Kenwood TK-2107G Service Manual

TK-2107G32ADJUSTMENTTransmitter SectionItem ConditionMeasurement AdjustmentSpecifications / RemarksTest-equipment Unit Terminal Unit Parts Method1. Transmitfrequency(PC mode)1) CH: TX centerPTT: ONf.counter TX-RX ANT PCkeyAdjust to centerfrequencyWithin ±100Hz2. DQT/QTBalance(PC mode)1) CH: TX center Modulationanalyzeror Lineardetector(LPF: 3kHz)OscilloscopeTX-RX VR500 Rectify the waveformto square wave3. Power(PC mode)1) CH:TX centerBattery terminal: 7.5VPTT: ONPowermeterAmmeterAdjust it to 5.1W ±0.1W1.6A or less4. MAX DEV 1) CH: TX centerAG: 1kHz/120mVPTT: ONModulationanalyzeror Lineardetector(LPF: 15kHz)OscilloscopeAGAF V.MANTMICTX-RX VR501 Adjust it to ±4.3kHz(Wide)Narrow check(+, – Peak whicheveris Maximum)±50Hz±1.8kHz~2.2kHz5. MIC SENS 1) CH: TX centerAG: 1kHz/12mVCheck(+, – Peak whicheveris Maximum)±2.2kHz~3.8kHz (Wide)±1.1kHz~1.9kHz (Narrow)6. QT DEV(PC mode)1) CH: TX highQT: 67.0HzModulationanalyzeror Lineardetector(LPF: 3kHz)OscilloscopeAGAF V.MANT PCkeyAdjust it to ±0.9kHz(Wide)Adjust it to ±0.45kHz(Narrow)±50Hz7. DQT DEV(PC mode)1) DQT: 023N center Modulationanalyzeror Lineardetector(LPF: 3kHz)OscilloscopeAdjust it to ±0.75kHz(Wide)Adjust it to ±0.35kHz(Narrow)±50Hz8. BatteryLevel(PC mode)1) Battery terminal: 5.8V DigitalvoltmeterBATT Adjust so that theLED flashes.The LED must flash.Fig. 1