Kenwood MDX-G3, Service Manual

Page 1: ...rop certifies this equipment conforms to DHHS Regulations No 21 CFR 1040 10 Chapter 1 subchapter J DANGER Laser radiation when open and interlock defeat ed AVOID DIRECT EXPOSURE TO BEAM L BLUE S SILVER R RED Note Please contact KENWOOD service in your side if you want to get the AC power cord Plastic cabinet ass y A02 2996 01 Miniature phone jack E11 0399 05 Rod antenna T90 0828 05 Miniature phone...

Page 2: ...sporting or moving this unit carry out the following oper ations 1 Remove the CD or MD from the unit 2 Press the MD 6 key 3 Wait for some time and verify that the display becomes as shown in the figure 4 Press the CD 6 key 5 Wait for some time and verify that the display becomes as shown in the figure 6 Wait a few seconds and turn the unit off Memory backup function Stored contents which are clear...

Page 3: ...O N V E R T E R Rod antenna T90 0828 05 Top cover ass y A52 0920 21 L A52 0922 21 S A52 0924 21 R www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 ...

Page 4: ...anel frontwards and pull out the connec tors and FPC 4 Remove the front panel from the rear cabinet 2 How to Remove Top Panel 1 Remove 3 screws 3 from rear side 2 Remove 3 screws 4 from top side 3 Remove 3 screws 5 4 Lift the top cover Note You need to pull out FPC on the rear side of top cover www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q ...

Page 5: ... 00MHz 2 FM 87 50MHz 17 FM 98 50MHz 3 FM 108 00MHz 18 FM 87 50MHz 4 FM 89 10MHz 19 AM 990kHz 5 FM 90 00MHz 20 FM 97 70MHz 6 FM 87 50MHz 21 AM 531kHz 7 FM 87 50MHz 22 FM 87 50MHz 8 FM 87 50MHz 23 FM 87 50MHz 9 AM 1602kHz 24 FM 87 50MHz 10 AM 999kHz 25 FM 87 50MHz 11 AM 630kHz 26 FM 87 50MHz 12 AM 1440kHz 27 FM 87 50MHz 13 FM 106 0MHz 28 FM 87 50MHz 14 AM 531kHz 29 FM 108 0MHz 15 FM 87 50MHz 30 AM 9...

Page 6: ...reference voltage input for the A D converter 11 VDD Power supply input 5V 12 OSC2 O Main clock output 8 38MHz 13 OSC1 I Main clock input 8 38MHz 14 GND Connected to ground 15 XI I Timer clock input 32kHz 16 XO O Timer clock output 32kHz 17 GND Connected to ground 18 MD TXD O MD communication TX to mecha u com RX 19 MD RXD I MD communication RX to mecha u com TX 20 NC Unused 21 FL SDATA O Data out...

Page 7: ...B 1 O Deck recording mute head select control 1 69 A B 2 O Deck recording mute head select control 2 70 Bø Unused 71 NOR Unused 72 BIAS O Control port of bias on off for deck ON OFF 73 R P O Deck recording playback changeover Recording Playback 74 BEAT_C O On off control port of beat cancel for deck ON OFF 75 NC O Unused 76 EVCLK O Sound controller clock output 77 EVDATA O Sound controller data ou...

Page 8: ...rvo on Cyclically changed the mode 03 05 and 03 by pressing the key Time Display Tracking servo off CD STOP 01 Stop the CD operation Adjustment value mean value Cyclically changed in the 07 FG FE FG value FE value stop mode only 08 FB FO FBAL value FO value 09 TG TE TG value TE value 10 TB TO TBAL value TO value SKIP UP Ex 01 02 Track No up SKIP DOWN Ex 02 01 Track No down SKIP UP Normal Indicatio...

Page 9: ...e MD operation and start operation of ALL ERASE if disc is recordable Mechanism half switches indication The mechanism half switches status are indicated blank or E on the display 7th Dot Display 1st figure 2nd figure 3rd figure 4th figure Mechanism FWD REC Inhibit RVS REC Inhibit CrO2 TYPE Cassette Half Half Switch Detection SW Detection SW Detection SW Detection SW ON Blank Blank Blank Blank OFF...

