Akai-DVR-4015-VSS-Service-Manual(1) 电路图 维修手册.pdf

《Akai-DVR-4015-VSS-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Akai-DVR-4015-VSS-Service-Manual(1) 电路图 维修手册.pdf（38页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL Model: DVR4015VSS DVD PLAYER www.akai.ru RadioFans.CN 收音机爱 好者资料库 目录 Safety information -3 1 General guid-3 2 Low zeta potential leaking inspection -3 3 High zeta potential leaking inspection -3 Device avoiding ES(Electric Susceptible) Influence of ESD (Electric Susceptible Discharge)-

2、3 Technical specification -4 Mechanical diagram - -8 Mechanical Parts- 9 Packing and accessories -10 Disassemble and assemble-11 1 Take out disc from trouble player -11 2 PCB position -11 Disassemble and assemble parts of the unit -12 1 Can open the tray by electricity -12 2 Can not open the tray by

3、 electricity -12 3 Assemble the unit -12 Attachment 1- 13 Block Diagram/Electric circuit diagram 1 Block diagram -14 2 Electric circuit diagram -15 3 Decoder board diagram -16 4 AV output board diagram -20 5 Control board diagram -23 Attachment 2-24 PCB Diagram 1 Upper decode board PCB diagram -25 2

4、 Lower decoder board PCB diagram -26 3 AV output board PCB diagram -27 4 Control board PCB diagram -30 Attachment 3-32 Component list 1 AV output board component list -33 2 Decoder board component list -36 3 Control board component list -39 RadioFans.CN 收音机爱 好者资料库 SAFETY INFORMATION General guide Ge

5、neral guide 1.Observe the original circuit during maintenance. if short circuit occurs, change the over-hot or damaged components. 2.Observe all the protective device after maintenance, such as whether the shielding cover or paper is assembled well. 3.To avoid electric shock, please inspect electric

6、ity leakage after maintenance Low zeta potential leaking inspection 1.Take out AC cord and connect a piece of wire between two legs of the outlet. 2.Use Gear R x 10K of the voltmeter to measure the spares on AC outlet and exposed metallic part with short circuit. The resistance between screw cap, co

7、ntrol shaft should be unlimited. uF AC voltage table to have discover metal accessory of equipment creepage checking circuit cold water canal（earthing） picture 1 High zeta potential leakage inspectionHigh zeta potential leakage inspection .As illustrated 1, Connect Resistor with 1.5K, 10W and capaci

8、tor 0.15 between exposed metallic part and device of fine connection to the earth (water pipe etc.). 2.Plug-in AC cord directly to AC outlet. Do not inspect with shield adaptor. 3.Utilize 1000 or more sensitive voltmeter to measure alternating voltage. 4.Turn back the AC plug-in from AC outlet then

9、iterate the inspection as above. 5.Inspect the voltage of the resistor between other exposed metallic parts and the earth with the same way. 6. The voltage must not be over than 0.75Vrms at any points on the resistor. Electric leakage should not be over 0.5mA when processing high voltage leakage tes

10、ting through Device avoiding ES(Electric Susceptible) 8. When disassembling and replacing the ES device, try to reduce body movement (Or, the movement of legs, the friction of fibrous of clothes, or elevating the legs from the floor will generate static electricity ESD, causing damage to the ES devi

11、ce.). Influence of ESD (Electric Susceptible Discharge exceeded the restrained figure, electric shock should be possibly suffered. Do maintain the unit and inspect once more before return to the user. Device avoiding ES influence of ESD. Some solid semi-conductor devices are easy to be damaged by st

12、atic electricity. These devices are generally called ES device. The typical devices are IC, field effect component and semi-conductor laser diode. The following technology helps to abate the danger of ESD on body before handle any semi-conductor or semi-conductor component. Or wear the ESD bangle av

13、ailed from the market to eliminate the threaten of static electricity on human body. 2.Put the electronic parts with ES device on the surface of conductor such as aluminium foil after take them out in order to protect static electricity from accumulation and explosion. 3.Solder or disassemble ES dev

14、ice through iron connecting the earth. 4. Utilize device only anti-static electricity to disassemble soldering tin. Non-anti static electricity device (ESC protection) will release ES that damage ES device. 5.Do not use chemical volatile releasing static electricity that leads to damage ES device 6.

