Grundig-RRCD-3700-MP-3-Service-Manual电路图 维修手册.pdf

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1、Service Document Es gelten die Vorschriften und Sicherheitshinweise gem dem Service Manual Sicherheit“, Materialnum- mer 720108000001, sowie zustzlich die eventuell abweichenden, landesspezifischen Vorschriften! The regulations and safety instructions shall be valid as provided by the Safety“ Servic

2、e Manual, part number 720108000001, as well as the respective national deviations. S S Service Manual Sicherheit Safety Materialnr./Part No. 720108000001 RRCD 3700 MP3 GDS0800 Dieses Service Dokument ist nur in Datenform verfgbar This Service Document is only available as data nderungen vorbehalten/

3、Subject to alteration Made by GRUNDIG in Germany TCC 0208 HH RadioFans.CN 收音机爱 好者资料库 RRCD 3700 MP3 TUNER IC 900 U.B.S. Q109 Q110 FUNCTION SELECTOR SW 109 TAPE R/P IC 401 AUDIO CONTROL VR100 MUTING CIRCUIT Q100 Q101 POWER AMPLIFIER IC100 CD MECHANISM DA11 B3N CD SERVO SYSTEM IC701 IC702 IC703 KEY BOA

4、RD CD DISPLAY 9V MAIN SUPPLY D100 D101 D111 D112 BATT. 1.5V X 6 DC 7V DC 9V R-CH SP. FM ANTENNA R/P HEAD 7V REG Q102 Q103 Q107 E. HEAD REC L-CH SP. AC SOCKET AC/DC SWITCH ATTACH ON AC SOCKET SPK./HP. SWITCH HEAD- PHONE RadioFans.CN 收音机爱 好者资料库 RRCD 3700 MP3 RadioFans.CN 收音机爱 好者资料库 RRCD 3700 MP3 RRCD

5、3700 MP3 RRCD 3700 MP3 RRCD 3700 MP3 RRCD 3700 MP3 8-Nov-2007 L.CH OUT L-CH R-CH GND COMMAN R.CH OUT 7V Q401 9014C 1 2 3 4 CN401 16 17 18 SW401F PS-82D06 19 20 21 SW401G PS-82D06 7 8 9 SW401C PS-82D06 3 2 1 4 6 7 L401 9170 10 11 12 SW401D PS-82D06 22 23 24 SW401H PS-82D06 D401 1N4148 13 14 15 SW401E

6、 PS-82D06 C402 10n + C404 47u C405 10n D402 1N4148 4 5 6 SW401B PS-82D06 + C401 100u C406 1n8(m) R450 3K9 R453 120K R454 1K R455 820K R456 82 R401 120 R405 1M + C403 47u R402 470R410 10K R411 47K + C410 1u R412 680K Q402 9014C R414 4K7 + C411 1u R413 470 R420 470 R421 10K R423 680K Q403 9014C R422 4

7、7K R424 4K7 + C420 1u R441 68K R431 68K Q404 9014C Q405 9014C R404 10K R403 10K R442 6K8 R432 6K8 C413 18n(m) C424 18n(m) + C41447u + C423 47u R444 82K R434 82K +C422 1u + C412 1u R445 10K R435 10K C425 1n5 C415 1n5 C416 3n9(M) C426 3n9(M) + C421 1u + C407 22u R415 180K R425 180K R436 6K8 R446 6K8 R

8、452 100 R430 12K R440 12K 1 2 3 4 5 6 7 8 9 IC401 LS22241 C427 1n5 C417 1n5 R443 68 R433 68 R426 5K6 R416 5K6 SYNC L-OUT GND R-OUT L-REC R-REC GND REC. 6V5 REC GND 1 2 CN403 C409 180P C408 180P C418 2n C419 2n TO R/P HEAD TO MAIN PCB TAPE SECTION 1 2 3 4 5 6 7 8 CN402 C429 1n C428 1n C435 10n L405 1

