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Normal
Check VD501, C507,
V513, etc.
Check to see if the
collector voltage of V552
is 0V
Normal
Check to see
if , 12v,
5v is normal
Normal
Check N101
ect
No lig
Check to see if
Fuse3 is normal
Normal
Abnormal
Normal
Check the control
voltage of V552 or
CPU power
Abnormal
The failure of
horizontal unit or
N551 N552
Maintenance Service and Trouble shooting
Abnormal
Check to see 110V ˆ180V
etc. voltage is normal
Abnormal
Test to see all terminal
Resistance of load
Is normal
Check to see if
Check
rectifying tube
power unit
is normal
Normal
Change
rectifying tube
17
Abnormal
Abnormal
Check the
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