Yamaha-AI-8-Service-Manual电路原理图.pdf

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1、1 YDP-123C SERVICE MANUAL PA011505 Copyright (c) Yamaha Corporation. All rights reserved. PDF-K-* K 01.03 HAMAMATSU, JAPAN CONTENTS REVISED PAGE LIST . 2-1 SPECIFICATIONS .3-1 PANEL LAYOUT.3-2 DIMENSIONS .3-3 CONNECTOR CIRCUIT DIAGRAM . 4 BLOCK DIAGRAM . 6 DISASSEMBLY PROCEDURE . 7 LSI PIN DESCRIPTI

2、ON. 11 IC BLOCK DIAGRAM . 14 CIRCUIT BOARDS . 16 INSPECTION . 21/23 TEST PROGRAM . 26/31 ERROR MESSAGES. 42 PARTS LIST CIRCUIT DIAGRAM ANALOG INPUT BOX MODELREFERENCE SERVICE MANUAL AI8-ML8LMY2-MLPA011502 AI8-AD8LMY4-ADPA011503 AI8-ML4AD4 LMY4-ADPA011503 LMY2-MLPA011502 AI8-ML8ABLMY2-MLABPA011736 AI

3、8-ML8FLMY4-MLFPA011737 RadioFans.CN 收音机爱 好者资料库 AI8 2-1 REVISED PAGE LIST SPECIFICATIONS PANEL LAYOUT DIMENSIONS BLOCK DIAGRAM DISASSEMBLY PROCEDURE IC BLOCK DIAGRAM CIRCUIT BOARDS AC, IPC3, DR, PSB, LED1 DC, MB1 IFC2 INSPECTION TEST PROGRAM ERROR MESSAGES ITEM 3-1 3-2 3-3 6 7,9 14 1620 16 19 20 2122

4、 2327 42 PAGE OVERALL ASSEMBLY SIDE PANEL ASSEMBLY MOTHER ASSEMBLY ELECTRICAL PARTS ITEM 2, 3, 4 4, 5 6 712 PAGE UNC CIRCUIT DIAGRAM002 003 IFC2 CIRCUIT DIAGRAM002 003 004 005 006 007 008 IPC1 CIRCUIT DIAGRAM IPC3 CIRCUIT DIAGRAM AICOM CIRCUIT DIAGRAM 002 ITEM 3 4 9 10 11 12 13 14 15 16 17 18 PAGE R

5、adioFans.CN 收音机爱 好者资料库 AI8 2-2 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 chemicals found by the California Health and Welfare Agen

6、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

7、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. IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service person

8、nel. 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 follow appropriate service and safety procedures when servicing this product

9、 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 authorized Yamaha Retailer or the appointed service representative. IMPOR

10、TANT: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 form. The data provided is belived to be accurate and applicable to the u

11、nit(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 to change without notice or obligation to retrofit. Should any discrepancy

12、 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 ground bus in the unit (heavy gauge black wires connect to this bus). IMPORTANT

13、:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. IMPORTANT NOTICE FOR THE UNITED KIN

14、GDOM 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, pr

15、oceed 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 pi

16、n plug. SPECIFICATIONS AI8 3-1 Sampling frequency (external sync) Power supply Power consumption Dimensions (W x H x D) Weight Operating temperature Power cable length Cooling fan speed Accessories 39.69 kHz 50.88 kHz USA and Canada: 120 V, 60 Hz Others: 230 V, 50 Hz 120 W 480 mm x 141.5 mm x 466.8

17、mm 15.4 kg 10 35 C 2.1 m always fixed Connection cable (68-pin, D-sub, half-pitch) x 1, Length: 3 m I/O connectors OUTPUT A, B, C WORD CLOCK IN WORD CLOCK OUT Level RS-422 TTL/75 (ON/OFF) TTL/75 Type D-sub, half-pitch, 68-pin connector (female) BNC Connector BNC Connector Digital I/Os Card LMY2-ML L

