Akai-A1211-dvd-sm维修电路原理图.pdf

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1、SERVICE MANUAL Model: A1211 www.akai.ru DVD PLAYER RadioFans.CN 收音机爱好者资料库 D V D S e r v i c e Ma n u a l 1 1. CONTENTS Title 2. BLOCK DIAGRAM (CABLE CONNECTIONS) 1. CONTERTS 2 1 3 4 4 14 15 16 18 19 21 22 23 24 25 23 26 18 3. POWER SUPPLY 4. FUNCTIONAL DESCRITPIONS 4.1 DVD MPEG board 4.2 Front Pane

2、l 4.3 SMPS 4.4 DVD Driver 5.1 SWPS TRANSFORMER 5.2 SWPS CONTROLLER IC (TEA1523P) 5.3 SWPS PROGAMMABLE SHUNT RE GULATOR (FAIRCHILD TL 431) 5.4 LINE FILTER(2 x 25mH) 6.1 POWER SUPPLY 6.2 FRONT PANEL 6.3 MPEG BOARD 6. FAULT TRACING FLOW CHART 7. COMPONENT LIST 5. DESCRIPTION OF THE INTEGRATED CIRCUITS

3、Page RadioFans.CN 收音机爱好者资料库 D V D S e r v i c e Ma n u a l 2 2. BLOCK DIAGRAM (CABLE CONNECTIONS) 3 3. POWER SUPPLY D V D S e r v i c e Ma n u a l 1234 A B C D 4321 D C B A Title NumberRevisionSize A4 Date:Sheet of File:Drawn By: 1 2 CN1 FUSE T630mA220VAC C1 0.22/275v C2 0.22/275VAC C3 471/275VAC C

4、4 471/275VAC IN4007 IN4007 IN4007 IN4007 CE4 47u/400V R4 0.47 R8 2.2K C5 10n/630V R2 47K C22 104/50V C24 104 D2ER102 R1233 R16 270 R20 1K D8 SB360 D1 HER157 D6 FR102 D4 FR102 D5FR102 D7 HER207 D9 9.1V IC2 PC817 L320uH L4 20uH L5 20uH L6 20uH 1 5 8 9 15 18 15 16 14 13 14 12 10 11 T1 12 34 L1 FB1 CE14

5、 470u/10V CE9 10u/50V CE8 100u/25V CE7 10u/50V CE11 220u/25V CE3 470u/10V CE6 100u/50V CE10 1000u/25V CE2 22u/50V R10 470 R17 2.2K R21 2.2K R18 680 R19 1K R15 22 R11 2.2k R9 470 R76.8K C6 2.2n/AC400V C10 470p/1KV C13 0.1u/50V C7 NC C23104P IC3 TL431C C15 0.1u/50V C17 471/1KV C18 0.1u/50V C14 470p/1K

6、V C19 102/1KV CE13 2200u/10V C20 0.1u/50V C21 0.1u/50V F1 F2 - 21V - 12V +12V D5V 1.8A 100mA 3.8V/0.2A 1 2 3 4 5 6 Jp4 1 2 3 4 5 JP2 F2 F1 - 21V D5V D5V D5V - 12V +12V SW1 RT1 NTC10D- 11 V1.1 0.1A 1.2A R14 1K CE15 10u/25V VR1 S07K275 1/1 220VAC R6 4.7K R5 75K C16680P HGND HGND HGND VCC 1 GND 2 RC 3

7、REG 4 AUX 5 SOURCE 6 NC 7 DRAN 8 IC1 TEA1523 R33 330 4.1 DVD MPEG board This board implements the back- end circuitry of a DVD player. It is composed of the following subsystems: * Microcontroller which does main control to all other sub- blocks of the system including user interface, driver interfa

8、ce, audio/video output. * Vaddis A/V Decoder IC decodes the bitstream coming from the DVD front- end drive, and Optionally performs audio and video effects. * Audio Codec SPCA8200A AUD2 AUD1 AUD0 DVD- DSP I/F CD- DSP I/F SPDIF 16M SDRAM 2- CHANNEL AUDIO CODEC Cntr/LFE CVBS R G B Rear L/R Rear L/R SE

