Akai-DVR-4025-VSS-Service-Manual(1) 电路图 维修手册.pdf

《Akai-DVR-4025-VSS-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Akai-DVR-4025-VSS-Service-Manual(1) 电路图 维修手册.pdf（24页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL Model: DVR4025VSS DVD HOME THEATER SYSTEM www.akai.ru RadioFans.CN 收音机爱 好者资料库 Title Page 1. CONTENTS 2. BLOCK DIAGRAM (CABLE CONNECTIONS) 3. POWER SUPPLY 4. FUNCTIONAL DESCRITPIONS 4.1 DVD MPEG board 4.2 Front Panel 4.3 SMPS 4.4 DVD Driver 5. DESCRIPTION OF THE INTEGRATED CIRCUITS 5.1

2、 SWPS TRANSFORMER 5.2 FRONT PANEL DRIVER IC FRO VIR (PT6311) 5.3 SWPS CONTROLLER IC (5M02659) 5.4 SWPS PROGAMMABLE SHUNT RE GULATOR (FAIRCHILD TL 431) 5.5 LINE FILTER(2 x 6.8mH) 2 3 4 1 4 10 10 12 13 13 14 18 22 23 1 1.CONTENTS 1 RadioFans.CN 收音机爱 好者资料库 2BLOCK DIAGRAM(CABLE CONNECTIONS) DVD Service

3、Manual 1 2 RadioFans.CN 收音机爱 好者资料库 1 DVD Service Manual 3 MT1379DE 16M FLADH 64M SDRAM SEIAL EPROM AM/FM TUNER AUD2 AUD1 CVBS R G B DAC WMA8722 AUD0 4053 SURROUND L/R FRONT L/R L/R KARAOKE DOUT CENTRE/SUBWOOF 4.FUNCTIONAL DESCRIPTIONS 4.1DVD MPEG board 1 DVD Service Manual 4 MT1336E A A B B C C D D

4、E 44 33 22 1 MT1336E C142, C143, C144, C145 S MD 0 8 0 5 P a c k a g e CAP. C E MDI B RFO D IOA A SL- SL+ STBY SP+ SP- RFO IOA OP+ OP- FEO URST SP- OPO OP+ OPO IOA OP- CSO TEO A LDO 2 RFOP SL+ SCLK D STBY V1P4 LIMIT LIMIT SDATA B LDO 1 SL- HTRC E TROPEN LRFRP V2P8 RFON SDEN LDO1 BDO RFRP PWMOUT2 C V

5、1P4 SP+ LDO2 RFL MDI TRCLOSE F F V1P4 SW1 SW1 V20 V20 LM- LM+ TROUT TRIN TROPEN TRCLOSE GND TROUT TRIN DMSO FOSO FMSO TRSO RFL SCLK SDATA PWMOUT2 HTRC BDO RFON CSO TEO RFRP RFOP ADIN TROPEN SDEN FEO URST RVCCIN +PS5V +PS5V +5VDV33 RFVCC RVCCIN RVCCIN V2P8V1P4 RVCCIN RFVCC V1P4 +PS5VDV33 AVCC V20 AVC

6、C +5VP R173 330K R170 750K D7 1N4001 NOT Stuffed Q24 2SK3018 CB80 0.1u Q25 2SK3018 +C137 10u Q23 2N3904 CB1 0.1u +C128 100u +C151 220u +C138 10u +C146 220u R171 750KC139 RES C152RES CN3 JST6 Pin 2.0mm Pitch 1 2 3 4 5 6 R410K R152 100KC1421u R147 100K +C18 10u C1441u CB8 0.1u CB74 0.1u R143 000 L4Fer

7、rite Bead 1206 +C148 47u CB109 0.1u U1 1117-3.3 SOT-22 3 NOT Stuffed 3 1 2 IN G OUT C139 RES CB77 0.1u R? 1K CB79 0.1u CB97 0.1u C147 15n R16920K R167 10K C12927p R15727K +C136 47u D5 1N4148 CB2 0.1u C141RES CB83 0.1u R159 22Ohm CB89 0.1u L35 10uH + C9 220u CB86 0.1u R? 1K CB84 0.1u CB94 0.1u +C6 22

8、0u R59 10K CB82 0.1u R148 10K Q?8550 TO-92 Q?8050 TO-92 CB76 0.1u C13015n Q? 8550 TO-92 C131 10p CB96 0.1u +C16 10u CB90 0.1u L32 FB 0805 NOT STUFF Q? 8050 TO-92 R149 10K L1Ferrite Bead 1206 R146 10K CB88 0.1u CB100.1u CB85 0.1u R150 10K CB29 0.1u C132390p R145 10K CB78 0.1u R153 0Ohm R165 33K CN1 P

9、ower Supply 1 2 3 4 5 R158100K C133390p R151 10K C134 470p CN2 JST5 Pin 2.0mm Pitch 1 2 3 4 5 CON1 SF-HD60AV/0.5mm,24Pin 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 F- F+ T+ T- C D CD/DVD RF A B F GND-PD VC VCC E NC VR-CD VR-DVD LD-CD MD HFM NC LD-DVD GND-LD C1431uCB107 0.1u +C140

10、 47u L36 10uH C1451u R16620K L33 FB 0805 NOT STUFF U2 MT 1336E 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 39 40 41 42 43 44 45 46 47 4

11、8 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 65 WGN D RFSUBO LDO 2 LDO 1 MDI1 MDI2 AGC3 AGC2 WAVDD AGC1 WGA N D SGND TNI TPI SVDD CDFON CDFOP SD SC AVDD IR AGND SB SA MD MC VFO13 VD

12、D AGNDX AGNDX AGNDX DPFO DPFN GNDP HTRC TRLP TRLPA CRTPLP CRTP HRFRP LRFRP DEFECT VDDP TEO CSO LVL FEO V20 VREFO V2REFO AVDDT TM4 AGNDT TM3 TM2 TM1 AGNDO RFON RFOP AVDDO AGNDX AGNDX WVDD WOBSO GND UDGATE HDGATE IO0 IO1 IO2 IO3 IO4 IO5 IO6 IO7 IO8 IO9 IOA IOB VDDS XCK16M SCLK GNDS SDEN SDATA RST DPDM

13、UTE AGNDP AGNDX AVDDP VCON AVDDF AGNDX AVDDM COSPHI HALLCOS REFCOS AGNDM HALLSIN REFSIN SINPHI SW0 SW2 SW1 MOP MON AGNDX AGNDX CEON CEOP RFGCI RFGCU RFFGC OSP OSN CDD CDC CDB CDA DVDRFIN DVDRFIP DVDD DVDC DVDB DVDA MA MB AGNDF R156RES C135 33n L3Ferrite Bead 1206 R160 22Ohm +C153 47u R141 000 CB950.

14、1u R164 1OhmU18 BA5954FPHSOP28 1 9 10 12 3 2 15 7 14 13 21 19 20 24 27 6 4 5 28 8 11 17 18 16 23 22 25 26 2930 VINFC PVCC1 PGND VOSL+ CF2 CF1 VOTK+ VNFFC VOFC+ VOFC- PVCC2 PGND VNFTK CTK2 BIAS VOSL VINSL+ VINSL- STBY VCC VOSL- VOLD+ VOLD- VOTK- VINLD PREGND CTK1 VINTK GNDGND R163 1Ohm C150150p C1491

15、50p CB11 0.1u R168 20K R162 1Ohm D6 1N4001 NOT Stuffed R161 1Ohm D4 1N4148 L34FB 1206 C139 120p Q27 2SB1132 R? 220 R174 1Ohm Q26 2SB1132 R?220 R172 330K DVD Service Manual 1 DVD Service Manual 6 A A B B C C D D E E 44 33 22 11 The i n formatio n h a s been checked and i s beli e ved to be reli able.

16、 However, n o responsi btime in order to improve the design. MAXITECH Technology Co., LTD. MT1379_216 CB3 Placed Near Pin 212 OP T I ONAL E Maxitech DVD-Receiver MT1379 Solution 24Wednesday, July 28, 2004 Title Siz eDocument NumberRev Date:Sheetof RAS# SDCKE CS# DCAS# DCLK WE# SDCLK DCS# DWE# CAS# D

17、RAS# DCKE A8 A17 A19 A16 AD2 A18 A14 A6 A11 A7 A9 A3 AD0 A15 A2 AD4 A1 PRD# A4 AD5 AD6 A0 AD3 A13 PCE# AD1 A5 A10 A12AD7 PWR# BDO SCLK SDEN SDATA A14 Y5 V25 MA8 AD2 DQ26 PCE# A8 AD1 V25 A4 GND A17 DQ13 MA3 CAS# DV33 PWR# RFON AD0 V25 GND DQ2 GND AD3 DACV33A GND DQ31 DV33 A11 DQ6 MA6 V25 DV33 FMSO VS

18、YNC# DV33 BDO DQM0 DQM1 A2 RXD A13 AV33 Y2 DCLK GND DQ12 MA1 A16 GND BA1 GND DQ11 GND HSYNC# A5 A15 DQ29 ASPDIF TXD FOSO ABCK MA7 A3 V25 GND RFIN AD4 TRSO WE# DQ3 DQ5 Y3 DQ30 DV33 V25 DQ9 AD5 DQ10 ASDAT0 RAS# A0 GND ACLK DQ14 GND DACV33C MA1 0 A1 AD7 PRD# DQ22 Y1 MA0 ADC_DAT DQ7 DMSO MA2 P1.3 GND DA

19、CV33B DQ21 AD6 A10 DV33 FEO CSO DQ20 SCL A6 DQ1 A19 DQ23 RFRP MA4 DV33 A18 RFL DQ24 MA5 TROPEN GND DV33 DQ15 ASDAT1 V25 RFIP Y6 MA11 GND RFOP DQ4 DQ0 DQ8 GND DCKE V2P8 Y4 A7 A9 GND A12 ADIN IR SDA MA9 PWMOUT 2 TEO V25 TEO CSO FEO RFL ADIN URST AV33 ASDAT2 MUT E ADC_DAT IR V1P4 HTRC P3.0 P3.1 P1.5 P1

20、.4 Y3 Y2 Y1 Y6 Y5 Y4 VSYNC# HSYNC# P1.3VFD_SCK A20 DACV33B DACV33C DV33 DACV33A DQ18 DQ19 DQ22 DQ16 DQ21 DQ20 DQ23 DQ17 P3.1 IOA20 P1.5 SDA4 P3.0 A20 SDA BA0 CS# MA5 DCAS# DQM0 DQ11 SDCKE MA6 DQ5 DQ13 MA1 0 DQ9MA9 DQ1 DQ3 MA0 MA3 DQ7 BA1 DQ8 DQ15 MA4 DQ14 DQ2 MA7 SDCLK DRAS# DQ0 MA8 DWE# DQ4 DQ6 MA1

21、 DQ10 DQM1 MA2 BA0DQ12 DCS# ALRCK MA1 1 DQM1 DQ15 DQ14 DQ9 DQ13 DQ12 DQ10 DQ8 DQ11DQ5 DQ7 DQ4 DQ1 DQ6 DQ3 DQM0 DQ0 DQ2 MA0 DWE# MA8 SDCKE MA3 MA7 MA 10 SDCLK MA2 DBA0 DCS# MA6 MA9 DCAS# MA5 MA4 DRAS# MA1 DWE# SDCKE MA6 MA4 MA1 DCAS# DBA0 MA3 MA7 DCS# SDCLK MA9 MA0 DRAS# MA2 MA8 MA10 MA5 DBA1 MA1 1 D

22、BA1 MA1 1 URST A19 AD3 A2 A15 A17 PRD# A16 A10 A4 AD2 AD0 AD1 A9 A5 PWR# A11 AD7 PCE# A0 A8 AD4 AD5 A7 A13 A12 A6 A14 A1 A3 AD6 A18 SCL P1.4VFD_STB P1.5VFD_SDA BDO SDEN SCLK PWMOUT 2 DMSO FMSO FOSO TRSO TROPEN RFOP RFON RFRP CSO FEO RFL ADIN TEO SDATA ASDAT2 ASDAT1 ASDAT0 ABCK ALRCK ASPDIF MUT E ADC

23、_DAT HTRC Y2 Y3 Y1 Y5 Y6 Y4 VSYNC# HSYNC# ACLK URST FVCC V25 AV33 AV33 V1P4 V1P4 V2P8 FVCC DV33 +PS5V DV33 AV33 DV33 +PS5V SD33 DV33 +PS5V +P5V SD33 SD33SD33 SD33 +PS5V DV33 FVCC +CE29 47uF CB45 0.1uF C36 330p C231000p CB104 0.1u CB52 0.1uF U88M8 SDRAM 54-Pin TSOPII (400mil x 875mil) 1 2 5 12 8 11 9

24、 44 47 46 50 53 16 17 18 19 35 22 23 24 25 26 14 41 29 30 31 32 33 34 37 38 39 43 52 49 54 20 213 6 27 28 VCC DQ0 DQ1 VSSQ DQ2 DQ3 VCCQ DQ4 DQ5 VSSQ DQ6 DQ7 WE CAS RAS CS A11 A10/AP A0 A1 A2 A3 VCC VSS A4 A5 A6 A7 A8 A9 CKE CLK DQM VCCQ VSSQ VCCQ VSS BA0/A13 BA1/A12VCCQ VSSQ VCC VSS C32 RES R4310K C

25、B47 0.1uF R30 4.7Ohm L9FB 0805 R23 1K L11Ferrite Bead 1206 R10 18K L10RES R3310K R3233Ohm R14 4.7Ohm CB30 0.1u L6 FB 0805 C41 100p C31 10n +C38 100u R29 4.7Ohm +C4 220u L2Ferrite Bead 1206 CB27 0.1u R3133Ohm R2110K CB105 0.1u R42 10K C221000p R24 1K C29 10n CB9 0.1u L7 FB 0805 CB4 0.1u C37 RES +C154

26、 220u C28 10n U 5 MT 1379E SMD LQFP-216 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 216 215 214 205 204 213 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184

27、 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109

28、 108 107 106 105 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 52 203 206 207 208 209 210 211 212 IOA20 APLLVSS APLLVDD3 ALE IOOE# IOWR# IOCS# DVSS UP1_2 UP1_3 UP1_4 UP1_5 UP1_6 DVDD3 UP1_7 UP3_0 UP3_1

29、INT0# IR DVDD2 UP3_4 UP3_5 UWR# URD# DVSS RD7 RD6 RD5 RD4 DVDD2 RD3 RD2 RD1 RD0 RWE# CAS# RAS# RCS# BA0 DVSS RD15 RD14 RD13 RD12 DVDD3 RD11 RD10 RD9 RD8 DVSS CLK CLE RFIP RFIN RFDTSLVN FEI CSO RFDTSLVP TEZISLV RFSUBI ADIN ADCVSS BDO SLCK SDEN SDATA WOBSI UDGATE DVDD3 IDGATE VFO13 DVSS PRST XTALI XTA

30、LO DVDD3 SPBCK SPLRCK DVDD2 SPDATA SPMCLK HSYN DVSS YUV7 VSYN BLANK# ICE YUV6/R YUV5/B DACVSSA YUV4/G DACVDDA YUV3/CVBS DACVSSB YUV2/Y DACVDDB YUV1/C DACVSSC YUV0/CIN FS VREF DACVDDC ASDATA4 ASDATA3 ASDATA2 ASDATA1 ASDATA0 SPDIF MC_DATA ACLK DVDD3 ALRCK ABCK RD16 RD17 DVSS RD18 RD19 RD20 RD21 DVDD2

31、RD22 RD23 DQM2 DQM3 DVSS RD24 RD25 RD26 RD27 DVDD3 RD28 RD29 RD30 RD31 DVSS RA3 RA2 RA1 RA0 DVDD2 RA10 BA1 DQM0 DQM1 DVSS RA4 RA5 RA6 DVDD3 RA7 DMVSS DMVDD3 RA8 RA9 RA11 IREF PLLVSS LPIOP LPION LPFON LPFIP LPFIN LPFOP JITFO JITFN PLLVDD3 FOO TRO TROPENPWM PWMOUT1 PWMOUT2 DVDD2 DMO FMO DVSS FG HIGHA0

32、 HIGHA1 HIGHA2 HIGHA3 HIGHA4 HIGHA5 DVSS HIGHA6 HIGHA7 AD7 AD6 AD5 AD4 DVDD3 AD3 AD2 AD1 AD0 IOA0 IOA1 DVDD2 IOA2 IOA3 IOA4 IOA5 IOA6 IOA7 A16 A17 IOA18 IOA19 TEI RFLEVEL RFRP_DC RFRP_AC HRFZC PWMVREF PWM2VREF ADCVDD3 R7 100K R2733 L8 FB 0805 R6 4.7Ohm U11 8M/16M Flash 48Pin TSOP (Standard Type, 12m

33、m x 20mm) 37 27 46 45 43 41 39 36 34 32 30 44 42 40 38 35 33 31 29 15 9 16 17 48 1 2 3 4 5 6 7 8 18 19 20 21 22 23 24 2512 11 47 26 28 13 14 10 VCC GND0 GND1 DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ09 DQ08 DQ07 DQ06 DQ05 DQ04 DQ03 DQ02 DQ01 DQ00 RY_BY A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A09 A08 A07 A06

34、A05 A04 A03 A02 A01 A00 RESET WE BYTE CE OE VPP WP# A20 R34RES R25 1K R4310K CB14 0.1u R175 33Ohm R42 10K R2215K +C44 47u CB15 0.1u R13RES R35RES CB35 0.1u CB13 0.1u R16 560 CB5 0.1u R1820K Q1 2N3906 +C2 RES RN133x4 C34 15n U54M16/2M16 SDRAM 54-Pin TSOPII (400mil x 875mil) 1 2 4 12 5 7 9 8 10 46 11

35、13 15 16 17 18 19 35 22 23 24 25 26 14 41 29 30 31 32 33 34 36 37 38 39 40 43 42 44 52 45 47 49 48 50 51 53 54 20 21 3 6 27 28 VCC DQ0 DQ1 VSSQ DQ2 DQ3 VCCQ DQ4 DQ5 VSSQ DQ6 DQ7 DQML WE CAS RAS CS A11 A10/AP A0 A1 A2 A3 VCC VSS A4 A5 A6 A7 A8 A9 NC CKE CLK DQMH NC VCCQ DQ8 DQ9 VSSQ DQ10 DQ11 VCCQ DQ

36、12 DQ13 DQ14 DQ15 VSS BA0/A13 BA1/A12 VCCQ VSSQ VCC VSS CB100 0.1u CB110 0.1u CB18 0.1u CB87 0.1u R158.2K R36RES +C24 47u CB17 0.1u R37RES D12 1N4001 R17750K C40 2.2u 0805 R38RES R39RES C35 330p C14 22p CB3 0.1u C7 10n CB33 RES C30 10n CB22 0.1u C13 22p J5 Front Panel Interface JST6 Pin 2.54mm Pitch

37、 1 2 3 4 5 6 C39 2.2u 0805 Y1 27MHz R40RES R1918K C11 RES (1nF) R41RES D10 RES R4 100KL5 RES (2.7uH) CB103 0.1u R26 10Ohm R5 33Ohm U10 EEPROM 24C16 SOP8 1 2 3 45 6 7 8 DC/NC RST_/NC WP/RST_ VSSSDA SCL RST/WP VCC +C5 10u R1 1K U9 SST39VF080 TSOP4 0 21 20 19 18 17 16 15 14 8 37 24 13 25 26 27 28 7 22

38、32 33 34 35 11 30 23 939 36 5 6 4 3 2 1 40 29 10 12 38 31 A0 A1 A2 A3 A4 A5 A6 A7 A8 A19 OE A18 D0 D1 D2 D3 A9 CE D4 D5 D6 D7 NC VCC VSS WEVSS A10 A12 A11 A13 A14 A15 A16 A17 NC RESET RY/BY NC VCC C33 100p R111K CB19 0.1u R28RES CB48 0.1uF R20RES U98M8 SDRAM 54-Pin TSOPII (400mil x 875mil) 1 2 5 12

39、8 11 9 44 47 46 50 53 16 17 18 19 35 22 23 24 25 26 14 41 29 30 31 32 33 34 37 38 39 43 52 49 54 20 213 6 27 28 VCC DQ0 DQ1 VSSQ DQ2 DQ3 VCCQ DQ4 DQ5 VSSQ DQ6 DQ7 WE CAS RAS CS A11 A10/AP A0 A1 A2 A3 VCC VSS A4 A5 A6 A7 A8 A9 CKE CLK DQM VCCQ VSSQ VCCQ VSS BA0/A13 BA1/A12VCCQ VSSQ VCC VSS D1 1N4148

40、R19RES R9RES C21 1000p CB20 0.1u CB28 0.1u R8RES CB510.1u +C10 220u CB102 0.1u DVD Service Manual 7 A A B B C C D D E E 44 33 22 11 The information has been checked and is believed to be r e liable. H o w e ver, no r e sponsibility is assumed for inaccura cies. C i r cuit diagrams are provided as a

41、means of illustra ting typical applications; MA X I TECH Technology r e serv es the right to make changes at any time in order to improve the design. MAXITECH Technology Co., LTD. OPAMPs U10, U 1 3 & U 1 5 D e c o u p ling Capacitors Hardware Con 24Bit-I OPTIONAL A2 7.1-Channel DivX DVD-Receiver 23F

42、riday, July 30, 2004 Title SizDocument NumberRev Date:Sheetof DAC_FRDAC_FL DAC_CENTDAC_LFE DAC_SLDAC_SR MIC1 AUX1_L AUX2_L MIC2 AUX1_R AUX2_R AINL AINR MIC2 AUX1_L AUX2_R AUX1_R AUX2_L RXP3 MIC_DECT MIC1 RXP2 FL SL A_MUTE LFE SR FR CENT FL FR SL SR CENT LFE RSL RSR A_MUTE SL SR CENT LFE FR FL AMP_ST

43、BY DAC_SR DAC_LFE DAC_CENT DAC_FR DAC_FL DAC_SL ABCK ALRCK ASDAT0 ASDAT1 ASDAT2 ADC_DAT ACLK A_MUTE A_MUTEA_MUTE A_MUTE A_MUTE AINL AINR SPDIFOUTASPDIF DQ29 TUNER_R DQ30 FLFR MUTE DQ16 ASDAT2 ALRCK ABCK ACLK ASDAT0 ASDAT1 ADC_DTA TUNER_L A+12V A+12V A+12V A+12V A-12V A-12V +5VA A-12V A-12V A-12V DV3

44、3 +PS5V+5V+12V-12VA+5V +5V +5VA DV33 +5VA A+12V+5VA VCC +3.3V R196RES CON8 Audio Input JST 12Pin 2.0mm Pitch 1 2 3 4 5 6 7 8 9 10 11 12 R1051 M CB9 0.1uF R1511K R3215k CB8 0.1uF C35 22p CB7 0.1uF C33 2000pF + CE6 47uF 16V CB6 0.1uF R103 10M + - U10A 4558 SOP8 3 2 1 + C24 10u R112 91 R34 5.1k R111330

45、 R138 RESD1 1N4148 + - U13B 4558 SOP8 5 6 7 84 R138 RES R106 100K R3515k C29 220pF U13C 74HC04 56 CB76 0.1uF + CE43 47uF C49 220pF D? 5.1V JP? Audio Out JST9 Pin 2.0mm Pitch 1 2 3 4 5 6 7 8 9 CB76 0.1uF C46 2000pF R1911K R10433 R915k R31 5.1k CB9 0.1uF Q30 2N3904 L30 FB L30 FB +CE5 10uF + CE8 10uF C

46、35 22p R36 10k + C34 10u R12 5.1k R82150 R1511K R37 5.1k R84150 R3815k +CE6 47uF 16V + - U10B 4558 SOP8 5 6 7 84 R30 10k C1720.1u C50 2000pF R178 1K L30 FB +C54 10uF C32 220pF U13A 74HC04 12 C20 2000pF R40 10kL10 FB C163 0.1u Q30 2N3904 R5210 Ohm L30 FB R33 10k C35 22p CB106 0.1uF + C34 10u C53 220p

47、F R1511K CB58 0.1uF U13D 74HC04 98 R137 1K CB56 0.1uF +C55 220uF + CE10 10uF U13E 74HC04 1110 CB6 0.1uF +C53 220uF + CE24 10uF + C24 10u RN233x4 R51RES R18 15k R2915k + CE19 10uF +C8 10uF U14 WM8772/DA1172 SSOP28 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 MODE MCLK BC

48、LK LRC DVDD DGND DIN1 DIN2 DIN3 DOUT ML/I2S MC/IWL MD/DM MUTE TESTREF1 VREFN VFEFP VMID AINR AINL VOUT1L VOUT1R VOUT2L VOUT2R VOUT3L VOUT3R AGND AVDD CB57 0.1uF RN233x4 R26 5.1k Q30 2N3904 R151 1K U10378L05 TO-92(Reserved) 1 2 3 OUT G IN R1511K R196FB AXIAL 0.4 C43 220pF + CE8 10uF + CE710uF R11 10k R932.2k + - U15B 4558 SOP8 5 6 7 84 + CE43 RES Q712N3906 R129 1K Q20 2N3904