Jvc-KDR-705-EU-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2009 Victor Company of Japan, Limited No.MA445 2009/3 CD RECEIVER MA44520093 SERVICE MANUAL KD-R701E, KD-R701EX, KD-R701EY, KD-R701EU, KD-R705U, KD-R705UN, KD-R705UT, KD-R705UH, KD-R707EE COPYRIGHT 2009 Victor Company of Japan, Limited Lead free solder used in the board (mat

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

3、 . . . . . 1-6 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. . . . . . 1-9 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5、. . . . . . . . . . . 1-24 (except KD-R705) RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA445) SPECIFICATION KD-R701 AUDIO AMPLIFIER SECTION Maximum Power OutputFront/Rear50 W per channel Continuous Power Output (RMS)Front/Rear19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic dist

6、ortion. Load Impedance4 (4 to 8 allowance) Tone Control RangeBass12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0 Middle12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25 Treble12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q = Fixed Frequency Response40 Hz to 20 000 Hz Signal

7、-to-Noise Ratio70 dB Line-Out Level/Impedance2.5 V/20 k load (full scale) Subwoofer-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Other TerminalUSB input jack, AUX (auxiliary) input jack, CD changer jack, Steering wheel remote input TUNER SECTION Frequency RangeFM87.5 MHz to 10

8、8.0 MHz AMMW: 522 kHz to 1 620 kHz LW: 144 kHz to 279 kHz FM TunerUsable Sensitivity9.3 dBf (0.8 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 Separation40 dB MW TunerSensitivity20 V Selectivity40 dB LW

9、 TunerSensitivity50 V CD PLAYER 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 measurable limit MP

10、3 Decoding Format: (MPEG1/2 Audio Layer 3)Max. Bit Rate: 320 kbps WMA (Windows Media Audio) Decoding FormatMax. Bit Rate: 320 kbps USB SECTION USB StandardUSB 1.1, USB 2.0 Data Transfer Rate (Full Speed)Max. 12 Mbps Compatible DeviceMass storage class Compatible File SystemFAT 32/16/12 Playable Audi

11、o FormatMP3/WMA Max. CurrentDC 5 V 500 mA GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) RadioFans.CN 收音机爱 好者资料库 (No.MA445)1-3 Design and specifications are subject to change without notice. KD-R705 Grounding SystemNegative ground Allowable Operating Temperature0C to +4

12、0C Dimensions (W H D): (approx.)Installation Size182 mm 52 mm 160 mm Panel Size188 mm 58 mm 12 mm Mass1.3 kg (excluding accessories) AUDIO AMPLIFIER SECTION Maximum Power OutputFront/Rear50 W per channel Continuous Power Output (RMS)Front/Rear19 W per channel into 4 , 40 Hz to 20 000 Hz at no more t

13、han 0.8% total harmonic distortion. Load Impedance4 (4 to 8 allowance) Tone Control RangeBass12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0 Middle12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25 Treble12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q = Fixed Frequency Respo

14、nse40 Hz to 20 000 Hz Signal-to-Noise Ratio70 dB Line-Out Level/Impedance2.5 V/20 k load (full scale) Subwoofer-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Other TerminalUSB input jack, AUX (auxiliary) input jack, CD changer jack TUNER SECTION Frequency RangeFM87.5 MHz to 108

15、.0 MHz AM531 kHz to 1 602 kHz FM TunerUsable Sensitivity9.3 dBf (0.8 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 Separation40 dB AM TunerSensitivity20 V Selectivity40 dB CD PLAYER SECTION TypeCompact

16、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 measurable limit MP3 Decoding Format: (MPEG1/2 Audio Layer 3)Max. Bit R

17、ate: 320 kbps WMA (Windows Media Audio) Decoding FormatMax. Bit Rate: 320 kbps USB SECTION USB StandardUSB 1.1, USB 2.0 Data Transfer Rate (Full Speed)Max. 12 Mbps Compatible DeviceMass storage class Compatible File SystemFAT 32/16/12 Playable Audio FormatMP3/WMA RadioFans.CN 收音机爱 好者资料库 1-4 (No.MA44

18、5) Design and specifications are subject to change without notice. KD-R707 Max. CurrentDC 5 V 500 mA GENERAL Power 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 Size18

19、2 mm 52 mm 160 mm Panel Size188 mm 58 mm 6 mm Mass1.3 kg (excluding accessories) AUDIO AMPLIFIER SECTION Maximum Power OutputFront/Rear50 W per channel Continuous Power Output (RMS)Front/Rear19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Load Impedance4

20、(4 to 8 allowance) Tone Control RangeBass12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0 Middle12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25 Treble12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q = Fixed Frequency Response40 Hz to 20 000 Hz Signal-to-Noise Ratio70 dB Lin

21、e-Out Level/Impedance2.5 V/20 k load (full scale) Subwoofer-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Other TerminalUSB input jack, AUX (auxiliary) input jack TUNER SECTION Frequency RangeFM87.5 MHz to 108.0 MHz FM-LO65.00 MHz to 74.00 MHZ AMMW: 522 kHz to 1 620 kHz LW: 144

22、 kHz to 279 kHz Usable Sensitivity9.3 dBf (0.8 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 Separation40 dB MW TunerSensitivity20 V Selectivity40 dB LW TunerSensitivity50 V CD PLAYER SECTION TypeCompac

