Jvc-KDG-502-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LIMITED No.MA092 2004/4 CD RECEIVER MA09220044 KD-G502 TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPECIFIC S

2、ERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 4ADJUSTMEN

3、T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

4、-6 Area suffix E - Continental Europe EX - Central Europe EU-Turkey RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA092) SPECIFICATION Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront50 W per channel Rear50 W per channel Continuous Power Output (RMS

5、) Front19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Rear19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Load Impedance4 (4 to 8 allowance) Tone Control RangeBass10 dB at 100 Hz Treble10 dB at 10 kHz Frequenc

6、y Response40 Hz to 20 000 Hz Signal-to-Noise Ratio70 dB Line-Out Level/Impedance2.0 V/20 k load (full scale) Output Impedance1 k TUNER SECTION Frequency RangeFM87.5 MHz to 108.0 MHz AM(MW) 522 kHz to 1 620 kHz (LW) 144 kHz to 279 kHz FM TunerUsable Sensitivity11.3 dBf (1.0 V/75 ) 50 dB Quieting Sens

7、itivity16.3 dBf (1.8 V/75 ) Alternate Channel Selectivity (400 kHz) 65 dB Frequency Response40 Hz to 15 000 Hz Stereo Separation30 dB Capture Ratio1.5 dB MW TunerSensitivity20 V Selectivity35 dB LW TunerSelectivity50 V CD PLAYER SECTION TypeCompact disc player Signal Detection SystemNon-contact opti

8、cal pickup (semiconductor laser) Number of channels2 channels (stereo) Frequency Response5 Hz to 20 000 Hz Dynamic Range96 dB Signal-to-Noise Ratio98 dB Wow and FlutterLess than measurable limit MP3 decoding formatMPEG 1/2 Audio Layer 3 Max. Bit Rate:320 Kbps GENERAL Power RequirementOperating Volta

9、geDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Operating Temperature0C to +40C Dimensions (W H D)Installation Size (approx.)182 mm 52 mm 150 mm Panel Size (approx.)188 mm 58 mm 12 mm Mass (approx.)1.4 kg (excluding accessories) RadioFans.CN 收音机爱 好者资料库 (No.MA092)1-3 SE

10、CTION 1 PRECAUTION 1.1Safety Precautions ! Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. ! Please use enough caution not to see the beam directly or touch it in case of an adjustment

11、or operation check. RadioFans.CN 收音机爱 好者资料库 1-4 (No.MA092) 1.2Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this

12、 when performing repairs. 1.2.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players. Be careful to use proper grounding in the area where repairs are being performed. (1) Ground the workbench

13、 Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it. (2) Ground yourself Use an anti-static wrist strap to release any static electricity built up in your body. (3) Handling the optical pick

14、up In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) Do not use a tester to check the condition of the laser

15、 diode in the optical pickup. The testers internal power source can easily destroy the laser diode. 1.3Handling the traverse unit (optical pickup) (1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the flexible

16、cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector. (3) Handle the flexible cable ca

17、refully as it may break when subjected to strong force. (4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it. 1.4Attention when traverse unit is decomposed *Please refer to Disassembly method in the text for the CD pickup unit. Apply solder to the sho

18、rt land before the flexible wire is disconnected from the connector on the CD pickup unit. (If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short land after connecting the flexible

19、 wire. 1M (caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate Pickup Short-circuit point (Soldering) Flexible wire (No.MA092)1-5 1.5Important for laser products 1.CLASS 1 LASER PRODUCT 2.DANGER : Invisible laser radiation when open and inter lock failed or defeated

20、. Avoid direct exposure to beam. 3.CAUTION : There are no serviceable parts inside the Laser Unit. Do not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions. 4.CAUTION : The CD,MD and DVD player uses invisible laser radiation and is equipped with safety switches which pre

21、vent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated. It is dangerous to defeat the safety switches. 5.CAUTION : If safety switches malfunction, the laser is able to function. 6.CAUTION : Use of controls, adjustments or performance of procedures ot

22、her than those specified here in may result in hazardous radiation exposure. REPRODUCTION AND POSITION OF LABELS ! Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check. WARNING LABEL CAUTION : Visible and Invisible laser radiation when open a

23、nd interlock failed or defeated. AVOID DIRECT EXPOSURE TO BEAM. (e) VARNING : Synlig och osynling laserstrlning nr den ppnas och sprren r urkopplad. Betrakta ej strlen. (s) VARO : Avattaessa ja suojalukitus ohitettuna tai viallisena olet alttiina nkyvlle ja nkymttmlle lasersteilylle. Vlt steen kohdi

