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6-23. SCHEMATIC DIAGRAM – POWER AMP Section –
C441
R411
10
R441
2.2k
50V
1k
JW441
C445
100p
R413
C443
R443
10k
1000p
EP491
C492
0.01
(CHASSIS)
R446
R414
10k
C444
R444
1000p
JW442
C442
10
R442
C446
50V
1k
100p
R412
2.2k
CX-JV77
All manuals and user guides at all-guides.com
C461
R467
47
3.3k
100V
1W
R496
100
D445
MTZJ-T-72-16B
IC441(1/2)
STK412-240
POWER AMP
R447
56k
R474
2.2k
Q491
Q490,491
2SA1207
LEVEL SHIFT
R445
D444
1k
R470
1SS133T
R472
R473
33k
-72
33k
22k
Q489
2SC1841
Q490
C447
STANDBY
C463
R469
R471
2SC1841
47
470
56k
SWITCH
33k
68k
50V
6.3V
R475
10k
C448
C462
47
47
50V
100V
R495
R476
R477
1k
1
15k
100
R468
3.3k
1W
R448
56k
56k
D446
MTZJ-T-72
-16B
IC441(2/2)
STK412-240
R449
0.22
R455
5W
1k
JW403
R466
56k
Q481,482
DC DETECT
R457
15k
Q482
2SC2785
Q441
2SC1841
C481
100
OVER LOAD
10V
C451
DETECT
0.1
C453
0.1
R453
10
R459
1/2W
100k
R454
10
1/2W
C454
0.1
Q485
2SA1175
D481
C452
1SS133T
0.1
R478
R458
R460
R481
Q485,487
10k
15k
100k
4.7k
PROTECT
DETECT
R487
33k
Q487
2SC2785
Q442
2SC1841
OVER LOAD
DETECT
Q486
2SC2785
R488
22k
JW404
R456
R450
1k
0.22
5W
45
45
R465
47k
R485
100k
R486
100k
R484
56k
Q483
2SC2785
Q481
R483
Q484
2SC2785
22
2SC2785
Q483,484
THERMAL
TH441
DETECT
C486
R482
2.2
10k
50V
D401
D10XB20
D402
D10XB20
R490
4.7k
Q488
2SC2785
C487
D482
4.7
1SS133T
50V
-72
R489
4.7k
Q486,488
PROTECTOR
CX-JV77
JK441
8P
L
SURROUND S
IMPEDAN
USE 24Ω
R
JW406
RY441
L441
1.7µH
L
R461
10
1/2W
FRONT SPEAK
IMPEDANCE
USE 6-16Ω
R462
R
10
1/2W
L442
1.7µH
D443
1SS133T
R407
100
1/2W
EP401
C402
0.01
JW401
(CHASSIS)
CN441
13P
L-OUT
SP-GND
R-OUT
RELAY B+
E
PROTECT
IN-R
AMP-A-GND
IN-L
UNREG.16V
(Page 47
JW411
JW409
PWR GND
STK MUTE
AC-3
GND(AC-3,RELAY)
(CHASSIS)
EP402
CN442
5P
AC-VH
H
AC-VL
C414
0.1
GND
C413
0.1
AC-VL
AC-VH
(Page 47)
The components identified by mark 0 or dotte
line with mark 0 are critical for safety.
Replace only with part number specified.
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