Yamaha-SB168ES-sb-sm(1) 维修电路原理图.pdf

SERVICE MANUALHAMAMATSU, JAPANSERVICE MANUAL200901- PA011934Copyright (c) Yamaha Corporation. All rights reserved. PDF & 09.01SPECIFICATIONS（総合仕様） . 4PANEL LAYOUT（） . 6DIMENSIONS（寸法図） . 7CIRCUIT BOARD LAYOUT（） . 8DISASSEMBLY PROCEDURE（分解手順） .10LSI PIN DESCRIPTION（LSI 端子機能表） .19IC BLOCK DIAGRAM（IC 図） .27CIRCUIT BOARDS（基板図） . 30TEST PROGRAM（） . 46/60INSPECTIONS（検査） . 74/76HOW TO BACKUP SB168-ES DATA（本体方法） . 78/79FIRMWARE UPDATE（） . 80/85ERROR MESSAGES（） . 90/91WARNING MESSAGES（） . 92PARTS LISTBLOCK DIAGRAM（）WIRING（基板結線図）CIRCUIT DIAGRAM（回路図） CONTENTS（目次）RadioFans.CN 收音机爱 好者资料库SB168-ES2IMPORTANT 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 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 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.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 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 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. 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: 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 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 product, wash your hands before handling food.LITHIUM BATTERY HANDLINGThis product uses a lithium battery for memory back-up.WARNING : Lithium batteries are dangerous because they can be exploded by improper handling. Observe the following precautions when handling or replacing lithium batteries. Leave lithium battery replacement to qualifi ed 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 battery 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 fi re.ADVARSEL! 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 apparattillverkaren.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 offi cial 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。RadioFans.CN 收音机爱 好者资料库3SB168-ES WARNINGComponents having special characteristics are marked and must be replaced with parts having specifi cation equal to thoseoriginally installed.IMPORTANT NOTICE FOR THE UNITED KINGDOMConnecting the Plug and CordWARNING: THIS APPARATUS MUST BE EARTHEDIMPORTANT. The wires in this mains lead are coloured in accordance with the following code: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVEAs the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug proceed as follows:The wire which is coloured GREEN-and-YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or colored GREEN or GREEN-and-YELLOW.The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. This applies only to products distributed by Yamaha Music U.K. Ltd. (3 wires) 印部品、安全維持重要部品。交換場合、安全必指定部品使用。SB168-ES4 SPECIFICATIONS（総合仕様）General Specification（一般仕様）Input/Output Characteristics（入出力特性）Analog Input Characteristics*1. XLR-3-31 type connectors are balanced. (1=GND, 2=HOT, 3=COLD)*In these specifications, when dBu represents a specific voltage, 0 dBu is referenced to 0.775 Vrms.