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Repair Flow Chart (Continued)
V20 107E5
30K<freq.<71KHz
5. PLL2
Pin9 determin the
pll1 loop filter
pin 4,6,8 H-Freq
working range
50Hz< freq. <160Hz
4,6,8,9
Hpll1,Hbuf,Href, Hcap
Pin19 determin the AGC
Pin20,pin22 determin frequency
19,20,22
VAGC,VREF,VCAP
18 EHT_compen.
compensate for the V_size
owing the load variation
1.compare the HFLB and control the phase of HDRV
2.softstart
compensate for the H_size owing the load variation
17 EHT_compen.
32. Focus
to 7616 for the V dynamic focus
Hunlock pin is floating while pll1(pin9) is
unlock in searching mode
3. Hunlock
30. IIC scl = hi
31 IIC sda = hi
the initial sequence of IIC IC
7501,7301
52
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Содержание 107E51/87
Страница 17: ...9 Go to cover page 17 V20 107E5 Wiring Diagram http jdwxzlw 5d6d com fromuser 华盛维修 家电维修资料网 免费下载各种维修资料 ...
Страница 31: ...Block Diagram 31 9 Go to cover page V20 107E5 http jdwxzlw 5d6d com fromuser 华盛维修 家电维修资料网 免费下载各种维修资料 ...
Страница 35: ...Main Panel C B A B 35 9 Go to cover page V20 107E5 http jdwxzlw 5d6d com fromuser 华盛维修 家电维修资料网 免费下载各种维修资料 ...