Yamaha-PC6501N-pwr-sm1 维修电路原理图.pdf

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1、SERVICE MANUALCONTENTS（目次）SPECIFICATIONS（総合仕様）.3/4PANEL LAYOUT（）.5CIRCUIT BOARD LAYOUT（）.6DIMENSIONS（寸法図）.7PERFORMANCE GRAPHS（特性図）.8DISASSEMBLY PROCEDURE（分解手順）.9NOTES ON WIRING（配線上注意）.14/15LSI PIN DESCRIPTION（LSI 端子機能表）.16IC BLOCK DIAGRAM（IC 図）.17CIRCUIT BOARDS（基板図）.19INSPECTIONS（検査）.30/38PARTS LIST

2、BLOCK DIAGRAM（）WIRING DIAGRAM（基板結線図）OVERALL CIRCUIT DIAGRAM（総回路図）PA011763PC6501N: 200412-399000PC4801N: 200412-367500PC3301N: 200412-315000PC2001N: 200412-283500HAMAMATSU, JAPANCopyright (c) Yamaha Corporation. All rights reserved. PDF-K9051 05.01POWER AMPLIFIERPC6501N/PC4801N/PC3301N/PC2001NPC6501N

3、（ECF ： 無塩素系漂白） 使用。This document is printed on chlorine free (ECF) paper.RadioFans.CN 收音机爱 好者资料库PC6501N/PC4801N/PC3301N/PC2001N2 * This applies only to products distributed by YAMAHA KEMBLE MUSIC (U.K.) LTD.IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and

4、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 s

5、ervicing 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

6、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

7、 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. Sh

8、ould 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

9、 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 NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where appl

10、icable) 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/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT S

11、O 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.WARNING: THIS

12、 APPARATUS MUST BE EARTHEDIMPORTANTTHE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE:GREEN-AND-YELLOW : EARTHBLUE : NEUTRALBROWN : LIVEAs the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals

13、 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 coloured GREEN and YELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked wi

14、th 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. WARNINGComponents having special characteristics are marked and must be replaced with parts having specification equal to those originally installed

15、.印商品、 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PC6501N/PC4801N/PC3301N/PC2001N3 SPECIFICATIONSPC6501NPC4801NPC3301NPC2001NPower output level (Rated power)120 V (U, V, T)/240 V (A)230 V (H, B, W, K, O)120 V (U, V, T)/240 V (A)230 V (H, B, W, K, O)120 V (U, V, T)/240 V (A)230 V (H, B, W, K, O)

16、120 V (U, V, T)/240 V (A)230 V (H, B, W, K, O)1 kHz, THD+N=1 %8 /STEREO700 W x 2750 W x 2550 W x 2500 W x 2350 W x 2400 W x 2230 W x 2250 W x 24 /STEREO1100 W x 21150 W x 2 850 W x 2800 W x 2600 W x 2700 W x 2400 W x 2450 W x 28 /BRIDGE2200 W2300 W1700 W1600 W1200 W1400 W800 W900 W20 Hz-20 kHz, THD+

17、N=0.1 % 8 /STEREO650 W x 2650 W x 2475 W x 2450 W x 2330 W x 2350 W x 2200 W x 2230 W x 24 /STEREO930 W x 2930 W x 2725 W x 2700 W x 2525 W x 2550 W x 2325 W x 2400 W x 28 /BRIDGE1860 W1860 W1450 W1400 W1050 W1100 W650 W800 W16 /BRIDGE (100 V) -625 W625 W-1 kHz, 20 mS nonclip2 /STEREO1500 W x 21600

18、W x 2 1200 W x 21200 W x 2 800 W x 2900 W x 2500 W x 2600 W x 24 /BRIDGE3000 W3200 W2400 W2400 W1600 W1800 W1000 W1200 WPower bandwidth10 Hz-40 kHz (THD+N=0.5 %)Half powerTotal harmonic distortion (THD+N)0.1 %20 Hz-20 kHz, Half powerFrequency responseMAX0 dBRL=8 , Po=1 W,TYP0 dBf=20 Hz-50 kHzMIN1 dB

19、Intermodulation distortion (IMD)0.1 %60 Hz:7 kHz, 4:1, Half powerChannel separation70 dBHalf power, RL=8 , 1 kHz,Vol. max., Input 600 shuntResidual noise-70 dBuVol. min., 20 Hz-20 kHz (DIN AUDIO)SN ratio105 dB103 dB101 dB100 dB20 Hz-20 kHz (DIN AUDIO)Damping factor800500RL=8 , f=1 kHzSensitivity+8 d

