Service manual

UX-A1000U
A A
B B
C C
D D
E E
D D C C B B A A
+3.3V
DG DG
+3.3V
DG
SEN0 SEN2 SEN1
LD2 LD1 LD0
E +3.3V DG
+3.3V
R/W E VO
SEN4
RS LD3
SEN3
KEN4A KEN2A KEN3A KEN1A
DG
12 LD1 11 LD0 10
N.C
E
RS
R/W
+3.3V
VO
DG
7 6 5 2 1
CNLCD
14 13 LD2
N.C N.C N.C
LD3
3 4 8 9
12
SEN2
11
SEN1
10
+3.3V
KEN1A
DG
KEN3A
KEN2A KEN4A
7 6 5 2 1
CNPN
SEN3 SEN0
E
SEN4
3 4 8 9
CNPN-8
CNPN-10
CNPN-9
CNLCD-11
CNLCD-12
CNLCD-13
CNPN-7 CNPN-6 CNPN-5
CNLCD-3 CNLCD-1 CNLCD-5 CNLCD-6 CNLCD-2
CNPN-12
CNLCD-4
CNLCD-14
CNPN-11
CNPN-2 CNPN-3 CNPN-1 CNPN-4
08
DOWN REC/MEMO
+
C3 22u/50V
R2
200
PLAY
D3
1N4148
18/G28/TUV
STOP
SPEED/DIAL
R5 100k
IC1
74HC147
A0 A1 A2 A3 NC
D1 D2 D3 D4 D5 D6 D7 D8 D9
VCC
GND
074/GHI
7/PQRS
SPEAKER
R6 100k
5/JKL
A
RESOLUTION
INTERCOM
R11 100k
C2 22000p
R4 100k
R9 100k
D1
1N4148
*
2/ABC
17/G1
R10 100k
1
FUNCTION
UP
R8 100k
14
R7 100k
0
15
1211
R3 100k
16/POLL
6/MNO
HOLD
139/WXYZ
10
COPY/HELP#
Z START/MEMORY
043/DEF
C1
N.M.
N.M.
0601
09
03
D5
1N4148
D4
1N4148
02 05
D2
1N4148
R1
6.2k
6 – 22
[5] Operation Panel PWB circuit 1/1
Note: Since the parts of PWB cannot be
supplied, change it as a unit.