Jvc-KDAVX-1-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2005 Victor Company of Japan, Limited No.MA165 2005/5 DVD/CD RECEIVER MA16520055 KD-AVX1 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS 1PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . .

4、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38 Area suffix J - Northern America E - Southern Europe A - Australia UT - Taiwan UN - Indonesia U - Other Areas SOURCEMENU BACKBAND OK KD-AVX1 DISP D T/P RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA165) SPECIFICATION for

5、 NORTHERN AMERICA version 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) Equalizer Control RangeFrequencies60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz Level10 dB Line-In

6、 Level/Impedance1.5 V/20 k load Line-Out Level/Impedance5.0 V/20 k load (full scale) Output Impedance1 k Subwoofer-Out Level/Impedance2.0 V/20 k load (full scale) Color SystemNTSC Video Input (composite)1 Vp-p/75 Video Output (composite)1 Vp-p/75 Other Terminals2nd AUDIO OUT, DIGITAL OUT (optical),

7、CD changer, Steering wheel re- mote input (OE REMOTE) TUNER SECTION Frequency RangeFM87.5 MHz to 107.9 MHz (with channel interval set to 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 channe

8、l interval set to 9 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 Capture Ratio1.5 dB AM TunerSensitivity20 V Selectivity35 dB DVD/CD PLAYER

9、SECTION Signal Detection SystemNon-contact optical pickup (semiconductor laser) Number of Channels2 channels (stereo) Frequency ResponseDVD fs=48 kHz16 Hz to 22 000 Hz DVD fs=96 kHz16 Hz to 44 000 Hz VCD, CD, MP3, WMA16 Hz to 20 000 Hz Dynamic Range93 dB Signal-to-Noise Ratio95 dB Wow and FlutterLes

10、s than measurable limit MP3Max. Bit Rate320 kbps WMA (Windows Media Audio) Max. Bit Rate192 kbps MONITOR SECTION Screen3-inch liquid crystal panel Number of Pixels123 200 pixels Drive MethodTFT (Thin Film Transistor) active matrix format Color systemNTSC GENERAL Power RequirementOperating VoltageDC

11、14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Operating Temperature0 C to +40 C (32 F to 104 F) Dimensions (W H D)Installation Size (approx.)182 mm 52 mm 160 mm (7-3/16 2-1/16 6-5/16) Panel Size (approx.)188 mm 58 mm 18 mm (7-7/16 2-5/16 3/4) Mass (approx.)2.0 kg (4.5 lbs

12、) (excluding accessories) RadioFans.CN 收音机爱 好者资料库 (No.MA165)1-3 for EUROPE version AUDIO AMPLIFIER SECTION Maximum Power OutputFront50 W per channel Rear50 W per channel Continuous Power Output (RMS) Front20 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Re

13、ar20 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) Equalizer Control RangeFrequencies60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz Level10 dB Signal-to-Noise Ratio70 dB Line-In Level/Impedance1.5 V/20 k load Line

14、-Out Level/Impedance5.0 V/20 k load (full scale) Output Impedance1 k Subwoofer-Out Level/Impedance2.0 V/20 k load (full scale) Color SystemPAL Video Input (composite)1 Vp-p/75 Video Output (composite)1 Vp-p/75 Other Terminals2nd AUDIO OUT, DIGITAL OUT (optical), CD changer, Steering wheel re- mote i

15、nput (OE REMOTE) 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 Sensitivity16.3 dBf (1.8 V/75 ) Alternate Channel Selectivity (400 kHz) 65 dB Frequency Response40 Hz to 15 000 Hz S

16、tereo Separation35 dB Capture Ratio1.5 dB MW TunerSensitivity20 V Selectivity35 dB LW TunerSensitivity50 V DVD/CD PLAYER SECTION Signal Detection SystemNon-contact optical pickup (semiconductor laser) Number of Channels2 channels (stereo) Frequency ResponseDVD fs=48 kHz16 Hz to 22 000 Hz DVD fs=96 k

17、Hz16 Hz to 44 000 Hz VCD, CD16 Hz to 20 000 Hz Dynamic Range93 dB Signal-to-Noise Ratio95 dB Wow and FlutterLess than measurable limit MP3Max. Bit Rate320 kbps WMA (Windows Media Audio)Max. Bit Rate192 kbps MONITOR SECTION Screen3-inch liquid crystal panel Number of Pixels123 200 pixels Drive Method

18、TFT (Thin Film Transistor) active matrix format Color SystemPAL 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)Installation Size (approx.)182 mm 52 mm 160 mm Panel Size (approx.)

