Yamaha_DG100-212 电路图.pdf

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1、SERVICE MANUAL GUITAR PRE-AMPLIFIER GA 011400 HAMAMATSU, JAPAN 2.1K-656 Printed in Japan 98.03 CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 CIRCUIT BOARD LAYOUT 5 BLOCK DIAGRAM 6 DISASSEMBLY PROCEDURE 7 LSI PIN DESCRIPTION 9 IC BLOCK DIAGRAM 12 CIRCUIT BOARDS 14 TEST PROGRAM 18 ERROR MESSAGES 21 MIDI IM

2、PLEMENTATION CHART 22 PARTS LIST OVERALL CIRCUIT DIAGRAM 19980301-198000 RadioFans.CN 收音机爱 好者资料库 DG100-212 2 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 al

3、so 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,

4、 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. LITHIUM BATTERY HANDLING This produc

5、t uses a lithium battery for memory back-up. WARNING:Lithium batteries are dangerous because they can be exploded by improper handling. Observe the following precautions when handling or replacing lithium batteries. Leave lithium battery replacement to qualified service personnel. Always replace wit

6、h batteries of the same type. When installing on the PC board by soldering, solder using the connection terminals provided on the battery cells. Never solder directly to the cells. Perform the soldering as quickly as possible. Never reverse the battery polarities when installing. Do not short the ba

7、tteries. Do not attempt to recharge these batteries. Do not disassemble the batteries. Never heat batteries or throw them into fire. ADVARSEL! Lithiumbatteri-Eksplosionsfare ved fejlagtig hndtering. Udskiftning m kun ske med batteri af samme fabrikat og type. Levr det brugte batteri tilbage til leve

8、randren. VARNING Explosionsfara vid felaktigt batteribyte. Anvnd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren. Kassera anvnt batteri enligt fabrikantens instruktion. VAROITUS Paristo voi rjht, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laiteval

9、mistajan suosittelemaan tyyppiin. Hvit kytetty paristo valmistajan ohjeiden mukaisesti. The following information complies with Dutch Official Gazette 1995. 45; ESSENTIALS OF ORDER ON THE COLLECTION OF BATTERIES. Please refer to the diassembly procedure for the removal of Back-up Battery. Leest u vo

10、or het verwijderen van de backup batterij deze beschrijving. 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 specifically Yamaha Products, are a

11、lready 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 the product to perform as specified. For t

12、hese 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, certification, rec

13、ognition 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 improv

14、e 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 discharges can destroy expensive component

15、s. Discharge any static electricity you body may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss.) IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING Co

16、mponents having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS DG100-212 3 Digital Section Complete Digital Signal Processing Internal 8 Channel Preset Digital Reverb (SPRING, HALL, P

17、LATE) Digital Tape Echo Speaker Simulator (LINE OUT) Analog Section 100W Solid State Power Amp 30 cm Speaker (Celestion Vintage 30) X 2 MIDI Function Receive : Program change, Control Change (No. 7, 91, 94), Bulk In Transmit : Bulk Out, Merge Out Controller/Switch Front Panel : TRIM, OUTPUT, GAIN, M

18、ASTER, TREBLE, HIGH MID, LOW MID, BASS (TIME), PRESENCE (FEED BACK), REVERB (LEVEL) Rear Panel : LINE OUT volume, EFFECT BLEND Switch : AMP SELECT (LEAD1, LEAD2, DRIVE1, DRIVE2, CRUNCH1, CRUNCH2, CLEAN1, CLEAN2), REVERB, MODE, STORE, RECALL Display AMP SELECT display LED X 8 MODE display LED X 3 REV

19、ERB type display X 3 7 segment LED X 2 digits Indicator Trim Level Display LED (Green) Trim Clip Display LED (Red) Connection Jacks INPUT HIGH/LOW, SPEAKER, EFFECT SEND/RETURN: Standard Phone Mono Jack LINE OUT: Cannon Jack MIDI IN, MIDI OUT: 5 pin DIN A/D Converter20 bit D/A Converter20 bit Samplin

20、g Frequency48 kHz Memory Number128 Input Level/Impedance INPUT HIGH: 30dBm (THRU)/1M INPUT LOW: 20dBm (THRU)/1M EFFECT RETURN: 0dBm/120k Output Level/Impedance SPEAKER: 100W RMS/4 LINE OUT: +4dBm/600 EFFECT SEND: 0dBm/120k Power Requirements U.S. and Canadian models : 120V, 60Hz General model : 230V

21、, 50Hz Power Consumption100W Dimensions (w/Caster)712 (W) X 574 (H) X 284 (D) mm 28” (W) X 22.6” (H) X 11.2” (D) Weight33.5 kg (73 lbs 13 oz) RadioFans.CN 收音机爱 好者资料库 DG100-212 4 Input Jack (INPUT HIGH, LOW) Trim Control (TRIM) Output Level Control (OUTPUT) Gain Volume (GAIN) Master Volume (MASTER) T

22、one Controls (TREBLE, HIGH MID, LOW MID, BASS, PRESENCE) Reverb Volume (REVERB) Amp Select Button/Amp Select Display (LEAD 1, 2/DRIVE 1, 2/CRUNCH 1, 2/CLEAN 1, 2) Reverb Type Select Button (REVERB) Reverb Type Display Lamp (SPRING, HALL, PLATE) Mode Select Button (MODE) Mode Display Lamp (AMP/TAPE E

23、CHO/UTIL.) Display / Buttons Store Button (STORE) Recall Button (RECALL) Power Switch (POWER) Speaker Jack (SPEAKER) MIDI OUT Jack MIDI IN Jack Effect Blend Control (EFFECT BLEND) Effect Return Jack (EFFECT RETURN) Effect Send Jack (EFFECT SEND) Line Out Jack (LINE OUT) Line Out Level Control (LINE

24、OUT LEVEL) Speaker Plug PANEL LAYOUT Front panel Rear panel CIRCUIT BOARD LAYOUT DG100-212 5 WARNING IMPORTANT Power Transformer ANRDM VR PN RR ANF2ANF CN701 CN503 CN101 CN102 CN401CN403 CN402 CN404 CN504 CN502 CN501 CN602 CN9CN4 CN5 CN6 CN7 CN8 CN603 CN304 CN309 CN308 CN305 CN201CN202 CN306 CN318 C

25、N303 CN301 CN302 K301 K302 K304 K303 CN307 CN313 CN314 CN317 CN312 CN315 CN310 CN604CN601VR DM ANR SPG CN316 SPH PN MAIN 5/5MAIN 4/5MAIN 3/5MAIN 2/5 AC cord Power switch MAIN 1/5 MAIN 1/5 DG100-212 6 1.Pre-Main Unit 1-1 Remove the four (4) screws marked 70A. The back board (U) can then be removed. (

26、Fig. 1) 1-2 Remove the plug of the connector assembly (speaker) located on the rear panel and the six (6) screws marked 30A. The pre-main unit can then be removed by sliding it backward.(Fig. 1, Fig. 2) 2.Speakers 2-1 Remove the four (4) screws marked 70A. The back board (U) can then be removed. (Fi

27、g. 1) 2-2 Remove the four (4) screws marked 70B. The back board (L) can then be removed. (Fig. 1) 2-3 Remove the plug of the connector assembly (speaker) located on the rear panel and the eight (8) hexagonal nuts with flanges marked 60A. The right and left speakers can then be removed. (Fig. 1) 60:

28、Hexagonal Nut 5.0 x 35 MFC2BL (EX000990) 30A: Oval Head Screw 5.0 x 35 MFC2BL (VP104600) 70: Oval Head Tapping Screw 4.0 x 30 MFC2BL (EN240090) (Fig. 1)(Fig. 2) Speakers Pre-main unit Pre-main unit Back board (Upper) 60A 30A 70B 70A 60A x 4 70B 70A Connector assembly (speaker) BLOCK DIAGRAMDISASSEMB

29、LY PROCEDURE INPUT 1 JK501 INPUT 2 JK701 TRIM VR IC501 RED GREEN INPUT LEVEL IND IC701 ANF2 ANF DM IC104 IC105 IC118 IC119 IC3 IC8,11 IC2 IC123 IC125 I/V IC122 IC124 IC34 IC13 IC21,27IC36 I/V D/A D/A DRA F-ROM IC12,14 S-RAM DSP CPU DFF DFF BUFF A/D DF PN VR G A I N M A S T H M I D L M I D B A S S T

