Kenwood TH-F6A Service Manual

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Contents

TH-F6A/F7E41ADJUSTMENTReceiver sectionItem Conditions Measurement Adjustment Specifications/RemarksTest equipment Unit Terminal Unit Parts Method1. 2nd Local Switch to Service Setup mode f.counter TX-RX TP3 Tuning Writeand carry out the operations for item D. Spectrum B/3 control1) B-Band analyzerFrequency:146.050MHz (USB) 57.1500MHz ± 50Hz2) Frequency:-2.5KHz shift 57.1475MHz ± 50Hz3) Frequency:+2.5KHz shift 57.1525MHz ± 50Hz2. RX 1) B-Band SSG ANT L19 Tune L19 to obtain Min. DistortionDemodulation Frequency:146.050MHz (FM) Distortion S.P min distortion andSSG:(0dBm) 224mV Meter max AF OUTPUT.FM:3KHz AF.V.M2) Frequency:90.100MHz(W-FM) Oscilloscope L18 Tune L18 to obtain Min. DistortionSSG:(0dBm) 224mV min distortion andFM:50KHz max AF OUTPUTRX BPF tune Switch to Service Setup modeand carry out the operations for item C.A-Band SSG TX-RX ANT Tuning Write Max. Sensitivity1) Frequency:145.050MHz Oscilloscope SP controlSSG:(-53dBm) 501μV DistortionMode:FM (3KHz) MeterAF VR:0.63V/8Ω AF.V.MSSG:(-121dBm) 0.199μV2) Frequency:137.000MHzSSG:(-115dBm) 0.398μV3) Frequency:173.990MHzSSG:(-121dBm) 0.199μV4) Frequency:223.550MHz (K-Type only)SSG:(-120dBm) 0.22μV5) Frequency:216.000MHz (K-Type only)SSG:(-115dBm) 0.398μV6) Frequency:259.990MHz (K-Type only)SSG:(-103dBm) 1.58μVB-Band7) Frequency:146.100MHzSSG:(-117dBm) 0.32μV8) Frequency:118.100MHzSSG:(-110dBm) 0.707μV9) Frequency:173.900MHzSSG:(-120dBm) 0.22μV10)Frequency:50.100MHzSSG:(-115dBm) 0.398μV11)Frequency:90.100MHzSSG:(-93dBm) 5.01μV12)Frequency:107.900MHzSSG:(-110dBm) 0.707μV13)With no device is connected to Oscilloscope Tuning Turn the Tuning MAX.AF levelthe antenna terminal, put the AF.V.M control control to obtaintransceiver in receive mode. Distortion max AF output.Frequency:MW0.540MHz14)Frequency:MW0.800MHz MNU key Write15)Frequency:MW1.200MHz16)Frequency:SW3.000MHz17)Frequency:SW6.550MHz18)Frequency:SW10.090MHz