Service Manuals, User Guides, Schematic Diagrams or docs for : BEKO TV 12.7 chassis beko_12.7_adjustments

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1. ELECTRICAL ADJUSTMENTS

1.1 Supply Voltage Adjustment

Connect a digital voltmeter to the cathode of diode D607 at the AV mode of the TV and set the screen
voltage to the minimum with the screen potentiometer. Adjust the main supply voltage (B+) with P607
potentiometer to the following value (after supply adjustment, readjust Screen and focus voltage).
14"                   : 105 VDC (for A33EKC01X01)
20"                   : 118 VDC (for A48EJW011X21)
21"                   : 110 VDC (for A51EFS83X191)

2. SERVICE ADJUSTMENTS

To enter the Service Mode, `Service In/Out" button on the Service Remote Control or activate the
"Picture Menu" with the user remote control and press "9301" (Press "0" button to exit the Service
Mode).

"Red" , "Green", "Yellow" and "Blue" Teletext buttons are for Feature Setup, Geometry, White Balance
and IF menus respectively.




2.1 IF Adjustments

2.1.1 PAL SECAM BG/DK/I
    

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