Yamaha-AO-8-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL PA 011506 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 DESCRIPTION 11 IC BLOCK DIAGRAM 14 CIRCUIT BOARDS 15 INSPECTION 20 TEST PROGRAM 22 ERROR MESSAGES 27 PARTS LIST CIRCU

2、IT DIAGRAM ANALOG OUTPUT BOX AO8-DA8 200004*-250000 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. PDF-K-*K01.03 RadioFans.CN 收音机爱 好者资料库 AO8 2-1 REVISED PAGE LIST SPECIFICATIONS PANEL LAYOUT DIMENSIONS CONNECTOR CIRCUIT DIAGRAM DISASSEMBLY PROCEDURE IC BLOCK DIAGRAM CIRCUIT

3、BOARDS AD, IPC4, DR, PSB, LED2 DC, MB1 IFC3 INSPECTION TEST PROGRAM ERROR MESSAGES ITEM 3-1 3-2 3-3 5 7,9 14 1519 16 17 19 2021 2226 41 PAGE OVERALL ASSEMBLY SIDE PANEL ASSEMBLY MOTHER ASSEMBLY ELECTRICAL PARTS ITEM 2, 3, 4 4, 5 6 712 PAGE RadioFans.CN 收音机爱 好者资料库 AO8 2-2 UNC CIRCUIT DIAGRAM003 MB1 C

4、IRCUIT DIAGRAM002 003 004 005 IFC3 CIRCUIT DIAGRAM002 003 004 005 006 007 IPC2 CIRCUIT DIAGRAM IPC4 CIRCUIT DIAGRAM AOCOM CIRCUIT DIAGRAM 002 003 ITEM 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 PAGE AO8 2-2 WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD

5、. In addition, 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, ELECTRICA

6、L/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 inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosu

7、re 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 personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are alre

8、ady 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 thes

9、e 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, recogn

10、ition 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 improve Y

11、amaha 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 components.

12、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:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING Compon

13、ents having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord IMPORTANT.The wires in this main lead are coloured in accordance with the following code: BLUE

14、: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, proceed as follows: The BLUE wire must be connected to the terminal that is marked with the letter N (or coloured BLACK). The BROW

15、N 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 pin plug. SPECIFICATIONS AO8 3-1 Sampling frequency (external sync) Power supply Power consumption Dimensions (W x H x D) Weight O

16、perating 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 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 INPUT A, B, C

17、 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 LMY4-AD Input Channel 1 4 Slots * The illustration shows the AO8 analog output box. 1234567 UNIT NO. INPUT SELECTOR A B POWER ON/ OFF 8 AN

18、ALOG OUTPUT BOX OUTPUT UNIT ID INPUT SELECTOR A B POWER ON/ OFF ANALOG OUTPUT BOX 75 IN BA INPUT ON OFF OUT WORD CLOCK BA INPUT ON OFF OUT WORD CLOCK 75 IN 1 2 3 5 6 4 1OUTPUT UNIT ID indicator 2INPUT SELECTOR switch 3POWER ON/OFF 4INPUT connectors A and B 5WORD CLOCK IN jack, ON/OFF switch 6WORD CL

19、OCK OUT jack Front Panel Rear Panel AO8 3-2 PANEL LAYOUT 455 466.8 480 430 132 (3U) 141.5 OUTPUT UNIT ID INPUT SELECTOR A B POWER ON/ OFF 12345678 ANALOG OUTPUT BOX 9.5 Unit: mm DIMENSIONS AO8 3-3 AO8 4 CONNECTOR CIRCUIT DIAGRAM IFC3 PSB KEC-92523-2 POWER ON/OFF 3PCN600 14PCN100 5PCN127 * LED2 OUTPU

20、T UNIT ID 1 2 3 4 5 6 7 8 SLOT NO. 4PCN126 4PCN125 6PCN124 4PCN123 6PCN122 4PCN121 20PCN120 30PCN119 CN109 100P UNC CN108 100P CN107 100P CN106 100P CN105 100P CN104 100P CN103 100P CN102 100P CN101 100P 8PCN117 8PCN116 8PCN115 8PCN114 8PCN113 8PCN112 8PCN111 8PCN110 6PCN118 MB1 POWER TRANSFORMER *

