DOWNLOAD LG 50PQ30TD-SB (CHASSIS:PB91A) Service Manual ↓ Size: 22.37 MB | Pages: 80 in PDF or view online for FREE

50  |  C4  8E  21  00  00  18  8C  0A  D0  8A  20  E0  2D  10  10  3E

60  |  96  00  13  8E  21  00  00  18  0E  1F  00  80  51  00  1E  30

70  |  40  80  37  00  C4  8E  21  00  00  1C  00  00  00  00  00  1C

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HDMI-3 EDID table

0

1   2   3   4   5   6   7   8   9   A   B   C   D   E   F

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0  |  00  FF  FF  FF  FF  FF  FF  00  1E  6D  01  00  01  01  01  01

10  |  00  13  01  03  80  73  41  96  0A  CF  74  A3  57  4C  B0  23

20  |  09  48  4C  AF  CF  00  31  40  45  40  61  40  81  80  A9  40

30  |  01  01  01  01  01  01  66  21  50  B0  51  00  1B  30  40  70

40  |  36  00  C4  8E  21  00  00  1E  1A  36  80  A0  70  38  1F  40

50  |  30  20  35  00  C4  8E  21  00  00  1A  00  00  00  FD  00  38

60  |  4C  1E  50  11  00  0A  20  20  20  20  20  20  00  00  00  FC

70  |  00  4C  47  20  54  56  0A  20  20  20  20  20  20  20  01  5C

0

1   2   3   4   5   6   7   8   9   A   B   C   D   E   F

__________________________________________________

0  |  02  03  20  F1  48  84  05  03  02  20  22  10  1F  26  15  07

10  |  50  09  07  07  67  03  0C  00  30  00  38  2D  E3  05  03  01

20  |  01  1D  00  72  51  D0  1E  20  6E  28  55  00  C4  8E  21  00

30  |  00  1E  01  1D  80  18  71  1C  16  20  58  2C  25  00  C4  8E

40  |  21  00  00  9E  8C  0A  D0  8A  20  E0  2D  10  10  3E  96  00

50  |  C4  8E  21  00  00  18  8C  0A  D0  8A  20  E0  2D  10  10  3E

60  |  96  00  13  8E  21  00  00  18  0E  1F  00  80  51  00  1E  30

-  70  |  40  80  37  00  C4  8E  21  00  00  1C  00  00  00  00  00  0C

O

Analog (RGB) EDID table

0

1   2   3   4   5   6   7   8   9   A   B   C   D   E   F

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0  |  00  FF  FF  FF  FF  FF  FF  00  1E  6D  01  00  01  01  01  01

10  |  00  13  01  03  18  73  41  96  0A  CF  74  A3  57  4C  B0  23

20  |  09  48  4C  AF  CF  00  31  40  45  40  61  40  81  80  A9  40

30  |  01  01  01  01  01  01  66  21  50  B0  51  00  1B  30  40  70

40  |  36  00  C4  8E  21  00  00  1E  1A  36  80  A0  70  38  1F  40

50  |  30  20  35  00  C4  8E  21  00  00  1A  00  00  00  FD  00  38

60  |  4C  1E  50  11  00  0A  20  20  20  20  20  20  00  00  00  FC

70  |  00  4C  47  20  54  56  0A  20  20  20  20  20  20  20  01  C4

0

1   2   3   4   5   6   7   8   9   A   B   C   D   E   F

_________________________________________________

0  |  02  03  04  00  0E  1F  00  80  51  00  1E  30  40  80  37  00

10  |  C4  8E  21  00  00  1C  00  00  00  00  00  00  00  00  00  00

20  |  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00

30  |  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00

40  |  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00

50  |  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00

60  |  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00

70  |  00  00  00  00  00  00  00  00  00  00  00  00  00  00  00  25

See Working Guide if you want more information about EDID
communication.

(1) Color Analyzer: CA-210 (CH 9)

- Using LCD color temperature, Color Analyzer (CA-210)

must use CH 9, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one. 

(2) Auto-adjustment Equipment (It needs when Auto-

adjustment - It is availed communicate with RS-232C :
Baud rate: 115200) 

(3) Video Signal Generator MSPG-925F 720p, 216Gray

(Model: 217, Pattern 78)

(1) Using Inner Pattern

(2) Using HDMI input

If you can’t adjust with inner pattern, then you can adjust it
using HDMI pattern. You can select option at “Ez-Adjust Menu
- 7. White Balance” there items “NONE, INNER, HDMI”. It is
normally setting at inner basically. If you can’t adjust using
inner pattern you can select HDMI item, and you can adjust.

In manual Adjust case, if you press ADJ button of service
remocon, and enter “Ez-Adjust Menu - 7. White Balance”,
then automatically inner pattern operates. (In case of “Inner”
originally “Test-Pattern. On” will be selected in The “Test-
Pattern. On/Off”. 

(1) Connect all cables and equipments like (Fig. 1)
(2) Set Baud Rate of RS-232C to 115200. It may set 115200

orignally.

(3) Connect RS-232C cable to set
(4) Connect HDMI cable to set

- 13 -

(Fig. 1) Connection Diagram for Adjustment White balance

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RS-232C Command (Commonly apply) 

- “wb 00 00”: Start Auto-adjustment of white balance.
- “wb 00 10”: Start Gain Adjustment (Inner pattern) 
- “jb 00 c0” : 
-  ...
- “wb 00 1f”: End of Adjustment
- If it needs, offset adjustment (wb 00 20-start, wb 00 2f-end)
- “wb 00 ff”: End of white balance adjustment (inner pattern

disappear)

Notice) Adjustment Mapping information

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When Color temperature (White balance) Adjustment

(Automatically)
- Press “Power only key” of service remocon and operate

automatically adjustment.

