Yamaha_EZ-EG_Guitar_Service_Manual 电路图.pdf

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1、 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 INSPECTIONS 18 MIDI IMPLEMENTATION CHART 19 PARTS LIST OVERALL CIRCUIT DIAGRAM HAMAMATSU, JAPAN Copyright (c) Yamaha Co

2、rporation. All rights reserved. PDF-K724 03.02 PK011675 SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 EZ-EG 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, an

3、d more specifically Yamaha Products, are already known and understood 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 personal injury, destruction of expensive components and failure of

4、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 co

5、nstitute authorization, certification, 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

6、 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 distributors Service Division. WARNING:Static

7、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 befor

8、e 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 Agen

9、cy (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 inha

10、le 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

11、equal to those originally installed. RadioFans.CN 收音机爱 好者资料库 EZ-EG 3 SPECIFICATIONS Strings Frets Displays Voices Play Modes Controls Songs Tremolo Arm Range Tempo Range Balance Range Capo Range Tuning Connectors Maximum Output Power PHONES/OUTPUT Speaker Power Supply Power Consumption Dimensions (w

12、 x d x h) Weight Supplied Accessories 6 12 Numeric LED display, 6 x 12 fret LEDs 9 guitar, 8 bass, 3 others STRUM (right hand), CHORD (left hand), BOTH (both hands) STANDBY/ON switch, VOLUME control, tremolo arm, STRUM button, CHORD button, BOTH button, DEMO button, SOUND button, SONG button, TEMPO

13、button, BALANCE button, CAPO button, TUNING button, VALUE +/- buttons 18 (additional songs can be loaded into internal memory from a computer) -300 +300 cents 32 280 0 127 0 10 28 tuning settings in addition to normal DC IN 9V, PHONES/OUTPUT (mini stereo jack), MIDI IN and MIDI OUT 0.7 W (batteries

14、or AC adaptor) Output impedance: 50 ohms 5 cm PA-D09 AC Power Adaptor (supplied) Six 1.5V “AA” size, R6P or equivalent batteries 6.5 W (using the PA-D09 AC Power Adaptor) 809 x 300 x 72 mm (32 x 11-3/4 x 3) 1.6 kg (3 lbs. 8oz.) (w/o batteries) Tremolo Arm, Strap, C-Clip x 2, Pick, AC Power Adaptor,

15、EZ-EG Song Chord Chart, USB-MIDI Interface (UX16), CD-ROM RadioFans.CN 收音机爱 好者资料库 EZ-EG 4 1 2 4 5 6 716 1718 19 8 9 10 1112131415 3 1Frets 2Control Section 3Strings 7VALUE +/- buttons 8Display 9BALANCE button 10 TUNING button 11 TEMPO button 12 CAPO button 13 SONG button 14 SOUND button 15 DEMO butt

16、on 16 PLAY MODE 1/STRUM, 2/CHORD, 3/BOTH buttons 4Tremolo Arm 5VOLUME Control knob 6STANDBY/ON Control switch 17 MIDI IN/MIDI OUT connectors 18 PHONES/OUTPUT jack 19 DC IN 9V jack PANEL LAYOUT Body Control Section Connectors EZ-EG 5 CIRCUIT BOARD LAYOUT Neck assembly Lower case assembly Strings sens

17、or unit Body assembly AM-1 AM-3AM-2 MUTE 1/2 DM PN CN3 CN1 CN901 CN902 CN801 CN701 CN604 CN501 CN601 CN602 Vibrato arm unit EZ-EG 6 BLOCK DIAGRAM AM-2 AM-3 AM-1 AM-2 MUTE 1/2 DM PN TREMOLO UNIT SENSOR UNIT PIEZO SENSOR MIDI I/F SUB CPU CLOCK 8.00 MHz TREMOLO CN902 VR901 3P CN6023PCN6019PCN6019PCN604

18、 IC607 6P CN9019P CN16P CN901 15 368,9 9P CN7015P CN35P STRING SPEAKER IC1 LED Driver SW MATRIX X84 LED MATRIX X82 7 Seg LED MIDI OUT MIDI IN DC IN 9V PHONES/ OUTPUT JK702 JK701 JK802 BATTERY SUM3 X6 CN802 3P JK801 IC701, TR701,702 POWER AMP. IC802 H.P AMP. IC801 LPF & AMP MUTE AMP 6ch IC601606 SENS

