Yamaha-AD-8-HR-Service-Manual电路原理图.pdf

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1、AD8HR 1 SERVICE MANUAL PA 011722 Copyright (c) Yamaha Corporation. All rights reserved. PDF-K6341 04.03 HAMAMATSU, JAPAN 200403-260000 CONTENTS SPECIFICATIONS. 3 DIMENSIONS. 6 PANEL LAYOUT. 7 CIRCUIT BOARD LAYOUT. 8 DISASSEMBLY PROCEDURE. 9 LSI PIN DESCRIPTION. 13 IC BLOCK DIAGRAM. 19 CIRCUIT BOARD.

2、 22 GAIN SETUP. 30 TEST PROGRAM. 32/43 INSPECTIONS. 54/58 UPGRADE. 62/65 ERROR MESSAGES. 68 PARTS LIST BLOCK DIAGRAM CIRCUIT DIAGRAM AD CONVERTER WITH REMOTE PREAMP （目次） （総合仕様） （寸法図） （） （） （分解手順） （LSI端子機能表） （IC図） （基板図） （GAIN設定） （） （総合検査） （） （） （） （回路図） RadioFans.CN 收音机爱 好者资料库 2 AD8HR Components havi

3、ng special 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.

4、 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. When installing on the PC board by soldering, solder using the connection terminals provided on the batte

5、ry 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 recharge these batteries. Do not disasemble the batteries. Never heat batteries or throw them into fire. ADV

6、ARSEL! 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 apparatti

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

8、fficial 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. 電池取扱 注意 電池誤交換爆発危険。交換場合、指定部品使用 。 IMPORTANT NOTICE This manual has been prov

9、ided 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 by the users, and have therefore not been restated. WARNING :Failure to fol

10、low 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 Yamaha product owners that all service required should be performed by an

11、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 technical capabilities, or establish a principal-agent relationship of any

12、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. Modifications are, therefore, inevitable and changes in specification are subject t

13、o 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 electricity your body may have accumulated by grounding yourself to the groun

14、d 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: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition,

15、 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

16、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 pr

17、oduct, wash your hands before handling food. 印商品、安全維持重要部品。交換場合、安全必指定部品使用。 WARNING RadioFans.CN 收音机爱 好者资料库 AD8HR 3 SPECIFICATIONS Analog Input INPUT 18 XLR-3-31Balanced AD converter24-bit linear 128-times Oversampling Digital Output DIGITAL OUT A, B D-Sub 25-pinBalanced Connectors WORD CLOCK IN (75 A

18、uto Terminated): BNC WORD CLOCK OUT :BNC HA REMOTE (PC-RS422):D-Sub 9-pin with PC-RS422 switch HA REMOTE (RS422):D-Sub 9-pin Controls +48V Master Switch GAIN/DATA encoder Keys WORD CLOCK SELECT1SELECT8 +48V HPF LEDs WORD CLOCK44.1kHz/48kHz/88.2kHz/96kHz /WORD CLOCK IN/DIGITAL OUT A LEVEL METER 188x6

19、 Segment SELECT 18 +48V 18, Selected Channel HPF 18, Selected Channel GAIN/DATA Display 7seg x3 Functions HPF Frequency GAIN 20Hz600Hz 62 dB to +10 dB (1 dB step) INPUT GAIN TRIM1.5 dB to 1.5 dB (0.1 dB step) AES/EBU Higher Sampling Rate Data Output Format Double Speed / Double Channel Panel Lock Pa

20、nel Brightness7 steps Miscellaneous Power Requirements100 V 35 W, 50/60 Hz 120 V 35 W, 60 Hz 230 V 35 W, 50 Hz J: U/C: Others: (J: 3P/2P AC Plug Adaptor) Dimensions (HxDxW)45 x 383.5 x 480 mm Net Weight5 kg Operation free-air temperature range 5 to 40 C Storage temperature20 to 60 C AccessoriesAC Ca

21、ble Rubber Feet x 4 Owners Manual General Specifications I/O Characteristics Analog Input Specifi cations Digital I/O Specifi cations Input T erminalsGAIN Actual Load Impedance For Use With Nominal Input level Connector NominalMax. before clip INPUT 18 62 dB 3k 50600 Mics equivalent to a 20 kHz filt

