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3 7 63 1515 0
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L 13942296513
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This document is printed on chlorine free (ECF) paper with soy ink.
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SERVICE MANUAL

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CONTENTS
SPECIFICATIONS .................................................................. 3/4
BLOCK DIAGRAM .................................................................... 5
PANEL LAYOUT ........................................................................ 6
UNIT LAYOUT and WIRING ...................................................... 8
DISASSEMBLY PROCEDURE ............................................... 10
LSI PIN DESCRIPTION .......................................................... 13
IC BLOCK DIAGRAM .............................................................. 15
CIRCUIT BOARDS ................................................................. 18
TEST PROGRAM .............................................................. 28/44
ERROR MESSAGES ......................................................... 60/62
TROUBLESHOOTING ....................................................... 64/67
MIDI IMPLEMENTATION CHART ........................................... 70
PARTS LIST
OVERALL CIRCUIT DIAGRAM
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1.932K-596 K
Printed in Japan '01.01
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Summary of Contents for Yamaha DEXTREME

  • Page 1: Table Of Contents

    http://www.xiaoyu163.com 3 7 63 1515 0 SERVICE MANUAL L 13942296513 CONTENTS SPECIFICATIONS ..............3/4 BLOCK DIAGRAM ..............5 PANEL LAYOUT ................ 6 UNIT LAYOUT and WIRING ............8 DISASSEMBLY PROCEDURE ..........10 LSI PIN DESCRIPTION ............13 IC BLOCK DIAGRAM .............. 15 CIRCUIT BOARDS ..............
  • Page 2: Http://Www.xiaoyu163.Com

    IMPORTANT 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 understood by the users, and have therefore not been restated.
  • Page 3: Specifications

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 SPECIFICATIONS Tone Generator Display 40 × 2 characters Backlit LCD 16-bit AWM2(PCM) 3 digits 7 segments LED Wave Memory 14 operation LEDs DRAM16 Mbit × 2 (max47sec@44.1 kHz) Memory Card Poylphony SmartMedia™, 3.3 V card used only Maximum of 64 notes Input and Output Parts...
  • Page 4 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 5 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 WROM WROM DRAM IC15 SSFDC ASSP TO HOST IC108 IC114 IC106 MB3790 MIDI PC2 PC1 Mac MIDI IN MAIN MIDI OUT IC18, 19 SRAM SRAM SRAM SRAM WROM WROM DRAM MIDI THRU 256K 256K...
  • Page 6: Panel Layout

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 PANEL LAYOUT Front Panel SNARE TOM 1 TOM 2 TOM 3 TOM 4 RIDE CRASH HI-HAT KICK 11 12 13 14 15 16 INPUT ATTENUATION DC IN 12V STANDBY CONTRAST HOST SELECT TO HOST FOOT SW HI-HAT CONTROL...
  • Page 7 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 Rear Panel t ! 4 L MONO t u t i INDIVIDUAL OUTPUT t ! 0 OUTPUT t ! 1 t ! 2 THRU t ! 3 MIDI MIDI PC-2 PC-1 STANDBY DC IN 12V HI-HAT FOOT SW TO HOST...
  • Page 8: Unit Layout And Wiring

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 UNIT LAYOUT and WIRING Front View Top case SNARE TOM 1 TOM 2 TOM 3 TOM 4 RIDE CRASH HI-HAT KICK 11 12 13 14 15 16 INPUT ATTENUATION DC IN 12V STANDBY CONTRAST HOST SELECT TO HOST...
  • Page 9 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 Inside View 2 DM circuit board assembly to LCD Assembly to LCD Assembly to PN-CN705 to JK-CN508 CN204 CN102 to JK-CN507 to PN-CN707 CN202 to PN-CN703 CN103 CN205 CN206 to JK-CN302 to JK-CN506 Inside View 3 L 13942296513 PN circuit board assembly...
  • Page 10: Disassembly Procedure

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 DISASSEMBLY PROCEDURE Bottom Case (time required: about 1 minutes) 1-1 Remove the seven (7) screws marked [240] and the two (2) screws marked [300]. The bottom case can then be removed. (Fig. 1) [240] Bottom case [300]...
  • Page 11: 3-3 Remove The Two (2) Screws Marked [160] And The Four

