Yamaha N-100 Service Manual
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Yamaha N-100 Service Manual

Yamaha N-100 Service Manual

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See also: Owner's Manual
Digital Piano
SERVICE MANUAL
CONTENTS
SPECIFICATIONS ..................................................................... 3
PANEL LAYOUT ...................................................................... 4
DISASSEMBLY PROCEDURE ................................................. 5
LSI PIN DESCRIPTION ........................................................... 17
IC BLOCK DIAGRAM ............................................................. 20
CIRCUIT BOARDS .................................................................. 21
TEST PROGRAM ................................................................... 35
MIDI IMPLEMENTATION CHART ......................................... 39
MIDI DATA FORMAT ............................................................. 40
PARTS LIST
BLOCK DIAGRAM
CIRCUIT BOARD LAYOUT & WIRING
OVERALL CIRCUIT DIAGRAM
CL
001766
HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF
'06.04

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  • Page 1 CIRCUIT BOARDS ..............21 TEST PROGRAM ..............35 MIDI IMPLEMENTATION CHART ......... 39 MIDI DATA FORMAT ............. 40 PARTS LIST BLOCK DIAGRAM CIRCUIT BOARD LAYOUT & WIRING OVERALL CIRCUIT DIAGRAM 001766 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. PDF ’06.04...

  • Page 2: Specifications

    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 N-100 SPECIFICATIONS Keyboard GH keyboard 88 keys (A-1–C7) Sound Source AWM Dynamic Stereo Sampling Polyphony (Max.) Voice Selection Effect Reverb Volume Master Volume Controls Dual, Transpose, Touch (Hard/Medium/Soft/Fixed) Pedal Damper (with half-pedal), Sostenuto, Soft Demo Songs 10 voice Demo Songs, 50 preset Songs...

  • Page 4: Panel Layout

    N-100 PANEL LAYOUT q [POWER] switch w [MASTER VOLUME] dial e [DEMO] button r [PIANO/VOICE] button t [SELECT] button y MIDI [IN] [OUT] terminals u AUX OUT [L] [R] (LEVEL FIXED) jacks i [PHONES] jacks o Soft pedal (left), Sostenuto pedal (center),...

