Teac-AGH600-rec-sch维修电路原理图.pdf

Wiring Diagram 2 Block Diagram 3 Level Diagram 4 MAIN PCB (1/5) Input July 2009 AG-H600 SeriesSCHEMATIC DIAGRAMS CONTENTS RadioFans.CN 收音机爱 好者资料库 A B C D E F 123456789 2 WIRING DIAGRAM AG-H600 Series Stereo Receiver AG-H600/AG-H600NT/AG-H600DNT 1 st Issue; July 2009 P103 P102 P100 P101 E95340200A PCB ASSY,CPU PLA G P902 P901 E95347600A PCB ASSY,F/W-UD PLA G P504 E95347700A PCB ASSY,AMP PWR PLA G P702 P701 P700 J700 P503 P505 P204 J200J201 J401 P401 P403 P202P201 P501 230V 120V 100V P402 E01473200B ELCTRN RAY DSPL,M162SD07 USA USA JPN JPN EUR, UK EUR, UK USA, EUR, UK, USA, EUR, UK, JPN, USA EUR, UK E01464800C TRANS,POWER PLA ALL G T700 100/120V JPA/US T701 230V EUR T700 T700 (100/120V) : AG-H600DNT : EUR, UK T701 (230V) : T701 E95340130A USA PCB ASSY, AMP PLA-120N G E95340160A EUR, UK PCB ASSY, AMP PLA-230N G E95340120A JPN PCB ASSY, AMP PLA-120 G E95340400A PCB ASSY,POWER SW PLA G P970 SW970 E95340300A PCB ASSY,HP PLA G P950 E0126550 SHORT PLUG, 2.54MM6.00PENG P500P502 J400 P400 P200 LAN DAB E01473300C TUNER,DAB FS2026-WB-06 G AC INLET AUX OUT AUX IN CD PHONO SYSTEM AM FM WLAN E01466900A TUNER,MB114MA1-23 E G E01515200B FLAT CABLE,40*120AD0.5 G E01479800B FLAT CABLE, 17*70AD1.25 G SPK L P203 SPK R iPod E01474200A HARN ASSY,PLA 101-VFD G EUR-DNT EUR-NT EUR JPN USA USA-NT P103 E01473900A HARN ASSY,PLA 700-970 G E01474100A HARN ASSY,PLA 500/2-B1/2 E01474100A HARN ASSY,PLA 500/2-B1/2 P701 230V 120V 100V E01518100A HARN ASSY,6P EUR G P701 230V 120V 100V P701 230V 120V 100V E01517000A HARN ASSY,PLC 101-901 G E01498500B COAX CABLE, F-CONNECTOR G E01473800A COAX CABLE,SMA-SMA PLA G Inserted to P400 CN on AMP PCBA E01473300C TUNER,DAB FS2026-WB-06 G (INTERNET RADIO) (INTERNET RADIO) AM FM WLAN E01467100A TUNER,MB014MA0-DNS U G E01479900B FLAT CABLE, 15*70AD1.25 G E01473800A COAX CABLE,SMA-SMA PLA G E01518000A HARN ASSY,VSEL 6P T/C G E01517900A HARN ASSY,VSEL 6P JPN G AG-H600NT : EUR AG-H600DNT : EUR, UK AG-600NT : EUR AG-H600NT : USA AG-H600 : JPN AG-H600NT : USA AG-H600 : JPN AG-H600NT : USA E01467000A TUNER,MB018MA1-DNS J G Inserted to P400 CN on AMP PCBA RadioFans.CN 收音机爱 好者资料库 A B C D E F 123456789 3 BLOCK DIAGRAM AG-H600 Series Stereo Receiver AG-H600/AG-H600NT/AG-H600DNT 1 st Issue; July 2009 SOURCETONE DIRECTTUNING MEMORYMENU VOLUME/ SET MULTIJOG/ ENTER AC INLET Rotary Enc Rotary Enc VFD 16c harac torx2 IR DAB MODULE venic e6 FS2026 (INTERNET RADIO) Ethenet WiFi anntena MAC/PHY FM/AM TUNER MODULE