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Yamaha EZ-AG, Service Manual

The Yamaha EZ-AG Service Manual is a comprehensive guide that offers detailed instructions and valuable insights on operating and maintaining your EZ-AG music instrument. Download this manual for free from manualshive.com, and unlock the full potential of your Yamaha EZ-AG with ease and confidence.

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EZ-AG

9

: New Parts

REF NO.

PART NO.

DESCRIPTION

REMARKS

QTY

RANK

RANK: Japan only

R0049

Carbon Resistor (chip)

390.0K 63M J

01

R0050

Carbon Resistor (chip)

5.6K 63M J

01

R0051

Carbon Resistor (chip)

100.0K 63M J

01

R0052

Carbon Resistor (chip)

0 63M J

01

R0053

Carbon Resistor (chip)

56.0K 63M J

01

-0057

Carbon Resistor (chip)

56.0K 63M J

01

R0058

Carbon Resistor (chip)

390.0K 63M J

01

R0059

Carbon Resistor (chip)

390.0K 63M J

01

R0060

Carbon Resistor (chip)

5.6K 63M J

01

R0061

Carbon Resistor (chip)

100.0K 63M J

01

-0066

Carbon Resistor (chip)

100.0K 63M J

01

R0070

Carbon Resistor (chip)

100.0K 63M J

01

R0071

Carbon Resistor (chip)

10.0M 63M J

01

R0072

Carbon Resistor (chip)

1.0K 63M J

01

R0073

Carbon Resistor (chip)

100.0K 63M J

01

R0075

Carbon Resistor (chip)

4.7M 63M J

01

R0077

Carbon Resistor (chip)

22.0K 63M J

01

R0079

Carbon Resistor (chip)

4.7M 63M J

01

R0081

Carbon Resistor (chip)

22.0K 63M J

01

R0083

Carbon Resistor (chip)

4.7M 63M J

01

R0085

Carbon Resistor (chip)

22.0K 63M J

01

R0087

Carbon Resistor (chip)

4.7M 63M J

01

R0089

Carbon Resistor (chip)

22.0K 63M J

01

R0091

Carbon Resistor (chip)

4.7M 63M J

01

R0093

Carbon Resistor (chip)

22.0K 63M J

01

R0094

Carbon Resistor (chip)

3.9K 63M J

01

R0095

Carbon Resistor (chip)

1.0K 63M J

01

R0101

Carbon Resistor (chip)

220.0 63M J

01

R0102

Carbon Resistor (chip)

56.0 63M J

01

-0104

Carbon Resistor (chip)

56.0 63M J

01

R0105

Carbon Resistor (chip)

47.0K 63M J

01

R0106

Carbon Resistor (chip)

47.0K 63M J

01

R0107

Carbon Resistor (chip)

56.0 63M J

01

-0110

Carbon Resistor (chip)

56.0 63M J

01

R0111

Carbon Resistor (chip)

47.0K 63M J

01

R0112

Carbon Resistor (chip)

47.0K 63M J

01

R0113

Carbon Resistor (chip)

56.0 63M J

01

-0116

Carbon Resistor (chip)

56.0 63M J

01

R0117

Carbon Resistor (chip)

47.0K 63M J

01

-0120

Carbon Resistor (chip)

47.0K 63M J

01

R0301

Carbon Resistor (chip)

4.7K 63M J

01

R0310

Carbon Resistor (chip)

0 63M J

01

R0311

Carbon Resistor (chip)

0 63M J

01

R0501

Carbon Resistor (chip)

2.2K 63M J

01

R0502

Carbon Resistor (chip)

22.0K 63M J

01

R0503

Carbon Resistor (chip)

10.0K 63M J

01

R0504

Carbon Resistor (chip)

2.2K 63M J

01

R0505

Carbon Resistor (chip)

2.2K 63M J

01

R0506

Carbon Resistor (chip)

22.0K 63M J

01

R0507

Carbon Resistor (chip)

10.0K 63M J

01

R0508

Carbon Resistor (chip)

2.2K 63M J

01

R0509

Carbon Resistor (chip)

47.0 63M J

01

R0510

Carbon Resistor (chip)

47.0 63M J

01

R0511

Carbon Resistor (chip)

10.0 63M J

01

R0520

Carbon Resistor (chip)

