Yamaha i88x Audio Midi Interface Service Manual 电路图.pdf

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1、SY 011724 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. PDF-K8291 M I 04.04 20040325-128000 SERVICE MANUAL AUDIO / MIDI INTERFACE CONTENTS （目次） SPECIFICATIONS . 3 総合仕様. 5 PANEL LAYOUT （）. 7 CIRCUIT BOARD LAYOUT （） . 8 DISASSEMBLY PROCEDURE （分解手順）. 9 LSI PIN DESCRIPTION （LSI

2、端子機能表） . 14 IC BLOCK DIAGRAM （IC図） . 24 CIRCUIT BOARDS （基板図）. 27 SOFTWARE ONLY FOR THE mLAN INSPECTION. 42/46 （mLAN検査専用） INSPECTION （検査） . 50/57 SYSTEM FLOW CHART After turning on the Power. 64/65 （電源立上） PARTS LIST BLOCK DIAGRAM （） WIRING （基板結線図） OVERALL CIRCUIT DIAGRAM （総回路図） i88X RadioFans.CN 收音机

3、爱好者资料库 i88X 2 WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. 印商品、安全維持重要部品。交換場合、安全必指定部品使用下。 WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In ad

4、dition, 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

5、 / 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 encl

6、osure 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 a

7、lready known and under- stood 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 speci- fied.

8、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 constitute authorization, certifica- t

9、ion, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving

10、to improve Yamaha products. Modifications are, therefore, inevi- table 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 expensi

11、ve 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 apply power to the unit

12、. RadioFans.CN 收音机爱好者资料库 i88X 3 SPECIFICATIONS General Specifi cations Input/Output Specifi cations Sampling FrequencyInternal, External Normal Rate Fs 44.1kHz(10%) to 48kHz(+6%)*1 Double Rate Fs 88.2kHz(10%) to 96kHz(+6%) Frequency Response Fs 44.1kHz, 48kHz20Hz to 20kHz0+1/3dB, Input to Master Ou

13、tput L/R (Fs 48kHz, MIC/LINE) Fs 88.2kHz, 96kHz20Hz to 40kHz0+1/3dB, Input to Master Output L/R (Fs 96kHz, MIC/LINE) Total Harmonic DistortionLess than 0.01% 1kHz, Line Input to Master Output L/R (Input Gain = Min, Output Vol = Max) Dynamic Range110dBLine Input to Master Output L/R (1/2ch) Noise lev

14、el100dBu (1/2ch) Crosstalk75dB1kHz AD converter 24bit Linear, 128times over sampling (Fs 44.1,48kHz) / 64time over sampling (Fs 88.2,96kHz) DA converter 24bit Linear, 128times over sampling (Fs 44.1,48kHz) / 64time over sampling (Fs 88.2,96kHz) Interface Functions Compatible mLAN transfer rateS400 (

15、400Mbps) / S200 (200Mbps) mLANAudio I/F 18ch Input / 18ch Output (Fs 44.1kHz, 48kHz) Type: Input (Analog) 8ch, Digital Input 2ch, ADAT Input 8ch 14ch Input / 14ch Output (Fs 88.2kHz, 96kHz) Type: Input (Analog) 8ch, Digital Input 2ch, ADAT Input 4ch MIDI I/F1 Input port / 1 Output port Analog InputC

16、onnector Input level NominalMax. before clipInput Impedance INPUT 1,2 XLR/TRS Phone Combo*2, Balanced, +48V 3V Phantom, Mic/Line/Hi-Z 60dBu to 16dBu (Mic)2dBu 3k 34dBu to +10dBu (Line)+24dBu 56dBu to 12dBu (Hi-Z)+2dBu500k INPUT 3-8 TRS Phone *3, Balanced, Line 20dBu to +10dBu+24dBu10k INSERT IN 1-2

17、TRS Phone *4, UnBalanced 2dBu+12dBu10k Analog OutputConnector Output level NominalMax. before clip Actual Load Impedance (Rated Load Impedance) OUTPUT 1-8 (MASTER OUT L/R) TRS Phone, Balanced*3 +4dBu+18dBu2k (10k) INSERT OUT 1-2 TRS Phone *4, UnBalanced 2dBu+12dBu600 (10k) PHONESTRS Phone, UnBalance

18、d100mW+100mW33 (33) Digital Input/ Output ConnectorFormat Recommended output level Other details ADAT/DIGITAL OPTICAL IN, OUT OPTICAL ADAT*5 Supports DOUBLE (up to 96 kHz). IEC-60958 Consumer use (DIGITAL) DIGITAL STEREO IN, OUT RCA PINIEC-60958 Consumer use 0.5Vpp/75 The IN jack features an interna

