80

 

107T5

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17.Vblk

Repair Flow Chart (Continued)

Vblk pin is floating while pll1(pin26) is unlock in searching mode

30.IIC scl = hi

31IIC sda = hi

18 EHT_compen.

19,20,22

Voscf,Vagc,Vcap

9,8,6,4 PLL1,RO,CO, Hoscf

the initial sequence of IIC IC 7501,7331,

compensate for the V_size

owing the load variation

Pin20 determin the AGC Pin19,pin22 determin frequency

Pin9 determin the pll1 loop filter

pin 8,6,4 H-Freq working range

50Hz< freq. <160Hz

30K<freq.<71KHz

5. PLL2

1.compare pin 12 and control the phase of HDRV 2.softstart 14, 15, 16,

17 EHT_compen.

 

 

compensate for the H_size owing the load variation

 

 

 

 

 

 

32. Focus

to 7616 for the V dynamic focus

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Image 80
Philips V30 manual Vblk