Yamaha Portatone PSR-640 + 740 Service Manual & Repair Guide

SERVICE MANUAL PK 001627 HAMAMATSU, JAPAN CONTENTS SPECIFICATIONS .............................................. 3/4 PANEL LAYOUT ...................................... 5 PSR-740 BLOCK DIAGRAM .... 6 PSR-640 BLOCK DIAGRAM .... 7 CIRCUIT BOARD LAYOUT ................. 8 DISASSEMBLY PROCEDURE ............................. 10 LSI PIN DESCRIPTION ............................... 14 IC BLOCK DIAGRAM .................................. 19 CIRCUIT BOARDS ........................................ 20 TEST PROGRAM ............................. 25/27 DATA INITIALIZATION .......................................... 29 ALERT MESSAGE LIST ................... 30/32 MIDI DATA FORMAT ................. 34 PSR-740 MIDI IMPLEMENTATION CHART ......................... 49 PSR-640 MIDI IMPLEMENTATION CHART ......................... 50 PARTS LIST OVERALL CIRCUIT DIAGRAM PSR-740 PSR-640 PSR-740 19990901-160000 PSR-640 19990901-120000 1.82K-9201 Printed in Japan ‘99.08

2 IMPOR TANT 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 under- stood by the users, and have therefore not been restated. WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in per- sonal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative. IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi- cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor’s Service Division. WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit. (Heavy gauge black wires connect to this bus.) IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. 2 PSR-740/PSR-640

3 Keyboards • 61 standard-size keys (C1 - C6) with touch response. Display • Large multi-function LCD display Setup • STANDBY/ON • Master Volume : MIN - MAX • Input Volume : MIC/LINE (PSR-740) Demo • PSR-740 : 10 Songs • PSR-640 : 8 Songs Language • English, German, French, Spanish, Italian, Japanese Realtime Controls • Pitch Bend wheel • Modulation wheel (PSR-740) Control & Number Buttons • VOICE L • VOICE R1 • VOICE R2 • FUNCTION • SONG • STYLE • TEMPO/TAP • TRANSPOSE • ACMP/SONG VOLUME • VOICE CHANGE • MIXER • ORGAN FLUTE (PSR-740) • GROOVE (PSR-740) • MULTI EFFECT (PSR-740) • VOCAL HARMONY (PSR-740) • DIRECT ACCESS • NEXT/BACK • EXIT • Data dial, [1] - [0], [+/YES], [–/NO] Voice PSR-740 • 267 Panel Voices +13 Drum Kits + 480 XG Voices + 1 Organ Voice • Polyphony : 64 PSR-640 • 223 Panel Voices +12 Drum Kits + 480 XG Voices • Polyphony : 32 • Voice Set • R1/R2/L Voices • Part on/off (R1/R2/L) • Voice Change : Voice number • Mixer : Volume • Parameter Edit : Octave, Pan, Reverb Depth, Chorus Depth, DSP Depth Organ Flutes (PSR-740) • Organ type : 8 types • Vibrato Speed • Attack Mode • Attack Footage • Length • Response • Footage Auto Accompaniment • 160 Styles • Accompaniment Track : RHYTHM1/2, BASS, CHORD 1/2, PAD, PHRASE1/2 • Accompaniment Track Settings : ON/ OFF • Accompaniment Control : ACMP ON/ OFF, SYNC START, SYNC STOP, START/STOP, COUNT INTRO (PSR-740), INTRO, MAIN/AUTO FILL, SIMPLE ENDING/rit. (PSR-740), ENDING/rit. • Beat Indicator • Accompaniment Volume • Voice Change : Voice number • Mixer : Volume • Parameter Edit : Pan, Reverb depth, Chorus depth, DSP depth (PSR-640) • One Touch Setting • Fingering Mode : Multi Finger/Single Finger/Fingered 1/Fingered 2/Full Keyboard Groove (PSR-740) • Groove type : 11 types • Dynamics type : 18 types Multi Pads • 36 Multi Pad Banks • 4 Pads + STOP • Chord Match • Naming Digital Effects PSR-740 • Reverb : 24 types • Chorus : 20 types • DSP (system/insertion) : 102 types • DSP1 - 3 (Multi Effect) : 74 types • DSP4 (microphone sound) : 74 types • Harmony/Echo : 22 types • Master EQ : 5types PSR-640 • Reverb : 24 types • Chorus : 16 types • DSP (system/insertion) : 74 types • Harmony/Echo : 22 types Registration Memory • 32 Registration Banks : 1 - 4 • Naming • Accompaniment Freeze Disk Operations • Song playback/recording • Load • Save • Utility : Format, Song Copy, Delete File Song • Song Volume • Song Track Settings : ON/OFF • Repeat Play • Song Transpose Song Recording • Quick Record, Multi Record • Recording Tracks: 1 - 16 • Punch In/Punch Out • Quantize • Naming • Clear • Setup Data : Volume, Octave, Pan, Reverb depth, Chorus depth, DSP depth Multi Pad Recording • User Pad Bank : 4 (37 - 40) • Naming • Clear • Chord Match Style Recording • User Styles : 3 (161 - 163) • Recording Tracks PSR-740 : 12 Sections x 8 tracks PSR-640 : 10 Sections x 8 tracks • Drum Cancel • Quantize • Naming • Clear • Ctab : MIDI • Transmit settings • Receive settings • Local Control • Clock • Initial Data Send • MIDI template Other functions • Metronome • Part Octave • Master Tuning • Scale Tuning • Split Point • Touch Sensitivity • Voice Set • Footswitch function • Foot Volume function • Pitch Bend Range • Modulation Wheel function (PSR-740) Auxiliary Jacks • DC IN 10-12V • PHONES • FOOT SWITCH • FOOT VOLUME • AUX OUT (R, L+R/L) • MIDI IN/OUT, TO HOST • MIC/LINE IN (PSR-740) Amplifiers • 6W + 6W Speakers • 12 cm (4-3/4") x 2 + 5cm x 2 Power Consumption • 24W Power Supply • Adaptor : Yamaha PA-6 power adaptor Rated Voltage DC 10-12V Rated Current 2A Dimensions (W x D x H) • 973 x 399 x 161 (mm) (38-5/16" x 15-11/16" x 6-5/16") Weight • PSR-740 : 10.2kg • PSR-640 : 10kg Supplied Accessories • Sample Disk • Music Stand • Owner’s Manual Optional Accessories • Headphones : HPE-150 • AC Power Adaptor : PA-6 • Foot Switch : FC4, FC5 • Keyboard Stand : L-6, L-7 SPECIFICATIONS PSR-740/PSR-640

