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Nakamichi DRAGON-CD Limited Service manual

Manual is about: DRAGON-CD/DAC Limited MusicBank CD Player System

Summary of DRAGON-CD Limited

  • Page 1

    Dragon-cd limited (cd player unit) i service manual service manual dragon-cd/dac limited musicbank cd player system dragon-cd/dac limited service manual.

  • Page 2

    Dragon-cd limited (cd player unit) ii contents this service manual consists of the following units. • dragon-cd limited (cd player unit) • dragon-ps limited (power supply unit) • dragon-dac limited (dac) note: this ragon-cd/dac limited service manual describes the different items from the dragon-cd/...

  • Page 3: Cd Player Unit

    Dragon-cd limited (cd player unit) 1-1 dragon-cd limited (cd player unit) cd player unit dragon-cd limited tri-stage isolation push musicbank cd player.

  • Page 4

    Dragon-cd limited (cd player unit) 1-2 contents 1. General 1.1. Product code v686 1.2. Destinations usa, can, otr, ep, jpn abbreviations usa — u.S.A. Can — canada otr — other ep — europe jpn — japan 1. General .............................................................................................

  • Page 5

    Dragon-cd limited (cd player unit) 1-3 1.3. Package ass'y and accessory ass'y fig. 1 schematic ref. No. Part no. Description q'ty schematic ref. No. Part no. Description q'ty — package ass'y 01 0f05006a packing (for power supply unit) 2 02 0f04874a soft sheet a (for power supply unit) 1 03 0f05002a ...

  • Page 6

    Dragon-cd limited (cd player unit) 1-4 2. Mechanism ass'y and parts list schematic ref. No. Part no. Description q'ty schematic ref. No. Part no. Description q'ty 30 0j07486a mecha cushion 2 31 0j07456a seal s 2 32 0j07601a al stabilizer bottom 1 33 0h07020b bonnet lower 1 34 0h08608a emblem 1 l01 0...

  • Page 7

    Dragon-cd limited (cd player unit) 1-5 fig. 2.1.2 synthesis (2/2).

  • Page 8

    Dragon-cd limited (cd player unit) 1-6 2.2. Front panel ass'y (a01) fig. 2.2 2.2. Front panel ass'y (a01) a01 — front panel ass'y 1 01 0h08620a knob ass'y 2 02 0j07595a washer 12.2mm 2 03 0h08609a front door 1 04 0h06935b door sponge 1 05 0h07092a door spacer 2 06 0j07495a spring k 2 07 0j07485a kno...

  • Page 9

    Dragon-cd limited (cd player unit) 1-7 2.3. Rear panel ass'y (a02) fig. 2.3 schematic ref. No. Part no. Description q'ty 2.3. Rear panel ass'y (a02) a02 — rear panel ass'y 1 01 ba09410a digital out p.C.B. Ass'y 1 02 0h07088a front shield 1 03 0h07013a rear panel 1 04 0b80830a 3p xlr connector (male)...

  • Page 10

    Dragon-cd limited (cd player unit) 1-8 lubricant (grease) a a a : floil g425 b b b : floil fl777 2.4. Mechanism deck ass'y (a03) fig. 2.4.

  • Page 11

    Dragon-cd limited (cd player unit) 1-9 2.4. Mechanism deck ass'y (a03) a03 cg09331a mechanism deck ass'y 1 01 2c00128a clamper top mss 1 02 2c00285a top cover n 1 03 2c00016a magnet 17x27x5 1 04 2c00015a clamper lo 1 05 2c00101a a arm cushion 2 06 2c00116a assist arm n 1 07 cb00245a stocker n ass'y ...

  • Page 12

    Dragon-cd limited (cd player unit) 1-10 lubricant (grease) a a a : floil g425 b b b : floil fl777 2.5. Tray ass'y (b01) schematic ref. No. Part no. Description q'ty fig. 2.5 2.5. Tray ass'y (b01) b01 cb00246a tray ass'y n 1 01 2c00287a tray top n 1 02 2c00303a tray plate n 1 03 2c00068a shuttle lock...

  • Page 13

    Dragon-cd limited (cd player unit) 1-11 lubricant (grease) a a a : floil g425 2.6. Side chassis r section (b02) fig. 2.6 schematic ref. No. Part no. Description q'ty 2.6. Side chassis r section (b02) b02 — side chassis r n section 1 01 cb00329a change plate n ass'y 1 02 2c00281a carriage opener n 1 ...