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 JK Circuit Board (time required: about 4 minutes) 3-1 Remove the bottom case. (See Procedure 1.) 3-2 Remove the rear panel. (See Procedure 2.) 3-3 Remove the two (2) screws marked [160] and the four (4) PCB holder.
  • Page 12 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 LCD Assembly (time required: about 8 minutes) PN Circuit Board (time required: about 9 minutes) 5-1 Remove the bottom case. (See Procedure 1.) 6-1 Remove the bottom case. (See Procedure 1.) 5-2 Remove the rear panel. (See Procedure 2.) 6-2 Remove the rear panel.
  • Page 13: Lsi Pin Description

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 LSI PIN DESCRIPTION HD6412352-F20 (XW832A00) CPU DM: IC001, 101 NAME FUNCTION NAME FUNCTION PG3//CS1 Port G Bus Control Ground PG4//CS0 Port G Bus Control Port 6 P60//DREQ0//CS4 Ground Ground Ground Power Supply P61//TEND0//CS5 PC0/A0 P62//DREQ1 Port 6...
  • Page 14 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 TC203C760HF-002 (XS725A00) SWP30B (AWM Tone Generator coped with MEG) Standard Wave Processor DM: IC105 NAME FUNCTION NAME FUNCTION (Ground) (Ground) HMD0 HMD1 HMD2 HMD3 HMD4 Address bus of internal register HMD5 HMD6 Wave memory data bus (Upper 16 bits) HMD7 HMD8 HMD9...
  • Page 15: Ic Block Diagram

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 JG710069 (XM326B00) DDE1 (DAC Dynamic Range Enhancer) JK: IC501-503 NAME FUNCTION NAME FUNCTION Master clock SH 0 N.C. Sync signal SH 1 N.C. MIN 1 Signal input Latch enable for DAC MIN 0 Signal input DACO 0 Output (DAC)
  • Page 16 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 NJM2902M-T1 (XR562A00) MM74HC74ASJX (XY153A00) NJM2904M (XV190A00) Dual Operational Amplifier Dual D-Type Flip-Flop Dual Operational Amplifier JK: IC307-314, 316 DM: IC012, 213-217 JK: IC317 A OUTPUT D OUTPUT +DC Voltage Output A 1CLR Supply A -INPUT D -INPUT Inverting...
  • Page 17 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 TC7S32F (XM588A00) TC74HC4052AF (XS790A00) TC74VHC04F (XM332A00) Hex Inverter DM: IC014 JK: IC303-304 DM: IC207 IN A IN B Y-COM Y-COM X-COM X-COM TC74VHC14F-EL (XW876A00) TC74VHCT245AF (XV242A00) TC74VHC273F(EL) (XY254A00) Hex Inverter Dual D-Type Flip-Flop Octal 3-State Bus Transceiver DM: IC204 JK: IC318...
  • Page 18: Circuit Boards

    DEXTREME DEXTREME 3 7 6 3 1 5 1 5 0 CIRCUIT BOARDS CONTENTS JK Circuit board V618510 (XY927B0) ......... Page 18 DM Circuit board V618500 (XY926B0) ......... Page 22 PN Circuit board V618520 (XY928B0) ......... Page 26 JK Circuit board...
  • Page 19 DEXTREME DEXTREME 3 7 6 3 1 5 1 5 0 JK Circuit board 1 3 9 4 2 2 9 6 5 1 3 Pattern side w w w u 1 6 3 ENA-V618510 0 http://www.xiaoyu163.com...
  • Page 20 DEXTREME DEXTREME 3 7 6 3 1 5 1 5 0 DM Circuit board HI-HAT FOOT SW TO HOST HOST SELECT CONTRAST STANDBY/ON DC IN12 V CONTROL to LCD Assembly 1 3 9 4 2 2 9 6 5 1 3...
  • Page 21 DEXTREME DEXTREME 3 7 6 3 1 5 1 5 0 DM Circuit board MIDI THRU 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Pattern side ENA-V618500 0 http://www.xiaoyu163.com...
  • Page 22 DEXTREME DEXTREME 3 7 6 3 1 5 1 5 0 PN Circuit board OUTPUT INDIV. OUT L/MONO 1 3 9 4 2 2 9 6 5 1 3 to DM-CN6 w w w u 1 6 3 Component Side ENA-V618520 0 http://www.xiaoyu163.com...
  • Page 23: Test Program