18、MY4-AD Input Channel 1A or 1B, 2A or 2B Channel 1 4 Slots UNIT NO. PHANTOM MASTER ON OFF +48V POWER ON/ OFF 12345678 ANALOG INPUT BOX INPUT UNIT ID PHANTOM MASTER ON OFF +48V POWER ON/ OFF ANALOG INPUT BOX * The illustration shows the AI8 analog input box. 75 IN CBA OUTPUT ON OFF OUT A B C CONTROL P

19、ORT WORD CLOCK 75 IN CBA OUTPUT ON OFF OUT A B C CONTROL PORT WORD CLOCK 1 2 3 4 6 7 5 1INPUT UNIT ID indicator 2PHANTOM MASTER switch, indicator 3POWER ON/OFF 4CONTROL PORT switch 5OUTPUT connectors A, B, C 6WORD CLOCK IN jack, ON/OFF switch 7WORD CLOCK OUT jack AI8 3-2 PANEL LAYOUT Front Panel Rea

20、r Panel DIMENSIONS AI8 3-3 455 466.8 480 430 132 (3U) UNIT NO. PHANTOM MASTER ON OFF +48V POWER ON/ OFF 12345678 141.5 ANALOG INPUT BOX 9.5 Unit: mm POWER TRANSFORMER FAN 3PCN600 8PCN101 14PCN100 5PCN127 6PCN103 2PCN700 5P CN002 3P CN802 2P CN800 4P CN701 3P CN702 4P CN001 5PCN510 13PCN709 13PCN710

21、10PCN711 10PCN712 13PCN705 13PCN706 10PCN707 10PCN708 5P CN511 20PCN102 14PCN100 4P CN101 2PCN300 4P CN301 2PCN302 4PCN303 12PCN200 4PCN400 30PCN101 14PCN509 8PCN507 8PCN506 8PCN505 8PCN504 13PCN701 13PCN702 10PCN703 10PCN704 8PCN502 8PCN501 6PCN512 10PCN104 10PCN103 13PCN102 13PCN101 8PCN503 8P CN5

22、08 4PCN126 4PCN125 6PCN124 4PCN123 6PCN122 4PCN121 20PCN120 30PCN119 8PCN117 8PCN116 8PCN115 8PCN114 8PCN113 8PCN112 8PCN111 8PCN110 8PCN118 CN109 100P CN108 100P CN107 100P CN106 100P CN105 100P CN104 100P CN103 100P CN102 100P CN101 100P FG CONTROL PORT A B C WORD CLOCK ON OFF 75 IN OUT OUTPUT A B

23、 C 1 2 3 4 5 6 7 8 SLOT NO. ON OFF PHANTOM MASTER +48V POWER ON/OFF INPUT UNIT ID * * PSB MB1 UNC IFC2 IPC1 10PCN104 10PCN103 13PCN102 13PCN101 IPC1 10PCN104 10PCN103 13PCN102 13PCN101 5PCN300 5PCN200 IPC1 IPC3 DC DR AC LED1 KEC-92522-2 AI8 4 CONNECTOR CIRCUIT DIAGRAM Circuit BoardCN No.Pin No. DCCN

24、100 2 3 4 5 6 7 8 9 10 11 12 13 14 DCCN1011 2 3 DCCN2001 2 3 4 5 6 7 8 9 DCCN3001 2 DCCN3011 2 DCCN3021 2 DCCN3031 2 DCCN4001 2 3 4 IFC2CN5091 2 3 4 5 6 7 8 9 10 11 12 13 14 MB1CN1261 3 1 4 MB14 3 MB14 3 MB15 IFC21 2 MB12 1 MB12 1 MB13 IFC23 4 MB14 IFC25 6 MB1 4 3 MB14 3 MB14 3 MB11 MB11 MB11 DR1 2

