Repair Flow Chart (Continued)
V40 107P5
30K<freq.<71KHz
Pin30. PLL2
Pin9 determin the
pll1 loop filter
pin 8,6,4 H-Freq
working range
30kHz< freq. <92KHz
Pin9,8,6,4
PLL1,RO,CO, Hoscf
Pin26 determin the pll1 loop filter
Pin27,28,29 H-freq working range
Pin22,23,24
Hplll1,Hbuf,Href,Hcap
Pin21 EHT_compen.
compensate for the V_size
owing the load variation
1.compare pin 12 and control the phase of HDRV
2.softstart 14, 15, 16,
compensate for the H_size owing the load variation
Pin31 EHT_compen.
Pin32. Focus
to 7616 for the V dynamic focus
Hunlock pin is floating while pll1(pin26) is
unlock in searching mode
pin17. Hunlock
Pin30. IIC scl = hi
Pin31 IIC sda = hi
the initial sequence of IIC IC
7501,7301,7304
38
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