SERVICE MANUAL CD RECEIVER MA247 2006 KD-AR770J,KD-G720J,KD-G721E,KD-G721EX, KD-G721EY,KD-G721EU,KD-G722E,KD-G722EX, KD-G722EY,KD-G722EU,KD-G724UI,KD-G725U, KD-G725UN,KD-G725UH,KD-G725UT,KD-G727EE Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS PRECAUTIONS ............... 1-7 SPECIFIC SERVICE INSTRUCTIONS .
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SPECIFICATION KD-AR770/KD-G720 AUDIO AMPLIFIER SECTION × Ω Power Output 20 W RMS 4 Channels at 4 and [< or =] 1% THD+N Ω Signal to Noise Ratio 80 dBA (reference: 1 W into 4 Ω Ω Ω Load Impedance to 8 allowance) Tone Control Range Bass...
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KD-G722/KD-G721 AUDIO AMPLIFIER SECTION Maximum Power Output Front 50 W per channel Rear 50 W per channel Ω Continuous Power Output (RMS) Front 19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion.
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KD-G724 AUDIO AMPLIFIER SECTION Maximum Power Output Front 50 W per channel Rear 50 W per channel Ω Continuous Power Output (RMS) Front 19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion.
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KD-G725 AUDIO AMPLIFIER SECTION Maximum Power Output Front 50 W per channel Rear 50 W per channel Ω Continuous Power Output (RMS) Front 19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion.
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KD-G727 AUDIO AMPLIFIER SECTION Maximum Power Output Front 50 W per channel Rear 50 W per channel Ω Continuous Power Output (RMS) Front 19 W per channel into 4 , 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion.
SECTION 1 PRECAUTIONS Safety 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 caution not to see the beam directly or touch it in case of an adjustment or operation check.
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Preventing 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). 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 laser products.
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Important for laser products 5.CAUTION : If safety switches malfunction, the laser is able 1.CLASS 1 LASER PRODUCT to function. 2.DANGER : Invisible laser radiation when open and inter 6.CAUTION : Use of controls, adjustments or performance of lock failed or defeated. Avoid direct exposure to beam. procedures other than those specified here in may result in 3.CAUTION : There are no serviceable parts inside the hazardous radiation exposure.
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS DIFFERENT POINT KD-AR770 KD-G720 KD-G721 KD-G722 KD-G724 KD-G725 KD-G727 SAT READY LINE IN plug 1-10 (No.MA247)
SECTION 3 DISASSEMBLY Main body section 3.1.1 Removing the front panel assembly (See Fig.1) (1) Push the detach button in the lower left part of the front Front panel assembly panel assembly and remove the front panel assembly. Detach button Fig.1 3.1.2 Removing the bottom cover (See Fig.2)
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3.1.4 Removing the side panel (See Fig.5) Reference: Remove the front panel assembly as required. (1) Remove the two screws C and three screws D attaching the side panel on the left side of the main body. (2) Remove the side panel from the main body. Side panel Fig.5 3.1.5 Removing the rear bracket...
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3.1.6 Removing the main board (See Figs.6 and 7) • Remove the front panel assembly, bottom cover and side pan- Reference: CN501 USB board Remove the front chassis assembly as required. (1) Remove the screws E attaching the rear bracket on the back side of the main body.
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3.1.8 Removing the switch board (See Figs.9 to 11) • Remove the front panel assembly. (1) Remove the five screws K on the back side of the front pan- Rear cover el assembly. (See Fig.9.) (2) Remove the screw M on the right side of the front panel as- sembly.
(3) Digital tester Output Level Line out 2.5V (Vol. MAX) (4) Tracking offset meter (5) Test Disc JVC :CTS-1000 Dummy load (6) Extension cable for check Exclusive dummy load should be used for AM,and FM. For FM EXTSH002-22P × 1...
SECTION 5 TROUBLESHOOTING Feed section Is 4V present at both Check the feed motor. sides of the feed motor? Check the connections Is the voltage output at between the feed motor pin 4 and pin 5 of IC501? and IC501. Is the power supply Is the voltage input at pin Check IC501.
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Spindle section Does the RF signal appear Is the RF waveform at Is the disk rotated? at pin 83 of IC541? pin 83 of IC541 distorted? Is the voltage output at Check the spindle motor Check the circuits in Proceed to the Tracking pin 6 and pin 7 of IC501? and its wiring.
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Signal processing section Is the sound output from Normal both channels (L, R)? Is the audio signal (including sampling Is the audio signal output No sound from either Is 9V present at pin 24 output components) at pin 18 and pin 19 of channel.
