Yamaha-T4N-pwr-sm电路图 维修手册.pdf

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1、SERVICE MANUAL SPECIFICATIONS （総合仕様） .3/5 DIMENSIONS （寸法図）.7 PANEL LAYOUT （） .8 CIRCUIT BOARD LAYOUT （）.9 DISASSEMBLY PROCEDURES （分解手順） .10 LSI PIN DESCRIPTION （LSI端子機能表） .18 IC BLOCK DIAGRAM （IC図） .20 CIRCUIT BOARDS （基板図） .23 INSPECTIONS （検査） .36/45 PST CIRCUIT BOARD REPAIR GUIDE （PST故障修理） .54/59 P

2、ARTS LIST IC & DIODE FIGURES （外形図） BLOCK DIAGRAM （） CIRCUIT DIAGRAM （回路図） I CONTENTS （目次） PA011844 Copyright (c) Yamaha Corporation. All rights reserved. 06.12 HAMAMATSU, JAPAN （ECF：無塩素系漂白）使用。 This document is printed on chlorine free (ECF) paper. T5n: 200612-682500 T4n: 200612-577500 T3n: 200612-50

3、4000 T5n T4n T3n RadioFans.CN 收音机爱 好者资料库 T5n/T4n/T3n 2 IWARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. 印部品、安全維持重要部品。交換場合、安全必指定部品使用。 IMPORTANT NOTICE This manual has been provided for the use of au

4、thorized 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

5、 and safety procedures when servicing this product may result in personal injury, destruc- tion 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 Ret

6、ailer 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 provid

7、ed is believed 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 specifica- tion are subject to change without n

8、otice 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 (

9、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 NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/el

10、ectronic 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 defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS

11、 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 hand

12、s 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 with the following code: GREEN-AND-YELLOW:EARTH BLUE:NEUTRAL BROWN:LIVE As the colours of the wires in

13、 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 color

14、ed GREEN or colored 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. RadioFans.CN 收音机爱 好者资料库 T

15、5n/T4n/T3n 3 ISPECIFICATIONS RadioFans.CN 收音机爱 好者资料库 T5n/T4n/T3n 4 T5n/T4n/T3n 5 総合仕様 T5n/T4n/T3n 6 T5n/T4n/T3n 7 I DIMENSIONS （寸法図） Unit: mm 単位：mm 88 426.9 480 35359393224 4.416.5 38026 T5n/T4n/T3n 8 Rear Panel （） I PANEL LAYOUT （） 1 TEMP indicator 2 SIGNAL indicator 3 CLIP indicator 4 Screw holes

16、for handles 5 Air intakes 6 POWER switch and indicator 7 REMOTE indicator 8 PROTECTION indicator 9 MUTE indicator 0 Volume control knobs 1322 068497554 45 21 687 3 1 Mode switch 2 GAIN switch 3 SPEAKERS jacks 4 DATA PORT jacks 5 AMP ID switch 6 Input connectors 7 AC IN connector 8 Ground screw 1 TEM

17、P 2 SIGNAL 3 CLIP 4 用穴 5 吸気口 6 POWER / 7 REMOTE 8 PROTECTION 9 MUTE 0 1 2 GAIN 3 SPEAKERS 端子 4 DATA PORT 端子 5 AMP ID 6 入力端子 7 電源 8 用 Front Panel （） T5n/T4n/T3n 9 I CIRCUIT BOARD LAYOUT （） Rear Panel（） INT5 INT4 INT3 CPUT5 CPUT4 CPUT3 INSWT5 INSWT4 INSWT3 INSWT5 INSWT4 INSWT3 PAT5 PAT5 PAT3 FPT5 FPT5

18、 FPT3 FPT5 FPT5 FPT3 PST5 PST4 PST3 PAT5 PAT5 PAT3 ATTT5 ATTT4 ATTT3 PSWT5 PSWT4 PSWT3 Front Panel（） T5n model T4n model T3n model Top （上側） Bottom （下側） Top （上側） Bottom （下側） Rear Front T5n/T4n/T3n 10 I DISASSEMBLY PROCEDURES （分解手順） 320:Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND (Fig. 1) 1.