15、 Unless preparation for pre-assembling has been made, do not take out the ES device to be changed from the protective packing ( most of the changed ES devices are packed together with anti-static electrical foam or similar electric material, besides, countermeasures for down-lead short circuit are t

16、aken.). 7. Protective material should connect the model or the circuit component to be assembled in it before taking out the protective material from the ES device. Note: do not bear electricity to the model or the circuit, and pay attention to all the other safety information. 1 RadioFans.CN 收音机爱 好

17、者资料库 Technical specification DVD Electric gudideline 1：Video parts NO. Test items Test point Performance request Units Remake 1 video 1.00.2 Vp-p Y 0.70.14 Vp-p chroma 0.880.176 Vp-p 2 S-vid eo C Color sync 0.30.06 Vp-p 3 Y.Cr. Cb/Y.Pr.Pb 0.7+/-0.14 Vp-p 4 Output range R.G.B 0.7+/-0.14 Vp-p 5 Level

18、definition 450 lines 6 bandwidth(+3/-6 dB) 5.5 MHz 100KHz 0 dB 7 differential coefficient bit DP 2 degree 75 loads 8 Lum non distortion 5 % 75 loads 9 Differential plus DG 2 % 75 loads 10 Y 56 (except power) dB 75 loads U channel 50 dB 75 loads 11 C V channel 50 dB 75 loads R channel 50 dB 75 loads

19、G channel 50 dB 75 loads 12 S/N ratio R G B B channel 50 dB 75 loads 2：Audio(Test signals：TCD-784) 2：Audio(Test signals：TCD-784) NO. Test items Test point Performance request Units Remark 1 Lines audio input, output levels 1.8+0.2/-0.8 Vrms DVD(LPCM)、CD Audio input impedance:10K 2 Breadth rage respo

20、nse 1.5 dB DVD(LPCM) 20Hz20KHz 3 S/N 80 dB A count power 4 THD 10 % 1KHz A count power 10W 5 Condition areas 90 dB 1KHz A count power 6 Separate degree 70 dB 1KHz A count power 7 Channel inbalance 1.0 dB DVD(LPCM)、CD 8 Coaxial output range 0.520% Vp-p 75 1% loads 9 Optical output wavelengh (p) 66030

21、 nm 3：Other characteristic parts 3：Other characteristic parts NO. Test items Test point Capability request Units Remark 1 Load time 10 S 2 Remote control for instance 5 m Front surface15areas 3 Input power voltage 230V10% 50Hz 4 Expend power 110W Normal works 5 Deposited condition of temperature -25

22、+55 C 6 Works condition of temperature 0+40 C 7 Freedom lower Accord GB/T 2423.8-1995 request 8 Disc formats (1)DVD: 12cm single side, single layer;12cm single face, double layer;12cm double face. Double layer; 8cm single face, single layer; 8cm single face, double layer;8cm double face, double laye

23、r. (2)CD disc:12cm disc,8cm disc 4：Test condition1.condition：normal temperature，normal voltage 2.power voltage：AC 230V 50Hz 3. speaker impedance: 8 4 Technical specification AV output board electric guideline production model：AKAI DV-R4015VSS Items Unit Model Value Limited value Test condition POWER

24、 PARTS 1 Input voltage areas VAC23010% 2 Rating output voltage and current +5V 1.3A +5V 1.5A -16V 2.2A+16V 3A -16V 2.2A+16V 3A AC3.7V 100mA AC3.7V 120mA -24V 50mA-24V 50mA 3 The least of output power W 110 Input voltage AC230 10%V 4 +5 output veins wave mV 50 4 Power tune rate(+5V port) % 5 Input vo