  • Page 5: Disassembly Procedure

    N-100 DISASSEMBLY PROCEDURE Caution: Be sure to attach the removed filament tape just as it was before removal. Keyboard Cover (Time required: About 3 minutes) Pull up the keyboard cover cap to remove it. (Fig. 1) Open the keyboard cover and remove the four (4) screws marked [40].
  • Page 6 N-100 Upper Case Assembly To remove the upper case assembly in the U (Time required: About 10 minutes) model, remove the three (3) screws marked Fully open the keyboard cover until it is placed [103A], two (2) screws marked [103B] and PS upside down and away from you.
  • Page 7 N-100 <Top view> Power supply Power supply unit unit cover (U only) Speaker L PK connector [27B] Speaker R (Squawker) [42A] [27A] [103A] [103C] [103B] [42B] (Squawker) GND wire GND wire [21A] [21A] [21B] NET2 MAEQ [103A] [33] [17B], [B]...
  • Page 8 N-100 PJK Circuit Board Power Transformer and PS Circuit Board (Time required: About 15 minutes) (Time required: About 15 minutes) Remove the upper case assembly. (See procedure 2.) Remove the upper case assembly. (See procedure 2.) Disconnect the PK connector. (See procedure 3.) Remove the power supply unit.
  • Page 9 N-100 PL Circuit Board Shaft Holder Assembly L and Shaft Holder Assembly R (Time required: About 10 minutes) Remove the upper case assembly. (See procedure 2.) (Time required: About 10 minutes each) Remove the screw marked [15B]. The PL circuit 10-1 Remove the keyboard cover.
  • Page 10 N-100 Speakers (Woofers) Pedal Box Assembly and Pedal Assembly (Time required: About 2 minutes) (Time required: About 6 minutes) 11-1 Pull out the speaker grille to remove it toward you. 12-1 Fully open the keyboard cover until it is placed (Fig.
  • Page 11 N-100 PEDAL (SW) Circuit Board and PEDAL 13-6 Straighten the three (3) bent frame portions marked VR Circuit Board [C] securing the PEDAL (SW) circuit board using (Time required: About 11 minutes) pliers or the like and remove the two (2) screws...
  • Page 12 N-100 Speaker Box Assembly 14-4 Disconnect the AC cord and pedal cord (connector (Time required: About 5 minutes) assembly PK-LF) from the bottom of the main unit. 14-1 Fully open the keyboard cover until it is placed (Fig. 19) upside down and away from you. (Fig. 4) 14-5 Remove the pedal box assembly.
  • Page 13 N-100 Front Rail Holder Assembly Side Cover L and Side Cover R (Time required: About 13 minutes) (Time required: About 12 minutes each) 16-1 Remove the upper case assembly. (See procedure 2.) 17-1 Remove the upper case assembly. (See procedure 2.)
  • Page 14 N-100 Disassembling the Keyboard Assembly 19-3 GHD H Circuit Board After inserting a round stick (Rod: TX000670) (Time required: about 12 minutes) between the frame and the keys, remove the Remove the four (4) screws marked [260C] and the circuit boards. (Fig. 23) screw marked [262].
  • Page 15 N-100 19-5 White key Use special care not to move the white key In order to release the white key from the stopper, forward so much as to cause damage to the key insert a thin plate between the white keys (gap in spring.
  • Page 16 N-100 20-2 Spring 20-3 White Key (Black Key) Place the keyboard assembly right side up. Fix key After a key has been fit to part [G] and key guide, springs on the frame by setting one at each slit and make sure that the spring is fixed to the key and pushing down once on each key spring.

  • Page 17: Lsi Pin Description

    N-100 LSI PIN DESCRIPTION HD6433690B70FYV (X6008200) CPU (E-HOSTs) ................17 YMW767-VTZ (X6055A00) CPU (SWL01B) ..................18 AK4385ET (X6040A00) DAC (Digital to Analog Converter) ............... 19 µPD780031AYGK-N04 (X0031200) E-LKS ..................19 HD6433690B70FYV (X6008200) CPU (E-HOSTs) DM: IC024 NAME FUNCTION NAME FUNCTION Avcc Analog Power Supply (+3.3V)
  • Page 18 N-100 YMW767-VTZ (X6055A00) CPU (SWL01B) DM: IC004, 007 NAME FUNCTION NAME FUNCTION Ground Ground Input for TEST Power supply +3.3 V TESTN PLLBPN PLL bypass select External memory lower-byte enable / Port F LBN/LWRN/PF6 PLLV PLL Power supply +2.5 V...
  • Page 19 N-100 AK4385ET (X6040A00) DAC (Digital to Analog Converter) DM: IC011 NAME NAME FUNCTION FUNCTION AOUTR- Rch Analog out(-) MCLK Master Clock AOUTR+ Rch Analog out(+) BICK Audio Serial Data Clock AOUTL- SDTI Audio Serial Date Input Lch Analog out(-) AOUTL+...

  • Page 20: Ic Block Diagram

    N-100 IC BLOCK DIAGRAM SN74HC14NSR (XC725A00) SN74LV32APWR (X5647A00) SN74LV126APWR (X3865A00) PN: IC1 DM: IC018 DM: IC029 Hex Inverter Quad 2 Input OR Bus Buffer TC7S08FU (XP116A00) TC7W04FU (XP004A00) NJM2068M-D(TE2) (X3505A00) DM: IC002 DM: IC006 DM: IC014 2 Input AND Gate...