9、RIAL EPROM 4M FLASH 4 4. FUNCTIONAL DESCRIPTIONS D V D S e r v i c e Ma n u a l 5 D V D S e r v i c e Ma n u a l 6 D V D S e r v i c e Ma n u a l 7 D V D S e r v i c e Ma n u a l 8 D V D S e r v i c e Ma n u a l 9 D V D S e r v i c e Ma n u a l 1 0 D V D S e r v i c e Ma n u a l 1 1 D V D S e r v i

10、c e Ma n u a l 1 2 D V D S e r v i c e Ma n u a l 1 3 D V D S e r v i c e Ma n u a l The front panel I/O. 4.2 Front Panel A. 1 4 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:26- Jun- 2004Sheetof File:DrawnBy: R2 10K R3 10K R1 10K E1 220U/10V 6 5 4 3 2 1 12 S1 12 S2 12 S3 R GND 5V RE

11、MOTE REM 5V REM CLK STB DATA DATA CLKSTB 5V D V D S e r v i c e Ma n u a l 4.3 SMPS 6 Pin, Data Connector Pin Assignments PIN 1 2 3 4 5 6 NAME REM DATA CLK STB GND VCC I/O I I O O O DESCRIPTION Front Panel Data input IR sensor interrupt Front Panel chip select Front Panel clock Front Panel Data outp

12、ut The mains power(220VAC) fed from N1 is filtered through C1, L1, C2 and L2 then rectified by D1, D2, D3 and D4 and generates an output at 300VDC. This 300VDC fed to T1 (pin2, pin4) which connects to TEA1523P(pin2), then TEA1523P will automatically generate a 50KHz square waveform, this 50KHz squar

13、e waveform controls the ON/OFF between TEA1523P pin2 and the ground. In normal condition, T1 primary (between pin2 and pin4) will create a 50KHz square waveform which is controlled by TEA1523P, this signal then fed to T1 and generates 2 different potential voltages of 12V and 5V between pin17, pin14

14、 and pin16, pin14 respectively. The 12VDC and 5VDC then rectified by D7, D8, D9 and then filtered by L3, L4, L5, C9, C10 and C11. The feedback voltage is controlled by Ic3 TL431 and IC2 PC817. When the output voltage is higher than 5V, the voltage at TL431(2.5V) is compared with R10 and send out a s

15、ignal to 5L0380R, the output square waveform then will change to adjust the output voltage, this acts as a voltage stabilizer. 4.2.1 Front Panel Interface 1 5 D V D S e r v i c e Ma n u a l 1 6 D V D S e r v i c e Ma n u a l SONY310 . 4.4 4.4.1 Drive cell:adopt RF- 300CA- 11450 electricity machine 4

16、.2 Electricity machine work voltage is 3V- 5.9V 4.3 General work voltage is 3.3V- 5V 4.4 Unilateralism(com or go) move time:1.5S(add 5V voltage) 4.5 In 5 C- 10 C work current is 120mA 4.5 Testing condition 5.1 Position: level placed 5.2 environment: temperature 22+2 C Humidity 50+5% 5.3 Turnover sto

17、rehouse voltage:5V+0.5V 5.4 Standard DVD lens testing frock 5.5 Standard DVD testing dish 4.3.1 Adopt small lens: can adopt act lens Electric specification WINDING Primary Inductance PIN. NO 2- 4 INDUCTANCE 1.5mH 10% DESCRIPTION 0.50W 2. ELECTRICAL CHARACTERISTICS 2.1 STATIC CHARACTERISTICS 2.2 WITH

18、STANDING VOLTAGE 2.3 INSULATION RESISTANCE 2.4 ELECTRICAL CHARACTERISTICS Main Voltage Operations: Main Drop- out Voltage: Mains STart- up Voltage: Operating Frequency: 90Vac - 265 Vac Max. 90 Vac Max. 90 Vac 60 KHz 1. Primary Leakage inductance (Pin 2- 4) L1.5mH The transformer shall sithstanding a

19、 voltage of 4 Kvms for 1 minute and 1 mA between primary and seconday winding and also 2 Kvms for 1 minute and 1 mA between primary winding with core and secondary winding with core. The insulation resistance shall be ore than 500M between primary and seconday windings when the applied voltage 300 V

20、dc for 1 minute 1. Before taking measurement Pp01 will be to give 5.0Vdc on 5.0Vdc line at Minimum setting of controls and a mains voltage 220 Vac. 2. Before taking a measurement, DVD set should be working at least 5 minutes on Normal condition 1 8 5.1 SMPS TRANSFORMER 5. DESCRIPTION OF THE INTEGRAT

