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Yamaha DG-Stomp Service Manual

Other manuals for DG-Stomp: Supplementary Manual, Owner's Manual
Manual is about: GUITAR PRE-AMPLIFIER WITH EFFECTS

Summary of DG-Stomp

  • Page 1

    Dg-stomp 1 service manual ga 011537 20001001-39800 1.57k-786 i.T printed in japan 2000.09 hamamatsu, japan guitar pre-amplifier with effects contents specifications ................................................ 3/4 panel layout .................................... 5 block diagram ...................

  • Page 2: Warning

    Dg-stomp 2 2 impor tant notice this manual has been provided for the use of authorized yamaha retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically yamaha products, are already known and under- stood by the users, and...

  • Page 3: Specifications

    Dg-stomp 3 specifications digital section • full digital signal processing • 8 channel preamp • digital effects • compressor • chorus, flanger, phaser, rotary speaker, tremolo • digital delay, tape echo • spring reverb, hall reverb, plate reverb • tap tempo function (delay time) • speaker simulator ...

  • Page 4

    Dg-stomp 4.

  • Page 5: Panel Layout

    Dg-stomp 5 top panel panel layout 1 2 3 4 5 6 up button (up) down button (down) manual button (manual) utility button (utility) store button (store) display display & main section foot switch section display & main section effect section amp section q w e r t y.

  • Page 6

    Dg-stomp 6 13 14 15 16 17 18 19 20 21 22 23 amp section 7 8 9 10 11 12 amp select switch (lead1-clean2) gain control (gain) master volume (master) tone controls output level control (output) speaker simulator button (sp. Sim) compressor button (comp) compressor knob (comp) modulation group effect bu...

  • Page 7

    Dg-stomp 7 26 27 28 29 30 31 32 33 34 35 power switch (stand-by on/off) power adaptor jack (ac in 12v 700ma) midi out jack midi in jack digital out jack (digital out) exp pedal jack (exp. Pedal) headphones jack (phones) output jacks (output r, l/mono) input jack (input) input level switch (low/high)...

  • Page 8: Block Diagram

    Dg-stomp 8 block diagram ic1 ic2,ic3 ic9 ic8 ic101 3 1 ic102 2 1 ic102 6 7 ic103 2 1 6 ic103 7 ic104 5 6 3 4 26 cn301 cn301 27 ic10,ic11 pb0~pb7, sw-r0~r3 (dm-cn1) (pn-cn304) (dm-cn3) (pn-cn302) an0~an3, select-a, select-b ic308 ic309 2 4 1 dm pn 1/2 pn 2/2 a a' pn 1/2.

  • Page 9

    Dg-stomp 9 kec-54203 ic112 ic113 ic114 ic105 ic105 ic106 ic106 3 1 5 7 3 1 5 7 2 3 1 5 4 1 5 4 1 2 3 1 84 15,17 18, 19, 20 sw-001, sw-010, sw-100, sw-line (dm-cn2) (pn-cn303) led-mod led-rev led-foot txdo, rxdo cld, cin, cck a a' pn 2/2.

  • Page 10: Circuit Board Layout

    Dg-stomp 10 circuit board layout 1/2 1/2 pn dm pn.

  • Page 11: Wiring

    Dg-stomp 11 wiring 1/2 2/2 v610850 v611470 v611460 v611450 cn301 cn304 cn1 cn2 cn3 cn303 cn103 cn302 cn305 cn306 v611480 pn dm pn note) when installing the dm circuit board, use care not to have the wire assembly caught by the bottom case..

  • Page 12: Disassembly Procedure

    Dg-stomp 12 disassembly procedure fig.1 [30]: bind head tapping screw-b 3.0x8 mfzn2bl (ep600190) 1. Bottom case remove the six (6) screws marked [30]. The bottom case can then be removed. (fig. 1) 2. Dm circuit board 2-1. Remove the bottom case. (see procedure 1.) 2-2. Remove the four (4) screws mar...

  • Page 13

    Dg-stomp 13 hexagonal nut hexagonal nut 1/2 [10j] [10j] shield film pn 2/2 pn fig.2 fig.3 [10j]:bind head tapping screw-p 3.0x12 mfzn2bl (vc161100) [10c]: bind head tapping screw-b 3.0x8 mfzn2bl (ep600190) [10e]: hexagonal nut 9.0 12x2 mfni33 (lx200060) 3. Pn circuit boards (1/2, 2/2) 3-1. Remove th...

