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Yamaha AG-Stomp Service Manual

Other manuals for AG-Stomp: Owner's Manual, Patch List
Manual is about: ACOUSTIC GUITAR PRE-AMPLIFIER

Summary of AG-Stomp

  • Page 1

    Ag-stomp 1 service manual ga 011589 1.507k-926 printed in japan 2001.7 hamamatsu, japan acoustic guitar pre-amplifier contents specifications ................................................ 3/4 panel layout .................................... 5 block diagram ............................ 8 circuit ...

  • Page 2: Warning

    Ag-stomp 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 h...

  • Page 3: Specifications

    Ag-stomp 3 specifications digital section • full digital signal processing • mic simulator: 8 types • feedback reduction: 5-band • digital effects • limiter • digital chorus, digital delay • hall reverb, room reverb, plate reverb • external controller function (exp pedal/midi): 8 controllers/ parame...

  • Page 4

    Ag-stomp 4.

  • Page 5: Panel Layout

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

  • Page 6

    Ag-stomp 6 13 14 15 16 17 18 19 20 21 22 23 pre-ampsection 7 8 9 10 11 12 mic type select switch (mic type) blend control (blend/stereo) volume tone controls output level control shift button limiter button level feedback reduction buttons frequency control (freq) depth control chorus/delay effect b...

  • Page 7

    Ag-stomp 7 26 27 28 29 30 31 32 33 34 35 36 power switch (stand-by on/off) power adaptor jack (ac in 12v 1a) guitar power supply switch midi out jack midi in jack digital output jack (digital out) exp. Pedal jack headphone jack (phones) output jacks (output r, l/mono) input jack input mute switch @4...

  • Page 8: Block Diagram

    Ag-stomp 8 block diagram ic1 x2 x1 ic2,ic3 ic8 ic101 w101 cn301 cn101 cn301 cn w102 3 1 3 7 4 2 1 ic102 2 1 ic102 6 7 ic104 5 6 3 4 26 27 ic10,ic11 pb0~pb7, sw-r0~r3 ic12 dout 16 (dm1/2-cn1) (pn1/2-cn304) (dm1/2-cn3) (pn1/2-cn302) an0~an3, select-a, select-b dm pn a a' pn 2/2 pn 1/2 1/2 1/2 dm 2/2.

  • Page 9

    Ag-stomp 9 kec-54233 ic112, ic113, ic114 ic105 output output ic105 ic106 ic106 ic103 5 7 3 1 3 1 3 1 6 7 -1 ic103 6 7 2 3 1 2 3 1 2 3 1 2 3 1 15,17 cn301 1 cn301 cn101 sw-100, sw-line (dm1/2-cn2) (pn1/2-cn303) led-mod led-rev, sw-010 led-foot, sw-001 rxdo, txdo a a' pn 2/2 pn 1/2.

  • Page 10: Circuit Board Layout

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

  • Page 11: Wiring

    Ag-stomp 11 wiring 1/2 2/2 (v611470) (v610850) (v611460) (v611450) cn301 cn304 cn1 cn2 cn3 cn310 cn309 cn308 cn307 cn303 cn101 w101 w102 cn302 cn305 cn306 (v611480) pn 2/2 1/2 dm dm pn note) when installing the dm circuit board, use care not to have the wire assembly caught by the bottom case. Cnb-v...

  • Page 12: Disassembly Procedure

    Ag-stomp 12 disassembly procedure fig.1 [30]:bind head tapping screw-b 3.0x8 mfzn2bl (ep600190) 2. Dm circuit board (manhour requirement: 15 min.) 2-1. Remove the bottom case. (see procedure 1.) 2-2. Dm1/2 circuit board (manhour requirement: 10 min.) remove the one (1) screw marked [t110a], three (3...