30、R E P R E P R V MOTOR DRIVE PSPW ANF ANR AC IN POWER SW TRANS MUTING POWER SUPPLY HB 15V 5V OUTPUT VR POWER AMP SP JACK LOAD: 48 RETURN SEND JK403 IC402 IC401 JK402 JK401 EFECT LEVEL LINE OUT LEVEL LINE OUT DG100-212 7 3.Front Panel Assembly 3-1 Remove the pre-main unit. (See Procedure 1) 3-2 Remove

31、 the five (5) screws marked 30B. The front panel assembly can then be removed. (Fig. 3) 4.ANR Circuit Board 4-1 Remove the pre-main unit. (See Procedure 1) 4-2 Remove the screw marked 50, the two (2) screws marked 170, the two (2) knobs marked 60 and the four (4) hexagonal nuts marked A. The ANR cir

32、cuit board assembly can then be removed. (Fig. 3) 4-3 Remove the two (2) screws marked 40d. The ANR circuit board can then be removed from the ANR circuit board assembly. (Fig. 3) 5.DM Circuit Board 5-1 Remove the pre-main unit. (See Procedure 1) 5-2 Remove the ANR circuit board. (See Procedure 4) 5

33、-3 Remove the two (2) screws marked 40 and the six (6) screws marked 30C. The DM circuit board can then be removed. (Fig. 3) 6.Main (1/5-2/5) Circuit Board 6-1 Remove the pre-main unit. (See Procedure 1) 6-2 Each circuit board can then be removed in its manner as below. Main 1/5 Circuit Board Remove

34、 the six (6) screws marked 60B. The main 1/5 circuit board can then removed. (Fig. 3) Main 2/5 Circuit Board Remove the screw marked 150A. The main 2/5 circuit board can then removed. (Fig. 3) Main 3/5 Circuit Board Remove the screw marked 150B. The main 3/5 circuit board can then removed. (Fig. 3)

35、Main 4/5 Circuit Board Remove the screw marked 150C. The main 4/5 circuit board can then removed. (Fig. 3) Main 5/5 Circuit Board Remove the screw marked 150D. The main 5/5 circuit board can then removed. (Fig. 3) 7.Power Transformer 7-1 Remove the pre-main unit. (See Procedure 1) 7-2 Remove the fou

36、r (4) screws marked 80A. The Transformer can then be removed. (Fig. 3) RR DM ANR MAIN 5/5MAIN 4/5MAIN 3/5MAIN 2/5 Power transformer MAIN 1/5 (Fig. 3) 40d Front panel assembly Sub angle A 40605017060 A 30C x 6 60B x 6 80A 30B x 5 150D150C 150B 150A 80A: Bind Head Screw A4.0 x 8 MFZN2BL (VP156800) 150

37、: Pan Head Screw SP3.0 x 12 MFZN2Y (EL200070) 170: Bind Head Tapping Screw-B 3.0 x 8 MFZN2BL (EP600190) 40d: Pan Head Screw SP3.0 x 8 MFZN2Y (EK400500) 50: Bind Head Screw A3.0 x 8 MFZN2BL (VP156700) 60B: Bind Head Tapping Screw-B 3.0 x 6 MFZN2BL (EP600230) 30B: Bind Head Tapping Screw-A4.0 x 8 MFZN

38、2BL (VP156800) 30C: Bind Head Tapping Screw-B 3.0 x 6 MFZN2BL (EP600230) 40: Bind Head Tapping Screw-B 3.0 x 8 MFZN2BL (EP600190) DG100-212 8 11. VR Circuit Board 11-1 Remove the pre-main unit. (See Procedure 1) 11-2 Remove the front panel assembly. (See Procedure 3) 11-3 Remove the eight (8) knobs

39、marked 90 and the four (4) screws marked 30D. The VR circuit board assembly can then be removed. (Fig. 4) 11-4 Remove the eight (8) hexagonal nuts marked C. The VR circuit board can then be removed from the VR circuit board assembly. (Fig. 5) 12.Replacement Of The Lithium Battery 12-1 Remove the pre

