42LG50FD (CHASSIS:LE81D) - LG TV Service Manual (repair manual). Page 12

C

2008

- 12 -

This spec. sheet is applied to Singapore DTV manufactured
at LG TV Plant all over the world.

2.1 Because this is not a hot chassis, it is not necessary to

use an isolation transformer. However, the use of
isolation transformer will help protect test instrument.

2.2 Adjustment must be done in the correct sequence.
2.3 The adjustment must be performed at 25±5°C

temperature and 65±10% relative humidity if there is no
specified designation.

2.4 The input voltage of the receiver must be kept between

100~220V, 50/60Hz.

2.5 Before adjustment, execute Heat-Run for 5 minutes at

Full White mode. (Power on key)

Caution: - System control RS-232 Host should be “PC” for

adjustment. 

Press the FRONT-AV KEY on R/C for converting input
mode.
(change RS-232 Host : pc, BaudRate : 115200bps)

Note) HDMI1,2 & Volume 30,50,100 of FCR R/C is available

only DFT (Discrete Function Test) Mode.

(Fig)

O

Auto AV Color Balance (Adjustment of RF/AV/S-VIDEO)

• Required Equipments

- Remote controller for adjustment
- 802F Pattern Generator, Master (MSPG-925FA), etc.
- MSPG-925FA Pattern Generator

(Which has Video Signal: 100% Color Bar Pattern shown
in Fig)

=>  Model: 202 / Pattern : 65
• Method of Auto RF/AV/S-VIDEO Color Balance.

1) Press the FRONT-AV KEY on R/C for converting input

mode.

2) Input the Video Signal: 100% Color Bar signal into AV
3) Set the PSM to Vivid mode in the Picture menu.
4) Press ADJ key on R/C for adjustment.
5) Press  the 

▶

(Vol.+) key to operate the set, then it

becomes automatically

6) Auto-RGB OK means the adjustment is completed

O

Auto Component Color Balance adjustment (Adjustment of
Component.)

• Required Equipments

- Remote controller for adjustment
- 802F Pattern Generator, Master (MSPG-925FA), etc.
- MSPG-925FA Pattern Generator
(Which has 720p@60Hz YPbPr signal : 100% Color Bar
Pattern shown in Fig)

=> Model: 217 / Pattern: 65

- It is very import to use correct adjustment pattern like Fig.

# Within the pattern, color sequence should be aligned

: White-Yellow-Cyan-Green-Gray-Red-BLUE-BLACK
(If color sequence is reversed (Black -> …-> White), reverse
the pattern with REV key, when using Master pattern generator
like MSPG-925)

# If Minimum Black Level and/or Maximum White Level is not

correct, Do select 100% Color Bar Pattern.

• Method of Auto Component Color Balance (Input :

Component1)

1) Input the Component1 720p 100% Color Bar(MSPG-

925FA model:217, pattern:65) signal into Component.

2) Set the PSM to Vivid mode in the Picture menu.
3) Press the ADJ key on R/C for adjustment.
4) Press  the 

▶

(Vol.+) key to operate the set, then it

becomes automatically

5) Auto-RGB OK means the adjustment is completed

ADC RF/AV/S-VIDEO 

Component1  RGB

MSPG925FA

PAL

INPUT SELECT  AV1

Model:217 720P

Model: 60

Model: 202(PAL-BGDHI)

Pattern:65

1024*768 60Hz

Pattern: 65

100% Color Bar

Pattern: 65

100% Color Bar

100% Color Bar