51
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Repair Flow Chart (Continued)
30K<freq.<96KHz
1. PLL2
pin26 determin the
pll1 loop filter
pin 27,28,29 H-Freq
working range
50Hz< freq. <160Hz
26,27,28,29
Hpll1,Hbuf,Href, Hcap
pin22 determin the AGC
pin23,pin24 determin frequency
22,23,24
VAGC,VREF,VCAP
1.compare the HFLB and control the phase of HDRV
2.softstart
32. Focus
to 7631 for the V dynamic focus
Hunlock pin is floating while pll1(pin26) is
unlock in searching mode
17. Hunlock
19. IIC sda = hi
18. IIC scl = hi
initial sequence of IIC IC
7501,7301,7304
V50 109B5
Summary of Contents for V50 109B5
Page 7: ...9 Go to cover page 7 V500 109B5 Wiring Diagram ...
Page 25: ...C B A Of Video Board 25 9 Go to cover page V50 109B5 ...
Page 29: ...C B A Of Main Board 29 9 Go to cover page V50 109B5 ...
Page 30: ...30 V50 109B5 9 Go to cover page C B A Of Main Board ...
Page 34: ...34 V50 109B5 Control Panel board C B A 9 Go to cover page ...
Page 36: ...36 V50 109B5 MHR board C B A 9 Go to cover page ...