FM Fc onnec tor AM anntena iPod PHONO in RCA(White) RCA(Red) CD in RCA(White) RCA(Red) AUX RCA(White) RCA(Red) JAE 18pin HEADPHONE 6.3 JACK Rc h Lc h SP Terminal (Bl ac k ) SP Terminal (Bl ac k ) SP Terminal (Red) RCA(White) RCA(Red) AUX out TONE DIRECT AC LINE FILTER VOLT SELECT POWER SW POWER RELAY SYSTEM SUB TRANS MAIN TRANS 100/120V/230 Digital Amp IRS2092 16.9344MHz E VOL 25.0MHz DAB anntena TONE CONT LowMidHigh Fuse REGULATOR Bridge Pol y mer PTC Bridge Pol y mer PTC D+5V B+5V CPU+5V Bridge Pol y mer PTC +12V Bridge Pol y mer PTC B+ B- REGULATOR REGULATOR VAA VSS SELECTOR Digital Amp IRS2092 SP Terminal (Red) -12V Update Connec tor 8P PH SYSTEM in JPN, USA : 100/120V EUR, UK : 230V JPN : FM MODE EUR, UK : INFO/RDS USA : INFO USA, EUR, UK EUR, UK A B C D E F 123456789 4 LEVEL DIAGRAM AG-H600 Series Stereo Receiver AG-H600/AG-H600NT/AG-H600DNT 1 st Issue; July 2009 CD,AUX +6dBV(2Vrms) iPod -4.5dBV(0.6Vrms) Inernet Radio -3.5dBV(0.66Vrms) FM +5.5dBV(5.5Vrms) AM -4.5dBV(0.6Vrms) Phono -48dBV(4mVrms) Sel ec ter VOL 0-88dB TONE 12dB +19.6dB CD,AUX +6dBV(2Vrms) FM +5.5dBV(5.5Vrms) AM,iPod -4.5dBV(0.6Vrms) Phono -48dBV(4mVrms) -12dB +12dB +4.6dBV +27.8dBV -15dBV +4.6dBV +6dBV AMP +23.2dB Tone Direc t SPK Out SPK Out 75W/8 +28dBV(24.5Vrms) -21dB -88dB -dB 0dB 0.5dB 10.5dB 9.5dB 10.5dB 10.5dB -82dBV +19.6dB +23.2dB Inernet Radio -3.5dBV(0.66Vrms) CD,AUX +6dBV(2Vrms) iPod -4.5dBV(0.6Vrms) DAB -3.5dBV(0.66Vrms) FM +5.5dBV(5.5Vrms) AM -4.5dBV(0.6Vrms) Phono -48dBV(4mVrms) Sel ec ter VOL 0-88dB TONE 12dB +19.6dB CD,AUX +6dBV(2Vrms) DAB -3.5dBV(0.66Vrms) FM +5.5dBV(5.5Vrms) AM,iPod -4.5dBV(0.6Vrms) Phono -48dBV(4mVrms) -12dB +12dB +4.6dBV +27.8dBV -15dBV +4.6dBV +6dBV AMP +23.2dB Tone Direc t SPK Out SPK Out 75W/8 +28dBV(24.5Vrms) -21dB -88dB -dB 0dB 0.5dB 10.5dB 9.5dB 10.5dB 10.5dB -82dBV +19.6dB +23.2dB Inernet Radio Inernet Radio CD,AUX +6dBV(2Vrms) iPod -4.5dBV(0.6Vrms) FM +5.5dBV(5.5Vrms) AM -4.5dBV(0.6Vrms) Phono -48dBV(4mVrms) Sel ec ter VOL 0-88dB TONE 12dB +19.6dB CD,AUX +6dBV(2Vrms) FM +5.5dBV(5.5Vrms) AM,iPod -4.5dBV(0.6Vrms) Phono -48dBV(4mVrms) -12dB +12dB +4.6dBV +27.8dBV -15dBV +4.6dBV +6dBV AMP +23.2dB Tone Direc t SPK Out SPK Out 75W/8 +28dBV(24.5Vrms) -21dB -88dB -dB 0dB 0.5dB 10.5dB 10.5dB 10.5dB -82dBV +19.6dB +23.2dB AG- H600NT USA AG- H600NT/ DNT EUR, UK AG- H600NT EUR AG- H600 JPN 5 A B C D E F 123456789 SCHEMATIC DIAGRAM AG-H600 Series Stereo Receiver AG-H600/AG-H600NT/AG-H600DNT 1 st Issue; July 2009 MAIN PCB (1/5) Input July 2009 MAIN PCB (2/5) Sel ec ter AGND AGND -12V +12V AGND AGND AGND AGND -12V AGND +12V AGND -12V +12V AGND AGND -12V +12V AGND AGND +12V AGND -12V AGND AGND AGNDAGNDAGND AGND AGND AGND -12V AGND AGNDAGND -12V D+5V AGND AGND +12V -12V +12V AGND +12V AGND-12V AGND -12V AGND AGND TONE_DATA TONE_CLK CS_TONE CS_VOL VOL_DATA VOL_CLK DAB_R IPOD_L FM_R PHONO_L SW1_CLK FM_L PHONO_R AM_R AUXIN_L SW1_DATA DAB_L CD_R CS_SW1 IPOD_R CD_L AUXIN_R AM_L AUXOUT_L HP_SW MUTE_EXT2 MUTE_EXT1 DIRECT_SW PAMP_R PAMP_L AUXOUT_R (3/5) (1/5) (1/5) (3/5) (1/5) (3/5) (1/5) (3/5) (3/5) HEAD PHONE PCB (3/5) (3/5) (4/5) (4/5) (3/5) (3/5) (3/5) (3/5) (3/5) (3/5) (1/5) (1/5) (1/5) (1/5) (1/5) (1/5) (1/5) (1/5) (1/5) (1/5) (1/5) (1/5) R380 4.7k R380 4.7k R267 10k R267 10k C345 33u/25V C345 33u/25V C314NMC314NM R46147kR46147k R313 1k R313 1k C476 100p/50V C476 100p/50V R363 51 R363 51 R471 10 R471 10 C344 1000p/50V C344 1000p/50V C3592200pC3592200p R323 1k R323 1k C32422p/50VC32422p/50V C3620.033uC3620.033u R482 12k R482 12k R381 4.7k R381 4.7k R46247kR46247k R477 150 0.5W R477 150 0.5W R3054.7kR3054.7k R332 9.1k R332 9.1k C482 1000p/50V C482 1000p/50V TP217TP217 V+7V R474 2.2 R474 2.2 R46347kR46347k C35610u/50VC35610u/50V R331 1k R331 1k D301 UDZS6.8B D301 UDZS6.8B C471 1000p/50V C471 1000p/50V R328 3.9k R328 3.9k R370 47 R370 47 R475 3.3 R475 3.3 R3463.9kR3463.9k R46447kR46447k C332 33u/25V C332 33u/25V C367 10u/50V C367 10u/50V C388 33u/25V C388 33u/25V C379 33u/25V C379 33u/25V R46647kR46647k C472 1000p/50V C472 1000p/50V U222 TL431IPK U222 TL431IPK 12 3 R4834.7kR4834.7k R371 47 R371 47 D303 UDZS6.8B D303 UDZS6.8B R473 2.2 R473 2.2 C319 0.01u/50V C319 0.01u/50V R490 47k R490 47k R30712kR30712k R374 47k R374 47k C3644700pC3644700p C3710.1uC3710.1u R362 51 R362 51 C47822p/50VC47822p/50V R3024.7kR3024.7k D302 UDZS6.8B D302 UDZS6.8B R375 47k R375 47k + - U216A NJM5532M + - U216A NJM5532M 3 2 1 84 R480 24k R480 24k C381 0.01u/50V C381 0.01u/50V R485 NM R485 NM C473 10p/50V C473 10p/50V R3309.1kR3309.1k + - U216B NJM5532M + - U216B NJM5532M 5 6 7 84 U215 NJW1159V U215 NJW1159V OUTL 1 BOUTL 2 VDD_OUT 3 BOUTR 4 OUTR 5 VSS_OUT 6 V+ 7 V- 8 INL 9 INR 10 CE0 11 CE1 12 DATA 13 CLK 14 LATCH 15 GND 16 D304 UDZS6.8B D304 UDZS6.8B TP218TP218 V-7V R372 1.5k R372 1.5k R315 47k R315 47k C4651000p/50VC4651000p/50V R30647kR30647k C3700.1uC3700.1u C38910u/16VC38910u/16V C317 1000p/50V C317 1000p/50V R373 1.5k R373 1.5k C480 33u/25V C480 33u/25V C31322p/50VC31322p/50V