Yamaha XH200 Power Amp Service Manual 电路图.pdf

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1、XH200 1 SERVICE MANUAL 200511-176400 CONTENTS SPECIFICATIONS. 3 CIRCUIT BOARD LAYOUT. 4 WIRING. 5 DIMENSIONS. 6 PANEL LAYOUT. 7 DISASSEMBLY PROCEDURE. 8 IC BLOCK DIAGRAM. 15 CIRCUIT BOARDS. 16 INSPECTIONS. 25/30 TROUBLESHOOTING. 35/58 BLOCK DIAGRAM CIRCUIT DIAGRAM PARTS LIST POWER AMPLIFIER Copyrigh

2、t (c) Yamaha Corporation. All rights reserved. PDF 05.12 HAMAMATSU, JAPAN PA011807 （総合仕様） （） （結線図） （寸法図） （） （分解手順） （IC図） （基板図） （検査） （） （） （回路図） （目次） RadioFans.CN 收音机爱 好者资料库 2 XH200 WARNING Components having special characteristics are marked and must be replaced with parts having specification equal

3、 to those originally installed. 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 already known and under- stood

4、 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 per- sonal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise

5、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 certifi- cation, recognition of any applic

6、able 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. Mod

7、ifications 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 stat

8、ic 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: CHEMICAL CONTENT NOTIC

9、E! The solder used in the production of this product contains LEAD. 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

10、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 co

11、me in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT. The wires in this mains lead are coloured in accordance

12、with the following code: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As 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 c

13、onnected 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 con

14、nected to the terminal which is marked with the letter L or coloured RED. 印部品、安全維持重要部品。交換場合、安全必指定部品使用。 RadioFans.CN 收音机爱 好者资料库 XH200 3 SPECIFICATIONS 0 dBu=0.775 Vrms, Half Power=1/2 Output Power (3 dB below rated power) Output Power40 Hz 20 kHz THD+N= 0.1 % 70 V, RL=25 MIN 200 W x 2 100 V, RL=50 20

15、0 W x 2 Power ConsumptionStandby5 W Idle40 W 1/8 (4 /Pink noise) 400 W THD+N40 Hz 20 kHz, Half PowerMAX0.1 % Intermodulation Distortion60 Hz:7 kHz, 4:1, Half PowerMAX0.1 % Frequency ResponsePo=1 W, HPF=40 Hz, 80 Hz 20 kHz MAX0 dB TYP0 dB MIN0.5 dB SN Ratio(DIN AUDIO)MIN103 dB Channel SeparationHalf

16、Power, 1 kHz, Att. max, input 600 shuntMIN60 dB Residual Noise Att. min, (DIN AUDIO)MAX65 dBu Input Sensitivity Att. maxTYP+4 dBu Voltage Gain Att. maxTYP38 dB (100 V), 35 dB (70 V) Maximum Input VoltageMIN+22 dBu Input ImpedanceTYP20 k (balanced), 10 k (unbalanced) ControlsFront PanelPOWER switch (

17、push on/push off) attenuator (31 position) x 2 Rear PanelOUTPUT VOLTAGE switch (100 V/70 V) x 1 HPF switch (40 Hz/80 Hz 12 dB/oct) x 2 ConnectorsINPUTEuroblock connector (balanced) /ch SPEAKERSBarrier strip/ch MONITOR/REMOTEDsub 15P x 1 IndicatorsPOWER/STANDBY x 1 (Green/Orange) SIGNAL x 2 (Green) C

18、LIP/LIMIT x 2 (Red) PROTECT/MUTE x 1 (Red) Load Protection POWER switch on/off mute DC-fault: output relay off/restored automatically. Clip limiting : THD 0.5 % Amplifier ProtectionThermal: Cuts the output (when heatsink temp. 90 C); operation restored automatically. VI limiter (RL 16 ): Limits the

19、output. Power Supply ProtectionThermal: Power supply shutdown (when temp. 90 C); operation not restored automatically. CoolingVariable-speed fan x 1 Dimensions (W x H x D)480 x 88 x 412 mm Weight9.8 kg Included AccessoriesPower cord, Security cover, Owners Manual, 3-pin Euroblock connector x 2 （総合仕様

