![background image](http://html.mh-extra.com/html/sony/hcd-gnx80/hcd-gnx80_service-manual_420697045.webp)
HCD-GNX80
45
45
HCD-GNX80
7-20. SCHEMATIC DIAGRAM – PA BOARD –
Q606
R607
R692
R606
R693
R608
R698
R694
D609
R609
R611
R610
C608
R604
R605
R674
R624
R623
R673
R696
R695
R617
C666
C667
C616
C617
R631
R632
R633
TH630
TH629
R622
R672
C609
C610
C619
R616
C618
C657
C677
R656
R676
R677
R657
C656
C676
NO600
C660
R658
R678
C659
C679
D660
D661
C652
C602
C693
C683
EP690
D655
D654
R655
R654
C655
D646
R644
R645
R685
C648
C649
R649
R682
R683
R697
R634
R638
R639
C634
C635
R635
R640
R641
C636 R636
R643
C637
R637
R642
R662
R663
C651
C601
R650
R600
C650
C600
D624
NO601
CN601
CN600
C605
C692
C691
C682
C681
R691
R681
R667
R666
RY665
R647
R648
D665
Q648
Q666
Q647
R665
R668
R618
R612
C604
R603
R653
C654
R671
R669
R670
D670
D620
R621
R620
R619
Q618
R615
D612
D611
R613
R614
D656
D658
C658
C678
R661
R660
EP660
Q668
Q604
Q610
R651
R601
Q634
Q682
Q640
Q641
R646
R628
R630 R626
R629
R627
Q644
Q629
Q630
Q628
TM600
TM601
JW677
JW676
JW681
JW691
RY646
IC600
R625
CN607
R652
R602
2SA1207
2.2k
47k
47k
100k
100k
100k
68k
1SS355
68k
33k
68k
22
50V
10k
10k
22k
22k
68k
56k
100k
100k
100k
0.068
0.068
0.068
0.068
100k
100k
56k
10
1/2W
10
1/2W
22
100V
22
100V
10
100V
1
1/4W
10
100V
0.1
100V
0.1
100V
220k
220k
220k
220k
3300
100V
3300
100V
7P
100000p
100k
100k
0.1
100V
0.1
100V
1SS355
1SS355
100
10V
100
10V
0.01
0.01
GND PLATE
1SS355
1SS355
47k
47k
10
50V
1SS355
2.2k
10k
10k
100
10V
10
50V
22k
1k
4.7k
2.2k
2.2k
100k
100k
100
25V
100
25V
10k
1k
1k
4.7
100V
680
2W
150
4.7
100V
680
2W
150
150
150
0.0022
0.0022
1k
1k
4.7
50V
4.7
50V
1SS355
3P
8P
13P
0.01
0.068
0.068
0.068
0.068
10
1/2W
10
1/2W
10k
4.7k
RELAY
1k
22k
1SS355TE
2SC1623-L5L6
OVER LOAD
DETECT SWITCH
2SC2412K-T-146-R
SPEAKER PROTECT
RELAY DRIVE
2SC1623-L5L6
FRONT SPEAKER
RELAY DRIVE
82
1/2W
0.1
5W
0.1
5W
100
1/4W
220p
47k
47k
220p
100k
1k
33k
1SS355
1SS355
100k
33k
1k
2SC3722K-E
OVERLOAD DET
100
1/4W
UDZSTE-1718B
UDZSTE-1718B
3.3k
1W
3.3k
1W
RBV-2506
D25XB60
3300
63V
3300
63V
10k
10k
2SC3722K-E
OVERLOAD DET
2SC3722K-E
2SC3722K-E
47k
47k
DTA124EKA-T146
MUTING
CONTROL SWITCH
2SC1623-L5L6
MUTING
CONTROL SWITCH
2SC3661
HEADPHONE
MUTING
2SC3661
HEADPHONE
MUTING
82
1/2W
22k
100k
56k
5.6k
1k
2SC1623-L5L6
FRONT SPEAKER
RELAY DRIVE
2SC1623-L5L6
FAN MOTOR
ON SWITCH
2SC1623-L5L6
TEMPERATURE
DETECT SWITCH
2SC1623-L5L6
TEMPERATURE
DETECT SWITCH
2P
2P
RELAY
STK412-150
5P
*
*
2
*
2
Q604,606,610
STANBY SWITCH
R
L
SURR SPEAKER
R
L
FRONT SPEAKER
POWER AMP
(3/3)
MAIN
BOARD
(3/3)
MAIN
BOARD
BOARD
BOARD
BOARD
SURROUND
TRANS
MIC
*
R625
2.7k
E2,E51
E3,AUS
3.9k
E2,E51
E3,AUS
*
2 R602,652
470
390
(Page49)
(Page43)
(Page39)
(Page39)
(Page47)