C343 100u/25V C343 100u/25V + - U214A TL072ACDR + - U214A TL072ACDR 3 2 1 84 C39810u/16VC39810u/16V C481 NM C481 NM C37222p/50VC37222p/50V R364 1k R364 1k C355 10u/50V C355 10u/50V C377 NM C377 NM R472 10 R472 10 + - U218A NE5532ADR + - U218A NE5532ADR 3 2 1 84 C385 10u/16V C385 10u/16V C38622p/50VC38622p/50V R312 100 R312 100 C318 NM C318 NM R314 47k R314 47k C495 33u/25V C495 33u/25V TP214TP214T+7V R365 1k R365 1k + - U212B NJM4556AL + - U212B NJM4556AL 5 6 7 84 TP215TP215 T-7V R320 0 R320 0 C4320.01u/50VC4320.01u/50V C3630.033uC3630.033u R366 1k R366 1k U219 DG403DYZ U219 DG403DYZ D1 1 NC 2 D3 3 S3 4 S4 5 D4 6 NC 7 D2 8 S2 9 IN2 10 +V 11 VL 12 GND 13 V- 14 IN1 15 S1 16 Q206 2SC2712 Q206 2SC2712 + - U214B TL072ACDR + - U214B TL072ACDR 5 6 7 84 R3444.7kR3444.7k R487 47k R487 47k C399 10u/16V C399 10u/16V R367 1k R367 1k C329 100u/25V C329 100u/25V U221 TL431IPK U221 TL431IPK 12 3 C35710u/50VC35710u/50V C47722p/50VC47722p/50V R326 47k R326 47k R316 3.9k R316 3.9k P204 2P-SCN P204 2P-SCN 1 2 R3484.7kR3484.7k C475 100p/50V C475 100p/50V C31222p/50VC31222p/50V TP220TP220 HP_IN R3544.7kR3544.7k C354 10u/50V C354 10u/50V C333 1000p/50V C333 1000p/50V + - U218B NE5532ADR + - U218B NE5532ADR 5 6 7 84 C33822p/50VC33822p/50V P202 B4B-EH P202 B4B-EH 1 2 3 4 C474 10p/50V C474 10p/50V C440 0.01u/50V C440 0.01u/50V C320 33u/25V C320 33u/25V C35010u/50VC35010u/50V C330 0.01u/50V C330 0.01u/50V R489 47k R489 47k C373 10u/16V C373 10u/16VC366 10u/50V C366 10u/50V Q204 2SC4213B Q204 2SC4213B R479 24k R479 24k Q207 KTA1504S-GR Q207 KTA1504S-GR C328 NM C328 NM R339 0 R339 0 R321 100 R321 100 R30147kR30147k C479 33u/25V C479 33u/25V C387 10u/16V C387 10u/16V R3044.7kR3044.7k TP216TP216 HP_Lc h R31912kR31912k C466 0.01u/50V C466 0.01u/50V R333 1k R333 1k C384 10u/16V C384 10u/16V R327 47k R327 47k R3434.7kR3434.7k C340 NM C340 NM C496 33u/25V C496 33u/25V Q202 2SC4213B Q202 2SC4213B Q203 2SC4213B Q203 2SC4213B U217 NJW1119AV U217 NJW1119AV InA 1 GND 2 SWCA 3 OutA 4 GND 5 Tr1a 6 Mi1a 7 Mi2a 8 Ba1a 9 Ba2a 10 NC 11 GND 12 VDDout 13 DATA 14 CLOCK 15 LATCH 16 ADR0 17 ADR1 18 V- 19 V+ 20 NC 21 NC 22 Ba2b 23 Ba1b 24 Mi2b 25 Mi1b 26 Tr1b 27 GND 28 OutB 29 SWCB 30 GND 31 InB 32 C326 33u/25V C326 33u/25V R481 12k R481 12k R486 NM R486 NM U211 NJU7312AM U211 NJU7312AM Vee 1 L1 2 L2 3 L3 4 L-COM1 5 L4 6 L5 7 L6 8 L-COM2 9 L7 10 L8 11 L-COM3 12 ST 14 Vss 15 R2 28 R3 27 R-COM1 26 R4 25 R5 24 R6 23 R-COM2 22 R7 21 R8 20 R-COM3 19 DATA 17 CK 16 R1 29 Vdd 30 NC 