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Kenwood KDC-X879 Service Manual
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Kenwood KDC-X879 Service Manual

Kenwood KDC-X879 Service Manual

Cd receiver
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Download this manual See also: Instruction Manual
CD RECEIVER
KDC-X879
SERVICE MANUAL
Escutcheon
(B07-3079-01)
Lever
Screw set
(D10-4674-04) x 2
(N99-1723-05)
Panel assy
(A64-3227-01)
Mounting hardware assy
(J21-9823-03)
Screw set
(N99-1734-05)
TDF PANEL INFORMATION
KDC-X879
© 2004-02 PRINTED IN JAPAN
B53-0128-00 ( N ) 764
CD mechanism extension cord (24PIN) : W05-0935-00
Plastic cabinet assy
(A02-2731-13)
Remote controller assy
(A70-2040-05) : RC-505
MODEL
PARTS NO.
Y33-1790-60
Panel assy
(A64-3249-02)
DC cord
(E30-6294-05)
Size AA Battery
(Not Supplied)
PANEL NAME
TDF-M9000

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Summary of Contents for Kenwood KDC-X879

  • Page 1 CD RECEIVER KDC-X879 SERVICE MANUAL © 2004-02 PRINTED IN JAPAN B53-0128-00 ( N ) 764 CD mechanism extension cord (24PIN) : W05-0935-00 Panel assy (A64-3227-01) Panel assy (A64-3249-02) Plastic cabinet assy DC cord Escutcheon Mounting hardware assy (A02-2731-13) (E30-6294-05) (B07-3079-01)

  • Page 2: Block Diagram

    KDC-X879 BLOCK DIAGRAM AUX IN (X34- ) Q207,208 IC13 PRE OUT TUNER PRE MUTE OP AMP (SUB WOOFER) AUDIO OUT Q203,204 Q303,304 IC12 E-VOL SYSTEM PRE OUT & AM+B PRE MUTE OP AMP E'S+ (REAR) Q205,206 IC11 PRE OUT QUAL...
  • Page 3 KDC-X879 BLOCK DIAGRAM CD PLAYER UNIT DGND (X32-5560-00/0-01) Q1,4 (X32-5590-00/0-01) DGND MP3/WMA LEVEL DATA DECODER SHIFT DOUT OPEN DPU1 u-COM DGND (PICKUP) 12EJE C-SW C-SW BU3.3V DATA IC14 5V REG DGND AGND AGND IC10 SERVO DSP Q3,5,6 (DAC,RF AMP) MUTER...
  • Page 4 KDC-X879 COMPONENTS DESCRIPTION Ref No. Application / Functions Operation / Condition / Compatibility 3.3V Regulator While PAN5V is applied when 3.3V regulator output is +3.3V 2.5V Regulator While PAN5V is applied when 2.5V regulator output is +2.5V Q3,4 FL +B SW FL +B (VDD1) is turned on when Q3 base level goes H 3.3V SW...
  • Page 5 KDC-X879 COMPONENTS DESCRIPTION Ref No. Application / Functions Operation / Condition / Compatibility System IC For System E’s control Audio control IC For WOW/FOCUS control Power supply IC -9V AVR (For 4.5V Pre-out) Reset IC When BU5V line voltage is less than 3.5V, this IC output line is “L”...
  • Page 6 KDC-X879 MICROCOMPUTER’S TERMINAL DESCRIPTION SYSTEM MICROPROCESSOR : UPD703030GC041 (X34-303 : IC1) Pin No. Pin Name Description / Processing Operation Fig. PLL DATA Data input/output terminal for Tuner front-end AM+B AM+B (AM operation : H) (FM+B) FM+B (FM operation : H, Last FM : H with RDS, RBDS model)
  • Page 7 KDC-X879 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description / Processing Operation Fig. LX CON External slave unit (ON : H, OFF : L) LX RST Reset output to external slave unit (Normal : L, After system reset : H 400ms or more and then L) CD MECHA+B CD4.7V output terminal (CD : H, Except CD source : L)
  • Page 8 KDC-X879 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description / Processing Operation Fig. NOISE FM noise detection terminal IFC OUT Front end IFC OUT input terminal (Receiving station : 2.5V or more) POWER DET Audio power IC DC offset detection...
  • Page 9 KDC-X879 MICROCOMPUTER’S TERMINAL DESCRIPTION PANEL MICROPROCESSOR : 703132GJ011-A (X16-253 : IC1) Pin No. Pin Name Description / Processing Operation D14~D8 External ROM data input/output terminal 3.3VDD AVR 3.3V 10~17 D7~D0 External ROM data input/output terminal FL GCP1 FL bright control terminal...
  • Page 10 KDC-X879 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description / Processing Operation 64,65 MODE0,1 PAN RST Reset signal request form system microprocessor (L : Reset) VREF Connect to 83PIN (VREF) 68,69 70,71 AVSS1,0 VREF Connect to 83PIN (VREF) WAVE IN...
  • Page 11 KDC-X879 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description / Processing Operation 109,110 SA RST Reset for spectrum analyzer (H : Reset, L : Normal) 3.3V VDD AVR 3.3V EVSS 114~117 118~123 A21~A16 Address bus 2.5V VDD AVR 2.5V 126~133...
  • Page 12 KDC-X879 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description / Processing Operation Oscillator (16MHz) DVSS Oscillator (16MHz) BU3.3V RESET Reset terminal L : RESET, H : NORMAL 31,32 33,34 EMU0,1 DSPSTB Data strobe signal output terminal DSPA0 Command, parameter select signal H : Parameter, L : Command...
  • Page 13 KDC-X879 MICROCOMPUTER’S TERMINAL DESCRIPTION Pin No. Pin Name Description / Processing Operation MUTER Audio muting control terminal (Rch) I2C data (for system microprocessor) I2C clock (for system microprocessor) MSTOP Interrupt signal for stand-by mode L : STOP, H : STOP cancellation...

