Yamaha-AD-824-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL PA 011523 HAMAMATSU, JAPAN 1.45K-9731 K Printed in Japan 00.07 CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 5 CIRCUIT BOARD LAYOUT 6 DIMENTIONS 8 BLOCK DIAGRAM 9 DISASSEMBLY PROCEDURE 10 LSI PIN DESCRIPTION 14 IC BLOCK DIAGRAM 16 CIRCUIT BOARDS 19 INSPECTION 36 TEST PROGRAM 39 FLASH ROM UPG

2、RADE 43 ERROR MESSAGES 45 PARTS LIST OVERALL CIRCUIT DIAGRAM AD CONVERTER 200006*-150000 This document is printed on chlorine free (ECF) paper with soy ink. RadioFans.CN 收音机爱 好者资料库 AD824 2 WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition,

3、 other electrical/electronic and/or plastic (where applicable) components may also 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 O

4、R PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, 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 pro

5、duct, wash your hands before handling food. 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

6、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 these reasons, we

7、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, recognition of any a

8、pplicable 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 improve Yamaha products

9、. 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 components. Discharge any

10、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 before you apply power to the unit. WARNING Components having sp

11、ecial characteristics are marked and must be replaced with parts having specification equal to those originally installed. LITHIUM BATTERY HANDLING This product uses a lithium battery for memory back-up. WARNING:Lithium batteries are dangerous because they can be exploded by improper handling. Obser

12、ve 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. When installing on the PC board by soldering, solder using the connection terminals provided on the battery cel

13、ls. 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 recharge these batteries. Do not disassemble the batteries. Never heat batteries or throw them into fire. ADVARSEL

14、! Lithiumbatteri-Eksplosionsfare ved fejlagtig hndtering. Udskiftning m kun ske med batteri af samme fabrikat og type. Levr det brugte batteri tilbage til leverandren. VARNING Explosionsfara vid felaktigt batteribyte. Anvnd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillver

15、karen. Kassera anvnt batteri enligt fabrikantens instruktion. VAROITUS Paristo voi rjht, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hvit kytetty paristo valmistajan ohjeiden mukaisesti. The following information complies with Dutch Officia

16、l 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 backup batterij deze beschrijving. RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS AD824 3 IMPORTANT NOTICE FOR THE UNITED K

17、INGDOM Connecting the Plug and Cord IMPORTANT.The wires in this main lead are coloured in accordance with the following code: BLUE:NEUTRAL BROWN: LIVE As the colours of the wires in the main lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug,

18、proceed as follows: The BLUE wire must be connected to the terminal that is marked with the letter N (or coloured BLACK). The BROWN wire must be connected to the terminal that is marked with the letter L (or coloured RED). Be certain that neither core is connected to the earth terminal of the three

19、pin plug. MY8-AE, MY8-TD Sampling rate MY8-AT AD conversion resolution Frequency response Dynamic range *1 Gain error THD *2 Hum equivalent to a 20 kHz filter with infinite dB/ octave attenuation. *2. Measured with a 6 dB/octave filter 80 kHz. *Where dB represents a specific voltage, 0 dB is referen

20、ced to 0.775 V rms. AD824 4 *1. 24-bit linear, 128-times oversampling A/D converters. *2. XLR-type connectors are electronically balanced (pin 1 = ground, pin 2 = hot, pin 3 = cold). *3. TRS phone jacks are electronically balanced (tip = hot, ring = cold, sleeve = ground). *Where dB represents a spe

21、cific voltage, 0 dB is referenced to 0.775 V rms. Analog Input ConnectionGAIN Actual Load Impedance For Use with Nominal Connector Input Level Nominal Max. before clip INPUT 18 *1 INSERT IN 18 3k lines 10k W 50600 mics & 600 lines 600 lines -62 dB +10 dB -62 dB (615 V) +10 dB (2.45 V) +10 dB (2.45 V