Page 10: ... Fig 1 Fig 1 Check the tape speed so that 3kHz 2 is obtained at the center of the tape Record 400Hz and 12 5kHz alternate ly and adjust the bias current adjust ment potentiometer for the playback levels to become the same FIG ø CASSETTE MECHANISM UNIT PC BOARD ADJUSTMENT Cassette Deck adjustment Tuner adjustment AM ANTENNA RF VC CN23 TAPE Rch 22 pin X28 CN1 X09 E 7 P301 TAPE Lch 20 pin 1 2 LD 5V C...

Page 11: ...T POINT ALIGN FOR On the power from 0 05 to 0 15mw when the diffraction grating is correctly aligned with the RF level of 0 8Vp p or more FIG a 2 LASER CURRENT Test disc Type 4 Connect the DC voltmeter to CN25 1 and 2 in X09 Press the PLAY key to check that the dis play is 03 or 05 220mV to 550mV Note Type 4disc SONY YEDS 18 Test Disc or equivalent KTD 02 LPF Around 47kΩ 390pF or so CD player chec...

Page 12: ...402 PHONE HEAD CN51 TRANSFORMER POWER AC POWER CORD J401 CN2 CN501 WH501 CN502 OP CL SW TEST POINT CN23 CN25 for CHECKING AUX INPUT J1 WH51 D40 1709 MECHANISM ASS Y 5 X28 3130 00 CASSETTE CASSETTE CD MECHANISM ASS Y D40 1640 5 X09 D 7 CD X09 6440 21 A 7 u COM MECHANISM ASS Y D40 1702 MD 5 X09 C 7 POWER AMP X09 E 7 TUNER FULL RANGE T07 0901 5 POWER SUPPLY X09 B 7 X09 G 7 DISPLAY UNIT FL TACT SWITCH...

Page 13: ... E B E B B E E B D D D D Q17 Q18 Q16 Q19 Q6 Q7 Q2 Q13 Q5 Q14 Q1 Q15 C35 X1 C80 C2 C3 C53 L1 L4 R67 R64 R69 R35 R70 R51 R50 R52 R47 R46 R49 R48 R57 R56 R58 R45 R92 R93 R94 R88 R95 R96 R87 R76 R74 R75 R85 R31 C71 C70 C8 C5 C46 C23 C22 C38 C69 C52 C48 C58 C54 C18 R12 R30 R22 R21 C13 C17 C16 C15 C40 C33 C51 L9 C31 W4 C30 C45 W5 C56 C73 C68 C14 C39 R53 W2 R62 W6 L8 R126 R128 W3 C60 C44 W7 O I ADJ B E B...

Page 14: ... W51 C1 R9 C11 W38 C101 14 R192 R193 20 21 W24 W28 W32 W36 16 2 17 1 W25 W29 W10 W53 C22 W52 W43 W50 C34 W71 W75 C12 C102 GND I G O C115 W11 W40 R136 19 R137 2 1 W6 W8 W14 R114 X1 W4 18 2 1 W7 R119 CE RST W76 R129 W22 W5 W31 C108 W55 VDD2 W39 W35 W34 VDD1 X2 R185 C103 W48 W58 R157 W23 W77 W27 W21 R146 W37 R144 W59 W61 26 25 W60 L52 W33 C61 C62 R10 C3 C27 W73 C28 C4 W1 W74 W30 W65 W69 C2 W66 1 W12 ...

Page 15: ...8 64 65 67 66 63 100 C8 0 1 33 R5 220 R6 220 40 51 50 51 50 C3 L1 100u6 3 C2 C5 0 1 28 27 R9 10K 96 92 2 2K R85 C42 470P 3 3 R70 49 48 46 47 45 78 46 45 47 49 48 R25 100 R26 100 3 5V 3 5V 3 5V 3 5V 3 5V 3 5V 3 5V B B 3 5V 3 5V B 3 5V B B 3 5V B B B B B B B B B B 0 1 C1 B B B B B 5V 5V 5V 5V B B 29 Q3 Q3 97 100 B B 83 B N C N C HVDD REGOUT REGNF VOS2 REGDRV VREG VG REGSEL REGGND VOD1 VOS1 VOD2 HGND...

