Yamaha Silent SB Series Service Manual
  1. Manuals
  2. Brands
  3. Yamaha Manuals
  4. Musical Instrument
  5. Silent SB Series
  6. Service manual

Yamaha Silent SB Series Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

SILENT SB SERIES
PP
008599
YAMAHA PIANO
SERVICE MANUAL
•U1-Silent
CONTENTS
SPECIFICATION ....................................................................... 2
SWITCH BOX & PEDAL ........................................................... 3
CIRCUIT BOARD LAYOUT ....................................................... 4
WIRING ..................................................................................... 4
DISASSEMBLY PROCEDURE ................................................. 5
LSI PIN DISCRIPTION ............................................................ 10
IC BLOCK DIAGRAM .............................................................. 14
CIRCUIT BOARDS ................................................................. 15
TEST MODE, ADJUSTMENT ................................................. 19
RELOADING THE PROGRAM ............................................... 21
MIDI IMPLEMENTATION CHART ........................................... 23
PIANO MAINTENACE PART .................................................. 24
OVERALL CIRCUIT DIAGRAM
•U1-Silent
(MPU1)
•U3-Silent
•M112-Silent
0.915K-2411 IT
Printed in Japan '02.06

Advertisement

Table of Contents
loading

Related Manuals for Yamaha Silent SB Series

Summary of Contents for Yamaha Silent SB Series

  • Page 1: Table Of Contents

    YAMAHA PIANO SILENT SB SERIES SERVICE MANUAL •U1-Silent (MPU1) •U3-Silent •M112-Silent •U1-Silent CONTENTS SPECIFICATION ............... 2 SWITCH BOX & PEDAL ............3 CIRCUIT BOARD LAYOUT ............4 WIRING ..................4 DISASSEMBLY PROCEDURE ..........5 LSI PIN DISCRIPTION ............10 IC BLOCK DIAGRAM .............. 14 CIRCUIT BOARDS ..............
  • Page 2 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: Specification

    Soft pedal: on/off Digital piano tone generator: Type: Digital stereo sampling, sustain pedal resonance effects Voice: Yamaha CFIIIS concert grand piano Memory: 16 MB wave memory Polyphony: 32-note stereo sampling (64-note stereo switchable) Reverb types: Room, Hall 1, Hall 2 (all with continuous depth control)

  • Page 4: Circuit Board Layout

    SILENT SB SERIES CIRCUIT BOARD LAYOUT U1 Silent ●  Key Sensor Unit SW Box Unit Pedal Unit S Pedal Unit L MN Unit DC in Unit S WIRING REF. CONNECTOR KEY SENSOR DESTINATION PART NO. ASSEMBLY KEY SENSOR-CN1 MN-CN2 KS-K Connector Assembly...

  • Page 5: Disassembly Procedure

    SILENT SB SERIES DISASSEMBLY PROCEDURE Case & Keyboard Upper Front Board (time required: about 3 minutes) 1-1 Open the top board. (Fig. A-1) Upper front board stopper 1-2 Next turn the left and right upper front board stopper. The upper front board can then be removed. (Fig. A-2)
  • Page 6 SILENT SB SERIES Key shutter Keyboard Keyboard (Fig. A-6) (Fig. A-7) Electrical Parts KEY SENSOR Key Sensor Unit (time required: about 27 minutes) 1-1 Remove the upper front board. (See Procedure A-1) 1-2 Remove the fall board. (See Procedure A-3) 1-3 Remove the key stop rail.
  • Page 7 SILENT SB SERIES MN Unit MN Circuit Board (time required: about 2 minutes) (time required: about 28 minutes) 3-1 Remove the lower front board. (See Procedure A-2) 4-1 Remove the lower front board. (See Procedure A-2) 3-2 Loosen the three (3) screws marked [51S]. the MN 4-2 Remove the six (6) screws marked [21G].
  • Page 8 SILENT SB SERIES Switch Boax Unit (time required: about 1 minutes) 6-1 Loosen the four (4) screws marked [41S]. The switch box unit can then be removed. (Fig. B-5) [41S] Switch box unit [41S]: Truss Head Tapping Screw-1 4.0X12 MFZN2BL (03747270) (Fig.
  • Page 9 SILENT SB SERIES Rear View DC IN UNIT S DC IN Unit (time required: about 1 minutes) Front View 9-1 Remove the two (2) screws marked [81S]. The DC IN unit S can then be removed. (Fig. B-7) Lower View...