25、ltage AC230 10%V 6 Loads tune rate(+5V port) % 5 current10mA-1.5A AV output parts 7 Works voltage V 16 20 RL=8 8 Static state current mA 380 630 9 Output power W 12 14 THD = 10% RL = 8 10 (FR/FL/SR/SL/CENT) 9 11 THD = 1% RL = 8 11 Subwoofer output power W 30 35 THD = 10% RL = 8 12 After all humorous

26、 wave distortion % 0.03 0.07 RL = 8 ; PO = 1W; f = 1KHz 0.7 RL = 8 ;PO = 0.1 to 7W;f = 100Hz to 15KHz 13 Bunch sound dB 70 f = 1KHz 60 50 f = 10KHz 14 S/N dB 80 75 A count power 15 Breadth response dB 1.5 4018KHz 5 Electric Specification book FM electric guideline Model:AKAI DV-R4015VSS Test conditi

27、on: 1.power supply voltage: AC 230V 50Hz 2.standard output power: 1W 3.sound speaker impedance: 8 4.standard confection: 1000Hz 22.5 KHz frequency deflection 5.Aerials impedance:75 NO. Test items unitsStandard Limited Error 1 Intermediate frequency MHz10.7 +/-0.1 2 Cover with areas MHz87.5- 108 +/-0

28、.1 90MHz KHz 3 Graduation error 106MHz KHz 90MHz 22.5KHz frequency deflection S/N 30dB dBV26 32 98MHz 22.5KHz frequency deflection S/N 30dB dBV26 32 4 Chirp limited is sensitive to degree 106MHz 22.5KHz frequency deflection S/N 30dB dBV26 32 5 S/N ratio （98MHz,input 1mV except power） dB 50 34 6 -3dB

29、 Limited delicacy degree V 10 20 7 Intermediate frequency restrain（90MHz） dB 50 45 8 Lens restrain compete（106MHz） dB 28 22 9 Distortion degree（1mV input） % 0.6 1.5 10 Confection AC sound（input 5mV） dB 50 40 11 AFC areas(1mV input,-3dB) KHz 12 AM restrain(1mv input, confection degree 30%)dB 32 26 13

30、 Output power （ distortion10%,60Khzfrequency leaning, 1mv input） W 10 14 Breadth response（-3dB） Hz 40Hz-12.5KHz100Hz-8KHz 15 The lease of volume mV 1 3 16 Locking station delicacy degree dB 28 17 separate degree dB 25 20 6 Electric Specification book Mw electric guideline Model:AKAI DV-R4015VSS Test

31、 condition: 1.power supply voltage: AC 230V 50Hz 2.standard output power:1W 3.loundspeaker impedance: 8 4.standard confection: 400Hz 30% confection degree No . Test Items Unit Standard Limited Error 1 Intermediate frequency KHz 450 +/-3 2 Cover with areas KHz 522-1620 +/-5 S/N 20dB, 612KHz dBV/M 75

32、S/N 20dB, 999KHz dBV/M70 75 4 Chirp limited is sensitive to degree S/N 20dB,1413KHz dBV/M70 75 5 S/N SNR（999 KHz ,input 10mV/M, standard confection 1KHz A count power） dB 40 34 6 Intermediate frequency restrain compete（612KHz） dB 45 35 7 Lens restrain compete（1413KHz） dB 34 20 8 AFC（input100mV/M） dB

33、 30 20 5mV/M input,30confection degree % 1 3 9 Distortion degree 100mV/M input,80confection degree % 3 5 10 -6dBbandwidth (20dB S/N) KHz 8 5-10 11 whistle(input 5mV/M,IFx1 IFx2) % 3 10 Volume largest W 12 Output power Distortion degree10% ,80% confection, input5mV/M W 10 13 +/-10KHz selectivity (on

34、1000KHz 20dB S/N） dB 14 8 14 Breadths response （-6 dB, input 5mV/M） Hz 40Hz-4KHz 100Hz-3.1 5KHz 15 Confection AC sound（input 100mV/M） dB 40 35 16 The least of volume yawp mV 1 3 17 Locking station delicacy degree dB 90 7 22 25 23 28 27 24 26 29 38 32 31 33 34 37 36 35 1 3 2 4 5 6 7 8 9 10 11 12 13 1

