Yamaha Portatone PSR-740 Service Manual

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[Page 1] Yamaha PSR-740

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...

[Page 2] Yamaha PSR-740

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 k...

[Page 3] Yamaha PSR-740

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 Son...

[Page 4] Yamaha PSR-740

4 PSR-740/PSR-640 ...

[Page 5] Yamaha PSR-740

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 STARTSYNC STOP DISK IN USE MAIN/AUTO FILL COUNT INTRO INTRO ACMP SONG SIMPLE ENDING ENDING FREEZE BACK NEXT C1 CLICK...

[Page 6] Yamaha PSR-740

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 IC...

[Page 7] Yamaha PSR-740

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 IC330IC300IC320IC310 IC510 TR501-505 IC530 IC500 11 IC430 IC420 IC410 ...

[Page 8] Yamaha PSR-740

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)...

[Page 9] Yamaha PSR-740

9 PSR-740/PSR-640 REF. NO. qq qq q ww ww w ee ee e rr rr r tt tt t yy yy y uu uu u ii ii i oo oo 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@...

[Page 10] Yamaha PSR-740

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...

[Page 11] Yamaha PSR-740

11 PSR-740/PSR-640 [240A] [250A] [250A] [250A][240A] [240A] [250A] [240C] [240B][250C][250C] [240A] [250A] [250A] [240B] INV MIC MIC-JACK Upper case side Shield cover L [ 190F ] X 30 [ 190F ] X 3 [ 190G ] X 4 [ 190M ][ 190K ] X 4 Back-lit assembly LC...

[Page 12] Yamaha PSR-740

PSR-740/PSR-640 [140] [140] 15. FDD 15-1 Remove the lower case assembly. (See procedure 1.) 15-2 Remove the four (4) screws marked [60]. The FDD assembly can then be removed. (Fig.5) 15-3 Remove the four (4) screws marked [40]. The FDD holder L and R...

[Page 13] Yamaha PSR-740

13 PSR-740/PSR-640 17. Assembling the keyboard assembly 17-1 Install the white keys CEGB from the lower notes, and then install the DFA keys and C' key. Afterwards install the black keys from the higher notes, and tighten the twenty- one (21) sc...

[Page 14] Yamaha PSR-740

14 PSR-740/PSR-640 1 /WRHH/PA23 O HH write/Port A 73 D15 I/O 2 DACK0/PE14 O DMA transfer strobe/Port E 74 D14 I/O Data bus 3 /WRHL/PA22 O HL write/Port A 75 D13 I/O 4 /CASHH/PA21 I/O HH Column address strobe/Port A 76 D12 I/O 5 DACK1/PE15 O DMA trans...

[Page 15] Yamaha PSR-740

15 PSR-740/PSR-640 HG73C205AFD (XU947C00) SWX00B TONE GENERATOR 1 ICN I Initial clear 85 CMA3 O Program address bus 2 RFCLKI I PLL Clock 86 CMA8 O Program address bus 3 TM2 I PLL Control 87 CMA2 O Program address bus 4 AVDD_PLL Power supply 88 CRD ...

[Page 16] Yamaha PSR-740

16 PSR-740/PSR-640 TC203C760HF-002 (XS725A00) SWP30B (AWM Tone Generator coped with MEG) Standard Wave Processor () PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 ...

[Page 17] Yamaha PSR-740

17 PSR-740/PSR-640 YSS236-F (XT013A00) VOP3 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69...

[Page 18] Yamaha PSR-740

18 PSR-740/PSR-640 1 AINR+ I Analog signal input (R channel +) 13 DGND - Digital ground 2 AINR- I Analog signal input (R channel -) 14 TST4 I/O Test mode setting 4 3 VREF O Reference voltage 15 AMODE2 Interface clock select 2 4 VA - Analog power supp...

[Page 19] Yamaha PSR-740

SN74HCU04NSR (XC723A00) SN74HCU04N (IG142250) Hex Inverter 1 2 3 4 5 6 7 1A 1Y 2A 2Y 3A 3Y Vss 14 13 12 11 10 9 8 VDD 6A 6Y 5A 5Y 4A 4Y SN74HC08NSR (XD831A00) HD74LVC08FP (XU720A00) Quad 2 Input AND 1 2 3 1A 1Y 42A 52B 62Y 7 VSS 1B 14 13 12 VDD 4A ...

