Sharp XE-A102 (serv.man2) Service Manual ▷ View online
XE-A102
HARDWARE DESCRIPTION
– 7 –
4. CPU PORT TABLE
No.
PIN Name
Signal Name
Description
Output/Input
Initial state
When STBY
1
P50/A8
RWND
REWIND MOTOR
O
L
O/L
2
P51/A9
DR
To DRAWER
O
L
O/L
3
P52/A10
SA2
DISPLAY SEGMENT
O
L
O/L
4
P53/A11
SB2
DISPLAY SEGMENT
O
L
O/L
5
P54/A12
SC2
DISPLAY SEGMENT
O
L
O/L
6
P55/A13
SD2
DISPLAY SEGMENT
O
L
O/L
7
P56/A14
SE2
DISPLAY SEGMENT
O
L
O/L
8
P57/A15
SF2
DISPLAY SEGMENT
O
L
O/L
9
Vss0
GND
10
Vdd0
VDD
11
P30
ST1-
DISPLAY STROBE N-Ch O.D.
O
H
I
12
P31
ST2-
DISPLAY STROBE N-Ch O.D.
O
H
I
13
P32
ST3-
DISPLAY STROBE N-Ch O.D.
O
H
I
14
P33
ST4-
DISPLAY STROBE N-Ch O.D.
O
H
I
15
P34/SI31
ST5
DISPLAY STROBE (H ACTIVE)
O
L
O/L
16
P35/SO31
NU
(GND via 56k)
I
I
17
P36/SCK31-
NU
(GND via 56k)
I
I
18
P20/SI30
SA1
DISPLAY SEGMENT
O
L
O/L
19
P21/SO30
SB1
DISPLAY SEGMENT
O
L
O/L
20
P22/SCK30-
SC1
DISPLAY SEGMENT
O
L
O/L
21
P23/RXD0
SD1
DISPLAY SEGMENT
O
L
O/L
22
P24/TXD0
SE1
DISPLAY SEGMENT
O
L
O/L
23
P25/ASCK0
SF1
DISPLAY SEGMENT
O
L
O/L
24
Vdd1
VDD
25
Avss
GND
26
P17/ANI7
VBAT
BATTERY voltage
I
I
27
P16/ANI6
NU
RESERVE FOR KEY RETURN
I
I
28
P15/ANI5
KR6
KEY RETURN
I
I
29
P14/ANI4
KR5
KEY RETURN
I
I
30
P13/ANI3
KR4
KEY RETURN
I
I
31
P12/ANI2
KR3
KEY RETURN
I
I
32
P11/ANI1
KR2
KEY RETURN
I
I
33
P10/ANI0
KR1
KEY RETURN
I
I
34
Avref
VCC
35
Avdd
VDD
36
RESET-
RESET-
37
XT2
XT2
32.768Khz Xtal
38
XT1
XT1
32.768Khz Xtal
39
IC/VPP
GND
40
X2
X2
SYSTEM CLOCK
41
X1
X1
SYSTEM CLOCK
42
Vss1
GND
43
P00/INTP0
/POF
POWER OFF
I
I
44
P01/INTP1
T
From PRINTER
I
I
45
P02/INTP2
t
From PRINTER
I
I
46
P03/INTP3/ADTRG
R
From PRINTER
I
I
47
P70/TI00/TO0
SG1
DISPLAY SEGMENT
O
L
O/L
48
P71/TI01
SDP1
DISPLAY SEGMENT
O
L
O/L
49
P72/TI50/TO50
SG2
DISPLAY SEGMENT
O
L
O/L
50
P73/TI51/TO51
SDP2
DISPLAY SEGMENT
O
L
O/L
51
P74/PCL
NU
O
L
O/L
52
P75/BUZ
BUZ
BUZZER
O
L
O/L
53
P64/RD-
MTR
To PRINTER
O
L
O/L
54
P65/WR-
TRG
To PRINTER
O
L
O/L
55
P66/WAIT-
MSL1
MODEL SELECT1
I
I
56
P67/ASTB
MSL2
MODEL SELECT2
I
I
57
P40/AD0
KST1
KEY STROBE
O
L
O/L
58
P41/AD1
KST2
KEY STROBE
O
L
O/L
59
P42/AD2
KST3
KEY STROBE
O
L
O/L
60
P43/AD3
KST4
KEY STROBE
O
L
O/L
61
P44/AD4
KST5
KEY STROBE
O
L
O/L
62
P45/AD5
KST6
KEY STROBE
O
L
O/L
63
P46/AD6
KST7
KEY STROBE
O
L
O/L
64
P47/AD7
KST8
KEY STROBE
O
L
O/L
XE-A102
TEST FUNCTION
– 8 –
CHAPTER 5. TEST FUNCTION
1) To execute the diag test, set the mode switch to Z/PGM. Enter the
desired JOB code, and press the PO (paid out) key.
2) The test message is printed by the printer.
3) Test contents and key operations.
1. MODE SWITCH TEST
1)
KEY OPERATION
2)
TEST PROCEDURE
Change over the mode switch as follows. If the mode switch data in the
proper sequence is not read with the above operation, an error is
proper sequence is not read with the above operation, an error is
printed.
To cancel this test mode, set the mode switch to any a position other
than Z/PGM to Z/PGM. In this case, the completion print is performed.
than Z/PGM to Z/PGM. In this case, the completion print is performed.
During the test , the display indicates hard codes which correspond to
the switch positions.