9、uH L403 1uH L402 1uH L404 1uH RRCD 3700 MP3 RRCD 3700 MP3 RRCD 3700 MP3 RRCD 3700 MP3 RRCD 3700 MP3 OITARAPERP LARENEGDERIUQER STNEMURTSNIN sno i ac i f i ceps o t gn i drocca CA r o CD , egat l ov ecruos kcehC .1rotareneG l an g i S .1 deng i l a gn i eb dnab o t hc t iws no i t cnuf teS .2rotarene

10、G l ang iS MF .2 3. FM/AM IF Sweep Generator (10.7 MHz for FM)3. Signal input should be kept as low as possible to avoid AGC and AFC function : no i ta l udom dradnatS .4MVTV .4AM 1 KHz 30% mod 5. OscilloscopeFM 1 KHz 22.5 KHz dev 6. Frequency counter 7. Regulated DC power supply AM IF ALIGNMENT STE

11、P SIGNAL SOURCE (AM RF Gen.) CONNECT TO SET SIGNAL TO ALIGNMENT INDICATOR (Oscilloscope, VTVM) CONNECT TO SET RADIO DIAL TO ADJUSTADJUST FORREMARKS TP5 ta l or tnoc emu l oVte i uQl a n i mret tuptuo ro t c eteD z HK564no i ta i da r dradnat s A no i t i sop . n immum i x aM009Ttn i oPdnuorg dna poo

12、 l1 2 Repeat step 1 for max. output FM IF ALIGNMENT This model requires no FM IF alignment as the IF is fixed by ceramic filter and discriminator CF900 & CF901. Please take note that correct type and same color dot of ceramic filter is used in servicing, diff color dot of ceramic filter may cause wo

13、rse IF S curve characteristic and distortion. Connect IF genescope output terminal to TP903 & TP902 (GND) in series with a 1000Pf capacitor, connect scope input terminal to TP905 & TP904 (GND), then the IF characteristic curve can be observed. A L I G N M E N T P R O C E D U R E RRCD 3700 MP3 FM RF

14、ALIGNMENT STEP SIGNAL SOURCE (FM Signal Gen.) CONNECT TO SET SIGNAL TO ALIGNMENT INDICATOR (Oscilloscope, VTVM) CONNECT TO SET RADIO DIAL TO ADJUST ADJUST FOR REMARKS L901 (Osc. coil) 1o hc ter t s)dne t sewoL(zHM 53.78r (modulated)squeeze emu l oVA-009CVPs l a n i mreTzHM 52.801209PT & 109PT 2throu

15、gh matching network(modulated)across speaker (Highest end)(Osc. trimmer)Maximumcontrol at no i t i sop . xam) l i oc FR( 309Ll i o c ec i ovyrassecen f i 3ro hc ter t szHM 88zHM 88 (modulated)squeeze 106 MHzPVC900-B 4) remmi r t FR( zHM 601)deta l udom( 5 Repeat steps 3 and 4 as necessary to minimiz

16、e tracking error and also steps 1 and 2 if necessary AM RF ALIGNMENT STEP SIGNAL SOURCE (AM Signal Gen.) CONNECT TO SET SIGNAL TO ALIGNMENT INDICATOR (Oscilloscope, VTVM) CONNECT TO SET RADIO DIAL TO ADJUST ADJUST FOR REMARKS 515 KHzT901 1) l i oc . csO()dne t sewoL()deta l udom( 1635 KHzemu l oVD-0

17、09CVP 2ta l or tnocmum i x aM) remmi r t . csO()dne t sehg iH(rekaeps ssorcA)deta l udom(no i ta i dar dradnat s A no i t i sop . xam41 TNAl i o c ec i ovzHK 006 . t na poo l 3) l i oc . tna(zHK 006)deta l udom( 1400 KHzPVC900-C 4) remmi r t . tna(zHK 0041)deta l udom( 5 Repeat steps 3 and 4 as nece

18、ssary to minimize tracking error and also steps 1 and 2 if necessary Applicable unit : 1This model is using CD drive unit No. SANYO DA11B3N 2The alignment for CD section is fully automatic and no adjustment is reguired ALIGNMENT PROCEDURE FOR CD SECTION RRCD 3700 MP3 1 ) Check source voltage, DC or

