DOWNLOAD LG 32LX5DCS-UA (CHASSIS:LA64A) Service Manual ↓ Size: 10.53 MB | Pages: 55 in PDF or view online for FREE

Model
32LX5DCS-UA (CHASSIS:LA64A)
Pages
55
Size
10.53 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lx5dcs-ua-chassis-la64a.pdf
Date

LG 32LX5DCS-UA (CHASSIS:LA64A) Service Manual ▷ View online

- 17 -
CURRENT PROBE : P6022A or same product
4.6 k‰ / 500 W
SC100
P203
P202
P401
400PF
3.15KV
400PF
3.15KV
P402
INPUT CONTROL SIGNAL
BURST DIMMING SIGNAL
INVERTER + POWER BOARD
VOLTAGE PROBE P6015A
or same product
VOLTAGE PROBE P6015A
or same product
INVERTER
CONNECTION
WIRE
INVERTER
TRANSFORMER
ON/OFF : 5V
SELECT
180Hz : 5V
150Hz : 0V
SYNC
180Hz, 3.3V, 50% Duty
150Hz, 3.3V, 50% Duty
INV_CTRL :5V
3.4V_ON : 5V
BURST_DIM
0-3.3V
A_DIM
0-1.65V
P201
AC INPUT
4.6 k‰ / 500 W
TROUBLESHOOTING
<Power board structure>
- 18 -
1. No Power
(1) Symptom
1) Does not  minute discharge at module. 
2) Non does not come into the front LED. 
(2) Procedure check
Is the power cord plugged in?
Plug in the power cord.
Yes
No
Is the Line Filter and Power
Board Cable connected?
Connect the Cable.
Yes
No
Is the Fuse(F100) on
Power Board normal?
Replace the Fuse.
Yes
No
Is the Power Board and 13P cable
of Main Board Cable connected?
Connect the Cable.
Yes
No
After removing the cables, connect them to the Power Board(except the
SC100 connection cable), and change the AC voltage marking to manual.
When ST-BY 5V does not operate, replace the Power Board.
- 19 -
Does minute discharge
At Module?
Is the LVDC 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 contol?
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 green.
(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.
(Re-Check it Swap) 
(3) In case of becomes unusual display from RF mode
Is the Tuner normal?
Is the FIL8662
normal?
Check the tuner cable.
- Isn’t cable has broken?
- Is the cable connected wellfrom
MPI card to tuner?
Cable inserts well.
Yes
No
No
Replace the Tuner
No
Is the Input voltage, IIC Communication
and CVBS output normal?
Yes
Is the Input voltage, IIC Communication
and HV sync normal?
No
Replace the IC or Main Board.
No
- 20 -
(4) In the case of becomes unusual display from S-video/AV mode
(5) In the case of becomes unusual display from Component, RGB mode
(6) In the case of becomes unusual display from HDMI mode
Is Video input of the AV
Jack(J501) normal?
Yes
Is the FIL8662
normal?
Check the input source.
- Is the source format suportable?
- Is the source device operate well?
- Is the cable connected well?
No
Is the Input voltage, IIC Communication
and HV sync normal?
No
Replace Main board.
No
Is R, G, B input and H, V
Sync of the J500 normal?
Yes
Is the FIL8662
normal?
Check the input source.
- Is the source format suportable?
- Is the source device operate well?
- Is the cable connected well?
No
Is the Input voltage, IIC Communication
and HV sync normal?
No
Replace Main board.
No
Is ouput of the HDMI Jack
(J300 or J301) normal?
Yes
Is the SIL9023
(IC302) normal?
Check the input source.
- Is the source format suportable?
- Is the source device operate well?
- Is the cable connected well?
No
Is the Input voltage, IIC Communication
and HV sync normal?
No
Replace the IC.
No
Yes
Is the FIL8662
normal?
Is the Input voltage, IIC Communication
and HV sync normal?
No
Replace Main board.
No
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