Yamaha-NXP120-hts-sm 维修电路原理图.pdf

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1、SERVICE MANUALThis 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 alreadyknown and understood by the users, and have therefore not b

2、een restated.WARNING:Failure to follow appropriate service and safety procedures when servicing this product may result in personalinjury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,we advise all YAMAHA product owners that any service r

3、equired should be performed by an authorized YAMAHARetailer or the appointed service representative.IMPORTANT:The presentation or sale of this manual to any individual or firm does not constitute authorization, certification orrecognition of any applicable technical capabilities, or establish a prin

4、ciple-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 servicedepartments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable andspecifi

5、cations are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact thedistributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding your

6、self to the ground buss in the unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.IMPORTANT NOTICE100870SERVICE MANUALDVR-S120/NX-P120HOME THEATER SOUND SYSTEM DVX-S120The DVX-S1

7、20 is composed of the DVR-S120 and the NX-P120.DVX-S120 DVR-S120NX-P120 構成。DVR-S120 SELF DIAGNOSIS FUNCTION (DIAG) /DVR-S120自己診断機能（） . . . . . . . . . .2143DISPLAY DATA . . . . . . . . . . . . . . . . . . . . . . . . . .4445IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4655D

8、VR-S120 ADJUSTMENT / DVR-S120調整 . . . . . .56DVR-S120 BLOCK DIAGRAM . . . . . . . . . . . . . .5759DVR-S120 PRINTED CIRCUIT BOARD . . . . . . .6068NX-SW120 PRINTED CIRCUIT BOARD . . . . . . . . .69DVR-S120 SCHEMATIC DIAGRAM . . . . . . . . . .7079NX-SW120 SCHEMATIC DIAGRAM . . . . . . . . . . . .80P

9、ARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8197REMOTE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . .98I CONTENTSTO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . .24PREVENTION OF ELECTRO STATIC DISCHARGE . . . . . .4LOCALE MANAGEMENT INFORMATION . . . . . . .

10、.5SYSTEM COMPOSITION / 構成 . . . . . . . . . . .5FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . .67REMOTE CONTROL PANELS . . . . . . . . . . . . . . . . . .7REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . .89SPECIFICATIONS / 参考仕様 . . . . . . . . . . . . . . . .1012

11、INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . .13DVR-S120 DISASSEMBLY PROCEDURES /DVR-S120分解手順 . . . . . . . . . . . . . . . . . . . . . . . .1418NX-SW120 DISASSEMBLY PROCEDURES /NX-SW120分解手順 . . . . . . . . . . . . . . . . . . . . . . .1920DVR-S120NX-P120RadioFans.CN 收音机爱 好者资料

12、库DVR-S120/NX-P1202DVR-S120NX-P120I TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked Zand must be replaced with parts having specifications equalto those originally installed.2. Leakage Current Measurement (For 120V Models Only)When service ha

13、s been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits.GMeter impedance should be equivalent to 1500 ohm shuntedby 0.15F.AC LEAKAGETESTER OREQUIVALENTEQUIPMENTUNDER TESTINSULATINGTABLEWALLOUTLETGLeakage current must not exceed 0.5m

14、A.GBe sure to test for leakage with the AC plug in bothpolarities.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/orplastic (where applicable) components may also contain traces of chemicals found by the C

15、alifornia Health andWelfare Agency (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 FORANY REASON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin!

16、When soldering, do not inhale solder fumesor expose eyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your handsbefore handling food.About lead-free solder / 無鉛The foil side of MAIN P.C.B. and SUB P.C.B. used for theDVR-S120

17、 are soldered with lead-free soldering materialwhich is an alloy of Sn+Ag+Cu (tin + silver + copper).For the soldering points other than the above, lead solder isused.Among some types of lead-free solder currently available, itis recommended to use one of the following types for therepair work. Sn +

18、 Ag + Cu (tin + silver + copper) Sn + Cu (tin + copper) Sn + Zn + Bi (tin + zinc + bismuth)Caution:1. As the melting point temperature of the lead-free solderis about 30C to 40C (50F to 70F) higher than that ofthe lead solder, be sure to use a soldering iron suitable toeach solder.2. If lead solder

