LG StudioWorks 520Si Owner's Manual page 29

4. TROUBLE IN H/V SIZE, H/V POSITION, S-PCC, TRAPEZOID
NO ADJUSTED H-/V SIZE,
POSITION, S-PCC, TRAP.
CHECK
IC401 PIN 17, 18,
19, 20, 30 ?
YES
TROUBLE IN
SCL, SDA CIRCUIT
NO
- 18 -
TROUBLE IN
IC401 (MICOM)