3)
MODE SWITCH OPERATION
Completion print
01
Error print
- - -
01
2. KEY TEST
1)
KEY OPERATION
2)
TEST PROCEDURE
Perform the keyboard check with the sum check data of the key code.
Enter the sum check data of each model in the four digits preceding the
Enter the sum check data of each model in the four digits preceding the
diag number 02, and compare the data with the key position code which
is added until the “CA/AT/NS” (U) “TL/AT/NS” (V) key is pressed.
If the data coincides with the code, the completion print is performed.
If the data coincides with the code, the completion print is performed.
If not, the error print is performed.
3. DISPLAY BUZZER TEST
1)
KEY OPERATION
2)
TEST PROCEDURE
Check the continuous buzzer sound and the display state.
Display state:
8. 7. 6. 5. 4. 3. 2. 1.
The decimal point will shift from the lower digit to the upper, step by
step (500mSEC). To cancel the test mode, press any key, and the
buzzer will stop and the completion print is performed.
Completion print
03
4. DRAWER TEST
1)
KEY OPERATION
2)
TEST PROCEDURE
The drawer opens with the above key operation. Check that the drawer
is open. Press any key to terminate the test.
is open. Press any key to terminate the test.
Completion print
04
NO.
Test contents
Key operations
1
Mode switch test
1
3 [PO]
2
Key test
2
3 [PO]
3
Display buzzer test
3
3 [PO]
4
Drawer test
4
3 [PO]
5
Printer test
5
3 [PO]
6
CPU version NO. print
6
3 [PO]
7
Battery level test
7
3 [PO]
8
Time display test
8
3 [PO]
9
Destination display
9
3 [PO]
PO
1
Mode:
Display:
(01)
(02)
X/FLASH
(03)
Z/PGM
(04)
OFF
REG
VOID
( )
X/FLASH
Z/PGM
OFF
REG
(V)
(U)
Completion print
02
Error print
- - -02
XXXX Sum data
XXXX Sum data
PO
2
PO
3
PO
4
XE-A102
TEST FUNCTION
– 9 –
5. PRINTER TEST
1)
KEY OPERATION
2)
TEST PROCEDURE
With the above key operation , the print test pattern is repeatedly
printed.
Pressing any key will terminate the test after the completion of one
Pressing any key will terminate the test after the completion of one
cycle print. (The receipt is issued at the end.)
6. CPU VERSION NO. PRINT
1)
KEY OPERATION
2)
DESCRIPTION
The CPU version No. are printed with above key operation.
(Print example)
0102
CPU version NO.
06
This test is terminated when printing is completed.
7. BATTERY VOLTAGE SENSOR TEST
1)
KEY OPERATION
2)
TEST PROCEDURE
Displays A/D conversion port read value.
0155 or greater
: Normal
0154 or smaller
: Low battery display
0138 or smaller
: No battery display and MSR is done when power on.
To terminate the test, press any key.
Completion print
07
8. TIME DISPLAY TEST
1)
KEY OPERATION
2)
TEST PROCEDURE
To terminate the test and print the date and time, press any key.
9. DESTINATION DISPLAY
1)
KEY OPERATION
2)TEST PROCEDURE
Display the destination code as follows.
Display X
(X:0)
To terminate the test, press any key.
Completion print
09
PO
5
(U version)
(V version)
PO
6
PO
7
U and A version
V version
Display
0
1
PO
8
8
Display
Hour
Minute
Second
Turn on and off(0.5s)
7
5
4
2
1
3
6
Print
Year Month Date Hour Minute Second
0 8
X X X X X X
X X X X X X
PO
9
XE-A102
SERVICE PRECAUTION
– 10 –
CHAPTER 6. SERVICE PRECAUTION
1. PRINTER
Since there are no service parts for this model printer, only the printer
unit is supplied. Therefore, the printer component parts are not supplied
and no service document is issued.
and no service document is issued.
For troubleshooting of the printer, refer to the table below:
*Printer life: 300 thousand lines (XE-A102: M-31)
Ink roll life: 1 million characters
Phenomena
Check point/possible cause
Repair
• The printer motor is locked and the buzzer
sounds intermittently.
• The printer does not work properly
• Check if the printer cable is disconnected.
• Check and repair the printer cable.
• Check if the printer life is reached.
• Replace the printer.
• Check if any foreign material is attached to
the printing type wheel or the gear section.
• Remove the foreign material. (After removing
the foreign material, set the mode switch to
"REG" and press "CL" key.)
"REG" and press "CL" key.)
• Defective print (Lack on the upper/ lower or
left/right side)
• Check if the printing type is worn down.
• Replace the printer.
• Check if any foreign material is attached to
the printing type wheel.
• Remove the foreign material. (After removing
the foreign material, set the mode switch to
"REG" and press "CL" key.)
"REG" and press "CL" key.)
• Thin print
• Check if the ink roll life is reached.
• Replace the ink roll.
• Check if the ink roll is properly installed.
• Install the ink roll properly.
• Check if the printing type wheel is worn down.
• Replace the printer.
• Uneven pitch of print paper feed
• Check if the roll paper size is proper.
• Use roll paper as specified below;
Paper width
: 57.5 0.5mm
Outside diameter
:
ϕ80mm or less
Inside diameter of paper tube:
ϕ12mm or less
Paper thickness
: 0.06~0.085mm
• Check if a load is applied to the roll paper
during paper feeding. This may result from a
foreign materials attached to the roll paper.
foreign materials attached to the roll paper.
• Remove any foreign material.
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