Canon CLC5000 Información técnica Pagina 494

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COPYRIGHT
©
2001 CANON INC.
2000 2000 2000 2000
CANON CLC5000 REV.0 JAN. 2001
CHAPTER 5 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
5-137
b.E100–xx02
DC power supply PCB 1 (lower)
1) Is power present at J2101 on the video controller PCB?
J2101-1 (+) — J2101-4 (–): 5 V
J2101-8 (+) — J2101-9 (–): 8 V
J2101-7 (+) — J2101-8 (–): -12 V
NO: Check the wiring; if normal, replace the DC power supply PCB
(lower).
Video controller PCB
Laser diver PCB
2) Is there a fault in the connection between the video controller PCB
and the laser drive PCB of the color for which ‘E100’ is indicated?
C J2106 — J3002C
J2107 — J3001C
M J2108 — J3002M
J2109 — J3001M
Y J2110 — J3002Y
J2111 — J3001Y
Bk J2112 — J3002K
J2113 — J3001K
YES: Re-connect it.
Laser exposure system
Laser unit, Video controller PCB
DC controller PCB
3) Is the laser power normal? (See “Adjusting the Laser Power.”
NO: Make adjustments.
If output is absent, replace the laser unit.
YES: Try replacing the following parts in sequence:
• Laser unit
• Video controller PCB
• DC controller PCB
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