Kenwood TK-480 Service Manual

Also see for TK-480: User manual Instruction manual Specifications Instruction manual Service manual

Contents

ADJUSTMENTMeasurementTest-equipment Unit TerminalAdjustmentUnit Parts Method Specifications/RemarksConditionItem20TK-4801. Frequency 1) SYS – GRP : 4 – ✽ f. counter Panel ANT Panel Encoder 815.500MHz ± 100Hzadjustment Select FREQ ✽ ✽ ✽ knobin tuning mode.PTT : ON2. Maximum 1) SYS – GRP : 4 – ✽ Power meter Check 3.0W or morepower check Select HPOW 256in tuning mode. Ammeter Panel ANTPTT : ON3. TX high 1) SYS – GRP : 4 – ✽ Panel Encoder 2.5W ± 0.1Wpower Select HPOW ✽ ✽ ✽ knob 1.7A or lessadjustment in tuning mode.PTT : ON4. TX T/A 1) SYS – GRP : 4 – ✽high power Select THPW ✽ ✽ ✽adjustment in tuning mode.PTT : ON5. TX high 1) SYS – GRP : 1 – ✽, 7 – ✽ Check 2.0~3.0Wpower check TA mode : OFF and ON(Press [A] key, then [C] key) 1.7A or lessPTT : ON6. TX low 1) SYS – GRP : 4 – ✽ Panel Encoder 1.0W ± 0.1Wpower Select LPOW ✽ ✽ ✽ knob 1.2A or lessadjustment in tuning mode.PTT : ON7. TX T/A 1) SYS – GRP : 4 – ✽low power Select TLPW ✽ ✽ ✽adjustment in tuning mode.PTT : ON8. TX low 1) SYS – GRP : 1 – ✽, 7 – ✽ Check 0.5~1.5Wpower check Low power (Press [B] key) 1.2A or lessTA mode : OFF and ON(Press [A] key, then [C] key)PTT : ONTransmitter SectionCommon Section1. Setting 1) BATT terminal voltage : 7.5VStandard modulationMOD : 1kHzDEV : ± 3kHz2. VCO lock 1) SYS – GRP : 1 – 1 Power meter TX-RX VC Check 0.5V or morevoltage DVM2) SYS – GRP : 7 – 1 4.3V or lessPTT : ON3) SYS – GRP : 7 – 1TA mode : ONPTT : ONMeasurementTest-equipment Unit TerminalAdjustmentUnit Parts Method Specifications/RemarksConditionItem