19、l sampling rate converter. MIDI IN, OUT A/B DIN 5pinMIDI mLAN 1/2IEEE1394 6pinmLANCompatible with S400 and S200 RadioFans.CN 收音机爱好者资料库 i88X 4 Control *6: Phantom power (+48 V) is not supplied when the TRS phone is used. If the HI-Z/LINE/MIC switch is set to HI-Z, phantom power is not supplied to IN

20、PUT jack 1. Others Input GainGain Knob 1, 2, 3, 4, 5/6, 7/8 Phantom Switch Phantom (+48V) On/Off for Input1,2 channel with LED *6 Gain Select Switch (PAD Switch)Input Ch 1 : Mic/Line/Hi-Z, Input Ch 2 : Mic/Line Peak LEDInput 1, 2 channel Monitor Select Switch (Fs Indicator) Direct Monitoring Channel

21、 Selector : 1/2, 3/4, 5/6, 7/8, Digital In / Fs Indicator (holding down a while) Monitor LED (Fs Indicator) Direct Monitoring Channel Selector : 1/2, 3/4, 5/6, 7/8, Digital In / Fs Indicator : 44.1, 48, 88.2, 96kHz Monitor VolumeDirect Monitoring Volume for selected channel by monitor switch Master

22、VolumeOutput Level of Master Output L/R and Phones Optical Select SwitchDigital / ADAT Normal / ADAT Double Master Clock LEDmLAN / ADAT / Internal mLAN Active LEDFor Information of mLAN s situation Power SwitchStand by/On switch Supplied Accessories Power Adaptor (PA-5D), Owner s Manual set, CD-ROM

23、x 2, mLAN (IEEE1394) cable Power Consumption16W Dimensions480(W) x 372.7(D) x 44(H) Weight3.9kg *1: Signal input from ADAT-compatible device:Normal Rate Fs 44.1KHz(6%) to 48KHz(+6%) Double Rate Fs 88.2KHz(6%) to 96KHz(+6%) *2: Always balanced, regardless of whether a XLR-3-31 or TRS phone is used. (

24、1=GND, 2=HOT, 3=COLD/Tip=HOT, Ring=COLD, Sleeve=GND) *3: Balanced Phone (Tip=HOT, Ring=COLD, Sleeve=GND) *4: INSERT IN Ports 2, 5 and 7 P81 through P84, and P67 TRANSCEIVER TRANSCEIVER DATA SELECTOR D-FF CPU （Port 2,5,7,P81-84,P67入力専用） In the usual case: Pull-Up via 10k ohms In case of CN501 connect

25、ion: Low （通常時:PU10K）（CN501接続時:LOW） INVERTER I i88X OVERALL CIRCUIT DIAGRAM 3/12 (DM 3/5) to DMSUB-CN803 DM003 INVERTER RESET Not installed Not installed Not installed Not installed MONITOR SELECT Fs(HOLD) D-FF (1FS is counted by the timer.) Not installed Not installed Not installed Not installed ()

26、 : Ceramic Capacitor（） OR INVERTER INVERTER RESET AND Voltage Conversion (5V to 3.3V) （5V - 3.3V 変換）（MUTE遅延回路） OR INVERTER INVERTER SRC PHOTO COUPLER DM to JK1-CN102 004 OR INVERTER DIT MULTIPLEXER LINE RECEIVER Voltage Conversion (3.3V to 5V) Voltage Conversion (3.3V to 5V) （3.3V - 5V 変換）（3.3V -

27、5V 変換） INVERTER Voltage Conversion (5V to 3.3V) （5V - 3.3V 変換） OR OR OR D-FF INVERTER ATSC2A DIR2 Voltage Conversion (3.3V to 5V) Voltage Conversion (3.3V to 5V) PA_CLK for OUTPUT PB_CLK for INPUT PB_CLK for OUTPUT （3.3V - 5V 変換）（3.3V - 5V 変換）（PA 出力用 CLK）（PB 入力用CLK）（PB 出力用CLK） Note: See parts li

28、st for details of circuit board component parts. 注：部品詳細御参照。 OR 1SS355(VT332900) DIODE DM:D600-602 1 2 1 : ANODE 2 : CATHODE D-FF MUTE DELAY CIRCUIT i88X ( F) : Metal Film Resistor（金属皮膜抵抗） () : Ceramic Capacitor（） () : Flame Proof Resistor（） I i88X OVERALL CIRCUIT DIAGRAM 4/12 (DM 4/5) i88X i88X 28CC

29、1-8831036 2 3/5 28CC1-8831036 2 4/5 Not installed (F) Loop Filter Not installed Not installed Not installed DM Not connected CLPD PLL REGULATOR +3.3V For CPLD-Writing Use only 1:V in 2:GND 3:V out 4:GND 3 4 2 1 PC2933T(XS516A00) REGULATOR +3.3V Not installed 005 DMSUB (DM006) ( F) : Metal Film Resis

