107P2 CM 25 GSIII75
Repair Flow Chart (Continued)
Go to cover page
Hunlock pin is floating while pll1(pin26) is
17. Hunlock
unlock in searching mode
18. IIC sda = hiinitial fail could be these of IC
19 IIC scl = hi7503,7301,7304,7804
20 asymmetry EWto 7503 pin30
outputfor soft start
compensate for the V_size
21 EHT_compen.
owing the load variation
22,23,24pin22 determin the AGC
50Hz< freq. <160Hz
VAGC,VREF,VCAPpin23,pin24 determin frequency
pin26 determin the
26,27,28,29pll1 loop filter
30K<freq.<92KHz
Hpll1,Hbuf,Href, Hcappin 27,28,29 H-Freq
working range
1.compare the HFLBand control the phase of HDRV
30. PLL2
2.softstart
31 EHT_compen.compensate for the H_size owing the load variation
32. Focusto 7642 for the V dynamic focus
BackForward |