Kenwood TKR-851 Service Manual

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TKR-85137ADJUSTMENTTest Equipment Required for AlignmentTest Equipment Major Specifications1. Standard Signal Generator Frequency Range 400 to 512MHz(SSG) Modulation Frequency modulation and external modulationOutput 0.1μV to greater than 1mV2. Power Meter Input Impedance 50ΩOperation Frequency 400 to 512MHz or moreMeasurement Capability Vicinity of 30W3. Deviation Meter Frequency Range 400 to 512MHz4. Digital Volt Meter Measuring Range 1 to 20V DC(DVM) Accuracy High input impedance for minimum circuit loading5. Oscilloscope DC through 30MHz6. High Sensitivity Frequency Range 10Hz to 600MHzFrequency Counter Frequency Stability 0.2ppm or less7. Ammeter 10A or more8. AF Volt Meter Frequency Range 50Hz to 10kHz(AF VTVM) Voltage Range 3mV to 3V9. Audio Generator (AG) Frequency Range 50Hz to 5kHzOutput 0 to 1V10. Distortion Meter Capability 3% or less at 1kHzInput Level 50mV to 10Vrms11. Voltmeter Measuring Range 10 to 1.5V DC or lessInput Impedance 50kΩ/V or greater12. 4Ω Dummy Load Approx. 4Ω, 5WThe following parts are required for adjustment• Test cable for local microphone • The following test cables are recommended.MIC connector (Front panel view)1 : NC2 : +B3 : GND4 : PTT/TXD1 (PC serial data from radio)5 : MIC GND6 : MIC7 : HOOK/RXD1 (PC serial data to radio)8 : NCTest cable for microphone inputTo connect the TX-RX unit A/2 (CN14) to the TX-RX unit B/2 (CN602) while in servicing, you can use the 36-pin flatcable, E37-0979-05, which is available from the KENWOODparts center.Flat cable (36-pin) about 256mm8 1CutHOOK(GRY)MIC (WHT)MICG (SHIELD)ToAGAF VTVM PTT(BLU)GND(BLK)PTT SWPlug cordPart No. E30-3360-188 pin8 pin