1. DL manuals
  2. Yamaha
  3. Musical Instrument
  4. Portable Grand DGX-220
  5. Service Manual

Yamaha Portable Grand DGX-220 Service Manual

Other manuals for Portable Grand DGX-220: Owner's Manual, Owner's Manual

Summary of Portable Grand DGX-220

  • Page 1

    Service manual hamamatsu, japan copyright (c) yamaha corporation. All rights reserved. Pdf ’06.04 pk 001761 contents specifications .................................................................... 3 panel layout ........................................................................ 4 circuit b...

  • Page 2: Saving Data

    2 dgx-220/ypg-225 saving data saving and backing up your data the panel settings and some other types of data are not retained in memory when you turn off the power to the instrument. Save data you want to keep to the registration memory. Saved data may be lost due to malfunction or incorrect operat...

  • Page 3: ■ Specifications

    3 dgx-220/ypg-225 ■ specifications keyboards • 76 box type keys (e0–g6), with touch response. Display • lcd display (backlit) setup • standby/on • master volume:min–max panel controls • song, voice, style, easy song arranger, p.A.T. On/off, lesson l, lesson r, lesson start, metronome on/off, portabl...

  • Page 4: ■ Panel Layout

    4 dgx-220/ypg-225 q [standby/on] switch w [master volume] control e [p.A.T. On/off] button r [music database] button t [function] button y lesson [l], [r], [start] buttons u [metronome on/off] button i [tempo/tap] button o song memory [rec], [1]–[5], [a] buttons !0 [repeat & learn]/ [acmp on/off] bu...

  • Page 5

    5 dgx-220/ypg-225 #0 usb terminal #1 sustain jack #2 phones/output jack #3 dc in 12v jack #0 #1 #2 #3 !6 !7 !8 !9 @4 @2 @3 @5 @0 @1 @6 @7 @8 • rear panel @2 number buttons [0]–[9],[+] and [-] buttons @3 [demo] button @4 regist memory [memory/bank], [1], [2] buttons @5 [portable grand] button @6 [spl...

  • Page 6

    6 dgx-220/ypg-225 ■ circuit boards layout & wiring • upper case • lower case 16 1 2 3 16 15 black red black red mk-76l mk-76h right side red black black brown left side 1 6 15 2 3 16 16 5 4 14 8 10 12 13 9 11 7 dmlcd pb (amjk 6/6) twl (pn 4/6) twr (pn 5/6) amjk 4/6 am (amjk 1/6) pnl (pn 3/5) pnr (pn...

  • Page 7

    7 dgx-220/ypg-225 30 wc601000 mk1 mk4 mk5 vr3 stb2 amdm2 mk-76l-cn4 *1 *5 dmlcd-cn401 *1 *5 12p 40 wc601400 wc601500 wg332600 wg332700 wg342900 mk-76l-cn5 *1 *5 dmlcd-cn404 *1 *5 6p 50 mk-76h-cn1 *1 *5 dmlcd-cn405 *1 *5 8p wh551 am-cn551 *2 *5 am-cn552 *2 *5 5p wh153 am-cn153 *2 *5 am-cn154 *2 *5 4p...

  • Page 8

    8 dgx-220/ypg-225 ■ block diagram +v +3.3d 37 +3.3d 37 +3.3d n11-n16, n21-n26 b1-b14 sd0 sysck bclk wclk ma01-22 md00-15 md01-22 md00-15 md01-18 md00-15 md01-09 md00-15 ic501(16p) ic203(48p) ic401 (16p) ic402 (16p) ic206(48p) ic204(44p) ic502(8p) rch lch ic102 ic103 ic101 pe3-6 +2.5d +3.3d +5d +v fc...

  • Page 9: Disassembly Procedure

    9 dgx-220/ypg-225 ■ disassembly procedure (fig.1) [180] [180] [180] [180] [180] [180] [180] [390] [470] [390] [470] battery cover assembly lower case assembly [180]: bind head tapping screw-b 3.0x8 mfzn2w3 (we774300) [390]: bind head tapping screw-b 3.0x30 mfzn2w3 (wf491000) [470]: spacer (wg387800)...

