BBK-AV310T-av-sch 电路图 维修手册.pdf

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1、RadioFans.CN 收音机爱 好者资料库 F E D C B A F E D C B A 12345 6 123 4 5 6 东莞市步步高视听电子工业有限公司 BBK 更 改数 量更改单号签 名日 期 设 计审 核批 准 第 张共 张版次： 标 准 化 AV310T功放板功放板 C101 10u/16V C103 47u/100V C105 100u/16V C107 47u/100V R105 2K R106 2K R10747 R108 47 V102 2N5551 V103 2N5551 V104 2N5551 VD102 1N4148 VD103 1N4148 R110 510

2、R109 1K R112 1K R116 150 R113 150 R121 33K R111 33K/0.5W V105 2N5401 V107 2N5551 V106 2N5551 V132 C2073 V112 2SD1047C V113 2SB817C V133 A940 R1142.7K R115 1.2K C108 33p/500V C109 47n R117 100/0.5W R125 100/0.5W R120 100/0.25W R122 100/0.25W R126 0.25/7W R127 0.25/7W R104 47K R103 1K R102 100K C104 2

3、20p Vc+ Vc- V101 S8050 R128 4.3K R130 4.3K R129 2.7K C110 1u/16V V114 2N5551 VD104 1N4148 R101 10K C111 10u/16V C113 47u/100V C115 100u/16V C117 47u/100V R135 2K R136 2K R13747 R138 47 V117 2N5551 V118 2N5551 V119 2N5551 VD105 1N4148 VD106 1N4148 R140 510 R139 1K R142 1K R146 150 R143 150 R151 33K R

4、141 33K/0.5W V120 2N5401 V122 2N5551 V121 2N5551 V134 C2073 V127 2SD1047C V128 2SB817C V135 A940 R1442.7K R145 1.2K C118 33p/500V C119 47n R147 220/0.5W R155 220/0.5W R150 100/0.25W R152 100/0.25W R156 0.25/7W R157 0.25/7W R134 47K R133 1K R132 100K C114 220p Vc+ Vc- V116 S8050 R158 4.3K R160 4.3K R

5、159 2.7K C120 1u/16V V129 2N5551 VD107 1N4148 R131 10K 1 2 4 53 N104 LM1875R171 27K C126 68p R170 820 C125 22u/16V R169 47K Vs+ Vs- C128 47n C127 47n 3 VDDB 15 1 MUTEA 6 MUTEB 11 7 8 GNDB 10 GNDA 5 VEE 4 12 13 VDDA 2 STAN-A 9 STAN-B 14 A B OUTA OUTB N105 LM1876 R175 24K R179 24K R178 820 R177 1K R17

6、3 1K R174 820 R172 47K R176 47K C132 22u/16V C131 22u/16V C134 104 C135 104 C136 104 Vs+ Vs- Vs+ 1 2 3 4 5 6 7 8 9 XS8 CON9 1 2 3 XS5 CON3 VD111 1N5404 VD114 1N5404 VD112 1N5404 VD113 1N5404 C143 0.1u C144 0.1u C141 4700u/35V C142 4700u/35V C139 47n C140 47n FL101 T6.3A250V FL102 T6.3A250V Vc- Vc+ G

7、ND V115 2N5401 R161 4.7K R162 10K V131 S8050 C124 10u/16V R167 4.7K R163 10K Vs+ V130 2N5401 R165 4.7K R168 10K C130 1u/50VC129 1u/50V C121 22u/16V C122 22u/16V SWM P_Rly P_RC L1 R1 C1 SL1 SR1 GND P_LRM P_CSM GND L2 R2 C2 SL2 SR2 SWM Rly0 P_RC Over C148 100u/16V C149 100u/16V Vin 1 GND 2 Vout 3 N101

8、 L7812 Vin 2 GND 1 Vout 3 N102 L7912 C150 47n C151 47n Vs+ Vs- +12V -12V 1 2 3 4 XP6 CON4 DGND DGND VD101 1N4148 R166 4.7K C123 22u/16V R164 33K 1 2 3 4 5 6 7 XP9 CON7 1 2 3 4 5 XP13 CON5 1 2 3 4 XS7 CON4 R184 15/2W C157 471 C158 471 C159 10u/100V C155 47p C156 47p R182 33K R185 33K C146 220u/25V C1

9、47 220u/25V R183 15/2W RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 F E D C B A F E D C B A 12345 6 123 4 5 6 东莞市步步高视听电子工业有限公司 BBK 更 改数 量更改单号签 名日 期 设 计审 核批 准 第 张共 张版次： 标 准 化 ()解码板原图 一解码板原图 一 2310TA-1 GPIO7 8 GPIO6 9 GPIO5 10 GPIO4 11 VD2 12 DGND2 13 GPIO3 14 GPIO2 15 GPIO1 16 GPIO0 17 DC 38 DD 37

10、 /RESET 36 AGND 35 VAA 34 FILT1 33 FILT2 32 CLKSEL 31 CLKIN 30 LR2 29 DIN 6 EMOE 5 EMWR 4 XMT958 3 DGND1 2 VD1 1 MCLK 44 BCK 43 WCK 42 AD0 41 /CS 18 DOUT 19 /INT 20 EXTMEM 21 SDATAN 22 VD3 23 DGND3 24 BCK1 25 WCK1 26 CMPDAT 27 AD1 40 AD2 39 BCK2 28 SCK 7 CS4923 N105 CS49326-3 1 2 3 4 5 6 7 8 9 XS17

11、CON9 R120 10K R121 10K R123 10K R10351 C154 104 C143 104 C108 104 C119 103 C118 104 C110 104 C131 100U/16V C116 1U/16V C122 1u/16V C117 2.2U/16V R108 4K7 R109 100 R111 10K RX1 RX2 RX3 R105 4K7 R10651 C124 104 C123 1U/16V C126 104 C125 1U/16V R113 100 C111 104 R119 1.2K C115 104 C121 104 DSPRST SCK S

12、DA INT_49 DIGITAL INPUT C113 104 1 2 3 4 5 6 7 XS14 CON7 C109 104 Ain-R Ain-L G101 12.288MHz C104 30P C103 30P R101 1M R102 51 XTAL2 XTAL1 C112 1U/16V SDA/CDOUT 1 AD0/CS 2 EMPH 3 RXP0 4 RXN0 5 VA+ 6 AGND 7 FILT 8 RST 9 RMCK 10 RERR 11 RXP1 12 RXP2 13 RXP3 14 RXP4 15 OSCLK 16 OLRCK 17 SDOUT 18 INT 19

13、 U 20 OMCK 21 DGND 22 VD+ 23 H/S 24 RXP5 25 RXP6 26 AD1/CDIN 27 SCL/CCLK 28 N106 CS8415ASO R114100 R112100 8415_INT C114 472 R118 10K R122 33K C120 471 12 147 N101A 74HC04 34 N101B 74HC04 C105 104 VD3.3 R10451 X01 X02 X01 X02 DA_L DA_R DA_SL DA_SR DA_C DA_SW DA_L DA_R DA_SL DA_SR DA_C DA_SW VA5 DARS

14、T L101 FB VLS 1 SDIN1 2 SDIN2 3 SDIN3 4 SCLK 5 LRCK 6 MCLK 7 VD 8 GND 9 /RST 10 DIF1 11 DIF0 12 M1 13 VLC 14 M2 15 FILT+ 16 VQ 17 MUTEC3 18 AOUTB3 19 AOUTA3 20 AGND 21 VA 22 AOUTB2 23 AOUTA2 24 MUTEC2 25 AOUTB1 26 AOUTA1 27 MUTEC1 28 N107 CS4360 M0 1 MCLK 2 VL 3 SDOUT 4 GND 5 VD 6 SCLK 7 LRCK 8 RST

15、9 AINL 10 VQ 11 AINR 12 VA 13 REF_GND 14 FILT+ 15 M1 16 N108 CS5340 DIN1 SCLK1 LRCK1 LRCK2 SCLK2 DIN2 SDIN1 SDIN2 SDIN3 C145 104 C144 1u/16V C146 104 C147 1u/16V C150 104 C148 1U/16V C153 104 C152 1U/16V C151 104 C149 1U/16V VA5 C128 104 VD3.3 C127 104 VD3.3 VD5 VD3.3 VD2.5 VD3.3 VD5 C158 104 C134 1

16、00U/16V C130 104 C129 100U/16V C135 1U/16V VD2.5 VD5 +5VD Ain-R Ain-L Lin Rin R107 51 VD3.3 L103 P14 P15 P16 P17 R110 51 Vin 3 GND 1 Vout 2 N110 BM1117-2.5 Vin 3 GND 1 Vout 2 N109 BM1117-3.3 L102 FB L111 FB L105 FB L106 FB L112 FB L113 FB L114 FB C106 1U/16V C155 1U/16V L104 FB C159 104 C157 1U/16VL

17、107 FB VD2.5 VD5 R154470 R151100 R150100 R152100 R153100 R155 51 R15910K R156 51 R161 51 V102 5551 VD102 5.6V R157 2.2K R158 100K C132 10U/16V C136 104 C133 47U/16V +12VVA5 1 2 3 4 5 6 7 8 9 RR105 8*4.7K VD3.3 R165 0Ohm C156 104 56 N101C 74HC04 1312 N101F 74HC04 1110 N101E 74HC04 KM P_RLYC P_LRM P_S

18、CM DIN2 SCLK2 LRCK2 SDASCK DIN1 LRCK1 SCLK1 LRCK SCLK MCLK SDA SCK DARST MCLK LRCK SCLK C107 10U/16V C161 104 49326_DI 49326_CK 49326_CS 49326_DO C203 30P C202 30P C204 30P C205 30P C206 30P R162 470 R163 0Ohm VA5VD5 VD103 1N4004 VD2.5VD3.3 R164 470 8415_ERR R115 75 R116 75 R117 75 C207 104 C208 104

19、 C209 104 C210 104 PH_SW PH_SW C101 104 L118 1UH L119 1UH R181 47K C217 104 R180 470 C216 101 C218101 98 N101D 74HC04 L116 1UH L117 1UH R179 47K C214 104 R178 470 C213 101 C215101 R183 DNS R182 DNS VD5 L121 1UH L122 * L120 1UH C219 101 F E D C B A F E D C B A 12345 6 123 4 5 6 东莞市步步高视听电子工业有限公司 BBK 更

20、 改数 量更改单号签 名日 期 设 计审 核批 准 第 张共 张版次： 标 准 化 ()解码板原图 二解码板原图 二 2310TB-1 P10(T2) 1 P11(T2) 2 P12 3 P13 4 P14 5 P15 6 P16 7 P17 8 RST/VPD 9 P30(RXD) 10 P31(TXD) 11 P32(INT0) 12 P33(INT1) 13 P34(T0) 14 P35(T1) 15 P36(WR) 16 P37(RD) 17 XTAL2 18 XTAL1 19 VSS 20 P20(A8) 21 P21(A9) 22 P22(A10) 23 P23(A11) 24 P

21、24(A12) 25 P25(A13) 26 P26(A14) 27 P27(A15) 28 /PSEN 29 ALE 30 /EA(VPP) 31 P07(AD7) 32 P06(AD6) 33 P05(AD5) 34 P04(AD4) 35 P03(AD3) 36 P02(AD2) 37 P01(AD1) 38 P00(AD0) 39 VCC 40 N116 P89C238MBP/B R124 22K P25 49326_DO C172 47U/16V XTAL1 XTAL2 L108 FB 5 6 7 N112B 5532 3 2 1 84 N112A 5532 R133 5.6K R1

22、35 10K R136 5.6K R134 3.9K R132 10K R137 3.9K C177 471 C179 272 C174 471 C193 104 C192 104 C178 10U/16V C175 10U/16V C176 272 5 6 7 N113B 5532 3 2 1 84 N113A 5532 R139 22K R141 10K R142 5.6K R140 10K R138 47K R143 3.9K C183 471 C185 272 C180 153 C195 104 C194 104 C184 10U/16V C181 10U/16V C182 104 5

23、 6 7 N114B 5532 3 2 1 84 N114A 5532 R145 5.6K R147 10K R148 5.6K R146 3.9K R144 10K R149 3.9K C189 471 C191 272 C186 471 C201 104 C200 104 C190 10U/16V C187 10U/16V C188 272 +12V +12V +12V -12V -12V -12V C164 10U/16V C163 104 C162 104 +5VD DA_L DA_R DA_SL DA_SR DA_C DA_SW DA_L DA_R DA_SL DA_SR DA_C

24、DA_SW 1 2 3 4 5 6 7 8 9 RR102 8*4.7K 1 2 3 4 5 6 7 8 9 RR103 8*4.7K +5V +5V 5 6 7 N111B 5532 R129 10K R130 22K R131 100K C167 331 C170 104 C168 104 +12V -12V Lin 3 2 1 84 N111A 5532 R126 10K R127 22K R128 100K C165 331 Rin Ain-R Ain-L Rin Lin Ain-R Ain-L C169 10U/16V C166 10U/16V DSPRST SCK SDA INT_

25、49 DARST 8415_INT P10 P11 P12 P13 P14 P15 P16 P17 P30 P31 P27 P26 P34 P35 P36 P37 VD101 1N4148 8415_ERR 1 2 3 4 5 6 7 8 9 RR104 8*4.7K +5V 1 2 3 4 5 6 7 8 9 10 XS16 CON10 +12V-12V C198 47U/16V C196 104 C199 47U/16V C197 104 FL FR SL SR C SW AGND AGND 1 2 3 4 5 6 7 8 9 10 11 12 13 XS18 CON13 P25 A0 1

26、 A1 2 A2 3 VSS 4 SDA 5 SCL 6 TEST 7 VDD 8 N115 24C02 +5V C171 104 L110 FB L109 FB C139 10U/16V C137 10U/16V C141 10U/16V C138 10U/16V C140 10U/16V C142 10U/16V +5V 49326_DI 49326_CK 49326_CS P26 P27 KM P_RLYC P_LRM P_SCM LAT DO CLK DATA CE P_DIST OK_DAT OK_CLK P_KT Remote DST DCK DDA VD104 1N4148 R1

27、72 470 R167 470 R166 470 R168 470 R169 470 R170 470 R171 470 R173 470 R174 470 V101 9014 R175 4.3K R125 47K R176 1K R177 10K VD105 1N4148 PH_SW L115 C212 47U/16V C211 104 F E D C B A F E D C B A 12345 6 123 4 5 6 东莞市步步高视听电子工业有限公司 BBK 更 改数 量更改单号签 名日 期 设 计审 核批 准 第 张共 张版次： 标 准 化 SW1 1 SW2 2 SW3 3 SW4 4

28、 DOUT 5 DIN 6 NC 7 CLK 8 STB 9 K1 10 K2 11 K3 12 K4 13 VDD 14 SG1/KS1 15 SG2/KS2 16 SG3/KS3 17 SG4/KS4 18 SG5/KS5 19 SG6/KS6 20 SG7/KS7 21 SG8/KS8 22 SG9/KS9 23 SG10/KS10 24 SG11/KS11 25 SG12/KS12 26 SG13/GR16 27 SG14/GR15 28 SG15/GR14 29 SG16/GR13 30 SG17/GR12 31 SG18/GR11 32 VDD 33 VEE 34 SG19/GR1

29、0 35 SG20/GR10 36 GR8 37 GR7 38 GR6 39 GR5 40 GR4 41 GR3 42 GR2 43 GR1 44 VDD 45 LED5 46 LED4 47 LED3 48 LED2 49 LED1 50 GND 51 OSC 52 N101 PT6311 R101 10k R102 10k C109 47u/16VR122 100 S101 INPTUSET -30V R103 470 R104 470 R105 470 C113 47u/16V VD103 1N4004 R113 270/0.5W C107 47u/35V R115 4.7k/0.25w

30、 R111 4.7k R110 4.7k R109 4.7k R106 100/0.25W C108 100u/35V VD102 5.6V/0.5W VD101 30V/1W C101 104 C114 103 OUT 1 VS 3 GND 2 N102 HS0038A2 C110 103 VD104 5R3HD C102 221 C103 221 C104 221 1 2 3 4 5 6 7 8 9 XP15 CON9 R107 47K R116 100 1 2 3 4 5 XS10 CON5 From Signal Board AV310T面控板面控板 From TRANS F1 F2

31、0 V3 V3 +5VD VD105 5R3HD V101 2N5551 R108 4.7K +5VD +5VD +5VD -30V +5VD R114 1/0.25W +5VD +5VD C106104 R118 10K R117 10K C112 103 C111 103 R119 100 R120 100 +5VD C105 47u/16V R112 47/0.5W RP101B RVP-1 1 2 3 RP101A RVP-1 +5VD FAN DST DCK DDA REMOTE L101 100uH F 1 F 2 NOP 3 G1 5 G2 6 G3 7 G4 8 G5 9 G6

32、 10 G7 11 G8 12 G9 13 G10 14 G11 15 NOP 4 NOP 16 NOP 17 NOP 18 NOP 19 NOP 20 NOP 21 NOP 22 NOP 23 NOP 24 NOP 25 NOP 26 NOP 27 P16 28 P15 29 P14 30 P1 43 P2 42 P3 41 P4 40 P5 39 P6 38 P7 37 P8 36 P9 35 P10 34 P11 33 P12 32 P13 31 NOP 44 NOP 45 F 46 F 47 VFD101 HL-D253 P_RLY R121 100/0.25W NC C115 103

33、 Principle and Maintenance Brochure for AV310T (RU) Table of Contents Chapter One: Product Introduction Chapter Two: Working Principle I. Components of the Complete-machine II. Signal Processing Board III. Decoder Board IV. Panel V. Power Board VI. Loudspeaker Board 3. Control Board: VFD Display, th

