D-NE270
17
17
C896
C897
C812
C899
R877
R806
R824
SL805
C805
C898
VDR803
R949
CN807
R808
IC803
C804
R805
R942
R802
CN801
R868
R894
C806
R840
SL801
C830
VDR804
R812
C811
R935
R817
R903
S809
S806
SL824
R970
C835
C834
C833
R886
R971
R813
R818
IC804
R819
0.1
0.1
0.1
0.1
100k
100k
100k
1
0.1
100k
10P
100
AK6417CH-E2
100k
47k
2.2k
20P
47k
220k
0.1
10k
0.0047
10k
10K
100k
0
1k
100k
0.0047
0.0047
0.0047
100k
100k
10k
0
RT8H045C-T1
220k
24
26
27
28
29
31
32
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
55
56
57
58
59
60
BATMNT
POWERLT
RMKEY
CLOK
DATA
SENS
SCDR
XLAT
XSDE
L
C
D
R
S
T
W
R
R
D
R8M
HOLD
OPEN
L
C
D
A
0
X
R
S
T
B
E
E
P
S
Y
S
M
FG
O
P
S
T
B
O
P
G
S
W
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
FO
K
G
F
S
RESET
XWAKEUP
R
E
Q
_
I
S
D
C
L
K
S
D
IN
S
D
O
U
T
D
T
S
_
S
C
T
O
D
T
S
_
S
C
T
I
D
T
S
_
S
C
K
SDCLK
SDIN
SDOUT
DTS_SDTO
DTS_SDTI
DTS_SCK
LCDRST
LCDA0
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
WR
RD
RMKEY
XWAKEUP
DCINMNT
GND
GND
GND
VCPU
TXD21
RXD22
TCK23
RST30
BOOT78
8M28
EEPROM
+
-
(4/4)
(NOT SUPPLIED)
RES
WR
RD
LCDA0
D7
D6
D5
D4
D3
D2
D1
D0
VCC2_2.0V
VCC3_2.7V
DGND
AD-KEY1
AD-KEY2
SGND
PS
LCD_CS
VOL
(FOR CHECK)
(TEST)
SWITCH
(EXCEPT Canadian)
6-8.
SCHEMATIC DIAGRAM – MAIN Board (4/4) –
•
See page 11 for Waveform.
•
See page 21 for IC Pin Function Description.
@ When IC803 is damaged, replace the MAIN board.