  • Page 10

    10 dgx-220/ypg-225 lower case assembly spring terminal (+) spring terminals spring terminal (-) (fig.2) spring terminal(+) hook hook hook spring terminal(-) spring terminal hook (fig.3) (fig.4) 2. Spring terminal a. Spring terminal (+) and (-) 2-1 remove the lower case assembly. (see procedure 1.) 2...

  • Page 11

    11 dgx-220/ypg-225 3. Twl and twr(pn 4/5, 5/5) circuit boards, speaker (tweeter) (time required: about 4 minutes for each) 3-1 remove the lower case assembly. (see procedure 1.) 3-2 remove two (2) screws marked [180a]. The twl(pn 4/5, 5/5) circuit board can then be removed. (fig.6) 3-3 remove the sp...

  • Page 12

    12 dgx-220/ypg-225 6. Am (amjk 1/6), amjk 4/6 and amjk 5/6 circuit boards (time required: about 6 minutes) * the amjk 4/6 and amjk 5/6 circuit boards are connected to the am (amjk 1/6) circuit board via wirings. 6-1 remove the lower case assembly. (see procedure 1.) 6-2 remove the master volume knob...

  • Page 13

    13 dgx-220/ypg-225 9. Speaker (woofer) (time required: about 4 minutes) 9-1 remove the lower case assembly. (see procedure 1.) 9-2 remove four (4) screws marked [200a], then remove the speaker (woofer). (fig.11) * left and right speakers (woofers) can be removed in the same manner. (fig.12) (fig.11)...

  • Page 14

    14 dgx-220/ypg-225 (fig.13) [220]: bind head tapping screw-b 3.0x10 mfzn2w3 (we774200) (fig.14) (fig.15) lower case [220b] [220d] [220c] [220a] mk-76l mk-76h 2 9 6 7 8 13 5 4 12 1 3 11 10 1 3 6 5 4 13 7 8 14 2 12 11 10 9 15 17 16 mk-76l mk-76h 11. Mk-76l and mk-76h circuit boards (time required: abo...

  • Page 15: ■ Lsi Pin Description

    15 dgx-220/ypg-225 ■ lsi pin description m38k07m4l-307hp (x5186100) cpu(usb) ......................... 15 ymw767-vtz (x6055a00) cpu ............................................. 16 nt3881dfg-01 (x3148a00) lcd driver ............................ 17 ak4385et (x6040a00) dac ...............................

  • Page 16

    16 dgx-220/ypg-225 pin pin no. Name i/o function no. Name i/o function 1 vss - vss 65 vss - vss 2 testn i input for test 66 iovdd - iovdd +3.3v 3 pllbpn i pll bypass select 67 lbn/lwrn/pf6 o external memory lower-byte enable 4 pllvdd - pllvdd +2.5v 68 ubn/uwrn/pf7 o external memory upper-byte enable...

  • Page 17

    17 dgx-220/ypg-225 ak4385et (x6040a00) dac (digital to analog converter) pin no. Name i/o function pin no. Name i/o function 1 mclk i master clock 9 aoutr- o rch analog out(-) 2 bick i audio serial data clock 10 aoutr+ o rch analog out(+) 3 sdti i audio serial date input 11 aoutl- o lch analog out(-...

  • Page 18: Ic Block Diagram

    18 dgx-220/ypg-225 ■ ic block diagram sn74lv32apwr (x5647a00) quad 2 input or dmlcd:ic207 1 2 3 1a 1y 4 2a 5 2b 6 2y 7 gnd 1b 14 13 12 vcc 4a 11 4y 10 3b 9 3a 8 3y 4b sn74lv138apwr (x7284a00) decoder dmlcd: ic401,402 enableinputs g1 g2a g2b c b a y0 y1 y2 y3 y4 y5 y6 y7 h h h l h h h h h h h x x x l...

  • Page 19: Circuit Boards

    19 dgx-220/ypg-225 contents am (amjk 1/6) circuit board (x7176c0) ......................................... 22 amjk 4/6 (master volume) circuit board (x7176c0) ...................... 22 amjk 5/6 (standby/on) circuit board (x7176c0) .......................... 22 dmlcd circuit board (x7174c0) ...........

