Konica Minolta Magicolor 3300 Service Manual page 61

Step
Checking FAN FUSER
Does FAN FUSER function normally?
15
Using FAN FUSER diagnostic tool, check by Digital Output
Test.
Checking PWBA DRV HBN for signal
16 Print 1 sheet.
Is P/J50-7PIN <=> P/J50-9PIN +24VDC?
Checking PWBA DRV HBN for signal
17 Print 1 sheet.
Is P/J42-30PIN <=> P/J42-14PIN 0VDC?
Checking PWBA MCU HBN for signal
18 Print 1 sheet.
Is P/J12-1PIN <=> P/J12-17PIN 0VDC?
Checking HARNESS ASSY DUP2 for continuity
19
Is J50 <=> J137 continuous normally?
Checking FAN FUSER
20 Check if an error occurs though the FAN FUSER was
replaced with a new one.
Checking PWBA DRV HBN for signal
21 Print 1 sheet.
Is P/J50-8PIN <=> P/J50-9PIN +3.3VDC?
Checking PWBA DRV HBN for signal
22 Print 1 sheet.
Is P/J42-27PIN <=> P/J42-14PIN +3.3VDC?
Checking PWBA MCU HBN for signal
23 Print 1 sheet.
Is P/J12-4PIN <=> P/J12-17PIN +3.3VDC?
Check
Chapter 1 Troubleshooting
Remedy
Yes
Replace PWBA
Go to step [16]
MCU HBN
Go to step [19] Go to step [17]
Replace PWBA
Go to step [18]
DRV HBN
Replace
Replace PWBA
HARNESS ASSY
MCU HBN
DRV2-2
Replace
HARNESS ASSY
Go to step [20]
DUP2
Go to step [21] End of work
Replace FAN
Go to step [22]
FUSER
Replace PWBA
Go to step [23]
DRV HBN
Replace
Replace PWBA
HARNESS ASSY
MCU HBN
DRV2-2
No
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