Yamaha DG80-112 Service Manual 电路图.pdf

《Yamaha DG80-112 Service Manual 电路图.pdf》由会员分享，可在线阅读，更多相关《Yamaha DG80-112 Service Manual 电路图.pdf（44页珍藏版）》请在收音机爱好者资料库上搜索。

1、GA 011459 19990301-148000 SERVICE MANUAL HAMAMATSU, JAPAN 2.02K-186 Printed in Japan 99.02 GUITAR AMPLIFIER CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 CIRCUIT BOARD LAYOUT 5 BLOCK DIAGRAM 6 DISASSEMBLY PROCEDURE 6 LSI PIN DESCRIPTION 9 IC BLOCK DIAGRAM 12 CIRCUIT BOARDS 14 TEST PROGRAM 18 ERROR MESSAG

2、ES 21 MIDI IMPLEMENTATION CHART 22 PARTS LIST RadioFans.CN 收音机爱 好者资料库 DG80-112 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 also contain traces of chemica

3、ls 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

4、 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 product uses a lithium battery for

5、 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 with batteries of the same type

6、. 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 batteries. Do not attempt to r

7、echarge 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 leverandren. VARNING Explosionsf

8、ara 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 laitevalmistajan suosittelemaan tyyp

9、piin. 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 voor het verwijderen van de ba

10、ckup 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 already known and understood

11、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 these reasons, we advise all

12、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, recognition of any applicable t

13、echnical 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. Modificat

14、ions 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 components. Discharge any static elec

15、tricity your 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 Components having special cha

16、racteristics 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 DG80-112 3 Digital Section Complete Digital Signal Processing Internal 8 Channel Preset Digital Reverb (SPRING, HALL, PLATE) Digital Tape Echo Spea

17、ker Simulator (LINE OUT) Analog Section 80 W (8 ) Solid State Power Amp 30 cm Speaker (Celestion G12H100) x 1 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, MASTER, TREBLE, HIGH MID, L

18、OW 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 REVERB type display x 3 7 se

19、gment LED x 2 digits Indicator Trim Level Display LED (Green) Trim Clip Display LED (Red) Connection Jacks INPUT HIGH/LOW: Standard Phone Mono Jack SPEAKER x2: Standard Phone Mono Jack EFFECT SEND/RETURN: Standard Phone Mono Jack LINE OUT: Cannon Jack MIDI IN, MIDI OUT: 5 pin DIN A/D Converter20 bit

20、 D/A Converter20 bit Sampling Frequency48 kHz Memory Number128 Input Level/Impedance INPUT HIGH: -30 dBm (THRU)/1 M INPUT LOW: -20 dBm (THRU)/1 M EFFECT RETURN: 0 dBm/120 k Output Level/Impedance SPEAKER: 80 W RMS/8 , 100 W RMS/4 LINE OUT: +4 dBm/600 EFFECT SEND: 0 dBm/2.2 k Power Requirements U.S.

21、and Canadian models : 120 V, 60 Hz General model : 230 V, 50 Hz Power Consumption100 W Dimensions (W x H x D)542 x 510 x 284 mm (21.3” x 20.1” x 11.2”) Weight25.0 kg (55 lbs 2 oz) RadioFans.CN 收音机爱 好者资料库 Input Jacks (INPUT HIGH, LOW) Trim Control (TRIM) Output Level Control (OUTPUT) Gain Volume (GAI

22、N) Master Volume (MASTER) Tone 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) Mo

23、de Display Lamp (AMP/TAPE ECHO/UTIL.) Display / Buttons Store Button (STORE) Recall Button (RECALL) Power Switch (POWER) Speaker Jacks (SPEAKER1, 2 (EXT) ) MIDI OUT Jack MIDI IN Jack Effect Blend Control (EFFECT BLEND) Effect Return Jack (EFFECT RETURN) Effect Send Jack (EFFECT SEND) Line Out Jack (

24、LINE OUT) Line Out Level Control (LINE OUT LEVEL) Speaker Plug DG80-112 4 PANEL LAYOUT Front Panel Rear Panel DM ANR ANF2 1/5MAIN AC cord Power Transformer Power Switch ANR ANR ANF 5/5MAIN4/5MAIN3/5MAIN2/5MAIN1/5MAIN 1/5MAIN DM DM VR VR PN PN DG80-112 5 CIRCUIT BOARD LAYOUT BLOCK DIAGRAMDISASSEMBLY

25、PROCEDURE DG80-112 6 INPUT LOW JK501 INPUT HIGH JK701 TRIM VR IC501 RED GREEN INPUT LEVEL INDICATOR IC701 ANF2 ANF DM IC104 IC105 IC118 IC119 IC3 IC8,11 IC2 IC123 IC125 I/V IC122 IC124 IC403 IC34 IC13 IC21,27IC36 I/V D/A D/A DRAM F-ROM IC12,14 75 1 2 75 5721 6157 57 31 16 5721 31 2 1 27 S-RAM DSP CP

26、U 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 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: (EXT) 48 RETURN SEND JK403 IC402 IC401 JK402 JK401 EFECT LEVEL LINE OUT LEVEL LINE OUT KEC-541601

27、 60: Hexagonal Nut 5.0 MFC2BL (20040400) 30A: Oval Head Screw 5.0X35 MFC2BL (VP104600) 70: Oval Head Tapping Screw-1 4.0X30 MFC2BL (EN240090) (Fig. 1)(Fig. 2) 70 60AX4 Connector assembly (speaker) Speaker Back board(U) Pre-main unit Pre-main unit 70 30A 1.Pre-Main Unit 1-1Remove the four (4) screws

28、marked 70. The back board (U) can then be removed. (Fig. 1) 1-2Remove 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.Speaker 2-1Remove the pre-main unit. (See P

29、rocedure 1.) 2-2Remove the four (4) hexagonal nuts with flanges marked 60A. The speaker can then be removed. (Fig. 1) 3.Front Panel Assembly 3-1Remove the pre-main unit. (See Procedure 1.) 3-2Remove the five (5) screws marked 30B. The front panel assembly can then be removed. (Fig. 3) 30B: Bind Head

30、 Screw A4.0X8 MFZN2BL (VP156800) 30C: Bind Head Screw A3.0X8 MFZN2BL (VP156700) 40: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) 40c: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) 50: Bind Head Screw A4.0X8 MFZN2BL (VP156800) 80: Bind Head Screw A4.0X8 MFZN2BL (VP156800) 20d: Pan Head Scr

31、ew SP3.0X8 MFZN2Y (EK400500) 60C: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) 150A,B:Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) 150B-E:Pan Head Screw SP3.0X12 MFZN2Y (EL200070) (Fig. 3) (Fig. 4) Sub angle(R) Sub angle(L) Front panel assemblyFront panel assemblyDM circuit board assembl

32、y ANR circuit board assembly ANR DM Power transformer MAIN 5/5 40 50150A 30C A 60B 40C X 6 30B X 5 150E 60B 50 80 60C X 6 20d X 2 MAIN 4/5 MAIN 1/5 MAIN 3/5MAIN 2/5 150B 150C150D DG80-112 7 4.DM Circuit Board 4-1Remove the pre-main unit. (See Procedure 1.) 4-2Remove the two (2) screws marked 150A an

33、d the six (6) screws marked 40c. The DM circuit board can then be removed. (Fig. 3) 5.Power Transformer 5-1Remove the pre-main unit. (See Procedure 1.) 5-2Remove the four (4) screws marked 80. The Transformer can then be removed. (Fig. 3) 6.ANR Circuit Board 6-1Remove the pre-main unit. (See Procedu

34、re 1.) 6-2Remove the two (2) screws marked 150A and the seven (7) screws marked 50. The DM circuit board assembly can then be removed. (Fig. 3) 6-3Remove the screw marked 30C, the two (2) screws marked 40, the two (2) knobs marked 60B and the two (2) hexagonal nuts marked A. The ANR circuit board as

35、sembly can then be removed. (Fig. 3) 6-4Remove the two (2) screws marked 20d. The ANR circuit board can then be removed from the ANR circuit board assembly. (Fig. 3) 7.Main (1/5-2/5) Circuit Board 7-1Remove the pre-main unit. (See Procedure 1.) 7-2Remove the front panel assembly. (See Procedure 3.)

36、7-3Remove the DM circuit board assembly. (See Procedure 6-2.) 7-4Remove the ANR circuit board assembly. (See Procedure 6-3.) 7-5Each circuit board can then be removed in its manner as below. Main 1/5 Circuit Board Remove the six (6) screws marked 60C. The main 1/5 circuit board can then be removed.

37、(Fig. 4) Main 2/5 Circuit Board Remove the screw marked 150B. The main 2/5 circuit board can then be removed. (Fig. 4) Main 3/5 Circuit Board Remove the screw marked 150C. The main 3/5 circuit board can then be removed. (Fig. 4) Main 4/5 Circuit Board Remove the screw marked 150D. The main 4/5 circu

38、it board can then be removed. (Fig. 4) Main 5/5 Circuit Board Remove the screw marked 150E. The main 5/5 circuit board can then be removed. (Fig. 4) 8.PN Circuit Board 8-1Remove the pre-main unit. (See Procedure 1.) 8-2Remove the front panel assembly. (See Procedure 3.) 8-3Remove the six (6) screws

39、marked 90. The PN circuit board assembly can then be removed. (Fig. 5) 8-4Remove the seven (7) top cap assemblies from the PN circuit board assembly. 9.ANF Circuit Board 9-1Remove the pre-main unit. (See Procedure 1.) 9-2Remove the front panel assembly. (See Procedure 3.) 9-3Remove the two (2) knobs

40、 marked 110, the two (2) hexagonal nuts marked B and the hexagonal nut marked 120A. The ANF circuit board can then be removed. (Fig. 5) 10.ANF2 Circuit Board 10-1 Remove the pre-main unit. (See Procedure 1.) 10-2 Remove the hexagonal nut marked 120B. The ANF2 circuit board can then be removed. (Fig.

41、 5) 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 marked 100 and the four (4) screws marked 30D. The VR circuit board assembly can then be removed. (Fig. 5) 11-4 Remove the eight (8) hexa

42、gonal nuts marked C. The VR circuit board can then be removed from the VR circuit board assembly. (Fig. 6) 12.Replacement of The Lithium Battery 12-1 Remove the pre-main unit. (See Procedure 1.) 12-2 The lithium battery marked D, on the DM circuit board, can be replaced. DG80-112 8 Battery D Battery

43、 VS246400 VS246300(Battery holder for VS246400) 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 holder 30D: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) 90: Bind Head Tapping Screw-

44、B 3.0X6 MFZN2BL (EP600230) 120A,B:Hexagonal Nut 9.0X12X2 MFNI33 (LX200060) (Fig. 5) (Fig. 6) 120B 120A 90 100 Top cap assemblies VR circuit board assembly 110, B ANF2 ANF C Angle,motor volume 30D PN VR VR DG80-112 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

45、 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 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/R

46、XD0 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 Port 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

47、 (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 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

48、 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 P73/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

49、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 select Ground Port A FUNCTION HD6413002FP16 (XQ375A00) CPU DM : IC13 DG80-112 10 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17