Jvc-KWAVX-626-UT-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.MA443 2009/4 DVD RECEIVER WITH MONITOR MA44320094 SERVICE MANUAL KW-ADV792J, KW-AVX624UI, KW-AVX625U, KW-AVX625UT, KW-AVX625EU, KW-AVX626U, KW-AVX626UT, KW-AVX626EU, KW-AVX626A, KW-AVX720J, KW-AVX720E, KW-AVX720EE, KW-AVX724UI, KW-AVX

2、725U, KW-AVX725UN, KW-AVX725UT, KW-AVX725EU, KW-AVX726U, KW-AVX726UN, KW-AVX726UT, KW-AVX726EU, KW-AVX726A, KW-AVX728UF COPYRIGHT 2009 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (materia

3、l : Sn-Cu, melting point : 230 Centigrade) TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . .

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

5、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 except KW-AVX626/KW-AVX625/KW-AVX624only KW-AVX726/KW-AVX725 E,EE on

6、ly KW-ADV792/KW-AVX720J RadioFans.CN 收音机爱 好者资料库 1-2 (No.MA443) SPECIFICATION KW-ADV792/KW-AVX720J Design and specifications are subject to change without notice. AMPLIFIER 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 t

7、o 8 allowance) Equalizer Control RangeFrequencies60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz Level10 dB Audio Output Level LINE OUT (REAR) and SUBWOOFER Line-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Color SystemNTSC Video Output (composite)1 Vp-p/75 Other Termin

8、alsInputLINE IN, VIDEO IN, Antenna input, USB input, Steering wheel remote input OutputVIDEO OUT OthersCD changer, DIGITAL OUT (optical) TUNER SECTION Frequency RangeFMwith channel interval set to 100 kHz or 200 kHz87.5 MHz to 107.9 MHz with channel interval set to 50 kHz87.5 MHz to 108.0 MHz AMwith

9、 channel interval set to 10 kHz530 kHz to 1 710 kHz with channel interval set to 9 kHz531 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 Separation4

10、0 dB AM TunerSensitivity20 V Selectivity40 dB DVD/CD Signal Detection SystemNon-contact optical pickup (semiconductor laser) Frequency ResponseDVD, fs=48 kHz/96 kHz16 Hz to 22 000 Hz VCD/CD16 Hz to 20 000 Hz Dynamic Range96 dB Signal-to-Noise Ratio98 dB Wow and FlutterLess than measurable limit USB

11、USB StandardsUSB 2.0 Full Speed Data Transfer RateFull SpeedMaximum 12 Mbps Low SpeedMaximum 1.5 Mbps Compatible DeviceMass storage class Compatible File SystemFAT 32/16/12 Max. CurrentDC 5 V 500 mA MONITOR Screen Size7 inch wide liquid crystal display Number of Pixel336 960 pixels: 480 3 (horizonta

12、l) 234 (vertical) Drive MethodTFT (Thin Film Transistor) active matrix format Color SystemNTSC/PAL Aspect Ratio16:9 (wide) GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Storage Temperature-10C to +60C (14F to 140F) Allowable Op

13、erating Temperature0C to +40C (32F to 104F) Dimensions (W H D) With trim plate and sleeve attached Installation Size (approx.)182 mm 111 mm 161 mm (7-3/16” 4-3/8” 6-3/8”) Panel Size (approx.)188 mm 117 mm 22 mm (7-7/16” 4-5/8” 7/8”) Mass (approx.)3.3 kg (7.3 lbs) (including trim plate and sleeve) Ra

14、dioFans.CN 收音机爱 好者资料库 (No.MA443)1-3 KW-AVX720E Design and specifications are subject to change without notice. AMPLIFIER Maximum Power OutputFront/Rear50 W per channel Continuous Power Output (RMS)Front/Rear20 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 1.0% total harmonic distortion L

15、oad 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 Audio Output Level LINE OUT (REAR) and SUBWOOFER Line-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Color SystemPAL V

16、ideo Output (composite)1 Vp-p/75 Other TerminalsInputLINE IN, VIDEO IN, Aerial input, USB input, Steering wheel remote input OutputVIDEO OUT OthersCD changer, DIGITAL OUT (optical) FM/AM TUNER Frequency RangeFM87.5 MHz to 108.0 MHz AM(MW) 522 kHz to 1 620 kHz (LW) 144 kHz to 279 kHz FM TunerUsable S

17、ensitivity9.3 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 TunerSensitivity/Selectivity20 V/40 dB LW TunerSensitivity50 V DVD/CD Signal Detection SystemNon-contact optical pi

