Service Manuals, User Guides, Schematic Diagrams or docs for : BEKO TV 20.2 chassis beko_20.2_buletin

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beko_20.2_buletin


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 Technical Change Note 9
CHASSIS : 20.2                                               DATE : 24/06/2002
SIZE    : All sizes                                          VERS : 01
Service Adjustments

In the service adjustments given in 20.2 service manual (page 22) do not include the following information.

1) Supply Voltage Adjustment
   Connect a digital voltmeter to the cathode of diode D614 at the AV1 mode of the TV. Adjust the main
   supply voltage with R150 potentiometer to the following values in the table below. Check the "BCL
   Threshold" item in the "video" of service menu was set as table below. After supply adjustment, readjust
   screen and focus voltage.
   CRT size        CRT name                   Supply Voltage        BCL Threshold (Service menu)
   28"             A66EAK071X44                      145 V                   +7
   28" 16/9 SF     W66EJU011X121                     130 V                   +7
   28" 16/9 PF     W66EJY011X121                     134 V                   +6
   29" SF          A68EGD038X022                     133 V                   +7
   29" PF          A68QCP891X232                     130 V                   +8
   32" 16/9 SF     W76EGV023X522                     133 V                   +8
   32" 16/9 PF     W76EJY011X121                     134 V                   +8
   33"             A80QCF340XV1                      155 V                   +8

2) AGC adjustment
   



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