Belson-BSA-cd-sm维修电路原理图.pdf
《Belson-BSA-cd-sm维修电路原理图.pdf》由会员分享,可在线阅读,更多相关《Belson-BSA-cd-sm维修电路原理图.pdf(44页珍藏版)》请在收音机爱好者资料库上搜索。
1、C.E.C BELSON/DPTO.TECNICO/BSA-3750/Ed.01 RadioFans.CN 收音机爱 好者资料库 DVD - DivX Player - BSA3750 2 Table of Contents 1.Genernal Section 3 Cautions and Warnings 3 Precautions 3 Test Equipment / Jigs 4 Specifications 4 Disassembly Instructions 7 2.Servise and Special Functions 9 Software Upgrade 9 Initial
2、ization of the Set 9 3.Layout of PCBs and Circuit Diagrams 9 4.IC Block Diagrams 18 5.Exploded View and Spare Parts Lists 36 RadioFans.CN 收音机爱 好者资料库 DVD - DivX Player - BSA3750 3 1. General Sections Cautions and Warnings Product Safety Notice Parts marked with the symbol ! in the schematic diagram h
3、ave critical characteristics. Use ONLY replacement parts recommended by the manufacturer. It is recommended that the unit be operated from a suitable DC supply or batteries during initial check out procedures. Leakage Current Check/Resistance Check Before returning the unit to the customer, make sur
4、e you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 240 K ohms, the unit is defective. WARNING: DO NOT return the set to the customer unt
5、il the problem or located is corrected. Protection of Eyes from Laser Beam To protect eyes from invisible laser beam during servicing DO NOT LOOK AT THE LASER BEAM Laser Caution This Digital Video Disc Player employs a Laser System. To prevent direct exposure to the laser beam, do not try to open th
6、e enclosure. Visible laser radiation emits when open and interlocks are defeated. Use of controls or adjustments or performance of procedures other than those specifi ed herein may result in hazardous radiation exposure. This CD Changer must be adjusted and repaired only by qualifi ed service person
7、nel. DO NOT STARE INTO BEAM. Laser symbol: THIS IS COMPACT DISC PLAYER IS CLASSIFIED AS A CLASS 1 LASER PRODUCT. THE LASS 1 LASER PRODUCT LABEL IS LOCATED ON THE REAR EXTERIOR. Precautions 1. ESD Precautions in Repairing 1.1 Do not apply excessive pressure on the mechanical parts (moving parts), inc
8、luding the Pickup Block, as extremely high mechanical precision or required in these parts. 1.2 When soldering the microprocessor and signal processing ICs, use a ceramic soldering iron or a soldering iron whose metal part is grounded since they are not resistant to static electricity. 1.3 When remo
9、ving the solder or soldering the laser shorting lands for the Pickup Block, use a ceramic soldering iron or a soldering iron whose metal part is grounded since the laser diode or not resistant to static electricity. 2. DVD Loading Unit Precautions when handling the Mechanism Block 2.1 Do not loosen
10、any screws in the Pickup Block. DVD - DivX Player - BSA3750 4 2.2 Do not adjust any screws in the Mechanism Block except for “Tilt Adjust Screws”, as they are adjusted precisely at the factory. 2.3 Replacement of the Pickup Block is impossible. Always replace the Traverse Assy when the Pickup Block
11、needed to be replaced. Do not touch the lens or lens holder of the Pickup Block. 2.4 The Guide Rails of the Pickup Block are greased. Take care when handing. 2.5 When you try to slide the Pickup Block, do not press or pull it directly. Always turn the dive gears with your fi ngers. 2.6 Be sure that
12、the anti-slipping rubber on the turntable or clean. If there is dust or it is greasy, clean the part with the liquid that contains 50% each of alcohol and water. When removing the Mechanism P.C.B. Assy, you need to short-circuit the laser diode shorting lands beforehand. Test Equipment / Jigs Variab