19、188 mm 58 mm 18 mm Mass (approx.)2.0 kg (excluding accessories) RadioFans.CN 收音机爱 好者资料库 1-4 (No.MA165) for ASIA & AUSTRALIA version Design and specifications are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power OutputFront50 W per channel Rear50 W per channel Continuous Power

20、Output (RMS) Front20 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Rear20 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) Equalizer Control RangeFrequencies60 Hz, 150 Hz, 400 Hz,

21、1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz Level10 dB Signal-to-Noise Ratio70 dB Line-In Level/Impedance1.5 V/20 k load Line-Out Level/Impedance5.0 V/20 k load (full scale) Output Impedance1 k Subwoofer-Out Level/Impedance2.0 V/20 k load (full scale) Color SystemNTSC/PAL Video Input (composite)1 Vp-p/75 Video

22、Output (composite)1 Vp-p/75 Other Terminals2nd AUDIO OUT, DIGITAL OUT (optical), CD changer 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 Selectivity (400 kHz

23、) 65 dB Frequency Response40 Hz to 15 000 Hz Stereo Separation35 dB Capture Ratio1.5 dB AM TunerSensitivity20 V Selectivity35 dB DVD/CD PLAYER SECTION Signal Detection SystemNon-contact optical pickup (semiconductor laser) Number of Channels2 channels (stereo) Frequency ResponseDVD fs=48 kHz16 Hz to

24、 22 000 Hz DVD fs=96 kHz16 Hz to 44 000 Hz VCD, CD16 Hz to 20 000 Hz Dynamic Range93 dB Signal-to-Noise Ratio95 dB Wow and FlutterLess than measurable limit MP3Max. Bit Rate: 320 kbps WMA (Windows Media Audio)Max. Bit Rate192 kbps MONITOR SECTION Screen3-inch liquid crystal panel Number of Pixels123

25、 200 pixels Drive MethodTFT (Thin Film Transistor) active matrix format Color systemNTSC/PAL 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)Installation Size (approx.)182 mm 52 m

26、m 160 mm Panel Size (approx.)188 mm 58 mm 18 mm Mass (approx.)2.0 kg (excluding accessories) (No.MA165)1-5 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

27、of this system. ! Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check. 1-6 (No.MA165) 1.2Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can de

28、stroy 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 pickup (laser diode) in devices such as CD players. Be careful to use pr

29、oper 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 unit (optical pickup) on it. (2) Ground yourself Use an anti-static wrist strap

30、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 are shorted. After replacement, return the shorted parts to their original c

31、ondition. (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 (optical pickup) (1) Before disconnecting the flexible wire from the connector CN101

32、 on the mechanism control board, solder the short-circuit points on the flexible wire. Caution: If you do not follow this instruction, the DVD pickup may be damaged. (2) Disconnect the flexible wire from the connector CN101 on the mechanism control board. (3) Remove the solders from the short-circui

33、t points on the flexible wire after replacing the DVD pickup. (4) Connect the flexible wire to the connector CN101 on the mechanism control board. 1M (caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate Mechanism control board CN101 Flexible wire Short-circuit point

34、s (No.MA165)1-7 1.4Important for laser products 1.CLASS 1 LASER PRODUCT 2.DANGER : Invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. 3.CAUTION : There are no serviceable parts inside the Laser Unit. Do not disassemble the Laser Unit. Replace the co

35、mplete Laser Unit if it malfunctions. 4.CAUTION : The CD,MD and DVD player uses 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 or are defeated. It is dangerous to defeat the safety switc

36、hes. 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. REPRODUCTION AND POSITION OF LABELS ! Please use enough caution not to

37、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 and interlock failed or defeated. AVOID DIRECT EXPOSURE TO BEAM. (e) VARNING : Synlig och osynling laserstrlning nr den ppnas och sprren r urkopplad.

