GrundigSonoclock53SC5303 维修电路图、原理图.pdf

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1、Sonoclock 53 SC 5303 DCF Service Document Exchange Set Es gelten die Vorschriften und Sicherheitshinweise gem dem Service Manual Sicherheit, Material- nummer 720108000000, sowie zustzlich die even- tuell abweichenden, landesspezifischen Vorschrif- ten! The regulations and safety instructions shall b

2、e valid as provided by the Safety Service Manual, part number 720108000000, as well as the respective national deviations. S Dieses Service Dokument ist nur in Datenform verfgbar This Service Document is only available as data nderungen vorbehalten/Subject to alteration Made by GRUNDIG in Germany H-

3、S 43 1003 S Service Manual Sicherheit Safety Materialnr./Part No. 720108000000 ? Sonoclock 53 SC 5303 DCF? Sonoclock 53 SC 5303 DCF? Sonoclock 53 SC 5303 DCF? Sonoclock 53 SC 5303 DCF? Sonoclock 53 SC 5303 DCF? Sonoclock 53 SC 5303 DCF? Sonoclock 53 SC 5303 DCF? Sonoclock 53 SC 5303 DCF? Step Signal

4、 source ( AM RF Gen. ) Connect toSet signal to Aligment indicator connect to Socilloscope or SSVM Set radio dial toAdjustAdjust forRemarks 1A standard radiation loop460 KHzTP2 Detector Output TerminalQuiet pointT2Maximum 2 Signal source ( AM RF Gen. ) Connect toSet signal to Aligment indicator conne

5、ct to Socilloscope or SSVM Set radio dial toAdjustAdjust forRemarks 1 515 KHz ( modulated ) 515 KHz ( lowest end ) T1 ( Ssc, coil ) 2 1640 KHz ( modulated ) 1640 KHz ( Highest end ) C3 ( Osc, coil ) 3 600 KHz ( modulated ) 600 KHz C5 ( Ssc, coil ) 4 1440 KHz ( modulated ) 1440 KHz C4 ( Ssc, coil ) 5

6、 Step Signal source ( FM RF Gen. ) Connect toSet signal to Aligment indicator ( ocsilloscope, VTVM Connect to ) Set radio dial toAdjustAdjust forRemarks 1 87.35 MHz modulated 87.35 MHz ( lowest end ) C2 ( Osc, coil ) 2 108.25 MHz modulated 108.25 MHz ( Highest end ) C1 ( Ssc, trimmer ) 390 MHz modul

7、ated 900 MHz c1 ( RF coil ) stretrch or squeeze 4 106 MHz modulated 106 MHzC2 ( RF trim ) 5 AM IF ALIGNMENT * UK models must not be able to tune below 87.5 MHz Repeat Steps 3 and 4 as necessary to minimize tracking error. Also repeat steps 1 and 2 if necessary. MW RF ALIGNMENT Volume control max- po

8、sition FM FR ALIGNMENT Volume control max- position Reqpeat for maximum output TP 1,GND (Test point ) through matching network if necessary Across speaker voice coilMaximum A standard radiation loop antennaAcross speaker voice coilMaximum Repeat Steps 3 and 4 as necessary to minimize tracking error. Also repeat steps 1 and 2 if necessary. Sonoclock 53 SC 5303 DCF?