Yamaha-T-4-N-Service-Manual电路原理图.pdf

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 PARTS 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: 200612-504000 T5n T4n T3n T5n/T4n/T3n 11 230A: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND 230B: Bonding Tapping Screw-B 4x8 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。 （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.PA 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 four (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 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. 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 196B 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 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 required: 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、INSWT4 （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 Circuit 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. 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) The 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 Head 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 Screw-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. (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) 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.) 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 SP (WJ124000) 小+PAN (Fig. 7) ? ? ? ? （DCAssy） ? ? ? （DCAssy） T5n/T4n/T3n 10 I DISASSEMBLY PROCEDURES （分解手順） 320:Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400) B+BOND (Fig. 1) 1. （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 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、ATTT5 （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, 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 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） ? ? （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） 8-7Remove 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. (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 ATTT4 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 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 rear 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) The CPUT5 circuit board can then be removed. (T5n) (Fig. 10) The CPUT4 circuit board can then be removed. (T4n) (Fig. 10) The CPUT3 circuit board can then be removed. (T3n) (Fig. 10) 9.PST5、CPUT5 （T5n） PST4、CPUT4 （T4n） PST3、CPUT3 （T3n） （所要時間：約20分） 9-1外。 （1項参照） 9-2PA左側外。 （2項参照） 9-3PA右側外。 （3項参照） 9-4Assy外。 （4項参照） 9-5Assy外。 （6項参照） 9-640 12本外。 （Fig. 10） PST5絶縁外。 （T5n）（Fig. 10） PST4絶縁外。 （T4n）（Fig. 10） PST3絶縁外。 （T3n）（Fig. 10） 9-760 4本外。 （Fig. 10） CPUT5外。 （T5n）（Fig. 10） CPUT4外。 （T4n）（Fig. 10） CPUT3外。 （T3n）（Fig. 10） 40:Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300) B+BIND 60:Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300) B+BIND (Fig. 10) 40 60 40 40 40 Insulation Sheet （絶縁） CPUT3 CPUT4 CPUT5 PST3 PST4 PST5 60 40 T5n/T4n/T3n 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ZCEN1 ZCEN2 CSN SDATAI DGND REF DVSS SCLK SDATAO TE1 TE2 TE3 IN2 REF2A REF2B OUT2 AVDD AVSS AVSS AVDD OUT1 REF1B REF1A IN1 Zero-cross control input 1. Select one from four types of zero-cross modes including nonzero cross mode. When changing zero-cross modes during operation, set the system so that it changes at 1 second or more after the rise of CSN signal. Zero-cross control input 2. Select one from four types of zero-cross modes including nonzero cross mode. When changing zero-cross modes during operation, set the system so that it changes at 1 second or more after the rise of CSN signal. Chip select input. Serial data input. Digital ground. Reference voltage output for digital for attaining stabilization, connect this terminal to DVSS terminal through a capacitance of 10 F or higher (CREF). And please do not use this terminal output for the drive purpose of an external circuit. Minus power supply for digital (-6.0 V Typ.). Serial clock input. Serial data output. Serial data are outputted from this terminal when CSN pin is “L” level. This terminal becomes high-impedance state when CSN pin is “H”. Since it is an open drain output pin, pull it up through a resistor to the power supply voltage (to be AVDD or less) of a device to be connected. Do not allow output current of 1.5 mA or over. Test terminal (Pull-down) non connection or connect to DGND terminal. Test terminal (Pull-down) non connection or connect to DGND terminal. Test terminal (Pull-down) non connection or connect to DGND terminal. CH2 analog input. The output impedance of input signal source is used less than 10 k. When avoid the use of this terminal, connect to ground. CH2 analog reference voltage input A connect to ground directly. CH2 analog reference voltage input B connect to ground directly. CH2 analog output. Plus power supply for analog (+6.0 V Typ.). Minus power supply for analog (-6.0 V Typ.). Minus power supply for analog (-6.0 V Typ.). Plus power supply for analog (+6.0 V Typ.). CH1 analog output. CH1 analog reference voltage input B connect to ground directly. CH1 analog reference voltage input A connect to ground directly. CH1 analog input. The output impedance of input signal source is used less than 10 k. When avoid the use of this terminal, connect to ground. PIN No. NAMEI/OFUNCTION YAC526-EZE2 (X5574A00) DIGITAL VOLUMEINT: IC408 I I I I - O - I OD I I I AI AI AI AO - - - - AO AI AI AI Note A: Analog terminal, OD: Open drain output terminal, “L” level means VIL, “H” level means VIH. I LSI PIN DESCRIPTION （LSI端子機能表） T5n/T4n/T3n 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 PE1/TIOC4C/DACK0/AH PE15/TIOC4D/DACK1/IRQOUT Vss PC0/A0 PC1/A1 PC2/A2 PC3/A3 PC4/A4 PC5/A5 PC6/A6 PC7/A7 PC8/A8 PC9/A9 PC10/A10 PC11/A11 PC12/A12 PC13/A13 PC14/A14 PC15/A15 PB0/A16 Vcc PB1/A17 Vss PB2/IRQ0/POE0/RAS PB3/IRQ1/POE1/CASL PB4/IRQ2/POE2/CASH Vss PB5/IRQ3/POE3/RDWR PB6/IRQ4/A18/BACK PB7/IRQ5/A19/BREQ PB8/IRQ6/A20/WAIT PB9/IRQ7/A21/ADTRG Vss PA14/RD WDTOVF PA13/WRH Vcc PA12/WRL Vss PA11/CS1 PA10/CS0 PA9/TCLKD/IRQ3 PA8/TCLKC/IRQ2 PA7/TCLKB/CS3 PA6/TCLKA/CS2 PA5/SCK1/DREQ1/IRQ1 PA4/TXD1 PA3/RXD1 PA2/SCK0/DREQ0/IRQ0 PA1/TXD0 PA0/RXD0 PD15/D15 PD14/D14 PD13/D13 Vss PD12/D12 Port E / MTU I/O / DMA transfer strobe / Address hold Port E / MTU I/O / DMA transfer strobe / Interrupt request output Ground Port C / Address bus Port B / Address bus Power supply Port B / Address bus Ground Port B / Interrupt request / Port output enable / Row address strobe Port B / Interrupt request / Port output enable / Lower column address strobe Port B / Interrupt request / Port output enable / Upper column address strobe Ground Port B / Interrupt request / Port output enable / DRAM read/write Port B / Interrupt request / Address bus / Bus request acknowledge Port B / Interrupt request / Address