15
15
NW-E99
NW-E99
4-7. SCHEMATIC DIAGRAM – MAIN BOARD (1/2) –
•
See page 17 for IC Block Diagram.
•
See page 8 for Waveform.
✩
IC400 (microcomputer) on MAIN board cannot be replaced
individually.
Replace it with MAIN board assembly for service.
*
*
C
4
0
4
C
4
0
5
C400
R720
R422
TP407
C418
TP402
TP403
TP404
TP405
VDR401
TP408
TP411
R420
TP416
TP417
TP415
TP418
V
D
R
4
0
2
C421
C419
TP409
C
4
1
4
C415
C417
R
4
1
2
X401
R
4
1
1
R409
C411
C408
R
4
0
8
R
4
0
7
R
4
0
6
R
4
0
5
R403
C406
C407
R402
C403
C402
VDR404
VDR403
R719
C709
R705
Q460
R724
VDR701
R718
R717
R711
R703
S702
R702
TP700
R721
TP704
VDR700
R725
R723
R709
TP702
C701
TP412
R416
C704
C705
C706
R400
VDR400
C401
TP406
R401
R722
TP701
C707
X700
IC
7
0
0
R
4
6
1
R465 0
R466 0
R415 100K
C462
V
D
R
4
0
5
R716
R715
R463
R726
S706
C703
R
4
1
0
R453
C464
R462
IC461
K04SONY99
S707
S703
R714
C416
R
4
0
4
CN401
24P
X400
R421
C409
C410
0
.1
0
.1
0.1
0
10k
PD4
0.1
TXD0
TXD0
TXD0
TXD0
MSINS
MSDIS
10k
MSSCLK
MSBS
MSPWR
XMS
0.1
0.1
XBOOT
0
.1
10p
0.1
2
2
0
16MHz
1
M
22
1
1
1
.5
k
2
2
2
2
0
2.2M
1000p
0.1
10k
4.7
10V
4.7
10V
10k
0.1
470k
NDS356AP
10k
22k
10k
10k
1k
10k
ADK1
10k
XHOLD
470k
470k
10k
XPLAY
0.01
DEBUG
100k
0.01
0.01
0.01
1M
1000p
RST
10k
470k
VDDRTC
0.1
32.768KHz
R
S
5
C
3
4
8
A
-E
2
-F
B
1
0
0
k
0.1
10k
10k
100k
0
1000p
1
0
0
470k
1
1k
22k
10p
47
0
k
22MHz
100k
0.1
4.7
6.3V
