DOWNLOAD LG 50PG60UD-DA (CHASSIS:PT81A) Service Manual ↓ Size: 9.85 MB | Pages: 40 in PDF or view online for FREE

Model
50PG60UD-DA (CHASSIS:PT81A)
Pages
40
Size
9.85 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50pg60ud-da-chassis-pt81a.pdf
Date
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LG 50PG60UD-DA (CHASSIS:PT81A) Service Manual ▷ View online

- 17 -
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.
(3) In case of becomes unusual display from RF mode
(4) In the case of becomes unusual display from side S-video/AV mod
Is the Tuner normal?
Is the RF cable connected with TV
Set?
Connect the RF cable.
Yes
No
No
Is the IC100(FLI106X0H)
normal?
Replace the Tuner(TU301).
No
Is the Input voltage, IIC Communication
and CVBS output normal?
Yes
Is the IIC communication waveform
between the tuner and IC100 normal?
No
Block A
Replace the
IC100(FLI106X0H).
No
Is the Video input of the AV
(JK105, JK106) normal?
Check the input source
No
Same as Block A
- 18 -
(5) In the case of becomes unusual display from Component, RGB mode
(6) In the case of becomes unusual display from HDMI mode
(7) In the case of becomes unusual display from SCART mode
Is the R,G,B input and H,V
Sync of the JK104 normal?
Check the input source
No
Is the HDMI(IC201)
normal?
Yes
Same as Block A
Is the TMDS waveform between the
IC and HDMI jacks normal?
No
Is the Video input of AV
jack normal?
Yes
Same as Block A
Check the input source
No
Replace the IC201.
No
Yes
Same as Block A
- 19 -
6. In case of no sound
(1) Symptom
1) LED is Green.
2) Screen display but sound is not output.
(2) Check following
All input(mode) is no
sound?
Only HDMI is No
Sound?
Yes
Download
the EDID data
Yes
No
YES
Only RF is no sound?
Check
the Tuner’s IN/OUTPUT
Yes
No
Is the IC629  normal?
Replace the IC629
(MSP4458)
No
Is the IC601 normal?
Replace the IC601
(NTP-3000A)
No
YES
Replace the VSC Board
YES
Is the speakers turned
on?
Set on the speakers on
menu.
No
Is the speaker Cable
connect?
Connect the Speaker
Cable.
No
Yes
- 20 -
BLOCK DIAGRAM
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