SHARP LC20A2E
Manual de Servicio

LC-20A2E

ADJUSTING PROCEDURE OF EACH SECTION
[1] Entering the MAIN side adjustment process mode
There are three methods below. 1) Press the �Adjustment process key� on the remote control after turning on the power. 2) Pressing both the MENU key and the TV/VIDEO key on the main body, turn on the power. Then, press the volume DOWN key and the tuning UP key at the same time. 3) Turn on the power with falling either KEY4 (pin 81 of microcomputer) or KEY5 (pin 82 of microcomputer) to �L�. [Note] For the method 3), the ROM is initialized at the same time. Therefore, 3) must be executed if IC2004 or IC2001 is changed. For 1) or 2), the main body only enters the MAIN side adjustment process.

[2] Entering the TUNER side adjustment process mode
4) Entering the TUNER side adjustment process MENU key on the main body � Tuning UP key (remote control) � Select the position shown in the figure below and press the M key (remote control) within 1 second. � Enters the adjustment process.

Direct control at TV

Brightness Contrast Colour

: select

M: Back E: End

[3] Adjustment
MAIN side adjustment (Press the �M� key to move the cursor and press the volume UP/DOWN key to make an adjustment.) � Power supply voltage adjustment (+B 5V) � Model setting � Inch size setting � COMMON BIAS adjustment of LCD module � CUTOFF adjustment TUNER side adjustment (Press the tuning UP/DOWN key to move the cursor and press the volume UP/DOWN key to make an adjustment.) � Horizontal size adjustment (LCD adjustments) � Video adjustment (other adjustments) Y delay Subcontrast Subcolour Subbrightness Tint offset AGC gain start The TUNER side adjustment is possible. However, it is recommended to replace EAROM (I2).

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