21、ED CIRCUITS 1. GENERAL INFORMATION D V D S e r v i c e Ma n u a l 1 9 D V D S e r v i c e Ma n u a l 5.3 SWPS CONTROLLER IC (TEP1523A) D V D S e r v i c e Ma n u a l 2 0 5.3 SWPS CONTROLLER IC (TEP1523A) * Programmable output voltage to 36volts * Low dynamic output impedance 0.20 typical * Sink curr

22、ent capability of 1.0 to 100mA * Equivalent full- range temperature coefficient of 50 ppm typical * Temperature compensated for operation over full rated operating temperature range * Low output noise voltage * Fast turn- on response The TL 431/TL 431A are three- terminal adjustable regulator series

23、 with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between VREF (approximately 2.5 volts) and 36 volts with two external resistors. These devices have a gypical dynamic output impedanceof 2.0W Active oupput circuity provides a very sha

24、rp turn- on characteristic making these devices excel lent replacement for zener diodes in many applications FeaturesDescription Absolute maximum ratings Recommended Operating conditions Parameter Cathode voltage Cathode Current ValueValueValue VKA IKA Symbol V MA Unit -36VREF -1001.0 Parameter Cath

25、ode voltage Cathode current Range (Continuous) Reference Input Current Range Operating Temperature Range Storage Temperature Range Power dissipation D,Z Sffix Package N Suffix Package Value VKA IKA IREF PD TOPR TSTG Symbol V MAI MA MW MW Unit 37 - 100 +150 0.05 +10 770 1000 - 25 +85 - 65 +150 TO- 92

26、 1 1. Ref 2. Arode 3. Cathode 2.5 Vref ANODE CATHODE(K) ANODE(A) CATHODE REFERENCE REFERENCE(R) 2 1 5.4 SMPS PROGRAMMABLE SHUNT REGULATOR (FAIRCHILD TL 431) D V D S e r v i c e Ma n u a l Inductance: L1- 2=L3- 4- 30mH - 15% - +20% Resistance: R 1- 2 = R 3- 4 = 1.0 ohm (max) Rated current: Irms = 0.5

27、0 A (F= 1 Khz V= 1 Vms) L 1- 2 = L 3- 4 100+/- 20%uH NOTES ELECTRICAL DATA CIRCUIT DIAGRAM LEAKAGE INDUCTANCE 14 23 2 2 5.5 LINE FILTER (2 X 25mH) D V D S e r v i c e Ma n u a l NO PICTURE CHECK JP4 Connector CHECK Voltages Present? REPLACE Ip02, FUSE CHECK MPEG BOARD CHECK MPEG BOARD REPLACE CONNEC

28、T CABLE REPLACE POWER PCB YES YES NO NO OK NO OK Voltages Present? FUSE Dp02 REPLACE 2 3 6.1 POWER SUPPLY 6. FAULT TRACING FLOW CHART D V D S e r v i c e Ma n u a l 2 4 6.2 FRONT PANEL NO PICTURE NO FRONT PANEL DISP POWER BOARD CHECK CHECK REPLACE MAINBOARD CN VOLTAGE IR (5V) RECEIVER Cn4 PIN2: RC P

29、RESS NO NO SIGNAL YES SIGNAL DATA PRESS ANY KEY ON RC AND OBSERVE OPEN/CLOSE ON RC MPEG2 REPLACE MAINBOARD D V D S e r v i c e Ma n u a l NO PICTURENO AUDIO POWER BOARD CHECK INSERT A CD FOR AUDIO TEST AND PRESS PLAY REPLACE MPEG BOARD CHECK JP4 CHECK CN6 LOADER AUDIO OUTPUT RUNING? J3(RGB&CVBS RUNI

30、NG?) NO NO NO NO YES YES 2 5 VOLTAGE(5V,12V)? 6.3 MPEG BOARD D V D S e r v i c e Ma n u a l 2 6 7. COMPONENT LIST C A B L E P O S N OT E L R A C O D ED E S C R I P T I O N 6Pin,2.0mmPitch to 6Pin,2.0mmPitch VH,180mm,UL2468 26AWG 5Pin,2.0mmPitch to 5Pin,2.0mmPitch PH,150mm,UL2468 26AWG 6Pin,2.54mmPit

31、ch to 6Pin,2.54mmPitch VH,250mm,UL2468 26AWG 5Pin,2.54mmPitch,VH to MPEG Power Socket,280mm,UL1007 20AWG Power Cable,180m,VDE AV Cable,1.5m S WP S P O S N OT E L R A C O D ED E S C R I P T I O N C1104K M 275VX2 335 5 MKP C2104K M 275VX2 335 5 MKP C3471K M 275VX1,Y1 335 C4 C5 Ceramic Cap.,1KV- 101,KC

32、6 Ceramic Cap.,1KV 103M 10% C7Cap.,50V 473,10% C8 C9Ceramic Cap.,63v 104,10% CA1 CE4Elec. Cap.,400V- 47UF,M,18X27mm CE2Elec. Cap.,50V- 22UF,M,5X11.5mm CE6Elec. Cap.,35V- 220UF,M,8X11.5mm CE11Elec. Cap.,35V- 220UF,M,8X11.5mm CE10 CE13Elec. Cap.,10V- 2200UF,M,10X20mm CE14Elec. Cap.,16V- 220UF,M,6.3X11

33、mm CE15Elec. Cap.,10V- 100UF,M,5X11mm BR1Rectifier Diode,1N4007,DO- 41 BR2Rectifier Diode,1N4007,DO- 41 BR3Rectifier Diode,1N4007,DO- 41 BR4Rectifier Diode,1N4007,DO- 41 D1Rectifier Diode,HER105,DO- 41 D2Switch Fr102,DO- 41 D3Rectifier Diode,FR102,DO- 27 D4Rectifier Diode,FR104,DO- 27 D5Rectifier Di

34、ode,FR104,DO- 27 D6Rectifier Diode,FR157,DO- 41 D7Rectifier Diode,SR360,DO- 41 D8Zener Diode,9.1V FHBFB, 3.5mm*4.7mm*0.8mm FUSEFuse,T1AL250V,5*20mm,Glass IC- 1IC,TEA1523P DIP8 IC- 2IC,PC817B Ceramic Ceramic Cap.,63V 104,10% Elec. Cap.,25V- 1000UF,M,10X20mm IC- 3IC,TL431C,TO- 92 J- 1Jumper,Diameter=0

35、.6mm,L=10mm J- 2Jumper,Diameter=0.6mm,L=5mm J- 3Jumper,Diameter=0.6mm,L=7.5mm D V D S e r v i c e Ma n u a l Ceramic Cap., 471K M 275VX1,Y1 335 Ceramic Cap., 222 M 400VX1,Y1 335 Ceramic Cap., 2 7 P O S N OT E L R A C O D ED E S C R I P T I O N L- 1Filter,ET20 L- 2Filter,SG01183 L- 3Radial Choke Indu

36、ctor,15uH 10% L- 4Radial Choke Inductor,15uH 10% L- 5Radial Choke Inductor,15uH 10% Cn1Conn.,2Pin,VH,3.96mm,S Cn2Conn.,2Pin,VH,3.96mm,S C0N1Conn.,5Pin,2.54mm,S CON2Conn.,6Pin,2.54mm,S N4Conn.,4Pin,2.54mm,S PCBPCB,POW389L R1Carbon Film Res.,2W- 56K,J R2Carbon Film Res.,1/4W- 22E,J R3Carbon Film Res.,

37、1/4W- 330E,J R4Carbon Film Res.,1/4W- 1K,J R5Carbon Film Res.,1/4W- 1M,J R6Carbon Film Res.,1/4W- 10K,J R7Carbon Film Res.,1/4W- 10K,J R8Carbon Film Res.,1/4W- 10K,J R9Carbon Film Res.,1/4W- 1E,J R10 TR- 1NTC 10D- 11 T1Transformer,KB- 464- 3089 F R O N T P A N E L P O S N OT E L R A C O D ED E S C R

38、 I P T I O N CD1Elec. Cap.,220uF- 10V,5*7mm,CD11,M Carbon Film Res.,1/4W- 680E,J RD1 RD2Carbon Film Res.,1/8W,10K,J RD3Carbon Film Res.,1/8W,10K,J REM01Remote Receiver,GPIUM271RK SW1Tact Switch,6*6*5mm SW2Tact Switch,6*6*5mm SW3Tact Switch,6*6*5mm D V D S e r v i c e Ma n u a l Carbon Film Res.,1/8W,10K,J