Kenwood CKDC-MP576 Service Manual

Contents

13CKDC-MP576CKDC-MP676F/MP676VADJUSTMENT1. IC10 (X34-) -The Tuner adjustment method• When IC10 and its circumference are repaired, accordingto the following order, it readjusts if needed.• The adjustment item changes with parts to exchange. Pleaserefer to "Parts vs Adjustment item table".1-1. VCO coil adjustment - adjustment of tunning voltageVoltage Check Point : Vt-Check Land(PWB Side B, around D506)Adjustment Coil : L507 (VCO Coil)The adjustment method : VCO coil is turned and adjustedaccording to the following tables.Mode freq. Voltage Fig.AM 1700kHz 5.8 ± 0.1(V) 2, 3 (C)M : AM AdjustmentFor Your Information : The frequency of this unit is only setup by preset key in case this adjustment1-2. Adjustment of 1st & 2nd-MIX coilVoltage Check Point : S-METER-Check Land(PWB Side B, around R216)Adjustment Coil : 1st IFT=L508 / 2nd IFT=L509Setting of Signal Generator : Refer to the following tablesMode freq. Mod. ANT Input Fig.AM 1000kHz OFF 35dBμEMF 1~3 (B),(C)qThe appearance and the coil with which S-METER DC volt-age serves as the maximum are turned and adjusted in theabove-mentioned SG input.wBy the above-mentioned adjustment method, same adjust-ment is performed to both sides (1st & 2nd MIX Coil).1-3. Adjustment of FM ANT & RF coilVoltage Check Point : S-METER-Check Land(PWB Side B, around R216)Adjustment Coil : ANT Coil = L505RF Coil = L506Setting of Signal Generator : Refer to the following tablesMode freq. Mod. ANT Input Fig.FM 87.9MHz OFF 5 or 11dBμEMF 1~3 (A),(C)qThe appearance and the coil with which S-METER DC volt-age serves as the maximum are turned and adjusted in theabove-mentioned SG input.wBy the above-mentioned adjustment method, same adjust-ment is performed to both sides (ANT & RF Coil).1-4. Adjustment of STEREO (adjustment of 456k-VCO)Adjust in TEST MODE• How to enter the test modeRefer to “TEST MODE”.• Adjustment methodWhile in test mode and all lights are lit (STANDBY), pressand hold [1] key and press [6] key for 3 seconds or longer.(Adjusted data will be written on E2PROM.)Effect of adjustment is in cofirmation of adjustment statusat Preset [AM] key.• Display of Preset [AM]Adjustment OK: “E2P OK” (14-segment display model)Adjustment NG: “E2P ERR” (14-segment display model)• How to clear the test modeRefer to “TEST MODE”.[Fig.3](UNDER VIEW)[Fig.2][Fig.1](OVER VIEW)(REAR VIEW)(TUNER ANT)(A)(B)S-METERCheck LandIC10VtCheck LandFM-SGAM-SG(C) DC VoltmeterL509L508L507L506L505