18、ckup (semiconductor laser) Frequency ResponseDVD, fs=48 kHz/96 kHz16 Hz to 22 000 Hz VCD/CD16 Hz to 20 000 Hz Dynamic Range96 dB Signal-to-Noise Ratio98 dB Wow and FlutterLess than measurable limit USB USB StandardsUSB 2.0 Full Speed Data Transfer RateFull SpeedMaximum 12 Mbps Low SpeedMaximum 1.5 M

19、bps Compatible DeviceMass storage class Compatible File SystemFAT 32/16/12 Max. CurrentDC 5 V 500 mA MONITOR Screen Size7 inch wide liquid crystal display Number of Pixel336 960 pixels: 480 3 (horizontal) 234 (vertical) Drive MethodTFT (Thin Film Transistor) active matrix format Color SystemNTSC/PAL

20、 Aspect Ratio16:9 (wide) GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Storage Temperature-10C to +60C Allowable Operating Temperature0C to +40C Dimensions (W H D) With trim plate and sleeve attached Installation Size (approx.)

21、182 mm 111 mm 161 mm Panel Size (approx.)188 mm 117 mm 22 mm Mass (approx.)3.3 kg (including trim plate and sleeve) RadioFans.CN 收音机爱 好者资料库 1-4 (No.MA443) KW-AVX720EE Design and specifications are subject to change without notice. AMPLIFIER Maximum Power OutputFront/Rear50 W per channel Continuous P

22、ower Output (RMS)Front/Rear20 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 1.0% 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 Audio Output Level

23、LINE OUT (REAR) and SUBWOOFER Line-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Color SystemPAL Video Output (composite)1 Vp-p/75 Other TerminalsInputLINE IN, VIDEO IN, Aerial input, USB input, Steering wheel remote input OutputVIDEO OUT OthersCD changer, DIGITAL OUT (optical)

24、 FM/AM TUNER Frequency RangeFM1/FM287.5 MHz to 108.0 MHz FM365.0 MHz to 74.0 MHz AM(MW) 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

25、 000 Hz Stereo Separation40 dB MW TunerSensitivity/Selectivity20 V/40 dB LW TunerSensitivity50 V DVD/CD Signal Detection SystemNon-contact optical pickup (semiconductor laser) Frequency ResponseDVD, fs=48 kHz/96 kHz16 Hz to 22 000 Hz VCD/CD16 Hz to 20 000 Hz Dynamic Range96 dB Signal-to-Noise Ratio9

26、8 dB Wow and FlutterLess than measurable limit USB USB StandardsUSB 2.0 Full Speed Data Transfer RatFull SpeedMaximum 12 Mbps Low SpeedMaximum 1.5 Mbps Compatible DeviceMass storage class Compatible File SystemFAT 32/16/12 Max. CurrentDC 5 V 500 mA MONITOR Screen Size7 inch wide liquid crystal displ

27、ay Number of Pixel336 960 pixels: 480 3 (horizontal) 234 (vertical) Drive MethodTFT (Thin Film Transistor) active matrix format Color SystemNTSC/PAL Aspect Ratio16:9 (wide) GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Storage

28、Temperature-10C to +60C Allowable Operating Temperature0C to +40C Dimensions (W H D) With trim plate and sleeve attached Installation Size (approx.)182 mm 111 mm 161 mm Panel Size (approx.)188 mm 117 mm 22 mm Mass (approx.)3.3 kg (including trim plate and sleeve) (No.MA443)1-5 KW-AVX726/KW-AVX725/KW

29、-AVX626/KW-AVX625EU Design and specifications are subject to change without notice. AMPLIFIER Maximum Power OutputFront/Rear50 W per channel Continuous Power Output (RMS)Front/Rear20 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 1.0% total harmonic distortion Load Impedance4 (4 to 8 allo

30、wance) 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 Audio Output LevelLINE OUT (REAR) and SUBWOOFER (for KW-AVX726/KW-AVX725) Line-Out Level/Impedance2.5 V/20 k load (full scale) Output Impedance1 k Color SystemKW-AVX7

31、26/KW-AVX725NTSC/PAL KW-AVX626/KW-AVX625PAL Video Output (composite)1 Vp-p/75 Other TerminalsInputLINE IN, VIDEO IN, Aerial input USB input (for KW-AVX726/KW-AVX725) OutputVIDEO OUT OthersCD changer, DIGITAL OUT (optical), POSITION OUT FM/AM TUNER Frequency RangeFM87.5 MHz to 108.0 MHz AMKW-AVX726/K

32、W-AVX725(MW) 522 kHz to 1 620 kHz (LW) 144 kHz to 279 kHz KW-AVX626/KW-AVX625531 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/M

