B&K-AVR317-avr-sch维修电路原理图.pdf

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1、AVR 315 - AVR 317AVR 315 - AVR 317 SERVICE MANUAL B&K COMPONENTS, LTD. 2100 Old Union Road Buffalo, New York 14227-2725 U.S.A. RadioFans.CN 收音机爱 好者资料库 6FKHPDWLFV6FKHPDWLFV B&K COMPONENTS, LTD. 2100 Old Union Road Buffalo, New York 14227-2725 U.S.A. RadioFans.CN 收音机爱 好者资料库 123456 A B C D 654321 D C B

2、 A Title NumberRevisionSize C Date:7-Aug-2000 Sheet of File:C:B&k_DataBKPRODSeriesIIManufacPCB_Current12798a02.ddbDrawn By: 1 of 1 ESM VA+ 12 AGNDL 15 SDATAI 3 SDATAO 7 SCLK 6 CS 2 AOUTL 14 AOUTR 11 AIL 16 AIR 9 ZCEN 1 MUTE 8 DGND 5 AGNDR 10 VA- 13 VD+ 4 U10CS3310 3 2 1 84 U2A AD712 5 6 7 U2B AD712

3、-15 +15 R2215K R23 10K R24 221 R25 221 R26 10K R2715K R2810K R2910K C15 .1uF C16 .1uF -5 C17 .1uF VDD VDD +5 C18 .1uF C19 .1uF R30 100K VA+ 12 AGNDL 15 SDATAI 3 SDATAO 7 SCLK 6 CS 2 AOUTL 14 AOUTR 11 AIL 16 AIR 9 ZCEN 1 MUTE 8 DGND 5 AGNDR 10 VA- 13 VD+ 4 U11CS3310 R31 221 R32 221 R3310K -5 C20 .1uF

4、 VDD VDD +5 C21 .1uF VA+ 12 AGNDL 15 SDATAI 3 SDATAO 7 SCLK 6 CS 2 AOUTL 14 AOUTR 11 AIL 16 AIR 9 ZCEN 1 MUTE 8 DGND 5 AGNDR 10 VA- 13 VD+ 4 U12CS3310 R34 221 R35 221 -5 C22 .1uF VDD VDD +5 C23 .1uF Q16 2N5210 R36 1.5K +15 C24.1uF C25 .1uF C26 .1uF SPI_D_3 SPI_Clk Vol_En Vol_En SPI_Clk SPI_D_4 Vol_E

5、n SPI_Clk SPI_D_4 Lf_VOL Rf_VOL RF LF Sub_VOL C_VOL Rr_VOL Lr_VOL Vol_Mute Vol_Mute Vol_Mute Vol_Mute 3 2 1 84 U3A AD712 5 6 7 U3B AD712 -15 +15 R4210K R43 10K R44 10K R4510K R4610K C27 .1uF C28 .1uF SUB CTR 3 2 1 84 U4A AD712 5 6 7 U4B AD712 -15 +15 R4710K R48 10K R49 10K R5010K R5110K R5210K C29 .

6、1uF C30 .1uF RR LR LF RF CENTER SUB LR RR Vol_En SPI_Out SPI_Clk SUB CENTER RR LR LF RF SPI_Out SPI_Clk Vol_En LF RF CENTER SUB LR RR LF CENTER SUB RF LR RR W4 V_C W1 V_RR W6 V_LR W7 +15 W9 -15 Sel_Rst Sel_Rst M1_En M2_En M1_En M2_En +5 W10 +5 -5 W12 -5 + C65 100uF/25V + C66 100uF/25V R98 5.62 + C72

7、 100uF/25V VDD SPI_D_3 W22 GND W23 GND W25 GND W26 GND W27 GND D3 LL4148 1 143 16 512 98 RL1 HAS212-05 1 143 16 512 98 RL2 HAS212-05 1 143 16 512 98 RL3 HAS212-05 AVR Series II Bass Management B&K pn 12798a0B A LX RX LX RX VA+ 12 AGNDL 15 SDATAI 3 SDATAO 7 SCLK 6 CS 2 AOUTL 14 AOUTR 11 AIL 16 AIR 9

8、ZCEN 1 MUTE 8 DGND 5 AGNDR 10 VA- 13 VD+ 4 U22CS3310 R141 221 R142 221 -5 C73 .1uF VDD VDD +5 C74 .1uF C75 .1uF SPI_Clk Vol_En SPI_D_1 Rx_VOL Lx_Aud Vol_Mute 3 2 1 84 U23A AD712 5 6 7 U23B AD712 -15 +15 R4110K R96 10K R105 10K C76 .1uF C77 .1uF RX LX LX RX SPI_D_2 W32 V_LX W31 GND SPI_D_2 L3 3 LCM2

9、8 L4 4 LCM1 5 L5 6 L6 7 S 17 VSS 16 CLK 15 DI 14 CE 13 VEE 12 RST 18 VDD 19 L2 2 L7 9 L8 10 LCM3 11 R7 22 RCM2 23 R6 24 R5 25 RCM1 26 R4 27 R3 28 R2 29 R8 21 RCM3 20 L1 1 R1 30 U15LC7821 M1_En SPI_Out SPI_Clk Sel_Rst Lt_AudRt_Aud V2B_LV2B_R MISC Z2 AUDIO SELECTOR +15-15 C55 .1uF R95 47.5K Z2_L_VOLZ2

10、_R_VOL V2_RV2_L L3 3 LCM2 8 L4 4 LCM1 5 L5 6 L6 7 S 17 VSS 16 CLK 15 DI 14 CE 13 VEE 12 RST 18 VDD 19 L2 2 L7 9 L8 10 LCM3 11 R7 22 RCM2 23 R6 24 R5 25 RCM1 26 R4 27 R3 28 R2 29 R8 21 RCM3 20 L1 1 R1 30 U24LC7821 M2_En SPI_Out SPI_Clk Sel_Rst Sub_G4Rx_G4 Sub_WRx_W Sub_Gain Rx_Out Sub_G1Rx_G1 Sub_Out

11、 Rx_W MISC SUB AUDIO SELECTOR +15-15 Sub_G2 Sub_G3 Rx_G2 Rx_G3 Sub_Dmx Rx_Gain Lr_W C_W Lr_Out C_Out Lr_Dmx C_Dmx VA+ 12 AGNDL 15 SDATAI 3 SDATAO 7 SCLK 6 CS 2 AOUTL 14 AOUTR 11 AIL 16 AIR 9 ZCEN 1 MUTE 8 DGND 5 AGNDR 10 VA- 13 VD+ 4 U13CS3310 -5 Rr_W C34 .1uF Rr_Out Rr_Dmx VDD +5 C35.1uF C36.1uF Vo

12、l_En SPI_Clk Z2_L_VOL Z2_R_VOL Vol_Mute VDD ZONE 2 VOLUME SPI_Out SPI_D_1 Z2_R_VOL Z2_L_VOL ZD3 OPEN ZD4 OPEN ZD5 OPEN ZD6 OPEN V2B_L V2B_R V2_L V2_R V2B_L V2B_R V2_L V2_R Z2_A_Out_R Z2_A_Out_L R93221 R94221 Lf_VOL Rf_VOL Lf_VOL Rf_VOL C_VOL Sub_VOL C_VOL Sub_VOL Lr_VOL Rr_VOL Lr_VOL Rr_VOL Rx_VOL R

13、x_VOL Z2_A_Out_L Z2_A_Out_R Z2_A_Out_L Z2_A_Out_R R15210K Lf_W C_Dmx Lr_Dmx Rf_W C_Out Sub_Out Lr_Out Rr_Out Lx_W Rx_Out Sub_Dmx C_Dmx Rr_Dmx Lf_W Rf_W Sub_W C_W Rr_W Lr_W Rx_W Lx_W Sub_Dmx 3 2 1 84 U27A LF353 5 6 7 U27B LF353 -15 +15 R106 10K R107 10K C78 .1uF C79 .1uF S_Gain S_Inv Sub_G1 Sub_G3 Su

14、b_G2 Sub_G4 Sub_W R1634.64K R1657.5K R16724.3K R1692.49K R17117.4K R108 10K 3 2 1 84 U28A LF353 5 6 7 U28B LF353 -15 +15 R109 10K R110 10K Rx_Gain Rx_Inv R1644.64K R1667.5K R16824.3K R1702.49K R17217.4K R111 10K Rx_G1 Rx_G3 Rx_G2 Rx_G4 Rx_W Sub_Gain Rx_Gain 3 2 1 84 U29A LF353 +15 -15 C86 .1uF C87 .

15、1uF R112 47.5K ZD12 12V 5 6 7 U29B LF353 R113 47.5K R114 47.5K R115 47.5K R116 47.5K R150 47.5K Lf_Vol Rf_Vol C_Vol Sub_Vol Lr_Vol Rr_Vol R117 47.5K R118 47.5K ZD13 12V R119 47.5K R151 47.5K Aud_O_Det Aud_I_Det A_Lf A_Rf PRE & POST AUDIO DETECTORS R175 24.3K R176 24.3K R120 47.5K R121 47.5K Lx_Aud R

16、x_Vol TAP_A_Out_L TAP_A_Out_R TAP_A_Out_L TAP_A_Out_R Lx_Aud Lx_Aud Rt_Aud Lt_Aud Rt_Aud Lt_Aud Rx_Aud Rx_Aud Sub_Aud Sub_Aud C_Aud C_Aud Lr_Aud Lr_Aud Rr_Aud Rr_Aud Lf_Aud Lf_Aud Rf_Aud Rf_Aud Aud_I_Det Aud_O_Det RX LX 1 143 16 512 98 RL4 HAS212-05 Z1_Rly_En Q2 2N5210 D4 LL4148 R38 1.5K Z2_A_Out_R

17、Z2_A_Out_L 1 143 16 512 98 RL5 HAS212-12 Z2_Rly_En +12 Q9 2N5087 ZD7 1N963 R143 1.5K +15 R153 1K R122 10K R144 1.5K Q10 2N5087 R123 10K R145 1.5K R154 1K Out_Det In_Det W20 GND +15-15 + C67 100uF/25V + C68 100uF/25V W2 Z2R W3 Z2L W5 LF W11 RF D1 LL4148 in place of R173 in place of R174 D2 LL4148 W13

18、 V_RX W14 GND W15 GND W17 GND 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:7-Aug-2000 Sheet of File:C:B&k_DataBKPRODSeriesIIManufacPCB_Current12798a02.ddbDrawn By: 1 of 1 ESM V1_A_In_R 48 Y W R 12 CON4RCA_RWY_X3 48 Y W R 12 CON3RCA_RWY_X3 48 Y W R 12 CON2RCA_RWY_X3 2 1 5 4 3 6 7 8 C

19、ON8 RJ45 2 1 CON1 AM PC MOUNT RS232_In RS232_Out 48 Y W R 12 CON5RCA_RWY_X3 V1_A_In_L V1_V_In V2_A_In_R V2_A_In_L V2_V_In V3_A_In_R V3_A_In_L V3_V_In DVD_A_In_R DVD_A_In_L DVD_V_In CD_A_In_R CD_A_In_L CD_V_In SAT_A_In_R SAT_A_In_L SAT_V_In TAP_A_In_R TAP_A_In_L TAP_V_In Z1_V_Out Z2_A_Out_R Z2_A_Out_

20、L Z2_V_Out V2_A_Out_R V2_A_Out_L V2_V_Out V1_A_Out_R V1_A_Out_L V1_V_Out TAP_A_Out_R TAP_A_Out_L TAP_V_Out SUB CENTER RF LX RX LF AM_ANT LED_A LED_K AVR Series II Connector/Control/Switch B&K pn 12798a0C A 2 4 1 3 Sa Sb CON12 IEEE-1394-S4 B T CON9 7275-8NB B T CON10 7275-8NB B T CON11 7275-8NB 48 G

21、W R CON6RCA_RWY_X2 48 G W R CON7RCA_RWY_X2 LR RR A/V OUTPUT SIGNALS RS-232 I/O A/V INPUT SIGNALS DVD AUDIO INPUT D5 LL4148 D6 LL4148 R177402 Z2 IR IN Z1 IR IN CONT1CONT2CONT3CONT4 CONT1CONT2CONT3CONT4 Q11 TIP32C R178 68.1 D7 DL4002 +12 D8 DL4002 ZD8 1N748 R124 10K Q13 TIP32C R179 68.1 D9 DL4002 +12

22、D10 DL4002 ZD9 1N748 R125 10K Q14 TIP32C R180 68.1 ZD10 1N748 R126 10K Q15 TIP32C R181 68.1 ZD11 1N748 R127 10K +12+12 Q4 2N5210 R146 1.5K R128 10K Q6 2N5210 R147 1.5K R129 10K Q7 2N5210 R148 1.5K R130 10K Q8 2N5210 R149 1.5K R131 10K R182 3.01K R183 3.01K R184 3.01K R185 3.01K 12 34 56 78 910 JP2 H

23、eader 2X5 LED_K LED_A DVDA_In_Lf DVDA_In_Rf DVDA_In_C DVDA_In_Lr DVDA_In_Rr DVDA_In_S CON13 +12 Z1_V_OutTAP_V_InV1_V_OutSAT_V_InTAP_V_OutCD_V_InZ2_V_OutDVD_V_InV2_V_OutV3_V_InV1_V_InV2_V_In CON18 +12 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:7-Aug-2000 Sheet of File:C:B&k_DataBKP

24、RODSeriesIIManufacPCB_Current12798a02.ddbDrawn By: 1 of 1 ESM V+ 2 C1+ 1 C1- 3 T1O 14 T2O 7 R1I 13 GND 15 VCC 16 R2I 8 C2+ 4 C2- 5 T1I 11 T2I 10 R1O 12 R2O 9 V- 6 U17 MAX232smt + C46 1uF/50V + C47 1uF/50V C48 .1uF + C49 1uF/50V + C50 1uF/50V 3.58MHz PLL_En SPI_Out SPI_Clk RS232_In RS232_Out A0 1 A1

25、2 A2 3 VSS 4 VCC 8 NC 7 SCL 6 SDA 5 U19 24C128 IR_Data Z86_Data Z86_Clk VFD_Clk LED_St Z86_Data Z86_Clk VFD_Clk LED_St IR_Data VFD_Rst VFD_Rst XDISPB VFD_Rst LED_K LED_A IR_Data Z86_Data SPI_Out Z86_Clk VFD_Clk 3.58MHz LED_St FL1 FL2 SPI_Clk 12 34 56 78 910 1112 1314 1516 1718 1920 2122 2324 2526 27

26、28 2930 3132 3334 3536 3738 3940 JP7 HEADER 2X20 Ser_Busy Ser_Clk Ser_Data Program Ser_En RS232_TXD RS232_RXD Ser_Rd Ser_Wr Z86_Int 12 34 56 78 910 1112 1314 1516 1718 1920 2122 2324 2526 2728 2930 3132 3334 3536 3738 3940 JP3 RECEPTACLE 2X20 VCC VCC Sys_Clk I/O 12 34 56 78 910 1112 1314 1516 1718 1

27、920 2122 2324 2526 2728 2930 3132 3334 3536 3738 3940 JP5 RECEPTACLE 2X20 VCC Vol_En Aud_En Aud_En SPI_Out SPI_Clk Vol_En OSD_En Comp_Vid_Sel S_Vid_Sel Vid_Det Sys_Clk Sys_Clk Vid_Det OSD_En S_Vid_Sel Comp_Vid_Sel I2C_Clk I2C_Data I2C_Data I2C_Clk LED_A LED_K M1_En CONT1 CONT2 CONT3 CONT4 M1_En LED_

28、A LED_K CONT1 CONT2 CONT3 CONT4 PLL_En 3.58MHz Mclk ADC Aud_Sys_En DAC_F DAC_C DAC_R Mclk DAC_F DAC_C DAC_R ADC Aud_Sys_En DSP_Rst MPX_Det Sta_Det SPI_In SPI_In Ser_Clk Ser_Clk Ser_Data Ser_Data Ser_En Ser_En Ser_Rd Ser_Rd Ser_Wr Ser_Wr EXTL EXTL Ser_Busy Ser_Busy DSP_En DSP_En SPDIF_En SPDIF_En Z86

29、_Int Z86_Int MPX_Det Sta_Det Program Program DSP_Rst Z86_Clk VFD_Clk LED_St Aud_En Vol_En OSD_En Sys_Clk I2C_Clk M1_En CONT1 CONT2 CONT3 CONT4 PLL_En 3.58MHz Mclk DSP_I2S_In Z2_SPDIF_In Ser_Clk Ser_En EXTL Ser_Busy DSP_En Z86_Int IR_Data Vid_Det ADC Aud_Sys_En DSP_Fst M2_En SPI_In Ser_Rd Ser_Wr SPDI

30、F_En MPX_Det Sta_Det Z86_Data I2C_Data Ser_Data Aud_O_Det Aud_I_Det Aud_O_Det Aud_I_Det Aud_O_Det Aud_I_Det Program VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC RS232_TXD RS232_RXD I2C_Clk I2C_Data DSP RECEPTACLE FRONT PANEL CONNECTORDALLAS CONTROLLER RECEPTACLE XILINX I/O PORTS DAC_F EXTL DAC_R DSP_Hckt

31、 SPI_Out DSP_I2S_In DSP_En DSP_Sckt DAC_C DSP_Fst SPI_In DSP_Rst SPDIF_En SPI_Clk VCC Z1/Z2_SPDIF_O IR_Data Done Program Done C56 .1uF C57 .1uF C58 .1uF C59 .1uF C60 .1uF C61 .1uF C62 .1uF C63 .1uF VCC VCC W16 +5 +C69 100uF/25V Amp_En Amp_En Amp_En M_PDN M_PDN R97 3.01K Q12 2N5210 Amp_En Amp_En W18

32、AON W28 FL2 W29 FL1 SPDIF_R_O SPDIF_R_O R37 26.7K Z1_SPDIF_In R22.49K R8 100 AVR Series II Digital Control B&K pn 12798a0D A 12 34 56 78 910 JP9 HEADER 2X5 DIGITAL I/O CONNECTOR DAC_X DAC_T DAC_T DAC_X DAC_T DAC_X Sync Sync Sclk Sclk DSP_Hckt Z2_SPDIF_In Z1_SPDIF_InZ1/Z2_SPDIF_O Z1/Z2_SPDIF_O SPI_Ou

33、t SPI_Clk Dig_En M2_En M2_En Z2_Rly_En Z1_SPDIF_In Z1_SPDIF_In Z1_SPDIF_In Dig_En DSP_Fst DSP_Fst DSP_Sckt DSP_Sckt Z1_Rly_En Z2_Rly_En Z2_Rly_En Z1_Rly_En Z1_Rly_En R132 10K R133 10K I2C_Clk I2C_Data OSD_En Comp_Vid_Sel Z1_V_Out V1_V_Out TAP_V_Out Z2_V_Out V2_V_Out V1_V_In V2_V_In V3_V_In DVD_V_In

34、CD_V_In SAT_V_In TAP_V_In S_Vid_Sel 12 34 56 78 910 1112 1314 1516 1718 1920 2122 2324 2526 2728 2930 3132 3334 3536 3738 3940 JP8 HEADER 2X20 Vid_Det M_Sys_Clk SPI_Clk SPI_Out VIDEO SYSTEM V1_V_In V3_V_In DVD_V_In CD_V_In SAT_V_In TAP_V_In Z1_V_Out Z2_V_Out V2_V_Out V1_V_Out V1_V_In V3_V_In DVD_V_I

35、n CD_V_In SAT_V_In TAP_V_In Z1_V_Out Z2_V_Out V2_V_Out V1_V_Out V2_V_In V2_V_In TAPE_V_Out TAPE_V_Out R53100 R54OPEN R57OPEN R5810K R7710K R7810K SPI_Clk SPI_Out R85OPEN Vcc 2 Vcc 11 Vcc 22 Gnd 1 Gnd 12 Gnd 21 SPI_Out 83 nc 3 SPI_Clk 82 nc 5 nc 4 Z2_SPDIF_In 14 Z2_Rly_En 77 Ser_Clk 70 ADC 7 Aud_Sys_

36、En 16 nc 44 DSP_Fst 19 IR_Data 35 DSP_I2S_In 17 nc 72 Z86_Int 56 Z86_Data 48 Z86_Clk 47 CONT2 69 CONT4 68 CONT1 66 CONT3 67 Init 41 nc 30 Gnd 31 Mode 32 Vcc 33 nc 60 nc 59 Ser_Busy 36 SPDIF_En 23 DSP_En 25 Vol_En 6 OSD_En 28 nc 38 Vcc 42 Gnd 43 LED_St 45 VFD_Clk 46 Aud_In_En 27 Dig_En 15 M1_En 81 PL

37、L_En 49 nc 34 SPI_In 18 Gnd 52 Done 53 Vcc 54 Program 55 I2C_Clk 10 I2C_Data 9 MPX_Det 50 Sta_Det 51 Aud_O_Det 80 Aud_I_DET 79 DSP_Hckt 24 Vcc 63 Gnd 64 Vid_Det 29 Z1_Rly_En 78 Ser_Wr 62 Ser_Rd 61 Ser_En 58 EXTL 20 Ser_Data 71 Mclk 8 C_Clk 73 Vcc 74 nc 75 Gnd 76 3.58MHz 40 Sys_Clk 57 Z1_SPDIF_In 13

38、nc 39 M2_En 84 SPDIF_R_I2S_O 26 Amp_En 65 nc 37 XILINX U18 XC10 Rd_Trig Rd_Data Rd_Data Rd_Trig R8610K Ser_Clk 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:7-Aug-2000 Sheet of File:C:B&k_DataBKPRODSeriesIIManufacPCB_Current12798a02.ddbDrawn By: 1 of 1 ESM 3 2 1 84 U5A LF353 5 6 7 U5

39、B LF353 -15 +15 R55 221 R56 221 R59 1M C31 .33uF C32 .33uF L3 3 LCM2 8 L4 4 LCM1 5 L5 6 L6 7 S 17 VSS 16 CLK 15 DI 14 CE 13 VEE 12 RST 18 VDD 19 L2 2 L7 9 L8 10 LCM3 11 R7 22 RCM2 23 R6 24 R5 25 RCM1 26 R4 27 R3 28 R2 29 R8 21 RCM3 20 L1 1 R1 30 U14 LC7821 TAP_R TAP_L +15 C33 .1uF Z1 AUDIO SELECTOR

40、R60 1M Sel_Rst Sel_Rst SPI_Out SPI_Clk Aud_En Aud_En SPI_Out SPI_Clk M1_En M1_En V1_A_In_R V1_A_In_L R61 1K R62 1K Aud_En SPI_Out SPI_Clk Sel_Rst V1_L V1_R V2_A_In_R V2_A_In_L R63 1K R64 1K V2_L V2_R V3_A_In_R V3_A_In_L R65 1K R66 1K V3_L V3_R DVD_A_In_R DVD_A_In_L R67 1K R68 1K DVD_L DVD_R CD_A_In_

41、R CD_A_In_L R69 1K R70 1K CD_L CD_R TUN_A_R TUN_A_L R71 1K R72 1K TUN_L TUN_R SAT_A_In_R SAT_A_In_L R73 1K R74 1K SAT_L SAT_R TAP_A_In_R TAP_A_In_L R751K R761K TAP_L TAP_R V1_L V2_L V3_L DVD_L CD_L TUN_L SAT_L DVDA_Rt V1_R V2_R V3_R DVD_R CD_R TUN_R SAT_R DVDA_Lt L3 3 LCM2 8 L4 4 LCM1 5 L5 6 L6 7 S

42、17 VSS 16 CLK 15 DI 14 CE 13 VEE 12 RST 18 VDD 19 L2 2 L7 9 L8 10 LCM3 11 R7 22 RCM2 23 R6 24 R5 25 RCM1 26 R4 27 R3 28 R2 29 R8 21 RCM3 20 L1 1 R1 30 U16LC7821 V1_L DVDA_Lt V3_L DVD_L CD_L TUN_L SAT_L TAP_L V1_R DVDA_Rt V3_R DVD_R CD_R TUN_R SAT_R TAP_R TAP_A_Out_R TAP_A_Out_L 3 2 1 84 U6A LF353 5

43、6 7 U6B LF353 -15 +15 R79 221 R80 221 R83 1M V1_R V1_L R84 1M V1_A_Out_R V1_A_Out_L 3 2 1 84 U7A LF353 5 6 7 U7B LF353 -15 +15 R87 221 R88 221 R91 1M V2_R V2_L R92 1M V2_A_Out_R V2_A_Out_L TAPB_R TAPB_L V1B_R V1B_L V2B_R V2B_L DVDA_S Rr_Aud TAPB_LTAPB_R Lr_Aud Lf_VOL Rf_VOL Lf_VOL Rf_VOL Rx_Aud Rx_V

44、OL Z2 AUDIO SELECTOR V2/Z2 LINE OUTPUT V1 LINE OUTPUT TAPE LINE OUTPUT -15 C41 .1uF C42 .1uF C43 .1uF C44 .1uF C45 .1uF +15-15 V2B_LV2B_R AVR Series II Audio Selector B&K pn 12798a0S A L3 3 LCM2 8 L4 4 LCM1 5 L5 6 L6 7 S 17 VSS 16 CLK 15 DI 14 CE 13 VEE 12 RST 18 VDD 19 L2 2 L7 9 L8 10 LCM3 11 R7 22

45、 RCM2 23 R6 24 R5 25 RCM1 26 R4 27 R3 28 R2 29 R8 21 RCM3 20 L1 1 R1 30 U25 LC7821 M1_En SPI_Out SPI_Clk Sel_Rst TAP_LTAP_R A_LfA_Rf Z1_A_LZ1_A_R TAPB_LTAPB_R DVDA_LrDVDA_Rr MISC Z1 AUDIO SELECTOR +15-15 Lt_AudRt_Aud V1B_LV1B_R L3 3 LCM2 8 L4 4 LCM1 5 L5 6 L6 7 S 17 VSS 16 CLK 15 DI 14 CE 13 VEE 12

46、RST 18 VDD 19 L2 2 L7 9 L8 10 LCM3 11 R7 22 RCM2 23 R6 24 R5 25 RCM1 26 R4 27 R3 28 R2 29 R8 21 RCM3 20 L1 1 R1 30 U26 LC7821 M2_En SPI_Out SPI_Clk Sel_Rst DVDA_LfDVDA_Rf Lf_VOLRf_VOL Lr_VOLRr_VOL A_LfA_Rf Lf_AudRf_Aud DVDA_LrDVDA_Rr MISC 5.1 AUDIO SELECTOR +15-15 C_VOLSub_VOL DVDA_CDVDA_S C_AudSub_

47、Aud C_VOL Sub_VOL C_VOL Sub_VOL Lr_VOL Rr_VOL Lr_VOL Rr_VOL Rx_VOL Rx_VOL Note: Lx_Aud is not switched M2_En M2_En DVDA_In_Lf DVDA_In_Rf DVDA_In_C DVDA_In_Lr DVDA_In_Rr DVDA_In_S DVDA_Lf DVDA_Rf DVDA_C DVDA_S DVDA_Lr DVDA_Rr HEADPHONE BUFFER R99 47.5 R100 47.5 R101 17.4K 3 2 1 84 U21A LF353 5 6 7 U2

48、1B LF353 -15 +15 R102 17.4K R103 17.4K R104 17.4K C70 .1uF C71 .1uF L_HEAD R_HEAD W19 L_Hp W8 GND W21 R_Hp LF RF 12 34 56 78 910 1112 1314 1516 1718 1920 2122 2324 2526 2728 2930 3132 3334 3536 3738 3940 JP1 RECEPTACLE 2X20 AUDIO SYSTEM -5 ADC Aud_Sys_En DAC_F DAC_C DAC_R DSP_Sckt DSP_Fst Lf_Aud Rf_

49、Aud C_Aud Sub_Aud Lr_Aud Rr_Aud +5 -5 +5 DAC_X DAC_T I2C_Clk I2C_Data Mclk Z1_A_L Z1_A_R Lt_Aud Rt_Aud Rx_Aud Lx_Aud Z1_SPDIF_In M_PDN R157 1K R158 1K R159 1K R160 1K R161 1K R162 1K Lx_Aud Lx_Aud I2C_Clk I2C_Data Aud_Sys_En DAC_X DAC_T I2C_Data I2C_Clk Aud_Sys_En DAC_X DAC_T DAC_F DAC_R DAC_C DAC_R Z1_SPDIF_In Z1_SPDIF_In DSP_Fst DSP_Fst DSP_Sckt DSP_Sckt V2B_L V2B_L V2B_R V2B_R V2_R V2_R V2_L V2_L DAC_C DAC_F RF RF LF LF ADC ADC Mclk Mclk 3 2 1 84 U30A LF353 -15 +15 R134 15K R1863.01K DVDA_Lt R188 15K R39 17.4K R189 10K 5 6 7 U30B LF353 R1873.01K DVDA_Rt R135 15K R190 15K R40 17.4K