LG 29LN300B, Service Manual

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LGE Internal Use Only

Copyright  © 

  LG Electronics. Inc. All right reserved. 

Only for training and service purposes

4. Total Assembly line process

4.1. Tool option & ADC Check

1) Press "Power on" key of service remote control.

2) Connect RS232 Signal Cable to RS-232 Jack.

3)  Check the 'Tool Option' (Refer to the BOM Comments or 

Adjustment spec) 

4) Check the ‘ADC’ is ok.

4.2.  Model name & Serial number Down-

load

4.2.1. Model name & Serial number D/L 

1) Press "Power on" key of service remote control.

2) Connect RS232 Signal Cable to RS-232 Jack.

3) Write Serial number by use RS-232.

4)  Must check the serial number at the Diagnostics of SET UP 

menu. (Refer to below).

4.2.2. Method & notice

1) Serial number D/L is using of scan equipment.

2)  Setting of scan equipment operated by Manufacturing 

Technology Group.

3)  Serial number D/L must be conformed when it is produced 

in production line, because serial number D/L is mandatory 

by D-book 4.0

*  Manual Download (Model Name and Serial 

Number)

If the TV set is downloaded By OTA or Service man, Some-

times model name or serial number is initialized.( Not always) 

There is impossible to download by bar code scan, so It need 

Manual download.

1)  Press the 'Instart' key of ADJ remote controller.

2)  Go to the menu 'Model Number D/L' like below photo.

3)  Input the Factory model name(ex 24MN33D) or Serial 

number like photo.

4)  Check the model name Instart menu → Factory name 

displayed (ex GP4-LOW)

5)  Check the Diagnostics (DTV country only) → Buyer model 

displayed (ex 24MN33D)

4.3. Function Check

4.3.1. Check display and sound

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

1) TV

2) AV (CVBS)

3) COMPONENT (480i)

4) RGB (PC : 1366 x 768 @ 60 Hz)

5) HDMI (PC : 1366 x 768 @ 60 Hz)

* Display and Sound check is executed by Remote controller

→ Caution :  Not to push the INSTOP KEY after completion if 

the function inspection.

4.3.2. PIP Check

1) Press "Power on" key of service remote control.

2) Input RGB & TV(ATV or DTV) signal.

3) Set Input mode to RGB.

4) Press ‘PIP" key of ADJ remote controller

5) Check TV Video & Audio signal of Sub picture.