  • Page 21: Table Of Contents

    N-100 TA8233HQ (XU131A00) MAEQ: IC004 Audio Power Amplifier Clip-Det Short-Det VCC2 VCC1 OUT2 OUT1 Pre-Amp Flat- GND1 PROTECTOR LOAD DUMP Ripple THERMAL SHUT DOWN SHORT CIRCUIT GND2 OUT4 OUT3 Flat-Amp Pre-Amp Pre-GND Stand-By SW CIRCUIT BOARDS • Contents DM Circuit Board (X5830E0) ....................... 22/23 GHD EBUS L Circuit Board (XZ138D0) .....................
  • Page 22 N-100 DM Circuit Board Scale: 150/100 to PJK-CN1 to JACK-CN1 to JACK-CN9 to MAEQ-CN4 to PN-CN3 not installed not installed to PN-CN2 not installed to GHD EBUS L-CN1 not installed Component side 2NA-WD97020...
  • Page 23 N-100 DM Circuit Board Scale: 150/100 Mount the 48P-TSOP on the places marked IC8 and IC16 to use P2ROM. During the installment, mount the pin #1 of the 48P-TSOP to the position for the pin #3 of the 56P-TSOP. Pattern side...
  • Page 24 N-100 JACK Circuit Board to DM-CN7 to PN-CN1 to PL-CN11 to MAEQ-CN2 to MAEQ-CN3 to DM-CN2 PHONES MIDI AUX OUT Component side (LEVEL FIXED) PN Circuit Board to DM-CN4 to DM-CN5 to JACK-CN3 to Panel cover switch SELECT PIANO/VOICE DEMO...

  • Page 25: Jack Circuit Board (X6841D0)

    N-100 JACK Circuit Board Pattern side PN Circuit Board Pattern side JACK: 2NA-WF51870 2NA-WF54150...
  • Page 26 Wire (WG81540) Wire is fixed not installed not installed with a bond. Wire is fixed to JACK-CN6 to JACK-CN7 not installed to NET-CN1 to DM-CN1 to PS-CN2 with a bond. Component side 7pin...
  • Page 27 Pattern side...

  • Page 28: Mk Sub Circuit Board (Xz142B0)

    N-100 NET Circuit Board to MAEQ-CN6 to NET2-CN3 to Speaker box assembly (WF connector assembly) : not installed Component side MK SUB Circuit Board not installed to GHD EBUS L-CN5 to GHD EBUS L-CN4 Pattern side Component side NET: 2NA-WE06660...

  • Page 29: Net2 Circuit Board (X6011D0)

    N-100 NET2 Circuit Board not installed to NET-CN3 : not installed to Speaker L (SQUAWKER) to Speaker R (SQUAWKER) Component side PL Circuit Board Power indicator to JACK-CN10 Pattern side Component side NET2: 2NA-WE06660 2NA-WF51870...
  • Page 30 to MK SUB-CN1 to GHD M-CN1 to MK SUB-CN3 to DM-CN10 to GHD M-CN3 not installed Component side...
  • Page 31 not installed to GHD M-CN4 Component side...
  • Page 32 to GHD H-CN1 to GHD H-CN3 to GHD EBUS L-CN2 to GHD EBUS L-CN3 Component side...

  • Page 33: Pedal (Sw) Circuit Board (Xr780C0)

    N-100 PEDAL (SW) Circuit Board Soft Pedal Sostenuto Pedal Sostenuto Pedal Damper Pedal Component side PJK Circuit Board PEDAL VR Circuit Board to DM-CN3 Damper Volume Component side Component side Pattern side PEDAL(SW), PEDAL VR: 2NA-V233730 PJK: 2NA-WC56110...
  • Page 34 to MAEQ-CN1 to POWER switch AC INLET not installed Component side...

