DOWNLOAD LG 50PM4MA-WA (CHASSIS:PM75A) Service Manual ↓ Size: 6.31 MB | Pages: 25 in PDF or view online for FREE

- 13 -

Tool Option1

Tool Option2

Area Option

Option1

Option2

Option3

Option4

System Control1

System Control2

System Control2

Power-off History

Panel Control

Fan Control

Side AV

BOOST

Woofer

Sound Settings

Tuner Num.

EYE

INDEX

VFD

FULL

HDMI Type (S or A)

200PR

ACMS

TEXT

CH+AU

SYS

A2 ST

I  II  SAVE

HDEV

V-Curve

MONO

Scart

CSM

Default Lang.

LANG

T LANG

0/1

0/1

0/1

32LB/37LB/42LB/37LC/42LC/47LB

No/1/2 Tuner

0/1

0/1

0/1

0/1

None/1-HDMI/2-HDMI

0/1

0/1

Off/Top/Flop

0/1

BGIDKL / BGIDKM

0/1

0/1

0/1

0/1

0/1

2 Scarts / 2 Components

Normal / Warm / Cool

English........

/ EU-East / Non-EU 8 / Non-EU etc

0~4

- 14 -

1

2

3

4

5

6

7

8

9

10

11

12

Power

Volume Level

Main Picture Input

Main Last Channel

Mute

ARC

Station

Auto Programme

Manual Programme

Programme Edit

Favorite Programme

Picture

PSM

Dynamic

Contrast

Brightness

Colour

Sharpness

CSM

XD

Advanced

Reset

Sound

SSM

AVL

Balance

Speaker

Time

Clock

Off time

On time

Auto sleep

Special

Language

Child Lock

Set ID

XD Demo

Screen

Auto config.

Manual config.

XGA/VGA mode

ARC

PFP Transparency

Reset

Off

30

RGB

Off

16 : 9

None

Dynamic

100

50

50

50

Cool

Auto

Flat

Off

Off

0

50

50

On

—:—

Off

Off

Off

English

Off

1

To start

Variable by each mode

User control

Area management

- 15 -

1) Does not  minute discharge at module. 
2) Non does not come into the front LED. 

Check the
Power Board

No Power

(Power Indicator OFF)

Check the
Power Board

Check the P103

(ST_5V)

Check the P103

(PWR_ON OFF)

Yes

Check the X801

(19.66MHz)

1. Check the IC101
2. Check the All Vcc of IC101

Yes

Check the IC306

(/SYS_RESET)

YES(HIGH)

YES(HIGH)

No(low)

No(low)

Check the X801

No

Check the
Reset IC

No(low)

Plug in the
power cord

Connect the

cable.(EL11)

Yes

Is the power cord
plugged in? 

Yes

Are the line filter and
PSU connected?

Yes

Is the correct fuse for

the PSU in place?

Plasma(F101)

After remove all cables connected to 
PSU(except the CN101), authorizes the AC 
voltage marking on manual. 
When ST-by 5V does not operate, replace the PSU

Yes

Is the PSU and

13pin cable connected

to the VSC board?

No

No

Replace the
fuse

No

Connect the
13pin cable.

No

- 16 -

1) After lighting up once, it does not discharge 

minutely from module.

2) The rely falls.(there is an audible “click”) 
3) The color of the front LED turns from green to red.

Is the Power Board

normal ?

Replace Power Board.

Is the output the normal Low/High
voltage except for the Stand-by 5V?

Yes

No

No

Is the connector

normal?

Replace the Power Board.

Replace the fuse.

Replace the Y-Board.

After connectiong each connector the
normality it operates?

Yes

No

No

Is the Y-Board

normal?

Is the appropriate

fuse (FS2,FS3) on the

Y-B/D?

Is the output voltage
normal after removing the
P1 connector of the Y-B/D?

Yes

No

No

Replace the Z-Board.

Is the Z-Board

normal?

Is appropriate

fuse (FS1,FS2) on 

the Z-B/D?

Is the output voltage

normal after removing the

P1 connector of the Z-B/D?

Yes

No

No

Is the X- Board

normal?

Is the 

output voltage normal 

after removing the  P100, 110,

200, 210 connector of

the X-B/D?

After removing the P100, 110 and the output
voltage is normal : Replace the Right X-B/D
After removing the P200, 210 and the output
voltage is normal : Replace the Left X-B/D

No

Yes

Replace the fuse.

Yes

Start Check