  • Page 10: Lsi Pin Discription

    SILENT SB SERIES LSI PIN DISCRIPTION CONTENTS HD64F2128F16 (X2690A00) CPU ............10 page HD6417014F28 (XU147A00) CPU ............11 page TC203C760HF-001 (XR738A00) SWP30 ............12 page TC203C760HF-002 (XS725A00) SWP30B ............ 13 page PCM1702U/2K (XP551A00) DAC ............14 page HD64F2128F16 (X2690A00) CPU (FLASH)
  • Page 11 SILENT SB SERIES HD6417014F28 (XU147A00) CPU MN: IC002 NAME FUNCTION NAME FUNCTION ü PE14 Port E ï ï PE15 Port E Data bus ý ï Ground ï ü þ ï ï Ground ï ü ï ï ï ï ý Data bus ï...
  • Page 12 SILENT SB SERIES TC203C760HF-001 (XR738A00) SWP30 (AWM Tone Generator coped with MEG) Standard Wave Processor MN: IC007 NAME FUNCTION NAME FUNCTION (Ground) (Ground) HMD0 HMD1 HMD2 HMD3 HMD4 Address bus of internal register HMD5 HMD6 Wave memory data bus (Upper data memory)
  • Page 13 SILENT SB SERIES TC203C760HF-002 (XS725A00) SWP30B (AWM Tone Generator coped with MEG) Standard Wave Processor MN: IC007 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)

  • Page 14: Ic Block Diagram

    SILENT SB SERIES PCM1702U/2K (XP551A00) DAC (Digital to Analog Converter) MN: IC105, 106 NAME FUNCTION NAME FUNCTION DATA Data input +VCC Power supply (+5 V) Clock Bipolar de-couple +VDD Power supply (+5 V) IOUT Output current D.GND Digital ground A.GND...

  • Page 15: Circuit Boards

    SILENT SB SERIES CIRCUIT BOARDS CONTENTS KEY SENSOR Circuit Board V8968400 (X2329B0) ........15 page MN Circuit Board V7986700 (X0577A0) ........16 page MN POWER SUPPLY Circuit Board V4389300 (XW593A0) ........18 page HP Circuit Board UPS V5460100 (XY527A0) ........18 page KEY SENSOR Circuit Board to MN-CN2...

  • Page 16: Mn Circuit Board

    SILENT SB SERIES MN Circuit Board to HP(1/2)-CN4 to HP(2/2)-CN7 to HP(1/2)-CN5 OPEN OPEN DIP SWITCH to HP(2/2)-CN6 DAMPER OPEN to MN-POWER SUPPLY-CN02 to KEY SENSOR -CN1 maintenance Component side to HP(1/2)-CN8 OPEN to PEDAL unit MN: V798670...
  • Page 17 SILENT SB SERIES MN Circuit Board Pattern side MN : V798670...

  • Page 18: Mn Power Supply Circuit Board

    SILENT SB SERIES MN POWER SUPPLY Circuit Board to MN-CN108 to HP(1/2) -CN2 Component side HP Circuit Board UPS (HP1/2) to DC IN unit to MN-CN106 to MN-CN104 to MN-POWER SUPPLY-CN01 to MN-CN5 PITCH VOLUME HEADPHONES REVERB to Power SW...

  • Page 19: Test Mode, Adjustment

    SILENT SB SERIES TEST MODE, ADJUSTMENT [1] Key Sensor Adjustment A) Measurement of All Keys 1) Startup Switch on the power source while pressing the three lowest F#(10), G#(12), and A#(14) keys. A tone will be sounded every other second (waiting mode) 2) Start of rest value reading Press the damper pedal.
  • Page 20 SILENT SB SERIES [2] Sensor Test Mode 1) Start up Switch on the power source while pressing the lowest A(1), B(3), and C(4) keys. 2) Key sensor unit Confirm that the sounding position is the same as in the upright piano silent series.

