Star Micronics LC-4511 Technical Manual page 65

4
Output of
power supply unit is
normal? *4
YES
Turn power off.
Connect connector CN11
from main logic board
Turn power on.
Fuse blows out?
YES
Replace fuse.
1) Replace main logic board.
2) Replace printer mechanism.
3) Replace control panel board.
A
*4 Power Supply Unit
LC-4511 +33V Line +33V ± 5%
LC-4521 +40V Line +40V ± 5%
+5V Line +5V ± 5%
NO
NO
Between Pin 4 and Pin 5 of CN1
Between Pin 1 and Pin 2 of CN1
– 61 –
Replace power supply unit.
TROUBLESHOOTING