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HCD-GTK1i/GTK2i
5-9.
SCHEMATIC DIAGRAM – MAIN BOARD (3/3) –
1
2
A
MAIN BOARD (3/3)
B
C
8
10
MAIN
3
BOARD
9
(2/3)
(Page 21)
3
D
13
MAIN
4
BOARD
12
(2/3)
11
(Page 21)
E
NO105
8P
F
AC3
1
JL801
JL802
AC3
3
JL803
VH
4
VH
5
A
GND
6
JL804
TRANS BOARD
GND
7
CN902
G
VH
8
(Page 24)
VH
9
JL805
H
ET100
(CHASSIS)
I
J
HCD-GTK1i/GTK2i
• Refer to page 25 for IC Block Diagrams
3
4
5
6
C291
4.7
R234
1k
C241
4.7
R230
1k
Q245
2SC3052EF-T1-LEF
MUTING
IC502
IC502
R243
KIA7809API-U/PF
47k
0
+9V REG
R244
9.0
2.2k
C506
C510
-3.6
100
1000p
16V
C505
R294
0.1
2.2k
20.6
R511
22k
-3.6
94
R500
150k
C504
4700
35V
JW502
Q295
C503
0.1
MUTING
2SC3052EF-T1-LEF
C507
1000p
R293
47k
C502
0.1
D501
C501
D10XB60F
0.1
JL260
LINE-MUTE
C843
R842
C842
0.1
100k
2200
63V
C841
R841
2200
100k
63V
C844
0.1
D800
D10XB60F
3.67
Q811
37
0.8
PROTECT
RELAY DRIVE
2SC3052EF-T1-LEF
C565
Q565
R840
22
PROTECTOR
1k
0
16V
2SC3052EF-T1-LEF
PROTECT
R565
47k
R564
8.2
R563
8.2
R562
8.2
C555
0.1
20.5
IC600
D500
DA2J10100L
IC600
KIA7812API-U/PF
0.7
FAN 12V
C552
100
16V
12.8
7
8
9
IC B/D
POWER AMP
IC800
IC800
STK433-090-E
1
2
3
4
5
6
7
8
9
10
-37.6
-39.2
39.2
0
0
0
0
37.7
0
R804
R854
0.22
0.22
2W
2W
R802
R852
TH800
100
100
1/2W
1/2W
C802
C803
R803
100
1
1000p
C852
63V
100
63V
C850 10
50V
R800
1.5k
C800 10
50V
R239
C221
47k
2.2
50V
C220
R805
R855
2.2
10k
10k
50V
0
0
0
0
12.3
12.3
0
R806
R808
R856
R858
39k
100k
39k
100k
D801
JL522
MC2838-T112-1
D802
R235
DA2J10100L
2.2k
R237
470k
Q803
DC DET
R817
2SC3052EF-T1-LEF
22k
R818
1k
Q807
PROTECTOR
2SC3052EF-T1-LEF
0
R816
3.67
47k
R814
4.7k
0
Q806
12.7
PROTECTOR
ISA1235AC1TP-1EF
12.8
C815
R815
2.2
100k
50V
22
22
10
11
12
11
12
13
14
15
0
0.6
0
0
C855
R812
6.8k
100p
C805
100p
C801
C851
1000p
1000p
R850
1.5k
R801
47k
R851
47k
RY800
JW803
JW853
R811
R861
1.5k
1.5k
D806
C811
C861
MC2838-T112-1
47
47
D804
50V
50V
DA2J10100L
C806
100
C832
10V
R809
0.1
68k
C882
0
R859
0.1
56k
-10.8
Q802
12.7
12.7
DC DET
2SC3052EF-T1-LEF
R556
92
36
10k
12.9
13
14
15
R131
R132
R231
33k
33k
820
CN801
4P
1
L+
SPEAKER
LEFT
2
L-
3
R+
SPEAKER
RIGHT
4
R-
R879
R829
4.7k
4.7k
C551
22
50V
R552
1k
0
12.8
Q697
FAN MOTOR DRIVE
2SC3052EF-T1-LEF
ET800
(CHASSIS)
R831
C831
10
0.1
1/2W
R881
C881
10
0.1
1/2W
R554
2.7k
R555
2.7k
12.8
Q699
FAN MOTOR DRIVE
KTA1271Y-AT
0.1
CN125
M101
3P
DC FAN
JL600
1
FAN
C554
JL601
0.1
2
FAN-
JL602
3
C553
47
25V
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