Read Sharp XE-A113 (serv.man3) Service Manual online
XE-A113 (V)
HARDWARE DESCRIPTION
– 10 –
6-1. LED DIGIT SIGNAL
The above /S0~/S9 are considered as LED DIGIT signals.
S0#: First digit~S9#: 10th digit (For the POPUP side, ST0~ST6 are used.)
6-2. LED SEGMENT SIGNAL
By writing the segment data to 30000h, the LED segment signal can be
outputted.
outputted.
Data~Segment correspondence
6-3. CPU PORT AND REGISTER
<POPUP DISPLAY-RELATED RESISTER>
<LED SEGMENT SIGNAL WRITE>
<CPU PORT>
Strobe signals of /S0~/S9 are made by using SN74HC138 from KST0~KST3
signals.
<OTHERS CPU PORT>
7. POWER
8.
DRAWER
The XE-A113 is provided with 1CH of a drawer port.
* The drawer solenoid drive time is as follow: 55ms (max) 50ms (min)
D0~D6
3 a~g
D7
3 DP
Function
Address
R/W
LED Segment Signal
30000h
W
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
30000h
dp
g
f
e
d
c
b
a
Pin No.
Port
Use signal
Function
80
P10
KST0
Key strobe signal 0
79
P11
KST1
Key strobe signal 1
78
P12
KST2
Key strobe signal 2
77
P13
KST3
Key strobe signal 3
ST0 ST1 ST2
ST3
ST4
ST5 ST6 ST7 ST8 ST9
MODE P90 SRV PGM
Time
REG MGR X1/
Z1
X2/
Z2
P91
PF
HEAD
UP
Out of
paper
VO 24V
(DRAWER)
(DRAWER)
VDD 5.0V
VCC 5.0V
Battery
POFF# detect
point
point
TRANS.
PQ1CG203
PQ1CG203
LM2574
+ Tr
.
VP 8V
PRINTER head
PRINTER head
Motor
ON/OFF Control
(MODE SW
(MODE SW
POFF#
VPON)
ON/OFF Control
(MODE SW)
Measures should be taken to restore within
10 ms after a power failure occurs.
10 ms after a power failure occurs.
VLED 5.7V
BA033
VCC
3.3V
3.3V
Pin No.
Port
Use signal
Function
38
P60
DR1
Drawer drive signal
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