Jvc-KDBT-11-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2008 Victor Company of Japan, Limited No.MA387 2008/9 CD RECEIVER MA38720089 SERVICE MANUAL KD-BT11J, KD-BT11E, KD-BT11EX, KD-BT11EY, KD-BT11EU, KD-BT11EE, KD-BT11U, KD-BT11UT, KD-BT19UR, KD-BT12E, KD-BT12EX COPYRIGHT 2008 Victor Company of Japan, Limited Lead free solder us

2、ed 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 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

4、. . . . . . . . . . . . . . . . 1-9 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5、. . . . . . . . . . . . . . . . . . . . . 1-26 for E/EX/EY/EU/EE for EE for J/U/UT/UR for J/UR RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA387) SPECIFICATION J / UR Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Power Output20 W RMS 4 Channels at 4 and or = 1% THD+N Si

6、gnal-to-Noise Ratio80 dBA (reference: 1 W into 4 ) Load Impedance4 (4 to 8 allowance) Tone Control RangeBass12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Mid-range12 dB (500 Hz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Treble12 dB (10.0 kHz 12.5 kHz 15.0 kHz 17.5 kHz) QBass: Q1.0, Q1.25, Q 1.5, Q2.0 Mid-range: Q0.5, Q0.75

7、, Q1.0, Q1.25 Frequency Response40 Hz to 20 000 Hz 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 TerminalCD changer jack AUX (auxiliary) input jack Antenna input TUNER SECTION Frequency RangeFMwith channel in

8、terval set to 100 kHz or 200 kHz: 87.5 MHz to 107.9 MHz with channel interval set to 50 kHz: 87.5 MHz to 108.0 MHz AMwith channel interval set to 10 kHz: 530 kHz to 1 710 kHz with channel interval set to 9 kHz: 531 kHz to 1 602 kHz FM TunerUsable Sensitivity11.3 dBf (1.0 V/75 ) 50 dB Quieting Sensit

9、ivity16.3 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 optical pickup (semiconductor laser) Number of Chan

10、nels2 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 FormatMax. Bit Rate: 192 kbps BLUETOOTH VersionBlu

11、etooth 1.2 certified Power ClassClass 2 Radio (possible distance 10 m) Service Area10 m ProfileHFP 1.5, OPP 1.1, A2DP 1.2, AVRCP 1.3 GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Operating Temperature0C to +40C (32F to 104F) Di

12、mensions (W H D) (approx.) Installation Size182 mm 52 mm 160 mm (7-3/16” 2-1/16” 6-5/16”) Panel Size188 mm 58 mm 6 mm (7-7/16” 2-5/16” 1/4”) Mass1.3 kg (2.9 lbs) (excluding accessories) RadioFans.CN 收音机爱 好者资料库 (No.MA387)1-3 E/EX/EY/EU Design and specifications are subject to change without notice. A

13、UDIO 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 (4 to 8 allowance) Tone Control RangeBass12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Mid

14、-range12 dB (500 Hz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Treble12 dB (10.0 kHz 12.5 kHz 15.0 kHz 17.5 kHz) QBass: Q1.0, Q1.25, Q 1.5, Q2.0 Mid-range: Q0.5, Q0.75, Q1.0, Q1.25 Frequency Response40 Hz to 20 000 Hz Signal-to-Noise Ratio80 dB Line-Out/Subwoofer-Out Level/Impedance2.5 V /20 k load (full scale) Ou

15、tput Impedance1 k Other TerminalCD changer jack Steering wheel remote input AUX (auxiliary) input jack Aerial input TUNER SECTION Frequency RangeFM87.5 MHz to 108.0 MHz AMMW: 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

16、 (1.8 V/75 ) Alternate Channel Selectivity (400 kHz)65 dB Frequency Response40 Hz to 15 000 Hz Stereo Separation30 dB MW TunerSensitivity/Selectivity20 V/35 dB LW TunerSensitivity50 V CD PLAYER SECTION TypeCompact disc player Signal Detection SystemNon-contact optical pickup (semiconductor laser) Nu

17、mber 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 FormatMax. Bit Rate: 192 kbps BLUETOOT

18、H VersionBluetooth 1.2 certified Power ClassClass 2 Radio (possible distance 10 m) Service Area10 m ProfileHFP 1.5, OPP 1.1, A2DP 1.2, AVRCP 1.3 GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Operating Temperature0C to +40C Dime

19、nsions (W H D) (approx.) Installation Size182 mm 52 mm 160 mm Panel Size188 mm 58 mm 13 mm Mass1.3 kg (excluding accessories) RadioFans.CN 收音机爱 好者资料库 1-4 (No.MA387) EE Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront/Rear50 W per chann

20、el 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 (4 to 8 allowance) Tone Control RangeBass12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Mid-range12 dB (500 Hz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Treble12 dB (10.0 k

21、Hz 12.5 kHz 15.0 kHz 17.5 kHz) QBass: Q1.0, Q1.25, Q 1.5, Q2.0 Mid-range: Q0.5, Q0.75, Q1.0, Q1.25 Frequency Response40 Hz to 20 000 Hz Signal-to-Noise Ratio80 dB Line-Out/Subwoofer-Out Level/Impedance2.5 V /20 k load (full scale) Output Impedance1 k Other TerminalAUX (auxiliary) input jack, Aerial

