In Case Of Does’t Display The Screen Into Specific Mode - LG 42PC1RR-ZL Service Manual

5-2. 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 it Swap)
(3) In case of becomes unusual display from RF mode
Is the Tuner normal?
Yes
Is the CXA2069Q
normal?
Yes
Is the FIL8662
normal?
(4) In the case of becomes unusual display from RF, AV mode
Is the CXA2069Q
normal?
Yes
Is the FIL8662
normal?
(5) In the case of becomes unusual display from Component, RGB mode
Is the FIL8668
normal?
(6) In the case of becomes unusual display from HDMI mode
Is the ANX9021
normal?
Yes
Is the FIL8662
normal?
No
Is the Tuner Cable
connected well?
No
Cable inserts well.
Is the Input voltage, IIC
No
Communication and HV sync
normal?
No
Is normal the Input voltage, IIC
Communication and HV sync?
Is the Input voltage, IIC
No
Communication and HV sync
normal?
Is the Input voltage, IIC
No
Communication and HV sync
normal?
Is the Input voltage, IIC
No
Communication and HV sync
normal?
Is the Input voltage, IIC
No
Communication and HV sync
normal?
Is the Input voltage, IIC
No
Communication and HV sync
normal?
Yes
Is the Input voltage, IIC Communication
No
No
No
No
No
No
No
- 25 -
and CVBS output normal?
No
Replace the Tuner.
Replace the IC.
Replace the IC.
Replace the IC.
Replace the IC.
Replace the IC.
Replace the IC.
Replace the IC.