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Yamaha PSR-E473 Service Manual

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001998
PK
-A0
2022.01
SERVICE MANUAL
n
CONTENTS
SPECIFICATIONS................................................................................... 3
PANEL LAYOUT ..................................................................................... 5
DISASSEMBLY PROCEDURE ............................................................... 8
Disassembling the keyboard (time required: About 13 minutes) ........... 14
BACKUP................................................................................................ 16
INITIALIZATION .................................................................................... 17
INSPECTIONS ...................................................................................... 18
APPENDIX ............................................................................................ 29
CIRCUIT BOARDS................................................................................ 31
BLOCK DIAGRAM
CIRCUIT BOARD LAYOUT WIRING
OVERALL CIRCUIT DIAGRAM
PARTS LIST
© 2021 Yamaha Corporation.
PSR-E473

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  • Page 1 Disassembling the keyboard (time required: About 13 minutes) ... 14 BACKUP....................16 INITIALIZATION ..................17 INSPECTIONS ..................18 APPENDIX .................... 29 CIRCUIT BOARDS................31 BLOCK DIAGRAM CIRCUIT BOARD LAYOUT WIRING OVERALL CIRCUIT DIAGRAM PARTS LIST 001998 2022.01 © 2021 Yamaha Corporation.
  • 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 speci cally Yamaha Products, are already known and understood by the users, and have therefore not been restated.
  • Page 3 PSR-E473 SPECIFICATIONS Product Name Digital Keyboard 992 mm × 404 mm × 136 mm Dimensions (W x D x H) (39-1/16” x 15-7/8” x 5-3/8”) Size/Weight 7.0 kg (15 lbs., 7 oz.) Weight (not including batteries) Keyboard , t f...
  • Page 4 (HR6) batteries Power Consumption 9 W (When using PA-150 AC adaptor) • Owner’s Manual • AC adaptor* (PA-150 or an equiva- lent recommended by Yamaha) * May not be included depending Included Accessories on your area. Check with your Yamaha dealer.
  • Page 5 PSR-E473 PANEL LAYOUT Front Panel ■  Display (C1) (C2) (C3) (C4) (C5) (C6) As illustrated, each note of the keyboard has a speci c note number and name (e.g., 036/C1), which is used in making various settings, such as Split Point.
  • Page 6 PSR-E473 ⓴ ⓱ ⓳ ⓲ 〜 [REGISTRATION MEMORY] buttons ⓱ [VOICE] button ⓲ [STYLE] buttons ⓳ [SONG/AUDIO] buttons QUICK SAMPLING ⓴ [GROOVE CREATOR] buttons 〜 [A] − [D] pads Dial  [LOOP HOLD] button Category/Number input buttons, [EXIT] button, [ENTER] button [CAPTURE] button [FUNCTION] button [PORTABLE GRAND] button [MEGA BOOST] button [PITCH BEND] wheel 〜 Playback control buttons 〜 [TRACK CONTROL] buttons...
  • Page 7 PSR-E473 ■Rear Panel [SUSTAIN] jack [AUX IN] jack OUTPUT [L/L+R]、[R] jacks [USB TO DEVICE] terminal [PHONES] jack [USB TO HOST] terminal [MIC INPUT] jack DC IN jack [GAIN] knob...
  • Page 8 PSR-E473 DISASSEMBLY PROCEDURE Caution: ▪ Be sure to attach the removed filament tape just as it was before removal. 1. Lower Case Assembly (Time required: About 3 minutes) Remove the 8 screws marked [70], the 6 screws marked [75] and the 5 screws marked [80]. The Lower Case Assembly can then be removed.
  • Page 9 PSR-E473 2. DMLCD Circuit Board (Time required: About 6 minutes) Remove the lower case assembly. (See procedure 1) Remove the 13 screws [380A]. The DMLCD circuit board can then be removed. (Fig.2) After replacing the DMLCD circuit board, execute "Factory Reset" in the Test program.
  • Page 10 PSR-E473 4. PNL-B, PNR-B, AMPN, KNOB, JACK and ENC Circuit Board Remove the lower case assembly. (See procedure 1) PNL-B Crcuit Board (Time required: About 6 minutes) 1. Remove the 11 screws [380B]. The PNL-B circuit board can then be removed. (Fig.2) PNR-B Crcuit Board (Time required: About 6 minutes) 1.
  • Page 11 PSR-E473 5. MVR Crcuit Board, PB Crcuit Board, Wheel Assembly Remove the lower case assembly. (See procedure 1) MVR Crcuit Board (Time required: About 3 minutes) 1. Remove the volume knob from the control panel surface. (Fig.1 and Fig.5) 2. Remove the 5 screws [380H]. The MVR circuit board can then be removed. (Fig.2) PB Crcuit Board, Wheel assembly (Time required: About 5 minutes) 1.
  • Page 12 PSR-E473 7. Speaker (Time required: About 4 minutes each) Remove the lower case assembly. (See procedure 1) Remove the 4 screws marked [70]. The speaker can then be removed. (Fig.8) Remove the right and left speakers in the same way.
  • Page 13 PSR-E473 9. Removing the Spring Terminals Spring terminal A and spring terminal B (Time required: About 8 minutes) 1. Remove the lower case assembly. (See procedure 1) 2. Remove the BATT ribbon cable soldered to spring terminals A and B. (Fig.9) 3.
  • Page 14 PSR-E473 Disassembling the keyboard (time required: About 13 minutes) Remove the lower case assembly. (See procedure 1) White keys and black keys 1. The white and black keys are grouped in single octave sets starting from the left side and consist of a total of five sets.