22、input TUNER SECTION Frequency RangeFM1/FM287.5 MHz to 108.0 MHz FM365.00 MHz to 74.00 MHZ AMMW: 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

23、Hz to 15 000 Hz Stereo Separation30 dB MW TunerSensitivity/Selectivity20 V/35 dB LW TunerSensitivity:50 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 Dynami

24、c 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 FormatMax. Bit Rate: 192 kbps BLUETOOTH VersionBluetooth 1.2 certified Power ClassClass 2 Radio (possible distance 1

25、0 m) Service Area10 m ProfileHFP 1.5, OPP 1.1, A2DP 1.2, AVRCP 1.3 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 mm

26、 58 mm 13 mm Mass1.3 kg (excluding accessories) (No.MA387)1-5 U/UT Design and specifications are subject to change without notice. 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 th

27、an 0.8% total harmonic distortion. Load Impedance4 (4 to 8 allowance) Tone Control RangeBass12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Mid-range12 dB (500 Hz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Treble12 dB (10.0 kHz 12.5 kHz 15.0 kHz 17.5 kHz) QBass: Q1.0, Q1.25, Q 1.5, Q2.0 Mid-range: Q0.5, Q0.75, Q1.0, Q1.25 Fr

28、equency Response40 Hz to 20 000 Hz Signal-to-Noise Ratio80 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 TerminalCD changer jack AUX (auxiliary) input jack Antenna input TUNER SECTION Frequency RangeFM87.5

29、 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 Selectivity (400 kHz)65 dB Frequency Response40 Hz to 15 000 Hz Stereo Separation35 dB AM TunerSensitivity20 V Selectivity35 dB CD PLAYER SECTION T

30、ypeCompact 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)

31、Max. Bit Rate: 320 kbps WMA (Windows Media Audio) Decoding FormatMax. Bit Rate: 192 kbps BLUETOOTH VersionBluetooth 1.2 certified Power ClassClass 2 Radio (possible distance 10 m) Service Area10 m ProfileHFP 1.5, OPP 1.1, A2DP 1.2, AVRCP 1.3 GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V

32、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 mm 58 mm 6 mm Mass1.3 kg (excluding accessories) 1-6 (No.MA387) SECTION 1 PRECAUTION 1.1Safety Precautions ! Burrs formed durin

33、g 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 or operation check. (No.MA387)1-7 1.2Preventing static electr

34、icity 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 when performing repairs. 1.2.1 Grounding to prevent damage by static electricity Stat

35、ic 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. (1) Ground the workbench Ground the workbench by laying conductive material (such as a conductive sheet) o

36、r 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 pickup In order to maintain quality during transport and before installation, both sid

37、es 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 diode in the optical pickup. The testers internal power source can easily destroy

38、 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 cable using nippers, etc. after replacing the optical pickup. For specific details

39、, 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 carefully as it may break when subjected to strong force. (4) It is not possible to

40、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. Apply solder to the short land before the card wire is disconnected from the connector on the pickup unit. (

41、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 card wire. 1M (caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate Wires

42、Push switch Pickup Base board Pickup Connector Flexible wire Frame CD mechanism assembly 1-8 (No.MA387) 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) Visible and/or invisi

43、ble class 1M laser radiation when open. Do not view directly with optical instruments. 3.CAUTION : Visible and/or invisible laser 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

44、equipped with safety switches which prevent 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, adju

45、stments or performance of procedures other than those specified here in may result in hazardous radiation exposure. REPRODUCTION 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

46、(No.MA387)1-9 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY 3.1Main body 3.1.1Removing the FRONT CHASSIS assembly (See Fig.1) (1) Disengage the four hooks a engaged the both side of the FRONT CHASSIS assembly. Fig.1

47、 3.1.2Removing the HEAT SINK (See Fig.2, 3) (1) Remove the three screws A and the two screws B attaching the HEAT SINK. (See Fig.2) (2) Remove the two screws C and the one screw D attaching the HEAT SINK. (See Fig.3) Fig.2 Fig.3 hook a A B C D 1-10 (No.MA387) 3.1.3Removing the BOTTOM COVER (See Fig.

48、4) (1) Remove the one screw E attaching the BOTTOM COVER. (2) Slide the BOTTOM COVER to backward. Fig.4 3.1.4Removing the MAIN BOARD assembly (See Fig.5, 6) (1) Remove the two screws F and the one screw G attaching the MAIN BOARD assembly. (See Fig.5) (2) Remove the two screws H attaching the MAIN B

49、OARD assembly. (See Fig.6) (3) Disconnect the connector CN501 connected to MAIN BOARD assembly and CD MECHANISM assembly. (See Fig.6) Fig.5 Fig.6 E FG H CN501 (No.MA387)1-11 3.1.5Removing the CD MECHANISM assembly (See Fig.7) (1) Remove the three screws J attaching the CD MECHANISM assembly. Fig.7 3.1.6Removing the SWITCH BOARD assembly (See Fig.8) (1) Remove the VOLUME KNOB. (2) Remove the four screws K attaching the REAR COVER. (3) Disengage the nine hooks b engaged the REAR COVER. Fig.8 J J hook b hook