  • Page 14

    Dg-stomp 14 fig.4 4. Heat sink 4-1. Remove the two (2) screws marked [a-a] from the soldered face of the dm circuit board and the three (3) screws marked [a-b] from ic112, ic113 and ic114. The heat sink can then be removed from the dm circuit board. (fig. 4) [a-a] [a-a] [a-b] ic114 ic113 ic112 heat ...

  • Page 15: Lsi Pin Description

    Dg-stomp 15 lsi pin description pin no. 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 50 i/o o o i i i i i i i i o o o i i o i i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o i/o o o o o o o o o o...

  • Page 16

    Dg-stomp 16 pin no. I/o function name pin no. I/o function name 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 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82...

  • Page 17

    Dg-stomp 17 pin no. I/o function name pin no. I/o function name 1 2 3 4 5 6 7 8 vss mclk dm0 dm1 res wcin din v dd i i i i i i ground master clock input din/bclk/wclk format select dm1,dm0=0,0 dsp,ldsp (64 bit,lsb first) dm1,dm0=0,1stereo,dsp (64 bit,msb first) dm1,dm0=1,0 dsp2 (128 bit,msb first) d...

  • Page 18: Ic Block Diagram

    Dg-stomp 18 ic block diagram mb3790pf(xr967a00) dm: ic4 assp 2 3 4 5 6 7 8 9 10 11 12 16 14 13 c t v bat2 v bat1 alarm2 reset reset alarm1 v out v out v in v in v sense control gnd 590k Ω 240k Ω 1.24v reference voltage power supply circuit s q r 100 Ω sbd 2.65v 2.37v 500 Ω v in v in v out v out 3 µ ...

  • Page 19

    Dg-stomp 19 74hc374dt(xz102a00) pn: ic301~ic307 d-ff 74hc4052dt(xz101a00) pn: ic308, ic309 multiplexer q d q d q d q d ck oe oe oe oe oe oe oe oe q d q d q d q d ck ck ck ck ck ck ck 1 out put control 2 3 4 5 6 7 8 9 10 1q 1d 2d 2q 3q 3d 4d 4q gnd 11 12 13 14 15 16 17 18 19 20 v cc 8q 8d 7d 7q 6q 6d...

  • Page 20: Circuit Boards

    Dg-stomp 20 circuit boards dm circuit board to pn a a' cn101: n.C. Cn103: to pn1/2-cn301 cn102: n.C. Battery vn103500 vn103600(battery holder for vn103500) • notice for back-up battery removal push the battery as shows in figure, then the battery will pop up..

  • Page 21

    21 dg-stomp cn104: n.C. To pn1/2-cn304 to pn1/2-cn303 to pn1/2-cn302 a a' component side dm: cna-v588000 0

  • Page 22

    Dg-stomp 22 a a' dm circuit board.

  • Page 23

    23 dg-stomp a a' pattern side.

  • Page 24

    Dg-stomp 24 to pn2/2-cn306 to dm-cn3 a a' a a' pn 1/2 circuit board pn 2/2 circuit board pn: cna-v587990 0 ld302, ld303, ld304 and ld306 installation anode.

  • Page 25

    25 dg-stomp to dm-cn2 to dm-cn1 to dm-cn103 a a' a a' component side component side.

  • Page 26

    Dg-stomp 26 to sw to sw a a' a a' pn 1/2 circuit board pn 2/2 circuit board.

  • Page 27

    27 dg-stomp to pn1/2-cn305 to sw to sw sw a a' a a' pattern side pattern side.

  • Page 28: Test Program

    Dg-stomp 28 test program a. Connect each terminal as follows • input monaural input • out l/mono monaural output (rl47kohm) • out r monaural output (rl47kohm) • head phones stereo output (323ohm each) • exp. Pedal connect vr of b50k. Pin 1 of jk: min of vr, pin 2 of jk: max of vr, pin3 of jk: center...

  • Page 29

    29 dg-stomp 1: sw check • using the up and down switches, select “1” and then press the store switch. • starting with the up switch, press the switches whose led lights up one after another. After “sp.Sim”, “bank”, “3”, “2” and “1”, all led segments should light up and then go out. • numbers (0 to 2...

  • Page 30

    Dg-stomp 30 1. Input sensitivity 2. Input sensitivity 3. Input sensitivity 4. Input sensitivity 5. Input sensitivity 6. Input sensitivity 7. Input sensitivity 8. Input sensitivity 9. Input sensitivity 10. Input sensitivity 11. Input sensitivity 12. Input sensitivity 13. Input sensitivity 14. Input s...