19、 （所要時間：約3分） 1-1320 9本外、外。 （Fig. 1） 1.Top Cover (Time required: about 3 minutes) 1-1Remove the nine (9) screws marked 320. The top cover can then be removed. (Fig. 1) 320 Top cover （） 320 320320 T5n/T4n/T3n 11 230A: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND 230B: Bonding Tapping Screw-B 4

20、x8 MFZN2B3 (WE999400) B+BOND 250A: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND 250B: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND 280A: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND 280B: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND (Fig. 2) 2.PA左側 （所要時間：約6分） 2-1外

21、。 （1項参照） 2-2230A 3本、 250A 3本、 280A 2 本外、PA （、 付） 外。 （Fig. 2） 2-3196A 4本、 195A 4個外 。 （Fig. 3） 2-4190A 6本、 180A 6個外、PA L （付） 分離 。 （Fig. 3） 3.PA右側 （所要時間：約6分） 3-1外。 （1項参照） 3-2230B 3本、 250B 3本、 280B 2 本外、PA （R、 付） 外。 （Fig. 2） 3-3196B 4本、 195B 4個外 。 （Fig. 3） 3-4190B 6本、 180B 6個外、PA R （付） 分離 。 （Fig. 3） 2.P

22、A unit on the left side (Time required: about 6 minutes) 2-1Remove the top cover. (See Procedure 1.) 2-2Remove the three (3) screws marked 230A, three (3) screws marked 250A and two (2) screws marked 280A. The PA unit and side cover L (with rear angle) can then be removed. (Fig. 2) 2-3Remove the fou

23、r (4) screws marked 196A and four (4) screw covers marked 195A. (Fig. 3) 2-4Remove the six (6) screws marked 190A and six (6) washers marked 180A. The PA unit and side cover L (with rear angle) can then be separated. (Fig. 3) 3.PA unit on the right side (Time required: about 6 minutes) 3-1Remove the

24、 top cover. (See Procedure 1.) 3-2Remove the three (3) screws marked 230B, three (3) screws marked 250B and two (2) screws marked 280B. The PA unit and side cover L (with rear angle) can then be removed. (Fig. 2) 3-3Remove the four (4) screws marked 196B and four (4) screw covers marked 195B. (Fig.

25、3) 3-4Remove the six (6) screws marked 190B and six (6) washers marked 180B. The PA unit and side cover R (with rear angle) can then be separated. (Fig. 3) PA unit （PA） Side cover L （L） Side cover R （R） Rear angle （） Rear angle （） 250A 230A230B 280B280A 250B T5n/T4n/T3n 12 190B 190B 180B 195B 195B 1

26、96B PA unit （PA） Rear angle （） Side cover R （R） 180B 190A 190A 180A 195A 195A 196A Rear angle （） Side cover L （L） 180A 180A: Washer 4x9x0.8 MFZN2W3 (WF578000) 平座丸 180B: Washer 4x9x0.8 MFZN2W3 (WF578000) 平座丸 190A: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND 190B: Bonding Tapping Screw-B 4x8

27、 MFZN2B3 (WE999400) B+BOND 195A: Screw Cover (WJ618300) 195B: Screw Cover (WJ618300) 196A: Bind Head Tapping Screw-B 3x8 MFZN2B3 (WE774400) B+BIND 196B: Bind Head Tapping Screw-B 3x8 MFZN2B3 (WE774400) B+BIND (Fig. 3) 4.Assy （所要時間：約5分） 4-1外。 （1項参照） 4-2280 6本外、Assy外。 （Fig. 4） 4.Rear Assembly (Time re

28、quired: about 5 minutes) 4-1Remove the top cover. (See Procedure 1.) 4-2Remove the six (6) screws marked 280. The rear as- sembly can then be removed. (Fig. 4) 280:Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND Rear Assembly （Assy） 280 280280 (Fig. 4) T5n/T4n/T3n 13 5.INT5、INSWT5 （T5n） INT4、I

29、NSWT4 （T4n） INT3、INSWT3 （T3n） （所要時間：約10分） 5-1外。 （1項参照） 5-2Assy外。 （4項参照） 5-3370 2本外、SP外 。 （Fig. 5） 5-470 4本、 80 4本、 90 2本、 100 外。 （Fig. 5） INT5外。 （T5n）（Fig. 5） INT4外。 （T4n）（Fig. 5） INT3外。 （T3n）（Fig. 5） 5-530 2本外。 （Fig. 5） INSWT5外。 （T5n）（Fig. 5） INSWT4外。 （T4n）（Fig. 5） INSWT3外。 （T3n）（Fig. 5） 5.INT5 Cir

