26
11. Power Supply Unit (P.S.U)
Is the
IC001
O.K?
Replace IC001
No
Is
voltage of C104
65Vdc?
No
Is
voltage of D002
130V (270V)?
Trouble in switching
power transformer T001
or IC001 and its ambient
circuit
Trouble in diode
D001,D002,D003,D004
or peripheral device
No
Is the
waveform of T001
pin5 correct?
Trouble in T001
or D101
No
Trouble in P.S.U
Is
power switch
on?
Switch on
No
Yes
Yes
Yes
Yes
Yes
Yes
Is
voltage of C102
165Vdc?
Trouble in T001 or D102
No
Is
fuse F001
O.K?
Check the power cord outlet
and diode D001,D002,D003,D004
No
A
Summary of Contents for 432X
Page 31: ...PCB LAYOUT 29 Main PCB Component Side...
Page 32: ...30 Main PCB Solder Side...
Page 33: ...31 Video PCB Component Side Video PCB Solder Side...
Page 34: ...32 SCHEMATIC DIAGRAM...
Page 35: ...33...
Page 36: ...34...
Page 37: ...35...
Page 38: ...EXPLODED VIEW DIAGRAM 36...
