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Alignment and Adjustments 4. Alignment and Adjustments 4-1 Preadjustment 4-1-1 Factory Mode 4-1-3 When CRT Is Replaced 1. Do not attempt these adjustments in the Video Mode. 1. Make the following adjustments AFTER set- ting up after setting up purity and conver- 2. The Factory Mode adjustments are necessary gence : when either the EEPROM (IC902) or the CRT is replaced. White Balance Sub-Brightness 3. Do not tamper with the "Adjustment" screen Vertical Center of the Factory Mode menu. This screen is Vertical Size intended only for factory use. Horizontal Size Fail Safe (This adjustment must be the last 4-1-2 When EEPROM (IC902) Is Replaced step). 1. When IC902 is replaced all adjustment data 2. If the EEPROM or CRT is replaced, set PVA to revert to initial values. It is necessary to 40 (factory mode) and set SC as follows. re-program this data. 2. After IC902 is replaced, warm up the TV for 10 seconds. 4-2 Factory/Service Mode 4-2-1 Procedure for the "Adjustment" Mode 1. This mode uses the standard remote control. 4. Selection sequences for the all system: The Service Mode is activated by entering the following remote-control sequence : DOWN or UP key: (1) DISPLAYFACTORY. AGC>SCT>SBT>BLR>BLB>RG>GG>BG> VSL>VS>VA>HS>SC>CDL>STT>AKB> (2) STAND-BY DISPLAY MENU MUTE PDL>NDL>PSR>NSR>VOL>LCO>TXP> POWER ON. MVOL>FMWS>AGCS>OMD>SCL>PWL> AGN>PEK>ACL>FCO>SCBT>SSP>PSNS 2. The "SERVICE (FACTORY)" message will be displayed. The Service Mode has three compo- 5. The VOLUME keys increase or decrease the nents: ADJUST, OPTION,OPTION1,G2 Adjust adjustment values (stored in the and Reset. non-volatile memory) when Adjustment Mode is cancelled. 3. Access the Adjustment Mode by pressing the "VOLUME" keys ( Up or Down). The adjust- 6. Cancel the Adjustment Mode by re-pressing ment parameters are listed in the accompany- the "FACTORY" or "Power OFF" keys. ing table, and selected by pressing the CHAN- NEL keys (v ,w). 4-1 Alignment and Adjustments 4-2-2 Main Adjustment Parameter OSD FUNCTION RANGE INITIAL DATA REMARK AGC RF AGC