BBK-AV220-avr-sm维修电路原理图.pdf

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1、 AV220 DIGITAL SURROUND HOME THEATRE AMPLIFIER SERVICE MANUAL SM 001/03 RadioFans.CN 收音机爱 好者资料库 CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK)NO USER - SERVICEABLE PARTS INSIDE The lightning flash with arrowhead equilateral triangle, presence of uninsulated dangerous vol

2、tagewithin the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. symbol, with an is intended to alert you to the The exclamation point within an important operating and maintenance (servicing) instructions in the literature accompanying the app

3、liance. equilateral triangle is intended to alert you to the presence of 220V AC,50/60Hz.Voltages : RadioFans.CN 收音机爱 好者资料库 Power AC220V/50Hz Max Power Consumption 1000W Out impedance Recommended impedance4- 8ohm The Separation Degree of All Channel 45dB Input Sensitivity/Impedance Input Sensitivity

4、/Impedance Radio Microphone Line in All channel Frequency Respondence All channel Signal- to- Noise Ratio All channel Distortion of Total Harmonic Output Power(RMS) All six channel state Standard Stereo:(20- 20KHz, 0.1%THD 6ohm) 130W+130W 110W5 0.1% 1kHz 10W 8ohm 20Hz- 20kHz +0.5,- 0.5dB 85dB 0.707v

5、/51kohm 0.707v/51kohm 0.5mv- 100mv/2kohm Av220 HOME THEATRE AMPLIFIER SPECIFICATIONS 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:3-Sep-2003 Sheet of File:E:BBKAV22SCH922MOD.SCHDrawn By: 1 2 3 U2A 74HC02 4 5 6 U2B 74HC02 8 9 10 U2C 74HC02 11 12 13 147 U2D 74HC02 R2 2K2 R3 4K7 R4 47K

6、 R5 10K C3 33p C4 100n C6 33p C19 470p C17 100n C16 100n C15 100n C8 100n C1 100n C10 100n C9 4n7 C5 100n C23 100n C21 100n C22 100n C2 1n C7 100n C20 100n C18 100n C11 100n C12 100n C14 22p C13 22p 3 2 1 84 U1A LM358 5 6 7 U1B LM358 R7 47K R11 1M R33 4K7 R36 18K R34 18K R49 4K7 R10 100R R50 1R R48

7、1K5 R47 330R R52 1R R51 3R R35 4K7 R30 470R R54 3R R12 10K R53 1R R45 3R R46 3R R29 470R R9 10K R1 100K R6 10K R8 1K D1 1N4148 D2 IN4148 +5V1 AVDD 1 PCC 2 AVSS 3 M/S 4 DDIN 5 TEST 6 /IC 7 VSS 8 XO 9 XI 10 MCK 11 VDD 12 SDO 13 SDBCK 14 SDWCK 15 SDMCK 16 VSS 17 SYNC/U 18 FS128/C 19 DBL/V 20 ERR/BS 21

8、/LOCK 22 INT 23 VDD 24 /CS 25 SO 26 SI 27 SCK 28 U3 YSS917 +5V1 CLK CDI CDO 917_CE 256FS WCK XI LR BCK Y1 24.576MHz /IC +5V1 DSIG1 VDD1 1 RAMCEN 2 RAMA16 3 RAMA15 4 SDIB0 5 SDIB1 6 SDIB2 7 XI 8 XO 9 VSS 10 AVDD 11 SDIB3 12 TEST 13 TEST 14 OVFB 15 DTSDATA 16 AC3DATA 17 SDOB3 18 CPO 19 AVSS 20 VDD2 21

9、 SDOA2 22 SDOA1 23 SDOA0 24 RAMA14 25 RAMA13 26 RAMA12 27 RAMA11 28 RAMA10 29 VSS 30 VDD1 31 OPORT0 32 OPORT1 33 OPORT2 34 OPORT3 35 OPORT4 36 OPORT5 37 OPORT6 38 OPORT8 39 VSS 40 VDD2 41 RAMA9 42 RAMA8 43 RAMA7 44 SDOB2 45 SDOB1 46 SDOB0 47 SDBCK1 48 SDWCK1 49 VSS 50 VDD2 51 NONPCM 52 CRC 53 MUTE 5