19、must be used, be sure to remove lead-freesolder from each terminal section of the parts to be re-placed and from the area around it completely before sol-dering, or make sure that the lead-free solder and leadsolder melt together fully.DVR-S120使用MAIN基板SUB基板面付、Sn+Ag+Cu （錫+銀+銅）合金無鉛使用。、上記以外付鉛入使用。無鉛種類、修

20、理時下記無鉛使用推奨。Sn+Ag+Cu （錫+ 銀+銅）Sn+Cu （錫+ 銅）Sn+Zn+Bi （錫+ 亜鉛+）注意：1. 無鉛融点温度通常鉛入比3040 程度高、合使用。2. 鉛入使得場合、 交換部品端子部周辺部無鉛取除、 無鉛鉛入十分溶状態付。RadioFans.CN 收音机爱 好者资料库DVR-S120/NX-P120DVR-S120NX-P1203WARNING: Laser SafetyThis product contains a laser beam component. Thiscomponent may emit invisible, as well as visible

21、radiation,which may cause eye damage. To protect your eyesand skin from laser radiation, the following precautionsmust be used during servicing of the unit.1) When testing and/or repairing any component within theproduct, keep your eyes and skin more than 30 cmaway from the laser pick-up unit at all

22、 times. Do notstare at the laser beam at any time.2) Do not attempt to readjust, disassemble or repair thelaser pick-up, unless noted elsewhere in this manual.3) CAUTION : Use of controls, adjustments orperformance of procedures other than those specifiedherein may result in hazardous radiation expo

23、sure.Laser Emitting conditions:1) When the Top Cover is removed, and the STANDBY/ON SW is turned to the ON position, the lasercomponent will emit a beam for several seconds todetect if a disc is present. During this time (5-10 sec.)the laser may radiate through the lens of the laser pick-up unit. Do

24、 not attempt any servicing during this period!If no disc is detected, the laser will stop emitting thebeam. When a disc is loaded, you will not be exposedto any laser emissions.2) The laser power level can be adjusted with the VR onthe pick-up PWB, however, this level has been set bythe factory prio

25、r to shipping from the factory. Do notadjust this laser level control unless instruction isprovided elsewhere in this manual. Adjustment of thiscontrol can increase the laser emission level from thedevice.警告：安全対策本機光線放射部品搭載。部品放射光線目損傷起。光線目及肌保護、本機修理作業中下記注意厳守。） 時修理時、 目及肌光30c以上離。 場合光線見。） 光再調整及分解。） 上指定以外制

26、御、 調整、手順光線照射結果招恐。放射条件） 取外STANDBY/ONON、検知510秒間、光光線放射。 間、 修理。検知、 光線放射停止。 場合、 遮光線修理担当者届。） 光基板上VR調整可能、 工場出荷前調整済、VR廻。VR廻装置光線放射上恐。Laser Diode PropertiesType:Semiconductor laser GaAlAsWave length:650 nm (DVD)790 nm (VCD/CD)Output Power:1.45 mW (DVD)1.31 mW (VCD/CD)Beam divergence:60 degreeVARO!: AVATTAESSA

27、 JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NKYMTTMLLELASER-STEILYLLE. L KATSO STEESEEN.VARNING! : OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRREN R URKOPPLAD.BETRAKTA EJ STRLEN.半導体 GaAl As波長650 nm (DVD)790 nm (VCD/ CD)出力1. 45 mW (DVD)1. 31 mW (VCD/ CD)広60 度DVR-S120/NX-P1204DVR-S120NX-P120I PR

28、EVENTION OF ELECTRO STATIC DISCHARGEThe laser diode in the traverse unit (optical pickup) may be damaged due to static electricity from clothes or the humanbody. Use caution to prevent electrostatic damage when servicing or handling the laser diode.1. Grounding for electrostatic damage preventionSom

29、e devices, such as the DVD player, use an optical pickup (laser diode) that will be damaged by static electricity in theworking environment. Only attempt service after ensuring that all grounding procedures have been completed.1. Worktable groundingPut a grounded conductive material (sheet) or iron

30、sheet on the area where the optical pickup is placed.2. Human body groundingUse an anti-static wrist strap to discharge the static electricity from your body.2. Handling of the optical pickup1. To prevent damage to the optical pickup replacement parts during transportation and before installation, b

