Yamaha-Audiogram6-ai-sm(1) 维修电路原理图.pdf

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1、SERVICE MANUALHAMAMATSU, JAPANCopyright (c) Yamaha Corporation. All rights reserved. PDF & 08.07SPECIFICATIONS（総合仕様） .3PANEL LAYOUT（） .4DIMENSIONAL DIAGRAM（寸法図） .5CIRCUIT BOARD LAYOUT（） .5DISASSEMBLY PROCEDURE（分解手順） .6LSI PIN DESCRIPTION（LSI 端子機能表） .9IC BLOCK DIAGRAM（IC 図） .10CIRCUIT BOARDS（基板図） .11

2、INSPECTIONS（検査） .14/19RECORDING USING THE CUBASE AI 4（Cubase AI 4 使用録音） .24/29RECORDING USING THE TWE（TWE 使用録音） .34/37PARTS LISTBLOCK DIAGRAM（）CIRCUIT DIAGRAM（回路図） CONTENTS（目次）USB AUDIO INTERFACESY01191920080801 RadioFans.CN 收音机爱 好者资料库AUDIOGRAM62 WARNINGComponents having special characteristics are

3、marked and must be replaced with parts having specifi cation equal to those originally installed.IMPORTANT NOTICEThis 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

4、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 may result in personal injury, destruction of expensive components and failure of the pr

5、oduct 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.IMPORTANT : This presentation or sale of this manual to any individual or firm does not constit

6、ute 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 unit(s) indicated on the cover. The research engineering, and service departments of Yamaha

7、 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 appear to exist, please contact the distributors Service Division.WARNING : Static discha

8、rges 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 : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you

9、 apply power to the unit.WARNING: This product contains chemicals known to the State of California to cause cancer, 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 cont

10、act 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 product, wash your hands before handling food. 印部品、安全維持重要部品。交換場合、安全必指定部品使用。MIC/INST 端子（XLR ）配列、以下。（I

11、EC60268 規格基）1: （GND） 、2: （） 、3: （） ）321MIC/INST jacks (XLR-type) are wired as follows (IEC60268 standard): pin 1: ground, pin 2: hot (+), and pin 3: cold (-).RadioFans.CN 收音机爱 好者资料库3AUDIOGRAM6 SPECIFICATIONS（総合仕様）JacksMIC/INST Input Jackx 2 Combo jacks (Mic/HiZ)LINE Input Jacks (L, R)x 2 Phone jacks

12、PHONES Jackx 1 Phone jackSTEREO OUT Jacks (L, R)x 1 Phone jacksUSB Connectorx 1 USB 1.1 44.1/48 kHz, 16 bitControlsMIC/INST Switchx 2 MIC: for microphones INST (Hi-Z): for guitars, etc.GAIN Controlx 4 Gain for CH 1-5/6COMP Controlx 2 Compressor for CH 1, 2MONO/STEREO Switchx 1 MONO: CH 1, 2 signals

13、function as independent mono channels. STEREO: CH 1, 2 signals function as a stereo pair.LEVEL Controlx 4 Adjust the level of CH 1-5/6PHANTOM +48V Switchx 1 48 V, only for CH1DAW Controlx 1 Adjusts the DAW playback signalMASTER LEVEL Controlx 1 Adjusts the overall signalIndicatorsLevel Indicatorsx 1

14、 2 points (green, red)PEAK Indicatorx 4 RedPhantom Powerx 1 RedPowerx 1 GreenPower SupplyUSB bus-poweredDimensions (W x H x D)170 x 59 x 192 mmNet Weight760 gIncluded AccessoriesCubase AI 4 DVD-ROM USB cable Owners Manual General Specifi cationsAUDIOGRAM64 PANEL LAYOUT（）q MIC/INST Input Jackw LINE I