38、 Betrakta ej strlen. (s) VARO : Avattaessa ja suojalukitus ohitettuna tai viallisena olet alttiina nkyvlle ja nkymttmlle lasersteilylle. Vlt steen kohdistumista suoraan itseesi. (f) ADVARSEL : Synlig og usynlig laserstrling nr maskinen er ben eller interlocken fejeler. Undg direkte eksponering til s

39、trling. (d) CLASS 1 LASER PRODUCT 1-8 (No.MA165) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.MA165)1-9 SECTION 3 DISASSEMBLY 3.1Main body section 3.1.1Removing the panel assembly (See Fig.1) (1) Push the button(detach) in the lower

40、 right part of the panel assembly. (2) Remove the panel assembly. Fig.1 3.1.2Removing the side heat sink (See Fig.2) Reference: Remove the panel assembly as required. (1) From the left side of the main body, remove the two screws A and three screws B attaching the side heat sink. (2) Remove the side

41、 heat sink from the main body. Fig.2 Panel assembly Button(detach) Side heat sink A B B 1-10 (No.MA165) 3.1.3Removing the top chassis assembly (See Figs.3 to 6) Remove the panel assembly and side heat sink. (1) From the top side of the main body, remove the two screws C attaching the top chassis ass

42、embly. (See Fig.3.) (2) From the back side of the main body, remove the two screws C attaching the top chassis assembly. (See Fig.4.) (3) From the both sides of the main body, remove the two screws C and screw D attaching the top chassis assembly. (See Figs.5 and 6.) (4) Lift the top chassis assembl

43、y in the direction of the arrow and disconnect the connector CN966 on the main sub board from the connector CN961 on the main board. (See Fig.6.) (5) Take out the top chassis assembly from the main body. Fig.3 Fig.4 Fig.5 Fig.6 Top chassis assembly CC Top chassis assembly C Top chassis assembly CD T

44、op chassis assembly C Main sub board CN966 CN961 Main board (No.MA165)1-11 3.1.4Removing the front chassis assembly (See Fig.7) Remove the panel assembly, side heat sink and top chassis assembly. (1) From the both sides of the top chassis assembly, remove the two screws E attaching the front chassis

45、 assembly. (2) Remove the front chassis assembly from the top chassis assembly. Fig.7 3.1.5Removing the DVD mechanism assembly (See Figs.8 and 9) Remove the panel assembly, side heat sink and top chassis assembly. Reference: Remove the front chassis assembly as required. (1) From the inside of the t

46、op chassis assembly, remove the three screws F attaching the DVD mechanism assembly and take out the DVD mechanism assembly. (See Fig.8.) (2) From the side of the DVD mechanism assembly, remove the double-stick tape fixing the insulator. (See Fig.9.) (3) From the top side of the DVD mechanism assemb

47、ly, re- move the spacer attaching the insulator. (See Fig.9.) (4) Remove the insulator from the top chassis assembly. Reference: When the resolution of DVD mechanism assembly is done se- quentially, remove the main sub board. (See next Fig.10.) Fig.8 Fig.9 Front chassis assembly EE Top chassis assem

48、bly F F DVD mechanism assembly F Top chassis assembly Insulator Spacer Double-stick tape Double-stick tape 1-12 (No.MA165) 3.1.6Removing the main sub board (See Fig.10) Remove the panel assembly, side heat sink, top chassis as- sembly and DVD mechanism assembly. (1) From the top side of the DVD mech

49、anism assembly, re- lease the lock of the connector CN965 on the main sub board and disconnect the card wire. (2) Remove the two screws G attaching the main sub board on the DVD mechanism assembly and remove the main sub board. Reference: When attaching the main sub board, align the projections a in the holes of the main sub board before attaching the screws G. Fig.10 3.1.7Remo