GrundigRRCD1300 维修电路图、原理图.pdf
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1、Service Document Exchange Set Es gelten die Vorschriften und Sicherheitshinweise gem dem Service Manual Sicherheit, Material- nummer 720108000001, sowie zustzlich die even- tuell abweichenden, landesspezifischen Vorschrif- ten! The regulations and safety instructions shall be valid as provided by th
2、e Safety Service Manual, part number 720108000001, as well as the respective national deviations. S S Service Manual Sicherheit Safety Materialnr./Part No. 720108000001 ? RRCD 1300 Dieses Service Dokument ist nur in Datenform verfgbar This Service Document is only available as data nderungen vorbeha
3、lten/Subject to alteration Made by GRUNDIG in Germany HS-41 0305 RRCD 1300? INSTRUMENTS REQUIREDGENERAL PREPARATION 1. Signal Generator1. Check source voltage, DC or AC according to specificaions 2. FM Signal Generator2. Set function switch to band being aligned 3. FM/AM IF Sweep Generator (10.7 MHz
4、 for FM)3. Signal input should be kept as low as possible to avoid AGC and AFC function 4. VTVM4. Standard modulation : AM 1 KHz 30% mod 5. OscilloscopeFM 1 KHz 22.5 KHz dev 6. Frequency counter 7. Regulated DC power supply AM IF ALIGNMENT STEP SIGNAL SOURCE (AM RF Gen.) CONNECT TO SET SIGNAL TO ALI
5、GNMENT INDICATOR (Oscilloscope, VTVM) CONNECT TO SET RADIO DIAL TO ADJUSTADJUST FORREMARKS TP5 A standard radiation 465KHz Detector output terminal QuietVolume control at 1loop and ground Point T501Maximum min. position 2 Repeat step 1 for max. output FM IF ALIGNMENT This model requires no FM IF ali
6、gnment as the IF is fixed by ceramic filter and discriminator CF503 & CF504. 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 worse IF S curve characteristic and distortion. Connect IF genescope output terminal t
7、o TP3 & TP4 (GND) in series with a 1000Pf capacitor, connect scope input terminal to TP5 & TP4 (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 FM RF ALIGNMENT STEP SIGNAL SOURCE (FM Signal Gen.) CONNECT TO SET SIGNAL TO ALIGNMENT INDICATOR (Oscilloscope,
8、VTVM) CONNECT TO SET RADIO DIAL TO ADJUSTADJUST FORREMARKS L502 (Osc. coil) 187.35 MHz(Lowest end)stretch or (modulated)squeeze TP1 & TP2108.25 MHzTerminalsVC 501AVolume 2through matching network(modulated)across speaker (Highest end)(Osc. trimmer)Maximumcontrol at if necessaryvoice coilL503 (RF coi
9、l)max. position 388 MHz88 MHzstretch or (modulated)squeeze 106 MHzVC 501B 4(modulated)106 MHz (RF trimmer) 5 Repeat steps 3 and 4 as necessary to minimize 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 INDICAT
10、OR (Oscilloscope, VTVM) CONNECT TO SET RADIO DIAL TO ADJUSTADJUST FORREMARKS 515 KHzT 502 1(modulated)(Lowest end)(Osc. coil) 1635 KHzVC 501CVolume 2A standard radiation(modulated)Across speaker(Highest end)(Osc. trimmer)Maximumcontrol at loop ant.600 KHzvoice coilL 504max. position 3(modulated)600
11、KHz(ant. coil) 1400 KHzVC 501D 4(modulated)1400 KHz(ant. trimmer) 5 Repeat steps 3 and 4 as necessary to minimize tracking error and also steps 1 and 2 if necessary Applicable unit : 1This model is using CD drive unit No. SANYO DA11B3V 2The alignment for CD section is fully automatic and no adjustme
12、nt is reguired ALIGNMENT PROCEDURE FOR CD SECTION 1 ) Check source voltage, DC or 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 A
