Grundig-Sonoclock-890-Service-Manual电路原理图.pdf

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1、Sono Clock 890Service DocumentExchange SetEs gelten die Vorschriften und Sicherheitshinweisegem dem Service Manual “Sicherheit“, Material-nummer 72010 800 0000, sowie zustzlich dieeventuell abweichenden, landesspezifischen Vor-schriften!The regulations and safety instructions shall bevalid as provid

2、ed by the “Safety“ Service Manual,part number 72010 800 0000, as well as therespective national deviations.SDieses Service Dokument ist nur in Datenform verfgbarThis Service Document is only available as datanderungen vorbehalten/Subject to alterationMade by GRUNDIG in Germany E-BS31 0700http:/SServ

3、iceManualSicherheitSafetyMaterialnr./Part No.72010 800 0000IK501SonoClock 890IAlignment InformationModel : GRUNDIG SC890Ref. No. : SC890Date : 29 FEB 2000A) FM Radio section1) FM IFINPUT SIGNAL OUTPUT SET RADIO ADJUST ADJUST FOR REMARKTP8 10.7MHz TP3,4 Quiet Point T101,102 S curve symmetrical Vol. a

4、t min. position2) RF VOLTAGEBAND SIGNAL OUTPUT SET RADIO ADJUST ADJUST FOR REMARKFM - - TP2,5 108MHz L102 High end 7.3V 7.7V 1.7V 2.3V3) FM RFINPUT SIGNAL OUTPUT SET RADIO ADJUST ADJUST FOR REMARKTP1,2 88MHz Speaker 88MHz L101 Max. o/p Vol. at max. positionTP1,2 106MHz “ “ 106MHz TC102 “ “ “ “4) 75K

5、HZ CRYSTALOUTPUT ADJUST ADJUST FOR REMARKTP6,7 CHECKONLY75KHz 4HZ5) 32.768KHZ CRYSTALOUTPUT ADJUST ADJUST FOR REMARKIC201,PIN 56TC202 Clock accuracy 20 sec/month6) 4.194304MHZ CRYSTALOUTPUT ADJUST ADJUST FOR REMARKIC201,PIN 59CHECKONLY4.194296MHz 4.194336MHzSonoClock 890II7) 4.332MHZ CRYSTALOUTPUT A

6、DJUST ADJUST FOR REMARKIC202,PIN 14TC 201 4.332MHz 500HzNote :1. Use the digital meter to measure each required voltage on the above items.2. Use weak signal in RF alignment.3. Radio & LCD board must be connected before alignment.4. Use the frequency counter to measure each required frequency on the above items.SonoClock 890SonoClock 890SonoClock 890SonoClock 890SonoClock 890SonoClock 890SonoClock 890