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Model
ER-A450S (serv.man5)
Pages
42
Size
925.41 KB
Type
PDF
Document
Service Manual
Brand
Device
ECR / Service Manual
File
er-a450s-sm5.pdf
Date

Sharp ER-A450S (serv.man5) Service Manual ▷ View online

[STANDARD KEYBOARD LAYOUT]
SUMCHECK DATA = A4 + 0E + 04 + 2B + 17 + 
 
 
 
 
 
 
 
  = 2243
Display the following message on the front display.
3) Check items
a) Check of the display in the test and the content of end print.
4) Test termination
This check is terminated automatically.
The test terminates with the test and message printed
[5] Mode switch test
1) Key operation
2) Functional description
Display the following message on the front display.
When the Mode Switch is switched over in the following order, a
numerical value corresponding to each position of mode switch is
displayed at X.
3) Check items
a) Check of the display in the test and the content of end print.
4) Test termination
The test terminates with the test and message printed
[6] Printer sensor test
1) Key operation
2) Functional description
State of the paper near end sensor is sensed and displayed.
3) Check items
Displayed
Description
W (NER)
0
Receipt paper near end sensor:
Detected
1
Receipt paper near end sensor: Not
detected
X (NEJ)
0
Journal paper near end sensor: Detected
1
Journal paper near end sensor: Not
detected
Y (RPES)
0
Receipt paper end sensor: Detected
1
Receipt paper end sensor: Not detected
Z (JPES)
0
Journal paper end sensor: Detected
1
Journal paper end sensor: Not detected
"1" is always display when no sensor is used.
4) Test termination
Press any key. The test terminates with the test and message printed
44
43
3A 4D 4E
42
37
38
39
30
26
 R
 J
3F
3E 3D 34
33
28
2D 23
2E 2F
25
A4 2B 21
2A 20
29
1F
1E 4C 4B 24
1C 1B
0E 17
18
16
48
15
47
46
0F
05
10
12
04
0D 03
0C 02
0B 01
00
1A 19
06
08
11
1  0  4
Key code
Normal end
Error
1 0 4
1 0 4
E-----
105
TL
1  0  5
X
Mode:
x  :
PGM2
OFF
OP X/Z
SRV
0
PGM1
1
2
9
3
X2/Z2
MGR
REG
SRV
0
X1/Z1
7
6
5
4
Normal end
Error
1 0 5
1 0 5
E-----
106
TL
1  0  6
WX-YZ
State of JPES 
(Journal paper end sensor)
State of RPES 
(Receipt paper end sensor)
State of NEJ 
(Journal paper near end sensor)
State of NER 
(Receipt paper near end sensor)
1 0 6
5 – 3
[7] Calendar oscillator test
1) Key operation
2) Functional description
This program is used to test the calendar oscillator function.
Display:
"
✻✻
 – 
✻✻
" shows the current time.
"–" is blinking. (500ms ON and OFF)
3) Check items
Time elapsed after master reset must be displayed. 
4) Test termination
Press any key. The terminates with the test and message printed
[8] SSP test
1)Key operation
2) Functional description
If an SSP is programmed, its contents are automatically chacked and
the result is printed.
Display:
3) Check items
Check printing of the termination message.
4) Test termination
This check is terminated automatically.
The test terminates with the test and message printed
In this SSP check, set the data for check in the empty area of SSP
entry REG and erase the data for check after completion of check.
