Printed Wiring Board - Karaoke Board; Schematic Diagram - Karaoke Board - Sony hcd-gn1000d Service Manual

HCD-GN1000D
Q Q
3 7 6 3 1 5 1 5 0
7-36. PRINTED WIRING BOARD – KARAOKE BOARD –
1 2 3
KARAOKE BOARD
A
W
MAIN
BOARD
B
CN505
(Page 41)
C
D
T E
L 1 3 9 4 2 2 9 6 5 1 3
7-37. SCHEMATIC DIAGRAM – KARAOKE BOARD –
w w w
HCD-GN1000D
• See page 25 for Circuit Boards Location.
4 5
• Semiconductor
Location
Ref. No.
D2000
D2001
D2002
D2003
D2006
D2007
D2008
IC2000
IC2001
21
IC2002
1-869-677-
(21)
x a o
y
. i
http://www.xiaoyu163.com
• IC Block Diagrams
:Uses unleaded solder. 8
- MIC Board -
IC1100 TC9488FG
30
Location
C-3
B-3
D-3
D-3
B-4
C-4
B-4
1
C-3
A-4
A-3
Q Q
3 7 6 3
u 1 6 3
.
62 62
http://www.xiaoyu163.com
2 4
9 9 8
29 28 27 26 25 24 23 22 21 20
VREF
VREF
POST
DAC S/H
LPF
ADPCM DELAY ADPCM
ADC
DECODE DRAM ENCODE
VREF
OSC VOLUME CONTROL
2 3 4 5 6 7 8 9 10 11
1 5 1 5 0 8 9 2 4
- PANEL Board -
IC904 NJM2760V-TE2
IN1 1
IN2 2 DET
BPF
BUF1OUT 3
DET
BPF2IN1 4
BPF DET
BPF2IN2 5
BPF3IN1 6
BPF DET
BPF3IN2 7
BPF4IN1 8
BPF DET
BPF4IN2 9
GND 10
m
c o
2
9 9
19 18 17 16
ALC
VREF
VREF
ALC
12 13 14 15
9 8 2 9 9
20 BPF2OUT
19 BPF1IN1
BPF1IN2
18
RECOUT
17
16 BPF4OUT
15 BPF3OUT
14 BPF2OUT
13 BPF1OUT
12 NC
11 VCC