15LS1R-MG (CHASSIS:CL-81) - LG TV Service Manual (repair manual). Page 10

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Check Input and Signal items. (cf. work instructions)

1. TV
2. AV (CVBS/ S-Video)
3 Component
4. H/P Out

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Convert to AV in Input-Mode

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Signal equipment displays 0.7V, 8 Step color pattern.
(Model:207, Pattern: 38 at MSPG925L)

- Output Voltage  :  700  mVp-p
- Impress Resolution 576i and Color pattern which

follows in the MSPG925L. 

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Adjust by commanding AUTO_DCXO (0xFC) 0x00

0x00 instruction.

[Adjustment pattern(DCXO)]

If DDC CMD do n't  work, please check below.
1. Enter SVC menu by  SVC Remote controller
2. Enter "ETC" menu
Check please,  IIC_SW is "0" or "1".
- IIC_SW  "0" : ADC calibration with auto adjustment equipment..
- IIC_SW  "1" : Factory default (Shipping condition), DDC

Communications(DDC2B).

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Above 30 minutes H/run in RF no signal 

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15 Pin D-Sub Jack is connected to the signal of

Pattern Generator.

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Set Statement

Input : CVBS
Contrast : 100(Max)
Brightness : 50
CSM : Normal

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Signal equipment displays

Output Voltage : 700  mVp-p
Output Mode : Full White pattern (100 IRE)

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Confirm whether luminance is over 260cd or not

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Input Full White Pattern

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Set CSM : Normal (9300K)

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Confirm whether x = 0.283±0.03, y=0.298±0.03 or not

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Set CSM : Warm (6500K)

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Confirm whether color coordinate is x= 0.313±0.03,

y=0.329±0.03 or not

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Set CSM : Warm (11000K)

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Confirm whether color coordinate is x= 0.274±0.03,

y=0.286±0.03 or not

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After confirming Color coordinates, Must return to

Normal