Therefore SSP setting before check is not cleard.
If therefore there is no SSP entry REG remainedfor SSP check,
F-print is performed to terminate the program without check.
[9] Drawer open sensor test (For standard test)
1) Key operation
2) Functional description
State of the drawer open sensor is sensed and displayed.
3) Check items
X
Description
O
Drawer open sensor detected. (Drawer opend)
C
Drawer open sensor not detected. (Drawer closed)
a) Check opening of the specified drawer.
b) Check the display indication when the drawer is open and closed.
4) Test termination
Press any key. The test terminates with the test and message printed
[10] Drawer open sensor test (For remote drawer)
1) Key operation
2) Functional description
State of the drawer open sensor is sensed and displayed.
3) Check items
X
Description
O
Drawer open sensor detected. (Drawer opend)
C
Drawer open sensor not detected. (Drawer closed)
a) Check opening of the specified drawer.
b) Check the display indication when the drawer is open and closed.
4) Test termination
Press any key. The test terminates with the test and message printed
[11] Standard RAM test
1) Key operation
108
TL
1 0 8
109
TL
1  0  9
Normal end
Error
1 0 9
1 0 9
E-----
1 0 9
F-----
SSP table full
110
TL
1  1  0
X
1 1 0
111
TL
1  1  1
X
1 1 1
120
TL
5 – 4
2) Functional description
Perform the following check for the standard RAM 256 KByte SRAM.
The memory contents should not be changed before and after the
check.
Perform the following processes for memory address to be checked
(1C0000H~1FFFFFH).
PASS1: Save memory data.
PASS2:  Write data "0000H."
PASS3:  Read and compare data "0000H," write data "5555H."
PASS4:  Read and compare data "5555H," write data "AAAAH."
PASS5:  Read and compare data "AAAAH."
PASS6:  Restore the memory data.
If a compare error occurs in the check sequence PASS1-PASS6, an
error print is made. If no error occurs through all address, the check
ends normally.
The following address check is performed further.
Check point address =
1C0000H, 1C0001H, 1C0002H, 1C0004H
1C0008H, 1C0010H, 1C0020H, 1C0040H
1C0080H, 1C0100H, 1C0200H, 1C0400H
1C0800H, 1C1000H, 1C2000H, 1C4000H
1C8000H, 1D0000H, 1E0000H, 1F0000H
3) Check the following items:
Check the termination printout.
4) Test termination
The test terminates after printing the termination printout.
Termination printout:
 Normal termination
120 
  Abnormal termination
  Ex – – – – –
120 
                                 X = 1: Data check error
2: Address check error
Note: When an error occurs, the error print is performed and the
check is terminated. The error occurrence address is shown in
hexadecimal at positions shown with 
.
[12] Standard ROM test
1) Key operation
2) Functional description
Sum check of the standard ROM (C00000H - C7FFFFH) is per-
formed. If the lower two digits of SUM is 10H, it is normal. 
3) Check the following items:
Check the printout after the test.
4) Test termination
The test automatically terminates with termination message.
Normal termination print
 