[Page 20] Yamaha PSR-740

20 CIRCUIT BOARDS DM Circuit Board (PSR-740) Component side TR1 installation 2NA-V320040-1 0 PSR-740/PSR-640 Bind head tapping screw-B 3.0 X 8 (EP600190) DM Note: See parts list for details of circuit board component parts. ...

[Page 21] Yamaha PSR-740

MASTER VOLUME STANDBY/ON PHONES 21 DM Circuit Board 〈 PSR-740 〉 DM: 2NA-V320040-1 0 IC710 HS100 (Heat Sink) Bind head tapping screw-B 3.0 X 8 (EP600190) 2pcs Bind head tapping screw-B 3.0 X 10 (EP600220) 2pcs Grease AM (AM) IC310 20mm ...

[Page 22] Yamaha PSR-740

22 PSR-740/PSR-640 DM Circuit Board 〈 PSR-640 〉 Component side Pattern side 2NA-V350510-1,2 1 ...

[Page 23] Yamaha PSR-740

23 PSR-740/PSR-640 PN (PN1) Circuit Board Component side 2NA-V386670 Data dial PN (PN2) Circuit Board PN (PN3) Circuit Board PN (PN4) Circuit Board PN (ENC) Circuit Board PN (WH3) Circuit Board 〈 PSR-740 〉 PN (WH2) Circuit Board ...

[Page 24] Yamaha PSR-740

24 JACK Circuit Board Component side JACK: 2NA-V463930 INV: 2NA-V420050 MIC,MIC-JACK: 2NA-V420190 FOOT VOLUME TO HOST Mac/PC1/PC2/MIDI MIDI IN MIDI OUT FOOT SW. R L/L+R DC-IN AUX OUT INPUT VOL PSR-740/PSR-640 MK-L Circuit Board MK-H Circuit Boa...

[Page 25] Yamaha PSR-740

25 PSR-740/PSR-640 TEST NO. LCD (initial) Test Functions and Judgment Criteria TEST PROGRAM A. PREPARATION 1) PA-6 (AC adaptor) is used. 2) The volume is usually moved to the use position when no volume change is required. 3) Measuring instruments: f...

[Page 26] Yamaha PSR-740

26 PSR-740/PSR-640 15 015: Output L Connect the level meter (with a JIS-C filter) to the [PHONES] jack. (33 ohm load) Set the [MASTER VOLUME] at maximum and check the output level (1 kHz). PHONES L: -8.0 dBm +/- 2 dB PHONES R: less than -50.0 dBm Con...

[Page 27] Yamaha PSR-740

27 PSR-740/PSR-640 ...

[Page 28] Yamaha PSR-740

28 PSR-740/PSR-640 ...

[Page 29] Yamaha PSR-740

29 PSR-740/PSR-640 CAUTION • All registration and User Style/Pad memory data, plus the other settings listed above, will be erased and/or changed when the data initialization procedure is carried out. • Carrying out the data initialization proce...

[Page 30] Yamaha PSR-740

30 PSR-740/PSR-640 ALERT MESSAGE LIST The file is a purposely “copy-protected” disk. The Copy function is not possible. The disk contains no file to be loaded, copied, or be deleted. Insert the disk that contains files to be loaded, copied, or d...

[Page 31] Yamaha PSR-740

31 PSR-740/PSR-640 This message appears when you attempt to edit, quantize or clear the track which contains no data in the Record mode. This message indicates that recording a new User style cannot be started when all three User styles have recorded...

[Page 32] Yamaha PSR-740

32 PSR-740/PSR-640 ...

[Page 33] Yamaha PSR-740

33 PSR-740/PSR-640 ...

[Page 34] Yamaha PSR-740

34 PSR-740/PSR-640 MIDI → NOTE OFF 8nH IN NOTE ON/OFF 9nH CONTROL CHANGE BANK SELECT MSB BnH,00H BANK SELECT LSB BnH,20H MODULATION BnH,01H PORTAMENTO TIME BnH,05H DATA ENTRY MSB BnH,06H DATA ENTRY LSB BnH,26H MAIN VOLUME BnH,07H PANPOT BnH,0AH ...

[Page 35] Yamaha PSR-740

35 PSR-740/PSR-640 VOCAL HARMONY HARMONY MUTE BnH,63H,00H,62H,01H,06H,mmH (PSR-740 ONLY) DETUNE MODULATION BnH,63H,01H,62H,1AH,06H,mmH (PSR-740 ONLY) HARMONY1 VOLUME BnH,63H,02H,62H,10H,06H,mmH (PSR-740 ONLY) HARMONY2 VOLUME BnH,63H,02H,62H,11H,06H,m...