23、t 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 measurable limit MP3 Decoding Format: (MPEG1/2 Audio Layer 3)Max. Bit

24、 Rate: 320 kbps (No.MA445)1-5 Design and specifications are subject to change without notice. WMA (Windows Media Audio) Decoding FormatMax. Bit Rate: 320 kbps USB SECTION USB StandardUSB 1.1, USB 2.0 Data Transfer Rate (Full Speed)Max. 12 Mbps Compatible DeviceMass storage class Compatible File Syst

25、emFAT 32/16/12 Playable Audio FormatMP3/WMA Max. CurrentDC 5 V 500 mA GENERAL Power 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 160 mm Panel Size188

26、 mm 58 mm 12 mm Mass1.3 kg (excluding accessories) 1-6 (No.MA445) SECTION 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 cautio

27、n not to see the beam directly or touch it in case of an adjustment or operation check. ! 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

28、 directly or touch it in case of an adjustment or operation check. (No.MA445)1-7 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). Tak

29、e care to prevent 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 laser products. Be careful to use proper grounding in the area where repairs are being performed

30、. (1) Ground the 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)

31、 Handling the optical 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

32、the condition of 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 sho

33、rted part of the 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) Ha

34、ndle the flexible 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 pickup unit.

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

36、 card wire. 1M (caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate 1M (caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate Mechanism control board CN102 Pickup Flexible wire Short land section 1-8 (No.MA445) 1.5Important for laser

37、products 1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation when open. Do not stare into beam. (Others) Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments. 3.CAUTION : Visible and/or invisible las

38、er radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. 4.CAUTION : This laser product uses visible and/or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed

39、 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 other than those specified here in may result in hazardous radiation exposure. REPRODUCTIO

40、N AND POSITION OF LABELS and PRINT ! Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check. WARNING LABEL and PRINT (No.MA445)1-9 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECT

41、ION 3 DISASSEMBLY 3.1Main body (Used figure are KD-R701) 3.1.1Removing the Bottom chassis (See Fig.1) (1) Remove the two screws A and one screw B attaching the Heat sink. (2) Remove the one screw C attaching the RCA jack. (3) Remove the one screw D attaching the Bottom chassis. (4) Slide to backward

42、 and then remove the Bottom chassis. Fig.1 3.1.2Removing the Front chassis (See Fig.2) (1) Remove the two screws E attaching the both side of the Front chassis. (2) Disengage four hooksaengaged both side of the Front chassis. Fig.2 3.1.3Removing the Main board (See Fig.3 to 5) (1) Remove the two scr

43、ews F and one screw G attaching the Side panel. (See Fig.3) Fig.3 (2) Remove the one screw H attaching the CD-CH jack. (See Fig.4) Fig.4 (3) Remove the three screws J attaching the Main board. (See Fig.5) (4) Disconnect the board to board connector CN501 connect- ed to CD mechanism. (See Fig.5) Fig.

44、5 3.1.4Removing the CD mechanism (See Fig.6) (1) Remove the three screws K attaching the CD mechanism. Fig.6 ABCDA Ehook ahook a FGF H J J CN501 K K K 1-10 (No.MA445) 3.1.5Removing the Function board (See Fig.7, 8) (1) Remove the three screws L attaching the connector brack- et. (See Fig.7) Fig.7 (2

45、) Disengage one hook b engaged connector bracket and slide to right ward and the take out the connector bracket. (See Fig.8) Fig.8 3.1.6Removing the Switch board (See Fig.9) (1) Remove the volume knob. (2) Remove the four screws M attaching the Rear cover. (3) Disengage ten hooks c engaged Rear cove

46、r. Fig.9 L hook b hook chook c hook chook c M M M (No.MA445)1-11 3.2CD MECHANISM assembly section Remove the CD MECHANISM assembly from the main body. 3.2.1Removing the MECHANISM CONTROL BOARD assembly (See Fig.1 and 2) (1)From the bottom side of CD MECHANISM assembly, remove the solders from the so

47、ldered sections (a, b and c) on the MECHANISM CONTROL BOARD assembly. (See Fig.1.) (2) Remove the three screws A attaching the MECHANISM CONTROL BOARD assembly. (See Fig.1.) (3) Solder the short land sections on the pickup. (See Fig.2.) Caution: Solder the short land sections on the pickup before di

48、sconnecting the flexible wire from the connector CN102 on the MECHANISM CONTROL BOARD as- sembly. If the card wire is disconnected without attaching solder, the pickup may be destroyed by static electricity. (See Fig.2.) When attaching the MECHANISM CONTROL BOARD assembly, remove the solders from th

49、e short land sections after connecting the flexible wire to the connector CN102 on the MECHANISM CONTROL BOARD assembly. Fig.1 Fig.2 A CN102 Mechanism control board A A b a c Mechanism control board CN102 Pickup Flexible wire Short land section 1-12 (No.MA445) 3.2.2Removing the top cover (See Fig.3 to 5) Remove the MECHANISM CONTROL BOARD assembly. (1) From the front side of the CD MECHANISM assembly, change the hook position of the two roller springs. (See Fig.3.) (2) From the side of the CD MECHANISM assembly, remove t