15、nput Jacks (L (MONO)/R)e STEREO OUT Jacksr PHONES Jackt MIC/INST Switchy GAIN Controlu COMP Controli MONO/STEREO Switcho PEAK Indicators!0 LEVEL Controls!1 POWER Indicator!2 PHANTOM +48V (CH1) Switch/Indicator (only for channel 1)!3 Level Indicators!4 DAW Control!5 MASTER LEVEL Control!6 USB Connect

16、or?q MIC/INST 入力端子w LINE 入力端子 (L (MONO) /R) e STEREO OUT 出力端子r PHONES 端子t MIC/INST 切替y GAIN u COMP i MONO/STEREO 切替o PEAK !0 LEVEL !1 POWER !2 PHANTOM +48V (CH1) / ( 1 ) !3 !4 DAW !5 MASTER LEVEL !6 USB 端子5AUDIOGRAM6 CIRCUIT BOARD LAYOUT（）MAIN6PSUSBTOP COVER ASSEMBLY（Ass y） DIMENSIONAL DIAGRAM（寸法図）5

17、651W: 170D: 1923H: 5938Unit: mmAUDIOGRAM66 DISASSEMBLY PROCEDURE（分解手順）1. Bottom Cover Assembly (Time required: About 1 minute)1-1 Remove the fi ve (5) screws marked 110. The bottom cover assembly can then be removed. (Fig. 1)2. PSUSB & MAIN6 Circuit Boards (Time required: About 7 minutes each)2-1 Pu

18、ll out the fi ve (5) level knobs marked 130 from the control panel side. (Fig. 2)2-2 Remove the bottom cover assembly. (See procedure 1.)2-3 Remove the four (4) screws marked 80 and two (2) screws marked 90. (Fig. 3)2-4 Unhook the MAIN6 circuit board from the seven (7) hooks marked A. The shield mai

19、n and the MAIN6 cir-cuit board on which the PS-USB assembly is installed can then be removed. (Fig. 3, Photo 1)2-5 Remove the two (2) screws marked 70. The PS-USB assembly with the cover PS-USB can then be removed from the shield main. (Fig. 4)2-6 PSUSB Circuit Board2-6-1 Unsolder the four (4) hooks

20、 marked B from the PSUSB circuit board and turn the hooks until they are in the same direction as the notches on the circuit board to separate the PSUSB circuit board and shield PS-USB. (Photo 2)* To remove the cover PS-USB on the shield PS-USB, detach the two adhesive tapes carefully. (Fig. 5)110:

21、BIND HEAD B-TIGHT SCREW（B BIND） 3.0X8 MFZN2W3 (WE774300)Fig. 1（図 1）110 BOTTOM COVER ASSEMBLY（Ass y）130 x5Fig. 2（図 2）1. Assy（所要時間：約 1 分）1-1 110 5 本外、 Assy 外。 （図 1）2. PSUSB 、MAIN6 （所要時間：各約 7 分）2-1 面 130 LEVEL 5 個抜。 （図 2）2-2 Assy 外。 （1 項参照）2-3 804本902本外。（図3）2-4 MAIN6 A （7 箇所） 外、 PS-USB Assy 載 MAIN6外。 （

22、図 3、写真 1）2-5 70 2 本外、 PS-USB 共 PS-USB Assy 外。 （図 4）2-6 PSUSB 2-6-1 PSUSB 半田付 B （4 箇所） 半田取除、 基板切同向、PSUSB PS-USB 分離。 （写真 2） PS-USB 付PS-USB 外場合、両面貼付 2 箇所剥。丁寧剥。 （図 5）Precautions（注意事項） During assembly, pay attention that connectors, cables or the like are not pinched by circuit boards, frames, etc. 組立、基板

23、類注意。7AUDIOGRAM680: BIND HEAD B-TIGHT SCREW（B BIND） 3.0X8 MFZN2W3 (WE774300)90: PW HEAD TAPPING SCREW-B（B PWH） 3.0X8 MFZN2W3 (WF00260R)Fig. 3（図 3）70: BIND HEAD B-TIGHT SCREW（B BIND） 3.0X8 MFZN2W3 (WE774300)Fig. 4（図 4）9080 SHIELD MAIN（）MAIN6 PS-USB ASSEMBLY（PS-USB Ass y）COVER PS-USB（PS-USB） TOP COVER