10、4 KARAOKE 55 SURENC 56 /SDBCK0 57 RAMA6 58 RAMA5 59 VSS 60 RAMA4 61 /IC 62 TEST 63 RAMA3 64 /CSB 65 /CS 66 SO 67 SI 68 SCK 69 RAMA2 70 VDD1 71 RAMD0 72 RAMD1 73 RAMD2 74 RAMD3 75 RAMD4 76 RAMD5 77 RAMD6 78 RAMD7 79 VSS 80 VDD2 81 SDWCK0 82 SDBCK0 83 SDIA0 84 SDIA1 85 RAMA1 86 RAMA0 87 RAMWEN 88 RAMO

11、EN 89 VSS 90 VDD2 91 IPORT7 92 IPORT6 93 IPORT5 94 IPORT4 95 IPORT3 96 IPORT2 97 IPORT1 98 IPORT7 99 VSS 100 U4 YSS912 SDOS 1 I2C 2 SMUTE 3 BICK 4 LRCK 5 SDTI1 6 SDTI2 7 SDTI3 8 SDTO 9 DAUX 10 DFS 11 NC 12 DZFE 13 TVDD 14 DVDD 15 DVSS 16 PDN 17 TST 18 NC 19 ADIF 20 CAD1 21 CAD0 22 LOUT3 23 ROUT3 24

12、LOUT2 25 ROUT2 26 LOUT1 27 ROUT1 28 LIN- 29 LIN+ 30 RIN- 31 RIN+ 32 DZF2/OVF 33 VCOM 34 VREFH 35 AVDD 36 AVSS 37 DZF1 38 MCLK 39 P/S 40 DIF0/CSN 41 DIF1/SCL/CCLK 42 LOOP0/SDA/CDTI 43 LOOP1 44 U5 AK4527 5 6 7 U8B JRC4558D 5 6 7 U7B JRC4558D 5 6 7 U9B JRC4558D 3 2 1 84 U9A JRC4558D +5V2 +3V3+3V3 +5V2

13、LR SLSR CSW +3V3 +3V3 +5V2 D7 D6 D5 D4 D3 D2 D1 D0 CLK CDI CDO MCE SCE /IC D4 D5 D6 D7 D0 D1 D2 D3 +3V3 C45 220p C54 100p C48 100n C53 100p C64 100n C27 100n C47 100n C46220p C25 100n C26 100n C59 100n C24 100n +5V2 NC 1 A16 2 A14 3 A12 4 A7 5 A6 6 A5 7 A4 8 A3 9 A2 10 A1 11 A0 12 I/O0 13 I/O1 14 I/

14、O2 15 GND 16 I/O3 17 I/O4 18 I/O5 19 I/O6 20 I/O7 21 /CE1 22 A10 23 /OE 24 A11 25 A9 26 A8 27 A13 28 /WE 29 CE2 30 A15 31 VCC 32 U12 128KX8SRAM +3V3 A14 A13 A12 A11 A10 A7 A8 A9 A6 A5 A3 A2 A1 A0 /WE /OE A4 A15 A16 /CE /OE /CE /WE A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 A15 A13 A8 A9 A11 A10 A16 +5V C63 100

15、uF6V3 C67 100uF6V3 C66 100uF6V3 C65 100uF6V3 Q1 NPN U13 TL431 +3V3 +5V1+5V2 CSW SLSR LR&DIR ADOUT BCK WCK LR&DIR ADOUT BCK WCK /IC +5V4 C68 10uF16V C61 10uF16V C62 10uF16V C43 10uF16V C31 10uF16V C36 10uF16V C44 10uF16V C33 10uF16V C32 10uF16V C34 10uF16V +5V4 C69 100uF6V3 +5V5 +OP -OP R41 4K7 R44 1

16、8K R42 18K R43 4K7 5 6 7 U11B JRC4558D 3 2 1 84 U11A JRC4558D C57 220p C58220p C55 10uF16V C56 10uF16V +OP -OP R37 4K7 R40 18K R38 18K R39 4K7 5 6 7 U10B JRC4558D 3 2 1 84 U10A JRC4558D C51 220p C52220p C49 10uF16V C50 10uF16V +OP -OP ROUT1 LOUT1 ROUT2 LOUT2 LOUT3 ROUT3 ROUT1 LOUT1 ROUT2 LOUT2 ROUT3

17、 LOUT3 ROUT LOUT SROUT SLOUT SWOUT COUT +VOP -VOP +OP -OP C60 100p C28 100n C39 100n C30 100n C41 1n C40 100n C35 100n R27 10K R24 10K R13 10K R19 22K R20 22K R14 10K R23 3K3 R22 4K7 R21 4K7 R17 22K R18 22K R15 10K R16 10K X0 12 X1 13 Y0 2 Y1 1 Z0 5 Z1 3 C 9 INH 6 A 11 B 10 X 14 Y 15 VEE 7 VSS 8 VDD

18、 16 Z 4 U6 4053 -OP +OP R32 470R R31 470R 3 2 1 84 U8A JRC4558D 3 2 1 84 U7A JRC4558D C42 1n R28 10K R26 10K R25 3K3 -OP +OP+5V5 +5V5 RIN OK1 LIN OK2 C29 10uF16V +5V5 +5V4 +5V4 256FS CLK CDI 1 2 3 4 5 J1 CON5 1 2 3 4 5 6 7 8 9 10 11 13 12 J2 CON13 1 2 3 4 5 6 7 8 9 10 11 J3 CON11 +VOP -VOP GND +5V G

19、ND SWOUT SLOUT SROUT LOUT COUT ROUT RIN LIN GND OK1 OK2 KOK CDI CDO MCE SCE /IC CLK 917_CE GND DSIG1 KOK 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:3-Sep-2003 Sheet of File:E:BBKAV22SCHMIAN.SCHDrawn By: R147K R2 47K R547K R6 47K R41K R31K R81K R71K R947K R10 47K R121K R111K R13 47

20、K R14 47K R161K R151K R18 1K R17 1K R1947K R21 1K R20 1K R22 47K R241K R23 1K R0 L0 R1 L1 R2 L2 R3 L3 5.1IN_R 5.1IN_L R5 L5 R6 L6 R0 R1 R2 R3 5.1IN_R R5 R6 L0 L1 L2 L3 5.1IN_L L5 IN B IN A R37 100K C1 2.2uF16V R39 100K R41 22K Q2 9015 Q1 9014 R43 4K7 +7.5V -7.5V R38 100K C4 2.2uF16V R40 100K R42 22K

21、 Q4 9015 Q3 9014 R44 4K7 +7.5V -7.5V C2 104 C3 104 C5 104 C6 104 R2547K R271K R261K R_OUT L_OUT R_OUT L_OUT R28 47K R301K R291K R3147K R331K R32 1K VIN1 1 VOUT1 2 GND 3 DATA 4 CLOCK 5 VCC 6 VOUT2 7 VIN2 8 U3 M62429 MIC_EN R50 4K7 R51 150R R49 4K7 C11 100uF6V3 U16 TL431 +7.5V A0 1 A1 2 A2 3 GND 4 SDA

22、 5 SCK 6 WP 7 VCC 8 U14 24C02 SDA DISP_CLK RMT USB_EXT TUNER_EXT C67 22p C66 22p Y1 12MHz C68 100n +5V C69 10uF16V R122 4K7 D4 IN4148 +5V TO MIC_AMP +5V C70100n R119 1M EA/VP 31 X1 19 X2 18 RESET 9 RD 17 WR 16 INT0 12 INT1 13 T0 14 T1 15 P10 1 P11 2 P12 3 P13 4 P14 5 P15 6 P16 7 P17 8 P00 39 P01 38

23、P02 37 P03 36 P04 35 P05 34 P06 33 P07 32 P20 21 P21 22 P22 23 P23 24 P24 25 P25 26 P26 27 P27 28 PSEN 29 ALE/P 30 TXD 11 RXD 10 VCC 40 GND 20 U12 80C51 1 2 3 4 J10 CON4 +10V 5.1OUT_R 5.1OUT_L 5.1IN_C 5.1OUT_C 5.1IN_SR 5.1OUT_SR 5.1IN_SL 5.1OUT_SL R34 47K R361K R351K 5.1IN_LFE 5.1OUT_LFE 5 4 BNC4C 6

24、 4 BNC4D 2 1 BNC4A 3 1 BNC4B +7.5V -7.5V GND +5V GND 5.1OUT_LFE 1 2 3 4 5 J13 CON5 1 2 3 4 5 6 7 8 9 10 11 13 12 J14 CON13 5.1OUT_SL 5.1OUT_SR 5.1OUT_L 5.1OUT_C 5.1OUT_R OK_OUT GND OK_IN 1 2 3 4 5 6 7 8 9 10 11 J15 CON11 OK_SELECT CDI CD_OUT CE_912_MAIN CE_912_SUB /IC CLK CE_YSS917 GND DIG_IN C7 2.2

25、uF16V C8 2.2uF16V C9 2.2uF16V C10 2.2uF16V R45 47K R46 47K R48 1K R47 1K C12 100p C13 100p SDA CLK_62429 3 2 1 84 U4A TL072 5 6 7 U4B TL072 R52 1M C14 22P C15 22p R53 1M 1 2 3 4 5 J4 CON5 C18 10uF16V C19 10uF16V R54 10K R55 10K R56 10K R57 10K 3 2 1 84 U5A TL072 5 6 7 U5B TL072 R58 10K R59 10K R61 1

26、0K R60 10K C20 10uF16V C21 10uF16V C22 10uF16V +7.5V -7.5V +7.5V -7.5V X0 12 X1 13 Y0 2 Y1 1 Z0 5 Z1 3 C 9 INH 6 A 11 B 10 X 14 Y 15 VEE 7 VSS 8 VDD 16 Z 4 U6 4053 R62 22K R63 22K R64 1K R65 1K Q7 9014 Q6 9014 R67 22K R66 22K R69 22K R70 22K OUT3 2 OUT2 3 OUT1 4 AVDD 5 SWIN 6 GNDS 7 SRIN 8 SLIN 9 OU

27、T4 1 GNDC 10 CIN 11 GNDR 12 RIN 13 GNDL 14 LIN 15 BYPASSR 16 BYPASSL 17 LTRE 18 LBASS3 19 LBASS2 20 LBASS1 21 RBASS1 22 RBASS2 23 RBASS3 24 RTRE 25 CR2 26 CR1 27 CL2 28 CL1 29 AVSS 30 LOUT 31 ROUT 32 SLOUT 34 SROUT 35 SW OUT 36 AGND 37 DGND 38 LATCH 39 DATA 40 CLK 41 COUT 33 DVDD 42 U7 M62446FP R68

28、22K +7.5V Q5 9015 +7.5V D1 1N4146 MUTE OK_MIX -7.5V C16 100n C17 100n C24 2.2uF16V C25 2.2uF16V C26 2.2uF16V C27 2.2uF16V 5.1IN_C 5.1IN_SR 5.1IN_SL 5.1IN_LFE L6 GND 1 2 3 4 5 6 J3 CON6 MIC_IN1 MIC_IN2 +7.5V -7.5V C33 224n C34 15n C32 10nR71 10K R72 10K 3 2 1 84 U8A 4558D 5 6 7 U8B 4558D R73 22K -7.5

29、V+7.5V C53 220p OK_IN R75 *10K R76 *10K R74 *10K 5.1OUT_SL 5.1OUT_SR C54 2.2uF16V R99 47K R77 22K R79 4K7 C56 6n8 C55 100p R78 10K C28 2.2uF16V R80 1K +7.5VC29 100n C31 100n C30 100n +5V -7.5V C35 2.2uF16V C36 2.2uF16V C37 2.2uF16V C38 2.2uF16V SCL SDA CE_62446 3 2 1 84 U9A 4558D R83 10KC43 220P R82

30、 1K C47 10uF16V R85 1K R84 22K Q8 9014 1 2 3 4 5 6 7 J5 CON7 GND R86 22K 5 6 7 U9B 4558D R89 10KC44 220p R88 1K C48 10uF16V R91 1K R90 22K Q9 9014 R92 22K 3 2 1 84 U10A 4558D R95 10K C45 220p R94 1K C49 10uF16V R97 1K R96 22K Q10 9014 R98 22K 5 6 7 U10B 4558D R103 10K C46 220p R102 1K C50 10uF16V R1

31、05 1K R104 22K Q11 9014 R106 22K C_OUT LFE_OUT SL_OUT SR_OUT RR LL R107 33K R108 33K R109 33K R110 33K R111 33K R112 33K R_R L_L 5.1IN_C 5.1IN_SR 5.1IN_SL 5.1IN_LFE 3 2 1 84 U11A 4558D C61 2.2uF16V R113 470K D2 1N4148 D3 1N4148 5 6 7 U11B 4558D R114 10K C62 2.2uF16V R115 100R R116 10K -7.5V +7.5V R1

32、17 1K R118 22K D5 1N4148 C63 10uF16V SIGNAL_DETECT R125 10K R124 1K5 R123 10K Q15 9015 /QS 10 QS 9 Q8 11 Q7 12 Q6 13 Q5 14 Q4 7 Q3 6 Q2 5 Q1 4 STR 1 D 2 CLK 3 OE 15 VDD 16 VSS 8 U13 4094 Q14 9014 Q13 9014 Q12 9014 R128 10K R127 10K R126 10K R130 10K R129 10K R131 10K +7.5V SCL SDA CE_4094 +7.5V MUTE

33、 IN B IN A OK_MIX +12V STANDBY STANDBY CLK_62429 SCL SDA CE_4094 SIGNAL_DETECT CE_62446 TO_MAIN_AMP 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 J1 HEADER25 5.1IN_L 5.1IN_C 5.1IN_R 5.1IN_LFE 5.1IN_SR 5.1IN_SL CLK CE_YSS917 OK_SELECT/IC MIC_EN CE_912_MAIN CD_OUT CDI CE_912_SUB DI

34、SP_CLK TO RS232 1 2 3 4 5 6 7 8 9 J2 HEADER 9*c R152 1K5*c R153 4K7*c R154 4K7*c R150 1K5*c R151 4K7*c Q21 9015*c Q20 9014*c D16 IN4148*c D15 1N4148*c C71 10uF16V*c +5V +5V C82 100P TO DIS BOARD BMQ1_A BMQ1_B BMQ2_B BMQ2_A DISP_DOUT DISP_CLK DISP_STB SDA 1 2 3 4 5 6 7 8 9 10 11 12 J6 CON12 BMQ1_A BM

35、Q1_B BMQ2_B BMQ2_A RMT GND +5V DISP_DOUT DISP_STB +10V SCL RADIO_CS RADIO_DO SDA RADIO_MUTE RADIO_TNNED 1 2 3 4 5 6 7 J9 CON7 RADIO_CS RADIO_DO RADIO_MUTE RADIO_TNNED TO RADIO OSD_V/H CE_OSD DIG_IN +5V SDA SCL +7.5V GND -7.5V TO OSD OSD_V/H CE_OSD R120 3KR121 3K +5V R137 4K7 1 2 J12 CON2Q19 8050 R14

36、4 0R5 D11 1N4002D12 1N4002 D13 1N4002 D14 1N4002 C73 10n C80 3300uF16V IN 1 G 2 OUT 3 U17 7805 C81 100uF16V +5V +12V D7 1N4002 D8 1N4002 D9 1N4002 D10 1N4002 C74 2200uF25V C75 2200uF25V C72 10n U15 TL431 R139 3K9 R140 2K Q17 NPN R138 1K*a Q18 PNP Q16 9015 R141 1K*a R143 3K9 R142 4K7 C77 1000uF16V C7

37、8 1000uF16V 1 2 3 4 5 J11 CON5 R145 0R5 R146 0R5 +7.5V -7.5V IN 1 G 2 OUT 3 U18 7810*b C79 100uF16V*b +10V +7.5V -7.5V +7.5V -7.5V C23 10uF16V C51 100n C52 100n C64 100n C65 100n 1 2 3 4 5 6 7 8 9 10 11 12 J7 CON12 1 2 3 4 J8 CON4 +10V SELECT_A SELECT_B R81 22K R87 22K R93 22K R101 22K 2 1 BNC1A 2 1

38、 BNC2A 3 1 BNC1B 3 1 BNC2B 5 4 BNC1C 5 4 BNC2C 6 4 BNC1D 6 4 BNC2D 8 7 BNC1E 8 7 BNC2E 9 7 BNC1F 9 7 BNC2F 9 7 BNC3F 8 7 BNC3E 6 4 BNC3D 5 4 BNC3C 3 1 BNC3B 2 1 BNC3A C83 100n LL RR R155 4K7 R156 4K7 R157 4K7 R158 4K7 R160 4K7 R161 4K7 R162 4K7 C39 100n C40 100n R132 100R R133 100R M1M2 AC11V_0.5A A

39、C13VX2_0.3A X0 12 X1 14 X2 15 X3 11 Y0 1 Y1 5 Y2 2 Y3 4 INH 6 A 10 B 9 X 13 Y 3 VEE 7 VSS 8 VDD 16 U1 4052 X0 12 X1 14 X2 15 X3 11 Y0 1 Y1 5 Y2 2 Y3 4 INH 6 A 10 B 9 X 13 Y 3 VEE 7 VSS 8 VDD 16 U2 4052 RR LL IN AA IN BB R_R R_R L_L L_L R148 47K R147 47K IN AA IN BB *a:if input AC13VX2,it is 680R *b:

40、not used if no tuner *c:not used if no RS232 *d:connet to R_R *d:connet to L_L C84 100uF16V C76 100uF16V R134 10K R13510K IN B IN A 1234 A B C D 4321 D C B A Title NumberRevisionSize A4 Date:3-Sep-2003 Sheet of File:E:BBKAV22SCHS-VIDEO.SCHDrawn By: 1 2 3 4 5 JP903 5PIN X0 12 X1 14 X2 15 X3 11 Y0 1 Y

41、1 5 Y2 2 Y3 4 INH 6 A 10 B 9 X 13 Y 3 VDD 16 VSS 8 VEE 7 VEE 7 VSS 8 VDD 16 2IC901 CD4052 Q903 C9014 R11 470K + CE905 10u/16V R9 68R + CE907 220u/16V +CE908 22u/16V R10 470R R911 68R R912 1K +15V B A -15V GND +15V Q803 C9014 R2 470K + CE805 10u/16V R3 68R + CE807 220u/16V +CE808 22u/16V R1 470R R811

42、 68R R812 1K +15V 2 54 3 1 SVID4 S-VID 2 54 3 1 SVID1 S-VID 2 54 3 1 SVID3 S-VID 2 54 3 1 SVID2 S-VID 2 54 3 1 SVDOUT S-VID R4 68R R8 68R R5 68R R13 68R R14 68R R15 68R R16 68R R17 68R -5V +5V R6 2K2 D1 5V6/1/2WCE2 10u/16V R7 2K2 D2 5V6/1/2WCE1 10u/16V +15V -15V +5V -5V 12p 1p 14p 5p 15p 2p 11p 4p 1

43、234 A B C D 4321 D C B A Title NumberRevisionSize A4 Date:3-Sep-2003 Sheet of File:E:BBKAV22SCHJP007-01.SCHDrawn By: CP1 1 TESTA 2 C/S/ 3 SCK 4 SDA 5 AC 6 VDD2 7 CVout 8 LECHA 9 CVin 10 Vss 11 TESTC 12 TESTB 13 P0 14 P1 15 Vss 16 OSCIN 17 CP2 18 HOR 19 VDD1 20 U2 JP00702 Q9 CS9014 Q2 CS9015 R29 56R3