20、） RadioFans.CN 收音机爱 好者资料库 4 XH200 CIRCUIT BOARD LAYOUT Front view Top view Rear view LED ATT MAIN IN3 OUT3 MONI ATT LEDPSW PSW IN3 OUT3 MONI （正面見図） （上見図） （後側見図） （） XH200 5 WIRRING CN501 CN102 W104A W104B CN101 CN302 CN301 CN502 CN506 CN607 CN702 CN606 CN601 CN902 CN951 CN604 CN609 CN901 CN701 CN507

21、W701 MAIN MONIOUT3IN3 PSWLED ATT GRAY RED BLUE YELLOW YELLOW BROWN BLACK ORANGE BLACK BLACK WHITE GREEN/YELLOW FAN CN705 W52 W504 W503CW503AW503B W51W53W54 W55 CN52 *1 *1.White wire and black wire are twisted by four rotations or more. 白黒線材4回転以上。 *2.Yellow wire and brown wire are twisted by six rota

22、tions or more. 黄茶線材6回転以上。 *2 q t o !2 !5 !0 !3 !1 i !4 e r w u y （結線図） 6 XH200 No. LocationParts No.DestinationRemarks Connector Assembly q? w? ? e? r? t? y? u? ? ? i? ? o? !0? !1? !2? !3? !4? !5? ? 140 230 270 290 370 - W104 W503 W504 W701 W51 W52 W53 W54 W55 MF119300 WE510800 MF107070 WA968500 MF1

23、15120 (WE95620) (WG29070) WE943500 WE943600 WE350600 WE349900 WE350000 WE350100 WE350200 WE350500 C&C AC INLET C&C - C&C Jamper Wire MONI PSW B&C B&C PLED B&C B&C B&C B&C B&B B&C MAIN-CN601 AC INLET MAIN-CN606 DC Fan MAIN-CN607 MONI-CN951 MAIN-CN609 PSW-CN705 MAIN-W54 (S) PSW-W701 (S) OUT3-W51 (S) O

24、UT3-W52 (S) OUT3-W53 (S) OUT3-W54 (S) OUT3-W55 (S) IN3-CN902 MAIN-CN501 MAIN-CN502 ATT-CN701 MAIN-CN506 LED-CN702 MAIN-CN604 (S) MAIN-W104A (S) MAIN-W104B (S) MAIN-W503A (S) MAIN-W503B (S) MAIN-W503C (S) OUT3-CN52 MAIN-CN507 MAIN-CN101 MAIN-CN102 MAIN-CN301 MAIN-CN302 IN3-CN901 19P L=300 P=1.25 3P L

25、=170 7P L=70 P=1.25 with Fan 15P L=120 P=1.25 16P 4P L=300 4P (3P) L=430 YE/YE/BR 1P L=180 BL 3P L=140 1P L=380 RE 1P L=380 OR 1P L=380 GY 1P L=380 BE 1P L=310 BL 3P (2P) 2P * ( ): Unavailable partRefer to Parts List for the location. * (S): Soldering （）（部品番号）（配線先）（備考） （束線名） （非部品） （半田付） （参照。 ） DIMEN

26、SIONS H=88 76.2 W=480 432.8 374.530 404.5 410 D=411.7 392.5 11 32.02 44.72 76.2 5.5 Units: mm （寸法図） （単位） XH200 7 PANEL LAYOUT Front Panel qty wer Rear Panel uio!0!1!2!3 q w e r t y u i o !0 !1 !2 !3 Front Panel Rear Panel POWER/STAND-BY switch and indicator PROTECT/MUTE indicator CLIP/LIMIT indicato

27、r SIGNAL indicator VOLUME controls A-B Air intakes Euroblock connectors HPF switches OUTPUT VOLTAGE switches MONITOR/REMOTE terminal SPEAKERS terminals A-B (/+) GND terminal AC IN MONITOR/REMOTE Pin Description Pin No.SignalDescription 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 GND REMOTE CONTROL MONITOR R

28、EMOTE CONTROL MONITOR STANDBY MODEL ID - MUTE CH B - MUTE CH A - PROTECT STATUS CH B - PROTECT STATUS CH A - OUTPUT LEVEL CH B - OUTPUT LEVEL CH A STANDBY Control: Supply 5VDC. 5mADC 820 (Impedance to GND) MUTE Control: Connect to GND, +5V, 1mA PROTECTION Off/Output On: +5VDC, Zo=270 PROTECTION On/O

