46
104S CM23 GSIII
Repair Flow Chart
30K<freq.<54KHz
30. PLL2
pin26 determin the
pll1 loop filter
pin 27,28,29 H-Freq
working range
50Hz< freq. <120Hz
26,27,28,29
Hpll1,Hbuf,Href, Hcap
pin22 determin the AGC
pin23,pin24 determin frequency
22,23,24
VAGC,VREF ,VCAP
21 EHT_compen.
compensate for the V_size
owing the load variation
1.compare the HFLB(7501 pin1) and control the phase of H-Output(7501 pin8)
2.softstart
Hunlock pin is floating while pll1(pin26) is
unlock in searching mode
17. Hunlock
19. IIC sda = hi
18. IIC scl = hi
the initial failure may be these
of IC 7501,7099,7801,7806
Содержание 104S11/00
Страница 67: ...23 1 104S CM23 GSIII VIDEO BOARD PCB Go to cover page Forward Back CLICK HERE FOR COMPONENT LAYER ...
Страница 72: ...PWB MAIN BOARD 27 1 104S CM23 GSIII Go to cover page Forward Back CLICK HERE FOR COMPONENT LAYER ...
Страница 73: ...PWB MAIN BOARD 27 104S CM23 GSIII Go to cover page Forward Back CLICK HERE FOR COPPER PATH LAYER ...