Service manual

XE-A201US
– 21 –
8 7 6 5 4
3
2 1
A B
C D
12345678
D C
B A
1/1
2. KEY INTERFACE PWB CIRCUIT
/ S 0
/ S 1
/ S 2
/VON
/RESET
/RESET
/VON
P 9 2
P 9 3
P 9 4
P 9 5
P 9 6
P 9 7
VCC
2.54mm Pitch
P 9 1
/ S 3
/ S 4
/ S 5
/ S 6
/ S 7
VCC
M D R
P90
KEY&MODE SW
P90
R201 R202 R203
R204 R205
R206
R207
R228
47K
123456789
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
CN22 52044-2245
D21
1SS133
D22
1SS133
D23
1SS133
D24
1SS133
D25
1SS133
D26
1SS133
D27
1SS133
D28
1SS133
/S0 /S1 /S2 /S3 /S4 /S5 /S6
P[91..97]
P[91..97]
D31
1SS133
/S1
1 2 3 4 5 6 7 8 9 10 11 12
CN21
52045-1245
D29
1SS133
D30
1SS133
VLED
/S7 /S8 /S9
VCC
a b
PLACE NEAR CONNECTER
FROM MAIN
A B
VLED
C104
100uF/16V
C105
0.1uF
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
CN23
52044-3445
47K * 7EA
Q20
KTA1664 KTA1663 KTA1663 KTA1663 KTA1663 KTA1663 KTA1663 KTA1663KTA1664 KTA1664
C106
100pF
R208
12K
R209
12K
Q21 Q22 Q23 Q24 Q25 Q26 Q27
R210
12K
R211
12K
R212
12K
R213
12K
R214
12K
R215
12K
Q28 Q39
VLED
VLED
R216
12K
R217
12K
Q38
G 1 '
G 2 '
R226
120
R227
120
B '
C '
D '
E '
F '
A '
Q29Q30Q31
Q37Q36Q35Q34
G 3 '
G 4 '
G 5 '
G 6 '
G 7 '
G 8 '
G 9 '
1 6
3
IC23C
1 5
4
IC23D
1 4
5
IC23E
1 3
6
IC23F
1 2
7
IC23G
1 1
8
IC23H
R220
120
R221
120
R222
120
R223
120
R224
120
R225
120
/S[0..9]
G 1 0
'
9 PIN :GND
G '
D P
'
d p
Q33
Q32
KRA101M X 10
/S[0..9]
or DTA143ESA
1 8
1
IC23A
1 7
2
IC23B
R218
120
R219
120
P90 P91 P92 P93 P94 P95 P96 P97 /VON
c d e f g dp
/S3 /S4 /S5 /S6 /RESET /S9
/RESET P90 P91 P92 P93 P94 P95 P96 P97 /S9
/VON
/S3 /S4 /S5 /S6 C D E F G dp /S0 /S1 /S2 /S7 /S8
/S0 /S1 /S2 /S7 /S8
G1' G2' G3' G4' G5' G6' G7' A' B' C' D' E' F' G' DP'
POP UP
G1' G2' G3' G4' G5' G6' G7' A' B' C' D' E' F' G'
DP' 1
2 3 4 5 6 7 8 9 10 11 12 13 14 15
CN24
52806-1510
10PIN : NC KID65083AP
g bcdef a
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