23
11. Power Supply Unit (P.S.U)
No
Switch on
No
Yes
Check the power cord outlet
and diode Bridge D001
No
Yes
No
Yes
Yes
Yes
No
No
A
Trouble P.S.U
Is
power switch
on?
Is
fuse F001
O.K?
Is
the IC002
O.K?
Is
voltage of D001
pin 4 130V (270V)?
Is the
waveform T001 pin 5
correct?
Is
voltage of C102
165V DC?
Is
voltage of IC001
pin9 7V~9V DC
Is
voltage of C104
65V DC?
Replace IC002
Trouble in bridge diode
D001 or peripheral
device
Trouble in switching
power transformer T001
or Q001 and its ambient
circuit
Trouble in T001
or D101
No
Trouble in T001 or D102
Summary of Contents for CMC-518X
Page 30: ...28 BLOCK DIAGRAM...
Page 31: ...PCB LAYOUT 29 Main PCB Solder Side...
Page 32: ...30 Video PCB Solder Side...
Page 33: ...31 Main PCB Component Side...
Page 34: ...32 Video PCB Component Side...
Page 35: ...SCHEMATIC DIAGRAM 33...
Page 36: ...34...
Page 37: ...EXPLODED VIEW DIAGRAM 35...
