HCD-GN88D
58
58
7-28. SCHEMATIC DIAGRAM – POWER AMP Board –
R501
R551
R504
D501
D551
R509
R559
R582
R581
C581
R561
Q506
Q505
R524
R520
C544
C545
R592
R533
R532
JW566
JW567
D506
Q510
R527
R528
R529
R530
C516
R539
D507
CN503
CN504
D502
R508
R558
NO502
R578
C502
C552
C501
C551
C554
C504
R512
R517
R516
R513
R515
R514
D581
R519
C559
C509
R521
R522
Q514
C512
RY501
R545
R548
R547
D511
JW890
JW886
TH502
NO505
TH501
JW891
JW887
R577
JW927
D541
C596
R555
R556
R557
R507
Q501
Q551
IC501(2/2)
IC501(1/2)
D503
D504
C503
R503
R553
C553
R511
D543
C546
R542
EP501
C513
C542
R541
C592
R591
C591
C541
R523
R502
R552
R554
R518
R506
JW926
R565
R564
D509
D508
C517
R546
R570
R569
Q581
Q504
Q503
Q517
Q516
R572
R568
Q518
C526
C507
C508
Q511
C558
C557
EP502
R505
JW872
JW895
C524
C523
C525
C527
C528
NO501
R531
1k
1k
47k
1SS133T
-72
1SS133T
-72
10
1/2W
10
1/2W
33k
33k
22 50V
100
1/4W
FR
2SC2785
2SC2785
3.3k
1W
3.3k
1W
0.1
100V
0.1
100V
100k
47k
100k
1SS133T
2SC2785
56k
47k
22k
22k
100
10V
680
2W
1SS133T
13P
6P
1SS133T
0.1
5W
0.1
5W
560k
1000p
1000p
4.7
50V
4.7
50V
100
10V
100
10V
1
1/4W
FR
10k
10k
33k
22k
2.2k
1SS133T-72
68k
22
100V
22
100V
100k
100k
2SC2785
0.01
RELAY
24V
1k
47k
47k
1SS133T
8P
100
RBV-2506
2200
100V
820
33k
100k
100k
2SC1841
OVER LOAD
DETECT
2SC1841
OVER LOAD
DETECT
STK412-150
POWER AMP
STK412-150
POWER AMP
MTZJ-T-72-18C
MTZJ-T-72-18C
220p
330
330
220p
100
1/4W
FR
D5SBA20
2200
100V
100k
TERMINAL, EARTH
0.01
3300
50V
100k
3300
50V
100k
0.1
0.1
100k
47k
47k
47k
33k
33k
22k
22k
1SS133T
1SS133T
10
50V
22k
10k
47k
2SC1841
STANDBY
SWITCH
2SC1841
STANDBY
SWITCH
2SA1207
STANDBY
SWITCH
2SA1175TP-HFE
2SC2785
100k
10k
2SC2785
FAN MOTOR
ON SWITCH
10
50V
0.068
0.068
2SC2785
RELAY
SWITCH
0.068
0.068
EARTH
820
0.01
0.01
0.01
0.01
0.01
3P
R CH
L CH
VH
VH
VL
VL
*1
-
+
-
+
-
+
-
+
R
L
R
L
(IMPEDANCE
FRONT SPEAKER
(IMPEDANCE
SURROUND SPEAKER
RELAY DRIVE
FRONT SPEAKER
RELAY DRIVE
FRONT SPEAKER
SWITCH
OVER
LOAD
DETECT
SWITCH
DETECT
Q505,506,514
TEMPERATURE
-
+
(IMPEDANCE
CENTER SPEAKER
*1 R531
300k
330k
TH
EXCEPT TH
TM501 10P