18 NC 13 C3582200pC3582200p R478 150 0.5W R478 150 0.5W R484 4.7k R484 4.7k + - U212A NJM4556AL + - U212A NJM4556AL 3 2 1 84 R3453.9kR3453.9k TP219TP219 HP_Rc h C464NMC464NM D219 UDZS7.5B D219 UDZS7.5B C315NMC315NM D218 UDZS7.5B D218 UDZS7.5B D217 BAT54SFILM D217 BAT54SFILM C3654700pC3654700p C380 1000p/50V C380 1000p/50V C483 0.01u/50V C483 0.01u/50V R476 3.3 R476 3.3 R368 10k R368 10k C39010u/16VC39010u/16V C39710u/16VC39710u/16V R3034.7kR3034.7k R488 47k R488 47k C35110u/50VC35110u/50V Q205 2SC4213B Q205 2SC4213B R46547kR46547k 7 A B C D E F 123456789 SCHEMATIC DIAGRAM AG-H600 Series Stereo Receiver AG-H600/AG-H600NT/AG-H600DNT 1 st Issue; July 2009 MAIN PCB (3/5) Control Except AG-H600 : JPN PRE_DATA PRE_CLK HP_IN AUX_MUTE TEST3 EXT_MUTE CPU_RX GPIOG12 SPI1_CSn2 SPI1_MISO SPI1_MOSI SPI1_SCK CPU_TX IPOD_IN IPOD_IN TUNED STEREO PRE_CLK T_DATAI PRE_DATA CPU_RX CPU_TX RDS_DATA RDS_CLK DAB_ON TUNER_CS VOL_CS TONE_CS SW1_CS TONE_DIRECT WARNING POWER_ON PA_MUTE CD_SEL SYS_OUT DAB_RST IPOD_TX IPOD_RX DAB_ON +1.2V+3.3V D+5V DGND DAB+5V D+5VCPU+5V DGND DGND D+5V DGND DGND DAB+5V+3.3V +1.2V DGND DGND CPU+5V DGND B+5V D+5V DGND DAB+5V DGND DAB+5V B+5V D+5V B+5V DGND +12V DAB+5V DGND DGND DGND I+3.3V I+3.3V DGND D+5V DGND D+5V D+5V I+3.3V DGND +3.3V DGND +3.3V DGND +3.3V R+5V R+5V DAB+5V DGND DGND I+3.3VD+5V DATA_RDS SW1_CLK TONE_CLK VOL_CLK TUNER_CLK TUNER_DI VOL_DATA TONE_DATA DIRECT_SW CS_TUNER CS_VOL CS_TONE CS_SW1 TUNER_DO STANDBY PGND RELAY_ON MUTE_EXT1 MUTE_EXT2 HP_SW CLK_RDS SW1_DATA L_IPOD R_IPOD PA_MUTE WARNING STEREO TUNED MUTE_AUX PON_MUTE L_DAB R_DAB (1/5) (2/5) (2/5) (2/5) (2/5) (2/5) (1/5) (2/5) (1/5) (5/5) (5/5) (5/5) TD+ CT CT TD- RD+ RD- (2/5) (2/5) (2/5) (2/5) (1/5) (1/5) (2/5) (2/5) (2/5) (1/5) (1/5) CD_SEL SYS_OUT (1/5) (1/5) RDS_CLK RDS_DATA T_DATAI (1/5) (1/5) (4/5) C415 0.01u/50V C415 0.01u/50V U412 LP2992AIM5-5.0 U412 LP2992AIM5-5.0 VIN 1 GND 2 EN 3 BP 4 VOUT 5 D405 RSX201L-30 D405 RSX201L-30 D403 RSX201L-30 D403 RSX201L-30 R415220R415220 C457 2.2u/6.3V C457 2.2u/6.3V R41247R41247 FB408 EXCCET101U FB408 EXCCET101U 3 21 C405 0.1u/16V C405 0.1u/16V C422 0.1u/16V C422 0.1u/16V FB419 EXCCET101U FB419 EXCCET101U 3 21 X400 25.000MHz X400 25.000MHz TP239TP239TUNER_CS C4205.6p/50VC4205.6p/50V FB403 MPZ1608S221A FB403 MPZ1608S221A TP235TP235CPU_TX C4230.1u/16VC4230.1u/16V FB418MMZ1608R600AFB418MMZ1608R600A FB420 EXCCET101U FB420 EXCCET101U 3 21 D401 BAT30-07P6FILM D401 BAT30-07P6FILM 1 2 34 5 6 FS400 RUEF250 FS400 RUEF250 