Akai-DVR-4035-VSMC-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL Model: DVR4035VSMC DVD/CD/TUNER/AMPLIFIER PLAYER www.akai.ru RadioFans.CN 收音机爱 好者资料库 DVD/CD/TUNER/AMPLIFIER PLAYER DV-R4035VSMC SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 Table of contents Safety information-3 1 General guide-3 2 Low zeta potential leaking inspection-3 3 High zeta potenti

2、al leaking inspection-3 Device avoiding ES (Electric susceptible) Influence of ESD (Electric Susceptible Discharge)-3 Electric specification-4 Mechanical diagram- -8 Mechanical parts list- 9 Packing and accessories-10 Disassemble and assemble-11 1 Take out disc from trouble player-11 2 PCB position-

3、11 Disassemble and assemble parts of the unit-12 1 Can open the tray by electricity-12 2 Can not open the tray by electricity-12 3 Assemble the case-12 Attachment 1- 13 Block diagram/Circuit diagram-13 1 Block diagram-14 2 Connecting diagram-15 3 Decoder board diagram-16 4 Amplifier board diagram-21

4、 5 Control Board diagram-24 Attachment 2-25 PCB diagram 1 Upper decoder board PCB diagram-26 2 Upper decoder board silk screen diagram-27 3 Lower decoder board PCB diagram-28 4 Amplifier board PCB diagram-29 5 Amplifier board silk screen diagram-30 6 Upper control board PCB diagram-31 7 Lower contro

5、l board PCB diagram-32 8Control board silk screen diagrqm-33 Attachment 3-34 Component list 1 Decoder board component list-35 2 Amplifier board component list-38 3 Control board component list-41 2 RadioFans.CN 收音机爱 好者资料库 Safety information Safety information General guide General guide 1.Observe th

6、e 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 electricity leakage after mainte

7、nance 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, control shaft should be un

8、limited. 1.5K 10W 0.15uF AC voltmeter To device with exposed metal parts Electric leakage inspection Cold water pipe （connecting to ground） Picture1 High zeta potential leakage inspection .As illustrated 1, Connect Resistor with 1.5K, 10W and capacitor 0.15 between exposed metallic part and device o

9、f 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 iterate the inspection as above. 5.Inspect the volt

10、age 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 testing through prevent ed static of keenness（ES）setti

11、ng is exposedto static of discharge of distortion（ESD）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 sta

12、tic 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 ava

13、iled 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 devi

14、ce 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 packings( 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 tak

16、en.). 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. 8. When disassembling a

17、nd 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 device.) 3 Electric Specification MW electric index Model No.: DVP-0601-1 Test co

18、ndition: 1. Supply voltage: AC230V 50Hz 2. Standard power output: 1W 3.Speaker impedance: 4（FL、FR、SL、SR） ，8（C） ，6(SW) 4.Standard modulating: 400Hz 30% No. Test items Unit Standard Limit error 1 Intermediate frequency KHz 450 +/-3 2 Cover with area KHz 522-1620 +/-5 S/N 20dB，612KHz uV/M600 3000 S/N 2

19、0dB，999KHz uV/M600 3000 4 Utility delicacy S/N 20dB，1395KHz uV/M600 3000 5 S/N ratio（999 KHz，input 5mV/M） dB 40 30 6 Intermediate Frequency restrain rate（612KHz） dB 45 35 7 Mirror restrain rate（1404KHz） dB 35 30 8 Auto plus control（input 100mV/M） dB 30 20 5mV/M input，30 % 1 3 9 Distortion degree 100

20、mV/M input，80 % 3 5 10 -6dB bandwidth（20dB S/N） KHz 8 5-10 11 zip （input 5mV/M，IFx1 IFx2） % 3 10 Volume max W 12 Output power Distortion degree: 10%，60% modulation degree，input 5mV/M W 4.5 3 13 +/-10KHz selectivity （1000KHz 20dB S/N） dB 14 8 14 Frequency respond （-6 dB，input 5mV/M） Hz 404K 1003.15K

21、15 Modulating AC volume （input 100mV/M） dB 40 35 16 The least noise mV 1 3 17 Sensitivity of station locking dB 90 4 FM electric index Model No.: DVP-0601-1 Test condition: 1. Supply voltage: AC230V 50Hz 2. Standard output power: 1W 3. Antenna impedance: 75 4. Standard modulating: 1KHz 22.5KHz 5. Sp

