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4.5.2. Unstable Power
Unstable power
Check sampling
Circuit
Check the R pin
voltage of IC803
Check pin6 of IC802
voltage is 16V
Check pin1 of
IC802 voltage
Check R811,
R818, R810,
Check the C pin voltage
IC803 if 3V
of
Check SCREW4*8 *2
Check D806 , C815 is short
Change R803, R 807
R824, R825, R812
END
3
R811, R818, R810,
ChangeD803
Change IC803
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