Canon IMAGERUNNER ADVANCE C5030, Руководство по обслуживанию, Страница: 471 / 1455

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Troubleshooting■>■Startup■System■Failure■Diagnosis■>■The■viewpoint■of■this■Startup■System■Failure■Diagnosis■>■Useful■Operations
Troubleshooting■>■Startup■System■Failure■Diagnosis■>■The■viewpoint■of■this■Startup■System■Failure■Diagnosis■>■Useful■Operations
Startup■System■Failure■Diagnosis
The■viewpoint■of■this■Startup■System■Failure■Diagnosis
The■goal■of■the■startup■system■failure■diagnosis■is■to■be■able■to■solve■troubles■associated■
with■a■Control■Panel■display■failure■by■performing■the■following■steps.
It■is■assumed■that■the■users■have■already■learned■the■following■items:
•■ How■to■use■a■tester
•■ Roles■of■the■All-night■Power■Supply■(3.3V)■and■Non-all-night■Power■Supply■(12V)
•■ How■to■back■up■data■(HDD■and■Main■Controller)
CAUTION:
AC■power■supply■is■always■supplied■to■the■AC■Driver■PCB.■Pay■attention■not■to■cause■
short■circuit■when■accessing■the■PCB.
■ ■ Useful■Operations
The■items■of■detailed■procedure■explanation■start■with■a■description■of■the■flow■diagram.■
The■items■and■procedures■checked■in■the■flow■diagram■are■described■separately■in■a■check■
item■table.■The■flow■diagram■contains■numbers■(e.g.■(1))■corresponding■to■the■check■items■
so■that■the■readers■can■grasp■the■relevant■parts■of■the■check■item■table.
Has only
the backlight gone off?
(Can you hear the operation sound
of the Hard Key?)
Is 12V supplied to C1005
of the Control Panel CPU PCB?
Start
[Assumed failure location]
1. Control Panel CPU PCB
2. Main Controller PCB1
3. 12V Connector of the Control Panel
4. Control Panel Unit
(1)
No
No
Yes
Yes
[Assumed failure location]
1. Control Panel Inverter PCB
2. Control Panel Unit
3. 12V Connector of the Control Panel
4. Main Controller PCB1
Turn OFF the Main Power Supply Switch
(2)
(3)
(2)
(4)
The location of each check item
can be referenced by the
corresponding number in the flow
diagram.
Flow Check item list
F-6-22