DOWNLOAD LG 32LG5600 (CHASSIS:LD85D) Service Manual ↓ Size: 6.27 MB | Pages: 27 in PDF or view online for FREE

<Caution>
- System control RS-232 Host should be “PC” for adjustment.
- Before AV ADC Calibration, execute the “Module selection”.

- Remote controller for adjustment
- MSPG-925FS Pattern Generator (Which has Video

Signal: 7 Color Bar Pattern shown in Fig. 1)
=> Model: 202 / Pattern: 65

1) Input the Video Signal : 7 Color Bar signal into AV3.
2) Set the PSM to Dynamic mode in the Picture menu.
3) Press ADJ key on R/C for adjustment.
4) Press the 

G

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

becomes automatically.

5) On bottom side of OSD, “AV OK” means the adjustment

is completed.

- Remote controller for adjustment
- MSPG-925FS Pattern Generator (Which has 720p/50Hz

YPbPr output Pattern shown in Fig.1)
=> Model:215/Pattern: 65

1) Input the Component 720p/50Hz 7 Color Bar(MSPG-

925FS model:215, pattern:65) signal into Component.

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

G

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

becomes automatically.

5) On bottom side of OSD, “Component OK” means the

adjustment is completed.

- Remote controller for adjustment
- MSPG-925F Pattern Generator (Which has XGA

[1024*768] 60Hz 8color bar 100% pattern shown in Fig.1)

1) Input the PC 1024x768@60Hz 100% Color Bar pattern

(MSPG-925F model:65, pattern:60) into RGB. 
(Using D-sub to D-sub cable)

2) Set the PSM to Dynamic mode in Picture menu.
3) Press the IN-START key on R/C for adjustment
4) Press the 

G

(Vol.+) key operate To set , then it becomes

automatically.

5) On bottom side of OSD, “RGB OK” means the

adjustment is completed.

* Test Equipment

Color Analyzer (CA-210/CH.9)
-> When you adjust LCD color temperature, on Color
analyzer (CA-210), you should use Channel 9 which is
Matrix compensated (White, Red, Green, Blue revised) by
CS-1000 and adjust in accordance with White balance
adjustment coordinate which is specified on the next.

* Color temperature standards according to CSM and Module

Cool : 11,000k
Medium : 9,300k
Warm : 6,500k

* White balance adjustment coordinate and color temperature

- PC (for communication through RS-232C)

-> UART Baud rate : 115200 bps

- Luminance Y AV : upper 200 cd/m

2

≥ (Typ : 350 cd/m

2

)

-> Applying to Cool, Medium, Warm mode

* Connecting picture of  the measuring instrument (On

Automatic control )
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push control R/C IN-START -> Enter the
mode of White-Balance, the pattern will come out.

* Measurement color analyzer : CS1000 or CA210(CH 9)

- 12 -

ADC

RF/AV/S-VIDEO

Component

RGB-PC

MSPG925FS PALJ

Model:215 (720P)

Model: 60

INPUT SELECT       AV3

Pattern:65

(1024*768 60Hz)

Model: 202 (PAL-BGDHI) * 720P/50Hz 

Pattern: 65

Pattern: 65

7 Color Bar

* PAL 7 Color Bar

x

0.276

0.276±0.002

y

0.283

0.283±0.002

∆uv

0.000

0.000

x

0.285

0.285±0.002

y

0.293

0.293±0.002

∆uv

0.000

0.000

x

0.313

0.313±0.002

y

0.329

0.329±0.002

∆uv

0.004

0.004

<Fig. 2> Connecting picture (On Automatic Control)

- 13 -

* Auto adjustment Map (RS-232C)

* Auto-control interface and directions

1) Adjust in the place where the influx of light like floodlight

around is blocked. (illumination is less than 10ux).

2) Adhere closely the Color Analyzer (CA-210) to the module

less than 10cm distance, keep it with the surface of the
Module and Color Analyzer’s Prove vertically. (80~100°).

3) Aging time  

- After aging start, keep the power on (no suspension of

power supply) and heat-run over 15 minutes.

- Using ‘no signal’ or ‘full white pattern’ or the others,

check the back light on.

(set:RS-233 Host:PC, Baud Rate:115200bps, Download:Cortez)

: Inside pattern is used when white balance is controlled.
Connect as below figure and click the start button on W/B
execution program. W/B is automatically processing
Cool_Medium_Warm in order. 
When W/B is completed, you can see ‘OK’ on PC monitor.

- One of R Gain / G Gain / B Gain should be kept on 80, and

others  are controlled lowering from 80 

1) Press ‘power on’ of the control R/C, set heat run to white by

pressing 

G

, and heat run over 15 minutes. (Set : RS-233

Host : PC, Baud Rate : 115200bps, Download : Cortez)

2) Zero Calibrate CA-210, and when controlling, stick the

sensor to the center of LCD module surface.