25、MB16 6 MB12 1 MB15 MB12 LED11 2 3 4 LED11 2 3 4 5 6 7 8 9 10 11 12 13 14 LED17 LED1 CN122 CN124 CN127 CN103 CN122 CN124 CN127 CN103 CN127 CN103 CN121 CN123 CN125 CN121 CN123 CN125 CN800 CN122 CN127 CN122 CN124 CN101 CN100 CN101 CN101 CN124 6 5 Circuit BoardCN No.Pin No. MB1 ACCN7011 4 PSBCN6001 3 KE

26、C-92522-3 AI8 5 1 2 3 4 5 6 7 Register Decoder RAM CPU DSP5 WC SEL stopped at the end of the page for any other NG. Main item Checked in order from top to bottom. Completed main items have marks next to them. SRAMOK: LED lit up NG: LED flashes on (0.2 s) - Off (0.2 s) - On (0.2 s) - Off (0.1 s) Flas

27、hOK: LED lit up NG: LED flashes on (0.1 s) - Off (0.1 s) - On (0.1 s) - Off (0.1 s) () Terminal status display Delimited in units of 8 digits right justified in the order upper then lower. 0: Normal 1: Abnormal -: Ignored Abnormal port name Previously read value. gives the correct value. 4-digit hex

28、adecimal notation Gives the current version and the latest version Using the terminal status display and the corresponding pin numbers in the example below, it is possible to determine that the fifth one from left on the terminal status display is for pin 32. Please refer to the AI8-UNC Test for cha

29、rts showing the same detailed result as those up until now. NG sample Please refer to the AI8-UNC Test for NG charts. * FS Line Check 3-2. AI8-SLOT Clock Line TestOK 3-2. AI8-SLOT Clock Line Test OK OK Fs00000000 64Fs00000000 256Fs00000000 NG example FS Line Check: Now Checking FS Check 256Fs 3-2. A

30、I8-SLOT Clock Line Test 3-2. AI8-SLOT Clock Line Test NGFS Line Check: NGSLOT4 Fs- xx.xxx kHz 64Fs 256Fs - xx.xxx kHzX64 - xx.xxx kHzX256 NGSLOT6 256Fs- xx.xxx kHzX256 (-xx.x%) (+xx.x%) (-xx.x%) (-xx.x%) NG* FS Line Check Fs00010000 64Fs00010000 256Fs00010100 The detected FS frequency is displayed a

31、nd the percentage deviation from the ideal state is displayed. The values for 64 Fs and 256 Fs are displayed in such a way that they can be easily grasped. Basically, the same as up till here AI8 26 * Data Bus Test * Voltage Check * Address Bus Test00000000 00000000OK 00000000OK 00000000 00000000+15

32、V 00000000-15V 00000000+5V +48V * /CON Line Test00000000OK 3-1. AI8-SLOT Initial TestOK 3-1. AI8-SLOT Initial Test OK Data Bus Test:OK Voltage Check:OK /CON Line Test:OK OK NG example Address Bus Test: Now Checking /CON Line Test 3-1. AI8-SLOT Initial Test 3-1. AI8-SLOT Initial Test NGAddress Bus Te

33、st: NGSLOT6 111 1111111- NGData Bus Test: NGSLOT4 NGSLOT6 11111111 11111111 11111111 11111111 NGVoltage Check: NGSLOT4 +48V= +xx.xxV +15V= +xx.xxV (-xx.x%) (+xx.x%) NGSLOT6 +5V= +xx.xxV (-xx.x%) NG/CON Line Test:00010100 * Data Bus Test * Voltage Check * Address Bus Test00000100 00010100NG 00010100N

34、G 00010000 00010000+15V 00000000-15V 00000100+5V +48V * /CON Line Test00010100NG NG 3-1. AI8 - Slot Initial Test Checks slot operation by checking the minimum necessary number of pins. Stopped the moment an actual Addr.BusTest or DataBusTest NG appears. The results for each slot are displayed in ord

35、er from the left. A mark is made for each check to show the progress of the checks. (Blank: Not yet checked; 0: Normal; 1: Abnormal; N: No response) First, all the voltages for one slot are checked, then this is repeated for the next slot. (The notation is each voltage x 8 slots, but the check order