  • Page 15 PSR-E473 HOOK Photo1 Circuit Board 61L-MK 1. Remove the C1 to B3 white and black keys. (See Fig.1 and "●White keys and black keys") 2. Remove the 4 screws marked [100C] and 8 screws marked [100A]. The circuit board 61L-MK can then be removed.
  • Page 16 PSR-E473 BACKUP Backup Parameters The following Backup parameters will be maintained even if the power is turned off. Backup parameters (each time) ▪ User Songs ▪ Styles loaded from outside (Style Number 291 to 300) ▪ Samples saved to Quick Sampling pads Backup parameters when turning off the power ▪...
  • Page 17 PSR-E473 INITIALIZATION You can erase the backup parameter settings described above, and then restore all the default factory settings. The instrument can be initialized with the following two methods. Backup Clear This operation initializes the backup parameters. While holding down the highest white key, press the [ ] (Standby/On) switch to turn the power on.
  • Page 18 PSR-E473 INSPECTIONS 1. TEST PROGRAM Caution: ▪ If "Factory Reset" of Test Item No. 66 is executed, the setting data and user data will be erased. Be sure to save the backup data in advance. 2. Measurement conditions 2-1. Environment Perform tests under following conditions.
  • Page 19 PSR-E473 3. Test Mode 3-1. Starting Test mode While holding down the [C#2], [F2], and [G#2] keys simultaneously, press the [ ] (Standby/On) switch. When Test mode is started, "TEST" is shown on the LCD screen. 3-2. Selection and execution of test items Press the [+] or [-] buttons in the Number buttons area to select the test item.
  • Page 20 PSR-E473 3-5. Test Program Item List Inspection items Procedures for selection and execution of test items ROM version This shows the ROM version. Press the [START/STOP] button. The version number of the main program is displayed. “*** Main” (where *** is the version number) Press the [START/STOP] button to return to the test item selection screen.
  • Page 21 PSR-E473 Inspection items Procedures for selection and execution of test items Output level R Check This measures whether the output level of the R channel of the Output jack is proper. Before starting the test, connect the level meter to the Output jack on the rear panel.
  • Page 22 PSR-E473 Inspection items Procedures for selection and execution of test items MUTE Check Checks whether the Mute function works properly. Press the [START/STOP] button. “MUTE Off” is shown on the LCD and the C5 sound is produced. Press the [+] button, and the muting circuit is activated.
  • Page 23 PSR-E473 Inspection items Procedures for selection and execution of test items MIC Check Checks whether signal input to the [MIC INPUT] jack functions properly. Press the [START/STOP] button, and check whether “MIC In” is shown on the LCD when nothing is connected to the [MIC-INPUT] jack.
  • Page 24 PSR-E473 Inspection items Procedures for selection and execution of test items Main Volume Check Checks whether the minimum value and maximum value of the [MASTER VOLUME] control are detected properly. Press the [START/STOP] button. “MVol Min” is shown on the LCD.
  • Page 25 PSR-E473 Inspection items Procedures for selection and execution of test items Knob Check Checks whether the minimum value, maximum value, and center value of the [LIVE CONTROL A, B] knobs are detected correctly. Press the [START/STOP] button. “Knob1 Lo” is shown on the LCD.
  • Page 26 PSR-E473 Inspection items Procedures for selection and execution of test items Ping Pong Mode Check Checks whether the 2 contacts of each key work properly. Press the [START/STOP] button. “Press” is shown on the LCD. Slowly press the key that you want to check.
  • Page 27 PSR-E473 Inspection items Procedures for selection and execution of test items Factory Reset Reset all the backup region of the memories to the initial factory status. Press the [START/STOP] button. Do not turn off the power while “Fact --” is shown on the LCD.
  • Page 28 PSR-E473 5. Switch Test Item List Turn SW Name LCD Display Note Number DIAL UP DIAL DOWN MIC SETTING MOTION EFFECT KNOB ASSIGN SPLIT DUAL HARMONY DSP2 OCTAVE - OCTAVE + DEMO METRONOME SHIFT GROOVE VOICE SONG STYLE Tenkey 1...
  • Page 29 PSR-E473 APPENDIX 1. DMLCD Circuit Board Check Method The DMLCD circuit board is provided with test points for service check purposes. Check the test points on the DMLCD Circuit Board if the following symptoms appear. Symptoms and check items ▪ No power indicator with LCD. --> Check the test points from No.1 to 4 sequentially ▪...
  • Page 30 PSR-E473 2. SYSTEM BOOTING FLOW CHART Power ON Check1 Test Mode? PSWO output boot Opening screen displayed Display for test program Check2 main Initialization task startup Check6 Cancels ADC-IC Reset Check3 Sound can be emitted via PAD/MIDI Test program Main screen displayed Check7 Initialize PCM Initialization of backup data PSR-E473 IC001 Cancels interrupt mask Program ROM IC111 SDRAM IC132 波形ROM...