4 PSR-740/PSR-640

5 PSR-740/PSR-640 PANEL LAYOUT GROOVE ON/OFF PART ON/OFF FINGERING ON/OFF REVERB DSP4 TALK VOICE L VOICE R1 VOICE R2 ACMP ON/OFF SYNC START SYNC STOP DISK IN USE MAIN/AUTO FILL COUNT INTRO INTRO ACMP SONG SIMPLE ENDING ENDING FREEZE BACK NEXT C1 CLICK 36 T 37 S 39 F1 41 R G1 43 L D2 50 M E2 52 H 42 44 A1 45 L B1 47 M C2 48 H 51 F2 L 53 G2 H 55 54 56 A2 57 L D3 62 H B2 59 M L C3 60 M H 58 61 C 1 A3 69 C 2 63 R 1 B3 71 R 2 E3 64 F3 65 R 66 G3 67 S 68 70 C4 72 H 73 L D4 74 75 H E4 76 L F4 77 H 78 L G4 79 H 80 L A4 81 82 B4 83 H C5 84 L 85 S 87 D5 86 L E5 88 H F5 89 L M 90 G5 O 91 A5 93 92 94 B5 95 D1 38 E1 40 46 49 C6 96 START/STOP MEMORY 1 2 3 4 REGISTRATION MEMORY ONE TOUCH SETTING STOP MULTI PAD 1 2 3 4 LOAD SAVE UTILITY DISK 12 13 14 15 16 EXIT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A B C D 1 2 3 4 5 6 7 8 9 10 11 q e #6 #7 !4 !5 #9 $0 #8 y u r !3 t w i o !0 !2 !1 !6 !7 !8 #0 #1 #2 #3 #4 #5 $1 $2 $4 $3 $5 $6 $7 $9 %0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SONG PART ON/OFF FINGERING VOICE L VOICE R1 VOICE R2 ACMP ON/OFF DISK IN USE LOAD SAVE UTILITY DISK MULTI PAD STOP 1 2 3 4 FREEZE MEMORY REGISTRATION MEMORY ONE TOUCH SETTING BACK NEXT EXIT C1 CLICK 36 T 37 S 39 F1 41 R G1 43 L D2 50 M E2 52 H 42 44 A1 45 L B1 47 M C2 48 H 51 F2 L 53 G2 H 55 54 56 A2 57 L D3 62 H B2 59 M L C3 60 M H 58 61 C 1 A3 69 C 2 63 R 1 B3 71 R 2 E3 64 F3 65 R 66 G3 67 S 68 70 C4 72 H 73 L D4 74 75 H E4 76 L F4 77 H 78 L G4 79 H 80 L A4 81 82 B4 83 H C5 84 L 85 S 87 D5 86 L E5 88 H F5 89 L M 90 G5 O 91 A5 93 92 94 B5 95 D1 38 E1 40 46 49 C6 96 MAIN/AUTO FILL SONG ACMP START/STOP A B C D INTRO ENDING 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PHONES ACCOMPANIMENT RHYTHM SUB RHYTHM MAIN BASS CHORD 1 CHORD 2 PAD PHRASE 1 PHRASE 2 1 2 3 4 SYNC START SYNC STOP q e #6 #7 !4 !5 $0 y u r !3 w o !0 !2 !1 !6 !7 @2 #0 #1 #2 #3 #4 #5 $1 $2 $4 $3 $5 $6 $9 %4 %5 %6 %7 %3 %2 %1 $8 $8 Top Panel Controls q STANDBY/ON switch w MASTER VOLUME control e DEMO/LANGUAGE button r HELP/DIRECT ACCESS button t INPUT VOLUME control (PSR-740) y RECORD button