*AD converters are 24-bit linear, 128-times oversampling.Analog Output Characteristics*1. XLR-3-32 type connectors are balanced. (1=GND, 2=HOT, 3=COLD)*In these specifications, when dBu represents a specific voltage, 0 dBu is referenced to 0.775 Vrms.*DA converters are 24-bit, 128-times oversampling.Digital Input/Output Characteristics*1. Use a RJ-45 connector compliant with Neutrik EtherCon*Use a CAT5e STP (Shielded Twisted Pair) cable compliant with EtherSound.*Use electrically conductive tape to securely connect the metal part of the connector with the shielded part of the cable in order to preventelectromagnetic interference.*An EtherSound certified cable is recommended. Maximum length available depends on each cable specification.Control I/O Characteristics*A CAT5e STP (Shielded Twisted Pair) cable is recommended. Maximum length is 100 m.Power Requirements65 WDimensions480 x 350 x 132 mm (W x D x H)NetWeight8 kgTemperature RangeOperation free-air : 0 C to +40 CStorage : -20 C to +60 CAC Cable Length250 cmAccessoriesOwners Manual, AC CableInputTerminalsGAINActual Load ImpedanceFor UseWith NominalInput LevelConnectorNominalMax. before clipINPUT 116-62 dB3 k50600 Mics & 600 Lines-62 dBu (0.616 mV)-42 dBu (6.16 mV)XLR-3-31type(Balanced)*1+30 dBu (24.5 V)+10 dBu (2.45 V)+10 dBOutputTerminalsActual SourceImpedanceFor UseWithNominalMax. Output LevelSelect SWOutput LevelConnectorNominalMax. before clipOUTPUT 1875 600 Lines+24 dB (default)+4 dBu (1.23 V)+24 dBu (12.3 V)XLR-3-32type(Balanced)*1+18 dB-2 dBu (616 mV)+18 dBu (6.16 V)TerminalFormatData LengthLevelAudioConnectorEtherSoundINEtherSound24bit100 Base-TX8 ch Input/16 ch OutputRJ-45*1OUTTerminalFormatLevelConnectorNETWORKIEE802.310 Base-T/100 Base-TXRJ-455SB168-ESElectrical Characteristics（電気的特性）Output impedance of single generator: 150 Measured with another SB168-ES through EtherSoundFrequency ResponseFs= 44.1 kHz or 48 kHz20 Hz20 kHz, reference to the nominal output level 1 kHzGain ErrorFs= 44.1 kHz, 48 kHz 1 kHzTotal Harmonic DistortionFs= 44.1 kHz or 48 kHz* Total Harmonic Distortion is measured with a 18 dB/octave filter 80 kHz.Hum & NoiseFs= 44.1 kHz or 48 kHz, EIN= Equivalent Input Noise* Hum & Noise are measured with a 6 dB/octave filter 12.7 kHz; equivalent to a 20 kHz filter with infinite dB/octave attenuation.Dynamic RangeFs= 44.1 kHz or 48 kHz* Dynamic Range is measured with a 6 dB/octave filter 12.7 kHz; equivalent to a 20 kHz filter with infinite dB/octave attenuation.Crosstalk 1 kHzFs= 44.1 kHz or 48 kHzPhantomVoltageSampling FrequencyInputOutputRLConditionsMin.Typ.Max.UnitINPUT 116OUTPUT 18600 GAIN: +10dB-1.500.5dBInputOutputRLConditionsMin.Typ.Max.UnitINPUT 116OUTPUT 18600 Input level: -62 dBu, GAIN: -62dB Output level +4.0 dBu (Typ.)-202dBInput level: +10 dBu, GAIN: +10dB Output level +4.0 dBu (Typ.)