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17
Check to see if
Fuse3 is normal
No lig
Abnormal
Check VD501, C507,
V513, etc.
Check to see if the
collector voltage of V552
is 0V
Check N101
ect
Check to see
if , 12v,
5v is normal
Check the control
voltage of V552 or
CPU power
The failure of
horizontal unit or
N551 N552
Normal
Normal
Normal
Abnormal
Check to see 110V 180V
etc. voltage is normal
Test to see all terminal
Resistance of load
Is normal
Check
power unit
Check to see if
rectifying tube
is normal
Change
rectifying tube
Check the
Loader
Abnormal
Normal
Abnormal
Normal
Abnormal
Normal
Abnormal
Maintenance Service and Trouble shooting
Summary of Contents for HTX21S31
Page 12: ...11 6 Net dimension Haier Net dimension ...
Page 19: ...18 11 Circuit Diagram Circuit Diagram ...
Page 22: ...21 PCB ...