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SERVICE MANUAL
PEDAL 2
PEDAL 1
CONTENTS
SPECIFICATIONS .............................................................................. 3
PANEL LAYOUT .................................................................................. 4
DIMENSION ........................................................................................ 5
CIRCUIT BOARD LAYOUT ................................................................. 6
BLOCK DIAGRAM .............................................................................. 7
DISASSEMBLY PROCEDURE ........................................................... 8
LSI PIN DISCRIPTION ...................................................................... 10
IC BLOCK DIAGRAM ......................................................................... 11
CIRCUIT BOARDS ............................................................................ 11
TEST PROGRAM ............................................................................. 16
MIDI IMPREMENTATION CHART .................................................... 20
PARTS LIST
OVERALL CIRCUIT DIAGRAM
This document is printed on chlorine free (ECF) paper with soy ink.
SK
001660
HAMAMATSU, JAPAN
1.42K-0.935 K
Printed in Japan 2001.05
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Summary of Contents for Yamaha DD-55
- Page 1 All manuals and user guides at all-guides.com SERVICE MANUAL PEDAL 2 PEDAL 1 CONTENTS SPECIFICATIONS ................3 PANEL LAYOUT .................. 4 DIMENSION ..................5 CIRCUIT BOARD LAYOUT ..............6 BLOCK DIAGRAM ................7 DISASSEMBLY PROCEDURE ............8 LSI PIN DISCRIPTION ..............10 IC BLOCK DIAGRAM .................
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Page 2: Important Notice
DD-55 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
Power Consumption 16 W (when using PA-5C power adaptor) Power Supply Adaptor: DC12V (Yamaha PA-5C sold separately) Batteries: Six “C” size, R-14(LR14), or equivalent batter-ies (sold separately) Dimensions (WxDxH) 558 x 355 x 174 mm (22” x 14” x 6” 7/8) Weight 3.8 kg (8 Ibs. -
Page 4: Panel Layout
All manuals and user guides at all-guides.com DD-55 PANEL LAYOUT Front Panel Pedal 2 Pedal 1 !0 !1 Front Panel q DEMO Button ! 0 SONG Button w CLICK Button !1 TEMPO Button e DISPLAY. !2 START/STOP Button r VOLUME [ ], [ ] Buttons... -
Page 5: Side Panel (Left)
All manuals and user guides at all-guides.com DD-55 Side Panel L Side Panel R ! 9 @ 0 Side Panel (Left) Side Panel (Right) !9 DC IN 12V (AC Adaptor) Jack @2 MIDI IN Terminal @0 PHONES/OUTPUT Jack @3 MIDI OUT Terminal... -
Page 6: Circuit Board Layout
All manuals and user guides at all-guides.com DD-55 CIRCUIT BOARD LAYOUT Top view Pad Assembly Lower Case Pad Assembly (L) Speaker(R) Speaker(L) U220 Upper Case... - Page 7 All manuals and user guides at all-guides.com IC710-10 IC750-10 IC790-1 IC710-9 IC750-9 IC790-4 IC710-3 IC750-3 IC710-2 IC790-8 IC750-2 IC790-11...
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Page 8: Disassembly Procedure
All manuals and user guides at all-guides.com DD-55 DISASSEMBLY PROCEDURE Lower Case Assembly (Time required: about 2 min) Remove the sixteen (16) screws marked [80]. The lower case assembly can then be removed. (Fig. 1) Lower Case [80] Lower Case... - Page 9 All manuals and user guides at all-guides.com DD-55 Speaker R Upper Case [130] Speaker L [135] [135] [130] [130]: Binding Head Tapping Screw-B 3.0X8 MFZN2Y (EP600250) [135]: Binding Head Tapping Screw-B 4.0X8 MFZN2Y (EP640410) (Fig. 6) Pad Assembly Pad Assembly (Time required: about 5 min) Remove the lower case assembly.
- Page 10 All manuals and user guides at all-guides.com DD-55 LSI PIN DISCRIPTION HG73C205AFD (XU947C00) SWX00B TONEGENERATOR DD 1/2: IC100 NAME FUNCTION NAME FUNCTION Initial clear CMA3 RFCLKI PLL Clock CMA8 Program address bus PLL Control CMA2 AVDD_PLL Power supply read signal...
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Page 11: Ic Block Diagram
All manuals and user guides at all-guides.com DD-55 uPD63200GS (XM145A00) DAC (Digital to Analog Converter) DD 1/2: IC500 NAME FUNCTION NAME FUNCTION 4/8F 4/8 Fs selection R. REF Channel R voltage reference D. GND Digital ground L. REF Channel L voltage reference... - Page 12 All manuals and user guides at all-guides.com DD-55 DD 1/2 Circuit Board (Component Side) A’ to DD 2/2 CN460 Component Side DD 1/2: 2NA-V707790...
- Page 13 All manuals and user guides at all-guides.com DD-55 to Battery to Speaker L, R A’ Component Side DD 1/2: 2NA-V707790...
- Page 14 All manuals and user guides at all-guides.com DD-55 DD 1/2 Circuit Board (Pattern Side) PAD 1 PAD 2 DEMO CLOCK DRUM1 DRUM2 HAND PERC BREAK /TAP START /STOP REPEAT Pattern Side A’ DD 1/2: 2NA-V707790...