13、DJUSTMENT. ( 1 ) TAPE SPEED ADJUST MTT-211NA (3150 Hz) TEST AC BIAS FREQUENCY ALIGNMENT : 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. ( 2 ) HEAD A
14、ZIMUTH ADJUSTMENT .Test PointAdjustFrequencyFrequency Observe atObserve 2.1 - Connect 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 -
15、Press PLAY and set VOLUME at reference output. 2.4 - Adjust the azimuth adjustment 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 CN207 62KHz 1 Ra 10 ohm Rb 10 ohm 4 INPUT OUTPUT VTVM F
16、REQUENCY COUNTER SO457 FIG.2 MOTOR SPEAKER TERMINALS AZIMUTH ADJ. SCREW TAPE IS REQUIRED R/P HEAD OSCILLOSCOPE CH. 2 3150 Hz CH. 1 FREQUENCY COUNTER FIG.1 R/P HEAD RRCD 1300? TUNER IC 501 U.B.S. Q206 Q207 FUNCTION SELECTOR SW 201 TAPE R/P IC 401 AUDIO CONTROL VR351 MUTING CIRCUIT Q204 Q205 POWER AMP
17、LIFIER IC201 CD MECHANISM DA11 B3N CD SERVO SYSTEM U701 U702 KEY BOARD CD DISPLAY 9V MAIN SUPPLY D301 D302 D303 D304 AC IN BATT. 12V DC 6V DC 9V R-CH SP FM ANTENNA R/P HEAD 6V REG Q201 Q202 Q203 E. HEAD REC IR RECEIVER L-CH SP RRCD 1300? RRCD 1300? RRCD 1300? RA CD TA RA TA CD RA TA CD L-CH GND R-CH
18、 R-CH GND L-CH R-REC GND L-REC TO TAPE PCB CD 7V R CH L CH MW FM RA 6V L-CH GND R-CH L-CH GND R-CH R-CH GND L-CHL-CH GND R-CHL-CH 115 R-CH MW/LW OSC RED AMIF YELLOW TP4 TP1 TP2 TP3 TP5 UNIT :RESISTOR IN OHM CAPACITOR IN F INDUCTOR IN H UNLESS OTHER SPECIFY L-CH R-CH GND +12V GND SYNC + C201 1u C202
19、20n Q203 9014C ACDC 4 5 6 SW351B 2P2TD 1 2 3 SW351A 2P2TD 3 2 1 4 VR351A 50KB R205 47K R203 220K D210 1N4148 15 14 13 16 SW201D SK43D06-GB7 1 2 3 4 5 6 7 817 18 19 20 21 22 23 24 9 10 1114 15 16 1213 IC501 ( SP2111 ) C507 100n + C505 u47 R501 10 C503 30P D502 1N4148 D501 1N4148 C502 30P + C528 10u C
20、504 10n C517 100n + C235 u47 11 10 9 12 SW201C SK43D06-GB7 3 2 1 4 SW201A SK43D06-GB7 Q206 9014C R235 3K3 R207 33K R206 5K6 7 6 5 8 VR351B 50KB + C236 u47 R234 680K Q207 9014C + C237 u47 R231 680K 1 2 CN211 2PINS + C513 4u7 + C510 4u7 12 L503 4.5X3T5 C501 20P R356 2K7 R353 2K7 C354 120n(M) C352 120n
21、(M) 1 2 3 SO352 3PINS 1 2 3 SO351 3PINS R257 5K6 R256 5K6 + C520 470u C512 10n C509 10n + C203 100u D301 IN4001 D302 IN4001 D303 IN4001 D304 IN4001 + C306 1000u 16V MW ANT L504 1 2 CN502 2PINS R508 3K3 +C516 1u 1 2 CN552 2PINS 3 2 16 4 7 T501 2492 + C518 u47 R517 4K7 C519 1n R516 1K + C533 1u + C506
22、 4u7 CF501 465KHz C521 7P R504 18K R513 12K R510 12K R506 18K R505 12K R507 12K C523 22P(N330) R201 39K C522 22P(N330) 1 2 3 CN201 3PINS C242 1n8(M) C241 1n8(M) C514 1n2(M) C511 1n2(M) R230 56K + C234 u47 C244 68P(NPO) C245 68P(NPO) R229 3K3 R355 8K2 R352 8K2 C526 140P(NPO) 12 L501 4.5X3T5 P510 FM A
23、NT R503 470 CF504 10.7MS3 12 L502 5x2T5 3 2 16 4 7 T502 9330 52 VC501B PVC126 51 VC501A PVC126 53 VC501C PVC126 54 VC501D PVC126 C351 40n(Y5P) R351 560 R354 560 C353 40n(Y5P) R236 27K R232 27K T H E R M A L F U S E C XFRM Q202 9014C Q201 2SB772Q 7 6 5 8 SW201B SK43D06-GB7 R202 33K R204 1K C211 100n
24、R228 1K5 CF503 10.7 MG77 R509 220 1 2 CN501 2PINS LED651 3MM GREEN C515 100n + C210 2200u 16V 1 2 CN301 2PINS R502 470 3 2 11 108 7 9 5 6 1 12 4 GND IC201 DV3287B 5 1 3 4 2 J261A STJ 5P/2P2T 1 2 3 CN205 3PINS + C223 100u C301 20n C302 20n C303 20n C304 20n R233 56K + C233 470u R239 390K R225 10K Q20
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