  • Page 13

    Ag-stomp 13 hexagonal nut hexagonal nut 1/2 [t110] [t80] [t80] [t110] shield film pn 2/2 pn fig.2 fig.3 [t80]:flat washer 12x17 0.5 mfni33 (v7407400) [t110]:bind head tapping screw-b 3.0x8 mfzn2bl (ep600190) [t70]:washer 9.0 mfzn2y (et800150) [t110]:bind head tapping screw-b 3.0x8 mfzn2bl (ep600190)...

  • Page 14

    Ag-stomp 14 fig.4 4. Heat sink (manhour requirement: 25 min.) 4-1. Remove the bottom case. (see procedure 1.) 4-2. Remove the dm circuit board. (see procedure 2.) 4-3. 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 ic1...

  • Page 15: Lsi Pin Description

    Ag-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

    Ag-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

    Ag-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

    Ag-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

    Ag-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

    Ag-stomp 20 to pn1/2-c cn101: to pn1/2-cn301 a a' input mono/trs for power supply digitalout coaxial circuit boards dm 2/2 circuit board dm 1/2 circuit board component side.

  • Page 21

    21 ag-stomp component side to pn1/2-cn304 to pn1/2-cn303 to pn1/2-cn302 a a' digitalout coaxial power supply on/off cna-v717790 2.

  • Page 22

    Ag-stomp 22 a a' dm 1/2 circuit board.

  • Page 23

    23 ag-stomp pattern side a a' dm 2/2 circuit board pattern side.

  • Page 24

    Ag-stomp 24 to pn2/2-cn306 to dm1/2-cn3 a a' a a' pn 1/2 circuit board pn 2/2 circuit board pn: cna-v776560 ld302, ld303, ld304 and ld306 installation anode.

  • Page 25

    25 ag-stomp component side component side 3 to dm1/2-cn2 to dm1/2-cn1 to dm1/2-cn103 a a' a a'.

  • Page 26

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

  • Page 27

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

  • Page 28: Test Program

    Ag-stomp 28 test program 1 1 2 3 7 8 4 2 3 6 5 a. Connection of terminals • input monaural input • out l/mono balance output (rl 47k Ω ) • out r balance output (rl 47k Ω ) • head phones stereo output (rl 33 Ω ) • exp. Pedal fc7 or connect vr of b50k. Jk pin 1: min of vr jk pin 2: max of vr jk pin 3:...

  • Page 29

    29 ag-stomp p q u i o !0 !1 !2 !3 w e r t !4 y fc7 foot controller 1: sw check (1) using the up and down switches, select “1”. (this step can be skipped if “1” is already selected.) (2) press the store switch. (3) starting with the up switch, press each switch whose led lights up one after another. ...

  • Page 30

    Ag-stomp 30 (11) push in the exp. Pedal. !4 • all led segments light up and go out, and then the checking proceeds to midi check. • if vr, sw or exp pedal is not set at its center position, checking will result in an error and e. 0 will appear at the left end of led. In such case, set it to the cent...

  • Page 31

    31 ag-stomp 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 32: Error Messages

    Ag-stomp 32 error messages if an error occurs during operation, one of the following error message numbers will appear in the display. Stop operation of the ag-stomp and follow one of the solutions described below. E1 : midi receive buffer full cause: too much midi data is being received and the buf...

  • Page 33

    33 ag-stomp yamaha [ acoustic guitar pre amplifier ] date:1-may-2001 model ag stomp midi implementation chart version : 1.0 +----------------------------------------------------------------------+ : : transmitted : recognized : remarks : : function ... : : : : :-------------------+----------------+-...

  • Page 34: 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 35: Overall Assembly

    Ag-stomp 2 overall assembly 40 70 t50 t60 t120 t110 t20 t10 t170 t100 t110 t110 t140 t150 t160 t130 10 20 30 100 t40b t80 t30 t70 t90 60 80 50 t40a.

  • Page 36

    Ag-stomp 3 : new parts ref no. Part no. Description remarks qty rank rank: japan only * * * * * * * * * overall assembly ag-stomp overall assembly (v698510) 10 top cover assembly (v698560) 20 bottom case 30 bind head tapping screw-b 3.0x8 mfzn2bl 6 01 40 knob mic,balance,volume,bass, 7 02 middle,tre...