13、le isolating transfomer, Dual channel oscilloscope, Digital multimeter Specifi cation 1Chassis Laser concept2 laser for DVD and VCD 2Disc formats DVD+RYes DVD-RYes DVD+RWYes DVD-RWYes CD-RYes CD-RWYes 3Media formats DVD-VideoYes Audio CDYes Video CDVCD 1.0,1.1,2.0 S-Video CDYes CD-ROMDivX,MPEG4,MP3,
14、 JPEG, Kodak Picture CD,WMA 4Player features Parental controlYes, numerical lock Screen saverYes Picture mode selectYes Video strobeYes Video fi lterYes File browserDivX, MP3, JPEG, Kodak Picture CD,WMA 5Player functions Play/stop/pauseYes/Yes/Yes DVD - DivX Player - BSA3750 5 Next/previous(skip)Yes
15、/Yes Fast forward/reverseYes/Yes (DVD,MP3,WMA : 2X / 4X / 6X / 8X , VCD,CDDA:1X / 2X / 3X / 4X, DivX: 2X / 4X / 8X / 16X ) ZoomDVD/VCD 2X/3X/4X,JPEG 1.5X/2X/1/2/1/4 Slow motion forward /reverseYES/YES(DVD,VCD:1/2,1/4,1/8) Perfect still pictureYes Frame advance /reverseYes/Yes Repeat CD /DVDDVD: titl
16、e -chapter-A/B;VCD,CD: A/B-repeat one-repeat all Random playCDDA, MP3,WMA Program playCDDA,DVD,JPEG,MP3,WMA Last memory( resume)Yes 6Region Code Region codechanged by request. 7OSD OSD stylestandard OSD languageEnglish, German, Dutch, French, Italian, Spanish, Portugu- ese Subtitle LanguageEnglish,
17、German, Dutch, French Welcome Logo and OSD back- ground Provided by Customer 8Audio out Digital Audio decoderDolby digital AC-3, MPEG 2, PCM, MP3 Digital Audio outputDolby digital AC-3, DTS, MPEG, PCM 48/96 KHz Analog Audio outputDolby Prologic II (down mix), Stereo; Dolby digital AC-3; 5.1CH Audio
18、D/A converter24 Bit/96kHz Virtual surround SoundYes Digital sound processYes Frequency range DVD 48/96 kHz 4 Hz-22 kHz/ 4 Hz- 44 kHz Frequency range CD 44.1 kHz4 Hz-20 kHz Dynamic range 1 kHz80 Db(weighted) Crosstalk80 dB(weighted) Signal noise90 dB(weighted) 9Video out Video D/A converter10 Bit / 5
19、4 MHz Progressive Video outPAL / NTSC PALYes, 625 lines / 50Hz / 4.43 MHz DVD - DivX Player - BSA3750 6 NTSCYes, 525 lines / 60 Hz / 3.58 MHz Norm converter ( PAL-NTSC, NTSC-PAL) Yes Video resolution525 lines Frequency response5MHz 60 dB (weighted) Signal noise rate chroma60 dB unweighted 10Connecti
20、ons rear Euro-AV Yes, scart Cinch VideoYes, 1 output Cinch AudioYes, 6 output S-Video ( Y-C)Yes, 1 output Digital Audio out coaxialYes, 1 Digital Audio out opticalYes, 1 progressive scan outYes, 3xoutput 11Power Supply Power voltageAC 110-240V 50/60 Hz Max. power consumptionApprox. max. 10W Power sw
21、itchYes Power supply plugYes 12Cabinet Dimensions in cm (W H D) net Approx. 43.04.825.7 Dimensions of carton in cm (W H D) Aprrox. 47.1x10.8x36.8 13Design Designmirror-like front panel as per the sample provided by Hu- alu Cabinet keysPOWER ,PLAY, PAUSE, STOP, OPEN/CLOSE, PREV, NEXT Logo ACCORDING T
22、O REQUEST LabelModel no. label and production serial number label will be sticked at rear panel 14Remote Control Typestandard BatteriesYes, 2R03P AAA (no mercury) IR codestandard 15Display TypeVFD DVD - DivX Player - BSA3750 7 Dissassembly Instructions A A A C L Fig. 1 GGF B F DE M Fig. 2 16Packagin
23、g 1 set /cartonACCORDING TO REQUEST 54 cartons/ slip-sheet 17Loadability For 20 Container 1296 sets For 40 Container 2592 sets For 40 HC Container 2880 sets 18Supplied Accessories Euro-AV cable (Scart-cable)Yes Power cordYes Remote controlYes BatteriesYes Instruction ManualACCORDING TO REQUEST Warra
24、nty infoYes 19Safely Conformitychanged by request with payment CE CE report is available for Hualus model no.:DVD4360 DVD - DivX Player - BSA3750 8 1. Cabinet Upper Part - Undo the 8 screws A (Fig. 1) - Bend the upper part of the cabinet from the rear side (Fig. 1) off the base plate, and then detac
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Belson BSA cd sm 维修 电路 原理图
![提示](http://www.radiofans.cn/images/bang_tan.gif)