  • Page 31: Table Of Contents

    PSR-E473 CIRCUIT BOARDS CONTENTS DMLCD Circuit Board (YM171E0)............................ 32 AMPN Circuit Board (YM172B0) .............................. 32 KNOB Circuit Board (YM172B0) .............................. 32 PNR-T Circuit Board (YM173C0) ............................. 33 JACK Circuit Board (YM173C0) ............................... 33 ENC Circuit Board (YM173C0).............................. 33 PB Circuit Board (YM173C0) .............................. 33 PNL-B Circuit Board (YM174C0).............................. 34 PNR-B Circuit Board (YM174C0) ............................. 34...

  • Page 32: Dmlcd Circuit Board (Ym171E0)

    PSR-E473 DMLCD Circuit Board (YM171E0) AMPN Circuit Board (YM172B0) to PNL-B-CN101 to PNL-B-CN001 to PNR-B-CN201 to AMPN-CN005 to MK-L-CN5 to MK-H-CN1 to MK-H-CN2 to Battery terminals DC IN Component Side 22NA0-VDX1870 KNOB Circuit Board (YM172B0) Component Side 22NA0-VDW9820 to PNL-B-CN102...

  • Page 33: Pnr-T Circuit Board (Ym173C0)

    PSR-E473 PNR-T Circuit Board (YM173C0) ENC Circuit Board (YM173C0) to PNR-B-CN202 to DMLCD-CN305 Component Side 22NA0-VDX1950 PB Circuit Board (YM173C0) to MVR-CN412 Component Side 22NA0-VDX1950 JACK Circuit Board (YM173C0) Component Side 22NA0-VDX1950 to DMLCD-CN201 Component Side 22NA0-VDX1950...

  • Page 34: Pnl-B Circuit Board (Ym174C0)

    PSR-E473 PNL-B Circuit Board (YM174C0) to DMLCD-CN302 to DMLCD-CN304 to KNOB-CN501 to AMPN-CN101 Component Side 22NA0-VDX2000 PNR-B Circuit Board (YM174C0) to DMLCD-CN301 to PNR-T-CN201 Component Side 22NA0-VDX2000 MVR Circuit Board (YM174C0) to PB-CN401 to PNL-B-CN103 Component Side 22NA0-VDX2000...

