Canon PowerShot 350 Service Manual - Page 74
Input, Level
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Part 3: Repair Information 3.7 ND INPUT LEVEL PURPOSE: Adjusting the signal level for A/D convertor. CAUTION: D/A Vref.. Adjustment should be completed before making this adjustment. STANDARD: O.B.(Optical Black) to White level: 490± l0rnV • Data Transfer Unit • Oscilloscope • Gray Scale Chart (3000°) • LB20 Filter PREPARATION: 1) Position the tools as shown on the right. 2) Set the the camera in Test mode. Gray Scale L=20 Filter LI To Oscilloscope 0 To Data Transfer Unit To AC Adaptor Fig. 3-22 SetUp (GS) CMD $28 ADR $E01A DATA RET CMD $60 ADR $2 DATA $0 RET CMD $20 ADR $E0F0 DATA $62 RET CMD $20 ADR $EOFF DATA $1E RET When "$le" is input, writing error results and "$60" is indicated, however, the camera manipulates the data as Ile". CMD $28 ADR $E114 DATA $100 RET 3-24