Jvc-KDG-638-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2007 Victor Company of Japan, Limited No.MA292 2007/1 CD RECEIVER MA29220071 SERVICE MANUAL KD-G631E,KD-G631EX,KD-G631EU, KD-G631EY,KD-G632E,KD-G632EX, KD-G632EU,KD-G632EY,KD-G635U, KD-G635UN,KD-G635UH,KD-G635UT, KD-G634UI,KD-G638UF COPYRIGHT 2007 Victor Company of Japan, Li

2、mited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade) TABLE OF CONTENTS 1PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 (for europe) RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA292) SPECIFICATION Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront/Rear50 W per channel Continuous Power Output (RMS)

6、 Front/Rear19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total har- monic distortion. Load Impedance4 (4 to 8 allowance) Tone Control RangeBass12 dB at 60 Hz Mid-range12 dB at 1 kHz Treble12 dB at 10 kHz Frequency Response40 Hz to 20 000 Hz Signal-to-Noise Ratio70 dB Line-Out Lev

7、el/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Other TerminalsCD changer, Steering wheel remote input, USB input jack TUNER SECTION Frequency RangeFM87.5 MHz to 108.0 MHz AM (for europe)MW: 522 kHz to 1 620 kHz LW: 144 kHz to 279 kHz AM (for asia)531 kHz to 1 602 kHz FM TunerUsable Sen

8、sitivity11.3 dBf (1.0 V/75 ) 50 dB Quieting Sensitivity16.3 dBf (1.8 V/75 ) Alternate Channel Selectivity (400 kHz) 65 dB Frequency Response40 Hz to 15 000 Hz Stereo Separation30 dB MW Tuner (for europe)Sensitivity/Selectivity20 V/35 dB LW Tuner (for europe)Sensitivity50 V AM Tuner (for asia)Sensiti

9、vity20 V Selectivity35 dB CD PLAYER / USB MEMORY SECTION TypeCompact disc player Signal Detection SystemNon-contact optical 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 me

10、asurable limit MP3 Decoding Format: (MPEG1/2 Audio Layer 3)Max. Bit Rate : 320 kbps WMA (Windows Media Audio) Decoding FormatMax. Bit Rate : 192 kbps Playable USB memoryFormatFAT 12/16/32 StorageLess than 4 GB (1 partition type) Playable Audio FormatMP3/WMA Max. CurrentLess than 500 mA GENERAL Power

11、 RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Operating Temperature0C to +40C Dimensions (W H D) (approx.) Installation Size182 mm 52 mm 150 mm Panel Size188 mm 58 mm 12 mm Mass1.4 kg (excluding accessories) RadioFans.CN 收音机爱 好者资料库 (No.MA29

12、2)1-3 SECTION 1 PRECAUTIONS 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 ad

13、justment or operation check. RadioFans.CN 收音机爱 好者资料库 1-4 (No.MA292) 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 pre

14、vent this 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

15、workbench 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 opt

16、ical pickup 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

17、the laser 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

18、flexible 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

19、 cable carefully 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 t

20、o the short 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

21、 flexible wire. 1M (caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate Wires Push switch Pickup Base board Pickup Connector Flexible wire Frame CD mechanism assembly (No.MA292)1-5 1.5Important for laser products REPRODUCTION AND POSITION OF LABELS and PRINT WARNING

22、 LABEL and PRINT (No.MA292)1-7 SECTION 3 DISASSEMBLY 3.1Main body 3.1.1Removing the Bottom cover (See Fig.1) (1) Disengage the five hooks a engaged Bottom cover. Fig.1 3.1.2Removing the Front chassis (See Fig.2) (1) Remove the two screws A (both side) attaching the Front chassis. (2) Disengage the t

23、wo hooks b (both side) engaged the Front chassis. Fig.2 3.1.3Removing the Rear bracket (See Fig.3) (1) Remove the one screw B attaching the remote cable. (only for Europe models) (2) Remove the one screw C attaching the antenna jack. (3) Remove the one screw D attaching the LINE OUT jack. (4) Remove