22、er with infinite dB/octave attenuation. * Dynamic Range is measured with an A-weighting filter. InputOutputConditionsMINTYPMAXUNITS INPUT 18DIGITAL OUT 18GAIN: 62 dB31dB INPUT 18DIGITAL OUT 18GAIN: +10 dB1.51dB InputOutputConditionsMINTYPMAXUNITS INPUT 18DIGITAL OUT 18GAIN: 62 dB31dB INPUT 18DIGITAL

23、 OUT 18GAIN: +10 dB1.51dB InputOutputConditionsMINTYPMAXUNITS INPUT 18DIGITAL OUT 18GAIN: 62dB to +10dB11dB InputOutputConditionsMINTYPMAXUNITS INPUT 18DIGITAL OUT 181 dBFs output 1kHz GAIN: 62 dB0.05% INPUT 18DIGITAL OUT 181 dBFs output 1kHz GAIN: +10 dB0.01% InputOutputConditionsMINTYPMAXUNITS INP

24、UT 18DIGITAL OUT 181 dBFs output 1kHz GAIN: 62 dB0.05% INPUT 18DIGITAL OUT 181 dBFs output 1kHz GAIN: +10 dB0.01% InputOutputConditionsMINTYPMAXUNITS INPUT 18DIGITAL OUT 18Rs=150, GAIN: 62 dB80dBFs INPUT 18DIGITAL OUT 18Rs=150, GAIN: +10 dB110dBFs InputOutputConditionsMINTYPMAXUNITS INPUT 18DIGITAL

25、OUT 18Rs=150, GAIN: 62 dB128dB InputOutputConditionsMINTYPMAXUNITS INPUT 18DIGITAL OUT 18GAIN: +10 dB110dB From/To To/FromConditionsMINTYPMAXUNITS CH NCH (N-1) or (N+1)adjacent inputs GAIN: +10dB80dB OutputConditionsMINTYPMAXUNITS INPUT 18hot & cold: No load464850V AD8HR 5 LED Level Meter DIGITAL OU

26、T A/B Pin Assignment Table Signal Data In Ch *1 *1. Data In Ch can be received only on DIGITAL OUT A. Data Out Ch OpenGND 1-21-23-45-67-8 Pin Hot15678 2, 3, 4, 9,11, 15, 16, 17 10, 12, 13, 22, 23, 24, 25 Cold1418192021 25 D-SUB 25 Pin female （） 14 131 D-SUB 9 Pin male 12345 6789 （） HA REMOTE Pin Ass

27、ignment Table PinSignal NamePinSignal Name 1N.C.6 RX+/DSR*1 2 RX-/RXD*1 *1. RS422/PC 7RTS 3 TX-/TXD *1 8CTS 4 TX+/DTR *1 9N.C. 5GND InputOutputConditionsMINTYPMAXUNITS INPUT 18DIGITAL OUT 18 OVER red LED: ON0dBFs 6 amber LED: ON6dBFs 12 amber LED: ON12dBFs 18 amber LED: ON18dBFs 30 green LED: ON30dB

28、Fs 48 green LED: ON48dBFs ParameterConditionsMINTYPMAXUNITS Sampling Frequency Frequency Range Normal Rate39.6950.88kHz Double Rate79.38101.76kHz Jitter of PLL DIGITAL IN fs=44.1kHz10ns DIGITAL IN fs=48 kHz10ns DIGITAL IN fs=39.6950.88 kHz20ns DIGITAL IN fs=88.2 kHz10ns DIGITAL IN fs=96 kHz10ns DIGI

29、TAL IN fs=79.38101.76 kHz20ns Internal Clock Frequency word clock : int 44.1 kHz44.1kHz word clock : int 48 kHz48kHz word clock : int 88.2 kHz88.2kHz word clock : int 96 kHz96kHz Accuracy word clock : int 44.1 kHz50ppm word clock : int 48 kHz50ppm word clock : int 88.2 kHz50ppm word clock : int 96 k

