Samsung OFFICESERV 7100 Service Manual page 96

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Turn on the cabinet power switch
Is RUN LED of
MP 10/11 board turned on?
Yes
Does RUN LED of
MP 10/11 board blink?
Yes
Left fan operates properly?
Yes
Is power between
52 V and 58 V measured?
Yes
Check the voltage in J1 of main
mother board.
-54 V: PIN8-PIN9
+5 V: PIN3, 6-PIN7
-5 V: PIN3, 6-PIN1
+12 V: PIN3, 6-PIN2
+3.3 V: PIN3, 6-PIN4, 5
3-2
No
Yes
No
Yes
- Check the battery fuse(F3/F4) of
Power Supply Unit
No
- Check the AC fuse(F1/F2) of Power
Supply Unit(PSU).
- Check if AC/DC LED is
turned on.
- Check the direction of the
power switch.
No
Is only AC LED on?
No
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