  • Page 35: Test Program

    N-100 TEST PROGRAM Preparation To execute the test, the following measuring instruments and jigs are required. (Input impedance of the measuring instruments should be 1 MΩ or more.) · Level meter (with JIS-C filter) · MIDI cable Set the [MASTER VOLUME] to the maximum level and the leave the pedals turned off.
  • Page 36 N-100 Table 1 Test items Test item Test function and judgment criteria ROM version check To check the Master ROM version using C0 — A2 keys. To check the Slave ROM version using C3 — A5 keys. Press keys in the specified range and find the key where the sine wave sounds. Check the version by the scale of that key.
  • Page 37 N-100 Test item Test function and judgment criteria Check that the sine wave of 440 Hz ± 0.2 Hz sounds at the level of specification (DAC Pitch check input full bit -12 dB). (PAN = Center) Connect the frequency counter to the [PHONES] jack for measurement.
  • Page 38 N-100 Test item Test function and judgment criteria Pedal 1 check The sine wave of C3 sounds when the test is started and the sine wave of C4 sounds when (Soft pedal) the pedal is depressed. When the pedal is released, the sound of the C4 sine wave stops and the test result is OK.

  • Page 39: Midi Implementation Chart

    N-100 MIDI IMPLEMENTATION CHART [ Digital Piano ] YAMAHA Date : 08-APR-2005 Model N-100 MIDI Implementation Chart Version : 1.0 Function Transmitted Recognized Remarks Basic Default 1 - 16 Channel Changed 1 - 16 1 - 16 Mode Default Messages...

  • Page 40: Midi Data Format

    MIDI DATA FORMAT If you’re already very familiar with MIDI, or are using a computer to control your music hardware with computer-generated MIDI messages, the data provided in this section can help you to control the N-100. 1. NOTE ON/OFF 3.
  • Page 41 N-100 4. PROGRAM CHANGE 7. SYSTEM EXCLUSIVE MESSAGES (Universal System Exclusive) Data format: [CnH] -> [ppH] CnH = Program event (n = channel number) (1) Universal Realtime Message ppH = Program change number Data format: [F0H] -> [7FH] -> [XnH] -> [04H] -> [01H] ->...
  • Page 42 Control Change values. Allow sufficient time for processing to execute (about 50 msec) before sending the N-100 another message. • XG Native Parameter Change message may contain two or four bytes of parameter data (depending on the parameter size).
  • Page 43 N-100 <Table 1> MIDI Parameter Change table (SYSTEM) Address (H) Size (H) Data (H) Parameter Description Default value (H) 00 00 00 020C–05F4(*1) MASTER TUNE -50–+50[cent] 00 04 00 00 1st bit 3–0 bit 15–12 2nd bit 3–0 bit 11–8 3rd bit 3–0...

  • Page 44: Parts List

    Digital Piano PARTS LIST CONTENTS OVERALL ASSEMBLY ............. 2 MAIN UNIT ................4 POWER SUPPLY UNIT ............7 UPPER CASE ASSEMBLY ............8 KEYBOARD ASSEMBLY ............10 PEDAL ASSEMBLY ..............12 ELECTRICAL PARTS ............13–22 Notes : DESTINATION ABBREVIATIONS A : Australian model M : South African model B : British model O : Chinese model...

  • Page 45: Overall Assembly

    N-100 OVERALL ASSEMBLY Main unit: See page 4. Front leg assembly 9 9a 9 9a Front leg assembly Speaker grille 9 9a Speaker box assembly Speaker box assembly Pedal box assembly Pedal assembly: See page 12. 9 9b...
  • Page 46 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK 総 組 立 OVERALL ASSEMBLY N-100 メ イ ン ユ ニ ッ ト   Ｕ Main Unit (WF69800) Main Unit メ イ ン ユ ニ ッ ト   Ｅ...