30、Hz50ppm Jitter word clock : int 44.1 kHz5ns word clock : int 48 kHz5ns word clock : int 88.2 kHz5ns word clock : int 96 kHz5ns Signal Delay analog input to digital outputfs=48 kHz0.9ms fs=96 kHz0.45ms 6 AD8HR DIMENSIONS 11 480 4419 353.5 383.5 35065 50250 45 （単位） （付属脚取付時*） When the included rubber f

31、eet are attached. Unit: mm Top View Side view Front view （寸法図） AD8HR 7 PANEL LAYOUT q WORD CLOCK indicators w WORD CLOCK button e +48V indicators r HPF indicators t Level meters y Channel Select buttons u +48V button i HPF button o Gain display !0 Gain control !1 +48V MASTER switch !2 POWER switch !

32、3 Grounding screwswitch !4 AC IN connector !5 HA REMOTE connector 1 !6 PC RS422 switch !7 HA REMOTE connector 2 !8 DIGITAL OUT A/B connector !9 WORD CLOCK OUT connector 0 WORD CLOCK IN connector 1 INPUT 18 connectors Top Panel Rear Panel （） （WORD CLOCK ） （WORD CLOCK ） （+48V ） （HPF ） （） （選択） （+48V ）

33、（HPF ） （GAIN ） （GAIN ） （+48V MASTER ） （POWER ） （用） （AC IN 端子） （HA REMOTE 1 端子） （PC RS422 ） （HA REMOTE 2 端子） （DIGITAL OUT A/B 端子） （WORD CLOCK OUT 端子） （WORD CLOCK IN 端子） （INPUT1 8 端子） （） （） 8 AD8HR CIRCUIT BOARD LAYOUT DC MAIN COMB SW SUB PN(PNCOM) (PNCOM) (PNCOM) (PNCOM)(PNCOM) HIC-HA （） AD8HR 9 DISA

34、SSEMBLY PROCEDURE 1. (所要時間: 約3 分) 1-1.5009本5306本外、 外。 (図1) 2.SUB (所要時間: 約4分) 2-1.外。 (1項参照) 2-2.A2本B2本外、SUB 外。 (写真 1) 500: Bind Head Tapping Screw-S3.0X6 MFZN2BL (EP630210) 530: Bind Head Tapping Screw-S4.0X8 MFZN2BL (VI693100) Fig.1 Top cover 500 （ ） 500 530530 500 500 Top view Rear view Side view S

35、ide view 3.COMB (所要時間: 約4 分) 3-1.外。 (1項参照) 3-2.SUB外。 (2項参照) 3-3.C2本外、COMB 外。 (写真 1) AB DC Rear view Photo. 1 A, D: Hex Locking ScrewJFS-2.6S-BIWL (VS604900) B, C: Hex Locking Screw （分解手順） 1.Top cover (Time required: About 3 minute) 1-1.Remove the nine (9) screws marked 500 and the six (6) screws mar

36、ked 530. The top cover can then be removed. (Fig.1) 2.SUB Circuit board (Time required: About 4 minute) 2-1.Remove the top cover. (See Procedure 1.) 2-2.Remove the two (2) screws marked A and the two (2) screws marked B. The SUB circuit board can then be removed. (Photo. 1) （） （） （図1） 3.COMB Circuit

37、 board (Time required: About 4 minute) 3-1.Remove the top cover. (See Procedure 1.) 3-2.Remove the SUB circuit board. (See Procedure 2.) 3-3.Removr the two (2) screws marked C. The COMB circuit board can then be removed. (Photo. 1) （写真1） （六角） （六角） 10 AD8HR 70: Bind Head Tapping Screw-S 3.0X6 MFZN2BL

38、 (EP630210) 4.MAIN (所要時間: 約7 分) 4-1.外。 (1項参照) 4-2.SUB外。 (2項参照) 4-3.COMB外。 (3 項参照) 4-4.50 16 本、 60 1 本、 70 7 本、 D2 本外、MAIN外。 (写真1, 2, 3) MAIN外時、 INPUT端子 先外、外。 1. 外工具 A 差込。 (写真4) 2. B 抜取 外。 (写真4) 70 70 70 MAIN Battery VN103500 VN103600(Battery holder for VN103500) Notice for back-up battery removal Pu