22、) -48 dB (3.08 mV) +24 dB (12.28 V) +24 dB (12.28 V) XLR-3-31 type (balanced)*2 TRS phone jack (balanced)*3 *1. TRS phone jacks are electronically balanced (tip = hot, ring = cold, sleeve = ground). *Where dB represents a specific voltage, 0 dB is referenced to 0.775 V rms. Analog Output Connection

23、Actual Source Impedance For Use with Nominal Connector Output Level Nominal Max. before clip INSERT OUT 18150 10k lines +10 dB (2.45 V) +24 dB (12.28 V) TRS phone jack (balanced)*1 Digital I/O Connection COM PC/RS422 COM RS422 WORD CLOCK IN WORD CLOCK OUT SLOT Format mini YGDAI Level/Impedance RS232

24、C/RS422 RS422 TTL, 75 (ON/OFF) TTL, 75 Connector 9-pin D-sub (male) 9-pin D-sub BNC BNC ONOFF POWER AD CONVERTER 12345678 PEAK SIGNAL NOMINAL PEAK SIGNAL +48V SEL NOMINAL +48V WORD CLOCK INTERNAL 44.1kHzBNCSLOT48kHz SEL dB GAIN OFF ON +48V MASTER INPUT (BAL) OUT (BAL) IN (BAL) INSERT COM NVERTER AD8

25、24 82314567 83214567 84321567 SLOT OUT PC RS422 75IN ON OFF WORD CLOCK RS422 1 6789101112 13 151617181920 22 21 23 24 14 2345 1PEAK, NOMINAL & SIGNAL indicators 2GAIN display 3GAIN control 4POWER indicator 5POWER switch 6WORD CLOCK indicators 7WORD CLOCK Source button 8Channel SEL indicators 9Channe

26、l SEL buttons 10Channel +48V indicators 11+48V on/off button 12+48V MASTER indicator 13+48V MASTER switch 14Power cable 15 16 COM RS422 port COM PC/RS422 switch 17COM PC/RS422 port 18WORD CLOCK OUT connector 19WORD CLOCK 75 ON/OFF switch 20WORD CLOCK IN connector 21INPUT (BAL) connectors 22SLOT 23IN

27、SERT OUT (BAL) connectors 24INSERT IN (BAL) connectors PANEL LAYOUT AD824 5 Front Panel Rear Panel AD824 6 CIRCUIT BOARD LAYOUT MAIN MYSL HA JK AD AC Rear panel assembly Front panel assembly Power transformer PN SW CN909 CN903 CN906 CN902 CN904 CN905 CN901 CN908CN907 CN101CN201 CN002 CN001 CN961 CN9

28、60 CN962 CN963 CN052CN053 CN051 CN054 AD824 7 JK AD CN103 AD- CN104 AD- CN204 CN203 CN202CN102 CN005 CN004CN002CN001 CN003 CN004 CN001 CN003 MYSL AC DC PN SW CN002 CN008CN010CN011 CN007 CN006 CN005 CN009 AD824 8 DIMENTIONS 67.567.5345 3535410 430 13 88 H: 97.5 3030 48 (33) 274 10.8 4517355 D: 377.6

29、W: 480 Unit: mm CH1 INPUT JK101 INSERT OUT JK102 CN002 CN101CN102 IC101 CN003 FS SDATA OUT1 8 , FS-AD , 64FS-AD , 256FS-AD , RESET-AD 64FS 256FS RESET CN002 CN962 LEVEL PADPAD HA1HA1 HA2A ,HA2B ,HA2C +48V Q102 RY101 IC101 IC102 PADHA2 A / D PERK NOMINAL SIGNAL HA1 BAINSERT IN JK103 IC103 771 IC104 I

