Yamaha-PC-9501-N-Service-Manual电路原理图.pdf

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1、SERVICE MANUAL CONTENTS（目次） SPECIFICATIONS（総合仕様）.3/4 PANEL LAYOUT（）.5 CIRCUIT BOARD LAYOUT（）.6 DIMENSIONS（寸法図）.7 PERFORMANCE GRAPHS（特性図）.8 DISASSEMBLY PROCEDURE（分解手順）.9 NOTES ON WIRING（配線上注意）.14/15 LSI PIN DESCRIPTION（LSI 端子機能表）.16 IC BLOCK DIAGRAM（IC 図）.17 CIRCUIT BOARDS（基板図）.19 INSPECTIONS（検査）.28/

2、36 PARTS LIST BLOCK DIAGRAM（） WIRING DIAGRAM（基板結線図） OVERALL CIRCUIT DIAGRAM（総回路図） PA 011767 200412-441000 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. PDF-K006 05.02 POWER AMPLIFIER PC9501N （ECF ： 無塩素系漂白） 使用。 This document is printed on chlorine free (ECF) paper. RadioFans

3、.CN 收音机爱 好者资料库 PC9501N 2 * 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 their service personnel. It has been assumed that basic service procedures inherent to the industry, a

4、nd 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

5、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 n

6、ot constitute authorization certification, 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 departmen

7、ts 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 :

8、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 wo

9、rk 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 applicable) components may also contain traces of chemicals found by the California Health and Welf

10、are 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 SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do

11、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 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

13、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 with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected

14、to the terminal which is marked with the letter L or coloured RED. 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 。 RadioFans.CN 收音机爱 好者资料库 PC9501N 3 SPECIFICATIONS

15、Power output level (Rated power)120 V (U, V, T)/240 V (A)230 V (H, B, W, K, O) 1 kHz, THD+N=1 %8 /STEREO1000 W x 21050 W x 2 4 /STEREO1600 W x 21650 W x 2 8 /BRIDGE3200 W3300 W 20 Hz-20 kHz, THD+N=0.1 %8 /STEREO925 W x 2950 W x 2 4 /STEREO1400 W x 21500 W x 2 8 /BRIDGE2800 W3000 W 1 kHz, 20 mS noncl

16、ip2 /STEREO2300 W x 22300 W x 2 4 /BRIDGE4600 W4600 W Power bandwidth 10 Hz-40 kHz (THD+N=0.5 %) Half power Total harmonic distortion (THD+N) 0.1 % 20 Hz-20 kHz, Half power Frequency responseMAX0 dB RL=8 , Po=1 W,TYP0 dB f=20 Hz-50 kHzMIN1 dB Intermodulation distortion (IMD) 0.1 % 60 Hz:7 kHz, 4:1,

17、Half power Channel separation 70 dBHalf power, RL=8 , 1 kHz, Vol. max., Input 600 shunt Residual noise 70 dBu Vol. min., 20 Hz-20 kHz (DIN AUDIO) SN ratio 106 dB 20 Hz-20 kHz (DIN AUDIO) Damping factor 800 RL=8 , f=1 kHz Sensitivity +9 dBu Vol. max., Rated power into 8 Voltage gain TYP32 dB Vol. max

18、. Maximum input voltageMIN+22 dBu Input impedanceTYP20 k/Balanced, 10 k/Unbalanced ControlsFront panelPOWER switch (ON/OFF) Volume (31 positions) /ch Rear panelMODE switch (STEREO/BRIDGE/PARALLEL) HPF switch (ON/OFF) /ch fc=20 Hz 12 dB/octave DIP switch (6P) ConnectorsInputXLR-3-31 type /ch Eurobloc

19、k connector (balance) /ch OutputSPEKON /ch, 5-way binding posts NetworkRJ45 x 2 PowerAC inlet IndicatorsPOWER/STAND-BYGreen/Orange PROTECTIONRed TEMPRed (heatsink temp85C) REMOTEGreen Level meters10 points LED meter /ch Load protectionPOWER switch ON muting, DC detection Amp. protectionTemp. detecti