21、6PCN104 13PCN605 13PCN606 10PCN607 10PCN608 5P CN106 20PCN102 30PCN101 14PCN103 8PCN402 8PCN403 8PCN404 8PCN405 13PCN601 13PCN602 10PCN603 10PCN604 8PCN407 8PCN408 6PCN105 8PCN406 8P CN401 INPUT A B 10PCN104 10PCN103 13PCN102 13PCN101 10PCN104 10PCN103 13PCN102 13PCN101 3P CN002 5P CN001 14PCN100 4P

22、 CN101 2PCN300 4P CN301 2PCN302 4PCN303 16PCN200 6PCN201 DC 2PCN400 4P CN401 3P CN402 FG AC FAN 3P CN502 2P CN500 DR WORD CLOCK ON OFF 75 IN OUT 5PCN300 IPC4 IPC2 IPC2 AO8 5 Circuit BoardCN No.Pin No. DCCN100 2 3 4 5 6 7 8 9 10 11 12 13 14 DCCN1011 2 3 DCCN200 DCCN201 1 2 3 4 5 6 1 2 3 DCCN3001 2 DC

23、CN3011 2 3 4 DCCN3022 DCCN3031 2 IFC3CN1031 2 3 4 5 6 7 8 9 10 11 12 13 14 1MB14 3 MB14 3 MB15 IFC31 2 MB12 1 MB12 1 MB13 IFC33 4 MB14 IFC35 6 4 MB1 MB1 4 MB14 MB12 MB12 MB12 DR1 2 MB16 6 MB12 1 MB11 5 5 LED11 2 3 4 5 6 7 8 9 10 11 12 13 14 CN122 CN124 CN127 CN104 CN122 CN124 CN127 CN104 CN127 CN104

24、 CN123 CN121 CN125 CN121 CN123 CN125 CN500 CN122 CN126 CN127 MB1 MB1 CN122 CN124 CN100 CN124 Circuit BoardCN No.Pin No. MB11 MB11 MB11 CN121 CN123 CN125 MB1 ACCN7011 4 PSBCN6001 3 KEC-92523-31 1 2 3 4 5 6 7 Register Decoder FLASHRAM CPU WC SEL stopped at the end of the page for any other NG. Main it

25、em 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) FlashOK: 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

26、 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 hexadecimal notation Gives the current version and the latest version Latest Version Auto Test Start ALLCLR 1.AO8-UNC TestOK 2

27、.AO8-IFC3 TestOK 3.AO8-SLOT TestOK 4.AO8-IPC4, LED2 TestOK 5.AO8-IPC2 TestOK xxxxxxxx Input the latest firmware version. When the version is checked, this character string and the version actually written in the firmware are compared. The value entered here is retained in memory. Pressing this butto

28、n starts the automat- ic checks of the checked items. The check item and the check results are displayed. Just one item can be inspected by pressing its button. Version character string input example Only items whose checkboxes are checked are automatically checked. ALL checks all the items. CLEAR r

29、emoves all the checks. * FS Line Check 3-2. AO8-SLOT Clock Line TestOK 3-2. AO8-SLOT Clock Line Test OK OK Fs00000000 64Fs00000000 256Fs00000000 NG example FS Line Check: Now Checking FS Check 256Fs 3-2. AO8-SLOT Clock Line Test 3-2. AO8-SLOT Clock Line Test NGFS Line Check: NGSLOT4 Fs- xx.xxx kHz 6

30、4Fs 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 and the percentage deviation from the ideal state is displayed. The values for 64 Fs and 256 Fs

31、are displayed in such a way that they can be easily grasped. Basically, the same as up till here * Data Bus Test * Voltage Check * Address Bus Test00000000 00000000OK 00000000OK 00000000 00000000+15V 00000000-15V 00000000+5V 00000000-5V +20V * /CON Line Test00000000OK 3-1. AO8-SLOT Initial TestOK 3-

32、1. AO8-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. AO8-SLOT Initial Test 3-1. AO8-SLOT Initial Test NGAddress Bus Test: NGSLOT6 111 1111111- NGData Bus Test: NGSLOT4 NGSLOT6 11111111 11111111 11111111 11111

33、111 NGVoltage Check: NGSLOT4 +20V= +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 00010100NG 00010000 00010000+15V 00000000-15V 00000000+5V 00000100-5V +20V * /CON Line Test00010100

34、NG NG 3-1. AO8 - 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 order from the left. A mark is made for each check to show the progress of the ch

35、ecks. (Blank: Not yet checked; 0: Normal; 1: Abnormal; N: No response) Displays which pin number is NG. The main part of the address bus is displayed. (1: NG; 0: OK) 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, bu