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 TEST PROGRAM Test No. Title Judgment criteria, etc. MEASURING CONDITION TEST ENTRY CARRYING ON THE TEST AND THE TEST AT THE TIME OF FAIL TEST ITEM C-01. MAIN ROM Automatic test C-02. SUB ROM Automatic test C-03.
  • Page 24 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 Test No. Title Judgment criteria, etc. C-51. TRIGGER SW IN 5 Check the trigger switch for ON/ OFF operation. C-52. ATTENUATION SW H IN 01 Input looped signals from PHONES. (Level) C-53. ATTENUATION SW H IN 02 Input looped signals from PHONES.
  • Page 25 3 7 63 1515 0 A. TEST ENTRY Activate power on the main unit by pressing the [PLAY] + [EXIT/ NO] keys at the same time. [Initial screen] YAMAHA DRUM TRIGGER MODULE DTXTREME After a while, the following indication appears. [DLAG 1]...
  • Page 26 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 B. CARRYING ON THE TEST AND THE TEST AT THE C- 02. SUB ROM TIME OF FAIL 1. After setting each parameter in “A. TEST ENTRY”, [Initial indication] press the “ENTER/ YES” key. The following appears. SUB ROM [Indication screen] MAIN ROM...
  • Page 27 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 C- 04. SUB SRAM [Content of FAIL judgment] None [Initial indication] [Completing the test] OK: Go on to the next test. NG: For handling the FAIL judgment, see “B. SUB SRAM CARRYING ON THE TEST”. C- 06.
  • Page 28 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 In case of NG [Indication of judgment result] In case of OK SUB WAVE ROM 2 SUB WAVE ROM 4 FAIL (XXXX) Checksum in case of XXXX [Content of FAIL judgment] In case of NG None [Completing the test] SUB WAVE ROM 4...
  • Page 29 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 C- 11. SUB WAVE DRAM 1 [Completing the test] OK: Go on to the next test. [Initial indication] NG: For handling the FAIL judgment, see “B. CARRYING ON THE TEST”. 11 SUB WAVE DRAM 1 C- 13.
  • Page 30 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 In case of NG [Test method] Move each volume of CLICK ~ MISC up and down to the limit to display the figure 00 ~ 99 at the bottom of 14 SMART MEDIA LCD.
  • Page 31 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 [Test method] [Completing the test] 1. Check that the LEDs corresponding to the following OK: Go on to the next test. panel switches light up in the sequential order below. C- 27. PANEL SW [ RHYTHM / INS] [ BASS / DEL] [ OTHERS]...
  • Page 32 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 [Completing the test] In case of NG: None OK: Go on to the next test. [Content of FAIL judgment] NG: For handling the FAIL judgment, see “B. Working with the switch plug will not even proceed to CARRYING ON THE TEST”.
  • Page 33 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 [Test method] C- 32. ROTARY ENCODER 1 Maximize PHONES VR. Connect the looped signals C- 33. ROTARY ENCODER 2 from PHONES to IN01 (SNARE) using a stereo cable. C- 34. ROTARY ENCODER 3 Take care to cut off DC by installing a capacitor (approx.
  • Page 34 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 C- 48. TRIGGER SW IN 2 [Completing the test] C- 49. TRIGGER SW IN 3 Pressing the [ENTER/ YES] key proceeds to the next t C- 50. TRIGGER SW IN 4 est. For handling the FAIL judgment during the test, see C- 51.
  • Page 35 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 [Initial indication] [Test content] For attenuation switches IN01 ~ IN16, add looped signals from PHONES on the left-hand side (ON and 52 ATTENUATION SW H IN01 upper side of JK board) and check that the inputted waiting signals are being inputted into the CPU at correct gain and correct attenuation level .
  • Page 36 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 [Completing the test] C- 87. PHONES R 1 kHz Pressing the [ENTER/ YES] key proceeds to the next test. [Initial indication] C- 85. OUTPUT R 1 kHz 87 PHONES R [Initial indication] [Test content] 85 OUTPUT R Check that correct signals are being outputted from PHONES (R).
  • Page 37 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 [Test content] C- 96. FACTORY SET Check that the signals inputted from AUX IN are being outputted from PHONES (L/ R) as correct ones. [Initial indication] [Test method] Input the following sine wave (“Check item” below) into 96 FACTORY SET AUX IN (L/ R).
  • Page 38 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 Inspecting the Main Unit for Sound Production Turn off powder once. Then turn it on again and inspect the following in normal mode. In play mode subsequent to exit from test mode, check that the noise level meets the requirements below. (Maximize each volume.) OUTPUT(L/MONO): -75 dBm or less (DIN AUDIO)
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  • Page 55: Error Messages

