Philips DELLP1230 Service Manual page 85

17. Hunlock
18. IIC SCL = hi
19 IIC SDA = hi
20 asymmetry EW
output
21 EHT_compen.
22,23,24
VAGC,VREF,VCAP
Repair Flow Chart
Hunlock pin is floating while pll1(pin26) is
unlock in searching mode
initial fail could be these of IC
7421,7701,7781,7336
to 7503 pin30
for soft start
compensate for the V_size
owing the load variation
pin22 determin the AGC
pin23,pin24 determin frequency
85
Dell P1230 M25P
9
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50Hz< freq. <160Hz