Konica-Minolta bizhub 165
Troubleshooting. The copier does not turn ON
POWER SUPPLY TROUBLE
| Step | Check | Result | Action |
|---|---|---|---|
| 1 | A malfunction code appears when the power switch is turned ON. | YES | • Go to step 2. |
| NO | • Go to step 3. | ||
| 2 | The malfunction is temporarily reset when the power switch is turned OFF and ON with the Clear/Stop key held down. | YES | • Perform the troubleshooting procedure according to the malfunction code. |
| 3 | Power supply voltage check <Check procedure> Check voltage across pins of DC power supply (DCPU) when the power switch is turned ON. • Voltage across CN1DCPU-1 and CN1DCPU-2 AC0 V when the power switch is OFF Rated AC voltage when the power switch is turned ON |
NO | • Check wall outlet for voltage. • Check power cord for continuity. • Check power switch. |
| 4 | Check of output of DC24 V to PRCB <Check procedure> Check voltage across a PRCB pin and GND when the power switch is turned ON. • Voltage across CN5PRCB-1 and GND • Voltage across CN5PRCB-3 and GND DC0 V when the power switch is OFF DC24 V when the power switch is turned ON |
NO | • Check front door switch (SW3). • Check right door switch (SW2). • Change DC power supply (DCPU). |
| 5 | Check of output of DC 3.3 V to PRCB <Check procedure> Check voltage across a PRCB pin and GND when the power switch is turned ON. • Voltage across CN5PRCB-7, 8 and GND DC0 V when the power switch is OFF DC3.3 V when the power switch is turned ON |
NO | • Change DC power supply (DCPU). |
| 6 | Check of output of DC3.3 V to operation panel <Check procedure> Check voltage across a PRCB pin and GND when the power switch is turned ON. • Voltage across P103PRCB-8, 9 and GND DC0 V when the power switch is OFF DC3.3 V when the power switch is turned ON |
NO | • Change printer control board (PRCB). • Change DC power supply (DCPU). |
| YES | • Change operation panel. |