24、ASSEMBLY（Ass y）70SHIELD MAIN（）MAIN6 PS-USB ASSEMBLY（PS-USB Ass y）COVER PS-USB（PS-USB）Photo 1（写真 1）SHIELD PS-USB（PS-USB） COVER PS-USB（PS-USB） Adhesive tape（両面）Fig. 5（図 5）Photo 2（写真 2）MAIN6 Hooks (Soldering) （ （半田付） ）BB Hooks (Soldering) （ （半田付） ）PSUSBSHIELD PS-USB（ PS-USB）Hook（）AAAAUDIOGRAM682-7 MAIN

25、6 Circuit Board2-7-1 Remove the seven (7) hexagonal nuts marked C and four (4) screws marked 40. The shield main can then be separated from the MAIN6 circuit board. (Fig. 6)2-7-2 Pull out the seven (7) volume knobs marked 120 and four (4) push buttons marked 140 from the MAIN6 circuit board. (Fig. 6

26、)* The volume knobs and push buttons are not compo-nents of the MAIN6 circuit board.When replacing the MAIN6 circuit board, remove the volume knobs and push buttons and install them on the new MAIN6 circuit board.40: BIND HEAD B-TIGHT SCREW （B BIND） 3.0X8 MFZN2W3 (WE774300)Fig. 6 ( 図 6)40 x4 SHIELD

27、MAIN（）MAIN6Cx7120 x7140140 x21402-7 MAIN6 2-7-1 C 六角 7 個 40 4 本外、MAIN6 分離。 （図 6）2-7-2 MAIN6 上面、120 VR （小）7個140HPF4個外。 （図6） VR （小） HPF MAIN6 構成部品。MAIN6 交換際、VR （小） HPF 取外新 MAIN6 取付。9AUDIOGRAM6 LSI PIN DESCRIPTION（LSI 端子機能表）PINNO.I/OFUNCTIONNAMEPINNO.I/ONAMEPCM2904DBR (X9570A00)STEREO AUDIO CODEC WITH

28、USB INTERFACEDAC analog output for R-channnelDAC analog output for L-channnelInternal analog power supply for PLLAnalog ground for PLLInternal analog power supply for PLLCrystal oscillator outputCrystal oscillator inputAnalog ground for oscillatorInternal analog power supply for oscillatorTest pin,

29、must be connected to GNDTest pin, must be left openDigital groundInternal digital power supplySuspend flag, active low (Low: suspend, Hihg: operational)FUNCTIONOO-OI-IO-OVOUTRVOUTLVCCP1IAGNDPVCCP2IXTOXTIAGNDXVCCXITEST0TEST1DGNDVDDISSPND1516171819202122232425262728USB differential input/output plusUS

30、B differential input/output minusConnect to USB power (VBUS)Digital ground for USB transceiverHID key state input (mute), active highHID key state input (volume up), active highHID key state input (volume down), active highMust be set to highInternal analog power supply for codecAnalog ground for co

31、decADC analog input for L-channnelADC analog input for R-channnelCommon for ADC/DAC (VCCCI/2)I/OI/O-IIIII-II-D+D-VBUSDGNDUHID0HID1HID2SEL0SEL1VCCCIAGNDCVINLVINRVCOM1234567891011121314PSUSB: IC102AUDIOGRAM610 IC BLOCK DIAGRAM（IC 図）BA10339F-E2 (X6266A0R)MAIN6: IC802Ground Sense Comparator1234567OUT2OU