22、eaker impedance: 4（FL、FR、SL、SR） ，8（C） ，6(SW) No. Test items Unit Standard Limit Error 1 Intermediate frequency MHz 10.7 +/-0.1 2 Cover with area MHz 87.5-108 +/-0.1 S/N 30dB，90MHz dB 22 26 S/N 30dB，98MHz dB 22 26 3 Utility delicacy S/N 30dB，106MHz dB 22 26 4 S/N ratio （98MHz，input 1mV） dB 50 34 5 -3

23、dB limit delicacy uV 10 20 6 Intermediate Frequency Restrain Rate（90MHz） dB 50 45 7 Mirror Restrain Rate（106MHz） dB 28 22 8 Distortion degree （1mV input） % 0.6 1.5 9 Modulating AC volume（input 5mV） dB 50 40 10 Auto frequency control range（1mV input，-3dB） KHz 11 AM restrain（1mv input，modulate degree

24、30%） dB 32 26 12 Power output（distortion degree 10%，60KHz，1mv input） W 10 13 Frequency response（-3dB） Hz 4012.5K 1008K 14 Noise of minimum volume mV 1 3 15 Sensitivity of station locking dB 35 16 Passage separating dB 25 20 5 DVD electric index Model No.: DVP-0601-1 1：Video section No. Test item Tes

25、t point Performance requireUnit Remark 1 Video 1.00.2 Vp-p Y 0.70.14 Vp-p Chroma 0.880.176 Vp-p 2 S-Video C Color synchronization 0.30.06 Vp-p 3 Y、Cr、Cb/Y、Pr、Pb 0.7+/-0.14 Vp-p 4 outp ut rang e R、G、B 0.7+/-0.14 Vp-p 5 Horizontal distinguish 500 Line 6 Bandwidth (+3/-6dB) 5.5 MHz 100KHz 0dB 7 Differe

26、ntial phase DP 2 degree 75 load 8 Lum Non-Linear Distortion 5 % 75 load 9 Differential Gain DG 2 % 75 load 10 Y 56 dB 75 load U passage 50 dB 75 load 11 C V passage 50 dB 75 load R R passage 50 dB 75 load G G passage 50 dB 75 load 12 SNR B B passage 50 dB 75 load 2：Audio section (testing signals：TCD

27、-784) No. Test item Test pointPerformance require Unit Remark 1 Audio output level 1.8+0.2/-0.8 Vrms DVD(LPCM)、CD 2 Amplitude/Frequency response 2 dB DVD(LPCM)20Hz20KHz 3 S/N ratio 85 dB JIS-A (20KHz LPF) 4 Distortion THD 0.02 % 1KHz JIS-A 5 Dynamic range 90 dB 1KHz JIS-A 6 Separate degree 65 dB 1KH

28、z JIS-A 7 Passage imbalance 1.5 dB DVD(LPCM)、CD 8 Coaxial output range 0.520% Vp-p 751% load 9 Optical output wavelength (p) 66030 nm 3：Other characteristics No. Test item Test pointPerformance require Unit Remark 1 Disc reading time 1020 S 2 Remote control distance 5 m 3 Supply voltage input 230V(1

29、0%/10%) 50Hz 4 Consume power 110 W Normal working 5 Storing temperature -20+55 6 Image signal system NTSC/PAL 7 Free falling Suitable for request of GB/T2423.8-1995 8 Disc format 1） DVD Player： 12cm single face， single layer； 12cm single face， double layer； 8cm single face ,single layer；8cm single f

30、ace，double layer；（2）CD disc：12cm disc，8cm disc. 4：Test condition 1. Environment condition: normal temperature, normal voltage. 2. Supply voltage：AC230V 50Hz。 6 Amplifier board electric index Model No.：DVP-0601-1 Test condition 1. Test condition：Normal temperature，Normal voltage 2. Supply voltage：AC2

31、30V 50Hz。 7 No. Test item Unit Typical Limit Test condition Power supply 1 Voltage input VAC 23010% 2 Rated output voltage PO=1W;f=1KHz 12 Band distortion (SW) % 0.25 Rated load; PO=1W;f=100Hz 13 Channel output mix dB 55 f=1KHz 14 Channel output mix dB 55 f=10KHz 15 S/N dB 75 JIS-A 16 Amplitude/Freq