u DSP DSP1, DSP2, DSP3 (PSR-740) DSP (PSR-640) FAST/SLOW i MASTER EQ button (PSR-740) o HARMONY/ECHO button !0 TOUCH button !1 SUSTAIN button !2 BACK button, NEXT button !3 LCD display !4 VOICE CHANGE button !5 MIXER button !6 TRACK 1 - 16 buttons !7 EXIT button !8 ORGAN FLUTES button (PSR-740) !9 GROOVE button (PSR-740) @0 MULTI EFFECT button (PSR-740) @1 VOCAL HARMONY button (PSR-740) @2 VOICE L button @3 VOICE R1 button @4 VOICE R2 button @5 FUNCTION button @6 SONG button @7 STYLE button @8 TEMPO/TAP button @9 TRANSPOSE button #0 ACMP/SONG VOLUME button #1 Number buttons [1]-[0], [-/NO], [+/YES] #2 Data dial #3 DISK SAVE button LOAD button UTILITY button #4 SYNC STOP button #5 SYNC START button #6 ACMP ON/OFF button #7 FINGERING button #8 GROOVE ON/OFF button (PSR-740) #9 VOCAL HARMONY ON/OFF button (PSR-740) REVERB button (PSR-740) DSP4 button (PSR-740) TALK button (PSR-740) $0 PART ON/OFF VOICE L button VOICE R1 button VOICE R2 button $1 START/STOP button $2 Auto Accompaniment Section INTRO button COUNT INTRO button (PSR-740) MAIN A, B, C, D buttons ENDING button SIMPLE ENDING button (PSR-740) $3 REGISTRATION MEMORY buttons $4 ONE TOUCH SETTING buttons $5 MULTI PAD buttons $6 PITCH BEND wheel $7 MODULATION wheel (PSR-740) $8 Disk Drive $9 PHONES jack %0 MIC/LINE IN jack (PSR-740) Rear Panel Controls %1 FOOT VOLUME jack %2 TO HOST connector %3 HOST SELECT switch %4 MIDI IN/OUT connectors %5 FOOT SWITCH jack %6 AUX OUT R, L/L+R jacks %7 DC IN 10-12V jack PSR-740 PSR-640 PSR-740/PSR-640

6 PSR-740 BLOCK DIAGRAM PSR-740/PSR-640 28CA1-8814457 PN IC29 IC33 IC24 108 114 120 123 122 5 43 48 114 94,96 IC23 IC25 IC31 IC27 IC26 IC32 IC3 IC1 IC30 IC2 8 IC22 IC28 33 232 231 34 35 234 134 77 76,222,225 86,98,99 102,103 223,221 81 101 135 136 IC6 IC4 IC14 IC14 IC7 IC8 IC15 IC11 IC12 IC9 IC310 IC320 IC210,220 IC510 IC410 IC610 IC710 IC13 IC14 IC15 11 13 32 14 29 28 13 14 29 28 13 IC10 IC19 IC18 IC20 IC21 IC16 IC17 IC5 IC1 IC2 PC1 19 6 17 11 11 TA2 TA1 13 14 27 28 29 17-19 21 5 7 (1) 11 13 32 22 24 29 10 13 14 37 1 3 5 7 20 21 40 4 39 4 15 14 13 12 11 (2) (2) (1)