  • Page 14: Test Mode

    KDC-X879 TEST MODE How to enter the test mode Test mode specifications of the CD receiver While pressing and holding the Preset 1 and Preset 3 keys, • Forced ejection is inhibited in the reset start operation. When reset the unit.
  • Page 15 KDC-X879 TEST MODE Menu-related specifications AM key Display panel E2PROM condition. • A short press of the Q key initiates the menu mode. (Display) P–ROM OK (Registered code) • Pressing the DNPP key on the remote initiates the Menu P–ROM NG (Code is write in error) mode.
  • Page 16 KDC-X879 TEST MODE Security information 3. How to inscription the panel security code 1. Forced Power ON mode (All models) 1. Enter the test mode. 2. Pressing the AM key on all lighting, check the “P-ROM WAIT” Even when the security (Cord) is approved, resetting the display.
  • Page 17 KDC-X879 PC BOARD (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) DISPLAY UNIT DISPLAY UNIT X16-2530-11 (J74-1587-02) X16-2530-11 (J74-1587-02) R203 CP17 CP20 CP24 CP14 CP22 CP18 CP13 CP15 CP300 CP16 CP12 TEST GREEN DGND E2PCLK SYSRX X16-2530-11 SYSTX Ref. No. Address SCREQ...
  • Page 18 KDC-X879 PC BOARD (COMPONENT SIDE VIEW) ELECTRIC UNIT X34-3030-11 (J74-1473-32) C100 C277 C274 C272 C215 C205 MUTE IC18 I G O C265 C264 R244 C299 C259 D504 Q208 IC13 Q207 C269 C268 R508 C300 R245 R503 R221 C234 R504 C267...
  • Page 19 KDC-X879 SWITCH UNIT X16-2560-10 (J74-1590-02) C279 C274 C273 C275 C278 C206 C314 L305 L307 R308 Q305 R307 C311 R305 R306 L306 C502 X34-3030-11 Ref. No. Address Ref. No. Address IC11 IC12 Q203 IC13 Q204 IC18 IC20 Q205 Q206 Q207 X16-2560-10 Q208 Ref.
  • Page 20 KDC-X879 PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-3030-11 (J74-1473-32) D208 D207 R204 D205 D206 FM+B Q202 C217 C216 D501 AM+B C213 C260 R203 C261 IC17 Q304 C262 D502 D503 C263 C257 C258 C255 C256 PLL+B C253 Q303 C254 R279...
  • Page 21 KDC-X879 SWITCH UNIT X16-2560-10 (J74-1590-02) R265 C286 D204 D203 ILL+B R254 SW14V R255 R231 Q601 C701 R230 SERVO+B Q602 R242 R243 C296 X34-3030-11 Ref. No. Address Ref. No. Address R270 IC10 IC10 C291 R272 IC14 IC15 IC16 IC19 Q201 SW5V...
  • Page 22 KDC-X879 PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5590-00 (J74-1599-12) IC14 R138 R135 R128 R123 R147 R146 CP12 R129 CP13 CP15 R143 X32-5590-00 Ref. No. Address IC14 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 23 KDC-X879 PC BOARD (FOIL SIDE VIEW) CD PLAYER UNIT X32-5590-00 (J74-1599-12) C51 C55 CP10 TRK IN R109 R112 R152 R110 R108 R111 TRK OUT R117 FCS DOWN R119 ADCIN FCS UP R130 IC13 IC10 EMPH D.OUT A.GND 12EJE R120 R118...
  • Page 24 ANT CONT EXT. CONT. ELECTRIC UNIT (X34-303x-xx) BLU/WHT P. CON TEL MUTE ORG/WHT TP67 ILLUMI TP66 DC CORD TP65 (E30-6294-05) : KDC-X879 220u16 AUDIO 10.5V AVR Q16 Q15 FRONT L REAR L WHT/BLK GRN/BLK GRY/BLK VIOL/BLK FRONT R REAR R TP133 VIOL B.U.5V...
  • Page 25 KDC-X879 (X34-303x-xx) UNIT C264,265, C297, R124- R148,149, R222,223,234, R230,231,242, MODEL NAME C501 C502 C505 R106 R107 R108 R109 268,269 154,155,521 235,246,247 243,254,255 KDC-MP925 0-10 C94-0040 22u16 2.2K KDC-X879 0-11 C94-0040 22u16 2.2K FX-9100 0-01 C94-0039 10u16 100K KDC-W8027 2-71 C94-0039...