Q408 DTC124EUA Q408 DTC124EUA R40110kR40110k U423 SN74LVC1G97DCKR U423 SN74LVC1G97DCKR IN1 1 GND 2 IN0 3 Y 4 Vc c 5 IN2 6 FB414MMZ1608R600AFB414MMZ1608R600A R41649.9R41649.9 R442 100 R442 100 R436 10k R436 10k U402 SN74LVC245APWR U402 SN74LVC245APWR VCC 20 T/R 1 OE 19 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 GND 10 B1 18 B2 17 B3 16 B4 15 B5 14 B6 13 B7 12 B8 11 TP231TP231PRE_CLK Q406 DTA124EUA Q406 DTA124EUA C435 2.2u/6.3V C435 2.2u/6.3V TP248TP248CD_SEL FB412 MMZ1608R600A FB412 MMZ1608R600A R454 10k R454 10k D411 BAT54SFILM D411 BAT54SFILM U420 BD4845FVE U420 BD4845FVE Vout 1 SUB 2 NC 3 GND 4 Vdd 5 R40747R40747 TP251TP251B+5V C468 0.1u/16V C468 0.1u/16V R41147R41147 C412 0.01u/50V C412 0.01u/50V C40910u/6.3VC40910u/6.3V TP226TP226TUNED C456 1u/16V C456 1u/16V C424 0.1u/16V C424 0.1u/16V C443 100p/50V C443 100p/50V Q403 DTC124EUA Q403 DTC124EUA C416 10u/6.3V C416 10u/6.3V C401 0.22u/10V C401 0.22u/10V TP244TP244TEST3 (GND) BA50DD0WHFP U409 (GND) BA50DD0WHFP U409 GND 3 TAB CTL 1 OUT 4 IN 2 NC 5 R404 10k R404 10k R41749.9R41749.9 R40010kR40010k P402 DA1R018H91E P402 DA1R018H91E 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Q409 DTA124EUA Q409 DTA124EUA FB409 EXCCET101U FB409 EXCCET101U 3 21 D407 NNCD3.3F D407 NNCD3.3F 3 2 1 C402 47u/6.3V C402 47u/6.3V FB410MPZ1608S221AFB410MPZ1608S221A C463 1u/16V C463 1u/16V D402 RSX201L-30 D402 RSX201L-30 C436 1u/16V C436 1u/16V TP240TP240VOL_CS TP236TP236RDS_DATA C421 10u/6.3V C421 10u/6.3V FB417MMZ1608R600AFB417MMZ1608R600A R446 10k R446 10k C4315.6p/50VC4315.6p/50V TP233TP233T_DATAI Q405 DTA124EUA Q405 DTA124EUA C4270.1u/16VC4270.1u/16V TP246TP246POWER_ON C467 0.1u/16V C467 0.1u/16V S1 S2 J400 JP011821UNL S1 S2 J400 JP011821UNL 1 2 3 4 5 6 7 8 9 10 R41047R41047 C413 10u/6.3V C413 10u/6.3V Q404 DTC124EUA Q404 DTC124EUA TP252TP252CPU+5V P401 40FLT-SM2-TB P401 40FLT-SM2-TB 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 J401 YKB21-5290V J401 YKB21-5290V 2 3 1 TP223TP223 B+5V TP227TP227STEREO TP249TP249SYS_OUT TP242TP242SW1_CS C4140.1u/16VC4140.1u/16V R44118kR44118k R42847R42847 R457 1k R457 1k P400 YP90-01403.2-64T1 P400 YP90-01403.2-64T1 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 57 58 59 60 61 62 63 64 U408 SN74LVC2T45DCTR U408 SN74LVC2T45DCTR VCCA 1 A1 2 A2 3 GND 4 DIR 5 B2 6 B1 7 VCCB 8 L401 0.27uH L401 0.27uH C441 0.01u/50V C441 0.01u/50V U404 SN74LVC245APWR U404 SN74LVC245APWR VCC 20 T/R 1 OE 19 A1 2 A2 3 A3 4 A4 5 A5 6 A6 7 A7 8 A8 9 GND 10 B1 1