Philips DELLP1230 Service Manual page 86

86
Dell P1230 M25P
9
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26,27,28,29
Hpll1,Hbuf,Href, Hcap
30. PLL2
31 EHT_compen.
32. Focus
Repair Flow Chart
pin26 determin the
pll1 loop filter
pin 27,28,29 H-Freq
working range
1.compare the HFLBand control the phase of HDRV
2.softstart
compensate for the H_size owing the load variation
to 7603 for the V dynamic focus
30K<freq.<130KHz