Kenwood TS-990S Service Manual
Also see for SP-990: Instruction manual
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TS-990S177ADJUSTMENTItem ConditionMeasurement AdjustmentSpecifications/RemarksTest-equipment Unit Terminal Unit Parts Method9. Frequency Adjust by the method of 1) or 2).1) Menu No. : 0 (14.2MHz,USB)Connect the frequency coun-ter to the REF I/O (10MHz)terminal.f. counter RearpanelREF I/O(10MHz)Frontpanel[UP]/[+](F5)or[DOWN]/[-](F4)Set the adjustmentvalue within thelimit of the specifi edfrequency.10MHz±0.1Hz (9.9999999~10.0000001MHz)2) Menu No. : 0 (14.2MHz,USB)Mode: CWSSG f.: 14.2MHzSSG output: -53dBm(0.501mV)Using a cable, connect thebetween frequency counterand EXT.SP1 terminal.Adjust to 700 by the rotatingCW pitch knob.Rotate the AF knob to a leveldetectable by the frequencycounter.f. counterSSGRearpanelEXT.SP1Frontpanel[UP]/[+](F5)or[DOWN]/[-](F4)Set the adjustmentvalue within thelimit of the specifi edfrequency.700Hz±0.17Hz10. FM discrimi-nator1) Main display f.:29.200000MHzMode: FMP.AMP: ONAF output: 0.63V/8SSG f.: 29.200MHzSSG output: –53dBm(0.501mV)MOD: 1kHzDEV: 3kHzSSGOscillo-scopeAF VMDistortionmeterDM.SPAudioanalyzerRX(A/2)RearpanelCN1EXT.SP2RX(A/2)L103 Adjust the L103 toget the AF maximumoutput of 0.63V/ 8ohms.Check the distortionand the waveform isa good sine wave.AF max.2.3% or less11. NB voltage 1) Menu No.: 5P.AMP: ONAGC: OFFFIL/SEL(M): 15kHzNB1: ONSSG f.: 14.201MHzSSG output: –60dBm (224μV)DVMSSGOscillo-scopeAF VMDM.SPNoise G.RX(A/2)CN1TP2RX(A/2)L43L52L56Voltage min.2) Menu No.: 5SSG f.: 14.201MHzSSG output: –101dBm (2μV)Check 4.1V or less |
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