3) Double click In-start key on Controlling R/C and get in ‘white

balance’.

4) Set test-pattern on and display inside pattern. Control is

carried out on three color temperature, COOL, MEDIUM,
WARM. (Control is carried out three times,)

5) When the R/G/B GAIN is 80 on OSD, it is the FULL

DYNAMIC Range of the Module. In order to control white
balance without the saturation of FULL DYNAMIC Range
and DATA, one of R Gain / G Gain / B Gain should be kept
on 80, and other two is controlled lowering from 80.

* Color Temperature: Cool, Medium, Warm

1) When R GAIN is set to 80

- Control G GAIN and B GAIN by lowering from 80. 

2) When B GAIN is set to 80

- Control R GAIN and G GAIN by lowering from 80.

3) When G GAIN is set to 80

- Control R GAIN and B GAIN by lowering from 80.

One of R Gain / G Gain / B Gain should be kept on 80,
and adjust other two lower than 80.
(When R/G/B GAIN are all 80, it is the FULL DYNAMIC
Range of Module)

(1) Setting up like bottom figure (After setting white balance,

this is set)
(Setting : Press IN-START key in the Adjust remote control.
Select “System Control 2” by using 

D

/

E

(CH+/-) key, and

press 

A

(ENTER). Using Adjust remote control, RS-232

Host & Baud Rate & Download value change
RS-232 Host:PC, Baud Rate:115200bps, Download:Cortez)

(2) Bar-code scanning

1) Push the menu button in DTV mode. 

Select the SETUP -> Diagnostics -> To set

2) Check the Serial Number.

Type

LD82D

Baud Rate

Data bit

Stop bit

Parity

115200

8

1

None

Index

Cmd 1 Cmd 2 Data Min Value

Max Value

R-Gain_Normal

j

a

00(00)

128(80)

G-Gain_Normal

j

b

00(00)

128(80)

B-Gain_Normal

j

c

00(00)

128(80)

R-Gain_Warm

j

d

00(00)

128(80)

G-Gain_Warm

j

e

00(00)

128(80)

B-Gain_Warm

j

f

00(00)

128(80)

R-Gain_Cool

j

g

00(00)

128(80)

G-Gain_Cool

j

h

00(00)

128(80)

B-Gain_Cool

j

i

00(00)

128(80)

R-Offset_Normal

l

j

00(00)

128(80)

G-Offset_Normal

l

k

00(00)

128(80)

B-Offset_Normal

l

l

00(00)

128(80)

R-Offset_Warm

l

m

00(00)

128(80)

G-Offset_Warm

l

n

00(00)

128(80)

B-Offset_Warm

l

o

00(00)

128(80)

R-Offset_Cool

l

p

00(00)

128(80)

G-Offset_Cool

l

q

00(00)

128(80)

B-Offset_Cool

l

r

00(00)

128(80)

w

b

00

Starting W/B ADJ

w

b

10

Using internal Pattern

w

b

ff

Ending W/B ADJ

- 14 -

Start check

Manufacture’s model

passage

1. Check the Power Off

status.

Does the whole
screen appear?

Is it 

identical to when the

power is off?

No

Yes

No

Yes

Yes

Yes

Yes

2. Check the Interface

signal status.

Is the Interface 

signal operating?

Yes

3. Check the St-by 5V

signal circuit.

Does the 

low pressure output

appear?

Does the 

St-by 5V signal 

appear?

No

No

Yes

4. Check the 5V Monitor

signal circuit.

Does the 

5V Monitor signal 

appear?

No

7. Check the VSC Vs-ON

signal 

Does the 

high tension output

appear?

Does the 

VSC signal Vs-ON

appear?

No

No

Does the

high tension 

output voltage

occur?

When

removing  the Y B/D

Module input connector,

does output voltage

drop?

When the

Y, Z B/D Module

input connector, does Power

Board high tension 

output voltage

drop?

No

No

No

9. Check the Power

Board Output high

tension circuit

Yes

10. Check the Z B/D

Module output circuit

Yes

When 

removing the Z B/D

Module input connector,

does output voltage

drop?

11. Check the Y B/D

Module output circuit

Yes

Yes

8. Check the Vs, Va

voltage output circuit.

Does the 

Vs, Va voltage output

appear?

No

Yes

Yes

5. Check the VSC RL-ON

signal.

Does the 

VSC signal RL-ON

appear?

No

6. Check the VSC low

pressure output

Does the 

VSC low pressure

output appear?

No

- 15 -

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

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 appropriate Fuse(F101) on

the Power Board?

Replace the Fuse.

Yes

No

Is the Power Board and 13P of

VSC Board Cable connected?

Connect the Cable.

Yes

No

After removing the cables, connect them to the Power Board(except the
SC101 connection cable), and change the AC voltage marking to manual.
When ST-BY 5V does not operate, replace the Power Board.