7 PSR-640 BLOCK DIAGRAM PSR-740/PSR-640 28CA1-8813472 IC190 IC260 IC200 IC600 IC290 IC370 IC610 IC900 IC610 IC310 IC210,220 IC320 IC510 IC410 IC610 IC710 IC1 PC1 IC360 IC360 IC350 IC330 IC300 IC320 IC310 IC510 TR501-505 IC530 IC500 11 IC430 IC420 IC410 IC400 IC800 19 6 17 10 13 14 37 1 3 5 7 20 21 40 4 39 11 13 14 31 30 22 24 29 11 13 32 (2) 11 13 32 (1) 4 15 14 13 12 11 25 158 159 163 164 IC210 12 74,73 43,44,101 IC 220 IC100 108 194 196 43 48 53 114 11 6 10 9 150 151 152 122 IRQFD

8 CIRCUIT BOARD LAYOUT PSR-740/PSR-640 Upper case LCD U LCD L Pitch bend wheel Modulation wheel ( PSR-740 only ) Keyboard assembly Lower case Floppy disk drive ( FDD ) AM ( HP ) Speaker L ( Woofer ) JACK Speaker R (Woofer) Speaker R (Tweeter) (AM) ( PSW ) Speaker L <Tweeter> ( VR ) <PSR-740 only> MKS3 MK-L ( PN2 ) ( ENC ) ( PN1 ) LCD L LCD U Back-lit assembly ( PN3 ) ( PN4 ) ( WH2 ) ( WH3 ) <PSR-740> <PSR-640> ( WH1 ) q q w w e e r r t y y u i o !0 !0 @4 @5 @6 @6 @7 @1 @8 #0 @9 #0 #1 #2 #2 @5 @4 !2 !3 !4 !4 !5 !5 !1 !6 !7 !8 !9 @0 @0 @0 @1 @2 @3 AM DM <PSR-740 only> MIC AM AM PN PN PN PN PN PN PN PN MK-H MIC-JACK INV @2 @3