1.0K 63M J

01

R0521

Carbon Resistor (chip)

270.0 63M J

01

R0523

Carbon Resistor (chip)

2.7K 63M J

01

R0527

Carbon Resistor (chip)

1.0 0.1 J

01

R0528

Carbon Resistor (chip)

1.0 0.1 J

01

R0529

Carbon Resistor (chip)

3.3K 63M J

01

R0530

Carbon Resistor (chip)

1.0K 63M J

01

R0604

Carbon Resistor (chip)

56.0K 63M J

01

R0611

Carbon Resistor (chip)

100.0K 63M J

01

R0701

Carbon Resistor (chip)

4.7K 63M J

01

-0703

Carbon Resistor (chip)

4.7K 63M J

01

R0705

Carbon Resistor (chip)

680.0 63M J

01

-0707

Carbon Resistor (chip)

680.0 63M J

01

R0709

Carbon Resistor (chip)

10.0K 63M J

01

R0710

Carbon Resistor (chip)

220.0 63M J

01

X0102

Quartz Crystal Unit

8.4672MHz SMD-49

03

RD358390
RD356560
RD358100
RD350000
RD357560
RD357560
RD358390
RD358390
RD356560
RD358100
RD358100
RD358100
RD35A100
RD356100
RD358100
RD359470
RD357220
RD359470
RD357220
RD359470
RD357220
RD359470
RD357220
RD359470
RD357220
RD356390
RD356100
RD355220
RD354560
RD354560
RD357470
RD357470
RD354560
RD354560
RD357470
RD357470
RD354560
RD354560
RD357470
RD357470
RD356470
RD350000
RD350000
RD356220
RD357220
RD357100
RD356220
RD356220
RD357220
RD357100
RD356220
RD354470
RD354470
RD354100
RD356100
RD355270
RD356270
RD253100
RD253100
RD356330
RD356100
RD357560
RD358100
RD356470
RD356470
RD355680
RD355680
RD357100
RD355220
V Z 7 0 3 6 0 0

Summary of Contents for EZ-AG

Page 1: ...DF K167 03 11 HAMAMATSU JAPAN CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 CIRCUIT BOARD LAYOUT 5 BLOCK DIAGRAM 6 DISASSEMBLY PROCEDURE 7 LSI PIN DESCRIPTION 9 IC BLOCK DIAGRAM 11 CIRCUIT BOARDS 12 TEST PROGRAM 16 INSPECTION 18 MIDI IMPLEMENTATION CHART 19 PARTS LIST OVERALL CIRCUIT DIAGRAM ...

Page 2: ... 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 applic...

Page 3: ...BY ON switch STRUM button CHORD button BOTH button DEMO button SOUND button SONG button TEMPO button VOLUME button CAPO button TUNING button VALUE buttons 25 additional songs can be loaded into internal memory from a computer 32 280 0 127 0 127 0 6 28 tuning settings in addition to normal DC IN 12V PHONES OUTPUT MIDI IN and MIDI OUT 3 3 W When using PA 3C AC adaptor 1 4 W batteries Output impedanc...

Page 4: ...G button 11 TEMPO button 12 CAPO button 13 SONG button 14 SOUND button 15 DEMO button 16 PLAY MODE 1 STRUM 2 CHORD 3 BOTH buttons 4 Strings 5 Bridge Plate 6 Connector Power Switch Section 17 Power Switch STANDBY ON 18 DC IN 12V jack 20 MIDI IN MIDI OUT connectors 19 PHONES OUTPUT jack Body PANEL LAYOUT Control Section Connector Power Switch Section ...

Page 5: ...embly Strings sensor unit Bottom assembly Top assembly Battery cover assembly Bottom view Top view Bottom view Bottom view SE1 PN AM DM DM SE CN501 CN601 CN604 CN701 CN901 CN901 CN902 CN902 CN903 CN3 CN3 Adhesive tape MUTE connector assembly First lot ...