-202InputOutputRLConditionsMin.Typ.Max.UnitINPUT 116OUTPUT 18600 0.1+4 dBu20 Hz 20 kHz, GAIN: -62dB%0.05+4 dBu20 Hz 20 kHz, GAIN: -10dBInputOutputRLConditionsMin.Typ.Max.UnitINPUT 116OUTPUT 18600 Rs=150 , GAIN: -62 dB-128EINdBu-62Rs=150 , GAIN: -10 dB-80-84InputOutputRLConditionsMin.Typ.Max.UnitINPUT 116OUTPUT 18600 dB108GAIN: +10 dBFrom/ToTo/FromConditionsMin.Typ.Max.UnitINPUT NINPUT (N-1) or (N+1)INPUT 116, adjacent inputs,GAIN: +10dB-80dB-80OUTPUT 18, input to outputOUTPUT (N-1) or (N+1)OUTPUT NOutputConditionsMin.Typ.Max.UnitV504846hot & cold: No loadINPUT 116ParameterConditionsMin.Typ.Max.UnitkHz49.2043.00Frequency RangeExternal ClockInternal ClockFrequency48kHzAccuracy50ppmSB168-ES6 PANEL LAYOUT（）q INPUT 116 Connectorsw +48V Indicatorse SIG Indicatorsr PEAK Indicatorst EtherSound IN/OUT Connectorsy IN/OUT TX/RX Indicatorsu DIP Switches 18i +48V MASTER Switcho Power Indicator!0 POWER Switch!1 OUTPUT 18 Connectors? ? ? Front Panel（）q INPUT()1 16 端子w +48V e SIG() r PEAK() t EtherSound IN/OUT 端子y IN/OUT TX/RX u 1 8i +48V MASTER (+48V ) o 電源 !0 POWER !1 OUTPUT () 1 8 端子?q Earth Screww AC IN Sockete NETWORK Connectorr FAN Switchq 用q AC IN 端子q NETWORK 端子q FAN Rear Panel（）7SB168-ES DIMENSIONS（寸法図）480350132359.75.710142(4)Unit（単位）: mmSB168-ES8 CIRCUIT BOARD LAYOUT（）REAR PANEL（印刷品）FRONT PANEL（）DMDCFRONT PANEL（）(ch 1-8)(ch 9-16)PSSWDAHAAD2LD2LD1HAAD2ES Front View（前面見図） Top View （上面見図上段 ）9SB168-ESREAR PANEL（印刷品）FRONT PANEL（）ESLD1HAAD2(CH1-8)PSSWREAR PANEL（印刷品）FRONT PANEL（）LD2HAAD2DA(CH9-16)POWER SUPPLY UNIT（電源） Top View （上面見図中段 ） Top View （上面見図下段 ）SB168-ES10Fig. 1 （図 1）1160: BIND HEAD SCREW 4X8 （小） 4.0X8 MFZN2B3 IT (WE99710R)1160RACK ANGLE（）RACK ANGLE（）1160 DISASSEMBLY PROCEDURE（分解手順）1. Top Cover (Time required: About 4 minutes)1-1 Remove the eight (8) screws marked 1160. The right and left rack angle can then be removed. (Fig. 1)1-2 Remove the eighteen (18) screws marked 1110. The top cover can then be removed. (Fig. 2, Fig. 3)1. （所要時間：約 4 分）1-1 1160 8 本外、左右外。 （図 1）1-2 1110 18 本外、外。 （図 2、図 3）Photo 1（写真 1）Precautions（注意事項）* Notes on Flat Cable Contacts are visible from the back. Pay attention not to insert and install the cable to the connector inversely. (Photo 1)Front Side（表面）Back Side（裏面） 注意 接点裏面透見。表裏逆差込注意取付。 （写真 1）11SB168-ES111011101110TOP COVER（）Fig. 2 （図 2）1110: BIND HEAD TAPPING SCREW-S （）3.0X6 MFZN2B3 (WE87780R)1110111011101110TOP COVER（）1110 Back viewFig. 3 （図 3）1110: BIND HEAD TAPPING SCREW-S （）3.0X6 MFZN2B3 (WE87780R)SB168-ES12 Top view Back view980970640910910DMDC980 AC INLET ASSEMBLY（Ass y）DM LITHIUM BATTERY（電池）Battery VN103500VN103600(Battery holder for VN103500)Notice for back-up battery removalPush the battery as shown in figure,then the battery will pop up.Druk de batterij naar beneden zoalsaangeven in de tekening de batterijspringt dan naar voren.BatteryBattery holder AC INLET ASSEMBLY（Ass y）650Fig. 4 （図 4）640: BIND HEAD B-TIGHT SCREW （） 3.0X8 MFZN2B3 (WE774400)650: BIND HEAD TAPPING SCREW-S （）4.0X8 MFZN2B3 (WE99480R)910: BIND HEAD TAPPING SCREW-S （）3.0X6 MFZN2B3 (WE87780R)970: BIND HEAD TAPPING SCREW-S （）3.0X6 MFZN2B3 (WE87780R)980: BIND HEAD TAPPING SCREW-S （）3.0X6 MFZN2B3 (WE87780R)2. DM Circuit Board(Time required: About 6 minutes)2-1 Remove the top cover. (See procedure 1.)2-2 Remove the two (2) screws marked 970 and six (6) screws marked 980. The DM circuit board can then be removed. (Fig. 4)2. DM （所要時間：約 6 分）2-1 外。 （1 項参照）2-2 970 2 本 980 6 本外、DM 外。 （図 4）13SB168-ES3. Replacing the Lithium Battery(Time required: About 6 minutes)3-1 Remove the top cover. (See procedure 1.)3-2 Replace the lithium battery on the DM circuit board. (Fig. 4)* The lithium battery is not part of the DM circuit board. When replacing the DM circuit board, remove the lithium battery from the circuit board and install it on the new circuit board. (Fig. 4)* Refer to the section “HOW TO BACKUP SB168-ES DATA” before replacing the lithium battery. (See page 78)4. DC Circuit Board(Time required: About 5 minutes)4-1 Remove the top cover. (See procedure 1.)4-2 Remove the six (6) screws marked 910. The DC circuit board can then be removed. (Fig. 4)5. ES Circuit Board(Time required: About 6 minutes)5-1 Remove the top cover. (See procedure 1.)5-2 Remove the DC circuit board. (See procedure 4.)5-3 Remove the two (2) screws marked 820 and four (4) screws marked 830. The ES circuit board can then be removed. (Fig. 5)6. SW Circuit Board(Time required: About 5 minutes)6-1 Remove the top cover. (See procedure 1.)6-2 Remove the two (2) screws marked 200. The SW circuit board can then be removed. (Fig. 5)7. PS Circuit Board(Time required: About 5 minutes)7-1 Remove the top cover. (See procedure 1.)7-2 Remove the two (2) screws marked 160. (Fig. 5)7-3 Pull the PS circuit board toward the rear side to remove it. (Fig. 5) The PS circuit board and the power switch knob will be separated then.8. AC Inlet Assembly(Time required: About 5 minutes)8-1 Remove the top cover. (See procedure 1.)8-2 Remove the two (2) screws marked 640 and the screw marked 650. The AC inlet assembly can then be removed. (Fig. 4)3. 電池交換（所要時間：約 6 分）3-1 外。 （1 項参照）3-2 DM 上、電池交換。 （図 4） 電池、DM 構成部品。DM 交換際、本体電池取外、新取付。 （図 4） 電池交換行、 本体方法項参照。 （79 参照）4. DC （所要時間：約 5 分）4-1 外。 （1 項参照）4-2 910 6 本外、 DC 外。（図 4）5. ES （所要時間：約 6 分）5-1 外。 （1 項参照）5-2 DC 外。 （4 項参照）5-3 820 2 本 830 4 本外、ES 外。 （図 5）6. SW （所要時間：約 5 分）6-1 外。 （1 項参照）6-2 200 2 本外、 SW 外。（図 5）7. PS （所要時間：約 5 分）7-1 外。 （1 項参照）7-2 160 2 本外。 （図 5）7-3 PS 側引外。 （図 5） PS PSW 分離。8. Ass y（所要時間：約 5 分）8-1 外。 （1 項参照）8-2 640 2 本 650 1 本外、 Ass y 外。 （図 4）SB168-ES14160: BIND HEAD TAPPING SCREW-S （） 3.0X6 MFZN2B3 (WE87780R)200: BIND HEAD TAPPING SCREW-S （） 3.0X6 MFZN2B3 (WE87780R)760: BIND HEAD TAPPING SCREW-S （） 3.0X6 MFZN2B3 (WE87780R)820: BIND HEAD TAPPING SCREW-S （） 3.0X6 MFZN2B3 (WE87780R)830: SCREW TP #B +BOND （） 3.0X8 MFZN2B3 (WE774100)Fig. 5 （図 5） Top view Front view820ES200760760760760760830ESSWPSSWPS POWER SWITCH KNOB（PSW）SHEET SUPPORT（）160PS9. Sheet Support(Time required: About 9 minutes)9-1 Remove the top cover. (See procedure 1.)9-2 Remove the DM circuit board. (See procedure 2.)9-3 Remove the DC circuit board. (See procedure 4.)9-4 Remove the ES circuit board. (See procedure 5.)9-5 Remove the six (6) screws marked 760. The sheet support can then be removed. (Fig. 5)9. （所要時間：約 9 分）9-1 外。 （1 項参照）9-2 DM 外。 （2 項参照）9-3 DC