32、T1Vcc-IN1+IN1-IN2+IN2141312111098OUT3OUT4VEE+IN4-IN4+IN3-IN3+-+-+-+-11.5AMaximumON duty 9.1OSC BLOCK4328 5 6 7 V+EsGNDPWMLogicRSQVref1.25V2%CDCTCsSIIN+Vth=300mVIpk SensePWM COMPERR. AMP16012348765CsCTGNDCDSIV+IN+EsNJM2374AM-TE1 (X9482A00)PSUSB: IC401, IC501, IC601PWM DC/DC ConverterNJM072BM-E-TE1 (X

33、4543A01)MAIN6: IC101Dual Operational Amplifier12348765A Output+VA +InputV-V+B OutputB -InputB +InputA -Input+-+-NJM2068MD-TE2 (X3505A00)MAIN6: IC301, IC501PSUSB: IC201, IC202Dual Operational Amplifier1234-V8765Output A+VNon-InvertingInput A-DC Voltage Supply+DC VoltageSupplyOutput BInvertingInput BN

34、on-InvertingInput BInvertingInput A+-+-NJM4580L (XF195A00)MAIN6: IC703Dual Operational Amplifier1A2345678OUTA-INA+INA+INB-INBOUTB-V+V-+B-+BA4560RF-E2 (X6897A00)MAIN6: IC102104, IC201, IC302, IC502, IC701, IC702, IC801Dual Operational Amplifier1234-V8765Output 1+V+Input 1VEEVCCOutput 2-Input 2+Input

35、2-Input 1+-+-12348765GNDEN1EN2/OC1OUT1OUT2/OC2INBD2056AFJ-E2 (X9691A00)PSUSB: IC301USB High Side SwitchGateLogic1TSD1TSD2Chargepump1OCD1OCD2SW1SW2UVLO83241765/OC1EN1EN2GNDIN/OC2OUT1OUT2Chargepump2GateLogic211AUDIOGRAM6USBto MAIN6-CN901 PSUSB Circuit BoardComponent side（部品側）Pattern side（側）PSUSB: 2NA-

36、WW90300-1 1 CIRCUIT BOARDS（基板図）MAIN6 Circuit Board (X9389D0) .12/13PSUSB Circuit Board (X9388C0) . 11Note: See parts list for details of circuit board component parts.注 : 部品詳細参照。AUDIOGRAM612 MAIN6 Circuit Boardto PSUSB-CN702CH 1MIC/INSTMIC/INSTGAIN1COMP 1LEVEL 1LEVEL 2LEVEL 3/4LEVEL 5/6MASTERDAWSIGN

37、ALPEAKPHANTOMPOWERPHANTOMPHANTOMLRLRPEAK1PEAK2PEAK3/4PEAK5/6COMP 2MONO/STEREOGAIN2GAIN3/4GAIN5/6LCH 2CH 3LCH 4RCH 5LSTEREOOUT RSTEREOOUT LSTEREOOUT RSTEREOOUT LPHONESPHONESCH 6RRComponent side（部品側）MAIN6: 2NA-WM90330-1 213AUDIOGRAM6MAIN6: 2NA-WM90330-1 2 MAIN6 Circuit BoardX9389C0R902Pattern side（側）A

38、UDIOGRAM6141. Measurement condition1-1 Environment Temperature (5C 40C) Humidity (30% 90%)1-2 Power supply Power is supplied from a personal computer. (Powered through USB bus)2. Electric characteristics2-0 0 dBu = 0.775 Vrms2-1 Preparation Load resistor of each output terminal is as follows: PHONES

39、 (L, R) : 40 (3 W or more) Others : 10k 2-2 Unless otherwise specifi ed, the operation elements shall be set as follows, CH INPUT (CH1, CH2) GAIN control : Maximum COMP control : Minimum CH level control : Maximum MIC/INST switch : OFF (MIC) MONO/STEREO switch : OFF (MONO) ST CH INPUT (CH3/4, CH5/6)

40、 GAIN control : Maximum CH level control : Maximum MASTER DAW level control : Minimum MASTER level control : Maximum Others PHANTOM switch : OFF2-3 Use 1 kHz sine wave for input signal unless otherwise specifi ed.2-4 Signal source impedance should be 150 ohms.2-5 Power indicator Check that the POWER