29、utput Off: 0VDC, Zo=High 33.2dBu of Speaker Output Level, RL=7.5k, Zo=300 （） q w e r t y u i o !0 !1 !2 !3 POWER/STAND-BY 、 PROTECT/MUTE CLIP/LIMIT SIGNAL A B 吸気口 入力端子 HPF OUTPUT VOLTAGE MONITOR/REMOTE 端子 SPEAKERS 端子 AB (/+) 用 AC XH200 8 DISASSEMBLY PROCEDURE 1.（所要時間：約2 分） 1-152011本外、 外 。 （図 1） 1.To

30、p Cover (Time required: About 2 minutes) 1-1Remove the eleven (11) screws marked 520. The top cover can then be removed. (Fig.1) 2. Ass y（所要時間：約 4 分） 2-1外。 （1 項参照） 2-2480 3本外、外 。 （図 2） 左右同外。 2-320左右1本、 4906本、 1本外、 Ass y外。 （図 2、3、写真 1、2） 、Ass yPSW LED 状態外。 Ass y外、先PSWLED 接続外 。 Fig.1 520: Bind Head Ta

31、pping Screw-B4.0X8 MFZN2B3 (WE962000) 2.Front Panel Assembly (Time required: About 4 minutes) 2-1Remove the top cover. (See procedure 1) 2-2Remove the three (3) screws marked 480. The rack angle bracket can then be removed. (Fig. 2) *The right and left rack angle brackets can be removed in the same

32、manner. 2-3Remove the one (1) each screw marked 20 to the left and the right, six (6) screws marked 490, and the cord holder. The front panel assembly can then be removed. (Fig. 2, 3, Photo 1, 2) *When removing the front panel assembly, remove it together with the PSW circuit board and LED circuit b

33、oard. Before removing the front panel assembly, be sure to remove the connectors connected to the PSW circuit board and LED circuit board. Top view Top cover 520 520 520 520520 （上見図） （） （分解手順） (B BIND) （図1） 9 XH200 Fig.2 20: Bind Head Tapping Screw-B4.0X8 MFZN2B3 (WE962000) 480: Bind Head Screw4.0X1

34、0 MFZN2B3 (WE980400) Fig.3 490: Bind Head Tapping Screw-B4.0X8 MFZN2B3 (WE962000) Photo 1 Photo 2 380: Bind Head Tapping Screw-S3.0X6 MFZN2W3 (WE877900) Left side view Rack angle bracket 20 480 （左側見図） （） 490 PSW ATT Front Panel 1 490490 Top view Rack angle bracketRack angle bracket 490 Front Panel 1

35、 490490 Bottom view Rack angle bracketRack angle bracket （1） （上見図） （）（） （1） （底面見図） （）（） （） Cord holder Front side Rear side Top view （後側） （前側） （上側見図） Rear view PSW LED Front panel assembly Angle, Handle 380 Angle, Handle （後側見図） （Assy） （）（） (B BIND) (小BIND) （図2） (BBIND) （図3） （写真1） （写真2） (S BIND) XH20

36、0 10 Fig.4 120: Bind Head Tapping Screw-S3.0X6 MFZN2W3 (WE877900) 250: Bind Head Tapping Screw-S4.0X8 MFZN2W3 (WE941800) 120B 250 AC INLET （AC） 120A120A120B 120B 120B Air duct, Main Top view MAIN PSW ATT LED OUT3MONIIN3 （） （上見図） DC Fan Air duct RAir duct L Air duct, Main （DC） （R）（L） （） （） (S BIND) (

37、S BIND) （図4） 11 XH200 3. MAIN （所要時間：約7 分） （所要時間：約 10 分） 3-1外。 （1 項参照） 3-2 Ass y 外。 （2 項参照） 3-3120A 2 本120B 13 本外、 MAIN 外。 （図 4） L, R 及 MAIN離、MAIN楽 取外。 （図4） 3-4150A2本2枚、 150B 18 本 18 枚外、 MAIN外。 （図5） 同時外 、無注意。 4.MONI （所要時間：約2 分） 4-1外。 （1 項参照） 4-22106角2本外、MONI 外。 （図7） 5.IN3 （所要時間：約3 分） 5-1外。 （1 項参照） 5-

38、2120A2本外、 IN3離。 （図4） 5-31502本、 1602本外、IN3 外。 （図 7） Fig.5 150: Bind Head ScrewSP 3.0X12 MFZN2W3 (WE877700) 3. MAIN Circuit Board (Time required: About 7 minutes) Heat Sink (Time required: About 10 minutes) 3-1Remove the top cover. (See procedure 1) 3-2Remove the front panel assembly. (See procedure 2

