Kenwood TS-950S Service Manual

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TS-950S/SD DESCRIPTION OF COMPONENTSComponentsUse/FunctionOperation/Condition/Compatibility01,2ReversecurrentpreventionD3 | Reverse current prevention FSKC, SSBC.04 Reverse current prevention CWC.D5~8 Reverse current prevention }09 Reverse current prevention | KEY.D10 Reverse current prevention IO11 | Reverse current prevention ABC,SABK.012 | Reverse current prevention RBC, SQ.013 Reverse current prevention MABK.014,15 Reverse current prevention iB16 Reverse current prevention VOXOL.017 Reverse current prevention019 Reverse current prevention FSKC,CWC.021ReversecurrentpreventionFMNC.FOR SERVICEMANUALSD22 ReversecurrentpreventionCONTACT:023ReversecurrentpreventionVBC, VBD.MAURITRON-TECHNICAL-SERVICES——__——_|024{VoltageregulatorVCO1..025,26 | Reverse current prevention UNLOCK signal. “Mmauritron.co-UK027 Voltage regulator lvcoo. TEL Oteaa - 357694028,29 __| NB detection NBQ, FAX OT844 = 352554030 NB detection NB1.D31 Reverse current prevention MONITOR.D32 Reverse current prevention RXB.B33 Reverse current preventionPLL UNIT (X50-3100-00)72Components Use/Function Operation/Condition/CompatibilityC1 AVR 8V (PLL and CAR unit).IC2 PLL3 (MAIN LO1) 2,3,4 : Divided ratio setting input. 5: 1TOMHz input. 7 : LOCK voltage output.(10Hz step with 10kHz coverage) 8 : UNLOCK output, When unlocked "'H". = 11 : 58~56MHz input.IC3 Divider (1/20) 4: 58~56MHz input. 8: 2.9~2.8MHz output.IC4 Mixer (MIX4) 4 212.9~12.8MHz output. 2: 2.9~2.8MHz input. 5 : 10MHz input.IC5 Mixer (MIX3) 1: 36.6~31,7MHz output. 2: 12.9~12.8MHz input. 5 : 49.5~44.5MHz input.IC6 PLL2 (MAIN LO1) 2.3.4 : Divided ratio setting input. 5: 1Q0MHzinput. 7: LOCK voltage output.(1OkHz step with 500kHz coverage) 8 : UNLOCK output, when unlocked "H''. 11: 36.6~31.7MHz input.IC7 Divider (1/10) 1: 49.5~44.5MHz input. 4: 4.98~4.45MHz output.Ic3 Mixer (MIX2) 1: 35.05~35.55MHz output. 2: 4.95~4.45MHz input. 5 : 40MHz input.ICQ (1/2) Divider (1/2) 5: 20MHz input. 9 : 10MHz output.IC10 PLL8 (SUB LO1) 2,3,4 : Divided ratio setting input. 5: 10MHzinput. 7: LOCK voltage output.8 : UNLOCK output, when unlocked ""H". 1: 109~107MHz input.114 Divider (1/20) 4:109-107MHz input. 8 : 5.45~5.35MHz output.1C12 Mixer (MIX12) 1: 25.45~25.35MHz output. 2 : 5.45~5.35MHz input. 5 : 20MHz input.IC13 Divider (1/10) 1: 25.45~25.35MHz input. 4 : 2.545~2.535MHz output.iC14 Mixer (MiX11) 1:12,545-12.535MHz output. 2: 2.545~2.535MHz input. 5 : 1OMHz input.IC15 Mixer (MIX10} 1: 38,.205~38.215MHz output, 2: 12.545~12.535MHz input.5 : 50.75MHz input.C16 Mixer (MIX9) 1: 1,86~31.85MHz output. 2 : 38.205~38.215MHz input.5 : 40.065~70.055MHz input.IC17 PLL7 (SUB LO1} 2,3,4 : Divided ratio setting input. 5: 10MHzinput. 7 : LOCK voltage output.(O0kHz step) 8: UNLOCK output, when unlocked '"'H'', 11: 1.86~31.85MHz input.1C18 (1/2) PLL7 LPF 10kH2~7.5MHz active filter (Reference frequency 10kHz).{C18 (2/2) PLL7 LPF 7.5MHz~30MHz active filter (Reference frequency 10kHz).Qi MIX4 input buffer |. 10MHz,