20、Bu+6 dBu+4.5 dBu+3 dBuVol. max., Rated power into 8 Voltage gainTYP32 dBVol. max.Maximam input voltageMIN+22 dBuInput impedanceTYP20 k/Balanced, 10 k/UnbalancedControlsFront panelPOWER switch (ON/OFF)Volume (31 positions) /chRear panelMODE switch (STEREO/BRIDGE/PARALLEL)HPF switch (ON/OFF) /ch fc=20

21、 Hz 12 dB/octaveDIP switch (6P)ConnectorsInputXLR-3-31 type /chEuroblock connector (balance) /chOutputSPEKON /ch, 5-way binding postsNetworkRJ45 x 2PowerAC inletIndicatorsPOWER/STAND-BYGreen/OrangePROTECTIONRedTEMPRed (heatsink temp85C)REMOTEGreenLevel meters10 points LED meter /chLoad protectionPOW

22、ER switch ON muting, DC detectionAmp. protectionTemp. detection (heatsink temp90C), VI limiter (RL1 )LimiterComp.: THD0.5 %CoolingDual variable-speed fanPower requirementsU, V, T120 V, 60 HzH, B, W, K, O230 V, 50/60 HzA240 V, 50/60 HzPower consumptionIdling40 WOutput power, 4 700 W (U, V, T)/800 W (

23、A)800 W(H, B, W, K, O)450 W (U, V, T)/600 W (A)600 W(H, B, W, K, O)450 W (U, V, T)/500 W (A)500 W(H, B, W, K, O)350 WDimensions (W x H x D)480 x 88 x 456 mmWeight12.5 kgAccessoriesPower cord, Security cover, Owners manual, 3-pin Euroblock connector x 20 dBu=0.775 Vrms, Half power=1/2 Output power (3

24、 dB below rated power)PC6501N/PC4801N/PC3301N/PC2001N4総合仕様PC6501NPC4801NPC3301NPC2001N出力1kHz、 THD N 18/STEREO750W 2500W 2350W 2230W 24/STEREO1100W 2800W 2600W 2350W 28/BRIDGE2200W1600W1200W700W20Hz 20kHz、 THD N 0.18/STEREO650W 2450W 2315W 2200W 24/STEREO930W 2650W 2500W 2325W 28/BRIDGE1860W1300W1000

25、W650W16/BRIDG （100V） 625W1kHz, 20mS nonclip2/STEREO1500W 21100W 2800W 2500W 24/BRIDGE3000W2200W1600W1000W出力帯域幅10Hz 40kHz （THD N 0.5）Half power全高調波帯域 （THD N） 0.120Hz 20kHz、 Half power周波数特性MAX0dBRL 8、 Po 1W、TYP0dBf 20Hz 50kHzMIN 1dB混変調歪率 （IMD） 0.160Hz ： 7kHz、 4 ： 1、 Half power 70dBHalf power、 RL 8、 1k

26、Hz、 最大、 入力 600 残留 70dBu 最小、 20Hz 20kHz （DIN AUDIO）SN 比105dB103dB101dB100dB20Hz 20kHz （DIN AUDIO） 800 500RL 8、 f 1kHz入力感度 8dBu 6dBu 4.5dBu 3dBu 最大、 Rated power ： 8TYP32dB 最大最大許容入力電圧MIN 22dBu入力TYP20k/ 型、 10k/ 型 POWER （ON/OFF） （31 ）MODE （STEREO/BRIDGE/PARALLEL）HPF （ON/OFF） fc 20Hz 12dB/octaveDIP （6P） 入

27、力XLR-3-31 （）出力、 5 RJ45 2電源AC （PC6501N 除 ）POWER/STAND-BY緑 / PROTECTION赤TEMP赤 （ 温度 85 ）REMOTE緑10 LED POWER 、 DC 検出 温度検出 （ 温度 90 ）、 VI （RL 1） ： THD 0.5 連続可変式 電源100V、 50/60Hz消費電力無信号40W規定出力、 4800W600W450W300W最大外形寸法 （W H D）480 88 456mm重量12.5kg付属品電源 （PC6501N 除）、 、 取扱説明書、 3 x 20 dBu=0.775 Vrms, Half power=1

28、/2 Output power (3 dB below rated power)PC6501N/PC4801N/PC3301N/PC2001N5 PANEL LAYOUT（） Front Panel（）1 POWER/STAND-BY switch and indicator2 REMOTE indicator3 PROTECTION indicator4 TEMP indicator5 Level meters6 Volume knobs7 Air intakes8 Security cover1 POWER/STAND-BY 、2 REMOTE 3 PROTECTION 4 TEMP 5