31、oth endsof the laser diode are short-circuited. After installing the new part, remove the short circuit according to the correctprocedure in this service manual.2. Do not use a tester to check the laser diode in the optical pickup. The power supply in the tester will damage thelaser diode.3. Handlin

32、g Precautions for the Traverse Unit (Optical Pickup)1. Handle the traverse unit (optical pickup) gently, as it is an extremely high-precision assembly.2. The flexible cable lines may break if an excessive force is applied to it. Use caution when handling the cable.3. The semi-fixed resistor for lase

33、r power adjustment should not be adjusted. Do not turn the resistor.WARNINGThe use of optical instruments with this product will increase eye hazard.Repair handling should take place as much as possible with a disc loaded inside the player.U, C, R, T, K, G, B, L, A modelsThe label is put on the bott

34、om side of the unit.U, C, R, T, K, G, B, L, A models1MConductive material(sheet) or steel sheetAnti-static wrist strapDVR-S120/NX-P120DVR-S120NX-P1205I LOCALE MANAGEMENT INFORMATIONLocale Management Information : This DVD player is designed and manufactured to respond to the LocaleManagement Informa

35、tion that is recorded on a DVD disc. If the Locale number described on the DVD disc does notcorrespond to the Locale number of this DVD player, this DVD player cannot play this disc.This product incorporates copyrightprotection technology that is protected bymethod claims of certain U.S. patents and

36、other intellectual property rights owned byMacrovision Corporation and other rightsowners. Use of this copyright protectiontechnology must be authorized byMacrovision Corporation, and is intendedfor home and other limited viewing usesonly unless otherwise authorized byMacrovision Corporation. Revers

37、eengineering or disassembly is prohibited.qwrwttrwyetThe DVX-S120 is composed of the DVR-S120 and the NX-P120.I SYSTEM COMPOSITION / 構成NX-S120NX-S120NX-C120NX-SW120DVR-S120NX-P120DVR-S120/NX-P1206DVR-S120NX-P120M DVR-S120I FRONT PANELSB, G modelsU, C, R, T, K, L, A modelsJ modelDVR-S120/NX-P120DVR-S

38、120NX-P1207M NX-SW120M U, C, R, T, K, L, A modelsI REMOTE CONTROL PANELSM B, G modelsM J modelM NX-C120M NX-S120DVR-S120/NX-P1208DVR-S120NX-P120I REAR PANELSM DVR-S120 (U, C, R, T, K, L, A models)M DVR-S120 (B, G models)M DVR-S120 (J model)NX-S120IMPEDANCENOMINALMAXIMUMINPUTINPUT6 OHMS30 WATTS100 WA

39、TTSNX-C120IMPEDANCENOMINALMAXIMUMINPUTINPUT6 OHMS30 WATTS100 WATTSM NX-S120M NX-C120DVR-S120/NX-P120DVR-S120NX-P1209NX-SW12040M NX-SW120 (U, C models)NX-SW12040M NX-SW120 (B, G models)NX-SW12040M NX-SW120 (R, L, T, K models)NX-SW12040M NX-SW120 (A model)NX-SW12025M NX-SW120 (J model)DVR-S120/NX-P120

40、10DVR-S120NX-P120I SPECIFICATIONS / 参考仕様AMPLIFIER SECTION / 部Input Sensitivity/Impedance / 入力感度/ VCR, VIDEO . . . . . . . . . . . . . . . . . . . . .200 mV/47 kMaximum Input Signal / 最大許容入力VCR, VIDEO (1kHz, 0.5 % THD) . . . . . . . . . . . . .2.2 VOutput Level/Impedance / 出力電圧/ (when 1 kHz, 200 mV i

41、s input)REC OUT . . . . . . . . . . . . . . . . . . . . . .200 mV/1.2 kPRE OUT (FRONT L/R, CENTER, REAR L/R) . . . .1VPRE OUT (SUBWOOFER/FRONT SP Small, 50Hz) . . .4VFrequency Response / 周波数特性REC OUT (FRONT L/R, 20 Hz to 20 kHz) . . .0/-1 dBSignal to Noise Ratio (IHF-A Network) / S/ N比VCR, VIDEO (RE

