Dixie Narco DNCB 168, Parts Service Troubleshooting Manual

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F) Check control board.
2. Problem:
Display will not function.
Troubleshooting: A) Check for bad connections or broken wires from display to control board.
B) Check F1 motor power fuse (1.6 Amp).
C) Check display board.
D) Check transformer.
E) Check control board.
3. Problem:
Display shows $1 and then increases in dollar increments.
Troubleshooting: A) Check coin mech.
B) Check validator.
C) Check control board.
4. Problem:
Cannot set price on a given selection.
Troubleshooting: A) Check configuration 1 is set to C1 1 (multi-pricing).
B) Check for bad connections or broken wires from select switch to control board.
C) Check select switches.
D) Check control board.
5. Problem:
Vender changes a set vend price to .10¢ on selections on its own. (domestic only - .10¢ could be any
given price.)
Troubleshooting: A) Check secondary pricing program.
B) Check for bad connections or broken wires from select switch to control board.
C) Check control board. (Possible cold solder joints.)
6. Problem:
Control board looses its memory when power is shut off to vender.
Troubleshooting: A) Check battery (see problem 16 on next page).
B) Check control board.
7. Problem:
Space to sales does not work properly when adding and deleting columns.
Troubleshooting: A) Check for bad connections or broken wires from select switch to control board.
B) Check control board.
8. Problem:
F2 motor power fuse (6 Amp) blows when a given motor runs.
Troubleshooting: A) Check motor for short.
B) Check motor switch and motor wires for short.
C) Check motor.
D) Check the ballast, lamps, and lamp harnessing for broken, backed out, or crossed wires.
9. Problem:
Board power fuse blows when supplying power.
Troubleshooting: A) Check changer and interface harness.
B) Check validator and interface harness.
10. Problem:
Flashing decimal point.
Troubleshooting: A) Go to diagnostics.
•
All columns shown to be jammed.
•
Check 6 Amp motor fuse (F2).
•
Select problem.
•
Enable problem (check board).
•
Pb problem (check board).
SIID SELECT PANEL / DISPLAY
11. Problem:
Plug in vender and "1-1-1-1" scrolls across display.
Troubleshooting: A) Remove power to vender for one minute, then power vender back up.
B) Check for bad connections or broken, backed out, or crossed wires in select panel
harness.
C) Check top of door weld assembly for seal.
D) Check control board.