4–6
TROUBLESHOOTING MALFUNCTIONS
Cause
Lens home
position
sensor
(PS2)
DC control-
ler PCB
Yes/No
NO
NO
YES
Step
1
2
3
8
E210
Remedy
See “The lens fails to move.”
Check the wiring from the
connector J310 on the DC
controller to the lens home
position sensor (PS2). If
normal, replace PS2.
End.
Checks
Does the lens move when the power
switch is turned ON?
Is the lens home position sensor (PS2)
normal? (See the descriptions on how
to check the photointerrupters.)
Replace the DC controller PCB. Is the
problem corrected?
Cause
DC
controller
Composite
power
supply PCB
Step
1
2
Checks
Does the scanning lamp turn ON?
Replace the DC controller PCB. Is the
problem corrected?
Yes/No
NO
YES
NO
Remedy
See “The scanning lamp fails
to turn ON.”
Replace the DC controller
PCB.
Check the wiring between
the DC controller PCB and
the composite power supply
PCB; if normal, replace the
composite power supply
PCB.
9
E220
Cause
DC controller
PCB
Step
1
Checks
Turn OFF/ON the power switch. Is the
problem corrected?
Yes/No
YES
NO
Remedy
End.
Replace the DC controller
PCB or the composite power
supply PCB.
10
E240
Содержание NP6621
Страница 4: ...ii ...
Страница 8: ...vi ...
Страница 48: ...3 2 IMAGE FAULTS ...
Страница 49: ...3 3 IMAGE FAULTS NOT USED ...
Страница 50: ...3 4 IMAGE FAULTS B Image Fault Samples not available ...
Страница 80: ...4 16 TROUBLESHOOTING MALFUNCTIONS ...
Страница 98: ...6 8 ARRANGEMENT AND FUNCTIONS OF THE ELECTRICAL PARTS D PCBs Figure 6 603 1 2 3 4 5 6 7 8 9 10 11 12 ...
Страница 108: ...6 18 ARRANGEMENT AND FUNCTIONS OF THE ELECTRICAL PARTS 4 Fixing Heater Driver PCB Figure 6 611 J402 1 J401 W1 W2 ...
Страница 134: ...A 4 APPENDIX ...
Страница 135: ...A 5 APPENDIX C GENERAL CIRCUIT DIAGRAM not available ...
Страница 136: ...A 6 APPENDIX ...
Страница 144: ...A 14 APPENDIX ...