36、 is each slot x all voltages.) The detected voltage is displayed and the percentage deviation from the ideal state is displayed. This is shown for each slot. The +48V check assumes that the PHANTOM switch is On. It must be switched on at the start of the AI8 inspection. 3-2. AI8 - Slot Clock Line Te

37、st This test checks around the slot clock. * Digital Signal line Test 3-3. AI8-SLOT Data Line TestOK 3-3. AI8-SLOT Data Line Test OK OK SO00000000 Digital Signal Line Test: 3-3. AI8 - Slot Data Line Test This test checks around the serial signals. Displays which pin number is NG. The main part of th

38、e address bus is displayed. (1: NG; 0: OK) NG sample Please refer to page 25 for NG charts. Basically, the same as up till here The switching of Digital Line by the LMY-SLOT inspection jig and ID conversion jig will be inspected automatically. AI8 27 ONOFF For the 75 switch item, the pop-up box is d

39、isplayed below and the inspector judges visually on the oscilloscope. Please check WordClock 75ohm SW. NGOK Normal behavior on the oscilloscope for 75 switch. For the jitter * kHz item, the pop-up box is displayed with the system in the 48/44.1 kHz output state to ask the user to measure the jitter.

40、 The inspector judges the jitter. Please check Jitter (48kHz). NGOK Please check Control Input Port SW. NGOK When moving from the jitter measurement to the In/Out check, the the pop-up box is displayed to ask the user to change the connections. Connect AI8 BNC Out to AO8 BNC In. OK For the LED light

41、ing order, see *1. If the LEDs light this way, they are OK. (*1) 7-segment LED lighting order 0.0. 1.1 .2.2. 9.9. * Control Input Port SW 4. AI8-IPC3, LED1 TestOK 4. AI8-IPC3, LED1 Test OK OK * W.CLK 75ohm SWOK * Phantom Master SWOK * 7segments LEDOK * W.CLKOK In 48 kHz + 6% In 44.1kHz - 10% Jitter

42、48 kHz Jitter 44.1kHz DIR2 In/Out Control Input Port SW: OKWordClock 75ohm SW: OKPhantom Master SW: OK7segments LED: OKW.CLK: Control Input Port SW= xxx 4.AI8 - IPC3, LED1 test This test checks around the AI8 - IPC3 and LED1. When other checks are necessary, the pop-up dialog box is displayed to ask

43、 the inspector to select OK or NG and the system stands by until the inspector makes a selection. The current switch status is displayed in real time and the inspector looks at the behavior of the system and judges it OK/NG. * RQOK 5-1. AI8-IPC1 PortA TestOK 5-1. AI8-IPC1 PortA Test SO:OK RQ:OK AK:O

44、K W.CLK:OK CONTROL:OK ID: MSB/LSB: 2CH/4CH: OK OK OK * SOOK00000000 * AKOK * W.CLKOK * CONTROLOK * ID * MSB/LSB * 2CH/4CH OK OK OK In Out Change to B port and push OK button. OK When changing to the next port, a pop-up box like that on the right is displayed. Change the connections and click the OK

45、button. Displays the current port. Please refer to page 25 for charts showing the same detailed result as those up until now. 5.AI8 - IPC1 test This test checks around the AI8 - IPC1. Ports A, B, and C are all checked, so the same procedure is carried out in 5-1 for Port A, in 5-2 for Port B, and in

46、 5-3 for Port C. Detects PLL for valid detection (IC301 of IFC3 sheet). NG sample Please refer to page 25 for NG charts. AI8 28 ERROR MESSAGES If an error occurs in the connection to the DSP1D, or if the unit does not lock to the wordclock signal, one of the following error indications appears. ERRO

47、R MESSAGEDESCRIPTION The AI8 is connected to the OUTPUT connector of the DSP1D/DSP1D-EX. Connect the AI8 to the INPUT connector. A cable is disconnected from the OUTPUT A, B, or C connector on the rear panel, or the connection is made incorrectly. If the connection is proper, replace the cable. The unit does not lock to the wordclock signal. The con