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16 PIN CORD DIAGRAM (for KD-AR770) OR/WH Black Green BL/WH Violet Blue Gray WH/BK White Yellow GN/BK Brown Orange VI/BK GY/BK MEMORY 16 YL 8 BK 7 RD 15 OR/WH 13 BR REMOTE 5 BL/WH 3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH 12 WH/BK...
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16 PIN CORD DIAGRAM (for KD-G720) OR/WH Black Green BL/WH Violet Blue Gray WH/BK White Yellow GN/BK Orange VI/BK GY/BK MEMORY 16 YL 8 BK 7 RD 15 OR/WH REMOTE 5 BL/WH 3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH 12 WH/BK 1 GY...
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5.10 16 PIN CORD DIAGRAM (for KD-G721,KD-G722,KD-G727) Black Green OR/WH Violet Gray Blue BL/WH White Yellow Orange Brown WH/BK GN/BK VI/BK GY/BK BL/WH OR/WH 7 RD RD 7 16 YL MEMORY YL 4 15 OR/WH 8 BK REMOTE 6 BL/WH 13 BR 3 GN 11 GN/BK...
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5.11 16 PIN CORD DIAGRAM (for KD-G724,KD-G725) Black Green OR/WH Violet BL/WH Gray Blue WH White Yellow WH/BK Brown Orange GN/BK VI/BK GY/BK MEMORY 16 YL 8 BK 7 RD 15 OR/WH 13 BR 3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH 12 WH/BK...
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Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken, 371-8543,Japan (No.MA247) Printed in Japan...
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SCHEMATIC DIAGRAMS CD RECEIVER KD-AR770J,KD-G720J,KD-G721E,KD-G721EX KD-G721EY,KD-G721EU,KD-G722E,KD-G722EX KD-G722EY,KD-G722EU,KD-G724UI,KD-G725U KD-G725UN,KD-G725UH,KD-G725UT,KD-G727EE CD-ROM No.SML200602 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Contents Block diagram Standard schematic diagrams Printed circuit boards 2-15 to 17 No.MA247SCH COPYRIGHT 2006 Victor Company of Japan, Limited.
Safety precaution 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 directly or touch it in case of an adjustment or operation check.
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Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken,371-8543,Japan Printed in Japan (No.MA247SCH)
PARTS LIST KD-AR770J,KD-G720J,KD-G721E,KD-G721EX KD-G721EY,KD-G721EU,KD-G722E,KD-G722EX KD-G722EY,KD-G722EU,KD-G724UI,KD-G725U KD-G725UN,KD-G725UH,KD-G725UT,KD-G727EE * All printed circuit boards and its assemblies are not available as service parts. * Please refer to the mechanism manual (model TN2001-1118, No.MY004) for the CD mechanism. - Contents - Exploded view of general assembly and parts list (Block No.M1) Electrical parts list (Block No.01~09)
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Exploded view of general assembly and parts list Block No. Switch board...
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KD-G721,KD-G722 USB board KD-AR770 Main board...
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General Assembly Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local GE10153-001A TOP CHASSIS GE32125-001A SIDE PANEL QYSDST2604ZA TAP SCREW M2.6 x 4mm(x3) GE40235-001A SCREW (x2) GE40235-004A SCREW (x3) QYSDST2604ZA TAP SCREW M2.6 x 4mm(x2) QYSDST2606ZA TAP SCREW M2.6 x 6mm QYSDST2610ZA TAP SCREW...
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Symbol No. Part No. Part Name Description Local GE32142-001A LENS GE32141-001A LENS CASE GE40313-001A LIGHTING SHEET GE40321-001A SHEET QLD0383-001 LCD MODULE QNZ0867-001 RUBBER CONN GE32127-001A BOTTOM COVER GE32146-001A INSULATOR QMFZ047-150-T FUSE GE32123-001A REAR BARCKET QYSDST2606ZA TAP SCREW M2.6 x 6mm QYSDST2606ZA TAP SCREW M2.6 x 6mm...