24、stumista suoraan itseesi. (f) ADVARSEL : Synlig og usynlig laserstrling nr maskinen er ben eller interlocken fejeler. Undg direkte eksponering til strling. (d) CLASS 1 LASER PRODUCT 1-6 (No.MA092) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS Please refer to KD-G501 No.MA038 about this section. SECTION 3

25、DISASSEMBLY Please refer to KD-G501 No.MA038 about this section. SECTION 4 ADJUSTMENT Please refer to KD-G501 No.MA038 about this section. SECTION 5 TROUBLESHOOTING Please refer to KD-G501 No.MA038 about this section. (No.MA092)1-7 (No.MA092) AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1ch

26、ome,Ohwatari-machi,Maebashi-city,371-8543,Japan VICTOR COMPANY OF JAPAN, LIMITED WPC Printed in Japan SCHEMATIC DIAGRAMS CD RECEIVER No.MA092SCH 2004/4 COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LTD. KD-G502 Area suffix E - Continental Europe EX - Central Europe EU- Turkey Contents Block diagram Standa

27、rd schematic diagrams Printed circuit boards 2-1 2-2 to 4 2-5 to 7 CD-ROM No.SML200404 ! Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. Safety precaution ! Please use enough caution no

28、t to see the beam directly or touch it in case of an adjustment or operation check. 2-1 Block diagram POSITION SET SWITCH LOAD&FEED MOTOR SPINDLE MOTOR SW1, SW2 PICK UP PSW SW1, SW2 CN501 IC501 CD DRIVER IC541 DSP IC521 RF AMP IC581 CD L.P.F. VF1,VF2, VT1,VT2, MD,LD DMO,FMO TRO,FOO BUS0 to BUS3 BUCK

29、,CCE RST RFGC,RF RFRP,RFDC TEB,SEL TE,FE CN601 S601 to S617 KEY MATRIX KEY0 KEY1 KEY2 IC601 LCD DRIVER LCD1 CN701 TU1 FM/AM TUNER IC701 CPU IC161 E.VOLUME IC301 POWER AMP. IC901 REGULATOR SPK BATTERY EACH BLOCK L- CH R- CH OUTLF OUTLR OUTRF OUTRR FRONT L, REAR L FRONT R, REAR R CD.L CD.R J321 LINE O

30、UT FRONT LEFT (+) FRONT LEFT (- ) FRONT RIGHT (+) FRONT RIGHT (- ) REAR LEFT (+) REAR LEFT (- ) REAR RIGHT (+) REAR RIGHT (- ) COM1 COM2 COM3 S1 to S52 LCDCL LCDDA LCDCE VOLDA VOLCL J1 ANT SW1,SW2,PSW LM0 LM1 FEED+ FEED- SPINDLE+ SPINDLE- VF1,VF2 VT1,VT2 LD,MD TRACKING+ TRACKING- FOCUS+ FOCUS- SPIND

31、LE+ SPINDLE- FEED+ FEED- TRACKING+ TRACKING- FOCUS+ FOCUS- CN901 SD/ST MONO SM,FM/AM SEEK/STOP KEY0 KEY1 KEY2 LCDCL LCDDA LCDCE REMOCON ENC1 ENC2 IC602 REMOCON REMOCON FM/AM OSC FM VT AM VTPLLCE PLLDA PLLCL PLLDI IC771 EPROM SDA SCL IC31 PLL IC71 RDS DETECTOR RDSCL RDSDA IC702 RESET RESET CDRW EN601

32、 ENCODER ENC1 ENC2 J801CN702 CH.L CH.R STEERING IC801 JVC BUS SO,I/O INT,SCK CH.SCK STEERING CABLE ASSY CD CHANGER CONTROL SI BCK LRCK AOUT IC481 DAC IC401 MP3/WMA LSI & INT.SRAM MP3STBY MP3CLK MP3DOUT MP3RESET MP3REQ MP3DIN DAC- CDTI DAC- CCLK DAC- CSN DAC- PDN AOUTL- AOUTL+ AOUTR- AOUTR+ BCK LRCK

33、BCK LRCK AOUT 2-2 SHEET 1 Main amplifier section To CN601 (SHEET 3) Standard schematic diagrams (SHEET 2) Parts are safety assurance parts. When replacing those parts make sure to use the specified one. C312 IC801 C783 R738 R808 Q91 R3 C711 R739 R740 C311 C165 R734 L1 D1D2 IC161 R7 IC702 R5 R4 R6 R7

