Power Supply Unit (Psu) - Daewoo 710C Service Manual

12. Power Supply Unit (P.S.U)
400Vpp (620Vpp)
Trouble in P.S.U
Is
power switch
on?
Yes
Is
fuse F001
O.K?
Yes
Is the
voltage of IC001
pin 4
more than
14.5V?
Yes
Is
voltage of T001
pin 6 130V
(370V)?
Yes
Is the
waveform of IC001
pin 3 correct?
Yes
Is
voltage of C120
80Vdc?
Yes
Is
voltage of C101
210Vdc?
Yes
Is
voltage of C117
5Vdc?
A
29
No
Switch on
No
Check the power cord outlet
and IC001, D004, BD001
No
Replace DZ001, Q001,
Q002 and D003
No
Trouble in TH001, C014,
BD001, D003, D004,
D008
No
Trouble in D003, D004 etc
No
Trouble in D115, D112,
DZ114,Q104, Q107, Q105,
Video Part
No
No