Symptoms: - Honeywell DPR180 Product Manual

7.2 SYMPTOM: UNIT DOES NOT RESPOND TO POWER UP
CHECK
1. Check if the power switch is on.
2. Check the voltage applied to the supply
terminals L1 and L2. Is there loss of line
power?
3. Check if the fuse is OK.
4. Is the fluorescent light working?
5. Is the problem still present with a new power
supply or with lightning fluorescent tube.
7.3 SYMPTOM: NO DISPLAY BUT THE PRINTING WORKS PROPERLY
CHECK
1. Check if the flat cable connection between
MMI and CPU board is correct.
7.4 SYMPTOM: THE CHART ILLUMINATION FAILED
CHECK
1. Fluorescent tube out?
2. Is the printer operative?
3. If still not correct
7.5 SYMPTOM: DISPLAY SHOWS ONLY ALL DOTS LIGHT OR INCOHERENT DISPLAY
CHECK
1. Check if the flat cable connection between
MMI and CPU board is correct.
7. TROUBLESHOOTING
DIAGNOSTIC / ACTION
1. NO: Push the switch on.
2. YES: Check wiring.
3. NO: Change the fuse
4. NO: Replace the power supply.
5. YES: Replace the CPU board.
DIAGNOSTIC / ACTION
1. NO: Check for the proper connection.
2. Change the MMI.
DIAGNOSTIC / ACTION
1. YES: Replace the fluorescent tube.
2. NO: Replace power supply.
3. Replace the MMI.
DIAGNOSTIC / ACTION
1. NO: Check for the proper connection.
2. Change the CPU board.
3. Change the MMI.
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