Page 6: ... 71 23 34 37 40 41 74 WAVE 32M MASK 3 3D 1 37 38 47 48 SMA 0 20 SMD 0 15 OE CE 27 24 SOE SCSO 46 88 93 3 3D 1 25 26 37 38 12 14 27 37 46 47 88 90 95 101 131 132 106 118 121 123 75 76 79 87 89 96 99 102 105 124 C bus PROGRAM 16M P2ROM IC302 48P OE CRD CE PROGRAM 16M MASK IC301 48P OE CE 2M SRAM IC303 44P OE 39 40 11 13 37 47 CLB CUB CRD 41 17 6 28 11 26 CWE CS2 CS3 WE CE 4M Flash IC305 48P OE WE CE...

Page 7: ...40B The DM circuit board can then be removed Fig 3 4 SE SE SE1 Circuit Board Speaker 4 1 Remove the bottom assembly See procedure 1 4 2 SE SE SE1 Circuit Board Time required About 4 minutes 4 2 1 Remove the four 4 screws marked 110B Fig 3 4 2 2 Remove the solder from the two locations shown as A the speaker terminals and then remove the solder from the twelve locations shown as B the sensor wire T...

Page 8: ...ut 4 minutes 6 1 Remove the bottom assembly See procedure 1 6 2 Remove the three 3 screws marked N100 The earth plate can then be removed Fig 5 6 3 Remove the two 2 screws marked 120B The neck assembly can then be removed Fig 4 Come off the wire from the connector of the neck assembly side 6 4 Remove the two 2 screws marked N70 from the fingerboard The PN circuit board and the key top rubber can t...

Page 9: ... 8MHz Ground Not used Not used Memory mode select Grounded Rotary encoder data MIDI receive data LED and switch drive data Reset LED and switch drive data Switch matrix data 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 S12 S13 S14 TXD S15 S16 S17 S18 L16 L17 L18 L19 L8 L9 L10 L11 L12 L13 L14 L15 L7 L6 L5 L4 L3 L2 L1 L0 VREF AD0 AD1 S0 I I I O I I ...

Page 10: ...us 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 CMA3 CMA8 CMA2 CRD CMA1 CUB VCC91 GHND92 CS1 CMA0 CLB CMA12 CMA11 CMA10 CMA9...

Page 11: ...Output A Input A GND V Output B Input B Input B Input A A B 1 2 3 4 LOUT 8 7 6 5 Rch analog Output VDD Ground Lch analog output Power supply Shift clock Serial dat input L R clock Voltage reference ROUT REF GND CLK SI LRCK Switch Collector S R Q Generator Comparator 1 17V reference voltage 1 Switch Emitter 2 Capacitor 3 Ground 4 Driver 8 Peak current detect 7 Power supply 6 Input 5 Switches IN OUT...

Page 12: ...for details of circuit board component parts AM Circuit Board X3960B0 12 DM Circuit Board X4489B0 13 PN Circuit Board X3961B0 14 15 SE Circuit Board X3960B0 12 SE1 Circuit Board X3960B0 12 CONTENTS CIRCUIT BOARDS AM Circuit Board Component side to DM CN601 SE Circuit Board SE1 Circuit Board Component side Component side AM SE SE1 2NA WA83390 2 First lot Pattern side ...

Page 13: ...13 EZ AG to MUTE PLATE to AM CN801 to SE CN901 Speaker to PN CN3 not installed 2NA WA83340 DM Circuit Board Component side Pattern side 1 ...

Page 14: ...EZ AG 14 2NA WA83470 2 to DM CN701 A A A A B B B B STRING 1 STRING 2 STRING 3 STRING 4 STRING 5 STRING 6 Component side PN Circuit Board ...

Page 15: ...D D FRET 6 FRET 7 FRET 8 FRET 9 FRET 10 FRET 11 FRET 12 D D STRUM 1 START STOP CHORD 2 PLAY MODE START STOP BOTH 3 RESET VALUE VALUE START STOP DEMO START STOP SOUND SELECT SONG SELECT VOLUME TEMPO TUNING CAPO Pattern side 2NA WA83470 2 PN Circuit Board ...

Page 16: ...6 11 13 14 15 19 Displays the ROM version ROM Program Wave versions are displayed alternately on the LED Check the ROM IC302 Checks the ROM that is connected to the CPU bus simplicity check Check the RAM IC303 Checks the RAM that is connected to the CPU bus simplicity check Check the WAVE ROM IC201 Checks the WAVE ROM that is connected to the CPU bus simplicity check Check the FLASH ROM IC305 Chec...

