Sony_ICF-Pro70_ICF-Pro80_serv维修手册含电器原理图_supplement-1

ICF-PRO70/PRO80SONYSERVICE MANUALUS ModelCanadian ModelAEP ModelUK ModelE ModelSUPPLEMENT-1Australian Model(CF-PRO80File this supplement with the service manual.AEP ModelE ModelSubject:1.Converter Frequency Adjustment is added.2.Parts No.of C713 on converter main boardICF-PRO70are added.3.French model is added in ICF-PRO80.1.Converter Frequency AdjustmentAdjustment Location:(ICF-PRO80 only)CONVERTER BOARDNote:Frequency converter(ANTENNA TERMINAL SIDE)FRQ-80:Except French modelFRQ-81:French model onlyProcedure:702frequency converterF月0-80 or FRQ-81)CW702(SWITCH SIDE)converter outfrequency counter1)Connect a frequency counter to the point A(out-put of the OSC frequency).2)Terminate between signal line to ground of CN702 by●1 ks.(Refer to figure.)0.01F3)Apply de 3 V from battery terminal of frequencyconverter.4)Adjust T702 so that the frequency is as shown below.If not,change the capacity of C713 and adjust again.Frequency converterAdjustment frequencyFRQ-80115MHz±0.5kHzFRQ-81100MHz±0.5kHzOSC frequencyC713high22pF24pFlow27pF