LG 32LG500H / 32LG505H (CHASSIS:LA66A) Service Manual ▷ View online
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9.2. Lodgenet Card & Auto Camport Check
9.3. RJP(Remote Jack Pack) Check
(1) Check Order 'Pass' Judgment
1) Connecting RJP Test JIG & RJP Port of Set with Modem
Cable(8Pin)
2) Check the RJP operation on OSD(In-start -> RJP Pin
Check ->
G
3) 'SUCCESS! PIN CONNECTION OK' -> PASS
4) 'Pin Check Fail!!!!' -> NG
5) If the Result is 'NG', try One More
4) 'Pin Check Fail!!!!' -> NG
5) If the Result is 'NG', try One More
(2) Needs JIG & Equip. & Cable
1) RJP Check JIG, Modem Cable (8 Pin)
9.4. MPI Card Check
10. Input the Shipping Option Data
1) Push the ADJ key in an Adjust Remote controller.
2) Input the Option Number that was specified in the BOM,
2) Input the Option Number that was specified in the BOM,
into the Shipping area.
3) The work is finished, Push
A
Key.
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TROUBLESHOOTING
CURRENT PROBE : P6022A or same product
4.6 k‰ / 500 W
SC100
P203
P202
P401
400PF
3.15KV
3.15KV
400PF
3.15KV
3.15KV
P402
INPUT CONTROL SIGNAL
BURST DIMMING SIGNAL
INVERTER + POWER BOARD
VOLTAGE PROBE P6015A
or same product
or same product
VOLTAGE PROBE P6015A
or same product
or same product
INVERTER
CONNECTION
WIRE
CONNECTION
WIRE
INVERTER
TRANSFORMER
TRANSFORMER
ON/OFF : 5V
SELECT
180Hz : 5V
150Hz : 0V
180Hz : 5V
150Hz : 0V
SYNC
180Hz, 3.3V, 50% Duty
150Hz, 3.3V, 50% Duty
180Hz, 3.3V, 50% Duty
150Hz, 3.3V, 50% Duty
INV_CTRL :5V
3.4V_ON : 5V
BURST_DIM
0-3.3V
0-3.3V
A_DIM
0-1.65V
0-1.65V
P201
AC INPUT
4.6 k‰ / 500 W
<Power board structure>
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1. No Power
(1) Symptom
1) Does not minute discharge at module.
2) Non does not come into the front LED.
2) Non does not come into the front LED.
(2) Procedure check
Is plug in power cord?
Plug in power cord.
Yes
No
Is connect the Line Filter and
Power Board Cable?
Connect Cable.
Yes
No
Is Normal the Fuse(F100) on
Power Board?
Replace Fuse.
Yes
No
Is connect the Power Board and
13P cable of Main Board?
Connect Cable.
Yes
No
After remove the cable connect to Power Board(except the SC100
connection cable), authorizes the AC Voltage marking on manual. When
ST-BY 5V does not operate, replace Power Board.
connection cable), authorizes the AC Voltage marking on manual. When
ST-BY 5V does not operate, replace Power Board.
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Does minute discharge
At Module?
Is the LVDS
cable normal?
Is the IC1111 output
normal?
Check the LCD Module
Yes
No
YES
Yes
Reconnect the LVDS
cable in P600.
No
Is the IC506 (FLI8662)
Output normal?
Replace the main
board
No
Yes
Is the LED change when
Push remote-control?
Replace the IR board
No
NO
Replace the
Power board.
Is output the normality
Low/High voltage except
stand-by 5V?
NO
2. No Raster
(1) Symptom
1) No OSD and image occur at screen.
2) It maintains the condition where the front LED is Blue
2) It maintains the condition where the front LED is Blue
(2) Procedure check
3. In case of occurring strange screen into specific mode
(1) Symptom
The screen does not become the display from specific input mode.
(RF, AV, Component, RGB, DVI).
(2) Check following
- Check the all input mode should become normality display.
- Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become normality display from the PIP mode or DW mode.
- 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 normal the Tuner?
Is normal the
FIL8662?
Check the tuner cable.
* Isn’t cable has broken?
* Is the cable connected
well from MPI card to tuner?
* Isn’t cable has broken?
* Is the cable connected
well from MPI card to tuner?
Cable inserts well.
Yes
No
No
Replace Tuner
No
Is normal the Input voltage, IIC
Communication and CVBS output?
Communication and CVBS output?
Yes
Is normal the Input voltage, IIC
Communication and HV sync?
Communication and HV sync?
No
Replace IC or Main Board
No
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