LG 60PC1D Service Manual page 14

2-2. In case of does't display the screen into specific mode
(1) Symptom
1) The screen does not become the display from specific input mode.
(RF, AV, Component, RGB, DVI)
(2) Check following
1) Check the all input mode should become normality display.
2) Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become
normality display from the PIP mode or DW mode.(Re-Check using Swap function)
Check the NEC64015(IC701) if the main picture is abnormal, and
Check the NEC64015(IC801) If the sub picture is abnormal.
(3) When Analog TV mode is abnormal
Is the Splitter normal?
Yes
Is the Flat Cables
normal?
Yes
Is the CXA2069Q(IC100)
normal?
Yes
Is the uPD64015
normal?
(4) When AV mode is abnormal
Is the CXA2069Q
normal?
Yes
Is the uPD64015
normal?
Yes
Is the Scaler normal?
No
Is the Tuner Cable
connected well?
No
Cable inserts well.
No
Replace Flat Cables.
No
Is normal the Input voltage, IIC
Communication and HV sync?
No
Is normal the Input voltage, IIC
Communication and HV sync?
No
Is normal the Input voltage, IIC
Communication and HV sync?
No
Is normal the Input voltage, IIC
Communication and HV sync?
No
Is normal the Input voltage, IIC
Communication and HV sync?
Yes
Is the Input voltage, IIC Communication
and CVBS output normal?
Replace the Tuner.
No
Replace the IC.
No
Replace the IC.
No
Replace the IC.
No
Replace the IC.
No
Replace the IC.
No