130 
 ROM1
27040
Error termination print
  E – – – –  
130 
 ROM1
27040
Note:  "
" means the ROM version number. 
The underlined section (10 bytes) of code table is provided in
the ROM as a standard and the table content is always
printed. 
The table position is the upper 10 digits of the ROM address.
The check sum correction address is the last address -0FH.
[13] A/D conversion test
1) Key operation
2) Contents
The digital conversion value of the input signal to the CPU A/D con-
vertor is displayed sequentially. The display channel is changes is
approx. 1 sec. interval by timer control and is displayed repeatedly.
Thermistor input
Vrf input: Vrf means the presumed voltage of VRF when VCC is
supposed to be +0.5V.
+24V input
Head input
Note: "XXXXX": The 10 bit data of the A/D convertor displayed in
decimal number.
Therefore, its connect may be 0000 
 1024.
3) Confirmation
Check the display content.
4) Termination
To when the mode switch is set to any mode other than SRV mode,
the termination print is made and the test is terminated.
                        151
Test termination print
[14] Option RAM test
1) Key operation
JOB
#NO.
RAM NO.
Memory to be
checked
Address area to be
checked
200
Option RAM
ER-03RA
200000H 
 27FFFFH
1
0
7-SEGMENT DISPLAY:
2
130
TL
1
0
7-SEGMENT DISPLAY:
3
151
TL
1
1
7-SEGMENT DISPLAY:
5
1
XXXX
1
1
7-SEGMENT DISPLAY:
5
2
XXXX
1
1
7-SEGMENT DISPLAY:
5
3
XXXX
1
1
7-SEGMENT DISPLAY:
5
4
XXXX
200
TL
5 – 5
2) Content
The following check are performed for the optional RAM.
The following process is performed for memory addresses to be
checked. 
PASS1: memory data save
PASS2: Data "0000H" write
PASS3: Data "0000H" read and comparison, data "5555H" write
PASS4: Data "5555H" read and comparison, data "AAAAH" write
PASS5: Data "AAAAH" read and comparison
PASS6: Memory data restore
If a compare error is found in the check sequence from PASS1 to
PASS6, error print (error code E1) is performed. If there is no error
found to the end of the last address, the operation is completed
normally.
Then the following address check is performed. " " shows a valid
address, and "
" shows an invalid address.
In case of an error, error code E2 is printed.
Check Address
JOB#201(ER-03RA)
200000H
|
200001H
|
200002H
|
200004H
|
200008H
|
200010H
|
200020H
|
200040H
|
200080H
|
200100H
|
200200H
|
200400H
|
200800H
|
201000H
|
202000H
|
204000H
|
208000H
|
210000H
|
220000H
|
240000H
|
260000H
|
3) Check the following items.
Check the termination print. 
4) Test termination
The test terminates after printing the termination printout. 
Termination print
E1---
200
(data check error)
E2---
200
(address check error)
200
(normal end)
: Error address
[15] RS-232 Channel 1 check
[16] RS-232 channel 8 check
Loop back connector for D-SUB 9pin : UKOG-6705RCZZ
1) Key operation check
The program is activated by JOB#501 or JOB#550
SRV mode: 501 
 TL  : Channel 1
550 
 TL  : Channel 8
2) Functional descripiton
If the channel specified by JOB#CODE is not set, the machine per-
forms the mis-operation processing. When the channel is set, the
machine conducts the loop check concerning the channel specified
by JOB#CODE by using the loopback connector.
The following three items are checked:
Control signal check
Data transfer check
Timer check (RS-232 onboard timer)
Check 
Control signal check (ERn-DRn
CIn, RSn-CDn
CSn loop check)
OUTPUT
INPUT
ERn
RSn
DRn
CIn
CDn
CSn
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
ON
ON
The read check about the above INPUT items and interrupt check of
CS, CI and CD are performed.
Read check:
ER and RS are switched over in the order as
shown in the above table to confirm the logic of
DR, CI, CD and CS.If the read logic is different
from the one in the table, error print-outs occur.
Interrupt check: Allows the interruption of either of CS, CI and CD
one by one. (The mask is released.)
The interruption does not take place when each
signal is turned on. Or if the interruption occurs
when a signal is turned off, error print-outs occur.
Each of the above checks should be made in four cycles.
Check 
Data transfer check (SDn-RDn loop check)
In this check, transfer 256-byte loopback data of $00
 $FF.
Note) The above check should be made with the baud rate set at
9600BPS.
Check 
Timer check
Before making check 
, set the corresponding timer at
10ms for RCVDT activation, and check to see that:
1) TRQ1 is not generated during the execution of  check
.
2) TRQ1 is generated in 10msec. after check 
  is    fin-
ished.
3) Check the followin item
If an error occurs during the above checks, following error print-outs
occur. Even if an error occurs during check 
, the test is continued
after the corresponding error print-out has occurred, but if an error
occurs during the execution of check 
 or 
, the test is terminated
after the corresponding error print-out has occurred.
Note that when check 
 or 
 terminates, the termination print-
2
0
7-SEGMENT DISPLAY:
0
SIGNAL NAME
CD
RD
SD
ER
GND
DR
RS
CS
CI
1
2
3
4
5
6
7
8
9
PIN No.
5 – 6
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