Electrical parts list Main board Symbol No. Part No. Part Name Description Local (KD-AR770J,KD-G720J,KD-G724UI, D703 UDZW6.2B-X DIODE KD-G725U,KD-G725UH,KD-G725UN, D704 UDZW6.2B-X DIODE D705 UDZW6.2B-X DIODE KD-G725UT) D706 UDZW6.2B-X DIODE D707 UDZW6.2B-X DIODE Block No. [0][1] D708 UDZW6.2B-X DIODE D709 UDZW6.2B-X DIODE ...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C316 QEKJ1EM-475Z E CAPACITOR 4.7uF 25V M C554 NCB31EK-104X C CAPACITOR 0.1uF 25V K C317 QTE1C57-476Z E CAPACITOR 47uF 16V C555 NCB31EK-104X C CAPACITOR 0.1uF 25V K C318...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C908 QEKJ1AM-227Z E CAPACITOR 220uF 10V M R331 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J C909 QERF0JM-337Z E CAPACITOR 220uF 10V M R332 NRSA63J-821X MG RESISTOR 820Ω...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R503 NRSA02J-0R0X MG RESISTOR 0Ω 1/10W J R713 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R504 NRSA63J-822X MG RESISTOR 8.2kΩ 1/16W J R714 NRSA63J-103X MG RESISTOR 10kΩ...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R479 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J 1SS355W-X DIODE C.M R482 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J 1SS355W-X DIODE C.M R483 NRSA63J-103X MG RESISTOR 10kΩ...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C311 QFV91HJ-474Z MF CAPACITOR 0.47uF 50V J C560 NCB31EK-104X C CAPACITOR 0.1uF 25V K C312 QFV91HJ-474Z MF CAPACITOR 0.47uF 50V J C561 NCB31EK-104X C CAPACITOR 0.1uF 25V K...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C937 QEKJ0JM-227Z E CAPACITOR 220uF 6.3V M R438 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J C938 NCB31EK-104X C CAPACITOR 0.1uF 25V K R439 NRSA63J-103X MG RESISTOR 10kΩ...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R591 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R787 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R593 NRSA63J-243X MG RESISTOR 24kΩ 1/16W J R801 NRSA63J-473X MG RESISTOR 47kΩ...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R681 NRSA63J-201X MG RESISTOR 200Ω 1/16W J Q640 2SA1365/F/-X TRANSISTOR R691 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J Q641 RT1N141C-X DIGI TRANSISTOR R692 NRSA63J-471X MG RESISTOR 470Ω...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C447 NCB31CK-104X C CAPACITOR 0.1uF 16V K R477 NRSA63J-472X MG RESISTOR 4.7kΩ 1/16W J C448 NBE20JM-226X TA E CAPACITOR 22uF 6.3V M R478 NRSA63J-201X MG RESISTOR...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local D321 1SS355W-X DIODE C.M C316 QEKJ1EM-475Z E CAPACITOR 4.7uF 25V M D331 1SS355W-X DIODE C.M C317 QTE1C57-476Z E CAPACITOR 47uF 16V D341 1SS355W-X DIODE C.M C318...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C565 NCB31EK-153X C CAPACITOR 0.015uF 25V K NRSA63J-103X MG RESISTOR 10kΩ 1/16W J C566 NCB31EK-104X C CAPACITOR 0.1uF 25V K NRSA63J-473X MG RESISTOR 47kΩ...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R444 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R599 NRSA63J-152X MG RESISTOR 1.5kΩ 1/16W J R445 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R701 NRSA63J-473X MG RESISTOR 47kΩ...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R808 NRSA63J-331X MG RESISTOR 330Ω 1/16W J D613 LSQ971/KL/-X R809 NRSA63J-223X MG RESISTOR 22kΩ 1/16W J D614 LSQ971/KL/-X R810 NRSA63J-101X MG RESISTOR 100Ω...
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Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local S611 NSW0206-001X TACT SWITCH C522 NCB31CK-104X C CAPACITOR 0.1uF 16V K S612 NSW0206-001X TACT SWITCH C531 NCB31AK-474X C CAPACITOR 0.47uF 10V K S613 NSW0206-001X TACT SWITCH...
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Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. A1,A4,A5, A1,A4,A5,A20 A21,A23 KD-G721_EU KD-G721_E,EY,EX A1,A4,A20,A22 KD-G722_EU KD-G722_E,EY,EX A25,A26,A27 A1,A3,A4, A1,A4,A20 A5,A6 KD-AR770_J,KD-G720_J KD-G725_U KD-G727_EE A1,A4 KD-G724_UI KD-G725_UN,UH,UT KIT : A9,A10,A11 A12,A13 KD-G721_E,EU,EY,EX KD-G722_E,EU,EY,EX KD-G725_U...
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Packing and Accessories Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local GET0354-001A INST BOOK ENG SPA FRE AR770J,G720J GET0357-002A INST BOOK SPA GRE POR G721E,G722E GET0357-005A INST BOOK SPA TUR PER G721EU,G722EU GET0357-004A INST BOOK DUT SWE DAN FIN G721EX,G722EX GET0357-007A INST BOOK...
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Symbol No. Part No. Part Name Description Local GE10156-001A EPS CUSHION QPC03004315P POLY BAG 30cm x 43cm G721E,G721EU,G721EX,G721EY,G722E, FSPG4002-001 POLY BAG (x2) G722EU,G722EX,G722EY,G725U AR770J,G720J,G724UI,G725UH,G725UN, FSPG4002-001 POLY BAG G725UT,G727EE QPA00801205 POLY BAG 8cm x 12cm QPC01002515 POLY BAG 10cm x 25cm QPA01003003 POLY BAG 10cm x 30cm...