32、uency response L/R/C/SL/SR dB +/-2 +/-3 50Hz20KHz 17 Amplitude/Frequency response SW dB +/-2 +/-3 20Hz200Hz Audio input, output 1 Circuit level output VRMS 1.520% 2 Circuit S/N rate output dB 90 85 3 Circuit level input VRMS 1.50.5 4 Circuit impedance input 10K10% Mechanical diagram 8 3 44 15 11 4 1

33、6 12 6 7 9 42 10 14 13 42 5 31 43 42 42 1 45 24 45 45 45 27 48 22 32 19 22 48 28 25 45 23 44 34 17 44 24 45 40 44 36 37 38 41 39 43 20 43 47 43 35 23 25 2 45 26 21 46 29 46 44 30 44 44 47 18 47 21 46 21 21 46 47 33 47 43 43 43 8 Front feet Fix piece for transformer 656.51.2mm Card reader board/mothe

34、r board Mother board/rear board,tuner Amplifier board, decoder board/mother board unit feet、loader/mother board Pannel/Mother board NickelScrew ST36PTT Screw ST316PTT Nickel Screw ST312PWTT Screw ST38PWTT Screw ST36PWTT Screw ST3X8PA Screw ST3X6KTT rubber mat 807.01.3mm rubber mat 657.01.3mm Nickel

35、Nickel Nickel Nickel Nickel Control board Spring mat 6.02.0mm mat 6.0131.0mm nut M64.8mm bolt H6.038.0mm Transformer 230V/110W/VDE ALPS tuner TFCF1E800A Card reader board Decoder board Amplifier board Power switch PS4E-A-040 Pick up CMS-S71SG6 Rear feet mat Front feet mat Rear feet Lens-H PCB holder

36、（height 11.0mm） PCB holder（hight 7.0mm） Top cover holder Top cover Back board Mother board Lens-I 2 Lens-F Lens-G Lens-E Lens-C Lens-D Lens-B Lens-A Remark Function button(down) Function button(up) Volume button Power button decoration board Panel(with card reader) Lens No.Material No.Name QTY Mecha

37、nical parts list 9 10 2 Gift box (unit+speaker) SPP-0301-0 type speaker Speaker poly foam Poly foam（right） Poly foam（left） Remote control No. 2.Material list 4 6 5 1 2 3 O7-060160-S2 A3-060120-01 O6-060127-12 Material No. O7-060120-L0 A1-060120-11 O7-060120-R1 Name 6 4 2 1 1 QTY 1 1 1 4 5 3 1.Disass

38、emble Packing and accessories 1 11 Graph H PCB boards location 3.Take out front panel and loader carefully, there is one white plastic gear under the loader.Rotate the gear as illustrated C to stretch DVD tray and door (illustrated D), you may take disc out carefully. Graph B Dispart front panel and

39、 loader front control board decoder board Volume zeta board Graph D Take out disc All PCB assemblies locate as illustrated H PCB position card reader board Graph A Dispart cabinet 2.Wring 6 screws out connected base panel with bottom board then wrest 4 screws connected loader with bottom board (illu

40、strated B) AV output board If you can not take out disc even press OPEN/CLOSE key,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(illustrated A) Graph C Rotate white gear Gear The unit compr

41、ises mechanical and electric part including:front panel, base panel, top panel, back panel and loader, AV output board,decoder,etc. Take out disc from trouble player Disassemble and assemble 12 Assemble the case by reversing disassembly. After maintenance,switching on power on the condition that ass

42、embly and connection have no mistake then loader and electric circuit return to original place automatically. The unit works normally. Assemble the case Unable to open disc tray when press OPEN/CLOSE button 2.1 Take out disc as illustrated A,B,C,D. 2.2 Take out front panel Unable to open the disc tr

43、ay by electricity Graph E Location of catch on front panel catch 2.1 Operate after completely take out top panel 2.2 Press OPEN/CLOSE button to open disc tray Be careful not to damage disc when take it out if it is in the tray. 2.3 Press OPEN/CLOSE button to close tray then pull out power plug. 2.4

44、Take out PCB board on front panel and cords connected with other circuit board.Wring out 5 screws connected front panel and bottom panel,untie two catches on left and right side of the panel then take out front panel.(See illustrated E) catch catch catch 1.Take out top panel See as illustrated A 2.Take out front panel Able to open the disc tray by electricity Disassemble and assemble parts list Attachment 1: Block diagram, circuit diagram Block diagram/ Connecting diagram Decoder board diagram Amplifier b