42、C OUT, Input shorted, 200mV) . . .90 dBMinimum RMS Output Power / 定格出力FRONT L/R (6 , 1 kHz, 0.9% THD) . . . . . . . .45 W/chCENTER (6 , 1 kHz, 0.9% THD) . . . . . . . . . . . .45 WSURROUND L/R (6 , 1 kHz, 0.9% THD) . . .45 W/chU, C OnlyFRONT L/R (6 , 20 Hz to 20 kHz, 0.9% THD) . . .45 W/chCENTER (6

43、, 20 Hz to 20 kHz, 0.9% THD) . . . . . .45 WSURROUND L/R (6 , 20 Hz to 20 kHz, 0.9% THD) . . .45 W/chMaximum Power (EIAJ) / 実用最大出力FRONT L/R (6 , 1 kHz, 10% THD) . . . . . . . .55 W/chCENTER (6 , 1 kHz, 10% THD) . . . . . . . . . . . .55 WSURROUND L/R (6 , 1 kHz, 10% THD) . . . .55 W/chTotal Harmonic

44、 Distortion / 全高調波歪率FRONT L/R (1 kHz, 20 W, SP OUT) . . . . . . . .0.05 %VIDEO SECTION (VCR, VIDEO) / 部Video Signal Type / 信号方式 . . . . . . . . . .NTSC/PALVideo Signal Level / 信号Video . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Vp-p/75 S-VideoY . . . . . . . . . . . . . . . . . . . . . .

45、. . . . 1 Vp-p/75 C . . . . . . . . . . . . . . . . . . . . . . . 0.286 Vp-p/75 Maximum Input Level / 最大許容入力VCR, VIDEO . . . . . . . . . . . . . . . . . . . . . . . . .1.5 Vp-pSignal to Noise Ratio / S/ N比Monitor Out . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 dBFrequency Response / 周波

46、数帯域Monitor Out (5 Hz to 10 MHz)Video . . . . . . . . . . . . . . . . . . . . . . . . . . . .0/-3 dBS-Video . . . . . . . . . . . . . . . . . . . . . . . . . .0/-3 dBTUNER SECTION / 部FM Tuning Range / FM受信周波数範囲U, C, K models . . . . . . . . . . . . . . .87.5 to 107.9 MHzA, B, G models . . . . . . . .

47、 . . . . . 87.50 to 108.00 MHzL, R models . . . . . . . . . . . . . . . . . . 87.5 to 108.0 MHz87.50 to 108.00 MHzJ model . . . . . . . . . . . . . . . . . . . . . . 76.0 to 90.0 MHzAM Tuning Range / AM受信周波数範囲U, C, K models . . . . . . . . . . . . . . . . 530 to 1710 kHzDVR-S120A, B, G, J models . .

48、 . . . . . . . . . . . . . 531 to 1611 kHzL, R models . . . . . . . . . . . . . . . . . . . 530 to 1710 kHz 531 to 1611 kHzDVD SECTION / DVD部Output Level / 出力REC OUTDVD/VIDEO, CD/CD-DA (1 kHz, 0 dB) . . . . .2 0.3 VVideo Output / 映像信号出力 . . . . . . . . . . . . . . . .1 Vp-p/75 Y Output/S-Video Outpu

49、t / Y出力/ S映像出力 . . . . .1 Vp-p/75 C Output/S-Video Output / C出力/ S映像出力U, C, R, J models . . . . . . . . . . . . . . . .0.286 Vp-p/75 K, L, A, B, G models . . . . . . . . . . . . . . .0.3 Vp-p/75 Y Output/Component Video Output / Y出力/ 出力Except J model . . . . . . . . . . . . . . . . . . .1.0 Vp-p/75

50、Pb Output/Component Video Output / Pb出力/ 出力Except J model . . . . . . . . . . . . . . . . . . .0.7 Vp-p/75 Pr Output/Component Video Output / Pr出力/ 出力Except J model . . . . . . . . . . . . . . . . . . .0.7 Vp-p/75 GENERAL / 総合Power Supply / 電源電圧U, C models . . . . . . . . . . . . . . . . . . . . AC