Panasonic UF-5500 Service Manual page 196

UF-5500 / 4500
3.3V / 1.2V Troubleshooting Guide (2)
3.3 V / 1.2 V Troubleshooting(2)
Is the voltage of IC800
pin2 more than 1V?
(1.2V NG)
Check L800, D800, Q802, Q804,
Q806, D805, L801, D803, Q803,
Q805, Q807, D806 and IC800 on
the MAIN Board and replace the
parts having the problem.
3.3V NG
1.2V NG
NG
Is Fuse F800
correct?
OK
NG
OK
OK
NG
Is the problem
still occurred?
OK
END
A
Check Q800, Q801, and IC300 on
the MAIN Board and replace the
parts having the problem.
Is the problem
still occurred?
OK
END
Replace the
MAIN Board.
196
Replace the
NG
MAIN Board.