Service manual
3) Check items
a) Cashier code (One hole cashier key: Not for the "U" and "A".)
Display State
000 Off
001 Cashier key No.1
002 Cashier key No.2
003 Cashier key No.3
↓↓
014 Cashier key No.14
015 Cashier key No.15
b) Key code
HARDWARE CODE" of the following keys will be displayed every
time the keys are pressed.
"---" indicates that a key is struck twice and also that input data is
not accepted.
[KEY POSITION CODE]
<ALL KEY>
<ER-A450T STANDARD KEY BOARD LAYOUT>
4) Test termination
Change the mode switch to any other position except the SRV posi-
tion to terminate the test.
The test terminates and the test No. and message is printed
[3] R/J printer test
1) Key operation
2) Functional description
Five lines of special characters are printed as follows on the receipt
and the journal regardless of receipt (ON/OFF) switch setting.
3) Check items
1. Check that the slanted lines of special characters are clearly
printed.
2. Check that the characters are printed at a uniform density.
3. Check the paper feed operation and the logo print.
4) Test termination
This check is terminated automatically.
The termination print is not performed.
[4] Keyboard test
1) Key operation
XXXX: Sumcheck data
Standard keyboard layout sum check data
ER-A450T 2254
2) Functional description
The keyboard test is performed with the sum check data of the key
code.
The sum check data is input into to the upper upper four digits before
the diagnostics code.
The data are compared with the added data which are added until the
final key (CA/AT) is pressed. If the data agree with the added data,
the end print is made. If not, the error print is made.
The sum check data is obtained by totalizing all key hardware codes
except for the (CA/AT) key and converting the total into a decimal figure.
[ALL KEY LAYOUT]
68 67 58 77 78
66 55 56 57 48 38
R J 63 62 61 52 51 40 45 35 46 47 37
74 43 33 42 32 41 31 30 76 75 36 28 27
14 23 24 22 72 21 71 70 15 05 16 18
04 13 03 12 02 11 01 00 26 25 06 08
65
17
07
60
49
20
10
68 67 58 77 78
66
65
55 56 57 48 38
R J 63 62 61 52 51 40 45 35 46 47 37
74 43 33 42 32 41 31 30 76 75 36 28 27
14 23 24 22 72 21 71 70 15 05 16 18
04 13 03 12 02 11 01 00 26 25 06 08
17
1 0 1
102
CA/AT
RECEIPT
JOURNAL
LOGO
XXXX 104
CA/AT
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
41
11
07
3C
32
14
0A
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