34、35 R736 IC701 R743 C177 R744 R745 R807 Q1 C178 C179 IC31 Q31 C170 C180 C902 R803 R804 R805 R806 C50 R810 R809 R801 C801 SI SCK C91 Q2 R81 R91 SO C78 C802 TU1 D331 Q241 D321 Q3 Q52 C52 Q10 C781 R332 R322 R331 R321 R706 L701 R182 C36 C35 C46 R181 C161 C162 C171 C163 D240 R248 R746 C39 C47 R708 R171 C5

35、 R161 R759 R83R93 R742 Q81 R760 IC71 Q9 C72 C76 C71 C75 C74 R793 VSS R783 R720 R719 VDD R758 VPP C73 C77 C32 D84 C8 C49 X1 C706 R741 R243 R242 RESET TD C243 C901 R244 C301 C241 D243 C173 D998 RD R756 X701X702 C316 D997 D996 Q84 C83 D995 R53 C172 R707 R54 Q51 C55 C891 R891 C54 C968 C966 C967 C965 C96

36、4 Q6 R977 R976 C963 C962 C961 IC301 R714 R56 R57 R58 RA30 R2 D902 R761 C192C191 Q7 C168 C167 C194 C81 C175 C707 R762 IC901 Q977 C302 R162 D712 C242 D994 D993 D992 D991 R43 C38 R715 R44 R716 R163 CN701 R747 R748 R749 C33 Q53 R705 R906 R59 C713 R311 R312 R301 R302 C322 C323 C324 C325 D901 Q901 R901 R3

37、52 R342 R341 R351 R84 R702 J1 R729 R10 Q784 D782 R172 C193 C169 R173 Q891 C37 R32 C34 C176 C174 C166 C164 D341 R704 D351 R737 R882 D241 R757 R245 R241 CN702 C712 D971 Q881 S701 D714 S703 R764 R730 R731 S702 IC771 C771 R732 D715 D716 D717 J801 C722 R776 R777 RA701 J321 R713 C31 C914 R1 C43 C1 L901 Q5

38、 C40 C4 D701 C906 C2 C716 C313 R42 R38 R751 C314 C303 C304 R802 R92 C92 C82 R82 C910 C905 C911 C48 Q321 Q341 R165 R164 R323 R333 C321 X31 R31 C903 C9 C719 D703 C245 R750 D244 C919 R9 R39 C41 R51 D892 C319 D972 C907 R74 X71 C308 D781 R753 R721 R722 R73 R723 R72 R71 R246 R247 C94 D242 Q331 R726 R728 C

39、3 R11 R972 C701 C702 R33 C703 C704 C85 C95 C718 R52 R55 C53 D891 R892 Q782 D710 D711 CN901 C913 C710 C908 C909 C317 D705 D707 B902 C246 D709 D702 D704 D706 D708 R12 R971 C315 R904 C717 R905 D784 C912 C782 C320 Q902 R763 C6 C318 L702 R903R902 D4 C784 Q781 R725 R40 R353 R343 D718 R41 R174 R175 C42 C45

40、 Q976 C307 C904 C44 Q351 C51 C915 R752 R766R767 C708 C705 R701 C709 D713 C971 D5 C341 C84 R754 R755 C881 R771 R772 R768 R881 R717 R718 C990 0.47 HD74HC126FP-X 0.01 4.7k 330 4.7k 220/10 4.7k 4.7k 0.47 0.22 2.2k 4.7u TEA6320T-X 4.7k IC-PST3433U-X 47k 3.3k 47k 2.2k 2.2k UPD784217AGC270 10k 0.033 10k 10

41、k 100k 0.0056 4.7/25 TB2118F-X 10 UN2211-X 4.7/25 4.7/25 2.2/50 100 22k 100k 10k 100P 100 22k 47k 0.047 1/50 8.2K 8.2K 0.01 0.01 QAU0313-001 MA111-X 2SD601A/QR/-X MA111-X 2SD601A/QR/-X 0.01 UN2211-X 100/6.3 820 820 2.2k 2.2k 150k 4.7u 270 7P 10P 0.01 270 1/50 1/50 1/50 1/50 MA111-X 220 10k 1000P 0.0

