Jvc-KWXG-708-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.MA346 2007/6 CD RECEIVER MA34620076 SERVICE MANUAL KW-XG700J, KW-XG701E, KW-XG701EX, KW-XG701EY, KW-XG701EU, KW-XG704UI, KW-XG705U, KW-XG705UN, KW-XG705UH, KW-XG706U, KW-XG706UN, KW-XG706UH, KW-XG707EE, KW-XG708UF COPYRIGHT 2007 Victo

2、r Company of Japan, Limited * Please refer to the mechanism manual (model TN2007-1010 (No.MY005 and No.MY005B) for the CD mechanism. 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 Cent

3、igrade) TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、 . . . . . . . . . . . 1-10 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5、. . . . . . . . . . . . . . . . . . . . 1-15 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 KW-XG700KW-XG700 KW-XG701 KW-XG707 RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA346) SPECIFICATION KW-XG700 Design

6、 and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Power Output20 W RMS 4 Channels at 4 and or = 1% THD+N Signal to Noise Ratio80 dBA (reference: 1 W into 4 ) Load Impedance4 (4 to 8 allowance) Tone Control RangeBass12 dB at 60 Hz Mid-range12 dB at 1 kHz Treble12 dB at

7、 10 kHz Frequency Response40 Hz to 20 000 Hz Line-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Subwoofer-Out Level/Impedance2.5 V/20 k load (full scale) Other TerminalCD changer, Steering wheel remote input, USB input terminal, Subwoofer input, AUX (auxiliary) input jack TUNER

8、 SECTION Frequency RangeFM87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz) 87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz) AM530 kHz to 1 710 kHz (with channel interval set to 10 kHz) 531 kHz to 1 602 kHz (with channel interval set to 9 kHz) FM TunerUsable Sensitiv

9、ity11.3 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 Separation35 dB AM TunerSensitivity20 V Selectivity35 dB CD PLAYER SECTION TypeCompact disc player Signal Detection SystemNon-contact optic

10、al 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 Rate: 320 kbps WMA (Windows Media Audio) Decoding For

11、matMax. Bit Rate: 192 kbps AAC (Advanced Audio Coding) Decoding FormatMax. Bit Rate: 320 kbps USB DEVICE USB StandardUSB 1.1 Data Transfer RateFull SpeedMaximum 12 Mbps Low SpeedMaximum 1.5 Mbps Compatible DeviceMass storage class, MTP Compatible File SystemFAT 32/16/12 Playable Audio FormatMP3/WMA/

12、AAC/WAV Max. CurrentLess than 500 mA GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Operating Temperature0C to +40C (32F to 104F) Dimensions (W H D) (approx.) Installation Size178 mm 100 mm 158 mm (7-1/16 3-15/16 6-1/4) Set Size

13、178 mm 100 mm 178 mm (7-1/16 3-15/16 7-1/16) Mass1.8 kg (4.0 lbs) (excluding accessories) RadioFans.CN 收音机爱 好者资料库 (No.MA346)1-3 KW-XG701 Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront and rear50 W per channel Continuous Power Output

14、(RMS) Front and 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 Lin

15、e-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Subwoofer-Out Level/Impedance2.5 V/20 k load (full scale) Other TerminalCD changer, Steering wheel remote input, USB input terminal, Subwoofer input, AUX (auxiliary) input jack TUNER SECTION Frequency RangeFM87.5 MHz to 108.0 MHz

16、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 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 TunerSensitivity20 V Selectivity35 dB LW Tune

17、rSensitivity50 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 MP3 Dec

18、oding Format: (MPEG1/2 Audio Layer 3)Max. Bit Rate: 320 kbps WMA (Windows Media Audio) Decoding FormatMax. Bit Rate: 192 kbps AAC (Advanced Audio Coding) Decoding FormatMax. Bit Rate: 320 kbps USB DEVICE USB StandardUSB 1.1 Data Transfer RateFull SpeedMaximum 12 Mbps Low SpeedMaximum 1.5 Mbps Compat

19、ible DeviceMass storage class, MTP Compatible File SystemFAT 32/16/12 Playable Audio FormatMP3/WMA/AAC/WAV Max. CurrentLess than 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

20、 H D) (approx.) Installation Size182 mm 111 mm 158 mm Set Size178 mm 100 mm 178 mm Mass2.3 kg (excluding accessories) RadioFans.CN 收音机爱 好者资料库 1-4 (No.MA346) KW-XG704 Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront and rear50 W per cha

21、nnel Continuous Power Output (RMS) Front and 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 S

22、ignal-to-Noise Ratio70 dB Line-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Subwoofer-Out Level/Impedance2.5 V/20 k load (full scale) Other TerminalCD changer, USB input terminal, Subwoofer input, AUX (auxiliary) input jack TUNER SECTION Frequency RangeFM87.5 MHz to 108.0 MHz

23、AM531 kHz to 1 602 kHz FM TunerUsable Sensitivity11.3 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 AM TunerSensitivity20 V Selectivity35 dB CD PLAYER SECTION TypeCompact disc p

24、layer Signal Detection SystemNon-contact optical pickup (semiconductor laser) Number of Channels2 channels (stereo) Frequency Response5 Hz to 20 000 Hz Dynamic Range/Signal-to-Noise Ratio96 dB/98 dB Wow and FlutterLess than measurable limit MP3 Decoding Format: (MPEG1/2 Audio Layer 3)Max. Bit Rate:

