Konica Minolta bizhub 164 does not turn ON

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Frank
Posts: 5
Joined: Sat Oct 21, 2017 9:54 pm

Konica Minolta bizhub 164 does not turn ON

Postby Frank » Sat Oct 28, 2017 3:18 pm

POWER SUPPLY TROUBLE
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 Back/Stop/Reset 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 power supply unit (DCPU)
6 Check of output of DC3.3 V to control 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 control panel.

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