Service manual

LC-10A2H-S/A

LC-10A2M-S/A

4. Initialization

Here is the procedure of initializing the EEPROM and making model number and size settings.

4-1. Get Pins (81) and (82) of the IC2001 (microprocessor) grounded and turn on the power.

4-2. Select a model number (A1, A2H, A2U). For Models LC-10A2H and LC-10A2M, select A2H.

4-3. Select a size in inches (10, 12, 15, 20). For Models LC-10A2H and LC-10A2M, select 10.

4-4. Get Pins (81) and (82) of the IC2001 (microprocessor) back to normal.

5. Adjustments

5-1. +B adjustment

Vary the “+B-ADJ” setting on Page 1 of the adjustment process so that the voltage at pin 49 of SC401 be 5.00

±0.02 V.

Note : Adjust precisely to 5.0 V because this level will be used as supply voltage reference.

5-2. Counter-bias adjustment

Vary the “COM BIAS” setting on Page 2 of the adjustment process so that the contrast be sharpest (black

looks most sinking). The adjustment guideline is around 117 for Model LC-10A2H.

5-3. White balance adjustment

Vary the “RCUTOFF” and “BCUTOFF” settings to achieve optimum white balance.

Note : For the “RCUTOFF” and “BCUTOFF” settings, keep the readings in the range of -10 to +10. If out of

this range, the user-adjustable range is reduced.

6. Factory settings

» When using the adjustment remote controller:

The factory settings are made using the adjustment remote controller. Here are some differences between the

different models.

Model number Key name Remote control code Setting S-SYSTEM OSD language for settings

LC10A2H Factory setting 1 100000111111110 I CHINESE

LC10A2M Factory Setting 2 100000001010110 B/G ENGLISH

» When not using the adjustment remote controller:

(Applicable only with Model LC-10A2H. For Model LC-10A2M, make the following settings, and select English

and B/G for OSD language and S-SYSTEM, respectively.)

Hold down the TV/VIDEO and MENU keys on the TV set and turn on the power. Make sure the character “K”

appears at the top left on the screen. Then press the VOLUME UP and CH UP keys at the same time.