CHAPTER 5. TEST FUNCTION
1. General
1) This diagnostic program has been developed for diagnosing ma-
chine functions in the field. The program is contained within the
ER-A450.
The diagnostic program is stored in the external ROM which will be
executed by the CPU (H8/510) which requires the following diag-
nostic operations:
a) Proper power supply voltages are mandatory for logic circuits
(+5V, VDD, POFF, +12.5V, +24V).
b) CPU input/output pins, CPU internal logic, CKDC8, MPCA7,
system bus and common ROM/RAM must be working properly.
2. Operational procedure
To start the diagnostic program, you must enter the following com-
mand.
3-digit test item number
®
key in the SRV mode.
The key assignment must be properly set and the ROM and RAM
must be operating properly to go into this mode. This is necessary
because the control jumps to the program area in the SRV mode. A
master reset must be performed before operating the ECR for the first
time. After any option is installed, a program reset is required. When
the master reset or program reset is performed, be sure to check the
printout on the journal paper.
Master reset:
Turn power on in the SRV’ mode and change it to
the SRV mode with the JF key pressed.
Journal print:
MASTER RESET ***
Program reset:
Turn power on in the SRV’ mode and change it to
the SRV mode.
Journal print:
PRG. RESET ***
3. Test command list
With the SRV mode and the following test code entry, the test start.
CODE
DESCRIPTION
100
Display & Buzzer test
101
Key code & Cashier key test
102
R/J printer test
104
Keyboard test
105
Mode switch test
106
Printer sensor test
108
Calendar osckllator test
109
SSP test
110
Drawer open sensor test (For standard drawer)
111
Drawer open sensor test (For remote drawer)
120
Standard RAM test
130
Standard ROM test
119
A/D conversion test
200
Option RAM test
500
RS-232 loop back test
4. Test contents
[1] Display & Buzzer test
1) Key operation
2) Functional description
Display the following message on the front and the rear display
boards.
A decimal point shifts from lower number of digit by one digit (per
200m sec.).
Next, display the following segments (for approx. 1 sec.).
Repeat the above two kinds of displays.
Sound a buzzer continuously during test.
3) Check items
a) The display must be correctly shown at each position.
b) The luminosity of displays must be uniform and even at each posi-
tion.
c) Abnormal buzzer sound is not allowed.
4) Test termination
Press any key. The test terminates with the test and message printed
[2] Key code & Cashier key test
1) Key operation
2) Functional description
Key code, MRS switch state and Cashier code are displayed.
100
TL
1. 2. 3. 4. 5. 6. 7. 8. 9. 0.
8. 8. 8. 8. 8. 8. 8. 8. 8. 8.
1 0 0
101
TL
(Not used)
Cashier code
Key code
5 – 1
Summary of Contents for ER-A450
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