Maintenance Instructions
Diagnostic Tests
NCR 5635 Spray Currency Dispenser Service Manual
4-31
NCR - CONFIDENTIAL AND PROPRIETARY
Use pursuant to Company Instructions
Start-Up Tests
4
A failure of the start-up diagnostic tests will result in one of the
following patterns being shown continuously on the control board
LEDs D11 and D12 (Where, 0 = LED off, 1 = LED on).
Automatic Tests
4
Tests 1, 2, and 3 are carried out automatically and, if successful both
LEDs flash together to confirm that they have passed.
Test 1 - Microcontroller Confidence and EPROM Sumcheck
4
LED D11 is flashed once to signify that this is test 1.
LED D12 is then flashed the number of times equivalent to the
status code.
LED
D11
LED
D12
Meaning
1
0
Bad switch setting
0
1
CPU quick check failed
Status
Code
Status
0
Passed
8
MCU ALU fault
9
MCU RAM fault
10
MCU timer fault
11
MCU interrupt control register fault
12
MCU serial control register fault
13
EPROM sumcheck fail
master.bk Page 31 Wednesday, March 27, 2002 9:35 AM