  • Page 37: Electrical Parts

    Ag-stomp 4 : new parts ref no. Part no. Description remarks qty rank rank: japan only * * * * electrical parts electrical parts circuit board dm dm1/2,dm2/2 (xz869b0) circuit board pn1/2 (v776560)(xy900b0) circuit board pn2/2 (v776560)(xy900b0) circuit board dm dm1/2,dm2/2 (xz869b0) heat sink (v5734...

  • Page 38

    Ag-stomp 5 : new parts ref no. Part no. Description remarks qty rank rank: japan only c133 electrolytic cap. 10.00 35.0v 01 c134 ceramic capacitor(chip) 22p 50v j c135 electrolytic cap.-bp 47.00 25.0v c136 ceramic capacitor(chip) 1000p 50v k c137 electrolytic cap. 100.00 25.0v 01 c138 electrolytic c...

  • Page 39

    Ag-stomp 6 : new parts ref no. Part no. Description remarks qty rank rank: japan only ic7 ic 74hc08dt and 01 ic8 ic yss910-s dsp6 10 ic9 ic upc29m33t-e1 3.3v regulator 3.3v 03 ic10 ic msm514260c-60js 4m 07 ic10 ic msm514260e-60js 4m ic10 ic s1n42t60u6s000b 4m 08 ic11 ic msm514260c-60js 4m 07 ic11 ic...

  • Page 40

    Ag-stomp 7 : new parts ref no. Part no. Description remarks qty rank rank: japan only r31 carbon resistor(chip) 47 0.1 j r32 carbon resistor(chip) 75 0.1 j r101 carbon resistor(chip) 10k 0.1 j r102 carbon resistor(chip) 1.0m 0.1 j r103 carbon resistor(chip) 4.7k 0.1 j r104 carbon resistor(chip) 33 0...

  • Page 41

    Ag-stomp 8 : new parts ref no. Part no. Description remarks qty rank rank: japan only * * * * * * r170 carbon resistor(chip) 4.7k 0.1 j r171 carbon resistor(chip) 4.7k 0.1 j r172 metal oxide film resistor 220 1w j r173 metal oxide film resistor 220 1w j r174 carbon resistor(chip) 100k 0.1 j r175 car...

  • Page 42

    Ag-stomp 9 : new parts ref no. Part no. Description remarks qty rank rank: japan only -367 carbon resistor(chip) 1.0k 0.1 j r368 carbon resistor(chip) 10k 0.1 j r369 carbon resistor(chip) 10k 0.1 j r370 carbon resistor(chip) 560 0.1 j -374 carbon resistor(chip) 560 0.1 j r376 carbon resistor(chip) 0...

  • Page 43

    Ag-stomp 9 8 7 6 5 4 3 l k j i h f g e d c b a l a k j i h g f e d c b 1 2 ag-stomp ag-stomp overall circuit diagram 1/3 (pn 1/2, pn 2/2) ag-stomp 2/2 foot sw1 foot sw2 foot sw3 foot sw bank 1 2 3 bank mic type blend stereo volume bass middle treble presence limiter level feedback reduction chorus/d...

  • Page 44

    Ag-stomp 9 2 3 4 5 6 7 8 1 l k j i h f g e d c b a l a k j i h g f e d c b ag-stomp ag-stomp ag-stomp overall circuit diagram 2/3 (dm) opamp opamp opamp inverter to pn1/2-cn301 adc & dac opamp opamp opamp opamp opamp opamp regulator b.Counter regulator d-ff and inverter shift registant regulator reg...

  • Page 45

    Ag-stomp 9 8 7 6 5 4 3 l k j i h f g e d c b a l a k j i h g f e d c b 1 2 ag-stomp ag-stomp overall circuit diagram 3/3 (dm) ag-stomp sram sram assp and dsp6 dram dram flash rom or or or or or and and and regulator inverter buffer buffer buffer buffer photo coupler cpu to pn1/2-cn304 to pn1/2-cn303...