30、tor（金属被膜抵抗） () : Ceramic Capacitor（） () : Mylar Capacitor（) DM: IC701 （CPLD 書込用） RB160L-40(VS597600) DIODE DM:D701 1 2 1 : ANODE 2 : CATHODE I i88X OVERALL CIRCUIT DIAGRAM 6/12 (DMSUB) i88X Not installed Not installed Cable Holder （） Cable Holder （） i88Xi88X MLN2 001 MLAN-NC1 Not installed VOLTAGE D

31、ETECTOR INVERTER INVERTER Not connected REGULATOR +3.3V Not installed Not installed (No Mark) (No Mark) (Rated Working Voltage) : Low Leakage Electrolytic Capacitor : Electrolytic Capacitor (chip) : Polyester Film(=Mylar) Capacitor : Ceramic Capacitor (chip) other than 1608 type : Ceramic Capacitor

32、(chip) 1608 type * The relations between the symbol and the kind of capacitor are as follows. NOTE) NOTATION OF CAPACITOR * As for each resistor other than 1/16W, the wattage is indicated. * The resistors marked 金被 are basically 1/16W metal film resistors (chip). * All the resistors, unless otherwis

33、e specified, are 1/16W chip resistors. NOTE) NOTATION OF RESISTOR 12 PHY (IEEE1394) Not installed Not installed 4 2 1 PC2933T(XS516A00) REGULATOR +3.3V MLN2: IC4 Not installed Not installed EEPROM Not installed MLAN-PH2 PLL Not installed Not installed Not installed Not installed Not installed Front

34、Not installed Not installed 1:V in 2:GND 3:V out 4:GND 3 i88X Note: See parts list for details of circuit board component parts. 注：部品詳細御参照。 (金被) : Metal Film Resistor（金属被膜抵抗） () : Mylar Capacitor（） () : Ceramic Capacitor（） 28CC1-8831036 2 5/5 28CC1-8831036 1 28CC1-8827928 6 1/3 RB160L-40(VS597600) D

35、IODE MLN2:D1 1 2 1 : ANODE 2 : CATHODE I i88X OVERALL CIRCUIT DIAGRAM 5/12 (DM 5/5) I i88X OVERALL CIRCUIT DIAGRAM 7/12 (MLN2 1/3) Not connected CPLD INVERTER Not installed Not installed Not installed RESET Not installed MLN2 002 28CC1-8827928 4 2/3 Not installed AND Not installed Not installed Not

36、installed Not installed Not installed Not installed MLN2 003 TRANSCEIVER Not installed Not installed Not installed TRANSCEIVER TRANSCEIVER TRANSCEIVER LINE DRIVER LINE DRIVER OR Not installed INVERTER OR TRANSCEIVER OR Not installed Not installed Not installed to DMSUB-CN801 Not installed Note: See

37、parts list for details of circuit board component parts. 注：部品詳細御参照。 28CC1-8827928 2 3/3 i88Xi88X I i88X OVERALL CIRCUIT DIAGRAM 9/12 (MLN2 3/3) () : Ceramic Capacitor（） () : Ceramic Capacitor（） I i88X OVERALL CIRCUIT DIAGRAM 8/12 (MLN2 2/3)i88X *RA111 and RA112 are applied since MLN2 circuit board X

38、32290D0. 28CC1-8831037 2 1/3 Separation of Digital and Analog Connect to Land of JK angle to Power Switch to DM-CN900 to DM-CN600 to DM-CN5 to DM-CN7 to DM-CN8 JK1 DIODE S3V20 (VR313500) 1: ANODE 2: CATHODE 2 1 JK1:D100 （分離）（JK結合） MIDI IN IN IN OUT OUT OUT DIGITAL STEREO OPTICAL DIGITAL STEREO COA

39、XIAL DC IN CH1/L CH2/R CH3 CH4 CH5 CH6 CH7 CH8 OUTPUT/ MASTER +4dB(BAL) I i88X OVERALL CIRCUIT DIAGRAM 11/12 (JK2) i88X 28CC1-8831037 1 2/3 JK2 to DM-CN1 to DM-CN2 to DM-CN3 INSERT I/O INPUT (BAL) 1 3 2 4 5 6 7 8 Note: See parts list for details of circuit board component parts. 注：部品詳細御参照。 28CC1-8831037 1 3/3 to DM-CN6to DM-CN4to DM-CN502 Separation of Ground Solid Pattern JK3 （分離） ADAT DOUBLE ADAT NORMAL DIGITAL OPTICAL SELECT MASTER CLOCK INT ADAT mLAN ACTIVE mLAN MASTER PHONES VOLUME i88Xi88X I i88X OVERALL CIRCUIT DIAGRAM 10/12 (JK1) I i88X OVERALL CIRCUIT DIAGRAM 12/12 (JK3)