36、t the check order 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. Basically, the same as up till here 3-2. AO8 - Slot Clock Line Test This test checks around the slot clock. * Digital Signal

37、line Test 3-3. AO8-SLOT Data Line TestOK 3-3. AO8-SLOT Data Line Test OK OK SI00000000 Digital Signal Line Test: 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. 3-3. AO8 - Slot Data Line Test This

38、 test checks around the serial communications. AO8 25 NG sample Please refer to page 24 for NG charts. * RQOK 5-1. AO8-IPC2 PortA TestOK 5-1. AO8-IPC2 PortA Test SI:OK RQ:OK AK:OK W.CLK:OK CONTROL:OK MSB/LSB:OK 2CH/4CH:OK ID:OK * SIOK00000000 * AKOK * W.CLKOK * CONTROLOK * IDOK * MSB/LSBOK * 2CH/4CH

39、OK In Out Change to B port and push OK Button. OK Next, when changing the ports the following pop-up menu will be displayed. Change the connections and set all MSB/LSB, 2CH/4CH lines to off. After the preparations have been completed, click OK. Change MSB/LSB line to low level. OK In the MSB/LSB, 2C

40、H/4CH items, the following pop-up menu will be displayed. Set the switches on the ID conversion jig so that the corresponding signal will become low and click the OK button. AO8 26 ONOFF For the 75 item, the pop-up box is displayed below and the inspector judges visually on the oscilloscope. Please

41、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. The inspector judges the jitter. Please check Jitter (48kHz). NGOK Please ch

42、eck 7segment LED. NGOK When moving from the jitter measurement to the In/Out check, the the pop-up box is displayed to ask the user to check the connections. Connect AO8 BNC Out to AI8 BNC In. OK For the LED lighting order, see *1. If the LEDs light this way, they are OK. (*1) 7-segment LED lighting

43、 order 0.0. 1.1 .2.2. 9.9. * Input Selector SW 4. AO8-IPC4, LED2 TestOK 4. AO8-IPC4, LED2 Test OK OK * W.CLK 75ohm SWOK * 7segments LEDOK * W.CLKOK In 48 kHz + 6% In 44.1kHz - 10% Jitter 48 kHz Jitter 44.1kHz DIR2 In/Out Input Selector SW: OKWordClock 75ohm SW: OK7segments LED: OKW.CLK: 7segment LED

44、= xx 4.AO8 - IPC4, LED2 test This test checks around the AO8 - IPC4 and LED2. When other checks are necessary, the pop-up dialog box is displayed to ask the inspector to select OK or NG and the system stands by until the inspector makes a selection. The current status is displayed in real time and t

45、he inspector looks at the behavior of the system and judges it OK/NG. Detects PLL for valid detection (IC301 of IFC3 sheet). Same as up till here 5.AO8 - IPC2 test This test checks around the AO8 - IPC2. Ports A and B are both checked, so the same procedure is carried out in 5-1 for Port A and in 5-

46、2 for Port B. Before starting these items, refer to page 23 and set all settings for MSB/LSB,2CH/4CH lines to off. NG sample Please refer to page 24 for NG charts. ERROR MESSAGES AO8 27 If an error occurs in the connection to the DSP1D, or if the unit does not lock to the wordclock signal, one of th

47、e following error indications appears. ERROR MESSAGEDESCRIPTION The AO8 is connected to the INPUT connector of the DSP1D/DSP1D-EX. Connect the AO8 to the OUTPUT connector. A cable is disconnected from the INPUT A, B, or C connector on the rear panel, or the connection is made incorrectly. If the con

48、nection is proper, replace the cable. The unit does not lock to the wordclock signal. The control signal is not being received correctly. (two dots and the ID number of the OUTPUT connector on the DSP1D/DSP1D-EX) Illuminating dots means that the AO8 is con-nected in Mirror mode from the DSP1D/DSP1D-

49、EX. If “.x .” lights up continuously during Mirror mode operation, the INPUT SELECTOR switch setting matches the setting controlled from the CS1D and the system is operating normally. If the control signal from the CS1D has changed the setting during Mirror mode operation and it does not match the INPUT SELECTOR switch setting any more, this indicator changes in the following order. “” means that the control signal from the CS1D has changed the setting to “A” “” means that the control signal from the CS1D has changed the setting to “B.”