  • Page 26 KDC-X879 AUX IN REAR FRONT (E30-6310-05) : KDC-W8027/FX-9100 (E30-6311-05) : KDC-X879/MP925 F1 10A FUSE R265 C286 0.01 C288 C287 C289 C110 0.01 R166 R165 4.7K 4.7K R613 D209 D213 2.2K D210 D214 D211 R162 PLL-CLK D215 R607 R610 2.2K D212...
  • Page 27 KDC-X879 AMP for 4.5V AMP for 4.5V AMP for 4.5V PRE-OUT PRE-OUT PRE-OUT IC12 IC11 IC13 C284 2200P C285 2200P -9.1V -9.1V -9.1V C281 2200P R266 R237 R236 R224 R225 R249 R248 ∗ ∗ ∗ C280 2200P C290 C283 2200P 0.01...
  • Page 28 SGND PGND 0.47 R202 4.7K TP115 MOTOR+ C209 R201 10K TP116 MOTOR DRIVER MOTOR DRIVER PH-OUT 0.022 C210 0.01 IC for IC for SW5V PANEL MECHA PANEL MECHA TP118 D GND TP128 TP119 TP129 TP117 TP130 KDC-X879 (1/3) X34-3030-11 (5/5)
  • Page 29 KDC-X879 DISPLAY UNIT (X16-2530-1x) FL+B 1 FL3.3V SW 3.3V SW TP300 ILL+B 2 FLGND FLGND REMO. FAC2 ON SW R202 FAC2 3.3V Q200 FAC1 5.0V 3.3V FAC1 LEVEL SHIFT D GND D GND 3.3V 3.3V NC16 3.3V PAN5V X34-303- PAN5V 12...
  • Page 30 KDC-X879 3.3V 5.0V LEVEL SHIFT 5.0V 5.0V 3.3V 3.3V REMOTE CONTROL SENSOR 5.0V GRAPHIC ROM 3.3V 3.3V BYTE BLACK DISP VSS2 DISP LED 3.3V CP10 SD15 3.3V 3.3V 3.3V 10u10 RED LED SD14 GREEN LED 3.3V SD13 TP44 FLASHROM CHECK...
  • Page 31 • DC voltages are as measured BR24C01AFV-W with a high impedance voltme- (X16-2080-xx) ter. Values may vary slightly UNIT MODEL NAME CP1 IC1 due to variations between indi- KDC-X969 vidual instruments or/and units. KDC-9023R 0-10 KDC-PSW9524 FX-9000 0-01 KDC-X879 (2/3) X16-2530-11 (3/3), X16-2080-10 (1/1)
  • Page 32 BA3830F NC 11 VOL-B VOL-A M5237ML D GND PAN-5V ILL +B ILL +B ILL-GND ESD GND NJM4580V-LF OPEN VOLUME LB1930M KDC-X879 (3/3) (X16-256x-xx) C1-5, D11-15, UNIT : DTA114YUA MODEL NAME D1-10 R1,2 R3,4 R6-10 7-12 17-22 Q2-4 : 2SD2114K KDC-X979/X879...
  • Page 33 KDC-X879 CD PLAYER UNIT (X32-5560-00/0-01) (X32-5590-00/0-01) LEVEL SHIFT (3.3V 5.0V) (DA) 3.3V (MP3) 0/3.3V D.OUT DAC RST TP32 LEVEL SHIFT 12EJE SW (3.3V 5.0V) 12EJE-SW 16.000MHz TP29 R151 LEVEL SHIFT LOS SW 100K LOS-SW (3.3V 5.0V) RESET 3.3V 3.8/0V DATA 2.4/0V...
  • Page 34 KDC-X879 Q9,10 TP39 ADCIN Vref DPU1(X92- ) R34 4.7K 1.7Vp-p 270K IOP1 IOP2 OPTICAL 6800P PICKUP C28 10 0.3Vp-p 1.65V R35 100K 3.3V RF2- 1.65V 1.0Vp-p FCS+ 1.0Vp-p 0.2V TRK+ 3.9K TRK- 1.7Vp-p FCS- 3300P 3.3V ADVDD AVDD1 3.3V DGND1 1.65V...
  • Page 35 KDC-X879 EXPLODED VIEW (MECHANISM) DPU1 DFPC1 (X32) φ : N09-6192-05 M1.7x8.5 : N09-6191-05 M1.7x2.5 : N09-6004-05 M2x2 : N09-6193-05 φ : N09-6194-05 2x6(BLK) : N19-2163-04 1.6 WASHER : N39-2020-46 M2x2 * CD MECHANISM OPERATION DESCRIPTION is not in this sevice manual.
  • Page 36 KDC-X879 EXPLODED VIEW (UNIT) M2x1.9 N09-4448-05 FLAT WASHER N19-2176-04 N09-6073-05 RETAINIING RING N24-3015-60 M2x2 N09-6087-15 M2x2.5 N38-2025-46 N09-6088-05 M2.6x5(BLK) N38-2650-45 M2x3(BLK) N09-6089-15 M3x5 N67-3005-46 φ2x5 φ3x5 N09-6093-05 N83-3005-46 φ2x5(BLK) φ3x8 N09-6094-05 N83-3008-46 φ2x4(BLK) M2x3(BLK) N09-6096-05 N86-2004-45 φ3x8 M2x2 N09-6097-05 N80-3008-46 φ2x5(BLK)

