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HCD-GT22/GT44/GT55
45
45
HCD-GT22/GT44/GT55
7-21. SCHEMATIC DIAGRAM – AMP Board (GT22/GT55) –
•
See page 58 for IC Block Diagrams.
0
15.4
0
15.4
15.2
0
0.2
15.5
0
0.7
0.2
0.8
0.8
1.8
0
0
1.9
0
15.5
2.6
3.2
30.5
15
0
0
0
0
15
0
0
1.8
0
0
57.2
0
0
0
0
58.8
-58.8
30
-30
13.8
-13.8
-57
100V
0.1
C403
100V
0.1
C404
2SC3052EF-T1-LEF
Q481
2SC3052EF-T1-LEF
Q482
2SC3052EF-T1-LEF
Q483
2SC3052EF-T1-LEF
Q484
2SC3052EF-T1-LEF
Q486
2SC3052EF-T1-LEF
Q487
50V
47
C447
50V
47
C448
100V
47
C461
100V
47
C462
50V
2.2
C486
50V
10
C441
50V
10
C442
10V
100
C481
100p
C445
100p
C446
1000p
C443
1000p
C444
47k
R443
47k
R444
47k
R447
47k
R448
47k
R465
47k
R487
33k
R491
33k
R492
4.7k
R481
22k
R457
22k
R458
22k
R488
330
R483
2.2k
R441
2.2k
R442
R479
3.3k
10k
R482
100k
R401
100k
R402
100k
R403
100k
R404
100k
R405
100k
R406
100k
R409
100k
R410
100k
R459
100k
R460
100k
R466
R480
33k
47k
R484
47k
R485
100k
R486
R497
120k
100
R407
100
R417
100
R418
100
R419
10
R411
10
R412
10
R413
10
R414
10
R415
10
R416
10
R420
10
R421
10
R422
10
R423
10
R424
10
R425
10
R453
10
R454
10
R461
10
R462
1k
R445
1k
R446
1k
R455
1k
R456
1k
R499
1W
2.2k
R467
1W
2.2k
R468
TH441
5W
0.22
R449
5W
0.22
R450
0.1
C413
0.1
C414
0.1
C451
0.1
C452
0.1
C453
0.1
C454
2SC5625
Q441
2SC5625
Q442
1k
R498
33k
R469
1k
R470
35V
22
C463
E
EP401
UDZW-TE17-16B
D445
UDZW-TE17-16B
D446
1.7uH
L441
1.7uH
L442
RY441
-1
-2
1
3
4
5
6
7
CN443
7P
+VCC
GND
-VCC
PROTECT
RELAY+
RELAY-
C411
1000p
1
2
3
4
5
6
7
8
9
10
11
12
13
13P
CN441
GND(AC-3_RELAY)
NC
STK_MUTE
POWER_GND
UNREG.16V
IN-L
AMP-A_GND
IN-R
PROTECT
HP R-OUT
HP-GND
HP L-OUT
1
3
4
5
6
CN442
6P
AC-VH
AC-VL
GND
AC-VL
AC-VH
JL405
JL407
JL408
JL411
JL413
JL415
JL416
JL418
JL419
JL420
JL421
JL422
JL438
JL439
30PRA20FC
D448
30PRA20FC
D447
MC2836
D441
2SC3052EF-T1-LEF
Q489
2SC3052EF-T1-LEF
Q480
2.2k
R489
2.2k
R490
15k
R440
2SC3052EF-T1-LEF
Q488
ISA1235AC1TP-1EF
Q485
D10XB20
D401
D10XB20
D402
MA111-TX
D483
MA111-TX
D481
MA111-TX
D443
71V
2200
C405
71V
2200
C406
C409
C410
1
R495
100
R500
100
R496
1
6
5
4
3
2
11
10
9
8
7
12
16
15
14
13
19
18
17
STK415-130
IC441
AMP BOARD
IC441
POWER AMP
A
10
1
2
J
H
B
13
11
L
C
7
8
I
14
F
9
6
K
4
15
16
3
G
D
5
17
E
12
(GT55)
(GT55)
(GT55)
PROTECT
DETECT
Q483,484
TEMPERATURE DETECT
DC DETECT
Q481,482
PROTECT
STANDBY SWITCH
OVER LOAD DETECT
OVER LOAD DETECT
-
JK441
SPEAKER
L
+
+
R
-
(CHASSIS)
∗
409,410
2200 50V(GT22)
3300 50V(GT55)
RELAY DRIVE
Q480,Q486,488
∗
∗
~
~
~
~