  • Page 47: Main Unit

    N-100 MAIN UNIT Upper case assembly : See page 8. Speaker holder assembly 19 M50 Power supply unit : See page 7. 19 M10 19 M20 19 M40 19 M60 19 M20 U only 19 M50 19 M120 19 M30...
  • Page 48 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK メ イ ン ユ ニ ッ ト MAIN UNIT N-100 メ イ ン ユ ニ ッ ト   Ｕ Main Unit (WF69800) Main Unit メ イ ン ユ ニ ッ ト   Ｅ...
  • Page 49 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK 束 線 構 成 メ イ ン Cable Assembly MAIN (WF72930) Connector Assembly MIDI PHR-5 5P L=400 Ｍ Ｉ Ｄ Ｉ 束 線 (WF67520) VK104600 Connector Assembly KRD-KRD 11P-250 Ｋ...

  • Page 50: Power Supply Unit

    N-100 POWER SUPPLY UNIT 部 品 名 PART NO. DESCRIPTION REMARKS REF NO. RANK POWER SUPPLY UNIT 電 源 ユ ニ ッ ト N-100 Power Supply Unit 電 源 ユ ニ ッ ト （ Ｕ ） (WF16800) 電 源 ユ ニ ッ ト （ Ｅ ）...

  • Page 51: Upper Case Assembly

    N-100 UPPER CASE ASSEMBLY Speaker grille assembly L Speaker grille assembly R 9 P20 9 P30 9 P40 9 P10 Power switch assembly 9 P60 P60a P60c P60b Shaft holder assembly L 9 P70 Shaft holder assembly R 9 P70...
  • Page 52 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK 上 ケ ー ス Ａ ｓ ｓ ’ ｙ UPPER CASE ASSEMBLY N-100 上 ケ ー ス Ａ ｓ ｓ ’ ｙ Upper Case Assembly (WF70910) WG235800 Upper Case 上...

  • Page 53: Keyboard Assembly

    N-100 KEYBOARD ASSEMBLY GH key set GHD frame assembly GHD frame assembly...
  • Page 54 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK Ｇ Ｈ Ｄ ＿ Ｅ Ｂ Ｕ Ｓ 鍵 盤 KEYBOARD ASSEMBLY GHD_EBUS A88 K6 N-100 V 8 2 7 8 5 0 1 Keyboard Assembly GHD_EBUS A88 K6 Ｇ...

  • Page 55: Pedal Assembly

    N-100 PEDAL ASSEMBLY 170 260 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK ペ ダ ル Ａ ｓ ｓ ’ ｙ （ Ｕ ） PEDAL ASSEMBLY N-100 ペ ダ ル Ａ ｓ ｓ ’ ｙ （ Ｕ ）...

