Akai-DVP-6336KDM-6834-6837-KDSM-6835KDM-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL Models: DVP6336KDM DVP6834KDSM DVP6835KDM DVP6837KDSM DVD PLAYER www.akai.ru 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. CONTENTS 2 1 3 4 4 14 15 16 18 19 20 22 23 24 25 26 24 27 18 3. POWER SUPPLY 4. FUNCTIONAL DE

2、SCRITPIONS 4.1 DVD MPEG board 4.2 Front Panel 4.3 SMPS 4.4 DVD Driver 5.1 SWPS TRANSFORMER 5.2 FRONT PANEL DRIVER IC FRO VIR (PTC6312) 5.3 SWPS CONTROLLER IC (KA5LO380R) 5.4 SWPS PROGAMMABLE SHUNT RE GULATOR (FAIRCHILD TL 431) 5.5 LINE FILTER(2 x 6.8mH) 6.1 POWER SUPPLY 6.2 FRONT PANEL 6.3 MPEG BOAR

3、D 6. FAULT TRACING FLOW CHART 7. COMPONENT LIST 5. DESCRIPTION OF THE INTEGRATED CIRCUITS 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) RadioFans.CN 收音机爱 好者资料库 1234 A B C D 4321 D C B A 1 2 1NC ESUF SAV052CA/A1T C1 0.1/275v IN4007 IN4007 IN4007 IN

4、4007 4EC V004 / u74 5C Vk1 / 301 2R K021 C22 104/50V D2 FR102 D8 SB360 D1 FR157 D4 FR102 D5 FR102 D7 FR157 D9 6.8V IC2 817 L6 20uH 12 34 L1 CE14 470u/10V CE9 220UF/16V CE3 100u/16V CE6 220u/35V CE10 470u/16V CE2 22u/35V R17 10K R21 10K R15 10k CA1 102 IC3 TL431C CE13 1000u/10V F- F+ -24V -12V +12V D

5、5V 1 2 3 4 5 6 7 8 JP5 1 2 3 4 5 JP2 F- F+ -21V 5V 3.3V D5V -12V +12V SW1 1/1 R6 220 HGND HGND HGND R33 470 BR1 BR2 BR3 BR4 D6 12V R13 270 -12V C23 104 R14 4.7 D10 1N4007 D11 1N4007 CE16 220u/10V 3.3V R22 200K C24 104 1 3 45 6 7 8 2 IC1 VIPER22 T1 50/60HZ AC120-220V 4C FP074 3C FP074 R34 1K 1/4W 4.1

6、 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 interface, audio/video output. * Vaddis A/V Decoder IC decodes th

7、e bitstream coming from the DVD front-end drive, and Optionally performs audio and video effects. * Audio Codec SPCA8202 AUD2 AUD1 AUD0 DVD-DSP I/F CD-DSP I/F SPDIF 64M SDRAM 5.1- CHANNEL AUDIO CODEC Cntr/LFE CVBS R G B Rear L/R Rear L/R SERIAL EPROM 4M FLASH 4. FUNCTIONAL DESCRIPTIONS 4 5 5 4 4 3 3

8、 2 2 1 1 DD CC BB AA V5+ ROTOM ovreS V5+ golana ovreS V3.3+LLP 2028 lenrek V8.1+ oediV LLP V8.1+ 2028 ot esolc troP gubeD )ssapyb LLP( V3.3+ DA lanretnI V3.3+ CAD oediV Am 3 V3.3+ LLP oiduA Am062 V5+ reffub oediV V3.3+ FR V3.3+ hsalF V3.3+ MARDS )1xM46(am85am43 V5+ metsyS B-0-612-YS-61-S2028 0.1 rot

9、 cennnoC output is CMOS output Data input pin for key scanning General - purpose input pin Input data sent to icrocomputer in serial fromat Output pin for segment Output: Pch open drain + pull - down resistance Output pin for grid Output: Pch open drain + pull - down resistance Segment / grid output

10、 selectable pin Output: Pch open drain + pull - down resistance Operating Supply Voltage Range (TA=25, VSS=0V) Parameter Applied voltage 1 Applied boltage 1 Input Voltage Power dissipation Operating Temperature Storage Temperature VDD VEE VIN PD TOPR TSTG SymbolLimits V V V MV Unit - 0.3 7.0 VDD+0.3

11、 VDD - 35 - 0.3 VDD +0.3 850*1 - 25 75 - 55 125 Parameter Operating Supply Voltage range 1 Operating Supply Voltage range 2 Typ.Max.Min. VDD VEE Symbol V V Unit 5.05.54.5 VEE - 30VEE - 0VEE - 32 1 9 5.2 FRONT PANEL DRIVER IC FOR VIR (PT6312) 5.2.1 General Description D V D S e r v i c e Ma n u a l 2

12、 0 D V D S e r v i c e Ma n u a l 5.3 SWPS CONTROLLER IC (VIPer22A) D V D S e r v i c e Ma n u a l 2 1 * Programmable output voltage to 36volts * Low dynamic output impedance 0.20 typical * Sink current capability of 1.0 to 100mA * Equivalent full- range temperature coefficient of 50 ppm typical * T

13、emperature 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 with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be se

14、t 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 sharp turn- on characteristic making these devices excel lent replacement for zener diodes in many appli

15、cations FeaturesDescription Absolute maximum ratings Recommended Operating conditions Parameter Cathode voltage Cathode Current ValueValueValue VKA IKA Symbol V MA Unit -36VREF -1001.0 Parameter Cathode voltage Cathode current Range (Continuous) Reference Input Current Range Operating Temperature Ra

16、nge 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 1 1. Ref 2. Arode 3. Cathode 2.5 Vref ANODE CATHODE(K) ANODE(A) CATHODE REFERENCE REFERENCE(R) 2 2 5

17、.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 = 1.5 ohm (max) Rated current: Irms = 0.50 A (F= 1 Khz V= 1 Vms) L 1- 2 = L 3- 4 100+/- 20%uH NOTES ELECTRICAL DATA CIRCUIT DIAGRAM LEAKAGE IN

18、DUCTANCE 14 23 2 3 5.5 LINE FILTER (2 X 60mH) D V D S e r v i c e Ma n u a l NO PICTURE AND FRONT PANEL DISPLAY CHECK POWER PCB OUTPUT CHECK CN02 Connector CHECK CON2 CHECK Voltages Present? First pin Voltages 5V REPLACE Ip02, FUSE CHECK MPEG BOARD CHECK MPEG BOARD REPLACE CONNECT CABLE REPLACE POWE

19、R PCB YES YES NO NO NO OK NO OK Voltages Present? FUSE Dp02 REPLACE 2 4 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 5 6.2 FRONT PANEL NO PICTURE NO FRONT PANEL DISP PRELACE ICF1 POWER BOARD CHECK RANDOM SEGMENTS ILLUMINATED LED ON? CHECK REPLACE MAINBOARD CN2 VOLTAG

20、E IR (5V, 3.5V, - 21V) RECEIVER J1 PIN2: RC PRESS NO NO SIGNAL YES YES YES SIGNAL DATA PRESS ANY KEY ON RC AND OBSERVE EJECT ON RC MPEG2 REPLACE MAINBOARD D V D S e r v i c e Ma n u a l NO PICTURENO AUDIO REPLACE OUTPUT BOARD POWER BOARD CHECK INSERT A CD FOR AUDIO TEST AND PRESS PLAY REPLACE MPEG B

21、OARD CHECK CON2 CHECK CN6 LOADER AUDIO OUTPUT RUNING? J2,J3(RGB&CVBS RUNING?) NO NO NO NO YES YES YES YES 2 6 VOLTAGE(5V,12V)? 6.3 MPEG BOARD D V D S e r v i c e Ma n u a l resistence 220 1/4W 5% R6 1 resistence 470 1/4W 5% R33 1 resistence 1K 1/4W 5% CE11 1 resistence 10K 1/4W 5% R15 1 resistence 2

22、00K 1/4W 5% R22 1 resistence 120K 1/2W 5% R2 1 resistence 10K 1/4W 1% R2 2 resistence 270 1W 5% R13 1 resistence 470 1W 5% R19 1 jump 0.6mm L=10mm R14 1 capacitance 0.1uF/50V80%20% C22 C24 2 capacitance 0.047uF/50V80%20% C23 1 capacitance 0.01uF/1KV 80%20% C5 1 capacitance 1000pF/250V-Y120% CA1 1 ca

23、pacitance 0.1uF/275V-X2 C1 1 capacitance 22uF/50V 20% CE2 1 capacitance 100uF/16V 20% CE3 1 capacitance 220uF/16V 20% CE9 1 capacitance 220uF/35V 20% CE6 1 capacitance 470uF/16V 20% CE10 CE14 2 capacitance 1000uF/16V 20% CE13 1 capacitance 33uF/400V 20% CE4 1 inductance 17uH L6 1 diode IN4007 BR1 BR

24、2 BR3 BR4 4 fast diode FR104 D2 D4 D5 3 fast diode FR157 D1 D7 2 diode SB360 D8 1 ziner 6.8V 1/2W D9 1 ziner 12V 1/2W D6 1 fuse clamp FUSE 2 fuse 1.6A/250V FUSE 1 filter UU10.5 L1 1 switch transformer HC EEL19 T1 1 connector panel 4.2mm G2 1 connector VH 3.96mm CN1 SW1 2 connector XH 5P/2.54mm JP2 1 connector XH 7P/2.54mm JP202 1 optically coupled 817 IC2 1 ic TL431 IC3 1 ic VIPer22A IC1 1