39、sh 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 Lithium Battery（電池） Photo. 3 Rear view Photo. 2 Top view 50: Bind Head Tapping Screw-B 2.6X8 MFZN2BL (VB096700) 60:

40、Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) 5.DC (所要時間: 約3 分) 5-1.外。 (1項参照) 5-2.2304 本外、DC外。 (写真 5) 5060 50 MAIN MAIN Tool (AAX52710) Tool (AAX52710) Tool (AAX000021) （ ） Push lever AB Photo. 4 （） 4.MAIN Circuit board (Time required: About 7 minute) 4-1.Remove the top cover. (See Procedure 1.

41、) 4-2.Remove the SUB circuit board. (See Procedure 2.) 4-3.Remove the COMB circuit board. (See Procedure 3.) 4-4.Remove the sixteen (16) screws marked 50, the screw marked 60, the seven (7) screws marked 70 and the two (2) screws marked D. The MAIN circuit board can then be removed. (Photo. 1, 2, 3)

42、 First of all, remove the push lever of the INPUT terminal for easy removal of the main circuit board. 1.Insert with a latch-removing tool as shown in (A). (Photo 4) 2.Remove the push lever, using a knob extractor lever as shown in (B). (Photo 4) （写真3） （写真2） （） （） 5.DC Circuit board (Time required:

43、About 3 minute) 5-1.Remove the top cover. (See Procedure 1.) 5-2.Remove the four (4) screws marked 230. The DC circuit board can then be removed. (Photo. 5) （写真4） AD8HR 11 6.電源 (所要時間: 約4 分) 6-1.外。 (1項参照) 6-2.1304本外、電源外。 (写真 6) 7. Assy (所要時間: 約3 分) 7-1.外。 (1項参照) 7-2.2102本、 2201本外、 Assy 外。 (写真7, 8) 21

44、0 220 AC inlet assembly（Assy） 130 Power supply unit（電源 ） 130: Bind Head Tapping Screw-S3.0X6 MFZN2BL (EP630210) Photo. 6 Top view 210: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) Photo. 7 220: Bind Head Screw 4.0X8 MFZN2BL (EG340360) Photo. 8 230 DC Photo. 5 Top view 230: Bind Head Tapping Sc

45、rew-S3.0X6 MFZN2BL (EP630210) 6.Power supply unit (Time required: About 4 minute) 6-1.Remove the top cover. (See Procedure 1.) 6-2.Remove the four (4) screws marked 130. The power supply unit can then be removed. (Photo. 6) 7.AC inlet assembly (Time required: About 3 minute) 7-1.Remove the top cover

46、. (See Procedure 1.) 7-2.Remove the two (2) screws marked 210 and the screw marked 220. The AC inlet assembly can then be removed. (Photo. 7, 8) （） （写真6） （） （写真7） （小） （写真8） （写真5） （） 12 AD8HR 300300 PN 9.SW (所要時間: 約4分) 9-1.外。 (1項参照) 9-2.外。 (8項参照) 9-3.PSW外。 (写真12) 9-4.2802 本外、SW外。 (写真12) 10.PN (所要時間:

47、約4 分) 10-1.外。 (1項参照) 10-2.外。 (8項参照) 10-3.3003 本外、PN 外。 (写真13) 470 460 Bottom view Top view 460: Flat Head Screw-S 3.0X6 MFAN2Y (WB451000) Photo. 9 470: Bind Head Tapping Screw-S 3.0X6 MFZN2BL (EP630210) Photo. 10 Front view Front panel （） Knob assembly （Assy） Hexagonal nut 280 （特殊六角） Button PSW （PSW

48、） Photo. 13 300: Bind Head Tapping Screw-S3.0X6 MFZN2BL (EP630210) Photo. 11 280: Bind Head Tapping Screw-S 3.0X6 MFZN2BL (EP630210) Photo. 12 8.Front panel (Time required: About 4 minute) 8-1.Remove the top cover. (See Procedure 1.) 8-2.Remove the screw marked 460, the three (3) screws marked 470, the knob (GAIN control) and the hexagonal nut of a front panel side. Th