  • Page 56: Electrical Parts

    N-100 ELECTRICAL PARTS PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK ELECTRICAL PARTS 電 気 部 品 N-100 WF541200 Circuit Board Ｄ Ｍ シ ー ト (WF54110)(X5830E0) V 8 5 1 4 8 0 0 Circuit Board GHD EBUS L ＧＨＤ＿ＥＢＵＳシートＬ...
  • Page 57 N-100 PART NO. DESCRIPTION REMARKS 部 品 名 REF NO. RANK  C0078 US135100 Ceramic Capacitor-F (chip) 0.1000 16V Z RECT. チ ッ プ セ ラ （ Ｆ ）   C0078 US145100 Ceramic Capacitor-F (chip) 0.1000 25V Z RECT.
  • Page 58 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK L0001 VY657200 Chip Inductance 600 BK1608HM601-T チ ッ プ イ ン ダ ク タ -0004 VY657200 Chip Inductance 600 BK1608HM601-T チ ッ プ イ ン ダ ク タ L0007...
  • Page 59 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK R0148 RD350000 Carbon Resistor (chip) 0 63M J RECT. チ ッ プ 抵 抗 R0149 RD354470 Carbon Resistor (chip) 47.0 63M J RECT. チ ッ プ 抵 抗 -0151...
  • Page 60 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK WF518800 Circuit Board JACK Ｊ Ａ Ｃ Ｋ シ ー ト (WF51870)(X6841D0) WF518900 Circuit Board Ｐ Ｌ シ ー ト (WF51870)(X6841D0) ジ ャ ン パ ー 線 Jumper Wire 0.55...
  • Page 61 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK VQ724900 Chip Inductance BK212 5HM601-T チ ッ プ イ ン ダ ク タ VB835000 Coil FL05RD200AT 20uH コ イ ル   ２ ０ Ｕ VB835000 Coil FL05RD200AT 20uH コ イ ル   ２ ０ Ｕ...
  • Page 62 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK C0023 WF204400 Electrolytic Cap. 22 25.0V TE ケ ミ コ ン C0024 WF204400 Electrolytic Cap. 22 25.0V TE ケ ミ コ ン C0025 WF204500 Electrolytic Cap. 220 25.0V TE ケ...
  • Page 63 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK IC007 X7391A00 UPC4574G2-E1-A Ｉ Ｃ OP AMP IC009 X7351A00 UPC4570G2-E1-A Ｉ Ｃ OP AMP IC010 X7391A00 UPC4574G2-E1-A Ｉ Ｃ OP AMP Ｉ Ｃ IC011 X7351A00 UPC4570G2-E1-A OP AMP チ...
  • Page 64 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK -0105 RD354100 Carbon Resistor (chip) 10.0 63M J RECT. チ ッ プ 抵 抗 R0106 RD357220 Carbon Resistor (chip) 22.0K 63M J RECT. チ ッ プ 抵 抗 R0107...
  • Page 65 N-100 PART NO. DESCRIPTION 部 品 名 REMARKS REF NO. RANK Ｌ Ｅ Ｄ WG463600 LED Blue E1L4E-SB1A6-02 DEMO WG463600 LED Blue E1L4E-SB1A6-02 Ｌ Ｅ Ｄ PIANO/VOICE WG463600 LED Blue E1L4E-SB1A6-02 Ｌ Ｅ Ｄ SELECT RD355680 Carbon Resistor (chip) 680.0 63M J RECT.

  • Page 66: Block Diagram

    Pedal Unit specifications equel to those originally installed. PEDAL PHONES PEDAL (SW) MIDI PEDAL VR SOFT DAMPER 28CA1-2001002652 SOSTENUTO N-100 CIRCUIT BOARD LAYOUT & WIRING to PL-CN11 To PSW to PN-CN2 to PN-CN3 CN10 To PN-CN1 MAEQ NET2 CN10 JACK...

  • Page 67: Parts List

    <Page 2> N-100 N-100 OVERALL CIRCUIT DIAGRAM 1/3 (DM) µPC37M32TJ-E1-AZ(X5914A00) NJM78M05DL1A(XS534A00) REGULATOR +3.3V/+2.5V REGULATOR +5V DM: IC005 DM: IC010 DRAM 4M not installed not installed not installed INVERTER 1: INPUT 2: NC 3: GND 1: INPUT 4: OUTPUT1 2: GND...

  • Page 68: Parts List

    <Page 3> N-100 N-100 OVERALL CIRCUIT DIAGRAM 2/3 (JACK, MAEQ, NET, NET2, PL, PN, PS) POWER Switch JACK TV-5 V-SEL *1 POWER VOLTEGE-SELECTOR TRANSFORMER AUX OUT (LEVEL FIXED) to DM-CN7 <Page 2 M-10> Power indicator AC-IN *1 28CC1-2001002657-1 2 AC INLET...

  • Page 69: Parts List

    <Page 4> N-100 N-100 OVERALL CIRCUIT DIAGRAM 3/3 (GHD EBUS L, GHD H, GHD M, MK SUB, PEDAL (SW), PEDAL VR, PJK) GHD EBUS L (A-1 ~ F#2) to DM-CN10 <Page 2 P-9> MK SUB E-LKS Not installed Not installed...

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