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Download BEKO docs - TV - Conventional CRT, LCD Projectors, TFT, Plasma, Big Screen, HDTV, Home theater - Service manuals, repair tips

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Original Chassis:14.1
Descr:Service ADJ.
Group:Electronics > Consumer electronics > TV >
Uploaded:2013-02-21 21:52:19
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CHASSIS 14.1 ELECTRICAL ADJUSTMENTS.pdfCHASSIS 14.1 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). 20" : 119 VDC 21" : 116 VDC (117 VDC for A51EAL155X01) 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" : 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 / Out is added to it (please see the picture below). Navigation Service In/Out P+ / PV+ / VOK : Enters to / exits from the Service Menu : Moves upwa

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