19、AC according to specifications .2 ) Set function switch to Tape being aligned . A ) MEASURING INSTRUMENTS REQUIRED FOR TAPE B ) EQUIPMENTS REQUESTED FOR AC BIAS FREQUENCY / CURRENT ADJUSTMENT : SPEED AND HEAD AZIMUTH ADJUSTMENT. ( 1 ) TAPE SPEED ADJUST MTT-211NA (3150 Hz) TEST AC BIAS FREQUENCY ALIG

20、NMENT : Note :The test unit should be keep in recording mode and added two resistors Ra & Rb as shown in the Fig. 2 before alignment. be sure to delete the both resistors Ra & Rb after alignment completed. tnioP tseT . TNEMTSUJDA HTUMIZA DAEH ) 2 ( AdjustFrequencyFrequency Observe atObserve 2.1 - Co

21、nnect the equipments as shown in the Fig. 1.at Beat 0Beat 1Beat 2Beat 0Beat 1Beat 2 (The Both Speakers loading Are Required) Resistor 2.2 - Insert a test tape ( 10 KHz : MTT-114 ) into deck.Ra or RbL40160 KHz 0.3K 2.3 - Press PLAY and set VOLUME at reference output. 2.4 - Adjust the azimuth adjustme

22、nt screw for the max. & balance ch. output on both ch. of oscilloscope. 2.5 - Secure above screw with glue after adj. completed. GENERAL PREPARATION - = TO CASS PCB CN401 62KHz 1 Ra 10 ohm Rb 10 ohm 4 INPUT OUTPUT VTVM FREQUENCY COUNTER FIG.2 MOTOR SPEAKER TERMINALS AZIMUTH ADJ. SCREW TAPE IS REQUIR

23、ED R/P HEAD OSCILLOSCOPE CH. 2 3150 Hz CH. 1 FREQUENCY COUNTER FIG.1 R/P HEAD RRCD 3700 MP3 GRUNDIG ServiceE - 1 Ersatzteilliste Spare Parts List RRCD 3700 MP3 AUDIO BESTELL-NR. / ORDER NO.: GDS0800 ? 1 / 2008 POS. NR. ABB.MATERIAL-NR.ANZ.BEZEICHNUNGDESCRIPTION POS. NO. FIG.PART NUMBER QTY. d GDS080

24、0RRCD 3700 MP3 BLACKRRCD 3700 MP3 BLACK KEIN E-TEILNO SPARE PART 0001.000759540384400BATTERIEFACHDECKEL RUECKWANDBATTERY DOOR BACK COVER 0002.000759540384500BATTERIEFACHDECKEL BACK UPBATTERY DOOR BACK BACK UP 0003.000759540384300STABANTENNEROD ANTENNA DIE BEDIENUNGSANLEITUNG KOENNENTHE INSTRUCTION M

25、ANUAL CAN BE SIE IM INTERNET UNTER FOLGENDERDOWNLOADED FROM THE INTERNET ADRESSE ABRUFEN: WWW.GRUNDIG.DEUNDER THE FOLLOWING ADDRESS: MENU: DOWNLOADSWWW.GRUNDIG.DE MENU: DOWNLOADS HINWEIS!NOTE! IM DEFEKTFALL NEHMEN SIEIN THE EVENT OF A DEFECTIVE KONTAKT MIT UNSERERPLEASE CONTACT YOUR SERVICE HOTLINE

26、AUF NDERUNGEN VORBEHALTEN / SUBJECT TO ALTERATION ( ! ) ! Es gelten die Vorschriften und Sicherheitshinweise gem dem Service Manual Sicherheit, Mat.-Num- mer 720108000001, sowie zustzlich die eventuell ab- weichenden, landesspezifischen Vorschriften! The regulations and safety instructions shall be valid as provided by the Safety Service Manual, part number 720108000001, as well as the respective national deviations.