AOC Vibrant VL7A9DA Service Manual page 29

TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -)
9-2 HIGHT VOLTAGE PROTECTION:
1. SHORT R30 OPEN LOAD
2. TEST C14 INPUT POINT
VOLTAGE Vh=1600 ±100V rms
9-3 OUTPUT CURRENT ABNORMALITY:
1 CHECK ON C6 FREQUNCY
&CHIP&IC CPIP
2 OSCILLATOR FREQUNCY
RANGE = 100 ~ 250 KHZ
SAMPO CORPORATION
PASS
PASS
FAIL
TO CHANGE ON
PT1 OR PT2
FUNCTION TEST OK!
FAIL
TO CHANGE ON C6
CHIP OR IC CHIP
FUNCTION TEST OK!