Acer X193HQ - DC Output Voltage Is Unstable

Acer Acer –LCD-X193HQ
50
4.3 DC output voltage is unstable
Check R8
22
,
R8
23.R825
Check feedback
circuit
Check
Vpin2.4of IC801
about 1V
Check Vpin
6
of
IC801have output
Check
R
815,
c814
,
R816
Change IC
END
C
heck
Vbe of
Q801below 0.3V
Check
circu
it if
Check ZD801,
D803, D805
Check Q801, Q802
Check
reference
voltage
Check Pin R of
IC803 voltage
about 2.5V
Check R832,, IC801,
Output voltage unstable