  • Page 14

    Dragon-cd limited (cd player unit) 1-12 2.7. Main chassis section (b03) lubricant (grease) a a a : floil g425 b b b : floil fl777 fig. 2.7 schematic ref. No. Part no. Description q'ty schematic ref. No. Part no. Description q'ty 28 0b81459a 2p t-post 2 29 0b81460a 3p t-post 1 30 0b09663a rk 270 1/6w...

  • Page 15

    Dragon-cd limited (cd player unit) 1-13 2.8. Drive unit ca section (b04) fig. 2.8 schematic ref. No. Part no. Description q'ty schematic ref. No. Part no. Description q'ty 2.8. Drive unit ca section (b04) b04 — drive unit ca section 1 01 2c00023a gear power 1 02 2c00022a gear middle 1 03 2c00105a pl...

  • Page 16

    Dragon-cd limited (cd player unit) 1-14 3. Modified circuit the following parts have been added to the main p.C.B. Ass'y. Schematic ref. No. Part no. Description added between (countermeasures against cd-r) c162 0b41297a cml 0.082 50v j pins 15 and 16 of u101 c165 0b41975a cc 10p 50v pins 8 and 9 of...

  • Page 17: Power Supply Unit

    Dragon-ps limited (power supply unit) 2-1 dragon-ps limited power supply unit dragon-ps limited (power supply unit) power off on disc track track time random repeat disc digital input a b tri-stage isolation 1. Mechanism ass'y and parts list .............................................................

  • Page 18

    Dragon-ps limited (power supply unit) 2-2 1. Mechanism ass'y and parts list schematic ref. No. Part no. Description q'ty schematic ref. No. Part no. Description q'ty fig. 1.1 1.1. Synthesis — synthesis 01 0h07035a bottom cover 1 02 ba09403a power supply p.C.B. Ass'y 1 03 0b50280a power transformer [...

  • Page 19

    Dragon-ps limited (power supply unit) 2-3 1.2. Front panel ass'y (a01) fig. 1.2 1.2. Front panel ass'y (a01) a01 — front panel ass'y 1 01 0h08617a front panel 1 02 0h05488a led lens b 3 03 0h05975a remote lens 1 04 0h07037a window 1 05 0j07552b sleeve 7 06 0j07554a cushion 7 07 0h07038a button 7 08 ...

  • Page 20

    Dragon-ps limited (power supply unit) 2-4 schematic ref. No. Part no. Description q'ty — remote control unit 1 01 0h08619a remote front panel 1 02 0b90680a battery case 1 03 0b90683a battery 2 04 0b10909a led se303a-c 1 05 0h07041a remote side wood plate 2 06 0h07042a remote bottom cover 1 07 0h0704...

  • Page 21

    Dragon-dac limited 3-1 dragon-dac limited dragaon-dac limited enhanced linearity d/a converter tri-stage isolation push.

  • Page 22

    Dragon-dac limited 3-2 100dac 1. General ..................................................................................................................................................... 3-2 2. Parts location for electrical adjustment ................................................................

  • Page 23

    Dragon-dac limited 3-3 1.2. Package ass'y and accessory ass'y — package ass'y 01 0f05022a spacer 2 02 0f05002a packing f,r 2 03 0f04956a soft sheet 1 04 0f05004a inner carton 1 05 0f05010a outer carton 1 — accessory ass'y 1 0b80833a pin pin cable 1 0d06704a nc 4 cable ass'y 1 0e03310a m4x6 + binding...

  • Page 24

    Dragon-dac limited 3-4 2. Parts location for electrical adjustment fig. 2 3. Electrical adjustments 1. Turn on the power. 2. Adjust vr401 to obtain +9.0 v ± 0.1 v on the dc voltmeter. Step item output mode adjust- remarks connection ment 1 ± 9 v dc voltmeter — dif d-d p.C.B. Adjustment between +9 v ...

  • Page 25

    Dragon-dac limited 3-5 4.1. Synthesis 4. Mechanism ass'y and parts list schematic ref. No. Part no. Description q'ty schematic ref. No. Part no. Description q'ty 4.1. Synthesis _ synthesis 01 0j07542b sleeve 8 02 0h07021a side wood plate 2 03 0h07024a side spacer a 8 04 0h07023a leg 4 05 0j07543a le...

  • Page 26

    Dragon-dac limited 3-6 fig. 4.1.2 synthesis (2/2).

