DOWNLOAD LG 50PS80BD-SA (CHASSIS:PB92A) Service Manual ↓ Size: 29.64 MB | Pages: 65 in PDF or view online for FREE

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Adjust 3 items at 3.1 PCB assembly adjustments “4.1.3
sequence” one after the order.

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Adjustment protocol

See ADC Adjustment RS232C Protocol_Ver1.0

(1) Pattern Generator : (MSPG-925FA)
(2) Adjust 480i Comp1 (MSPG-925FA:model :209, pattern

:65) - Comp1 Mode

(3) Adjust 1080p Comp1 (MSPG-925FA:model :225 , pattern

:65) - Comp1 Mode

(4) Addjust RGB (MSPG-925FA:model :225 , pattern :65) -

RGB-PC Mode

* If you want more information then see the below Adjustment

method (Factory Adjustment)

(1) aa 00 00: Enter the ADC Adjustment mode.
(2) xb 00 40: Change the mode to Component1 (No actions)
(3) ad 00 10: Adjust 480i Comp
(4) ad 00 10: Adjust 1080p comp
(5) xb 00 60: Change to RGB-PC mode(No action)
(6) ad 00 10: Adjust 1080p RGB
(7) xb 00 90: Endo of Adjustmennt

Adjustment component 480i/1080i and RGB 1080p is Gain
and Black level setting at Analog to Digital converter, and
compensate the RGB deviation

Adjustment remocon, 801GF(802B, 802F, 802R) or
MSPG925FA pattern generator
(It can output 480i/1080i horizontal 100% color bar pattern
signal, and its output level must setting 0.7V±0.1V p-p
correctly)

* You must make it sure its resolution and pattern cause every

instrument can have different setting

(Factory adjustment)

(1) ADC 480i Component1 adjustment

- Check connection of Component1 
- MSPG-925FA ==> Model: 209, Pattern 65

(2) Set Component 480i mode and 100% Horizontal Color Bar

Pattern(HozTV31Bar), then set TV set to Component1
mode and its screen to “NORMAL”

(3) ADC 1080p Component1 / RGB adjustment

- Check connection both of Component1 and RGB
- MSPG-925FA ==> Model: 225, Pattern 65

(4) Set Component 1080p mode and 100% Horizontal Color

Bar Pattern(HozTV31Bar), then set TV set to Component1
mode and its screen to “NORMAL” 

(5) After get each the signal, wait more a second and enter

the “IN-START” with press IN-START key of Service
remocon. After then select “7. External ADC” with navigator
button and press “Enter”. 

(6) After Then Press key of Service remocon “Right

Arrow(VOL+)”

(7) You can see “ADC Component1 Success”
(8) Component1 1080p, RGB 1080p Adjust is same method.
(9) Component 1080p Adjustment in Component1 input mode
(10) RGB 1080p adjustment in RGB input mode
(11) If you success RGB 1080p Adjust. You can see “ADC

RGB-DTV Success”

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Adjustment pattern : 480i / 1080p 60Hz Pattern

(1) It is established in VESA, for communication between PC

and Monitor without order from user for building user
condition. It helps to make easily use realize “Plug and
Play” function. 

(2) For EDID data write, we use DDC2B protocol.

(1) After enter Service Mode by pushing “ADJ” key,
(2) Enter EDID D/L mode.
(3) Enter “START” by pushing “OK” key. 

Caution: - Never connect HDMI & D-sub Cable when the user

downloading.
- Use the proper cables below for EDID Writing.

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Edid data and Model option download (RS232)

1) Using instruments

- Jig. (PC Serial to D-Sub connection) for PC, DDC

adjustment.

- S/W for DDC recording (EDID data write and read)
- D-sub jack
- Additional HDMI cable connection Jig.

2) Preparing and setting.

- Set instruments and Jig. Like pic.5), then turn on PC and

Jig. 

- Operate DDC write S/W (EDID write & read)
- It will operate in the DOS mode.

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HDMI-1 EDID table(HD) 

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HDMI-1 EDID table(Full HD) 

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HDMI-2 EDID table(HD)

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For write EDID data, setting Jig and another instruments.