Kenwood TK-3148 Service Manual

Also see for TK-3148: Service manual

Contents

TK-314844ADJUSTMENTTransmitter Section [Panel Tuning Mode except when Panel TEST Mode is specified.]Item Condition Measurement Adjustment Specifications/Test equipment Unit Terminal Unit Parts Method Remark6. DQT 1) Adj item [BAL] Power meter Panel ANT Panel Encoder Make theBalance Adjust [∗∗∗] Deviation meter Universal knob demodulationAdjust LPF:3kHz Oscilloscope connector waves into[Narrow] HPF:OFF AG square waves2) Adj item AF VTVM[L BAL] ➞ [C BAL] ➞ [H BAL]Adjust [∗∗∗]PTT:ON[Wide] 3) Adj item [w BAL]Adjust [∗∗∗]PTT:ON7. Max DEV 1) Adj item [MAX] 1.85kHz ±50HzAdjust Adjust [∗∗∗] (According to[Narrow] AG:1kHz / 150mV the larger+,-)Deviation meter filterLPF:15kHzHPF:OFF2) Adj item[L MAX] ➞ [C MAX] ➞ [H MAX]Adjust [∗∗∗]PTT:ON[Wide] 3) Adj item [w MAX] 4.20kHzAdjust [∗∗∗] (According toPTT:ON the larger+,-)8. MIC [Panel Test Mode] Check Narrow 1.0~2.2kHzSensitivity 1) CH-Sig: 1-1 Wide 2.4~3.6kHzCheck AG:1kHz / Narrow 15mVWide 12mVLPF:15kHzPTT:ON9. QT Deviation 1) Adj item [QT] Panel ANT Panel Encoder 0.35kHz ±50HzAdjust Adjust [∗∗∗] Universal knobLPF:3kHz connectorHPF:OFF[Narrow] 2) Adj item[L QT] ➞ [C QT] ➞ [H QT]Adjust [∗∗∗]PTT:ON[Wide] 3) Adj item [w QT] 0.75kHzAdjust [∗∗∗]PTT:ON10.DQT 1) Adj item [DQT] 0.35kHzDevition Adjust [∗∗∗]Adjust LPF:3kHzHPF:OFF[Narrow] 2) Adj item[L DQT] ➞ [C DQT] ➞ [H DQT]Adjust [∗∗∗]PTT:ON[Wide] 3) Adj item [w DQT] 0.75kHzAdjust [∗∗∗]PTT:ON