35、4 15 16 17 18 19 20 21 17 18 21 22 23 23 24 25 25 25 25 25 25 25 30 33 33 34 34 34 34 34 34 34 34 34 34 34 34 34 35 35 35 35 35 35 35 35 35 35 35 35 35 35 36 36 3636 36 36 36 37 37 37 37 37 38 38 38 Mechanic parts of decompose diagram 8 9 37 38 N2-300812-14 32 33 36 35 34 N2-300614-54 N2-300815-54 N

36、2-301215-54 N2-300812-19 WD-222232-01 N2-300615-54 ST38 PANi PWTT36（adding forcedly）white power cord2.2m 250V 2.5A VDE attention PWB38（adding forcedly）white PWTT312（adding forcedly）white KTT36 sink head PA38 26 27 28 31 30 29 Y6-440003-00 Q2-010120-16 S1-811048-01 A5-010120-20 A5-010120-10 A8-114100

37、-20 21 20 22 23 25 24 Y3-030260-20 Y3-130151-20 Y3-130151-50 Q4-010120-00 Y3-130150-20 Y3-130150-50 power switchs PS8-11-D-048 line button SB4F-4 back baord AV output board decode board Incept nog back feet PCB mat back feet mat front feet motherboard front feet mat surface、motherboard feet/motherbo

38、ard4 LianDong company(pin) HengZhiQian（lines） motherboard/back surface uuper cover/motherboard decode board、output board、core/motherboard control board，back port 8 6 17 3 25 1 HuaJie company electrolyte board power cord and back board KST-MV114MA1-B0 1 1 1 1 1 1 1mm electrolyte board sponge ABS ABS

39、2 13 2 sponge ABS2 2 Lead7 Y9-01016C-20 16 15 17 18 19 14 Y3-01016C-24 Y3-140160-20 Q3-050121-00 N4-230101-L0 N4-230101-R0 N2-604829-79 8 11 10 12 13 9 A6-000000-41 A5-010120-41 T1-400022-00 A5-010120-40 Q1-0101D0-04 Y3-060160-10 door spring（right） transformer sleeping bolt K6048 PCB plank(core usin

40、g） core plank uuper cover board door spring（left） round power transformer uuper cover board plank control board core control board disc tray MATERIAL NO. MACHINE PARTS OF COMPONENT LIST NO. 3 4 6 5 2 Y9-01012C-31 Q1-010120-14 Y1-010171-00 Y1-0101G1-00 Y9-01012C-33 Y9-01012C-32 APPELLATION Lens2 7KEY

41、 key Vol button surface Lens1 Lens3 ACRYL ABS ABS2 2 carbon wires carbon wires1 1 1 SONY optics head，RongXinDa plank cool roll baord 1 1 1 ABS 1 PVC1 ABS ABS ABS REMARK PVC PVC 1 1 QTY 10 2.MATERIAL LIST 5 O7-010120-R0 NO. 4 3 2 1 O7-010120-L0 O1-500600-10 A1-010120-10 Serial No. O6-010121-00 4 2 sp

42、arking glue（right）1 mainframe bage 500*600mm Appellation and Specification sparkling glue(left) remote control white box 1 1 1 QTY 1 1 1.Decompose diagram 3 PACKING AND ACCESSORY 6 5 11 2.Wring 3 screws out connected base panel with bottom board then wrest 4 screws connected loader with bottom board

43、(Diagram B) 3.Take out front panel and loader carefully,There is a white plastic gear under the loader,Rotate the rear as diagram C to stretch DVD tray and door(diagram D),you can take disc out carefully. Diagram B Panel,core disassemblefront control board Diagram H Boards Location decode board Per

44、PCB assemblies locate as(see Diagram H) AV output board PCB position If you cannot take out disc even press OPEN/CLOSE button,please pull power cord from the socket and follow as below: 1.Wring 8 screws out then pull left and right side to take away top panel that rear part is upper (Diagram A) Diagram A Dipart cabinet Diagram D Take out disc Diagram C Ro