24、 the one screw E attaching the CD-CH jack. (5) Remove the one screw F attaching the IC bracket. (6) Remove the two screws G attaching the 16pin connector jack. (7) Remove the three screws H attaching the Rear bracket. Fig.3 Hook aHook aHook a Hook b A BEHHH CDFGG 1-8 (No.MA292) 3.1.4Removing the Hea

25、t sink (See Fig.4) (1) Remove the two screws J and three screws K attaching the Heat sink. Fig.4 3.1.5Removing the Main board assembly (See Fig.5) (1) Remove the three screws L attaching the Main board as- sembly. (2) Disconnect the connector CN501 connected the Main board assembly and CD board asse

26、mbly. Fig.5 3.1.6Removing the CD mechanism assembly (See Fig.6) (1) Remove the three screws M attaching the CD mechanism assembly. Fig.6 JK JKK LL L CN501 MMM (No.MA292)1-9 3.2Front panel assembly 3.2.1Removing the Rear cover (See Fig.7) (1) Remove the Volume knob from Front panel assembly. (2) Remo

27、ve the five screws N attaching the Rear cover. (3) Disengage the twelve hooks c engaged Rear cover. Fig.7 3.2.2Removing the Switch board assembly (See Fig.8) (1) Disengage the illumination lens from Front cover assem- bly. (2) Lift up the Switch board assembly and take out it. CAUTION: Detach knob a

28、nd spring are easy to come off, do not lost them. Fig.8 3.3CD mechanism assembly For CD mechanism, please refer mechanism manual TN2007-1010 (No.MY005, No.MY005B). NN N N N Hook cHook cHook cHook c Hook c Hook c Hook c illumination lens 1-10 (No.MA292) SECTION 4 ADJUSTMENT 4.1Test instruments requir

29、ed for adjustment (1) Digital oscilloscope (100MHz) (2) Electric voltmeter (3) Digital tester (4) Tracking offset meter (5) Test Disc JVC: CTS-1000 (6) Extension cable for check EXTSH002-22P 1 4.2Standard measuring conditions Power supply voltage : DC14.4V(10.5 - 16V) Load impedance : 20K(2 Speakers

30、 connection) Output Level : Line out 2.0V (Vol. MAX) 4.3Standard volume position Balance and Bass & Treble volume : Indication 0 Loudness : OFF 4.4Dummy load Exclusive dummy load should be used for AM, and FM. For FM dummy load, there is a loss of 6dB between SSG output and an- tenna input. The loss

31、 of 6dB need not be considered since direct reading of figures are applied in this working standard. 4.5How to connect the extension cable for adjustment CAUTION : Be sure to attach the heat sink and rear bracket onto the power amplifier and regulator respectively, before supply the power. If voltag

32、e is applied without attaching those parts, the power amplifier IC and regulator IC will be destroyed by heat. Heat sink Rear bracket EXTSH002-22P Extension cable (No.MA292)1-11 SECTION 5 TROUBLESHOOTING 5.116 PIN CORD DIAGRAM (for Europe) 8 7 6 5 16 15 14 13 4 3 2 1 12 11 10 9 BK RD NC BL/WH WH GN

33、VI GY YL OR/WH NC BR WH/BK GN/BK VI/BK GY/BK 7 RD 16 YL 15 OR/WH 8 BK 6 BL/WH 13 BR 3 GN 11 GN/BK 2 VI 10 VI/BK 12 WH/BK 1 GY 9 GY/BK RD RD 7 YL 4 6 8 5 2 7 8 1 2 5 6 3 4 4 WH 1 3 5 7 2 4 6 8 NCBR NCYL BL/WHOR/WH RDBK 1 3 5 7 2 4 6 8 VI GY WH GN VI/BK GY/BK WH/BK GN/BK BK RD BL WH BR Black Red Blue

34、White Brown GNGreen VIViolet GYGray YLYellow OROrange RRRear Right FRFront Right FLFront Left RLRear Left REMOTERemote ILLIlluminations Control ANT ACC TEL Auto Antenna ACC Line Telephone Muting GNDGround MEMORYMemory Backup Battery+ RR+ RR- RL+ RL- FL+ FL- FR+ FR- ACC MEMORY ILL GND REMOTE TEL 1-12