44、2 3K9 R31 20K R27 510 R23 1.5K R151K C22 56P C21 103 C13 224 C16470p C20 103 C17 47UF/16V C3 47u/16V C23 220u/16V C14 10u/16V Clamp sync chip to 1.5V +5V +5V1 +5V PRE_CLK PRE_DATA OSD_CS R34 10K OSD_OSC V_MIX OUT 1 2 3 4 5 6 7 8 9 10 11 12 J1 2.5MMX12 +5V 1 2 3 4 5 J2 2.5MMX5 GND +5V B A DISG R26 10

45、 R33 220 Q3 CS9018 R10 33K +5V R11 1K R2 100 C9 22P R1 2.2K D1 1N4148 D2 1N4148 C4 104 C5 104 3.58MHZ XTAL C7 104 C8 75P C6 104 R25 10 +5V Q6 CS9014 Q7CS9014 R14 1K Q8 CS9014 R22 68 R19 2K C19 103 R30 20K R12 1K R13 1K C15 101 R9 1.5K +5V R8 1.5K +5V Q1 CS9015 +5V R24 5.1K SYNC C18 103 C12 22u/16V Q

46、4 CS9018 R16 1K R3 100 +5V C10 100u/16V Q5 CS9018 R18 2K R20 3.3K R21 1.5K C11 22u/16V R28 910 V IN R17 1K PRE_DATA DISG OSD_CS +5V PRE_CLK B A +9V V_SELECT GND -9V DSIG2 DVD1 4 2 5 3 6 S1 BNC3Z V_MIX OUT DVB VCD AUX 1 3 2 4 S2 BNC2Z X0 12 X1 14 X2 15 X3 11 13 U1A CD4052 AUX VCD DVD DVB Y0 1 Y1 5 Y2

47、 2 Y3 4 3 U1B CD4052 R4470 R5470 R6470 R7470 INH 6 A 10 B 9 VDD 16 VSS 8 VEE 7 U1C CD4052 C1 47u/16V +9V A B -9V C2 47u/16V V IN V INO +5V2 C25 47UF/16V +5V C24 104 R35 10K C26 100u/16V 1234 A B C D 4321 D C B A Title NumberRevisionSize A4 Date:3-Sep-2003 Sheet of File:E:BBKAV22SCHTONE.SCHDrawn By:

48、C25 0.22u/16V C13 100u/10V R59 1K8 C21 473 C17 15N C22 683 R17 220 R51 3K3 R60 220 R46 150 R57 680 R55 3K3 C26 0.22u/16V C3 100u/10V R62 1K8 C24 473 C18 15N C23 683 R18 220 R58 3K3 R61 220 R47 150 R56 1K R45 3K3 1 2 3 4 5 J1 CON5 OP1_OUT OP2_OUT OP1_- OP2_- GND OP1_OUT OP2_OUT 13 2 VR3A VRDB 46 5 VR

49、3B VRDB 13 2 VR4A VRDB 46 5 VR4B VRDB 1 2 3 4 5 6 SW2 SWDPST R54 1K2 R50 10K R49 1K2 R48 10K OP1_OUTOP2_OUT OP1_-OP2_- OP1INOP2IN OP1IN OP2IN C1 100u/16 C2 100u/16 C4 104 R1 100 1234 A B C D 4321 D C B A Title NumberRevisionSize A Date:3-Sep-2003 Sheet of File:E:BBKAV22SCHMICROP1.SCHDrawn By: R144 10K R186 470R C134 4u7/16V C120 100p R190 1K5 5 6 7 IC16B NE5532 R192 22K C132 22p R100 470R C135 10u/16V R164 4K7 3 2 1 6 5 4 7 8 9 JACK2 MICJACK R145 10K R187 470R C136 4u7/16V C121 100p R191 1K5 3 2 1 48 IC16A NE5532 R19