  • Page 20

    20 dgx-220/ypg-225 to pn 4/5,5/5(twr) to woofer r suntain usb to dmlcd-cn802 cut the patterns. C855 r817 r818 c855 fix by bond. Fix by bond. Pattern side to dmlcd cn803 2pin ● dmlcd circuit board component side component side note: see parts list for details of circuit board component parts. Usb (am...

  • Page 21

    21 dgx-220/ypg-225 dmlcd : 2na-wg23540 pb (amjk 6/6) : 2na-wg23590 twl,twr (pn 4/5, 5/5) : 2na-wg23620 ● dmlcd circuit board pattern side ● pb (amjk 6/6) circuit board component side to pn 3/5(pnl)-cn785 pitch bend to amjk 1/6(am)-cn553 to amjk 3/6(usb)-cn558 (solderd) ● twl (pn 4/5, 5/5) circuit bo...

  • Page 22

    22 dgx-220/ypg-225 ● am (amjk 1/6) circuit board note: see parts list for details of circuit board component parts. Am (amjk 1/6) : 2na-wg23590 amjk 4/6 : 2na-wg23590 amjk 5/6 : 2na-wg23590 component side to amjk 4/6-cn552 to pn 3/5-gnd to pn 4/5,5/5(twl) to amjk 5/6-cn154 to woofer l to batteries d...

  • Page 23

    23 dgx-220/ypg-225 ● pnl(pn 3/5) circuit board component side note: see parts list for details of circuit board component parts. Pnl (pn 3/5): 2na-wg23620 to dmlcd-cn703 lesson st ar t lesson r lesson l function song a song 5 song 4 song 3 song 2 song 1 song reg st ar t/ st op sync st ar t sync st o...

  • Page 24

    24 dgx-220/ypg-225 ● pn 2/5 circuit board ● pnr (pn 1/5) circuit board component side component side note: see parts list for details of circuit board component parts. Pnr (pn 1/5) : 2na-wg23620 pn 2/5 : 2na-wg23620 to pn 1/5(pnr)-cn782 data entry to dmlcd-cn701 to pn 2/5-cn783 bank memor y regist 1...

  • Page 25

    25 dgx-220/ypg-225 ● mk-76h circuit board component side a a' to mk-76l-cn3 to dmlcd-cn405 a a' b b' b b' note: see parts list for details of circuit board component parts..

  • Page 26

    26 dgx-220/ypg-225 ● mk-76h circuit board patterm side note: see parts list for details of circuit board component parts. C c' c c' d d' d d'.

  • Page 27

    27 dgx-220/ypg-225 ● mk-76l circuit board component side e e' e e' f f' f f' to mk-76h-cn2 to dmlcd-cn404 to dmlcd-cn401 note: see parts list for details of circuit board component parts..

  • Page 28

    28 dgx-220/ypg-225 g g' g g' h h' h h' ● mk-76l circuit board patterm side note: see parts list for details of circuit board component parts..

  • Page 29: ■ Test Program

    29 dgx-220/ypg-225 ■ test program a. Preparation 1) pa-5d or pa-51(ac adaptor) is used. 2) measuring instruments: frequency counter, level meter (with jis-c filter) note: connect a stereo plug to the [phones/output] jack at 33 ohms. 3) jigs: foot switch (fc-4 or fc-5), usb cable, usb-midi driver(*1)...

  • Page 30

    30 dgx-220/ypg-225 test descriptions, judgment criteria lcd display test no. 6 11 13 -- -- 14 15 20 21 28 29 31 33 006 fromchk1 011 tg1 chk 013 pit chk -- -- 014 output r 015 output l 020 sw chk 021 a.Ledchk 028 lcd on 029 lcd off 031 pd1 chk 033 pb chk checks the flash rom that is connected to cpu ...

  • Page 31

    31 dgx-220/ypg-225 test descriptions, judgment criteria lcd display test no. * note: as for the test no.41 - 45, it takes time. If you want to skip them, press the [+/yes] button several times to go to the test no.47 (factory). 37 41 42 45 47 48 -- 037 midi chk 041 rom chk2 042 ram chk2 045 fromchk2...

  • Page 32

    32 dgx-220/ypg-225 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 dial up dial down p.A.T. Music database function lesson l lesson r lesson start metronome tempo/tap song rec song 1 song 2 song 3 song 4 song 5...