  • Page 27

    Dragon-dac limited 3-7 4.2. Front panel ass'y (a01) schematic ref. No. Part no. Description q'ty fig. 4.2 4.2. Front panel ass'y (a01) a01 — front panel ass'y 1 01 0h08620a door knob 2 02 0j07595a washer 12.2mm 2 03 0h08609a front door 1 04 0h06935b door sponge 1 05 0h07092a door spacer 2 06 0j07495...

  • Page 28

    Dragon-dac limited 3-8 4.3. Rear panel ass'y (a02) fig. 4.3 schematic ref. No. Part no. Description q'ty 4.3. Rear panel ass'y (a02) a02 — rear panel ass'y 1 01 0h07088a front shield 1 02 0h07028a rear panel 1 03 0b80863a 1p pin jack (yel) [pj312,313] 2 04 0b80831a 4p xlr connector (male) [pj314] 1 ...

  • Page 29

    Dragon-dac limited 3-9 5. Mounting diagrams and parts list note: 1. Component side is illustrated unless otherwise specified. 2. Polarity of electrolytic capacitor. 5.1. Dif d-d p.C.B. Ass'y fig. 5.1 + -.

  • Page 30

    Dragon-dac limited 3-10 5.2. Dac fa p.C.B. Ass'y fig. 5.2.

  • Page 31

    Dragon-dac limited 3-11 5.1. Dif d-d p.C.B. Ass'y ba10266a dif d-d p.C.B. Ass'y — rca in — u301 0b12933a ic ad8058ar* u302 0b11568a ic tc74hcu04ap l301 0b51040a micro coil 1mh l306 0b51040a micro coil 1mh r301 0b25087a rm 75 1/4w f r302,303 0b09677a rk 1k 1/6w j r304,305 0b09677a rk 1k 1/6w j r306 0...

  • Page 32

    Dragon-dac limited 3-12 schematic ref. No. Part no. Description schematic ref. No. Part no. Description r710l,r 0b25205a rm 1.27k 1/4w f r711l,r 0b25234a rm 2.55k 1/4w f r712l,r 0b25181a rm 715 1/4w f r814l,r 0b09645a rk 47 1/6w j r815l,r 0b09645a rk 47 1/6w j r816l,r 0b09651a rk 82 1/6w j r817l,r 0...

  • Page 33

    Dragon-dac limited 3-13 6. Ic block diagrams fig. 6.5 8-times oversampling digital filter df1704e (u306) 8 7 +v 6 out 5 4 -v 3 in2 2 in1 1 (top view) fig. 6.2 operational amp. Ne5534an (top view) 14 13 12 11 10 9 8 7 6 5 4 3 2 1 vdd a6 y6 a5 y5 a4 y4 gnd y3 a3 y2 a2 y1 a1 fig. 6.3 inverter tc74hcu04...

  • Page 34

    Dragon-dac limited 3-14 serial input i/f & control logic reference & servo 23-bit dac a 23-bit dac b bipolar offset 14 iout 12 bpo dc 11 +vcc 15,16 agnd 20 -vcc 6 +vdd 5 dgnd 4 -vdd 17 servo dc 19 ref dc power supply 2 bclk 7 wclk 1 data 9 20bit 10 invert fig. 6.6 24-bit d/a converter pcm1704u (u701...

  • Page 35

    3-15 dragon-dac limited 7. Block diagram fig. 7 din1 din0 xout xin disel xmode 4 3 21 22 48 1 _ + _ + _ + _ + local regulator local regulator local regulator local regulator local regulator +8(v) dig-gnd +8(v) dig-gnd -8(v) +9v a-gnd -9v u301,302 digital input a digital input b u303 (reset ic) pc501...

  • Page 36

    Dragon-dac limited 3-16 8. Specifications [dragon-dac limited] digital input (coaxial) input impedance ................................... 75 Ω input level ............................................ 0.5 vp-p sampling frequency ................................. 44.1 khz/48 khz/96 khz (automatic sel...

  • Page 37

    Dragon-dac limited dragon-dac limited dragon-dac limited dragon-dac limited note : description of electrolytic capacitor : 100/16v=100 16v (chassis).

  • Page 38

    G-0006pda 0q06267a nakamichi corporation 1-153 suzukicho, kodaira, tokyo 187-8501, japan phone: 81 (42) 342-1111 nakamichi america 955 francisco st., torrance, ca 90502 phone: 1 (310) 538-8150 fax: 1 (310) 324-7614 nakamichi asia 8/f the grande bldg., 398 kwun tong rd., kowloon, hong kong phone: 852...