29、67吸気口8 Rear Panel（）1 XLR inputs2 MODE switch3 HPF switches4 SPEAKERS jacks5 DATA PORT jacks6 AMP ID switch7 Euroblock connector8 AC inlet (except PC6501N (J)9 GND terminals1 XLR 入力端子2 MODE 3 HPF 4 SPEAKERS 端子5 DATA PORT 端子6 AMP ID 78 AC （PC6501N (J)除）9 GND 端子TEMPPROTECTIONREMOTEPOWER/STAND-BYOFFON/E

30、EEngineCLIP869121518212427-dBAB14121086420161820253035501412108642016182025303550POWER AMPLIFIER-dBABPC 6501N20HzIn case of PC6501N (J)（PC6501N (J)場合）20 Hz20 HzPC6501N/PC4801N/PC3301N/PC2001N6 CIRCUIT BOARD LAYOUT（）IN3/5IN2/5PS 2/2PS 1/2IN4/5IN5/5PAAchPABchIN4/5IN1/5 Front View（正面図） Side View（側面図） T

31、op View（上面図） Side View（側面図） Rear View（背面図）PC6501N/PC4801N/PC3301N/PC2001N7 DIMENSIONS（寸法図）POWER AMPLIFIERPC 6501N480884564643802625303703025Units: mm（単位）PC6501N/PC4801N/PC3301N/PC2001N8 PERFORMANCE GRAPHS（特性図） PC6501N PC3301N PC4801N PC2001NPC6501N110100100010000110100100010000Output PowerWPower con

32、sumptionWPower ConsumptionWMode:STEREOBoth chPC3301NOutput PowerWPower consumptionWPower ConsumptionWMode:STEREOBoth ch1101001000100001101001000PC4801NOutput PowerWPower consumptionWPower ConsumptionWMode:STEREOBoth ch1101001000100001101001000PC2001NOutput PowerWPower consumptionWPower ConsumptionWM

33、ode:STEREOBoth ch1101001000100001101001000PC6501N/PC4801N/PC3301N/PC2001N9 DISASSEMBLY PROCEDURE（分解手順）1.Top Cover (Time required: about 2 minutes)1-1.Remove the nine (9) screws marked 280. The top cover can then be removed. (Fig. 1)2.Rear Assembly (Time required: about 4 minutes)2-1.Remove the top c

34、over. (See Procedure 1.)2-2.Remove the six (6) screws marked 240. The rear assembly can then be removed. (Fig. 2)With PC6501N of the J specification, remove the screw marked 90. (Fig.1)1.（所要時間：約2分）1-1.2809本外、 外。(図1)2.Assy（所要時間：約4分）2-1. 外 。 （1 項参照)2-2.2406本外、 Assy 外。（図2)PC6501N (J)仕向90外。(図1)30: Bind

35、Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) + B 90: Bind Head Screw 4.0X8 MFZN2BL (EG340360) + 小100: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) + B 280: Bonding Tapping Screw-B 4.0X8 MFZN2BL (VR779900) B Fig.1 （図 1）240: Bonding Tapping Screw-B 4.0X8 MFZN2BL (VR779900) B 330: Bind Head Tapp

36、ing Screw-B 3.0X8 MFZN2BL (EP600190) + B Fig.2 （図 2）28028028028010030b30b409030aPS 1/2IN 4/5I/O Rock240240330240PC6501N/PC4801N/PC3301N/PC2001N103.IN 1/5 Circuit Board (Time required: about 5 minutes)3-1.Remove the top cover. (See Procedure 1.)3-2.Remove the rear assembly. (See Procedure 2.)3-3.Remo

37、ve the two (2) screws marked 330 and then remove the SP terminal cover. (Fig. 2)3-4.Remove the one (1) screw marked R70 , two (2) screws marked R80 , four (4) screws marked R90 and four (4) screws marked R100. The IN 1/5 circuit board can then be removed. (Fig. 3)4.IN 4/5 Circuit Board (Time require

38、d: about 5 minutes)4-1.Remove the top cover. (See Procedure 1.)4-2.Remove the rear assembly. (See Procedure 2.)4-3.Remove the four (4) screws marked 30a. The IN 4/5 circuit board can then be removed. (Fig. 1)5.IN 5/5 Circuit Board (Time required: about 3 minutes)5-1.Remove the top cover. (See Proced

39、ure 1.)5-2.Remove the two (2) screws marked R60. The IN 5/5 circuit board can then be removed. (Fig. 3)3.IN 1/5 （所要時間：約5分） 3-1. 外。 (1 項参照)3-2. Ass y 外。 (2 項参照)3-3.3302本外、 外。 (図2)3-4.R70 1 本、 R80 2 本、 R90 4本、 R100 4 本外、 IN1/5 外 。 (図3)4.IN 4/5 （所要時間：約5分）4-1. 外。 (1項参照)4-2. Ass y 外。 (2項参照)4-3.30a4本外、IN4

