Acroprint ES700 Service Manual

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Brand: Acroprint

Category: Clock

Type: Service manual for Acroprint ES700

Pages: 57

Download Acroprint ES700 Service manual

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5-2
5-1. No Operation
• Digits are not displayed on the LCD.
• Unable to print.
No operation
Turn the power off and detach
the outer jacket.
AC Adapter Ass'y failure.
Check the AC Adapter Ass'y output voltage level.
(See "Voltage Check.")
Determine the cause of the blown fuse.
• Foreign matter (metal, etc.)
• Caught or exposed wires
• Short circuit caused by inadequate soldering
Control circuit failure.
Is the 10V level
being output?
Is the 5V level
being output?
• Regulator IC P3 failure
• Short circuit
• Over load
Check the 5V and 10V voltage levels.
(See "Voltage Check.")
Is fuse F1 blown?
Normal?
Normal?
Yes
Yes
Yes
Yes
No
No
No
No
Yes
No
Change the fuse.
For safty reasons,
replace only with the same type and rating of Fuse.
• Regulator IC P4 failure
• Short circuit
• Over load