SHARP LC20VM2
Manual de Servicio

LC-20VM2

LC-121M2E LC-150M2E

6. LC-20VM2 ADJUSTING METHOD
The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust as follows.

6-1. Preparation for adjustment
(1)Use the exclusive-use AC adapter or stable DC power supply. AC adapter: UADP-0205CEZZ DC power supply: 13 (V) 5(A) (Total of the triple power supply)

6-2. Special mode setting procedure
Note: When a micro-controller (IC2001) is replaced, the initialization of the E2 memory is necessary. (1)After initialization of E2PROM the mode is changed to the adjustment mode. [Procedure] Connect TP2002 and TP2003 to GND, and turn on the power. [Description] All data are initialized. (2)Change to adjustment mode [Procedure] Short-circuit TP2007 to GND, and turn on the power. Or short-circuit TP2008 to GND, and turn on the power. Or holding down the [AV INPUT] key and [MENU] key, turn on the main power, and simultaneously press the (inspection process) [SELECT "] key and [VOL� ] key to change the mode to the adjustment mode. [Description] The manual adjustment or adjustment through communication with the automatic machine is performed. (3)Inspection mode [Procedure] Holding down the [AV INPUT] key and [MENU] key, turn on the power. [Description] � In the ordinary menu select �PICTURE� with the [SELECT] key, and decide with the [VOL] key. Then select �CONTRAST�, �TINT (only NTSC)�, �COLOR�, �BLACK LEVEL�, �SHARPNESS�, �RED� , and �BLUE� with the [SELECT] key, and decide with the [VOL] key. After that, adjust values with the [VOL] key. � In the ordinary menu select �SOUND� with the [SELECT] key, and decide with the [VOL] key. Then, select �TREBLE�, �BASS�, and �BALANCE� with the [SELECT] key, and decide with the [VOL] key. After that adjust values with the [VOL] key. � VOLUME, CONTRAST, TINT (only NTSC), COLOR, BLACK LEVEL, SHARPNESS, RED, BLUE, TREBLE, BASS, and BALANCE change as follows. ûMin.� ûCenter� ûMax.�

(4)Shipping setting mode [Procedure] Holding down the [AV INPUT] key and [MENU] key, turn on the main power, and simultaneously press the (inspection process) [SELECT '] key and [VOL+] key to change the mode to the adjustment mode. [Description] User adjustment and other values are taken as defaults. If AV1 is indicated as SETTING COMPLETE, setting has been completed.

6-3. How to exit from the special mode
Turn off the main unit power. 8