35、 (No.MA292) 5.216 PIN CORD DIAGRAM (for Asia) 8 7 6 5 4 3 2 1 16 15 14 13 12 11 10 9 BK RD BL BL/WH WH GN VI GYGY/BK VI/BK GN/BK WH/BK BR NC OR/WH YL POWER ANTENNA CAUTION! REMOTE OUTPUT ONLY GND Black RD BK Red BLBlue WHWhite GNGreen VIViolet GYGray OROrange YLYellow RR FR FL RL REMOTE ANT ACC ILL

36、GND MEMORY Rear Right Front Right Front Left Rear Left Remote out ACC Line Illuminations Control Ground Memory Backup Battery+ Auto Antenna BRBrown TELTelephone muting 16 YL 8 BK 7 RD 15 OR/WH 13 BR 3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH 12 WH/BK 1 GY 9 GY/BK 5 BL/WH 6 BL MEMORY GND ACC ILL TEL RL+ RL- RR

37、+ RR- FL+ FL- FR+ FR- REMOTE ANT (No.MA292)1-13 5.316 PIN CORD DIAGRAM (for China) 8 7 6 5 16 15 14 13 4 3 2 1 12 11 10 9 BK RD1 NC OR/WH WH GN VI GY BL/WH GN/BK VI/BK GY/BK RD1 YL1 BK BL GN GN/BK VI VI/BK WH/BK GY GY/BK RD3 RD2 YL 2 WH 1 3 5 7 2 4 6 8 NCYL2 OR/WH RD2BK 1 3 5 7 2 4 6 8 VI GY WH GN V

38、I/BK GY/BK WH/BK GN/BK BK RD BL WH BR Black Red Blue White Brown GN VIViolet GYGray YLYellow YL1 BRNC Green BR BL WH/BK BL OR/WH BR BL/WH 7 8 5 2 4 6 7 1 5 6 3 4 8 2 7 16 8 13 15 6 2 11 3 12 4 10 9 1 5 OROrange Contents Block diagram Standard schematic diagrams Printed circuit boards 2-1 2-2 2-8 CD-

39、ROM No.SML200701 SCHEMATIC DIAGRAMS CD RECEIVER No.MA292SCH 2007/1 KD-G631E,KD-G631EX,KD-G631EU KD-G631EY,KD-G632E,KD-G632EX KD-G632EU,KD-G632EY,KD-G635U KD-G635UN,KD-G635UH,KD-G635UT KD-G634UI,KD-G638UF COPYRIGHT 2007 Victor Company of Japan, Limited. Lead free solder used in the board (material :

40、Sn-Ag-Cu, melting point : 219 Centigrade) (for europe) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade) 2-1 Block diagram SPINDLE MOTOR POSITION SET SWITCH LOAD&FEED MOTOR SW1, SW2 PICK UP PSW SW1, SW2 IC501 BTL DRIVER IC521 RF AMP IC581 CD L.P.F. IC931 5V REGULA

41、TOR IC401 USB DECODER VF1 VF2 VT1 VT2 MD LD FOP TRP TRVP SPOUT IRQ STAT MLD MDATA MCLK NRST NPWDOWN CD-MLD CD-DATA CD-MCLK CD-STAT CD-NRST I2C-DATA I2C-CLK I2C-REQ USB-DET USB_CON USB-RST TU1 FM/AM TUNER IC701 CPU IC161 E.VOLUME Q321, Q331 LINE OUT MUTING Q785 SUB MUTING Q301 Q781,Q782 MUTE DRIVER I

42、C301 POWER AMP. IC901 REGULATOR EACH BLOCK TU.L/R EXT ACC, REMOTE ANT ANT SW5V,ACC5V VDD5V,CD8V 3.3V,9V,ILM.10V MEMORY IN TELMUTETELMUTE CD-USB.L/R USB-D+/-D+/- POWER, CD_ON, ANT DIMOUTILM.ADJ FL+/- FR+/- RL+/- RR+/- VOL_CLK VOL_SDA MUTE SUB-MUTE MPXW ANT SW1 SW2 LM MSW FEED+/- SP+/- VF1, VF2, VT1,

