Kenwood TS-950S Service Manual

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TS-950S/SDDESCRIPTION OF COMPONENTSVCO (X58-3630-01) : PLL UNITComponentsUse/Function Operation/Condition/Compatibilityat VCO7-D (PLL7) | 61.666~70.055MHz.Q2 VCO7-C (PLL7} 54.555~61.555MHz.Q3 VCO7-8 {PLL7} | 47.555-54.555MHz.a4 VCO7-A (PLL7) 40.065~47.555MHz.D1 VCO7-D frequency viable02VCO7switchingOnwhen VACis“'L"'.FORSERVICEMANUALSD3VCO7-CfrequencyviableésD4VCO7switchingOnwhen VBCis'L"'CONTACT.DSVCO7-BfrequencyviableMAURITRONTECHNICALSERVICES—_|06VCO7switchingOnwhen VCCis"'L".www.mauritron.co.ukD7VCO7-AfrequencyviableTEL:01844-351694ir)VCO7switchingOnwhenVDCis"L"FAX:01844-352554AVR UNIT (X43-3070-01) (F/6)ComponentsUse/Function Operation/Condition/CompatibilityQ101,102|SwitchingOnwhenover-voltage.0101 Reverse current prevention0102Referencevoltage15V._0103ProtectionOnwhenover-voltage.VOX (X59-1080-01) : AF UNITComponents Use/Function 1 Operation/Condition/CompatibitityiC1 (1/2) VOX level comparator(C1 (2/2) ANTI VOX level comparator1C2 NOR circuitQi SwitchingTurnonwhen11piofIC2is'"H".D1,2 Reverse current preventionFM MIC AMP (X59-3000-03) : AF UNITComponents Use/Function Operation/Condition/CompatibilityIC1 (1/2) Low-pass filter 1,2: Output.ICA (2f2) Limitting amplifier 6: Input. 7; Output.NB2 (X59-3350-00) : IF, AF UNITComponents Use/Function Operation/Condition/CompatibilityIC1 One shot multi-vibrator Synchronized with pulse 5ms or 40ms.Q1,2 Switching Q1 turned on with 5ms when pulse occurs and Q2 turned off with 40ms.VCO (X59-3440-00) PLL, CAR UNITComponentsUse/Function Operation/Condition/CompatibilityQiVCO 30~110MHz,a2VCObufferLPF (X59-3450-XX} -00: AF UNIT -01: PLL, CAR UNITComponents Use/Function Operation/Condition/CompatibilityQ1~3 PLL low-pass filter Active filter.83