40、/5 外 。(図1)5.IN 5/5 （所要時間：約3分）5-1. 外。 (1項参照)5-2.R602本外、IN5/5 外 。（図3) R60: Pan Head Screw 2.6X6 MFZN2BL (VC990500) + 小R70: Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) B R80: Bind Head Tapping Screw-B 3.0X12 MFZN2BL (VQ074600) + B R90: Bind Head Tapping Screw-B 2.6X8 MFZN2BL (VB096700) + B R100: F

41、lat Head Tapping 3.0X8 MFZN2BL (EP600790) + 皿 B Fig.3 （図 3）6.Front Panel Assembly (Time required: about 4 minutes)6-1.Remove the three (3) screws marked 210a from the side cover L, three (3) screws marked 210b from the side cover R and two (2) screws marked 220. The front panel assembly can then be

42、removed. (Fig. 4)6.Assy（所要時間：約4分）6-1. 210a3本 R210b 3本外、 220 2本外、 Ass y 外。 (図4)2020R50IN 1/5R90R90R70R100R100 R10R80R60IN 5/5PC6501N/PC4801N/PC3301N/PC2001N11185: Flat Washer 4X9X0.8 MFZN2BL (VP367000) 平座金丸190: Bonding Tapping Screw-B 4.0X8 MFZN2BL (VR779900) B 210: Bonding Tapping Screw-B 4.0X8 MFZN

43、2BL (VR779900) B 220: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) + B Fig.4 （図 4）7.DC Fan (Time required: about 4 minutes)7-1.Remove the top cover. (See Procedure 1.)7-2.Remove the front panel assembly. (See Procedure 6.)7-3.Remove the two (2) screws marked F30 from the DC fan and then remove

44、 the fan. Use the same for both right and left fans. (Fig. 5)8.Power Switch (Time required: about 8 minutes)8-1.Remove the top cover. (See Procedure 1.)8-2.Remove the front panel assembly. (See Procedure 6.)8-3.Remove the DC fans. (See Procedure 7.)8-4.Remove the four (4) screws marked F180 and then

45、 remove the two front covers. (Fig. 5)8-5.Remove the six (6) screws marked F150 and then remove the front panel. (Fig. 6)8-6.Remove the Power switch knob and the two (2) screws marked F40. The power switch (PS 2/2 circuit board mount) can then be removed. (Fig. 6)8-7.Remove the power switch from the

46、 PS 2/2 circuit board.7.DC （所要時間：約 4 分）7-1. 外 。 (1項参照)7-2. Ass y 外 。 (6項参照)7-3.DC F30 2本外、 外 。 左右 同方法外。 (図5)8.（所要時間：約8分）8-1. 外 。 (1項参照)8-2. Ass y 外 。 (6項参照)8-3. DC 外 。 (7項参照)8-4.F180 4 本外、 印刷及 処理 2 所外。 (図5)8-5.F1506本外、 外 。(図6)8-6. 外、 F40 2 本外、 （PS2/2 ） 外 。 (図6)8-7.PS2/2 外 。F30: Bind Head Screw 4.0X3

47、0 MFZN2BL (VT229100) + 小F180: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) + B Fig.5 （図 5）220PS 1/2IN 1/5210b190185210a190Side Cover R(R)Side Cover L (L)185F180F180F30F30F30F30PC 6501NFront Cover（印刷)Front Cover（処理)PC6501N/PC4801N/PC3301N/PC2001N129.IN 2/5 Circuit Board (Time required: about 4

48、minutes)9-1.Remove the top cover. (See Procedure 1.)9-2.Remove the front panel assembly. (See Procedure 6.)9-3.Remove the DC fans. (See Procedure 7.)9-4.Remove the four (4) screws marked F180 and then remove the two front covers. (Fig. 5)9-5.Remove the six (6) screws marked F150 and then remove the

49、front panel. (Fig. 6)9-6.Remove the two (2) screws marked F70. The IN 2/5 circuit board can then be removed. (Fig. 6)10.IN 3/5 Circuit Board (Time required: about 4 minutes)10-1. Remove the top cover. (See Procedure 1.)10-2. Remove the front panel assembly. (See Procedure 6.)10-3. Remove the DC fans

50、. (See Procedure 7.)10-4. Remove the two front covers. (See Step 9-4.)10-5. Remove the front panel. (See Step 9-5.)10-6. Remove the two (2) knobs of attenuation A/B and two (2) hexagonal nuts. The IN 3/5 circuit board can then be removed. (Fig. 6)9.IN 2/5（所要時間：約4分）9-1. 外。 (1項参照)9-2. Ass y 外。 (6項参照)9