30、cuit Board, INSWT5 Circuit Board (T5n) INT4 Circuit Board, INSWT4 Circuit Board (T4n) INT3 Circuit Board, INSWT3 Circuit Board (T3n) (Time required: about 10 minutes) 5-1Remove the top cover. (See Procedure 1.) 5-2Remove the rear assembly. (See Procedure 4.) 5-3Remove the two (2) screws marked 370.

31、The speaker terminal cover can then be removed. (Fig. 5) 5-4Remove the four (4) screws marked 70, four (4) screws marked 80, two (2) screws marked 90 and screw marked 100. (Fig. 5) The INT5 circuit board can then be removed. (T5n) (Fig. 5) The INT4 circuit board can then be removed. (T4n) (Fig. 5) T

32、he INT3 circuit board can then be removed. (T3n) (Fig. 5) 5-5Remove the two (2) screws marked 30. (Fig. 5) The INSWT5 circuit board can then be removed. (T5n) (Fig. 5) The INSWT4 circuit board can then be removed. (T4n) (Fig. 5) The INSWT3 circuit board can then be removed. (T3n) (Fig. 5) 30:Pan Hea

33、d Screw 2.6x6 MFZN2B3 (WE986400) 小+PAN 70:Bind Head Tapping Screw-B 2.6x8 MFZN2B3 (WE961700) B+BIND 80:Flat Head Tapping Screw-B 3x8 MFZN2B3 (WF266800) B+FLAT 90:Bind Head Tapping Screw-B 3x12 MFZN2B3 (WE998100) B+BIND 100:Bonding Tapping Screw-B 3x8 MFZN2B3 (WE774100) B+BOND 370:Bind Head Tapping S

34、crew-B 3x8 MFZN2B3 (WE774400) B+BIND (Fig. 5) Speaker Terminal Cover （SP） 90 7070308037080 INT3 INT4 INT5 INSWT3 INSWT4 INSWT5 100 T5n/T4n/T3n 14 6.Assy （所要時間：約5分） 6-1外。 （1項参照） 6-2250 6本 （右側3本、左側3本） 、 260 2本 外、Assy外。 （Fig. 6） 6.Front Assembly (Time required: about 5 minutes) 6-1Remove the top cover.

35、 (See Procedure 1.) 6-2Remove the six (6) screws marked 250 (3 on the left and 3 on the right) and two (2) screws marked 260. The front assembly can then be removed. (Fig. 6) 250:Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND 260:Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300) B+BIND (Fig. 6

36、) 250260250 Front Assembly （Assy） 7.DCAssy （所要時間：約7分） 7-1外。 （1項参照） 7-2Assy外。 （6項参照） 7-330A 2本外、DCAssy （左側） 外 。 （Fig. 7） 7-430B 2本外、DCAssy （右側） 外 。 （Fig. 7） 7.DC Fan Assembly (Time required: about 7 minutes) 7-1Remove the top cover. (See Procedure 1.) 7-2Remove the front assembly. (See Procedure 6.)

37、7-3Remove the two (2) screws marked 30A. The DC fan assembly on the left side can then be removed. (Fig. 7) 7-4Remove the two (2) screws marked 30B. The DC fan assembly on the right side can then be removed. (Fig. 7) 30A:Pan Head Screw 4x45 MFZN2W3 SP (WJ124000) 小+PAN 30B:Pan Head Screw 4x45 MFZN2W3

38、 SP (WJ124000) 小+PAN (Fig. 7) ? ? ? ? （DCAssy） ? ? ? （DCAssy） T5n/T4n/T3n 15 160:Flat Head Screw 4x8 MFZN2B3 (WE980300) 小+FLAT 200A: Bind Head Screw 4x10 MFZN2B3 (WE980400) 小+BIND 200B: Bind Head Screw 4x10 MFZN2B3 (WE980400) 小+BIND (Fig. 8) ? ? ? ? ? ? （） ? （） ? （） ? ? （） ? （） ? （） 8.PSWT5、FPT5、ATT