  • Page 21: Reloading The Program

    * On the Alias menu, specify the file containing the 2. Add-in board for input/ output of MIDI signals (card) new program you want to update and the loader, Examples: Yamaha PPC10XG (with MIDI BOX) and also specify the site (folder) containing the Roland SCP55A (PC card) information (Filter.ini) file.
  • Page 22 Check that the driver for the external MIDI terminal is set. (It is likely that MIDI OUTPUT is connected to the PC’s interior sound source.) Fig. 6 shows an instance of PCC10XG for the PC card of Yamaha make. (Fig. 6)
  • Page 23 SILENT SB SERIES...

  • Page 24: Piano Maintenace Part

    PIANO MAINTENANCE PART •YAMAHA SILENT UPRIGHT PIANO SB SERIES Since Yamaha hybrid piano series were introduced into the market in 1987, there have been 2 service materials for each piano technicain (Maintenance hand books) and electronic technician (service manuals). The both materials are unified now and will be issued as new service manuals.
  • Page 25 SILENT SB SERIES •6 STEP MAINTENANCE for the PIANO TECHNICIAN (Minimum 3 are necessary.) Check if the hammer shank stopper do not disturb the dampers or hammers  STEP 1 movement during normal playing. --> OK STEP 2  Hammer shank stopper height/lateral adjustment is necessary if any disturbing happens. --> STEP 6 STEP 2 Depress and lock the center pedal to enter silent mode. Check if the acoustic sound doesn't come out during Turn backle playing keyboard with mf (Mezzo forte level). If no  ...
  • Page 26 SILENT SB SERIES STEP 5 Fig. 3 H a m m e r s h a n k s t o p p e r The screws on each shank stopper section give the fine hammer stop positioning and eliminate unevenness in the same section.
  • Page 27 SILENT SB SERIES •TEST MODE Test mode has two functions that are sensor test and tone generator version check. The keys that sound unusually or nothing in the STEP 3 need to be checked by this mode. TEST MODE 1 Hold A,B,C (1,3,4 keys) simultaneously and turn on the power until it clicks, then release keys.
  • Page 28 SILENT SB SERIES •KEY SENSOR MEASUREMENT When key sensor unit or key sensor board has been replaced, the sensor must store the correct relational measured data between the key movement and the sensor light transition quantity. According to this procedure, the virtual 4 key sensing points (K1 - K4) will be created on the gray scale stroke.
  • Page 29 •CONFIRM THE SYMPTOMS In order to get more information or replacing parts about these models, Yamaha service desk reqires the correct model name and serial number. (Sometimes electorical serial number and the sensor or tone generator version.) Refer to the sticker on the bottom of the switch box under the keybed.
  • Page 30 SILENT SB SERIES For discribing the position for parts or explaining the symptoms. (silent SB) Fig. 12...

  • Page 31: Parts List

    YAMAHA PIANO SILENT SB SERIES PARTS LIST CONTENTS OVERALL ASSEMBLY ............... 2 KEY SENSOR UNIT ..............6 MN UNIT ..................7 SWITCH BOX UNIT ..............8 PEDAL UNIT L ................9 PEDAL UNIT S ................. 10 DC IN UNIT S ................11 ELECTRICAL PARTS ..............

  • Page 32: Overall Assembly

    SILENT SB SERIES OVERALL ASSEMBLY • U1-Silent • U3-Silent 221S 211S 222S 212S 223S 213S 121S 100a D View 151S Left Side B View 181S U3 only C View 110a U1 System: 84 U3 System: 96 201S 202S A View...
  • Page 33 SILENT SB SERIES • M112-Silent 185S 180 186 187 121S 100a D View 151S 110a B View Left Side E View C View A View 161S...
  • Page 34 SILENT SB SERIES A1 AC Adapter (PA-300) U Model REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS QTY RANK OVERALL ASSEMBLY Ｕ Ｐ Ｓ 総 組 本 体 U1/U3/M112 Overall Assembly Ｕ Ｐ Ｓ 総 組 本 体 (V900410) Overall Assembly Ｕ...
  • Page 35 SILENT SB SERIES 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK ＋ ト ラ ス Ｔ Ｐ     １ 種 0 3 7 4 7 2 7 0 Truss Head Tapping Screw-1 4.0X12 MFZN2BL ＋ バ イ ン ド Ｓ タ イ ト...

  • Page 36: Key Sensor Unit

    SILENT SB SERIES KEY SENSOR UNIT Top View Side View Lower View 88-Piece attachment 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK KEY SENSOR UNIT キ ー セ ン サ ユ ニ ッ ト U1/U3/M112 ∗ V 9 4 4 4 2 0 0...