  • Page 35: Mk-H Circuit Board (Yk216A0)

    PSR-E473 MK-H Circuit Board (YK216A0) to DMLCD-CN502 to MK-L-CN4 to DMLCD-CN503 Component Side 22NA0-VAX3200 MK-L Circuit Board (VAX3210) to MK-H-CN3 to DMLCD-CN501 Component Side 22NA0-VAX3210...
  • Page 36 PSR-E473...
  • Page 37 3.CIRCUIT DIAGRAM CIRCUIT DIAGRAM CONTENTS BLOCK DIAGRAM .................. 2 CIRCUIT BOARD LAYOUT WIRING ............ 3 OVERALL CIRCUIT DIAGRAM DMLCD .................... 4 AMPN, KNOB, DCIN-EH, DCIN-EWH .......... 5 PNR-T, JACK, ENC, PB, MOD .............  6 PNL-B, PNR-B, MVR ................ 7 MK-L, MK-H .................. 8...

  • Page 38: Block Diagram

    PSR-E473 BLOCK DIAGRAM TOUCH RESPONSE Keyboard 61KEY (16NS) PNR-B (PN-B 2/3) PNR-T KNOB (PNJK 3/5) (PNJK 1/5) (PNJK 4/5) (PN-B 3/3) (AMPN 2/4) SW MATRIX SW211~214 (C1 ~B3) (C4 ~C6) SW211~214 SW411 VR411 ENCODER SW221,223,224 SW221~224 VR502 VR501 (SW 11pcs)

  • Page 39: Circuit Board Layout Wiring

    PSR-E473 CIRCUIT BOARD LAYOUT WIRING UPPER CASE ASSEMBLY Unit Name Location Parts No. Connector Assembly Destination Pins Notes (VEJ5730) FLAT CABLE C&C MK-H - CN1 DMLCD - CN503 12Pin Note1 LOWER CASE (VEJ5720) FLAT CABLE C&C MK-H - CN2 DMLCD - CN502...

  • Page 40: Dmlcd

    PSR-E473 DMLCD DMLCD + 3 . 3 D PANEL SW C N 3 0 2 R 5 2 1 B [ 7 ] B 1 3 B - W B A S C 5 0 1 1 0 0 R A 5 0 2 + 3 .

  • Page 41: Ampn, Knob, Dcin-Eh, Dcin-Ewh

    PSR-E473 AMPN, KNOB, DCIN-EH, DCIN-EWH AMPN D 0 0 1 D 0 0 4 : P S R - E 4 7 3 o n l y R L 2 0 2 D 0 0 5 & J 0 0 2 : P S R - E W 4 2 5 o n l y...

  • Page 42: Pnr-T, Jack, Enc, Pb, Mod

    PSR-E473 PNR-T, JACK, ENC, PB, MOD R E S I S T O R C A P A C I T O R R E M A R K S P A R T S N A M E R E M A R K S...

  • Page 43: Pnl-B, Pnr-B, Mvr

    PSR-E473 PNL-B, PNR-B, MVR to MVR-CN411 to KNOB-CN501 to DMLCD-CN304 <Page 7 F10> <Page 5 J7> <Page 4 AG11> to AMPN-CN101 to DMLCD-CN302 to DMLCD-CN301 to PNR-T-CN201 <Page 5 E8> <Page 4 AG2> <Page 4 AG5> <Page 6 B8> + 3 . 3 D...

  • Page 44: Mk-L, Mk-H

    PSR-E473 MK-L, MK-H MK-H to DMLCD-CN503 <Page 4 C7> 52147-1210 SW37 SW38 SW39 SW40 SW41 SW42 SW43 SW44 SW45 SW46 SW47 SW48 SW49 SW50 SW51 SW52 SW53 SW54 SW55 SW56 SW57 SW58 SW59 SW60 SW61 to DMLCD-CN502 <Page 4 C2>...
  • Page 45 4.PARTS LIST PARTS LIST CONTENTS OVERALL ASSEMBLY ................ 2 UPPER CASE ASSEMBLY ................. 4 LOWER CASE ASSEMBLY ................ 6 LOWER CASE SUB ASSEMBLY.............. 7 KEYBOARD ASSEMBLY ................ 8 ELECTORICAL PARTS ................ 10 * DESTINATION ABBREVIATIONS Australian model South-east Asia model British model Taiwan model Canadian model U.S.A. model German model General export model (110V) European model...
  • Page 46 PSR-E473 PSR-E473 ■ OVERALL ASSEMBLY （総組立） OVERALL ASSEMBLY F120 F100 F110...