39、T5 （T5n） PSWT4、FPT4、ATTT4 （T4n） PSWT3、FPT3、ATTT3 （T3n） （所要時間：約15分） 8-1外。 （1項参照） 8-2Assy外。 （6項参照） 8-3200A 2本外、左側 外。 （Fig. 8） 8-4200B 2本外、右側 外。 （Fig. 8） 8-52個外。 （Fig. 8） 8-6160 6本外、外。 （Fig. 8） 8.PSWT5 Circuit Board, FPT5 Circuit Board, ATTT5 Circuit Board (T5n) PSWT4 Circuit Board, FPT4 Circuit Board,

40、 ATTT4 Circuit Board (T4n) PSWT3 Circuit Board, FPT3 Circuit Board, ATTT3 Circuit Board (T3n) (Time required: about 15 minutes) 8-1Remove the top cover. (See Procedure 1.) 8-2Remove the front assembly. (See Procedure 6.) 8-3Remove the two (2) screws marked 200A. The grill and filter on the left side

41、 can then be removed. (Fig. 8) 8-4Remove the two (2) screws marked 200B. The grill and filter on the left side can then be removed. (Fig. 8) 8-5Remove the two (2) knobs. (Fig. 8) 8-6Remove the six (6) screws marked 160. The front panel can then be removed. (Fig. 8) T5n/T4n/T3n 16 ? ? ? ? ? （PSW） ? ?

42、 （6角） ? ? ? ? ? ? ? ? ? 8-7PSW外。 （Fig. 9） 8-870 2本外。 （Fig. 9） PSWT5外。 （T5n）（Fig. 9） PSWT4外。 （T4n）（Fig. 9） PSWT3外。 （T3n）（Fig. 9） 8-9120 2本外。 （Fig. 9） FPT5外。 （T5n）（Fig. 9） FPT4外。 （T4n）（Fig. 9） FPT3外。 （T3n）（Fig. 9） 8-106角2個外。 （Fig. 9） ATTT5外。 （T5n）（Fig. 9） ATTT4外。 （T4n）（Fig. 9） ATTT3外。 （T3n）（Fig. 9） 8-

43、7Remove the PSW knob. (Fig. 9) 8-8Remove the two (2) screws marked 70. (Fig. 9) The PSWT5 circuit board can then be removed. (T5n) (Fig. 9) The PSWT4 circuit board can then be removed. (T4n) (Fig. 9) The PSWT3 circuit board can then be removed. (T3n) (Fig. 9) 8-9Remove the two (2) screws marked 120.

44、 (Fig. 9) The FPT5 circuit board can then be removed. (T5n) (Fig. 9) The FPT4 circuit board can then be removed. (T4n) (Fig. 9) The FPT3 circuit board can then be removed. (T3n) (Fig. 9) 8-10Remove the two (2) hexagonal nuts. (Fig. 9) The ATTT5 circuit board can then be removed. (T5n) (Fig. 9) The A

45、TTT4 circuit board can then be removed. (T4n) (Fig. 9) The ATTT3 circuit board can then be removed. (T3n) (Fig. 9) 70:Bind Head Screw 3x6 MFZN2W3 (WE774000) 小+BIND 120:Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300) B+BIND (Fig. 9) T5n/T4n/T3n 17 9.PST5 Circuit Board, CPUT5 Circuit Board (T5n) PST4

46、 Circuit Board, CPUT4 Circuit Board (T4n) PST3 Circuit Board, CPUT3 Circuit Board (T3n) (Time required: about 20 minutes) 9-1Remove the top cover. (See Procedure 1.) 9-2Remove the PA unit on the left side. (See Procedure 2.) 9-3Remove the PA unit on the right side. (See Procedure 3.) 9-4Remove the r

47、ear assembly. (See Procedure 4.) 9-5Remove the front assembly. (See Procedure 6.) 9-6Remove the twelve (12) screws marked 40. (Fig. 10) The PST5 circuit board and insulation sheet can then be removed. (T5n) (Fig. 10) The PST4 circuit board and insulation sheet can then be removed. (T4n) (Fig. 10) The PST3 circuit board and insulation sheet can then be removed. (T3n) (Fig. 10) 9-7Remove the four (4) screws marked 60. (Fig. 10