19、OR AMP 6ch IC701 ANALOG SW IC502 DAC 16Bit SWX00B +3.3V REG. IC501 TR801 SW801 MASTER VOLUME VR801 +9V +9V - + CN801CN501 11P11P L R 1 7 4 8 1 2,3 5,6 DO0, WCLK,QCLK 5,6,7 158,163,164 4,7,49,77, 91,148 133,143,161 +3.3D +3.3D +5D -5D IC102 RESET 3.6V WAVE 32M MASK IC703 CLOCK 8.467MHz X102 +5V DC/DC

20、 CNV. IC503 -5V DC/DC CNV. IC504 MIDI-Rx MIDI-Tx TX RX 21 IC101 154 20 153 P-BusAN3AN0,AN1, AN2 C-bus S-bus 47,48,5159,6271 41 74 2334,3740 TXD1 RXD1 TXD0 RXD0 145147, 150152 +5D -5D 14,15,16 4,14,15 17 +5D 54IC 9,10 1 +3.3D SMA020 SMD015 SOE OE CE SCSO 24 IC201 PROGRAM 16M MASK IC301 +3.3D 27 75,76

21、,7987,89, 9699,102105,124 123121, 118106 88,90,95,101, 131,132 CMA121 CMD015 CMA118 CMD015 46,88,93 CRD27 24 28 26 CS0,CS1 CS0 OE CE PROGRAM 32M Flash IC302 OE CE 4M Flash IC305 OE WE CE 2M SRAM IC303 OE WE CE CLB,CUB CRD CWE CS2 41 17 28 11 266 CS3 28CA1-8822923 +3.3D+5D +5D +5D BEND 1,37,38, 47,48

22、 1,25,26, 37,38 IC301 or IC302 are mounted.: solder 11,1337,47 2 3 2 3 1211 5 4 9 8 77 10,1110,11 9 8 5 4 1 +5D +5D+5D +5D 8,9 8,9 17 S1S6 K1K6 25 MUT05 FT05 13,5, 12,13 16 8 +5D 14 +5D 8 +9V 2 +9V 2 1,3 7 TXD RXD 6,7 +5D +5D 9,10 X1 TA13 S011 D07 L015 S011 D07 L015 LD90 D17 L1214 SPEAKER 71,3 7 L R

23、 6 ON/STANDBY Wire D801 4 8 (BTL) EZ-EG 7 220 220 220 220 220 220 220 220 220 220 220 220 DM (Fig. 4) 220: Bind Head Tapping Screw-P 3.0X8 MFZN2BL (EP630220) 150 Lower case assemblyLower case assemblyLower case assembly POWER knob VOLUME knob POWER knob VOLUME knob POWER knob VOLUME knob (Fig. 1) (F

24、ig. 2) 150 150 150 150: Pan Head Tapping Screw-1 3.5X12 MFZN2BL (V9401100) Lower Case Assembly AM-1 L120L120L120 L120L120L120 L120L120L120 (Fig. 3) L120: Bind Head Tapping Screw-P 3.0X8 MFZN2BL (EP630220) * The knobs differs from the product. 1.Lower Case Assembly (Time required: about 5 minutes) 1-

25、1Pull out the POWER knob and the VOLUME knob. (Fig. 1) 1-2Remove the seven (7) screws marked 150. The lower case assembly can then be removed. (Fig. 2) 2.AM-1 Circuit Board (Time required: about 5 minutes) 2-1Remove the lower case assembly. (See procedure 1.) 2-2Remove the six (6) screws marked L120

26、. The AM-1 cir- cuit board can then be removed. (Fig. 3) DISASSEMBLY PROCEDURE 3.DM Circuit Board (Time required: about 10 minutes) 3-1Remove the lower case assembly. (See procedure 1.) 3-2Remove the four (4) screws marked 220. The DM circuit board can then be removed. (Fig. 4) 4.Sensor Holder A, Se

27、nsor Holder B, Speaker, AM-2 Circuit Board (Time required: about 25 minutes) 4-1Remove the lower case assembly. (See procedure 1.) 4-2Remove the DM circuit board. (See procedure 3.) 4-3Remove the four (4) screws marked 210. The two (2) stop- per can then be removed. (Fig. 5) 4-4Remove the four (4) s