30、C104 AINL+ AINL IC105 AK5342 BUFF IC008 A / D IC305 AK5342 AINR+ AINR CH2 CH3 CH4 D-FF CH5 CH6 CH7 CH8 ADD-07 ADD-07 RST-HA , A1-HA , A2-HA , A3-HA , CS-HA CPU SH7042A IC911 IC916 IC919 PE4 TX, RX LOCK44 9.8304MHz LOCK48 MUTE COMA-TX, TX-COMB 256k SRAM IC923 256k SRAM IC924 8M ROM IC927 BUFF IC932 C

31、N901CN054 CN051b CN051a CN901OUT3/4, OUT7/8 OUT1/2, OUT5/6 CN904 CN905 CN961SWASWA,SWBECA,ECB+48 CN960 CN902CN053 CN902 CN053 CN054 BUFF IC933 MUTE PC/RS422 RS422 IC901 COM B/SLOT SELECT IC903 INT/EXT SELECT IC913 SELECT IC910 D-FF IC907 INT 48kHz X902 INT 44.1kHz X901 WORD CLOCK SELECT IC921 PLL &

32、TIMING GEN. IC922 CN903 CN909 PC ON OFF RS422 EXT-DIRIN XI CN907 CN908 RESET SLOT SLOT D-FF D-FF RES EXTAL 44.1kHz 48kHz BNC SLOT WORD CLOCK INTERNAL +48V x 8SEL x 8 SEL18 +48V MASTER Rotary Encoder GAIN dB OUT IN JK902 JK901MAIN MYSL HA HA AD AD A / D IC505 AK5342 AD A / D IC705 AK5342 AD PN AD PN

33、JK AD COM WORD CLOCK KEC-92536 IC001 006 4 1518 6 7 9 8 5 25 24 EC960 IC928, 929 84 74 87 9 5 47,48 90 88 1515 12 3 113,9 3636 56 5,6 19 3,5 9,15 2,4 3,4 7 7 11 SW901 BLOCK DIAGRAM AD824 9 HA Top cover IF plate 460 530 300450 X16290A 500 X14 310 500: Bind Head Tapping Screw-B A4.0X8 MFZN2BL (VC68880

34、0) Fig. 1 330: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) 390: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) 530: Bind Head Screw A4.0X12 MFZN2BL (VP156900) Fig. 2 A MAIN 390X6330330 3.JK Circuit Board and AD Circuit Board 3-1Remove the top cover. (See procedure 1.) 3-2Remove the HA circuit

35、 board. (See procedure 2.) 3-3Remove the two (2) screws marked 430. The AD shield sheet can then be removed. (Fig. 4) 3-4Remove the six (6) screws marked 390 and the two (2) screws marked 400. The JK circuit board can then be removed. (Fig. 2 and Fig. 3) 4.AD Circuit Board 4-1Remove the top cover. (

36、See procedure 1.) 4-2Remove the HA circuit board. (See procedure 2.) 4-3Remove the JK circuit board. (See procedure 3.) 4-4Remove the six (6) screws marked 330, the two (2) screws marked 350 and the two (2) screws marked 370. The AD circuit board can then be removed. (Fig. 2 and Fig. 3) AD824 10 DIS

37、ASSEMBLY PROCEDURE 1.Top Cover 1-1Remove the fourteen (14) screws marked 500. The top cover can then be removed. (Fig. 1) 2.Circuit Boards and Units Remove the top cover, each circuit board and unit can then be removed. Circuit Board and Unit MAIN HA DC Assembly Power Transformer A 290 300 310 450 4

38、60 210 190 Screw Bonding Screw 4.0X8 MFZN2BL (VS154500) Bonding Screw 3.0X6 MFZN2BL (VS863000) Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) Bonding Tapping Screw 3.0X8 MFZN2BL (VN41330) Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) Bind Head Tapping Screw-B A4.0X6 MFZN2BL (VC688800) Bind

39、Head Tapping Screw-B A4.0X6 MFZN2BL (VC688800) 4 1 2 5 16 4 2 4 Ref. No.ScrewQTY 2 2 2 1 2 1 5 5 Fig. AD824 11 400 350 370 370 JK AD 350: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) 370: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) 400: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230)430:

40、 Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) Fig. 3Fig. 4 400 430430 AD shield sheet 5.MYSL Circuit Board *Note that remove card before following operation. 5-1Remove the top cover. (See procedure 1.) 5-2Remove the MAIN circuit board. (See procedure 2.) 5-3Remove the two (2) screws marked 530

41、. The IF plate can then be removed. (Fig. 2) 5-4Remove the four (4) screws marked 260. The OPT assembly can then be removed. (Fig. 5) 5-5Remove the two (2) screws marked 240. The MYSL circuit board can then be removed. (Fig. 5) 6.AC Circuit Board 6-1Remove the top cover. (See procedure 1.) 6-2Remove

42、 the MAIN circuit board. (See procedure 2.) 6-3Remove the three (3) screws marked 50A and the two (2) screws marked 110A. The AC circuit board can then be removed. (Fig. 6) *The fuse is not a part of the AC circuit Board. When you replace the AC circuit board, you should remove the fuse from the boa

43、rd, and put it back into the holder on the new board. 7.DC Circuit Board 7-1Remove the top cover. (See procedure 1.) 7-2Remove the DC assembly. (See procedure 2.) 7-3Remove the four (4) screws marked 60. The transistor holder can then be removed. (Fig. 7) 7-4Remove the three (3) screws marked 40. Th

44、e DC circuit board can then be removed. (Fig. 7) *The four fuses are not part of the DC circuit Board. When you replace the DC circuit board, you should remove the fuses from the board, and put it back into the holder on the new board. 60 140 140 140 DC 40: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN4

45、13300) 60: Pan Head Screw SP4.0X8 MFZN2Y (EL200020) Fig. 7 140: Oval Head Screw B4.0X10 MFZN2BL (V6221000) Fig. 8 DC Assembly 40 40 40 Transistor holder Rack mount angle Rack mount angle 140 Fuses Fuses AD824 12 8.PN Circuit Board and SW Circuit Board 8-1Remove the top cover. (See procedure 1.) 8-2R

46、emove the six (6) screws marked 140. The right and left rack mount angles can then be removed. (Fig. 8) 8-3Remove the knob marked 110B. (Fig. 9) 8-4Remove the six (6) screws marked 80. The front panel can then be removed. (Fig. 9) AC 250: Bind Head Screw 4.0X8 MFZN2BL (EG340360) 260: Bonding Tapping

47、 Screw-B 3.0X8 MFZN2BL (VN413300) Fig. 5 DC assembly OPT assembly MYSL Power transformer 190 260 260 210 250 250 210 110A X2 Fuse AC 50A: Bind Head Tapping Screw-B A4.0X8 MFZN2BL (VC688800) 110A: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) Fig. 6 Rear Panel Assembly 50A X3 Fig. 10 Battery VN103

48、500 VN103600(Battery holder for VN103500) Notice for back-up battery removal Push the battery as shown in figure, then the battery will pop up. Druk de batterij naar beneden zoals aangeven in de tekening, de batterij springt dan naar voren. Battery Battery holder MAIN 80 PN SW 80: Oval Head Screw 4.

49、0X8 MFZN2BL (VS153600) Fig. 9 30: Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) 50B: Bonding Screw 3.0X6 MFZN2BL (VS863000) 80 30 50B 50B 30 8080110B 90 Front panel 30 AD824 13 8-5PN Circuit Board: Remove the four (4) screws marked 30. The PN circuit board can then be removed. (Fig. 9) 8-6SW Circuit Board: Remove the PSW knob marked 90. (Fig. 9) Remove the two (2) screws marked 50B. The SW circuit board can then be removed. (Fig. 9) 9.Replacement of the Lithium Battery 9-1Remove the top cover. (See procedure 1.) 9-2Remove the