BEKO chassis 14.2 free download

File name chassis_14.2.pdf

1. ELECTRICAL ADJUSTMENTS 1.1. Supply Voltage Adjustment Connect a digital voltmeter to the cathode of diode D611 at the AV1 mode of the TV and set the screen voltage to the minimum with the screen potentiometer. Adjust the main supply voltage (B+) with P601 potentiometer to the following value (after adjustment, readjust Screen voltage). 25" : 145 VDC 28" : 145 VDC (147 VDC for A66EAK071X11) 28" Pure Flat 16/9 : 140 VDC 28" Super Flat 16/9 : 140 VDC 29" Pure Flat : 125 VDC 29" Super Flat : 125 VDC 32" Pure Flat 16/9 : 140 VDC 32" Super Flat 16/9 : 131 VDC 33" : 158 VDC 2. SERVICE ADJUSTMENTS You need the special service remote control to enter and exit the service menu of the TV (you can order it from the manufacturer). All buttons of the Service RC are same with the user remote control, only service menu In / Ot was added to it (please see the picture below). Navigation Service In/Out : Enters to / exits from the Service Menu P+ / P- : Moves upward / downward inside the menu V+ / V- : Changes the value or option Green & Red : For screen adjustment (pls see the explanation below) OK : Changes the brightness, contrast values to 00, 3F and preset values sequentially (Its OSD is shown). When P+ / P- buttons pressed the service menu is re shown. 2.1. AGC Adjustment Apply a signal with amplitude 65