[Page 36] Yamaha PSR-740

36 PSR-740/PSR-640 (3-2-2) RESET ALL CONTROLLERS (Receive only) (CONTROL NUMBER = 79H , DATA VALUE = 0) Resets controllers as follows. PITCH BEND CHANGE 0 (Center) AFTER TOUCH 0 (min.) MODULATION 0 (min.) EXPRESSION 127 (max.) SUSTAIN 0 (off) SOSTENU...

[Page 37] Yamaha PSR-740

37 PSR-740/PSR-640 (3-6-1-2) TEMPO CONTROL binary hexadecimal 11110000 F0 Exclusive status 01000011 43 YAMAHA ID 01111110 7E Style 00000000 01 0ttttttt TT Tempo4 0ttttttt TT Tempo3 0ttttttt TT Tempo2 0ttttttt TT Tempo1 11110111 F7 End of Exclusive Th...

[Page 38] Yamaha PSR-740

38 PSR-740/PSR-640 (3-6-4) CLAVINOVA MIDI COMPLIANCE (3-6-4-1) DOC MULTI TIMBRE ON / OFF (Receive only) binary hexadecimal 11110000 F0 Exclusive status 01000011 43 YAMAHA ID 01110011 73 Clavinova ID 00000001 01 Clavinova commmon ID 00010nnn 1N N: 3(D...

[Page 39] Yamaha PSR-740

39 PSR-740/PSR-640 < Table 1-1> Parmeter Basic Address Parameter Change Address (H) (M) (L) Description SYSTEM 00 00 00 System 00 00 7D Drum Setup Reset 00 00 7E XG System On 00 00 7F All Parameter Reset INFORMATION 01 00 00 System Information ...

[Page 40] Yamaha PSR-740

40 PSR-740/PSR-640 Address Size Data Prameter Name Description Default Value (H) (H) (H) (H) 02 01 40 2 00..7F Variation Type MSB Refer to the Ef. Type List 05(=DELAY L,C,R) 00..7F Variation Type LSB 00 : basic type 00 42 2 00..7F Vari. Param. 1 MSB ...

[Page 41] Yamaha PSR-740

41 PSR-740/PSR-640 03 0n 30 2 00..7F Ins. Param.1 MSB Refer to the Ef. Parameter List Depend on Insertion Type 00..7F Ins. Param.1 LSB Refer to the Ef. Parameter List Depend on Insertion Type 03 0n 32 2 00..7F Ins. Param.2 MSB Refer to the Ef. Parame...

[Page 42] Yamaha PSR-740

42 PSR-740/PSR-640 nn 1D 1 28..58 MW Pitch Control -24..+24[semitones] 40 nn 1E 1 00..7F MW Filter Control -9600..+9450[cent] 40 nn 1F 1 00..7F MW Amp. Control -100..+100[%] 40 nn 20 1 00..7F MW LFO PMod Depth 0..127 0A nn 21 1 00..7F MW LFO FMod Dep...

[Page 43] Yamaha PSR-740

43 PSR-740/PSR-640 < Table 1-11 > Effect Type List XG ESSENTIAL EFFECT Same as LSB=0 XG OPTION EFFECT XG OPTION EFFECT(Only PSR-740) Expanded type for PSR-740/640 * If the received value does not contain an effect type in the TYPE LSB, the LSB ...

[Page 44] Yamaha PSR-740

44 PSR-740/PSR-640 VARIATION TYPE (0-63) (PSR-740) TYPE MSB TYPE LSB DEC HEX 00 01 02 03...07 08 09...15 16 17 18 19 20 000 00 NO EFFECT 001 01 [1]HALL1 [5]HALL2 [2]HALL2 [3]HALL3 [4]HALL4 002 02 [10]ROOM1 [11]ROOM2 [12]ROOM3 [6]ROOM1 [7]ROOM2 [8]ROO...

[Page 45] Yamaha PSR-740

45 PSR-740/PSR-640 HALL1,HALL2, ROOM1,ROOM2,ROOM3, STAGE1,STAGE2, PLATE (reverb, variation, insertion block) No. Parameter Display Value See Table Comment Control 1 Reverb Time 0.3-30.0s 0-69 table#4 2 Diffusion 0-10 0-10 3 Initial Delay 0.1mS-99.3mS...