  • Page 47: Overall Assembly

    PSR-E473 PSR-E473 REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS OVERALL ASSEMBLY 総 組 立 PSR-E473 FINAL ASSEMBLY 総 組 立 (VED5060) UPPER CASE ASSEMBLY (VED5040) 上 ケ － ス Ａ ｓ ｓ ’ ｙ LOWER CASE ASSEMBLY 下 ケ － ス Ａ ｓ ｓ ’ ｙ...

  • Page 48: Upper Case Assembly

    PSR-E473 PSR-E473 ■ UPPER CASE ASSEMBLY UPPER CASE ASSEMBLY U10b U10c U10a U10b U10d U380 U220 U304 U302 U380 U460 U380 U380 U306 U270 U200 U380 U910 U210 U100 U380 U950 U110 U900 U610 U290 U280 U380 U260 U110 U120...
  • Page 49 PSR-E473 PSR-E473 REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS UPPER CASE ASSEMBLY 上 ケ － ス Ａ ｓ ｓ ’ ｙ (VED5040) * U10 VFJ40500 UPPER CASE SUB ASSEMBLY SP 上ケ－ス ＳＵＢ Ａｓｓ ’ ｙ ＳＰ U10a UPPER CASE FINISHED (VED2300) 上...

  • Page 50: Lower Case Assembly

    PSR-E473 PSR-E473 ■ LOWER CASE ASSEMBLY LOWER CASE ASSEMBLY L100 REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS LOWER CASE ASSEMBLY 下 ケ － ス Ａ ｓ ｓ ’ ｙ (VED5030) * L10 VED50200 LOWER CASE SUB ASSEMBLY 下 ケ － ス サ ブ Ａ ｓ ｓ ’ ｙ...

  • Page 51: Lower Case Sub Assembly

    PSR-E473 PSR-E473 ■ LOWER CASE SUB ASSEMBLY LOWER CASE SUB ASSEMBLY S150 S140 S150 S140 S150 S140 S100 S100 REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS VED50200 LOWER CASE SUB ASSEMBLY 下 ケ － ス サ ブ Ａ ｓ ｓ ’ ｙ...

  • Page 52: Keyboard Assembly

    PSR-E473 PSR-E473 ■ KEYBOARD ASSEMBLY KEYBOARD ASSEMBLY K120 K151 K120 K100 K100 K100 K100 K152...
  • Page 53 PSR-E473 PSR-E473 REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS 16NS-C61 KEYBOARD 16NS 61 2M １ ６ Ｎ Ｓ － Ｃ ６ １ 鍵 盤 (VAX3100) ZE369800 WHITE KEY 16NS CEGB 白 鍵　 Ｃ Ｅ Ｇ Ｂ ZE3698I0 WHITE KEY 16NS CEGB 白...

  • Page 54: Electorical Parts

    PSR-E473 PSR-E473 ■ ELECTRICAL PARTS ELECTORICAL PARTS DMLCD REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS VDW98300 CIRCUIT BOARD DMLCD Ｐ Ｃ Ｂ　 Ｄ Ｍ Ｌ Ｃ Ｄ (VDW9820)(YM171E0) VDX18800 CIRCUIT BOARD AMPN Ｐ Ｃ Ｂ　 Ａ Ｍ Ｐ Ｎ...
  • Page 55 PSR-E473 DMLCD/AMPN/KNOB/PNR-T/JACK/ENC/PB/PNL-B/PLR-B/MVR MK-H and MK-L REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS * IC111 YM361C00 IC PROGRAM 書 込 済 Ｒ Ｏ Ｍ PROGRAM ROM * IC121 YM362B00 IC WAVE 書 込 済 Ｒ Ｏ Ｍ WAVE ROM...
  • Page 56 PSR-E473 MK-L REF NO. PART NO. DESCRIPTION 部 品 名 REMARKS VAX32300 CIRCUIT BOARD 16N 61 MK-L Ｐ Ｃ Ｂ　 Ｍ Ｋ － Ｌ (VAX3210)(VAX3210) VB941201 DIODE 1SS133,1SS176 TE-5 ダ イ オ ー ド VD631601 DIODE 1SS133,176,HSS104 ダ イ オ...

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