Page 16: ...OPOUT4 OPIN4 OPIN4 5V 5V 23 23 S5 4 VCC FRDT 8 GND FWDT 7 6 RST 5 MODE2 2 FWE 3 NC 1 66 67 B 59 66 67 59 3 5V 3 5V 3 5V 3 5V 3 5V 5V C30 10u16 IN 1 ADJ OUT C31 R31 100u6 3 360 R30 200 2 3 3 5V 3 5V 3 5V 3 5V 3 5V 100 3 5V 3 5V CN1 Q8 Q9 Q10 MD MECHA u COM BUCK UP SL SP MOTOR DRIVER FOC TRA DRIVER A D D A CONVERTER DIGITAL IN E2PROM X09 A 7 3 3 CN4 RESET Q7 S5 D4 REC IN Rch ANALOG S4 PROTECT REFREC...

Page 17: ...E3 E1 E2 R103 100 R104 10K W50 B B B B B CN3 CN2 CN1 Q2 Q1 D4 Q3 Q4 Q9 Q10 D2 Q6 Q5 Q8 Q17 Q18 Q15 Q16 Q19 3 3 X09 A 7 CN5 IC1 HA12230NT Q1 2 2SB1424 Q R Q4 KRC103M or UN4212 Q5 6 19 DTC124EUA or UN5212 Q8 KTC3205 or 2SC3940A R S Q9 10 KTC3199 Y GR or 2SC2785 F E Q15 18 RK7002 D1 2 1SS133 or HSS104A D4 S5688B TPB5 B LINE GND LINE SIGNAL LINE DIGITAL LINE E HD Rch Lch R P HD Q3 DTC143TSA or UN4216 ...

Page 18: ... 510 L302 C345 CF303 47P C301 10K VR301 27K 1u50 C313 0 1 C314 330P C315 47U25 C317 0 022 C316 100P 0 022 36K R308 22K C319 R312 27K R313 2 2u50 C318 2 2K R337 0 01 C346 C322 1u50 R311 2 2K C321 0 47 C320 0 1 15 16 0 1 100P C349 R307 10K C303 C302 150P 1M R356 C304 1u50 3 4 5 6 11 10 C309 0 015 R309 5 1K R310 5 1K C310 0 015 C305 22P C307 1 3 3K R336 3 3K R335 10 11 180 7 2MHz LW SW 16 15 C339 100...

Page 19: ...86 85 87 R101 1K 220P C27 22u16 C28 10u16 C37 220P 10K R24 6 8K R2 R10 3 3K R12 2 2K C62 4 7u35 C40 220P C2 3 3u50 C4 4 7u35 R20 1K C84 4 7u35 C14 0 047 C12 10u16 C16 0 15 C18 0 1 C20 1000P C6 0 068 C50 0 1 C22 2 2u50 C48 220P 1K 220P GND C61 4 7u35 C1 3 3u50 C39 220P C3 4 7u35 R9 3 3K C83 4 7u35 R19 1K C13 0 047 C11 10u16 C15 0 15 C17 0 1 6 8K R1 C19 1000P C49 0 1 C5 0 068 C21 2 2u50 10K R23 C36 ...

Page 20: ... 3 4 5 6 7 8 9 10 11 12 13 DIG11 DIG10 DIG09 DIG08 DIG07 DIG06 DIG05 DIG04 DIG03 DIG02 DIG01 DIG00 RESET 64 63 62 61 60 59 58 57 56 55 54 DIG12 DIG13 DIG14 DIG15 VCC2 SEG00 SEG01 SEG02 SEG03 SEG04 SEG05 59 61 62 63 64 4 3 2 1 7 6 5 58 57 56 55 54 R520 100 13 4 7K 4 7K 4 7K 4 7K R531 R530 4 7K R528 R529 R527 62 64 61 63 60 10K R536 10K R534 10K R533 10K R535 10K R532 3 7 5 4 6 8 R516 620 R515 22 22...