9 PSR-740/PSR-640 REF. NO. q w e r t y u i o !0 !0!0 !0!0 !1 !1!1 !1!1 !2 !2!2 !2!2 !3 !3!3 !3!3 !4 !4!4 !4!4 !5 !5!5 !5!5 !6 !6!6 !6!6 !7 !7!7 !7!7 !8 !8!8 !8!8 !9 !9!9 !9!9 @0 @0@0 @0@0 @1 @1@1 @1@1 @2 @2@2 @2@2 @3 @3@3 @3@3 @4 @4@4 @4@4 @5 @5@5 @5@5 @6 @6@6 @6@6 @7 @7@7 @7@7 @8 @8@8 @8@8 @9 @9@9 @9@9 #0 #0#0 #0#0 #1 #1#1 #1#1 #2 #2#2 #2#2 MIC JACK-CN2 MIC JACK-CN1 MIC-CN2 Tweeter L/R DM-CN6 DM-CN730 INV-CN1 INV-CN1 FDD FDD FDD FDD AM(AM)-CN140 AM(AM)-CN410 AM(AM)-CN120 AM(AM)-CN320 AM(AM)-CN320 AM(AM)-CN310 AM(AM)-CN310 JACK-JK05 JACK-JK05 AM(AM)-CN110 MK-L MK-L MK-L MK-H Woofer L/R DM-CN11 DM-CN420 DM-CN9 DM-CN410 DM-CN12 DM-CN510 DM-CN10 DM-CN520 DM-CN4 DM-CN710 PN(PN1)-CN6A PN(PN1)-CN6A PN(PN1)-CN8A PN(PN1)-CN10A PN(PN1)-CN9A PN(PN1)-CN7A PN(PN1)-CN5A Back-lit assembly DM-CN3 MIC-CN1 DM-CN15 AM(AM)-CN610 MKS3-CN1 MKS3-CN1 DM-CN7 DM-CN930 DM-CN1 DM-CN850 DM-CN8 DM-CN920 AM(VR)-CN150 AM(HP)-CN420 AM(PSW)-CN130 DM-CN14 DM-CN610 DM-CN2 DM-CN910 DM-CN5 DM-CN720 JACK-JK09 MKS3-CN2 MK-H MKS3-CN3 MKS3-CN4 AM(AM)-CN620 LCD L LCD L LCD U LCD U PN(PN1)-CN2 PN(PN1)-CN2 PN(PN1)-CN1 PN(PN1)-CN1 PN(PN1)-CN8 PN(PN1)-CN8 PN(WH3)-CN6B PN(WH1)-CN11 PN(PN2)-CN8B PN(PN4)-CN10B PN(PN3)-CN9B PN(WH2)-CN7B PN(ENC)-CN5B INV-CN2 MICJ-DM MICJ-SH MICSH-DM TWEETER DM-MKS DM-MKS INV INV FDD FDD FDD FDD AM-VR AM-HP AM-PSW AM-DM1 AM-DM1 AM-DM2 AM-DM2 JACK JACK AM-JK (S4) (S5) (S6) (S7) WOOFER DM-LCD1 DM-LCD1 DM-LCD2 DM-LCD2 DM-PN1 DM-PN1 DM-PN2 DM-PN2 DM-PN3 DM-PN3 PN1-PB PN1-PB PN1-PN4 PN1-PN5 PN1-PN6 PN1-MOD PN1-ENC — 8P/L450 8P/L450 12P/L190 12P/L215 7P/L250 5P/L615 — V386730 V386740 V386750 V386350 V379860 V379860 V386760 V386760 V386630 V386630 V386640 V386640 V379800 V379810 V379820 V379840 V379840 V379850 V379850 VZ53110 VZ53110 V379830 VU95890 VU65950 VU65940 VU65960 V386340 V379910 V379910 V379920 V379920 V379880 V379880 V379890 V379890 V379900 V379900 V379940 V379940 V379950 V379960 V379970 V379980 V379990 — PSR-740only PSR-740only PSR-740only PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 PSR-740 PSR-640 DESTINATION CONNECTOR ASSEMBLY PIN/ LENGTH PART NO. REMARKS

10 PSR-740/PSR-640 [260]: Bind Head Tapping Screw-P 3.0 X 12 MFZN2Y (EP600300) [270A]: Bind Head Tapping Screw-P 3.0 X 25 MFZN2Y (VK228100) DISASSEMBLY PROCEDURE Fig.1 [260] [260] [260] [270A] [260] [260] 1. Lower Case Assembly 1-1 Remove the sixteen (16) screws marked [260] and the two (2) screws marked [270A]. The lower case assembly can then be removed. (Fig.1) 2. DM Circuit Board 2-1 Remove the lower case assembly. (See procedure 1.) 2-2 Remove the four (4) screws marked [240A] and the screws (PSR-740: 20pcs, PSR-640: 11pcs) marked [250A]. The shield cover L can then be removed. (Fig.2) 2-3 Remove the one (1) screw marked [250B]. The DM circuit board can then be removed. (Fig.3) 3. INV Circuit Board 3-1 Remove the lower case assembly. (See procedure 1.) 3-2 Remove the four (4) screws marked [250C]. The INV circuit board can then be removed. (Fig.2) 4. MIC Circuit Board (PSR-740 only) 4-1 Remove the lower case assembly. (See procedure 1.) 4-2 Remove the five (5) screws marked [240B]. The MIC circuit board can then be removed. (Fig.2) 5. MIC-JACK Circuit Board (PSR-740 only) 5-1 Remove the lower case assembly. (See procedure 1.) 5-2 Remove the three (3) screws marked [240C]. The MIC-JACK circuit board can then be removed. (Fig.2) 6. AM(AM), AM(PSW) and AM(VR) Circuit Boards 6-1 Remove the lower case assembly. (See procedure 1.) 6-2 AM(AM) Circuit Board: Remove the seven (7) screws marked [240D]. The AM(AM) circuit board can then be removed. (Fig.3) 6-3 AM(PSW) Circuit Board: Remove the two (2) screws marked [240E]. The AM(PSW) circuit board can then be removed. (Fig.3) 6-4 AM(VR) Circuit Board: Remove the three (3) screws marked [240F]. The AM(VR) circuit board can then be removed. (Fig.3)

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Yamaha Portatone PSR-640 + 740 Service Manual & Repair Guide

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