33、W TunerSensitivity/Selectivity20 V/40 dB LW TunerSensitivity50 V DVD/CD Signal Detection SystemNon-contact optical pickup (semiconductor laser) Frequency ResponseDVD, fs=48 kHz/96 kHz16 Hz to 22 000 Hz VCD/CD16 Hz to 20 000 Hz Dynamic Range96 dB Signal-to-Noise Ratio98 dB Wow and FlutterLess than me

34、asurable limit USB (for KW-AVX726/KW AVX725) USB StandardsUSB 2.0 Full Speed Data Transfer RatFull SpeedMaximum 12 Mbps Low SpeedMaximum 1.5 Mbps Compatible DeviceMass storage class Compatible File SystemFAT 32/16/12 Max. CurrentDC 5 V 500 mA MONITOR Screen Size7 inch wide liquid crystal display Num

35、ber of Pixel336 960 pixels: 480 3 (horizontal) 234 (vertical) Drive MethodTFT (Thin Film Transistor) active matrix format Color SystemNTSC/PAL Aspect Ratio16:9 (wide) GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Storage Temper

36、ature-10C to +60C Allowable Operating Temperature0C to +40C Dimensions (W H D) With trim plate and sleeve attached Installation Size (approx.)182 mm 111 mm 161 mm Panel Size (approx.)188 mm 117 mm 22 mm Mass (approx.)3.3 kg (including trim plate and sleeve) 1-6 (No.MA443) KW-AVX726/KW-AVX725/KW-AVX7

37、24/KW-AVX626/KW-AVX625/KW-AVX624 U/UN/UT/A/UI Design and specifications are subject to change without notice. AMPLIFIER Maximum Power OutputFront/Rear50 W per channel Continuous Power Output (RMS)Front/Rear20 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 1.0% total harmonic distortion Lo

38、ad 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 Audio Output Level LINE OUT (REAR) and SUBWOOFER (for KW-AVX726/KW-AVX725/KW-AVX724) Line-Out Level/Impedance2.5 V/20 k load (full scale) Ou

39、tput Impedance1 k Color SystemNTSC/PAL Video Output (composite)1 Vp-p/75 Other TerminalsInputLINE IN, VIDEO IN, Antenna input USB input (for KW-AVX726/KW-AVX725/KW-AVX724) OutputVIDEO OUT OthersCD changer, DIGITAL OUT (optical), POSITION OUT FM/AM TUNER Frequency RangeFM87.5 MHz to 108.0 MHz AM531 k

40、Hz 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 TunerSensitivity/Selectivity20 V/40 dB DVD/CD Signal Detection SystemNon-contact op

41、tical pickup (semiconductor laser) Frequency ResponseDVD, fs=48 kHz/96 kHz16 Hz to 22 000 Hz VCD/CD16 Hz to 22 000 Hz Dynamic Range96 dB Signal-to-Noise Ratio98 dB Wow and FlutterLess than measurable limit USB (for KW-AVX726/KW-AVX725/KW-AVX724) USB StandardsUSB 2.0 Full Speed Data Transfer RateFull

42、 SpeedMaximum 12 Mbps Low SpeedMaximum 1.5 Mbps Compatible DeviceMass storage class Compatible File SystemFAT 32/16/12 Max. CurrentDC 5 V 500 mA MONITOR Screen Size7 inch wide liquid crystal display Number of Pixel336 960 pixels: 480 3 (horizontal) 234 (vertical) Drive MethodTFT (Thin Film Transisto

43、r) active matrix format Color SystemNTSC/PAL Aspect Ratio16:9 (wide) GENERAL Power RequirementOperating VoltageDC 14.4 V (11 V to 16 V allowance) Grounding SystemNegative ground Allowable Storage Temperature-10C to +60C Allowable Operating Temperature0C to +40C Dimensions (W H D)Installation Size (a

44、pprox.)178 mm 100 mm 160 mm Panel Size (approx.)184 mm 112 mm 23 mm Mass (approx.)2.7 kg (No.MA443)1-7 SECTION 1 PRECAUTION 1.1Safety Precautions (1) This design of this product contains special hardware and many circuits and components specially for safety purpos- es. For continued protection, no c

45、hanges should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be per- formed by qualified personnel only. (2) Alterations of the design or circuitry of the product should not

46、be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts

47、in the products have special safety-related characteristics. These characteris- tics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by us- ing replacement components rated for higher voltage, watt- age, etc. Replacement parts which have t

48、hese special safety characteristics are identified in the Parts List of Ser- vice Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety

49、 charac- teristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. (4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned