Kenwood TK-3140 Service Manual

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TK-314029Common SectionItem Condition Measurement Adjustment Specifications/Test equipment Unit Terminal Unit Parts Method Remark1. Setting 1) BATT terminal voltage:7.5V2) SSG Standard modulation[Wide] MOD:1kHz, DEV:3kHz[Narrow] MOD:1kHz, DEV:1.5kHz2. VCO lock [Panel Test Mode]voltage 1) CH-Sig:2-1 Power meter Panel ANT TX-RX TC2 4.1V ±0.1VRX 2) CH-Sig:3-1 DVM TX-RX CV Check 0.6V or moreTX 3) CH-Sig:2-1 TC1 4.1V ±0.1VPTT:ON4) CH-Sig:3-1 Check 0.6V or morePTT:ONTransmitter SectionItem Condition Measurement Adjustment Specifications/Test equipment Unit Terminal Unit Parts Method RemarkADJUSTMENT1. Frequency 1) Adj item [FREQ] Power meter Panel ANT Panel Encoder Center frequency ± 100HzAdjust Adjust [∗∗∗] Am meter knobPTT:ON2. Hight Power 1) Adj item [HPOW] Encoder 4.0W ±0.1WAdjust Adjust [∗∗∗] knob 2.0A or less2) Adj item[L HPOW] Þ [L2 HPOW] Þ [C HPOW] Þ [H2 HPOW] Þ [H HPOW]Adjust [∗∗∗]PTT:ON3. Hight Power [Panel Test Mode]Check 1) CH-Sig:1-1 Check 3.7~4.3WPTT:ON 2.0A or less2) CH-Sig:2-1PTT:ON3) CH-Sig:3-1PTT:ON4. Low Power 1) Adj item [LPOW] Panel Encoder 1.0W ±0.05WAdjust Adjust [∗∗∗] knob 1.0A or less2) Adj item[L LPOW] Þ [L2 LPOW] Þ [C LPOW] Þ [H2 LPOW] Þ [H LPOW]Adjust [∗∗∗]PTT:ON5. Low Power [Panel Test Mode]Check 1) CH-Sig:1-1 Check 0.5~1.5WSet low power (Push [B]) 1.2A or lessPTT:ON2) CH-Sig:2-1PTT:ON3) CH-Sig:3-1PTT:ON