  • Page 37: Parts List

    KDC-X879 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No. Description Ref. No.
  • Page 38 KDC-X879 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. KDC-X879 Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No. Description Ref. No.
  • Page 39 KDC-X879 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. DISPLAY UNIT (X16-2530-11) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 40 KDC-X879 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. CD PLAYER UNIT (X32-5590-00) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 41 KDC-X879 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. CD PLAYER UNIT (X32-5590-00) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 42 KDC-X879 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. ELECTRIC UNIT (X34-3030-11) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 43 KDC-X879 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. ELECTRIC UNIT (X34-3030-11) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 44 KDC-X879 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. ELECTRIC UNIT (X34-3030-11) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.
  • Page 45 KDC-X879 PARTS LIST New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. ELECTRIC UNIT (X34-3030-11) Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref. No. Parts No.

  • Page 46: Specifications

    KENWOOD ELECTRONICS GULF FZE KENWOOD ELECTRONICS UK LIMITED P.O. Box 61318, Jebel Ali, Dubai, U.A.E. Kenwood House, Dwight Road, Watford, Herts, WD18 9EB, United Kingdom KENWOOD ELECTRONICS (THAILAND) CO., LTD. KENWOOD ELECTRONICS DEUTSCHLAND GMBH 956 Udom Vidhya Building (Olympia) Rama IV Road, Silom, Bangrak, Bangkok 10500 Thailand Rembrücker-Str.