42、1 3.3k 220k 0.1/50 220k 47k 4.7k 4.7k 10k 47k RB160M-30-X SAA6579T-X UN2111-X 0.0220.01 560p 47p 82p 0 10k 1.2k 0 47k 2.2/50 47/6.3 47P MA111-X 0.001 0.047 10k 180k 22k 0.047 3300/16 12k 0.47 1/50 RB160M-30-X 1/50 RB160M-30-X 47k QAX0617-001Z QAX0401-001 4.7/25 RB160M-30-X RB160M-30-X UN2111-X 0.1 R

43、B160M-30-X 47k 1/50 150k 10k 2SD601A/QR/-X 0.47/50 0.1 1k 0.1 100P 100P 100P 100P 100P 2SB624/4/-X 12k 27k 100P 100P 100P LA47515 10k 10k 15k 470 2.2k 47k MA111-X 47k 100/16 47/16 UN2211-X 0.0056 0.033 0.01 1/50 0.22 0.047 47k HA13164A QMFZ047-150-T 2SB709A/QR/-X 0.47 22k MA8062/M/-X 22/16 RB160M-30

44、-X RB160M-30-X RB160M-30-X RB160M-30-X 470 0.001 1k 220 1k 2.2k QNZ0605-001 4.7k 4.7k 4.7k 47/6.3 47k 1k 47k 0.01 27k 27k 27k 27k 0.1 0.1 0.1 0.1 1N5401-TU-15 UN2211-X 1k 820 820 2.2k 2.2k 0 0 QNB0100-002 47k 10K UN2111-X MA111-X 22k 100/16 4.7/25 2.2k UN2211-X 10P 6.2k 0.047 0.22 0.0082 0.22 0.0082

45、 MA111-X 47k MA111-X 0 4.7K MA111-X 2.2k 47 47k QGA2006F1-02 0.01 RB160M-30-X UN2211-X QSW0451-001 UDZS5.6B-X QSW1049-001Z 100 10k 47k QSW0451-001 BR24L16F-W-X 0.047 10K SML-310VT/JK/-X SML-310VT/JK/-X SML-310VT/JK/-X QNZ0095-001 270P 47k 47k 1k QNN0489-001 100 100/10 100/16 10 0.047 2SD601A/QR/-X 2

46、2/16 QQR1378-002 2SB709A/R/-X MA111-X MA111-X 10/16 220/10 0.01 0.047 0.1 100P 2SD601A/QR/-X 100 10k 100P 100P 100P 47k 2SD601A/QR/-X 18k 0.0018 0.0018 18k UN2111-X 10/16 47/16 0.1 0.047 2SD1781K/QR/-X 2SD1781K/QR/-X 47k 47k 100 100 0.047 QAX0616-001Z 10 47/16 220/10 0.01 0.22 10k UDZS5.1B-X 10/16 0

47、 0 0.047 27k MA111-X 0.022 2SD601A/QR/-X 220/10 100 QAX0263-001Z 1/50 MA111-X 47k 1k 10k 2.2k 10k 2.2k 2.2k 1k 47K 0.012 MA111-X 2SD1781K/QR/-X 10k 10k 22/16 10K 2.2k 22P 27P 10k 27P 8P 0.001 0.001 100P 47k 2.2k 0.0047 MA111-X 47k UN2211-X QNZ0650-001 10/16 47/6.3 220/10 220/10 47/16 0 0.01 0 UN2211

48、-X 2.2k 4.7/50 5.6k 0.1 10k UDZS11B-X 0.01 0.082 0.022 UN2111-X 1k 0.01 22/16 4.7u 4.7k9.1k MA111-X 100/16 UN2111-X 10k 39k 100 100 10k 47k 47k 0.01 0.0027 UN2211-X 1/50 10/16 0.01 2SD1781K/QR/-X 330P 0.1 47k 2.2k22k 0.047 0.047 47k 0.01 MA111-X 0.1 MA111-X 0.047 0.012 820 10M 22/16 270 270 270 47K

49、10k 10k 0.01 SQ PSW VOLDA CH.L DAC-CDTI DAC-CCLK DAC-CSN KEY2 DAC-PDN DIMIN 8V INT 9V REMOCON ENC1 STEERING SI CD.L ENC2 KEY1 KEY0 LEVEL SW1 VOLCL LCDCL BUZZER OUTLR LCDCE LCDCL LCDDA I/O TU.R SCK SO SI CD.R OUTRF OUTRR CH.R LEDBLUE TU.L FM/AM CDON LEDRED LCDDA RST LCDCE LEDBLUE VOLDA SW5V VOLCL LEDRED MP3REQ CD.R I/O CD.L OUTLF SW2 A-GND 10V DIMOUT DIMOUT DIMOUT MP3DOUT SO ACC5V BUS0