28、crews marked 80. The sensor holder A and the sensor holder B can then be removed. (Fig. 5) 4-5Remove the four (4) screws marked 100. (Fig. 5) 4-6Pull out the speaker by lifting the AM-2 circuit board about a little. (Fig. 5) 4-7Remove the solder from the two locations shown as A (the speaker termina

29、ls). The speaker can then be removed. (Fig. 5) 4-8Remove the solder from the two locations shown as B (the speaker wire) and then remove the solder from the twelve locations shown as C (the sensor wire). The AM-2 circuit board can then be removed. (Fig. 5) (Fig. 5) 80: Bind Head Tapping Screw-P 3.0X

30、8 MFZN2BL (EP630220) 100: Bind Head Tapping Screw-P 3.0X8 MFZN2BL (EP630220) 210: Bind Head Tapping Screw-P 2.0X6 MFZN2BL (VG893800) Sensor holder A Stopper Stopper Sensor holder B 100100 100100 80 80 210210 210210 B (Speaker wire) C (Sensor wire) AM-2 Speaker A (Speaker terminals) AM-2 EZ-EG 8 (Fig

31、. 7) A50: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) Vibrato Arm Unit (Fig. 8) A50A50A50 A50A50A50 Base BBase BBase B AAA AM-3 (Fig. 6) 60: Bind Head Tapping Screw-P 3.0X30 MFZN2BL (V8529300) 110: Bind Head Tapping Screw-P 3.0X8 MFZN2BL (EP630220) 130: Bind Head Tapping Screw-P 3.0X8 MFZN2BL

32、 (EP630220) Vibrato arm unitStrings sensor unit 130 60 60 60 60 130 130110 110110 Upper case Base ABase ABase A Arm holderArm holderArm holder 5.AM-3 Circuit Board (Time required: about 15 minutes) 5-1Remove the lower case assembly. (See procedure 1.) 5-2Remove the DM circuit board. (See procedure 3

33、.) 5-3Remove the four (4) screws marked 130. The vibrato arm unit can then be removed. (Fig. 6) 5-4Remove the two (2) screws marked A50. The base A can then be removed from the vibrato arm unit. (Fig. 7) 5-5Pull out the base B with AM-3 circuit board from the arm holder in the direction shown by the

34、 arrow. (Fig. 8) 5-6Remove the hexagonal nut marked A. The AM-3 circuit board can then be removed. (Fig. 8) 6.Strings Sensor Unit, Upper Case (Time required: about 15 minutes) 6-1Remove the lower case assembly. (See procedure 1.) 6-2Remove the DM circuit board. (See procedure 3.) 6-3Remove the four

35、(4) screws marked 110. The strings sen- sor unit can then be removed. (Fig. 6) 6-4Remove the vibrato arm unit. (See procedure 5-3.) 6-5Remove the four (4) screws marked 60. The upper case can then be removed. (Fig. 6) 7.MUTE 1/2 Circuit Board, MUTE 2/2 Circuit Board, GS String (Time required: about

36、20 minutes) 7-1Remove the lower case assembly. (See procedure 1.) 7-2Remove the DM circuit board. (See procedure 3.) 7-3Remove the strings sensor unit. (See procedure 6.) 7-4Remove the three (3) screws marked 180A. The MUTE 1/2 circuit board can then be removed. (Fig. 9) 7-5Remove the three (3) scre

37、ws marked 180B. The MUTE 2/2 circuit board can then be removed. (Fig. 9) 7-6Remove the GS string with the bracket (Three each of the 1.0 and 1.2). The GS string can then be removed from the bracket. (Fig. 9) *The brackets are comprised of the bracket 1.0 and the bracket 1.2. The GS strings are compr

38、ised of the GS string 1.0 and the GS string 1.2. Take steps to prevent errors when disassembling and assembling. (Fig. 9) Strings Sensor Unit 180: Bind Head Tapping Screw-P 2.0X6 MFZN2BL (VG893800) Bracket 1.0 GS string 1.0 MUTE 1/2 GS string 1.0 GS string 1.2 180A180B MUTE 2/2 The GS string 1.0 pas