Page 21: ...25 24 31 30 28 29 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 16 15 14 R521 100 R522 100 R523 100 C506 0 01 C507 100P C509 47P C508 47P 47u25 C511 3 4 7 5 6 8 14 16 15 13 1 2 3 5 4 R519 10 C503 22u16 2 2 R524 220 R518 220 R517 1u50 C505 C504 1u50 R526 2 2 C514 33u50 R504 2 2K R505 3 3K R506 6 2K R507 13K R512 3 3K R511 2 2K R513 6 2K R514 13K 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V B B B ...

Page 22: ...7 235 235 203 242 224 235 202 237 823 848 216 239 822 227 817 221 241 220 236 255 229 205 244 244 218 814 846 849 219 238 238 238 DMMD 228 201 239 239 239 239 239 215 235 847 PUMD RHMD FMMD LMMD A D C C B A D B X2 X2 X2 1 2 3 A B EXPLODED VIEW MD MECHANISM www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 ...

Page 23: ... R T N89 3008 46 N82 2608 46 N09 3324 05 N82 3010 45 N82 2612 46 N86 2604 45 N09 3473 05 N09 3481 05 N09 2769 05 N09 5188 05 N89 4008 46 N35 3010 46 N09 5196 05 N82 3012 46 N09 5321 05 3x8 2 6x8 3x8 3x10 BLK 2 6x12 M2 6x4 BLK 3x60 4x10 3x8 M3x8 4x8 M3x10 3x10 3x12 PF PR BS BM STANDBY S509 SOUND S510 BEST HIT S501 MD REC S502 TAPE REC S503 TUNER S504 VOLUME S517 CD PLAY PAUSE S505 MD PLAY PAUSE S50...

Page 24: ...ts Ref No Add ress New Parts Parts No Description Desti nation Re marks 601 1E A02 2996 01 PLASTIC CABINET ASSY 603 1C A09 1151 08 BATTERY COVER 604 1D A21 3897 03 DRESSING PANEL L 604 1D A21 3926 03 DRESSING PANEL SR 605 2C A29 1122 04 PANEL L 605 2C A29 1128 04 PANEL SR 606 1D A50 1380 02 SIDE PLATE 607 2E A50 1381 02 SIDE PLATE 609 1E A52 0920 21 TOP COVER ASSY L 609 1E A52 0922 21 TOP COVER AS...

Page 25: ...omponents Ref No Add ress New Parts Parts No Description Desti nation Re marks C112 CC73GCH1H180J CHIP C 18PF J C113 CC73GCH1H220J CHIP C 22PF J C114 115 CE04RW0J331M ELECTRO 330UF 6 3WV C116 117 CK73GB1H103K CHIP C 0 010UF K C118 119 CK73GB0J105K CHIP C 1 0UF K C120 CK73GB1H222K CHIP C 2200PF K C121 CC73GCH1H101J CHIP C 100PF J C188 189 CC73GCH1H101J CHIP C 100PF J C190 CC73GCH1H330J CHIP C 33PF ...

Page 26: ...Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks C353 CK73GB1H103K CHIP C 0 010UF K C355 CC73GCH1H101J CHIP C 100PF J C401 CE04KW1A332M ELECTRO 3300UF 10WV C402 CQ93FMG1H563J MYLAR 0 056UF J C403 CE04KW1H010M ELECTRO 1 0UF 50WV C404 CE04KW1A101M ELECTRO 100UF 10WV C405 CE04KW1J101M ELECTRO 100UF 63WV C406 CE04KW1J330M ELECTRO 33U...

Page 27: ...ponents Ref No Add ress New Parts Parts No Description Desti nation Re marks R142 RK73GB1J332J CHIP R 3 3K J 1 16W R145 RK73GB1J102J CHIP R 1 0K J 1 16W R147 RK73GB1J101J CHIP R 100 J 1 16W R148 RK73GB1J102J CHIP R 1 0K J 1 16W R149 RK73GB1J101J CHIP R 100 J 1 16W R151 152 RK73GB1J332J CHIP R 3 3K J 1 16W R153 RK73GB1J472J CHIP R 4 7K J 1 16W R154 RK73GB1J101J CHIP R 100 J 1 16W R155 RK73GB1J472J ...

