ViewSonic VX912-4 Service Manual page 37

2.3 The warning is used to remind user of that different CPU rate may cause ISP function fail. (it's limited by IIC
protocol ) , press " OK " button , see Fig 2.3
2.4 Press " Create Security File " button to key in Security code . Adjusting bar to decrease speed of IIC bus , See
Fig. 2.4 .
Speed of IIC bus
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Fig. 2.3
Fig. 2.4
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VX912-4