[Page 46] Yamaha PSR-740

46 PSR-740/PSR-640 AMBIENCE (variation block) No. Parameter Display Value See Table Comment Control 1 Delay Time 0.0mS-50mS 0-127 table#2 2 Output Phase normal/invers 0-1 3 4 5 6 EQ Low Frequency 32Hz-2.0kHz 4-40 table#3 7 EQ Low Gain -12-+12dB 52-76...

[Page 47] Yamaha PSR-740

47 PSR-740/PSR-640 TOUCH WAH 1 (variation, insertion block), TOUCH WAH+DIST (variation block) No. Parameter Display Value See Table Comment Control 1 Sensitive 0-127 0-127 2 Cutoff Frequency Offset 0-127 0-127 ● 3 Resonance 1.0-12.0 10-120 4 5 6 EQ...

[Page 48] Yamaha PSR-740

48 PSR-740/PSR-640 Table#11 Reverb Width;Depth;Height Data Value Data Value Data Value Data Value 0 0.5 32 8.8 64 17.6 96 27.5 1 0.8 33 9.1 65 17.9 97 27.8 2 1.0 34 9.4 66 18.2 98 28.1 3 1.3 35 9.6 67 18.5 99 28.5 4 1.5 36 9.9 68 18.8 100 28.8 5 1.8 ...

[Page 49] Yamaha PSR-740

49 PSR-740/PSR-640 PSR-740 MIDI IMPLEMENTATION CHART [Portable Keyboard] Date :3-MAR-1999 Model : PSR-740 MIDI Implementation Chart Version : 1.0 Function... Transmitted Recognized Remarks Basic Default 1 - 16 *1 1 - 16 *2 Channel Changed 1 - 16 *1 ...

[Page 50] Yamaha PSR-740

50 PSR-740/PSR-640 PSR-640 MIDI IMPLEMENTATION CHART [Portable Keyboard] Date :3-MAR-1999 Model : PSR-640 MIDI Implementation Chart Version : 1.0 Function... Transmitted Recognized Remarks Basic Default 1 - 16 *1 1 - 16 *2 Channel Changed 1 - 16 *1 ...

[Page 51] Yamaha PSR-740

CONTENTS PSR-740 OVERALL ASSEMBLY ....................................2 PSR-640 OVERALL ASSEMBLY ...................................4 UPPER CASE ASSEMBLY ................................................ 6 LOWER CASE ASSEMBLY ..........................

[Page 52] Yamaha PSR-740

PSR-740/PSR-640 2 PSR-740 OVERALL ASSEMBLY 340 110 120 100 130 010 160 057 050 (VR) (HP) (AM) 050 050 (PSW) 150 055 240 240 240 180 330 240 240 180 170 330 240 020 210 292 200 250 240 040 250 282 190 250 270 070 185 290 350 270 290 050 240 260 140 14...

[Page 53] Yamaha PSR-740

PSR-740/PSR-640 3 * * * * * * * * * * * * * * : New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK RANK: Japan only OVERALL ASSEMBLY PSR-740 010 Upper Case Assembly 020 Shield Cover U 030 Circuit Board DM 040 Shield Cover L 050 Circuit Board AM...

[Page 54] Yamaha PSR-740

PSR-740/PSR-640 4 PSR-640 OVERALL ASSEMBLY 110 120 100 130 010 050 (VR) 050 (AM) 050 (PSW) 240 240 180 330 240 240 180 330 240 020 210 292 200 250 240 040 250 282 190 250 270 070 185 290 270 290 050 (HP) 240 260 140 145 270 260 080 240 240 030 Music ...

[Page 55] Yamaha PSR-740

PSR-740/PSR-640 5 * * * * * * * * * * * * * REF NO. PART NO. DESCRIPTION REMARKS QTY RANK OVERALL ASSEMBLY PSR-640 010 Upper Case Assembly 020 Shield Cover U 030 Circuit Board DM 040 Shield Cover L 050 Circuit Board AM 060 Circuit Board INV 070 Keybo...

[Page 56] Yamaha PSR-740

PSR-740/PSR-640 6 • PSR-740 010d 100a 100b 010b 010e 180 190 120 270 280 290 130 010 135 300 260 132 190 190 020 060 100 200 110 190 050 (WH3) (WH2) (PN4) (PN3) (PN2) (PN1) (ENC) 050 050 050 050 050 050 240 320 010c 010a 330 190 210 230 040 250 03...

[Page 57] Yamaha PSR-740

7 * * * * * * * * * * * * * * * * * * * * * * * * REF NO. PART NO. DESCRIPTION REMARKS QTY RANK UPPER CASE ASSEMBLY PSR-740/PSR-640 Upper Case Assembly PSR-740 Upper Case Assembly PSR-640 010 Upper Case Sub Assembly PSR-740 010 Upper Case Sub Assembl...