39、) 3-3Remove the two (2) screws marked 120A and thirteen (13) screws marked 120B. The MAIN circuit board can then be removed. (Fig. 4) *Remove the air ducts R, L, and Main from the MAIN circuit board in advance and the MAIN circuit board can be removed easily. (Fig. 4) 3-4Remove the two (2) screws an

40、d two (2) washers marked 150A and eighteen (18) screws and eighteen (18) washers marked 150B. The heat sink can then be removed from the MAIN circuit board. (Fig. 5) *The spacers can be removed together with the heat sink. Be careful not to lose them. 4.MONI Circuit Board (Time required: About 2 min

41、utes) 4-1Remove the top cover. (See procedure 1) 4-2Remove the two (2) screws marked 210. The MONI circuit board can then be removed. (Fig. 7) 5.IN3 Circuit Board (Time required: About 3 minutes) 5-1Remove the top cover. (See procedure 1) 5-2Remove the two (2) screws marked 120A. Move the air duct M

42、AIN away from the IN3 circuit board. (Fig. 4) 5-3Remove the two (2) screws marked 150, and the two (2) screws marked 160. The IN3 circuit board can then be removed. (Fig. 7) MAIN Circuit board 150A Heat sink （） Heat sink （） Spacer （）150B （図5） (小BIND) XH200 12 6.OUT3（所要時間：約3 分） 6-1外。 （1 項参照） 6-25402本

43、外、SPA 外。 （図6） 6-3180 2 本外、OUT3 外 。 （図7） 7.AC （所要時間：約2 分） 7-1外。 （1 項参照） 7-22402本、 2501本外、AC 外。 （図 4、7） Fig.6 540: Bind Head Tapping Screw-S3.0X6 MFZN2B3 (WE877800) Fig.7 150: Bonding Tapping Screw-B3.0X10 MFZN2B3 (WE878000) 160: Pan Head Screw2.6X6 MFZN2B3 (WE986400) 180: Bonding Tapping Screw-B3.0X1

44、0 MFZN2B3 (WE878000) 210: Hex. Locking ScrewHFS-4S-B1W (V6706600) 240: Bind Head Tapping Screw-S3.0X8 MFZN2B3 (WF257500) 6.OUT3 Circuit Board (Time required: About 3 minutes) 6-1Remove the top cover. (See procedure 1) 6-2Remove the two (2) screws marked 540. The speaker terminal cover A can then be

45、removed. (Fig. 6) 6-3Remove the two (2) screws marked 180. The OUT3 circuit board can then be removed. (Fig. 7) 7.AC Inlet (Time required: About 2 minutes) 7-1Remove the top cover. (See procedure 1) 7-2Remove the two (2) screws marked 240 and the screw marked 250. The AC inlet can then be removed. (

46、Fig. 4, 7) 540540 Speaker terminal cover B Rear view （SP B） （後側見図） IN3 150150 210 180180240160 OUT3MONI Rear view （後側見図） (S BIND) （図6） (B BOND) (小PAN) (B BOND) (6 角) (S BIND) （図7） 13 XH200 Fig.8 450: Hex. Socket Set Screw3.0X10 MFZN2B3 (WF419400) 8.PSW （所要時間：約3 分） 8-1外。 （1 項参照） 8-2450 6 本外、 2 外 。 （図

47、 8） 8-3PSW 手前引抜。 （図 9） 8-44102本外、 PSW外。 （図 9） 9.LED （所要時間：約5 分） 9-1外。 （1 項参照） 9-2 Ass y 外。 （2 項参照） 9-3Ass y裏返、 3802本 外、LED 外。 （写真 2） Fig.9 410: Bind Head Tapping Screw-S3.0X6 MFZN2W3 (WE877900) 8.PSW Circuit Board (Time required: About 3 minutes) 8-1Remove the top cover. (See procedure 1) 8-2Remove

48、the six (6) screws marked 450. The front panel 2 can then be removed. (Fig. 8) 8-3Pull out the power switch knob. (Fig. 9) 8-4Remove the two (2) screws marked 410. The PSW circuit board can then be removed. (Fig. 9) 9.LED Circuit Board (Time required: About 5 minutes) 9-1Remove the top cover. (See procedure 1) 9-2Remove the front panel assembly. (See procedure 2) 9-3Rever