Philips dvd 620 623 633 service manual

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Technical Specifications & Connection Facilities EN 2 DVD 620 /0X1 1. 1. Technical Specifications & Connection Facilities PLAYBACK SYSTEM DVD Video Video CD & SVCD CD (CD-Recordable and CD-Rewritable) TV STANDARD (PAL/50Hz) (NTSC/60Hz) Number of lines 625 525 Playback Multistandard (PAL/NTSC) VIDEO PERFORMANCE Video output 1 Vpp into 75 ohm RGB (SCART) output 0.7 Vpp into 75 ohm Black Level Shift On/Off Video Shift Left/Right AUDIO FORMAT Digital MPEG Compressed Digital Dolby Digital16, 20, 24 bits PCM fs, 44.1, 48 kHz Analogue Stereo Sound Dolby Surround-compatible downmix from Dolby Digital multi-channel sound 3D Sound for vir tual 5.1 channel sound on 2 speakers AUDIO PERFORMANCE DA Conver ter 24 bits DVD fs 96 kHz 4 Hz - 22 kHz fs 48 kHz 4 Hz - 22 kHz CD/VCD fs 44.1 kHz 4 Hz - 20 kHz SVCD fs 48 kHz 4 Hz - 22 kHz fs 44.1 kHz 4 Hz - 20 kHz Signal-Noise (1kHz) 110 dB Dynamic Range (1kHz) 95 dB Crosstalk (1kHz) 110 dB Distor tion and Noise (1kHz) 90 dB CONNECTIONS SC ART Euroconnector Video Output Cinch (yellow) Audio L+R output Cinch (white/red) Digital Output 1 coaxial IEC958 for CDDA / LPCM IEC1937 for MPEG1/2 / Dolby Digital CABINET Dimensions (w x h x d) 435 x 75 x 210.5 mm Weight Approximately 1.9 Kg * typical playing time for movie with 2 spoken languages and 3 subtitle languages Specifications subject to change without prior notice Specifications Cleaning the Cabinet ¶Use a soft cloth slightly moistened with a mild detergent solution. Do not use a solution containing alcohol, spirits, ammonia or abrasives. Cleaning Discs ¶When a disc becomes dir ty, clean it with a cleaning cloth. Wipe the disc from the centre out. Do not wipe in a circular motion. ¶Do not use solvents such as benzine, thinner, commercially available cleaners, or antistatic spray intended for analogue records.Cleaning the disc lens ¶After prolonged use, dir t or dust may accumulate at the disc lens. To ensure good playback quality, clean the disc lens with Philips CD Lens Cleaner or any commercially available cleaner. Follow the instructions supplied with the cleaner. Maintenance CL 16532162_020.pdf 070102

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Safety Instructions, Warnings, Notes, and Service Hints EN 3 DVD 620 /0X1 2. 2. Safety Instructions, Warnings, Notes, and Service Hints 2.1 Safety Instructions 2.1.1 General Safety Safety regulations require that during a repair: Connect the unit to the mains via an isolation transformer. Replace safety components, indicated by the symbol
, only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard. Safety regulations require that after a repair, you must return the unit in its original condition. Pay, in particular, attention to the following points: Route the wires/cables correctly, and fix them with the mounted cable clamps. Check the insulation of the mains lead for external damage. Check the electrical DC resistance between the mains plug and the secondary side: 1. Unplug the mains cord, and connect a wire between the two pins of the mains plug. 2. Set the mains switch to the 'on' position (keep the mains cord unplugged!). 3. Measure the resistance value between the mains plug and the front panel, controls, and chassis bottom. 4. Repair or correct unit when the resistance measurement is less than 1 M-„¦. 5. Verify this, before you return the unit to the customer/ user (ref. UL-standard no. 1492). 6. Switch the unit off, and remove the wire between the two pins of the mains plug. 2.1.2 Laser Safety This unit employs a laser. Only qualified service personnel may remove the cover, or attempt to service this device (due to possible eye injury). Laser Device Unit Type : Semiconductor laser GaAlAs Wavelength : 650 nm (DVD) : 780 nm (VCD/CD) Output Power : 20 mW (DVD+RW writing) :0.8 mW (DVD reading) :0.3 mW (VCD/CD reading) Beam divergence : 60 degree Figure 2-1 Note: Use of controls or adjustments or performance of procedure other than those specified herein, may result in hazardous radiation exposure. Avoid direct exposure to beam. 2.2 Warnings 2.2.1 General All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD, ). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are at the same potential as the mass of the set by a wristband with resistance. Keep components and tools at this same potential. Available ESD protection equipment: -“Complete kit ESD3 (small tablemat, wristband, connection box, extension cable and earth cable) 4822 310 10671. -“Wristband tester 4822 344 13999. Be careful during measurements in the live voltage section. The primary side of the power supply (pos. 1005), including the heatsink, carries live mains voltage when you connect the player to the mains (even when the player is 'off'!). It is possible to touch copper tracks and/or components in this unshielded primary area, when you service the player. Service personnel must take precautions to prevent touching this area or components in this area. A 'lightning stroke' and a stripe-marked printing on the printed wiring board, indicate the primary side of the power supply. Never replace modules, or components, while the unit is on. 2.2.2 Laser The use of optical instruments with this product, will increase eye hazard. Only qualified service personnel may remove the cover or attempt to service this device, due to possible eye injury. Repair handling should take place as much as possible with a disc loaded inside the player. Text below is placed inside the unit, on the laser cover shield: Figure 2-2 2.2.3 Notes Dolby Manufactered under licence from Dolby Laboratories. Dolby, Pro Logic and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works. ©1992-1997 Dolby Laboratories, Inc. All rights reserved. Figure 2-3 Trusurround TRUSURROUND, SRS and symbol (fig 2-4) are trademarks of SRS Labs, Inc. TRUSURROUND technology is manufactured under licence frm SRS labs, Inc. Figure 2-4 CAUTION VISIBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN AVO ID EXPOSURE TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRÃ…LING VED Ã…BNING UNDGÃ… UDSÆTTELSE FOR STRÃ…LING ADVARSEL SYNLIG OG USYNLIG LASERSTRÃ…LING NÃ…R DEKSEL Ã…PNES UNNGÃ… EKSPONERING FOR STRÃ…LEN VARNI NG SYNLIG OCH OSYNLIG LASERSTRÃ…LNING NÄR DENNA DEL ÄR ÖPPNAD BETRAKTA EJ STRÃ…LEN VARO ! AVATT AESSA OLET ALTTIINA NÄKYVÄL LE JA NÄKYMÄTT ÖMÄLLE LASER SÄTEILYLLE. ÄLÄ KAT SO SÄT EESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET NICHT DEM STRAHL AUSSETSEN DANGER VISIBLE AND INVISIBLE LASER RADIATI ON WHEN OPEN AVO ID DIRECT EXPOSURE TO BEAM AT TENTION RAYO NNEMENT LASER VISIBLE ET INVISIBLE EN CAS D'OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU !