sony_d-e990,ej915_ver1.0 电路图 维修原理图.pdf
《sony_d-e990,ej915_ver1.0 电路图 维修原理图.pdf》由会员分享,可在线阅读,更多相关《sony_d-e990,ej915_ver1.0 电路图 维修原理图.pdf(23页珍藏版)》请在收音机爱好者资料库上搜索。
1、MICROFILM SERVICE MANUAL SPECIFICATIONS System Compact disc digital audio system Laser diode properties Material: GaAlAs Wavelength: = 780 nm Emission duration: Continuous Laser output: Less than 44.6 W (This output is the value measured at a distance of 200 mm from the objective lens surface on the
2、 optical pick-up block with 7 mm aperture.) D-A conversion 1-bit quartz time-axis control Frequency response 20 - 20,000 Hz +1 2 dB (measured by EIAJ CP- 307) Output (at 4.5 V input level) Line output (stereo minijack) Output level 0.7 V rms at 47 kilohms Recommended load impedance over 10 kilohms H
3、eadphones (stereo minijack) Approx. 5 mW + Approx. 5 mW at 16 ohms (Approx. 3 mW + Approx. 3 mW at 16 ohms)* *For the customers in France Optical digital output (optical output connector) Output level: 21 - 15 dBm Wavelength: 630 - 690 nm at peak level Power requirements For the area code of the mod
4、el you purchased, check the upper left side of the bar code on the package. Two Sony NH-14WM rechargeable batteries: 2.4 V DC Two LR6 (size AA) batteries: 3 V DC AC power adaptor (DC IN 4.5 V jack): model:US/Canadian 120 V, 60 Hz AEP/E13 model: 220 - 230 V, 50/60 Hz UK model: 230 - 240 V, 50 Hz Tour
5、ist/E33 model: 100 - 240 V, 50/60 Hz Hong Kong model: 220 V, 50/60 Hz Chinese model: 220 V, 50 Hz Sony DCC-E245 car battery cord for use on car battery: 4.5 V DC Battery life* (approx. hours) (When you use the CD player on a flat and stable surface.) Playing time varies depending on how the CD playe
6、r is used. Two NH-14WM25 (charged for about 4 hours*) Battery case (two40 alkaline batteries) Rechargeable batteries62 NH-14WM and battery case (two alkaline batteries) * Measured value by the standard of EIAJ (Electronic Industries Association of Japan). * Charging time varies depending on how the
7、rechargeable battery is used. Operating temperature 5C - 35C (41F - 95F) Dimensions (w/h/d) (excluding projecting parts and controls) Approx. 127.2 19 130.1 mm (5 18 34 5 18 in.) Mass (excluding rechargeable batteries) Approx. 167.5 g (6.0 oz) Supplied accessories AC power adaptor (1) Headphones/ear
8、phones with remote control (1) Rechargeable batteries (2) Battery carrying case (2) Carrying case (1) Battery case (1) AC plug adaptor (1)* * Supplied with Tourist and E33 models Design and specifications are subject to change without notice. Abbreviation E13: 220 - 230 V AC area in E model E33: 100
9、 - 240 V AC area in E model PORTABLE CD PLAYER D-E990/EJ915 Photo: D-E990 US Model Canadian Model AEP Model UK Model E Model Chinese Model D-EJ915 Tourist Model D-E990 Model Name Using Similar MechanismNEW CD Mechanism Type US: CDM-3022EBG Other: CDM-3022EBA Optical Pick-Up Name US: DAX-22EG Other:
10、DAX-22E Ver 1.0 1999. 10 2 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur- ing repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsold
11、ering. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES
12、PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC
13、DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. TABLE OF CONTENTS 1.SERVICING NOTES.3 2.GENERAL.4 3.DISASSEMBLY.5 4.ELECTRICAL ADJUSTMENTS.7 5.DIAGRAMS 5-1
14、.Block Diagram MAIN Section (1/2) .9 5-2.Block Diagram MAIN Section (2/2) . 11 5-3.Block Diagram POWER SUPPLY Section . 13 5-4.Printed Wiring Board . 16 5-5.Schematic Diagram . 19 5-6.IC Pin Function Description . 27 6.EXPLODED VIEWS. 29 7.ELECTRICAL PARTS LIST. 32 This appliance is classified as a
15、CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. 3 SECTION 1 SERVICING NOTES The laser diode in the optical pic
16、k-up block may suffer electro- static breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repa
17、ir parts. The flexible board is easily damaged and should be handled with care. Befor Replacing the Optical Pick-Up Block Please be sure to check thoroughly the parameters as par the “Op- tical Pick-Up Block Checking Procedures” (Part No.: 9-960-027- 11) issued separately before replacing the optica
18、l pick-up block. Note and specifications required to check are given below. FOK output: IC601 eg pin When checking FOK, remove the lead wire to disc motor. RF signal P-to-P value: 0.35 to 0.55 Vp-p Precautions for Checking Emission of Laser Diode Laser light of the equipment is focused by the object
19、 lens in the optical pick-up so that the light focuses on the reflection surface of the disc. Therefore, be sure to keep your eyes more then 30 cm apart from the object lens when you check the emission of laser diode. Laser Diode Checking Methods During normal operation of the equipment, emission of
20、 the laser diode is prohibited unless the upper lid is closed while turning ON the S801. (push switch type) The following two checking methods for the laser diode are oper- able. Method: Emission of the laser diode is visually checked. 1.Open the upper lid. 2.With a disc not set, turn on the S801 wi
21、th a screwdriver hav- ing a thin tip as shown in Fig.1. 3.Press theubutton. 4.Observing the objective lens, check that the laser diode emits light. When the laser diode does not emit light, automatic power control circuit or optical pickup is faulty. In this operation, the objective lens will move u
22、p and down 5 times along with inward motion for the focus search. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT Fig. 1 Method to push the S801 detection lever detection lever MAIN board S801 4 SECTION 2 GENERAL This section is extracted from instruction manual. 4 Getting started Locating
23、the Controls For details, see pages in parentheses. CD player (front) CD player (inside) qax (stop) /CHG (charge) button (pages 7, 14, 17) q;u (play/pause) button (page 7, 11) 9i/REMOTE jack (page 6) 7 AVLS switch (rear) (page 13) 1 EXT BATT (external battery)/ DC IN 4.5 V (external power input) jac
24、k (pages 6, 17, 18) 4 VOLUME +/ buttons (page 7) 2 LINE OUT (OPTICAL) jack (page 15) 3HOLD switch (page 14) 6 CHG (charge)/ HOLD lamp (pages 14, 17) 5 OPEN switch (pages 6) 8 ./ (AMS/search) buttons (pages 7, 10, 11) qsBattery compartment (pages 17) 5 Remote control Note Use only the supplied remote
- 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:
- sony_d-e990 ej915_ver1.0 电路图 维修原理图 sony_d e990 ej915_ver1 维修 原理图