Technical information

ManualsBrandsAcer ManualsComputer equipmentAL1706

32

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Output Voltage

Unstable

Check feedback

circuit

Check reference

voltage

Check Vbe of 801

below 0.3V

Check Vpin1-2 of IC801

about 1V

Check Vpin3-4 of

IC801 about 6V

Check pinR of IC801

Check circuit if short

Check R810,

R811

Check

R809, R814

Check C815,

D806, R812

Check R809,

R814, IC801,

R818

Check Q801,

Q802

Check ZD801,

ZD802, ZD803,

D803, D805

YES

YES

NG NG

YES

NG NG

YES

NG NG

YES

YES

YES

YES

YES