Kenwood NXR-800 Service Manual

Also see for NEXEDGE NXR-800: Brochure Instruction manual Instruction manual Instruction manual Instruction manual

Contents

NXR-80076ADJUSTMENTItem ConditionMeasurement AdjustmentSpecifications / RemarksTest-equipment Unit Terminal Unit Parts Method18. HighTransmitPower(Pre ADJ)1) Low Power meterPCRear TX ANT PCADJValue: 1024 Fixed value writingFinal VR2 5.0W ±0.1W19. CouplerADJ1) Low DVM Final REF Final VR1 0.09~0.14V (Adjustto the minimumvalue if it is notreduced to 0.14V.)20. HighTransmitPower(Max powerlimit ADJ)1) Low Power meterPCRear TX ANT PCADJValue: 1024 Fixed value writingFinal VR2 8.0W ±0.2W2) High PCADJValue: 1024 Fixed value writingCheck 7.0W or more21. HighTransmitPowerFrequency1) Low2) Center3) HighAttach the EXCITER/FINALshield cover.Power meterAmmeterRear TX ANT PCADJ5.0W ±0.1W4.4A or less22. LowTransmitPowerFrequency1) Low2) Center3) HighAttach the EXCITER/FINALshield cover.0.50W ±0.01W3.3A or less23. Deviation(The transmis-sion VCO bandis separatedinto A and B.3-points foreach, i.e., totalof 6-points shallbe adjusted.)NXDN Very NarrowConnect the deviation meter tothe TX ANT end via the ATT.Deviation meter settingHPF: OFFLPF: 15kHzDe-emp: OFFDetector: (p-p)/21) 100Hz Square Signal/A: Low2) 100Hz Square Signal/A: Center3) 100Hz Square Signal/A: High4) 100Hz Square Signal/B: Low5) 100Hz Square Signal/B: Center6) 100Hz Square Signal/B: HighDeviationmeterOscilloscopePCRear TX ANT PCADJ±1.10kHzAdjust it into cleansquare wave withchanging “Sub-audible Gain” and“Audible Gain”.±0.05kHzNXDN Analog NarrowConnect the deviation meter tothe TX ANT end via the ATT.Deviation meter settingHPF: OFFLPF: 15kHzDe-emp: OFFDetector: +peak, –peak1) Max Deviation Pattern/Frequency channel: 1 (Low)2) Max Deviation Pattern/Frequency channel: 2 (High)3) Max Deviation Pattern/Frequency channel: 3 (Center)(Note: PC test mode)Check ±3.06kHz±0.10kHzClean sine wave.