25、320 kbps WMA (Windows Media Audio) Decoding FormatMax. Bit Rate: 192 kbps USB DEVICE USB StandardUSB 1.1 Data Transfer RateFull SpeedMaximum 12 Mbps Low SpeedMaximum 1.5 Mbps Compatible DeviceMass storage class Compatible File SystemFAT 32/16/12 Playable Audio FormatMP3/WMA/WAV Max. CurrentLess than

26、 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 Size178 mm 100 mm 158 mm Set Size:178 mm 100 mm 178 mm Mass1.8 kg (excluding accessories) (No.MA346

27、)1-5 KW-XG705/KW-XG706/KW-XG708 Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront and rear50 W per channel Continuous Power Output (RMS) Front and rear19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total har- monic di

28、stortion. 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 Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Subwoofer-Out Level/Impedance2.5 V/

29、20 k load (full scale) Other TerminalCD changer, USB input terminal, Subwoofer input, AUX (auxiliary) input jack TUNER SECTION Frequency RangeFM87.5 MHz to 108.0 MHz AM531 kHz to 1 602 kHz FM TunerUsable Sensitivity11.3 dBf (1.0 V/75 ) 50 dB Quieting Sensitivity16.3 dBf (1.8 V/75 ) Alternate Channel

30、 Selectivity (400 kHz) 65 dB Frequency Response40 Hz to 15 000 Hz Stereo Separation30 dB AM TunerSensitivity20 V Selectivity35 dB CD PLAYER SECTION TypeCompact disc player Signal Detection SystemNon-contact optical pickup (semiconductor laser) Number of Channels2 channels (stereo) Frequency Response

31、5 Hz to 20 000 Hz Dynamic Range/Signal-to-Noise Ratio96 dB/98 dB Wow and FlutterLess than measurable limit MP3 Decoding Format: (MPEG1/2 Audio Layer 3)Max. Bit Rate: 320 kbps WMA (Windows Media Audio) Decoding FormatMax. Bit Rate: 192 kbps USB DEVICE USB StandardUSB 1.1 Data Transfer RateFull SpeedM

32、aximum 12 Mbps Low SpeedMaximum 1.5 Mbps Compatible DeviceMass storage class Compatible File SystemFAT 32/16/12 Playable Audio FormatMP3/WMA/WAV Max. CurrentLess than 500 mA GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Operati

33、ng Temperature0C to +40C Dimensions (W H D) (approx.) Installation Size178 mm 100 mm 158 mm Set Size178 mm 100 mm 178 mm Mass1.8 kg (excluding accessories) 1-6 (No.MA346) KW-XG707 Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront and re

34、ar50 W per channel Continuous Power Output (RMS) Front and 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

35、to 20 000 Hz Signal to Noise Ratio70 dB Line-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Subwoofer-Out Level/Impedance2.5 V/20 k load (full scale) Other TerminalCD changer, USB input terminal, Subwoofer input, AUX (auxilliary) input jack TUNER SECTION Frequency RangeFM1/FM287

36、.5 MHz to 108.0 MHz FM365.00 MHz to 74.00 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 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

37、 TunerSensitivity20 V Selectivity35 dB LW TunerSensitivity50 V CD PLAYER SECTION Type Signal Detection System Compact disc player Non-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 W

38、ow and FlutterLess than measurable limit MP3 Decoding Format: (MPEG1/2 Audio Layer 3)Max. Bit Rate: 320 kbps WMA (Windows Media Audio) Decoding FormatMax. Bit Rate: 192 kbps AAC (Advanced Audio Coding) Decoding FormatMax. Bit Rate: 320 kbps USB DEVICE USB StandardUSB 1.1 Data Transfer RateFull Speed

39、Maximum 12 Mbps Low SpeedMaximum 1.5 Mbps Compatible DeviceMass storage class, MTP Compatible File SystemFAT 32/16/12 Playable Audio FormatMP3/WMA/AAC/WAV Max. Current:Less than 500 mA GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowa

40、ble Operating Temperature0C to +40C Dimensions (W H D) (approx.) Installation Size182 mm 111 mm 158 mm Set Size178 mm 100 mm 178 mm Mass2.3 kg (excluding accessories) (No.MA346)1-7 SECTION 1 PRECAUTION 1.1Safety Precautions ! Burrs formed during molding may be left over on some parts of the chassis.

41、 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 or operation check. 1-8 (No.MA346) 1.2Preventing static electricity Electrostatic discharge (ESD), which occurs when

42、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 when performing repairs. 1.2.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical

43、 pickup (laser diode) in devices such as laser products. Be careful to use proper grounding in the area where repairs are being performed. (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 uni

44、t (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 pickup In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup

45、 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 diode in the optical pickup. The testers internal power source can easily destroy the laser diode. 1.3Handling the traverse unit (optica

46、l 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 cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remov

47、e 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 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 p

48、ower. Do not turn it. 1.4Attention when traverse unit is decomposed *Please refer to Disassembly method in the text for the pickup unit. 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 solde

49、r, the pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short land after connecting the card 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.MA346)1-9 1.5Important for laser 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) Vi