Page 17: ...g String check 2 The case of plays the string weakly After it was to the decision When picking 1st through 6th strings simultaneously with the same strength at the level that the 4th fret lights up check that any extremely different frets are not lighted up Use LED of fret 1st 5th show the datum of scaling done with peak value Note that the if a string is not played for more than 0 8 seconds the p...

Page 18: ... battery terminal 6 Static check Select Sound No 5 and play all strings with the VOLUME set to maximum and all other switches at their default settings Check that there is no static 7 Check the levelness of the neck Place the instrument on a level surface and check for neck deformation Make sure there is no obvious next deformation 8 Check for foreign objects inside the main body With the power on...

Page 19: ...ontrol 10 o o Pan 11 x o Expression Change 64 x o Sustain 71 x o Harmonic Content 72 x o Release Time 73 x o Attack Time 74 x o Brightness 91 93 94 x x Effect Depth 96 97 x o RPN Inc Dec 100 101 x o 2 RPN LSB MSB 84 o o Portamento Cntrl Prog o 0 127 o 0 127 Change True System Exclusive o 3 o 3 Song Pos x x Common Song Sel x x Tune x x System Clock o o Real Time Commands o 4 o 4 Aux All Sound OFF x...

Page 20: ...r MIDI Master Tuning The default value of mm and ll are 08H and 00H respectively Any values can be used for cc EZ AG Native Parameter Change F0H 43H 7FH 00H 00H ll mm nn F7H The value which ll mm and nn is Fuction ID ctr 1 and ctr 2 respectively 4 5 6 When the song is started an FAH message is transmitted When song is stopped an FCH message is transmitted When the clock is set to External both FAH...

Page 21: ...s spare parts This mark in the REMARKS column means these parts are interchangeable The second letter of the shaded part number is O not zero The second letter of the shaded part number is I not one M South African model O Chinese model Q South east Asia model T Taiwan model U U S A model V General export model 110V W General export model 220V N X General export model Y Export model A Australian m...

Page 22: ...180 B180 B90 B10 B20 B50 B30 T10 T30 T40 T80 T80 T60 T50 T70 T20 T60 T50 T70 T30 T40 T90 50b Top Assembly Bottom Assembly Battery Cover Assembly 10 80 Strings Sence Unit 30 60 60 70 60 60 20 40 Neck Assembly 50 N100 N110 N90 N40 N30 N20 N60 N50 N10 N80 N70 180a 180 B40 B170 B160 B100 B120 B110 B110 B120 B190 B200 B150 ...

Page 23: ...B20 Spring Terminal A 01 B30 Spring Terminal B 01 B40 Spring Terminal C 3 01 B50 Spring Terminal D 2 01 B60 Cushion PE 645X15X1 0 WB44900 B70 Cushion PE 100X15X1 0 V679150 B80 Cushion PE 320X15X1 0 WB44920 B90 Cushion PE 60X15X1 0 V956150 B100 Circuit Board AM B110 Connector Assembly BAT PH 3P 80L 145L WA87560 B120 Bind Head Tapping Screw B 3 0X8 MFZN2Y 7 01 B150 Cord Holder BK 1 01 B160 Cushion P...

Page 24: ...EZ AG 4 100 120 120 120 120 130 160 160 130 120 110 110 110 10 20 30 20 40 40 90 90 60 70 50 50 30 It can not be disassembled STRINGS SENSOR UNIT ...

Page 25: ...acket 1 0 V852360 2 50 Bracket 1 2 V852740 2 60 String 1 0 GS WA96890 3 70 String 1 2 GS WA96900 3 90 Circuit Board SE SE SE1 100 Speaker 10 0cm 4ohm 3W 03 110 Bind Head Tapping Screw B 3 0X8 MFZN2Y 8 01 120 Cushion PE 25X15X1 0 WB44930 10 130 Cushion PE 150X7 5X1 0 WB44940 2 160 Cord Holder BK 1 2 01 180 Grease G 31KA 50g VE96850 10 WA968200 WA849500 X2519A00 EP600250 CB069250 TX920280 New Parts ...