20、on (heatsink temp90C), VI limiter (RL1 ) LimiterComp.: THD0.5 % CoolingDual variable-speed fan Power requirementsU, V, T120 V, 60 Hz H, B, W, K, O230 V, 50/60 Hz A240 V, 50/60 Hz Power consumptionIdling55 W Output power, 4 750 W (U, V, T)/1000 W (A)1100 W (H, B, W, K, O) Dimensions (W x H x D)480 x

21、88 x 456 mm Weight13 kg AccessoriesPower cord, Security cover, Owners manual, 3-pin Euroblock connector x 2 0 dBu=0.775 Vrms, Half power=1/2 Output power (3 dB below rated power) PC9501N 4 総合仕様 出力 1kHz、 THD N 18/STEREO1000W 2 4/STEREO1500W 2 8/BRIDGE3000W 20Hz 20kHz、 THD N 0.18/STEREO900W 2 4/STEREO

22、1300W 2 8/BRIDGE2600W 1kHz、 20mS nonclip2/STEREO2200W 2 4/BRIDGE4400W 出力帯域幅 10Hz 40kHz （THD N=0.5） Half power 全高調波帯域 （THD N） 0.1 20Hz 20kHz、 Half power 周波数特性MAX0dB RL 8、 Po 1W、TYP0dB f 20Hz 50kHzMIN 1dB 混変調歪率 （IMD） 0.1 60Hz ： 7kHz、 4 ： 1、 Half power 70dBHalf power、 RL 8、 1kHz、 最大、 入力 600 残留 70dBu 最小

23、、 20Hz 20kHz （DIN AUDIO） SN 比 106dB 20Hz 20kHz （DIN AUDIO） 800 RL 8、 f 1kHz 入力感度 9dBu 最大、 Rated power ： 8 TYP32dB 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/octave DIP （6P） 入力XLR-3-31 （） 出力、 5 RJ45 2 POWER/STAND-BY緑 / PROTECT

24、ION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55W 規定出力、 4950W 最大外形寸法 （W H D）480 88 456mm 重量13kg 付属品 、 取扱説明書、 3 2 0 dBu=0.775 Vrms, Half power=1/2 Output power (3 dB below rated power) PC9501N 5 PANEL LAYOUT（） Front Panel（） 1 POWER/

25、STAND-BY switch and indicator 2 REMOTE indicator 3 PROTECTION indicator 4 TEMP indicator 5 Level meters 6 Volume knobs 7 Air intakes 8 Security cover 1 POWER/STAND-BY 、 2 REMOTE 3 PROTECTION 4 TEMP 5 6 7吸気口 8 Rear Panel（） 1 XLR inputs 2 MODE switch 3 HPF switches 4 SPEAKERS jacks 5 DATA PORT jacks 6

26、 AMP ID switch 7 Euroblock connector 8 AC inlet (except PC9501N (J) 9 GND terminals 1 XLR 入力端子 2 MODE 3 HPF 4 SPEAKERS 端子 5 DATA PORT 端子 6 AMP ID 7 8 AC （PC9501N (J)除） 9 GND 端子 TEMP PROTECTION REMOTE POWER/STAND-BY OFFON/ EEEngine CLIP 8 6 9 12 15 18 21 24 27 -dB AB 14 12 10 8 6 4 2 0 16 18 20 25 30

27、 35 50 14 12 10 8 6 4 2 0 16 18 20 25 30 35 50 POWER AMPLIFIER -dB AB PC 9501N 20Hz In case of PC9501N (J) （PC9501N (J)場合） 20 Hz20 Hz PC9501N 6 CIRCUIT BOARD LAYOUT（） IN10 3/5IN10 2/5PS10 2/2 PS10 1/2 IN10 4/5 IN10 5/5 PA10 Ach PA10 Bch IN10 4/5 IN10 1/5 Front View（正面図） Side View （側面図） Top View （上面図

28、） Side View （側面図） Rear View （背面図） PC9501N 7 DIMENSIONS（寸法図） POWER AMPLIFIERPC 9501N 480 88 456 46 4 38026 25303703025 Units: mm （単位） PC9501N 8 PERFORMANCE GRAPHS（特性図） 1 10 100 1000 10000 110100100010000 Output PowerW Power consumptionW Power ConsumptionW Mode:STEREO Both ch PC9501N 9 DISASSEMBLY PRO