[Page 58] Yamaha PSR-740

* * REF NO. PART NO. DESCRIPTION REMARKS QTY RANK LOWER CASE ASSEMBLY PSR-740/PSR-640 010 Lower Case Sub Assembly 020 Circuit Board JACK 030 Floppy Disk Drive Assembly 040 Cover, FDD 05 050 Bind Head Tapping Screw-P 3.0X8 MFZN2Y 10 01 060 Bind Head...

[Page 59] Yamaha PSR-740

PSR-740/PSR-640 9 : New Parts RANK: Japan only 140 90 60 60b 80 60 50 30 S7 S2 S6 S4 S5 S1 S3 110 100 120 160 120 120 120 120 130 60a Circuit board assembly KEYBOARD ASSEMBLY REF NO. PART NO. DESCRIPTION REMARKS QTY RANK KEYBOARD ASSEMBLY 16M C61 ...

[Page 60] Yamaha PSR-740

PSR-740/PSR-640 10 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * * * * * * * * * * * ELECTRICAL PARTS PSR-740/640 Circuit Board AM PSR-740 Circuit Board AM PSR-640 Circuit Board DM PSR-740 Circuit Board DM PSR-640 Ci...

[Page 61] Yamaha PSR-740

PSR-740/PSR-640 11 : New Parts RANK: Japan only * REF NO. PART NO. DESCRIPTION REMARKS QTY RANK C0412 Electrolytic Cap. 47.00 16.0V 01 C0501 Electrolytic Cap.-BP 10.00 16.0V 01 C0502 Electrolytic Cap.-BP 10.00 16.0V 01 C0503 Ceramic Capacitor-SL ...

[Page 62] Yamaha PSR-740

PSR-740/PSR-640 12 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK R0105 Carbon Resistor 2.2K 1/4 J 01 R0106 Carbon Resistor 2.2K 1/4 J 01 R0202 Carbon Resistor 3.3K 1/4 J 01 R0203 Carbon Resistor 22.0K 1/4 J 01 R0204 Carb...

[Page 63] Yamaha PSR-740

PSR-740/PSR-640 13 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * R0604 Carbon Resistor 2.2K 1/4 J PSR-640 01 R0605 Carbon Resistor 2.2K 1/4 J 01 R0701 Carbon Resistor 47.0K 1/4 J 01 R0702 Carbon Resistor 47.0K 1/4 J 01...

[Page 64] Yamaha PSR-740

PSR-740/PSR-640 14 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK C0049 Monolithic Ceramic Cap. B 470P 50V K 01 C0050 Monolithic Ceramic Cap. SL 27P 50V J 01 C0051 Monolithic Ceramic Cap. SL 27P 50V J 01 C0052 Monolith...

[Page 65] Yamaha PSR-740

PSR-740/PSR-640 15 : New Parts RANK: Japan only * * REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * * * * * * C0162 Monolithic Ceramic Cap. F 0.010 50V Z 01 C0163 Electrolytic Cap. 10.00 16.0V 01 C0164 Electrolytic Cap. 10.00 16.0V 01 C0165 Mono...

[Page 66] Yamaha PSR-740

PSR-740/PSR-640 16 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK IC032 IC PCM1716E DAC 06 IC033 IC M5223AFP OP AMP L0001 Coil SNT-D20TF 10uH 03 L0002 Chip Inductance BK2125HM601-T 01 -0011 Chip Inductance BK2125HM601-T 0...

[Page 67] Yamaha PSR-740

PSR-740/PSR-640 17 : New Parts RANK: Japan only * * * * REF NO. PART NO. DESCRIPTION REMARKS QTY RANK -0099 Carbon Resistor (chip) 47.0 0.1 J 01 R0100 Carbon Resistor (chip) 10.0K 0.1 J 01 R0101 Carbon Resistor (chip) 220.0 0.1 J 01 -0108 Carbon Res...

[Page 68] Yamaha PSR-740

PSR-740/PSR-640 18 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK C0205 Monolithic Ceramic Cap. SL 100P 50V J 01 C0208 Monolithic Ceramic Cap. SL 22P 50V J 01 C0209 Monolithic Ceramic Cap. SL 22P 50V J 01 C0210 Electrol...

[Page 69] Yamaha PSR-740

PSR-740/PSR-640 19 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK    * * * * * * * C0802 Electrolytic Cap. 100.00 10.0V 01 C0803 Monolithic Ceramic Cap. F 0.010 50V Z 01 C0901 Monolithic Ceramic Cap. F 0.010 50V...

[Page 70] Yamaha PSR-740

PSR-740/PSR-640 20 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK R0121 Carbon Resistor (chip) 47.0K 0.1 J 01 R0122 Carbon Resistor (chip) 47.0K 0.1 J 01 R0125 Carbon Resistor (chip) 47.0K 0.1 J 01 -0128 Carbon Resistor (...

[Page 71] Yamaha PSR-740

PSR-740/PSR-640 21 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * * * * * * X0801 Ceramic Resonator 16.00M CSTCV16.0 ZD911 Zener Diode UDZS5.6BTE-17 5.6V 01 Circuit Board INV Jumper Wire 0.55 C0001 Electrolytic Cap. (...

[Page 72] Yamaha PSR-740

PSR-740/PSR-640 22 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * * * * * * R011 Carbon Resistor 10.0K 1/4 J 01 -014 Carbon Resistor 10.0K 1/4 J 01 R015 Carbon Resistor 220.0 1/4 J 01 R016 Carbon Resistor 220.0 1/4 J ...

[Page 73] Yamaha PSR-740

PSR-740/PSR-640 23 : New Parts RANK: Japan only * * * * REF NO. PART NO. DESCRIPTION REMARKS QTY RANK                      Wire Trap 52147 12P TE 01 Wire Trap 52147 5P TE 01 Circuit Boa...

[Page 74] Yamaha PSR-740

PSR-740/PSR-640 24 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK LD020 LED SLZ-190B-17-T1 RE VOICE R2 01 LD021 LED SLZ-190B-03 RE MAIN D 01 LD023 LED SLZ-190B-17-T1 RE PSR-740 FAST/SLOW 01 LD024 LED SLZ-190B-17-T1 RE TO...

[Page 75] Yamaha PSR-740

PSR-740/PSR-640 25 : New Parts RANK: Japan only REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * * SW503 Tact Switch SKQNAE025A STYLE,6,PAD4,VOICE L, 01 -508 Tact Switch SKQNAE025A MAIN B,FREEZE 01 SW509 Tact Switch SKQNAE025A PSR-740 INTRO1 01 SW...

[Page 76] Yamaha PSR-740

CPU 12 11 10 9 8 7 6 5 4 3 2 1 ABCDEFGH I JKLMNOPQ 12 11 10 9 8 7 6 5 4 3 2 1 ABCDEFGH I JKLMNOPQ PSR-740 CIRCUIT DIAGRAM (DM1/2, MKS3, MKH, MKL, INV) PSR-740 PSR-740 PSR-740 MKS3 MKH DM MKL INV L C D to Back - light Assembly Floppy Disk Drive to ...

[Page 77] Yamaha PSR-740

12 11 10 9 8 7 6 5 4 3 2 1 ABCDEFGH I JKLMNOPQ 12 11 10 9 8 7 6 5 4 3 2 1 ABCDEFGH I JKLMNOPQ PSR-740 CIRCUIT DIAGRAM (DM2/2, MIC-JACK, MIC) PSR-740 PSR-740 PSR-740 DM to DM-CN3 to AM-CN320 MIC MIC-JACK SWP30B VOP3 INVERTER INVERTER WAVE ROM LL 32M W...

[Page 78] Yamaha PSR-740

CPU 12 11 10 9 8 7 6 5 4 3 2 1 ABCDEFGH I JKLMNOPQ 12 11 10 9 8 7 6 5 4 3 2 1 ABCDEFGH I JKLMNOPQ PSR-640 CIRCUIT DIAGRAM (DM, MKS3, MKH, MKL, INV) PSR-640 PSR-640 PSR-640 MKS3 MKH DM MKL INV to JACK-JK5 to PN1-CN8 to AM - CN320 to AM - CN310 L C D...

[Page 79] Yamaha PSR-740

12 11 10 9 8 7 6 5 4 3 2 1 ABCDEFGH I JKLMNOPQ 12 11 10 9 8 7 6 5 4 3 2 1 ABCDEFGH I JKLMNOPQ PSR-740 / PSR-640 OVERALL CIRCUIT DIAGRAM (AM, HP, P.SW, VR, JACK, PN1, PN2, PN3, PN4, WH1, WH2, WH3, ENC) PSR-740 / PSR-640 PSR-740 / PSR-640 PSR-740 / P...