43、VT2, LD, MD SP+/- FEED+/- TRK+/- FOCUS+/- SPK BATTERY FSU AFS Q-OUT SSTOP TUSDA TUSCL KEY0 to 2 LCDCL LCDDA LCDCE REMOCON VOL1 VOL2 OUTL/R LINE OUT FRONT FOCUS & TRACKING COIL TRK+/- FOCUS+/- CD mechanism control section System control & Main amplifier section S601 to S605 S607 to S618 KEY MATRIX KE

44、Y0 KEY1 KEY2 IC661 LCD DRIVER LCD1 LCD DISPLAY COM1 to COM3 S1 to S52 LCDCL LCDDA LCDCE IC681 REMOCON REMOCON JS686 ENCODER D631,D632 VOL LED D634 to D652 LIGHTING DISPLAY CN601 CN701 CN402 CN403 CN401 VOL1 VOL2 ILM.10V ACC5V ILM.10V CHANGER CONTROLIC801 JVC BUS Q891 TEL.MUTE D851 POWER ANT BUSSI, B

45、USSO, /BUS-I/O, BUS-I/O, BUSSCK, BUSINT JBUS-SCK JBUS-SI/SO CH.L/R STEERING REMOTE STEERING IC702,S701 RESET IC771 EPROM RST SDA SCL X702 32.768kHz X701 8MHz X521 16.9344kHz X401 12MHz Q882,Q883 IC71 RDS DETECTOR RDSDA RDSCL CN501 CN702J801CN901J321 J1 D5VMEMORY IN MUTE PS2MEMORY IN Q976,Q977 ILLUMI

46、NATIONDIMIN Q881 DIMMER INPUT LFOUT RFOUT LFOUT RFOUT LROUT RROUT LCD/Key control section USB Jack section CN001 PSW Used for KD-G631,KD-G632 Used for KD-G634,KD-G635,KD-G638 Used for KD-G634,KD-G635,KD-G638 X71 4.332MHz USB AMPKILLSTBY FRONT L/R Q341, Q351 LINE OUT MUTING SUB-L.RL SUB-R.RR LINE OUT

47、 REAR REAR/ SUBWOOFER L/R Used for KD-G631,KD-G632 IC981 1.5V REGULATOR 1.5VVDD5V 2-2 Parts are safety assurance parts. When replacing those parts make sure to use the specified one. Standard schematic diagrams Main section (for Europe version) C722 C312 IC801 C783 R717 R814 C707 R718 R719 R765 C311

48、 R738 R17 L1 C81 C91 R728 Q321 R747 R24 IC701 R781 C716 R819 CN701 C313 R304 R754 C717 R810 C314 C303 C304 R802 R803 IC931 R801 R808 R813 C801 R811 R748 C802 L702 R750 R751 C781 R332 R322 Q331 Q351 R323 C321 R804 C310 L701 R737 R736 R303 R313 C892 R314 R782 R708 J321 C12 R752 C174 C721 Q341 C319 R72

49、1 R774 R805 R806 R807 C308 X701 R783 D712 R727 C718 R753 C708 R720 C301 D998 R725 C701 C702 D997 D996 D995 R711 C891 R891 C968 C966 C967 C965 C964 R713 R977 R976 C963 C962 C961 IC301 R744 CN901 C317 TU1 R715 Q977 C302 D994 D993 D992 D991 R743 R742 C719 R755 R756 R757 C315 R729 C706 C320 R311 R312 R301 R302 R746 C318 C322 C323 C324 C325 R901 R352 R342 J1 Q784 D782 Q976 Q891 C307 R730 R731 R716 R882 CN702 C341 C705 D971 Q881 R724 IC771 C771 R723 J801 R704 R703 R722 C990 R91 R82R81 R92 R74 X71 R72 R71 D785 R367 R363 R387 R38