- Page 15 All manuals and user guides at all-guides.com DD-55 PAD 3 PAD 4 PAD 5 PAD 6 PAD 7 VOLUME DRUM2 DRUM3 BACKING SONG TEMPO STANDBY/ON Pattern Side A’ DD 1/2: 2NA-V707790...
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Page 16: Test Program
All manuals and user guides at all-guides.com DD-55 TEST PROGRAM Setting Conditions Requirements for Measurement Before starting to measure the unit, make sure you have the following instrumentations and test jigs: Measuring instruments: Oscilloscope (Input impedance, 1M Ω or more; Loading, 33 Ω) Level indicator (JIS-C curve;... - Page 17 All manuals and user guides at all-guides.com DD-55 Test Items Test No. LED display Test function and judgment criteria 001: Version Displays version for ROM. ROM versions are displayed alternately in the LED. [Displaying the test result] OK, X'XX: ["XX"] NG: ["Err"]...
- Page 18 All manuals and user guides at all-guides.com DD-55 030: Pad Check Checks the PAD. When a pad is tapped, the LED's indicate its identification number and tapping power. [Displaying the test result] Maximum data: 7F Minimum data: 18 031: Pedal 1 Check Checks the [PEDAL 1].
- Page 19 All manuals and user guides at all-guides.com DD-55 Table 1. SW test Item Display Note Display Note A-B REPEAT HI-HAT START/STOP BACKING BRAKE/TAP DEMO SONG CLICK TEMPO HAND PERC. VOLUME BASS VOLUME SNARE DIAL...
- Page 20 All manuals and user guides at all-guides.com DD-55 MIDI IMPREMENTATION CHART YAMAHA [ DIGITAL PERCUSSION ] Date:07-FEB-2001 Model DD-55 MIDI Implementation Chart Version : 1.0 Transmitted Recognized Remarks Function... Basic Default 1O - 16 1 - 16 Channel Changed 1 - 16...
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Page 21: Parts List
All manuals and user guides at all-guides.com DD-55 PARTS LIST CONTENTS OVERALL ASSEMBLY ................... 2 ELECTRICAL PARTS ..................4 Note) DESTINATION ABBREVIATIONS Australian model South African model British model Chinese model Canadian model South-east Asia model German model Taiwan model European model U.S.A. -
Page 22: Overall Assembly
All manuals and user guides at all-guides.com DD-55 OVERALL ASSEMBLY Upper Case Assembly U200 U130 U10c U10b U10a U100 U110 U210 U135 U220 U135 U140 L110 L100 Lower Case Assembly L100 ACCESSORIES: Stick... - Page 23 All manuals and user guides at all-guides.com DD-55 PART NO. DESCRIPTION REMARKS REF NO. QTY RANK OVERALL ASSEMBLY DD55 Overall Assembly J,U,W,C (V740240) Upper Case Assembly (V740450) V 7 4 0 4 6 0 0 Bottom Case Assembly V 7 4 0 6 3 0 0...
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Page 24: Electrical Parts
All manuals and user guides at all-guides.com DD-55 ELECTRICAL PARTS PART NO. DESCRIPTION REMARKS REF NO. QTY RANK ELECTRICAL PARTS V7077900 Circuit Board (XZ868F0) V7077900 Circuit Board (XZ868F0) EP600190 Bind Head Tapping Screw-B 3.0X8 MFZN2BL V7773500 Shield Cover V7860200 Cord Holder Jumper Wire 0.55... - Page 25 All manuals and user guides at all-guides.com DD-55 PART NO. DESCRIPTION REMARKS REF NO. QTY RANK UR848100 Electrolytic Cap. C0804 100.00 25.0V V6490000 C0811 Monolithic Ceramic Cap. 1.000 25V Z FG612470 Ceramic Capacitor-B C0812 470P 50V K V6490000 Monolithic Ceramic Cap.
- Page 26 All manuals and user guides at all-guides.com DD-55 PART NO. DESCRIPTION REMARKS REF NO. QTY RANK VY717100 Diode D0902 LT2A02-E VB941200 D0931 Diode 1SS133,1SS176 VD631600 Diode D0931 1SS133,176,HSS104 VB481900 Diode D0932 11ES4 VF195600 Diode D0932 11ES4 TA1 VB481900 D0933 Diode...
- Page 27 All manuals and user guides at all-guides.com DD-55 PART NO. DESCRIPTION REMARKS REF NO. QTY RANK V2993400 Coil L0791 R-5C.20U VB871100 L0851 Ferrite Beads BL02RN2-R62 VB871100 Ferrite Beads -0853 BL02RN2-R62 V2993400 Coil L0851 R-5C.20U V2993400 Coil -0853 R-5C.20U V I 4 8 6 8 0 0...
- Page 28 All manuals and user guides at all-guides.com DD-55 PART NO. DESCRIPTION REMARKS REF NO. QTY RANK HF757150 Carbon Resistor R0732 15.0K 1/4 J HF758100 R0733 Carbon Resistor 100.0K 1/4 J HF757220 Carbon Resistor R0734 22.0K 1/4 J HF757330 Carbon Resistor R0735 33.0K 1/4 J...
- Page 29 All manuals and user guides at all-guides.com <P.1> DD-55 DD-55 OVERALL CIRCUIT DIAGRAM (DD 1/2, DD 2/2) FLASH ROM REGULATOR +3.3V RESET SRAM 1M SRAM 1M MIDI IN SWX00B MIDI OUT ANALOG SWITCH PEDAL 2 (SWITCH) PAD 1 SENSOR POWER AMP...