29、CEDURE（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 cover. (See Procedure 1.) 2-2.Remove the six (6) screws marked 240. The rear assembly c

30、an then be removed. (Fig. 2) With PC9501N 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) PC9501N (J)仕向90外。(図1) 30: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) + B 90: Bind Head Screw 4.0X8

31、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 Tapping Screw-B 3.0X8 MFZN2BL (EP600190) + B Fig.2 （図 2） 280280 280 280 100 30

32、b 30b 40 90 30a PS10 1/2 IN10 4/5 I/O rock 240240 330 240 PC9501N 10 3.IN10 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.Remove the two (2) screws marked 330 and then remove the SP terminal cover.

33、 (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 IN10 1/5 circuit board can then be removed. (Fig. 3) 4.IN10 4/5 Circuit Board (Time required: about 5 minutes) 4-1.Remove the top cover. (See Procedure 1.)

34、4-2.Remove the rear assembly. (See Procedure 2.) 4-3.Remove the four (4) screws marked 30a. The IN10 4/5 circuit board can then be removed. (Fig. 1) 5.IN10 5/5 Circuit Board (Time required: about 3 minutes) 5-1.Remove the top cover. (See Procedure 1.) 5-2.Remove the two (2) screws marked R60. The IN

35、10 5/5 circuit board can then be removed. (Fig. 3) 3.IN10 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、 R1004 本外、 IN10 1/5 外 。 (図3) 4.IN10 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、 IN10 4/5 外。 (図1) 5.IN10 5/5 （所要時間：約3分）

36、5-1. 外。 (1項参照) 5-2.R602本外、 IN10 5/5 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: Flat Head Tapping 3.0X8

37、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 removed. (Fig. 4) 6.A

38、ssy（所要時間：約4分） 6-1. 210a3本 R 210b 3本外、 220 2本外、 Ass y 外。 (図4) 2020R50 IN10 1/5 R90R90R70R100R100 R10R80R60 IN10 5/5 PC9501N 11 185: 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 MFZN2BL (VR779900) B 220: Bind Hea

39、d 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 the fan. Use the same for

40、 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 remove the two front

41、 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 (PS10 2/2 circuit board mount) can then be removed. (Fig. 6) 8-7.Remove the power switch from the PS10 2/2 circui

42、t 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、 （PS10 2/2 ） 外 。 (図6) 8-7.PS10 2/2 外。 F30: Bind Head Screw

43、4.0X30 MFZN2BL (VT229100) + 小 F180: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) + B Fig.5 （図 5） 220 PS10 1/2 IN10 1/5 210b 190 185 210a 190 Side Cover R (R) Side Cover L (L) 185 F180 F180F30F30 F30F30 PC 9501N Front Cover（印刷) Front Cover（処理) PC9501N 12 9.IN10 2/5 Circuit Board (Time required:

44、 about 4 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 th

45、en remove the front panel. (Fig. 6) 9-6.Remove the two (2) screws marked F70. The IN10 2/5 circuit board can then be removed. (Fig. 6) 10.IN10 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.) 1

46、0-3. Remove the DC fans. (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) attenuation knobs A/B and two (2) hexagonal nuts. The IN10 3/5 circuit board can then be removed. (Fig. 6) 9.IN10 2/5（所要時間：約4分） 9-1. 外

47、。 (1項参照) 9-2. Ass y 外。 (6項参照) 9-3.DC 外 。 (7項参照) 9-4. F180 4本外、 印刷及 処理 2 所外。 (図5) 9-5.F150 6本外、 外。 (図6) 9-6.F702本外、 IN10 2/5 外 。 (図6) 10.IN10 3/5 （所要時間：約4分） 10-1. 外。 (1項参照) 10-2. Ass y 外。 (6項参照) 10-3. DC 外 。 (7項参照) 10-4. 印刷及 処理 2 所 外。 (9-4.項参照) 10-5. 外。 (9-5.項参照) 10-6. A/B 2 VR六角 2 外、 IN10 3/5 外。 (図6) F40: Bind Head Screw 3.0X6 MFZN2BL (EG330360) 小 F70: Bind Head Tapping Screw-B 3.0X8 M