Page 28: ...icates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks R449 RD14NB2E2R2J RD 2 2 J 1 4W R515 RK73GB1J220J CHIP R 22 J 1 16W R516 RK73GB1J621J CHIP R 620 J 1 16W R519 RK73GB1J100J CHIP R 10 J 1 16W R525 RK73GB1J273J CHIP R 27K J 1 16W R532 536 RK73GB1J103J CHIP R 10K J 1 16W R537 RK73GB1J102J CHIP R 1 0K J 1 16W VR301 R12 3100 05 TRIMMING POT 10K W150 ...

Page 29: ...200PF J C5 6 CQ93FMG1H393J MYLAR 0 039UF J C7 8 CE04LW1H100M ELECTRO 10UF 50WV C9 10 CE04LW1HR22M ELECTRO 0 22UF 50WV C11 12 CE04LW1H4R7M ELECTRO 4 7UF 50WV C13 14 CE04LW1H100M ELECTRO 10UF 50WV C15 16 CC45FSL1H221J CERAMIC 220PF J C17 18 CC73GCH1H221J CHIP C 220PF J C19 20 CE04LW1H4R7M ELECTRO 4 7UF 50WV C21 22 CK73GB1H472K CHIP C 4700PF K C100 CE04PW1A101M ELECTRO 100UF 10WV C101 CE04PW1H010M EL...

Page 30: ...any V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks C46 48 CK73GF1E104Z CHIP C 0 10UF Z C46 48 CK73GF1H104Z CHIP C 0 10UF Z C51 C92 0232 05 ELECTRO 10UF 16WV C52 CK73GF1E104Z CHIP C 0 10UF Z C52 CK73GF1H104Z CHIP C 0 10UF Z C54 CK73GB1E223K CHIP C 0 022UF K C55 CK73G...

Page 31: ...R DRIVER IC5 LC32S4400T 10 IC IC6 RC1117ST IC IC7 BR24C02F IC E2PROM IC7 S 24C02BFJ TB IC MEMORY IC IC8 BD7910FV MOS IC IC10 AK4550VT MOS IC IC11 C6006AZ IC Q1 UMW1N TRANSISTOR Q2 2SA1576A R S TRANSISTOR Q3 2SB798 DL TRANSISTOR Q4 DTA144EUA DIGITAL TRANSISTOR Q5 6 DTC114YUA DIGITAL TRANSISTOR Q7 DTA124EUA DIGITAL TRANSISTOR Q8 DTC124EUA DIGITAL TRANSISTOR Q9 2SA1576A R S TRANSISTOR Q10 DTC124EUA D...

Page 32: ...Hz to 20 kHz Wow flutter Unmeasurable limit Cassette Deck section Track 4 track 2 channel stereo Recording system AC bias Frequency 105 kHz Heads Playback recording head x 1 Erasing head x 1 Fast winding time Approx 110 sec C 60 tape Speakers Enclosures Bass reflex type Speaker units 80 mm cone type General Power consumption 35 W Dimensions W 409 mm 16 1 8 H 172 mm 6 3 4 D 225 mm 8 7 8 Weight net ...

Page 33: ...FRANCE S A 13 Boulevard Ney 75018 Paris France KENWOOD ELECTRONICS ITALIA S p A Via G Sirtori 7 9 20129 Milano ltaly KENWOOD IBÉRICA S A Bolivia 239 08020 Barcelona Spain KENWOOD ELECTRONICS AUSTRALIA PTY LTD A C N 001 499 074 16 Giffnock Avenue North Ryde N S W 2113 Australia KENWOOD ELECTRONICS HONG KONG LTD Unit3712 3724 Level37 Tower1 Metroplaza 223HingFongRoad KwaiFongN T HongKong KENWOOD ELE...