  • Page 33: ■ Initialization

    33 dgx-220/ypg-225 ■ initialization when you execute the flash clear operation, song data you have purchased will also be cleared. Be sure to save data you want to keep to a computer. To clear song data and style files that have been transferred to the internal flash memory from a computer, turn the...

  • Page 34: ■ User Data Backup

    34 dgx-220/ypg-225 ■ user data backup to backup user data to external devices, use the "musicsoft downloader (bundled software)". You can use the musicsoft downloader to transfer "backup files" including the five user songs stored on the instrument, to a computer. List of data that can be backed up ...

  • Page 35

    35 dgx-220/ypg-225 ■ midi implementation chart prog o 0 - 127 o 0 - 127 change : true # ************** system exclusive o o : song pos. X x common : song sel. X x : tune x x system : clock o o real time: commands o o aux :all sound off x o(120,126,127) :reset all cntrls x o(121) :local on/off x o(12...

  • Page 36: ■ Midi Data Format

    36 dgx-220/ypg-225 ■ midi data format note: 1 by default (factory settings) the instrument ordinarily functions as a 16-channel multi-timbral tone generator, and incoming data does not affect the panel voices or panel settings. How- ever, the midi messages listed below do affect the panel voices, au...

  • Page 37: Parts List

    Contents overall assembly .............................................. 2 lower case assembly ....................................... 5 keyboard assembly ........................................... 7 electrical parts ................................................ 9 parts list a: australian model ...

  • Page 38

    Dgx-220/ypg-225 ■ overall assembly 2 420 300 240 u20 u40 u40 u40 u40 u50 u50 u50 u50 20 600 180 180 740 180 260 250 410 230 230a 340 30 180 40 70 140 180 50 115 60 u30 u10 20 35 600 80 120 125 110 150 90 750a 720 320 710 700 780 750 100 400 400e 400d 400d 400a 400a 10 180 180 230b 180 380 180 180 18...

  • Page 39

    Dgx-220/ypg-225 3 rank : japan only ∗ ∗∗ ∗∗ : new part ref no. Part no. Description remarks qty rank 部 品 名 10 10 20 30 35 40 50 60 70 80 90 100 110 115 120 125 140 150 180 220 220 230 230a 230b 240 250 260 300 320 340 360 380 390 400 400a 400b 400c 400d 400e 410 420 440 440 470 600 700 710 720 740 7...

  • Page 40

    Dgx-220/ypg-225 4 rank : japan only ∗ ∗∗ ∗∗ : new parts ref no. Part no. Description remarks qty rank 部 品 名 u50 wd982400 wh249100 v8029000 wf324900 wg280500 wh324700 x7225a00 x7225a00 x7226a00 nonwoven fabric cloth accessories music rest ac adapter ac adapter japanese guide sheet chinese guide sheet...

  • Page 41

    Dgx-220/ypg-225 5 ■ lower case assembly l40 l40 50 20 50a 40 40a 30 30a 70 70 60 170 170 220 220a 220 220a keyboard assembly see page 7. 10 l30 l20 l70 l60 l80 l60 190 180 190a 180a 180b 180c 190b 190c 200 210 210 l10 lower case sub assembly speaker box l assembly speaker box r assembly 200 200 60 8...

  • Page 42

    Dgx-220/ypg-225 6 rank : japan only ∗ ∗∗ ∗∗ : new parts ref no. Part no. Description remarks qty rank 部 品 名 -- wg292100 -- wc601000 -- wc601400 -- wc601500 -- wc620300 -- -- -- v7060500 v7060700 v7060200 -- va126100 -- v8757500 -- -- -- v8757600 -- -- -- we974500 x2549a00 -- -- wg292100 -- vi104400 ...

  • Page 43

    Dgx-220/ypg-225 7 ■ keyboard assembly 240 240 240 240 110 80 60 20 20 50 10 10 30 70 40 130 220 220 150 mk circuit board assembly 160 170 m20 m10 m50 m30 140 190 196 180 196 180 196 195 196 120 120 90 90 100 lower case assembly.

  • Page 44

    Dgx-220/ypg-225 8 rank : japan only ∗ ∗∗ ∗∗ : new parts ref no. Part no. Description remarks qty rank 部 品 名 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 195 196 220 240 m10 m20 m30 m50 -- v7380300 v7380400 v8678600 v8678700 v8678900 v8679000 v8665900 v8665500 vz271700 v3413400 ...

  • Page 45

    Dgx-220/ypg-225 9 rank : japan only ∗ ∗∗ ∗∗ : new part ref no. Part no. Description remarks qty rank 部 品 名 c103 c104 c104 c105 c106 c107 c107 c551 c551 c551 c552 c552 c552 c557 c557 c558 c558 c559 c560 c560 c561 c561 c562 c562 c563 c563 c563 c564 c564 c564 c565 c565 c565 c566 c566 c566 c569 c569 c57...

  • Page 46

    Dgx-220/ypg-225 10 rank : japan only ∗ ∗∗ ∗∗ : new parts ref no. Part no. Description remarks qty rank 部 品 名 cn154 cn155 cn155 cn551 cn551 cn552 cn552 cn553 cn553 cn554 cn557 cn558 cn558 cn854 cn854 cn855 cn855 d151 d151 d152 d153 ic151 ic551 j151 -153 j851 jk151 jk151 jk551 jk551 jk854 jk854 jk855 ...

  • Page 47

    Dgx-220/ypg-225 11 rank : japan only ∗ ∗∗ ∗∗ : new part ref no. Part no. Description remarks qty rank 部 品 名 h558a wh560 wh854 wh855 wh856 wh857 wh858 c101 c102 c103 c104 c105 c106 c107 c108 c109 c110 c111 c112 -114 c201 -205 c207 -216 c301 -304 c305 c306 c307 c308 c309 c310 c311 c312 -326 c327 c328 ...

  • Page 48

    Dgx-220/ypg-225 12 rank : japan only ∗ ∗∗ ∗∗ : new parts ref no. Part no. Description remarks qty rank 部 品 名 c725 c801 c802 c804 c805 c806 c807 c808 c809 c810 c812 c815 -817 c901 -950 cn101 cn401 cn404 cn405 cn701 cn703 cn802 cn803 d701 d804 -807 ic101 ic102 ic103 ic203 ic204 ic204 ic204 ic206 ic206...

  • Page 49

    Dgx-220/ypg-225 13 rank : japan only ∗ ∗∗ ∗∗ : new part ref no. Part no. Description remarks qty rank 部 品 名 r402 r501 r503 -514 r515 r516 r517 r518 r601 r602 r603 r604 r605 -609 r610 r701 -704 r705 -712 r713 -722 r723 r724 r726 r729 -732 r737 -745 r747 -754 r756 r759 r801 r802 r803 r806 -809 r810 r8...

  • Page 50

    Dgx-220/ypg-225 14 rank : japan only ∗ ∗∗ ∗∗ : new parts ref no. Part no. Description remarks qty rank 部 品 名 * * * * * * * * * tr802 x301 x801 x801 10 cn01 cn02 d067 -152 10 cn03 cn04 cn05 d001 -066 cn781 cn781 cn782 cn782 cn783 cn783 cn784 cn784 cn785 d781 d781 d782 d782 d783 d783 d784 d784 ec781 l...

  • Page 51

    1 2 3 4 5 6 7 8 9 10 ■ dgx-220/ypg-225 overall circuit diagram (dmlcd) dgx-220/ypg-225 dgx-220/ypg-225 dgx-220/ypg-225 （セ） ：ceramic capacitor note: see parts list for details of circuit board component parts. ■ warning components having special characteristics are marked and must be replaced with pa...

  • Page 52

    1 2 3 4 5 6 7 8 9 10 ■ dgx-220/ypg-225 overall circuit diagram (am(amjk 1/6), amjk 4/6, amjk 5/6, mk-76h, mk-76l, pb(amjk 6/6), pn 2/5, pnl(pn 3/5), pnr(pn 1/5), twl(pn4/5, 5/5), twr(pn 4/5, 5/5), usb(amjk 3/6)) dgx-220/ypg-225 dgx-220/ypg-225 dgx-220/ypg-225 note: see parts list for details of circ...