Power Supply Circuit Abnormal - Star Micronics LC-8211 Technical Manual

GENERAL SPECIFICATIONS

4-2. Power Supply Circuit Abnormal

(1) Remove connector CN101 from power supply unit.
START
Fuse F1
is blown?
NO
Check the 5V line of the
main logic board.
END
YES
Replace Fuse F1
blown again?
The no load voltages are below:
+33V Line
+5V Line
YES
Fuse is
NO
+33V 5%
+5V 5%
– 64 –
Replace
1) Power supply unit
Between Pin 4 and Pin 3 of CN1
Between Pin 1 and Pin 2 of CN1