
1 AC-VH
JL866
3 AC-VL
JL867
(GT222/GT444/GT555)
4 GND
(Page
JL868 TRANS2
S
5 GND BOARD
51)
JL869
CN903
6 AC-VL
JL870
7 AC-VH
(GT111: AEP, RU, AR)
(Page
TRANSX
T
53)
BOARD
CN903
∗
CN801
11P (GT111/GT222)
13P (GT444/GT555)