    Yamaha dealer on replacing the battery. broken. Replace the memory card. In any case, the data stored on the troubled card may be corrupted.
  • Page 56 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 The DTXTREME cannot recognize the specified file (file format). Check if the file is suitable for the DTXTREME and is not corrupted. This message will be shown if you attempt to load a song from the memory card or by receiving bulk data when a preset song is selected (in Drum Kit Play mode).
  • Page 57 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
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  • Page 59: Troubleshooting

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 TROUBLESHOOTING The DTXTREME is Not Making a Sound or a Triggered Sound Make sure the pads and triggers are connected correctly to the input jacks of theDTXTREME. Make sure the connectors from the DTXTREME OUTPUT jack (and NOT the INDIV. OUTjack) are plugged correctly to the input jacks of the amplifier or mixer.
  • Page 60 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 The Triggered Sound is Not Stable (When using accoustic drums) Make sure you have select the correct input type. Try a larger drum. Make sure the trigger pickup (DT series) is securely fastened with new sticky tape. Make sure the cable is securely inserted into the DT10 jack.
  • Page 61 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 The Sound is Too Loud (The Velocity is Permanently Too High) Lower the gain setting. Lower the minimum value of the velocity range. Try another velocity curve. If you are using a sensor made by other manufacturers, it may be sending a large signal. Reset the INPUT A TTENUATION switch on the rear panel.
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  • Page 66 http://www.xiaoyu163.com 3 7 63 1515 0 PARTS LIST CONTENTS OVERALL ASSEMBLY ............... 2 PN CIRCUIT BOARD ASSEMBLY ..........6 ELECTRICAL PARTS ..............8 L 13942296513 Notes: DESTINATION ABBREVIATIONS A: Australian model J: Japanese model B: British model U: U.S.A. model C: Canadian model V: General export model (110V) E: European model...
  • Page 67 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 OVERALL ASSEMBLY Front View SNARE TOM 1 TOM 2 TOM 3 TOM 4 RIDE CRASH HI-HAT KICK 11 12 13 14 15 16 INPUT ATTENUATION DC IN 12V STANDBY CONTRAST HOST SELECT TO HOST FOOT SW HI-HAT CONTROL...
  • Page 68 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 Inside View 1 C View D View E View L 13942296513 InsideView 2 B View A View u163 http://www.xiaoyu163.com...
  • Page 69 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 DM Circuit Board Assembly L 13942296513 JK Circuit Board Assembly 150a u163 150b 150c http://www.xiaoyu163.com...
  • Page 70 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 LCD Assembly REF NO. PART NO. DESCRIPTION REMARKS QTY RANK OVERALL ASSEMBLY DTXTREME Overall Assembly (V618890) ∗ V 6 1 9 3 7 0 0 Top Case Circuit Board Assembly (V619670) EP600250 Bind Head Tapping Screw-B 3.0X8 MFZN2Y ∗...
  • Page 71 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 PN CIRCUIT BOARD ASSEMBLY Front View L 13942296513 Rear View u163 http://www.xiaoyu163.com...
  • Page 72 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK CIRCUIT BOARD ASSEMBLY DTXTREME Circuit Board Assembly (V619670) ∗ V 6 1 8 5 2 0 0 Circuit Board (XY928B0) ∗ CLICK, t , t t, s/ , s s V 6 1 9 4 4 0 0 Knob Switch...
  • Page 73: Electrical Parts