  • Page 37: (Xw593A0)

    SILENT SB SERIES MN UNIT Front View Lower View REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS QTY RANK MN UNIT Ｍ Ｎ ユ ニ ッ ト U1/U3/M112 MN Unit Ｍ Ｎ ユ ニ ッ ト U1/U3 U,E/M112 U...

  • Page 38: (Xy527A0)

    SILENT SB SERIES SWITCH BOX UNIT Rear View Top View Left Side View Front View REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS QTY RANK SWITCH BOX UNIY Ｓ Ｗ   Ｂ Ｏ Ｘ ユ ニ ッ ト U1/U3/M112 Switch Box Unit Ｓ...

  • Page 39: Pedal Unit L

    SILENT SB SERIES PEDAL UNIT L Top View Rear View Left Side View 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK ペ ダ ル ユ ニ ッ ト   Ｌ PEDAL UNIT L U1/U3/M112 ペ ダ ル ユ ニ ッ ト   Ｌ...

  • Page 40: Pedal Unit S

    SILENT SB SERIES PEDAL UNIT S Left Side View Top View REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS QTY RANK ペ ダ ル ユ ニ ッ ト   Ｓ PEDAL UNIT S U1/U3/M112 ペ ダ ル ユ ニ ッ ト   Ｓ...

  • Page 41: Dc In Unit S

    SILENT SB SERIES DC IN UNIT S Rear View Left Side View REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS QTY RANK DC IN UNIT S Ｄ Ｃ   Ｉ Ｎ ユ ニ ッ ト U1/U3/M112 ∗ V 9 6 0 7 5 0 0...

  • Page 42: Electrical Parts

    SILENT SB SERIES ELECTRICAL PARTS 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK 電 気 部 品 ELECTRICAL PARTS U1/U3/M112 Ｈ Ｐ シ ー ト Ｕ Ｐ Ｓ V 5 4 6 0 1 0 0 Circuit Board (XY527A0) ∗...
  • Page 43 SILENT SB SERIES 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK チ ッ プ ケ ミ コ ン CPD01 UF018100 Electrolytic Cap. (chip) 100 6.3V チ ッ プ ケ ミ コ ン CPD02 UF018100 Electrolytic Cap. (chip) 100 6.3V...
  • Page 44 SILENT SB SERIES 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK チ ッ プ 抵 抗 RL001 RD357100 Carbon Resistor (chip) 10.0K 63M J チ ッ プ 抵 抗 -007 RD357100 Carbon Resistor (chip) 10.0K 63M J チ...
  • Page 45 SILENT SB SERIES 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK チ ッ プ セ ラ （ Ｆ ） C0207 US145100 Ceramic Capacitor-F (chip) 0.1000 25V Z チ ッ プ セ ラ （ Ｆ ） C0208 US145100 Ceramic Capacitor-F (chip) 0.1000 25V Z...
  • Page 46 SILENT SB SERIES 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK チ ッ プ イ ン ダ ク タ FB100 VQ724900 Chip Inductance BK2125HM601-T チ ッ プ イ ン ダ ク タ -103 VQ724900 Chip Inductance BK2125HM601-T 巻...
  • Page 47 SILENT SB SERIES 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK チ ッ プ 抵 抗 R0055 RD356470 Carbon Resistor (chip) 4.7K 63M J チ ッ プ 抵 抗 R0056 RD356220 Carbon Resistor (chip) 2.2K 63M J チ...
  • Page 48 SILENT SB SERIES 部 品 名 REMARKS REF NO. PART NO. DESCRIPTION QTY RANK チ ッ プ 抵 抗 R0254 RD350000 Carbon Resistor (chip) 0 63M J チ ッ プ 抵 抗 R0255 RD357100 Carbon Resistor (chip) 10.0K 63M J チ...
  • Page 49 SILENT SB SERES SILENT SB SERIES OVERALL CIRCUIT DIAGRAM (MN, KEY SENSOR, HP-UPS, MN POWER SUPPLY) NAND DRAM 4M EPROM 8M Damper pedal Soft pedal ROM WAVE L 64M SWP30 PHOTO COUPLER DRAM 4M PHOTO COUPLER OPEN ROM WAVE L 64M...

This manual is also suitable for:

U1-silentU3-silentM112-silent

Table of Contents