40、-main unit. (See Procedure 1) 12-2 The lithium battery marked D, on the DM circuit board, can be replaced. (Fig. 6) Angle, motor volume C D (Fig. 5)(Fig. 6) VR DM 140b: Bind Head Tapping Screw-B 3.0 x 6 MFZN2BL (EP600230) D: Lithium Battery CR2032 Battery VS246400 VS246300(Battery holder for VS24640

41、0) Notice for back-up battery removal Push against the holder hook, then the battery will pop up. Druk tegen de houder, de batterij springt dan naar voren. Battery Battery holder 8.PN Circuit Board 8-1 Remove the pre-main unit. (See Procedure 1) 8-2 Remove the front panel assembly. (See Procedure 3)

42、 8-3 Remove the ten (10) screws marked 80B. The PN circuit board assembly can then be removed. (Fig. 4) 8-4 Remove the seven (7) top cap assemblies from the PN circuit board assembly. (Fig. 4) 9.ANF Circuit Board 9-1 Remove the pre-main unit. (See Procedure 1) 9-2 Remove the front panel assembly. (S

43、ee Procedure 3) 9-3 Remove the two (2) screws marked 100, the two (2) hexagonal nuts marked B and the hexagonal nut marked 110A. The ANF circuit board can then be removed. (Fig 4) 10.ANF2 Circuit Board 10-1 Remove the pre-main unit. (See Procedure 1) 10-2 Remove the hexagonal nut marked 110B. The AN

44、F2 circuit board can then be removed. (Fig. 4) 30B: Bind Head Tapping Screw-B 3.0 x 6 MFZN2BL (EP600230) 80B: Bind Head Tapping Screw-B 3.0 x 6 MFZN2BL (EP600230) 110: Hexagonal Nut 9.0 x 12 x 2 MFNI33 (LX200060) (Fig. 4) 110B 110A90 80B Top cap assemblies VR circuit board assembly Front panel assem

45、bly 100,B ANF2 ANF 80B30D PN DG100-212 9 LSI PIN DESCRIPTION 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 I/O O O I I I I I I I I O O O I I 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

46、I/O I/O I/O O O O O O O O O O O O O PA6 PA7 VCC PB0 PB1 PB2 PB3 PB4 PB5 PB6/DREQ0 PB7/DREQ1 /RESO VSS P90/TXD0 P91/TXD1 P92/RXD0 P93/RXD1 P94/SCK0 P95/SCK1 P40/D0 P41/D1 P42/D2 P43/D3 VSS P44/D4 P45/D5 P46/D6 P47/D7 D8 D9 D10 D11 D12 D13 D14 D15 VCC A0 A1 A2 A3 A4 A5 A6 A7 VSS A8 A9 A10 A11 NAME Por

47、t A Address bus Power supply Port B Reset Ground Transmit data (MIDI OUT) KSN-ACK Receive data (MIDI IN) KSN-RX Port 9 Port 9 (Ground) Data bus Power supply Address bus (Ground) FUNCTION PIN NO. 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 76 77 78 79 80 81 82 83 84 85

48、86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 I/O O O O O O O O O I I I O I I I I O O O O O I I I I I I I I I I I I O O O O O I I I O O O A12 A13 A14 A15 A16 A17 A18 A19 VSS P60/WAIT P61/BREQ P62/BACK /STBY /RES NMI VSS EXTAL XTAL VCC /AS /RD /HWR /LWR MD0 MD1 MD2 AVCC VREF P70/AN0 P71/AN1 P72/AN2 P

49、73/AN3 P74/AN4 P75/AN5 P76/AN6 P77/AN7 AVSS P80 P81/CS3 P82/CS2 P83/CS1 P84/CS0 VSS PA0 PA1 PA2 PA3 PA4 PA5 NAME Address bus Ground Port 6 out Stand-by mode signal Reset Non-maskable interrupt Ground Clock Clock Power supply Address strobe Read strobe Write strobe (High) Write strobe (Low) Mode select Analog power supply Reference voltage Analog data input (EQ) Analog input (EQ) Analog data input Analog input (CS) Analog data input (BEND) Analog input (MOD) Analog input (FC) Analog input (BAT) Analog ground Port 8 Chip sele