    http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 ELECTRICAL PARTS REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ELECTRICAL PARTS DTXTREME ∗ V 6 1 8 5 2 0 0 Circuit Board (XY928C0) ∗ V 6 1 8 5 0 0 0 Circuit Board (XY926B0) ∗...
  • Page 74 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ∗ R0725 RG005560 Carbon Resistor (chip) 560 0.1 J ∗ -0735 RG005560 Carbon Resistor (chip) 560 0.1 J ∗ R0736 RG205180 Carbon Resistor (chip) 180 1/4 J ∗...
  • Page 75 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK C0038 UF037100 Electrolytic Cap. (chip) 10 16V ∗ C0039 UX145100 Ceramic Capacitor (chip) 0.1000 25V Z ∗ -0044 UX145100 Ceramic Capacitor (chip) 0.1000 25V Z C0045 VD989700 Tantalum Cap.
  • Page 76 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ∗ C0247 UX062100 Ceramic Capacitor (chip) 100P 50V J C0248 UF037100 Electrolytic Cap. (chip) 10 16V ∗ C0249 UX145100 Ceramic Capacitor (chip) 0.1000 25V Z ∗...
  • Page 77 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK IC017 XY537A00 TC74VHC32F(EL) IC018 XW104A00 MM74HC14SJX INVERTER IC019 VN686000 Photo Coupler PC410T IC020 XL093A00 HD74HC08FPEL ∗ IC101 XW832A00 HD6412352 CPU H8S-2352 ∗ IC102 X Z 17 9 1 0 0 SUB ROM 8M IC103 XV411A00...
  • Page 78 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ∗ R0013 RG005100 Carbon Resistor (chip) 100 0.1 J ∗ R0014 RG005100 Carbon Resistor (chip) 100 0.1 J ∗ R0015 RG007100 Carbon Resistor (chip) 10K 0.1 J ∗...
  • Page 79 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ∗ R0128 RG004680 Carbon Resistor (chip) 68 0.1 J ∗ R0129 RG004680 Carbon Resistor (chip) 68 0.1 J ∗ R0130 RG007100 Carbon Resistor (chip) 10K 0.1 J ∗...
  • Page 80 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ∗ RA008 RH045100 Resistor Array 100X4 ∗ -013 RH045100 Resistor Array 100X4 ∗ RA014 RH047100 Resistor Array 10KX4 ∗ RA015 RH045100 Resistor Array 100X4 ∗ RA016 RH045100 Resistor Array...
  • Page 81 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ∗ -0400 UX145100 Ceramic Capacitor (chip) 0.1000 25V Z ∗ C0403 UX063100 Ceramic Capacitor (chip) 1000P 50V K ∗ C0404 UX145100 Ceramic Capacitor (chip) 0.1000 25V Z ∗...
  • Page 82 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK D0301 V T 3 32 9 0 0 Diode 1SS355 TE-17 -0314 V T 3 32 9 0 0 Diode 1SS355 TE-17 DA301 V 3 7 4 9 0 0 0 Diode Array DA204K 2A X2 T146 -356...
  • Page 83 http://www.xiaoyu163.com DTXTREME 3 7 63 1515 0 REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ∗ R0465 RG008220 Carbon Resistor (chip) 220K 0.1 J ∗ -0468 RG008220 Carbon Resistor (chip) 220K 0.1 J ∗ R0469 RG005100 Carbon Resistor (chip) 100 0.1 J ∗...
  • Page 84 http://www.xiaoyu163.com DTXTREME Data Control Knobs to DM-CN102 DC/DC CONVERTER CLICK SNARE ACCOMP REVERB PLAY EXIT ENTER CLILK TRIGGER SNARE TOM1 OP AMP OP AMP TC74VHC32F (EL) KICK INVERTER CHAIN VOICE SHIFT Page Page Sound INVERTER TOM2 HI-HAT SONG EFFECT RHYTHM BASS INSERT DELETE...
  • Page 85 http://www.xiaoyu163.com DTXTREME to LCD Assembly to PN-CN707 to JK-CN505 to JK-CN302 to LCD Assembly CONTRAST LINE DRIVER LNB0509B-812 CH87142V100 SUB ROM 8M TO HOST to PN-CN705 INVERTER HOST SELECT MIDI CPU H8/2352 ASSP MAIN ROM 16M D-FF HTJ-064-04K HI-HAT CONTROL SRAM 256K SRAM 256K CPU H8S-2352...

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