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B. POWER MODULE (M801) CHECK
No Voltage
output
Is voltage supplied
Via CN11?
YES
The voltage of #1 of
IC11 is 5.7V and stable
NO
The voltage of #1 of IC11
fluctuate
in 4.8V~5.7V
YES
Measure resistance
between GND of CN21
and each terminal
of CN21
Resistance >> 100
The 12DC of each
wire of T11 is ok
YES
Primary parts is ok
YES
Secondary parts ok
NO
Check F801, L801,
L802, D802
YES
Check the secondary
circuit
Terminal open and
measure the output
Voltage
NO
Change T11
NO
Change parts
out of order
NO
Change parts
out of order
17
NO
Check the pattern
and T11, L12, IC11
NO
The voltage
is ok
YES
Check the Diode,
Condenser inside
Module
Check the
parts outside
module
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