Schematic Diagram - Key Section - Sony HCD-GT22 Service Manual

7-29. SCHEMATIC DIAGRAM – KEY Section –
1 2
A
B
KEY4
G
D-GND
C
LED+9V
MAIN
GUITER_LED_OUT
BOARD
(1/4) VOCAL_LED_OUT
CN903
BASS_LED_OUT
(Page 38)
D
KEY LEFT BOARD
E
S602
IC601
/
F
STANDBY
REMOTE CONTROL
RECEIVER
IC601
R602
NJL24H400B
470
S603
1 3
CD
R603
680
G
R657
C601
0.22
S604
R604
TUNNER/
BAND 1k
R698
H
S605
TAPE A/B
R605
1.5k
D612
SLR-325MCT31
SUBWOOFER
S606
AUDIO
R606
2.2k
I
S607 (GT44/GT55)
USB
R607
4.7k
S608
SUBWOOFER
J
K
HCD-GT22/GT44/GT55
3 4 5
KEY TOP BOARD
R644 R645
R641 R642 R643
330
470 680 1k 1.5k
S641 S642 S643 S644 S645
ENTER FORCUS GUITAR
- +
(GUITAR)
CN616
R669 R678 R668 R667
R679 R677
6P 1k 1k
1k 1k
1k 1k
1
2
3
4
5
D607
6 SLR-325VCT31P
D608
GUITAR
SLR-325VCT31P
D609
VOCAL
SLR-325VCT31P
BASS
D611
SLR-325VCT31P
/
STANDBY
2
R655
470
1
STBY-LED
D-GND
S
KEY0
1k
SIRCS
R
PANEL
R656 100 AVREF
BOARD
R688 1k
LED+9V (Page 51)
PANEL
SW-LED-OUT
7 BOARD
CN605
1k
(Page 51)
(GT44/GT55)
6 7 8 9
R647
R646 R648
2.2k 4.7k 10k
S646 S647 S648 S649
VOCAL FORCUS FORCUS BASS
(VOCAL) (BASS)
KEY RIGHT BOARD
S631
R631
DISC 1
330
S632
DISC 2
R632
470
S633
R633
DISC 3
680
S634
EX-CHANGE/
CN615
3P DISC SKIP
D-GND 1
R627
KEY3 2
4.7k
KEY 3
S628
OPEN/CLOSE
R634
1k
S635
R635
1.5k
S636
CD-USB
R636
SYNC/REC
2.2k
S637
CD-TAPE
SYNC
R637
4.7k
S638
TAPE-REC
PAUSE/START
53 53
HCD-GT22/GT44/GT55