39、ses through the bracket 1.0. (The same applies to the bracket 1.2 and the GS string 1.2.) EZ-EG 9 8080 N100N100 80 N100Body assemblyBody assemblyBody assembly N70N70 N70N70 N70 N70 PN (Fig. 10)(Fig. 11) N70: Bind Head Tapping Screw-P 3.0X6 MFZN2BL (EP630220) 80: Bind Head Tapping Screw-P 4.0X35 MFZN

40、2BL (V8525500) N100: Flat Head Tapping Screw-P 3.0X16 MFZN2BL (VE009200) Earth plateEarth plateEarth plate Neck assembly (Neck)Neck assembly (Neck)Neck assembly (Neck) Key top rubberKey top rubberKey top rubber FingerboardFingerboardFingerboard 8.PN Circuit Board, Key Top Rubber (Time required: abou

41、t 8 minutes) 8-1Remove the lower case assembly. (See procedure 1.) 8-2Remove the three (3) screws marked N100. The earth plate can then be removed. (Fig. 10) 8-3Remove the four (4) screws marked 80. The fingerboard can then be removed. (Fig. 10, 11) *The neck is attached to the body. It cannot be re

42、moved. 8-4Remove the two (2) screws marked N70 from the finger- board. The PN circuit board and key top rubber can then be removed. (Fig. 11) PIN NO. I/OFUNCTIONNAME PIN NO. I/OFUNCTIONNAME 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 S1 S2 S3 S4 S5 VREF+ VD

43、D OSC2 OSC1 VSS XI XO MMOD RD0 RXD D0 D1 D2 D3 D4 /RST D5 D6 D7 D8 D9 S6 S7 S8 S9 S10 S11 I I I I I - - O I - I O I O I O O O O O I O O O O O I I I I I I Switch matrix data Power supply (+5V, analog) Power supply (+5V) Crystal oscillator (8MHz) Crystal oscillator (8MHz) Ground Not used Not used Memo

44、ry 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 L

45、12 L13 L14 L15 L7 L6 L5 L4 L3 L2 L1 L0 VREF AD0 AD1 S0 I I I O I I I I O O O O O O O O O O O O O O O O O O O O - I I I Switch matrix data MIDI transmit data Switch matrix data LED drive data LED and switch drive data Grounded Analog input Analog input Switch matrix data MN101C027YB (XS711200) CPUPN:

46、 IC001 LSI PIN DESCRIPTION EZ-EG 10 PIN NO. I/OFUNCTIONNAME PIN NO. I/OFUNCTIONNAME 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 70 71 72 73 74 75

47、76 77 78 79 80 81 82 83 84 ICN RFCLKI TM2 AVDD_PLL AVSS_PLL MODE0 VCC7 GND8 XIN XOUT MODE1 TEST0 TESTON AN0-P40 AN1-P41 AN2-P42 AN3-P43 AVDD_AN AVSS_AN TXD0 TXD1 EXCLK SMD11 SMD4 SMD3 SMD12 SMD10 SMD5 SMD2 SMD13 SMD9 SMD6 SMD1 SMD14 VCC35 GND36 SMD8 SMD7 SMD0 SMD15 SOE SWE SRAS SCAS REFRESH CS0 SMA0

48、 SMA16 VCC49 GND50 SMA1 SMA15 SMA2 SMA14 SMA3 SMA13 SMA4 SMA12 SMA5 GND60 VCC61 SMA11 SMA6 SMA10 SMA7 SMA9 SMA17 SMA8 SMA18 SMA19 SMA20 SMA21 SMA22 SMA23 CMA20 CMA19 VCC77 GND78 CMA18 CMA17 CMA5 CMA6 CMA4 CMA7 I I I I I O I I I I I I I O O I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/

49、O I/O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O Initial clear PLL Clock PLL Control Power supply Ground SWX dual mode Power supply Ground crystal oscillator crystal oscillator SWX separate mode TEST pin TEST pin A/D converter A/D converter A/D converter A/D converter Power supply Ground for MIDI or TO-HOST for MIDI Crystal oscillator Wave memory data bus Wave memory data bus Wave memory data bus Wave memory data bus Wave memory data bus Wave memory data bus Wave memory data bus Wave memory data bus Wave memory