Kenwood TK-3107 Service Manual

Also see for TK-3107: Instruction manual Instruction manual Service manual Service manual

Contents

2221TK-3107 TK-3107BPF-WaveADJUSTMENTFig. 1ADJUSTMENTMethodAdjust to center frequencyRectify the waveform to squarewaveAdjust it to 4.1WAdjust it to ± 4.2kHz(Wide)Narrow check(+, - Peak whichever is Maximum)Check(+, - Peak whichever is Maximum)Adjust it to ± 0.75kHz(Wide)Adjust it to ± 0.35kHz(Narrow)Adjust it to ± 0.75kHz(Wide)Adjust it to ± 0.35kHz(Narrow)Adjust so that the LEDflashes.PartsPC keyVR500VR501PC keyPC keyPC keySpecifications/Remarkswithin ± 100Hz±0.1W±100Hz±1.8kHz~2.2kHz±2.2kHz~3.6kHz:(Wide)±1.1kHz~1.8kHz:(Narrow)±50Hz±50Hz±50Hz±50HzThe LED mustflash.TerminalANTANTMICANTBATTTest equipmentFrequencycounterModulationanalyzer or lineardetector (LPF: 3kHz)OscilloscopePower meterAmmeterModulationanalyzer or lineardetector (LPF:15kHz)OscilloscopeAGAF. V. MModulationanalyzer or lineardetector (LPF:3kHz)OscilloscopeAGAF. V. MModulationanalyzer or lineardetector (LPF:3kHz)OscilloscopeDigital voltmeterCondition1) CH: TX centerPTT: ON1) CH: TX center1) CH:TX LOWBattery terminal: 7.5VPTT: ON1) CH: TX centerAG: 1kHz/120mVPTT: ON1) CH: TX centerAG: 1kHz/12mV1) CH: TX highQT: 67.0Hz1) DQT:023N center1) Battery terminal: 5.8VTransmitter sectionItem1. Transmitfrequency(PC MODE)2. DQT/QTBalance(PC MODE)3. Power(PC MODE)4. MAX DEV5. MIC SENS6. QT DEV(PC MODE)7. DQT DEV(PC MODE)8. BatteryLevel(PC MODE)Measurement AdjustmentUse the KPG-55D programming software for adjustment of the next item in PC MODE (see page 2).Squelch Level, Transmit frequency, DQT Balance, RF Power, QT Deviation, DQT Deviation, Battery LevelPartsTC1TC2Method3.7V3.7VCheckSpecifications/Remarks±0.1V±0.1Vmore than 1.0VTerminalCVTest equipmentDigital voltmeterCondition1) Power supply voltageBattery teriminal:7.5V1) CH: TX high2) CH: RX high3) CH: TX low4) CH: RX lowSection common to the transmitter and receiver (VCO)Item1. Setting2. VCO lockvoltageMeasurement AdjustmentPartsTC201TC202TC203L212PC keyMethodAdjust the frequency so thatit becomes the spectrumwaveform shown in Fig.1.Adjust to the MAX AF levelCheckLevel 9Adjust to close the squelch.Level 3Adjust to close the squelch.Specifications/RemarksSINAD: 12dB orhigherThe squelch mustbe closed.The squelch mustbe closed.TerminalANTTP2ANTSPTest equipmentTra generatorSpectrum analyzerSSGOscilloscopeAF. V. MDistortion meterCondition1) CH: RX center2) Tra generator output -40dBmConnect the spectrum analyzerto TP2 terminal.1) CH: RX centerSSG output: -53dBm (501μV)MOD: 1kHzDEV: ±3.0kHz (Wide): ±1.5kHz (Narrow)1) CH: RX centerCH: RX LOCH: RX HiSSG ouput: -116dBm (0.35μV)MOD: 1kHzDEV: ±3.0kHz (Wide): ±1.5kHz (Narrow)1) CH: RX centerMONI: ON2) Level 9SSG output: -117dBm3) Level 3SSG output: -125dBm(0.126μV)Receiver SectionItem1. Band-pass filter2. AF level3. Sensitivity4. SquelchLevel(PC MODE)Measurement Adjustment