Page 26: ... 03 JK802 Phone Jack JACK HTJ 064 04A 02 L0701 Coil FL5R200QNT 20uH 01 0704 Coil FL5R200QNT 20uH 01 L0801 Coil FL5R200QNT 20uH 01 L0802 Coil FL5R200QNT 20uH 01 L0803 Jumper Wire 0 55 VA07890 L0804 Coil SNT D20TF 10uH 03 R0701 Carbon Resistor 1 0K 1 4 J 01 R0702 Carbon Resistor 220 0 1 4 J 01 0704 Carbon Resistor 220 0 1 4 J 01 R0705 Carbon Resistor 10 0K 1 4 J 01 R0706 Carbon Resistor 22 0K 1 4 J ...

Page 27: ...5V Z 01 C0515 Electrolytic Cap chip 100 25V UUR1E1 01 C0521 Electrolytic Cap chip 220 10V UUR1A2 01 C0521 Electrolytic Cap chip 220 10V ECEV1AA221 C0522 Electrolytic Cap chip 220 10V UUR1A2 01 C0522 Electrolytic Cap chip 220 10V ECEV1AA221 C0525 Ceramic Capacitor B chip 820P 50V K 01 C0526 Electrolytic Cap chip 47 16V 01 C0527 Electrolytic Cap chip 220 10V UUR1A2 01 C0527 Electrolytic Cap chip 220...

Page 28: ...K 63M J 01 R0008 Carbon Resistor chip 560 0K 63M J 01 R0009 Carbon Resistor chip 560 0K 63M J 01 R0010 Carbon Resistor chip 5 6K 63M J 01 R0012 Carbon Resistor chip 0 63M J 01 R0013 Carbon Resistor chip 56 0K 63M J 01 0017 Carbon Resistor chip 56 0K 63M J 01 R0018 Carbon Resistor chip 560 0K 63M J 01 R0019 Carbon Resistor chip 560 0K 63M J 01 R0020 Carbon Resistor chip 5 6K 63M J 01 R0021 Carbon R...

Page 29: ...0 Carbon Resistor chip 47 0K 63M J 01 R0301 Carbon Resistor chip 4 7K 63M J 01 R0310 Carbon Resistor chip 0 63M J 01 R0311 Carbon Resistor chip 0 63M J 01 R0501 Carbon Resistor chip 2 2K 63M J 01 R0502 Carbon Resistor chip 22 0K 63M J 01 R0503 Carbon Resistor chip 10 0K 63M J 01 R0504 Carbon Resistor chip 2 2K 63M J 01 R0505 Carbon Resistor chip 2 2K 63M J 01 R0506 Carbon Resistor chip 22 0K 63M J...

Page 30: ...ip SML 311UTT86 4Fret 5String 01 LD024 LED Red chip SML 311UTT86 4Fret 6String 01 LD025 LED Red chip SML 311UTT86 5Fret 1String 01 LD026 LED Red chip SML 311UTT86 5Fret 2String 01 LD027 LED Red chip SML 311UTT86 5Fret 3String 01 LD028 LED Red chip SML 311UTT86 5Fret 4String 01 LD029 LED Red chip SML 311UTT86 5Fret 5String 01 LD030 LED Red chip SML 311UTT86 5Fret 6String 01 LD031 LED Red chip SML 3...

Page 31: ...EZ AG 11 New Parts REF NO PART NO DESCRIPTION REMARKS QTY RANK RANK Japan only Sensor 7BB 12 9A6 Piezo V905470 6 ...

Page 32: ...OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP to MUTE Plate to SE CN901 to PN CN3 not used SPEAKER 4 Ω DM TMUTE 0 5 STRINGS PIEZO SENSOR DAC OP AMP DC DC CONVERTER DC DC CONVERTER to AM CN801 VCC LINE OUT MIDI PN DATA I O FT 0 5 MUT 0 5 SMD 0 15 SOE SCSO SMA 0 20 REGULATOR 3 3V AND AND AND AND SWX00B MASK ROM 16M PROGRAM P2ROM PROGRAM IC301 or IC302 are installed CMA 1 21 CWE CMD 0 15 CMA 1 21 CWE 28C...

Page 33: ...6576 2 28CC1 8826576 2 28CC1 8826576 2 28CC1 8826577 Solder Mylar Capacitor Semiconductive Ceramic Capacitor S1 S6 See parts list for details of circuit board component parts Note TO SERVICE PERSONNEL Critical Components Information Components having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed STANDBY ON GROUND PATTER...

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