  • Page 31: Error Messages

    31 dg-stomp if an error occurs during operation, one of the following error message numbers will appear on the display. E1 : midi receive buffer full cause: too much midi data is being received by the dg amplifier at one time. Solution: try reducing the amount of data being sent or, break the data i...

  • Page 32

    Dg-stomp 32 yamaha [ guitar pre amplifier with multi effects] date:30-jun-2000 model dg stomp midi implementation chart version : 1.0 +----------------------------------------------------------------------+ : : transmitted : recognized : remarks : : function ... : : : : :-------------------+--------...

  • Page 33: Parts List

    Warning components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. Notes : destination abbreviations the numbers “qty” show quantities for each unit. The parts with “--” in “part no.” are not available as spare parts...

  • Page 34: Overall Assembly

    Dg-stomp 2 overall assembly 40 70 10e 10f 10c 10h 10 10i 10g 10d 10c 20 30 100 10j p10-2 p90 p50 p40 p30 p60 p20 10d-2 10d-1 10b 10a 60 80 50 p10-1.

  • Page 35

    Dg-stomp 3 : new parts ref no. Part no. Description remarks qty rank rank: japan only * * * * * * * * * * * * overall assembly dg-stomp overall assembly (v573350) 10 top cover assembly (v573420) 10a top cover 10b meter cover 10c bind head tapping screw-b 3.0x8 mfzn2bl 7 01 10d circuit board assembly...

  • Page 36: Electrical Parts

    Dg-stomp 4 : new parts ref no. Part no. Description remarks qty rank rank: japan only * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * electrical parts elctric parts circuit board dm circuit board circuit board (foot sw sheet) circuit board dm heat ...

  • Page 37

    Dg-stomp 5 : new parts ref no. Part no. Description remarks qty rank rank: japan only c135 electrolytic cap.-bp 47.00 25.0v c136 electrolytic cap.(chip) 1000p 50v k c137 electrolytic cap.-bp 10.00 35.0v c138 electrolytic cap.(chip) 22p 50v j c139 electrolytic cap. 10.00 35.0v 01 c140 electrolytic ca...

  • Page 38

    Dg-stomp 6 : new parts ref no. Part no. Description remarks qty rank rank: japan only ic10 ic sdm4260clu-6s 4m 08 ic11 ic msm514260c-60js 4m 07 ic11 ic sdm4260clu-6s 4m 08 ic12 ic hd6413002fp16 cpu 9 ic13 photo coupler pc410t 04 ic13 photo coupler hcpl-m600 04 ic14 ic 74hc244dt bus buffer ic15 ic 74...

  • Page 39

    Dg-stomp 7 : new parts ref no. Part no. Description remarks qty rank rank: japan only r105 carbon resistor (chip) 22k 0.1 j r106 carbon resistor (chip) 12k 0.1 j r108 carbon resistor (chip) 10k 0.1 f r109 carbon resistor (chip) 22k 0.1 f r110 carbon resistor (chip) 3.3k 0.1 f r111 carbon resistor (c...

  • Page 40

    Dg-stomp 8 : new parts ref no. Part no. Description remarks qty rank rank: japan only * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * x1 quartz crystal unit 30.00m hz doc-49s2 06 x2 quartz crystal unit at-49/12.0000mhz 03 x101 quartz crystal unit 24.576m af3817cqa 03 zd101 zener ...

  • Page 41

    L k j i h g f e d c b a 1 2 3 4 5 6 7 8 9 10 11 12 dg-stomp m n o p q 1 2 3 4 5 6 7 8 9 10 11 12 q p o n m l k j i h g f e d c b a dg-stomp dg-stomp note : see parts list for details of circuit board component parts. Kec-54202 dg-stomp overall circuit diagram 1/2 (dm) 256k ram 256k ram or or or or o...

  • Page 42

    L k j i h g f e d c b a 1 2 3 4 5 6 7 8 9 10 11 12 m n o p q 1 2 3 4 5 6 7 8 9 10 11 12 q p o n m l k j i h g f e d c b a dg-stomp dg-stomp dg-stomp dg-stomp overall circuit diagram 2/2 (pn 1/2, pn 2/2) 1/2 kec-54201 multiplexer multiplexer to dm-cn3 to dm-cn103 d-ff d-ff d-ff d-ff d-ff d-ff d-ff to...