Kenwood NX-320 Series Service Manual

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NX-32071ADJUSTMENT (E TYPE)Receiver SectionItemCondition Measurement Adjustment Specifications /RemarksPanel tuning mode PC test mode Test-equipment Unit Terminal Unit Parts Method1. AF levelsetting[Panel test mode]1) CH-Sig: 1-1SSG output:–47dBm (1mV)(MOD: 1kHz/±1.5kHz)Wide 5k/Wide 4k/Narrow: NarrowBeat Shift: UncheckCompander: Uncheck1) Test ChannelChannel: 1Test SignalingMode: AnalogSignaling: 1Wide 5k/Wide 4k/Narrow: NarrowBeat Shift: UncheckCompander: UncheckSSG output:–47dBm (1mV)(MOD: 1kHz/±1.5kHz)SSGDVMAF VTVMDummyloadPanel ANTSP/MICconnectorPanel VolumeknobTurn the VolumeKnob to obtain0.63V AF output.0.63V±0.1V2. Sensitivity 1 * This adjustment canbe performed onlyin PC test mode.1) Adj item:[Sensitivity 1]2) Adj item: [Low],[Low’], [Center],[High’], [High]Press [Apply All]button to store theadjustment value.SSGAF VTVMDummyloadOscilloscopePanel ANTSP/MICconnector[PC testmode][ ],[ ]Write the value asfollowings.[Low]: 22 (Fixed)[Low’]: 70 (Fixed)[Center]: 113 (Fixed)[High’]: 149 (Fixed)[High]: 189 (Fixed)Note:The Preset value ofSensitivity 2 mustbe written beforeadjusting Sensitivity1.3. Sensitivity 2 * This adjustment canbe performed onlyin PC test mode.1) Adj item:[Sensitivity 2]2) Adj item: [Low],[Low’], [Center],[High’], [High]Press [Apply All]button to store theadjustment value.Write the value asfollowings.[Low]: 256 (Preset)[Low’]: 256 (Preset)[Center]: 256 (Preset)[High’]: 256 (Preset)[High]: 256 (Preset)3) Adj item: [Low],[Low’], [Center],[High’], [High]Press [Apply All]button to store theadjustment value.Start by pressing the “Auto Tuning” [Start]button, or decrease the adjustment valuefrom the preset value to get the maxi-mum RSSI level.SSG output: –90dBm (7.08μV)(MOD: 1kHz/±1.5kHz)Press [Apply All] button to store the ad-justment value after all adjustment pointshave been adjusted.Next, increase the adjustment value toget 12dB SINAD.SSG output: –118dBm (0.28μV)(MOD: 1kHz/±1.5kHz)4. RSSIreference*5[AnalogNarrow]1) Adj item: [RRSS]Adjust: [✳✳✳.]2) Adj item: [R.RSS_]→[R.R.SS_]→[R.R.S.S_]→[R.R.S.S._]→[R.R.S.S._.]SSG output: 12dBSINAD level –3dB(MOD: 1kHz/±1.5kHz)1) Adj item: [RSSIReference (AnalogNarrow)]2) Adj item: [Low],[Low’], [Center],[High’], [High]SSG output: 12dBSINAD level –3dB(MOD: 1kHz/±1.5kHz)SSG Panel ANTSP/MICconnector[Panel tuning mode]After input signalfrom SSG, press[B] key to store theadjustment value.[PC test mode]After input signalfrom SSG, press[Apply] button tostore the adjust-ment value.