34、e menu button and main volume control 4. Power board and protection circuit: to supply the working voltage needed to unit circuit and carry out the protection function to the whole power amplifier; 5. Amplifier board: to amplify the power of the 5.1-channel signal and simulated signal; 6. Earphone b

35、oard: to amplify the karaoke input and earphone output signal. II. Signal Processing Board 1. The six input styles of AV310T (RU): Fiber input, coaxial input, CD, DVD, 5.1-channel and radio input. The digital signal of fiber and coaxial input is processed in decoding board through lines. The simulat

36、e input option of AV310T (RU)is realized through the two electric switches, the truth table is as follows: CD4052 Truth Table CD Radio DVD A 1 0 1 B 1 1 0 The three simulated input status : AV310T （RU） has the three simulated input states: radio, CD, DVD, which are controlled through signal 4052-A a

37、nd 4052-B respectively(refer to the truth table). The gated signal is output from Pin 3 and Pin 13 of N101; then through N111 CD 4052, the main channel signals of the right and left are output through Pin1 and Pin12; the signal is finally processed in the decoding board. The simulated signal input i

38、n 5.1 state: The 5.1 simulated signal input of AV310T （RU） controls is gated by the two IC CD 4053s, Pin 9, Pin 10 and Pin 11 of which is controlled by the signal 5.1CH output from Pin 4 of M62446. When signal5.1CH becomes high level, the strobe becomes the State5.1 simulated signal input, under whi

39、ch the digital sound field disappears and all the signals becomes direct. When signal 5.1 CH becomes low level, the strobe becomes the signal composed through decoding. The shift control of direct mode and digital sound field mode: AV310T（RU）has direct mode and digital sound field mode, its strobe i

40、nput is controlled by N111 CD 4052 and N102 CD 4053. When signal 4053-INT becomes high level, the IC is out of working status as it is connected to the emarginated terminal of N102, thus the main channel signal is output through Pin 6 and Pin 11 of N111, and directly transmitted to the hi-fi music s

41、ignal processed by M62446. When 4053-INT becomes low level, the main channel signal is transmitted to decoding board for digital sound process, while N102 is still under working status. 2. The signal process of Karaoke After the signal of Karaoke transmitted from M-board is amplified in coupling amp

42、lifier, it is directly transmitted to Volume and Key Control IC PT 2315 for processing, after the reverberation delay is adjusted in PT2399, it is transmitted through band pass filter to loudspeaker for small-signal amplifying. As PT 2315 is controlled by CPU, the user may adjust it through the remo

43、te controller as they like. While the other signal, after being amplified and rectified, is used to control the switch triode V201 9014 and in turn to control the high level and low level of the Test Signal P-KT to test Karaoke signals. When the input Karaoke signal is strong enough to lead the dire

44、ct current rectified to triode 9014, and to lower the P-KT signal, which indicates the input of Karaoke signals. When the system is unable to detect signals in a certain period of time, the system will automatically becomes soundless in the section of Karaoke and prevent the outside noise from affec

45、ting the audio effect. 3. The switch-on of fan When the amplifier is loaded, given that the power increases and the temperature raises fast, the power amplifier equipped with fan for heat radiating. When volume is bigger than 45 DB, the signal of fan becomes high level, V103 and V105 becomes electri

46、fied and forms a circuit to switch on the fan. But when the earphone is loaded, the control line PH-SW becomes high level, then V104 becomes electrified and lowers the signal of the fan, consequently, no matter how high the system volume is, the fan will not be switched on. III. Decoding Board The m

47、ain components of the decoding board are listed as follows: CPU: the controlling core of the power amplifier IC 493264：the high-performance digital audio decoder, including DOLBY decoding, DTS decoding and DSP processing. IC 8415: Serial audio digital signal receiver IC CS5340：2-channel A/D shift IC

48、 CS 4360：6-channel A/D shift IC 24C02：status saving IC 74HC04：multiplex (MPX) inverter IC BM1117-3.3：3.3V stable voltage IC supplying power to CS8415, CS4923 Working Principle After the fiber and coaxial signal go through the inductance filter and capacitance filter, it will be inverted in the inver

49、ter and then transmitted to Pin 4, Pin12 and Pin 14 of the serial audio digital signal receiver IC CS8415, through this IC, the serial audio digital signal is transformed into PCM signal and output through Pin 16(sampling rate signal), Pin 17(main channel clock signal) and Pin 18(audio data signal) to Pin 25(sampling rate control signal), Pin 26(clock signal) and Pin 22(PCM data input interface 1) of the digital audio