41、 LED lights when the personal computer is connected. INSPECTIONSGAIN controlCOMP controlCH level controlDAW level controlMASTER level controlMONO/STEREOswitchMIC/INST switchCH1CH2CH3/4CH5/6PHANTOM switch15AUDIOGRAM62-6 Gain Check that the output level of each output terminal is within the range show

42、n in the Table 2-6.1 and Table 2-6.2. * Check that the difference in the level between channels is 2.0 dB or less. Table 2-6.1 CH INPUT (CH1, CH2) dBuINPUTInputlevelGAINcontrolSTEREO OUT LSTEREO OUT RqXLR1-82.0Maximum-2.0 2.0w2-38.0Minimum-2.0 2.0-2.0 2.0qPHONE1 (L)-82.0Maximum-2.0 2.0 *1w2 (R)-2.0

43、2.0 *1ePHONE(UNBAL)1-66.0Maximum-2.0 2.0 *2r2-22.0Minimum-2.0 2.0 *2*1 Set the MONO/STEREO switch to ON (STEREO).*2 Set the MIC/INST switch to ON (INST). Table 2-6.2 ST CH INPUT (CH3/4, CH5/6) dBuINPUTInputlevelGAINcontrolSTEREO OUT LSTEREO OUT RPHONES LPHONES RtPHONE3 L/MONO5 L/MONO-56.0Maximum-2.0

44、 2.0-14.8 2.0y3 L/MONO5 L/MONO-12.0Minimum-2.0 2.0-2.0 2.0-14.8 2.0-14.8 2.0u4 R, 6 R-56.0Maximum-2.0 2.0-14.8 2.02-7 Frequency characteristics In the signal path of q to u in the Table 2-6.1 and Table 2-6.2, check that the output level of each output terminal is within the range of +1.0/-3.0 dB com

45、pared with that of 1 kHz when the signal frequency is set to 20 Hz and 20 kHz. (GAIN control: Minimum) * Check that the frequency characteristics is within the range of +1.0/-4.5 dB when the signal frequency is set to 20 Hz and 20 kHz and the GAIN control is at maximum. * In the signal path of y, ch

46、eck only the STEREO OUT L, R. 2-8 Crosstalk Input signal from the CH1 (L) and check that the leakage level to the STEREO OUT R is -56.0 dBu or less when the output level of the STEREO OUT L is +14.0 dBu. Input signal from the CH2 (R) and check that the leakage level to the STEREO OUT L is -56.0 dBu

47、or less when the output level of the STEREO OUT R is +14.0 dBu. * Set the MONO/STEREO switch to ON (STEREO). * Set the CH level controls of the channels which are not measured to minimum.2-9 CHANNEL PEAK indicator Check that the CHANNEL PEAK LED lights up when a signal within the range shown in the

48、Table 2-9.1 is fed to the input. Table 2-9.1 dBuINPUTInput level12-43.0 2.03 L/MONO5 L/MONO-17.0 2.02-10 MASTER PEAK/SIGNAL indicator Check that the MASTER PEAK/SIGNAL LED lights up when a signal within the range shown in the Table 2-10.1 is fed to the input. Table 2-10.1 dBuINPUTInput levelPEAKSIGN

49、AL1-60.0 2.0-80.0 2.0AUDIOGRAM6162-11 Distortion In the signal path of w, r and y in the Table 2-6.1 and Table 2-6.2, check that the distortion (T.H.D.) is 0.1% or less when the output level of the STEREO OUT L, R is +8.0 dBu. * Change the input signal frequency to “20 Hz”, “1 kHz” and “20 kHz” and

50、measure distortion (T.H.D.). * Set the CH level controls of the channels which are not measured to minimum. * In the signal path of y, check only the STEREO OUT L, R.2-12 Maximum output Input signal to the CH1 and check that the distortion (T.H.D.) is 1.0 % or less when the output signal at the STER