- Set BaudRate to 115200.

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You must start “wb 00 00” and finish it “wb 00 ff”.

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If it needs, then adjustment “Offset”.

(1) Test Equipment: CA-210

Using PDP color temperature, Color Analyzer (CA-210)
must use CH 10, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one. 

(2) Manual adjustment sequence is like bellowed one.

1) Turn to “Ez-Adjust” mode with press ADJ button of

service remocon.

2) Select “10.Test Pattern” with CH+/- button and press

enter. Then set will go on Heat-run mode. Over 30
minutes set let on Heat-run mode.

3) Let CA-210 to zero calibration and must has gap more

10cm from center of PDP module when adjustment. 

4) Press “ADJ” button of service remocon and select

“7.White-Balance” in “Ez-Adjust” then press “

G

” button

of navigation key.
(When press “

G

” button then set will go to full white

mode)

5) Adjust at three mode (Cool, Medium, Warm)
6) If “cool” mode 

Let B-Gain to 192 and R, G, B-Cut to 64 and then
control R, G gain adjustment High Light adjustment.

7) If “Medium” and “Warm” mode Let R-Gain to 192 and R,

G, B-Cut to 64 and then control G, B gain adjustment
High Light adjustment.

8) All of the three mode 

Let R-Gain to 192 and R, G, B-Cut to 64 and then
control G, B gain adjustment High Light adjustment.

9) With volume button (+/-) you can adjust.
10) After all adjustment finished, with Enter (

V

key) turn to

Ez-Adjust mode. Then with ADJ button, exit from
adjustment mode

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White Balance adjustment coordination and color temperature.

(1) Using CS-1000 Equipment. 

- COOL : T=11000K, 

∆

uv=0.000, x=0.276 y=0.283 

- MEDIUM  : T=9300K, 

∆

uv=0.000, x=0.285 y=0.293 

- WARM  : T=6500K, 

∆

uv=0.000, x=0.313 y=0.329 

(2) Using CA-210 Equipment. (10 CH) 

Contrast value: 216 Gray 

- 14 -

 

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Brightness Spec.

Press In-Start button of Service Remocon then set the
“4.Baud Rate” to 115200. Then check RS-232C control and 

(1) Models: All models which PB91A/PB92A Chassis. 
(2) Press “In-Start” button of Service Remocon, then enter

the “Option” Menu with “PIP CH-” Button 

(3) Select one of these three (USA, CANADA, MEXICO)

defends on its market using “Vol. +/-” button.

[

Caution : Don’t push The INSTOP KEY after completing the

function inspection.

Check the connection between set and power cord

(1) Fully connected (Between set and power cord) set enter

the Auto-test sequence.

(2) Connect D-Jack AV jack test equipment.
(3) Turn on Auto-controller(GWS103-4)
(4) Start Auto GND test.
(5) If its result is NG, then notice with buzzer.
(6) If its result is OK, then automatically it turns to ESD Test.
(7) Operate ESD test
(8) If its result is NG, then notice with buzzer.
(9) If its result is OK, then process next steps. Notice it with

Good lamp and STOPER Down.

(1) Test Voltage 

- GND: 1.5KV/min at 100mA
- Signal: 3KV/min at 100mA

(2) Test time: just 1 second.
(3) Test point

- GND test: Test between Power cord GND and Signal

cable metal GND.

- ESD test: Test between Power cord GND and Live and

neutral.

(4) Leakage current: Set to 0.5mA(rms)

(Va, Vs voltage adjustment) <— ONLY PDP

To supply the Va, Vs voltage that the module want.

Stick for adjustment, DMM

(4) Adjustment Method

Adjustment method for Power board
- After Changing RF snow noise.

1) Va adjustment

Connect + terminal of D. M..M. to Va pin of P812,

connect -terminal to GND pin of P812.

After turning VR901,voltage of D.M.M adjustment as

same as Va voltage which on label of panel right/top
(deviation; ±0.5V)

2) Vs adjustment 

Connect + terminal of D. M..M. to Vs pin of P812,

connect - terminal to GND pin of P812.

After turning VR951, voltage of D.M.M adjustment as

same as Vs voltage which on label of panel right/top  (
deviation ; ±0.5V)

- 15 -

 

Connection Diagram of power adjustment for measuring.

3) 60” FHD power

Connect + terminal of D. M..M. to Va pin, connect -

terminal to GND pin.

After turning VR901,voltage of D.M.M adjustment as

same as Va voltage which on label of panel right/top
(deviation; ±0.5V)

(1) R-Gain adjustment Value (default  128)
(2) G-Gain adjustment Value (default  128)
(3) B-Gain adjustment Value (default  128)
(4) R-Offset adjustment Value (default  128)
(5) G-Offset adjustment Value (default  128)
(6) B-Offset adjustment Value (default  128)

(1) Threshold Down Low

20

(2) Threshold Up Low

23

(3) Threshold Down High

70

(4) Threshold Up High

75

(1) Put the USB Stick to the USB socket
(2) Press Menu key, and move OPTION 

(3) Press “FAV” Press 7 times.

(4) Select download file (epk file)

- 16 -

VR901

VR951

60” power board