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Resumos
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CONTENTS 8. Block Diagram 8-1 ~ 8-2 9. Wiring Diagram 9-1 ~ 9-2 10. PCB Diagrams 10-1 ~ 10-4 10-1 Main PCB (10-2) 11. Schematic Diagrams 11-1 ~ 11-8 11-1 Power Drive (11-2) 11-2 Servo (11-3) 11-3 AV-Decoder (11-4) 11-4 Fromt Micom (11-5) 11-5 Audio (11-6) 11-6 Video (11-7) 12. Operating Instructions and Installation 12-1 ~ 12-50 13. Circuit Operating Descriptions 13-1 ~ 13-16 13-1 Power (13-1) 13-2 RF (13-7) 13-3 System Control (13-9) 13-4 Servo (13-10) 13-5 DVD Data Processor (13-13) 13-
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CONTENTS 14. Reference Information 14-1 ~ 14-16 14-1 Introduction to DVD (14-1) 14-2 DVD-Video Fromat (14-3) 14-1 DVD-Audio (14-9) 14-2 DivX (14-12)
Resumo do conteúdo contido na página número 5
1. Precautions 1-1 Safety Precautions 1) Before returning an instrument to the customer, Any measurements not within the limits specified always make a safety check of the entire instrument, herein indicate a potential shock hazard that must including, but not limited to, the following items: be eliminated before returning the instrument to the customer. (1) Be sure that no built-in protective devices are defective or have been defeated during servicing. (READING SHOULD (1)Protective shields are
Resumo do conteúdo contido na página número 6
Precautions 2) Read and comply with all caution and safety re- 5) Components, parts, and/or wiring that appear to lated notes on or inside the cabinet, or on the chas- have overheated or that are otherwise damaged sis. should be replaced with components, parts and/ or wiring that meet original specifications. 3) Design Alteration Warning-Do not alter or add to Additionally, determine the cause of overheating the mechanical or electrical design of this instru- and/or damage and, if necessary, ta
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Precautions 1-2 Servicing Precautions (4) An insulation tube or tape is sometimes used and CAUTION : Before servicing units covered by this some components are raised above the printed service manual and its supplements, read and follow wiring board for safety. The internal wiring is the Safety Precautions section of this manual. sometimes clamped to prevent contact with heat- ing components. Install such elements as they Note : If unforseen circumstances create conflict were. between the follow
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Precautions 1-3 ESD Precautions (7) Immediately before removing the protective ma- Electrostatically Sensitive Devices (ESD) terials from the leads of a replacement ESD device, touch the protective material to the chassis or cir- Some semiconductor (solid state) devices can be dam- cuit assembly into which the device will be aged easily by static electricity. installed. Such components commonly are called Electrostati- cally Sensitive Devices(ESD). Examples of typical ESD CAUTION : Be sure no po
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Precautions 1-4 Handling the optical pick-up The laser diode in the optical pick up may suffer elec- WRIST-STRAP FOR GROUNDING trostatic breakdown because of potential static elec- tricity from clothing and your body. 1M The following method is recommended. THE UNIT (1) Place a conductive sheet on the work bench (The CONDUCTIVE SHEET black sheet used for wrapping repair parts.) 1M (2) Place the set on the conductive sheet so that the Fig.1-3 chassis is grounded to the sheet. (6) Short the short
Resumo do conteúdo contido na página número 10
Precautions 1-5 Pick-up disassembly and reassembly 1-5-2 Assembly 1-5-1 Disassembly 1) Replace the Pick-up. 1) Remove the power cord. 2) Remove the soldering 2 points on Pick-up. 2) Disassemble the Deck-Assy. 3) Reassemble the Deck-Assy. 3) Make solder land 2 points short on Pick-up. (See Fig. 1-4) 4) Disassemble the Pick-up. Note : If the assembly and disassembly are not done in correct sequence, the Pick-up may be damaged. SOLDER LAND 2 POINTS SHORT PICK-UP ASS'Y Fig. 1-4 1-6 Samsung Electro
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2. Product Specification 2-1 Product Specification Power Requirements AC230V, 50Hz Power Consumption 10W Weight 1.7Kg General Dimensions 430mm (W) x 207mm (D) x 42mm (H) Operating Temperature Range +5°C to 35°C Operating Humidity Range 10% to 75% Reading Speed : 3.49 ~ 4.06m/sec. DVD Approx. Play Time (Digital Versatile Disc) (Single Sided, Single Layer Disc) : 135min. CD : 12Cm Reading Speed : 4.8 ~ 5.6m/sec. Disc (Compact Disc) Maximum Play Time : 74min. CD : 8cm Reading Speed : 4.8 ~ 5.6m/s
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Product Specification 2-2 Chassis Product Specification MODEL DVD-P250K/XSS DVD-P255K/XSS DVD-P350K/XSS DVD-P355K/XAX FLASH 2M 2M 2M 2M RF X X Ti-D Ti-D DRIVE FAN8026 FAN8026 FAN8026 FAN8026 A/V DECODER ZR36862 ZR36862 ZR36778 ZR36778 6dB_AMP LA73054 LA73054 LA73054 LA73054 AUDIO DAC PCM1753 PCM1753 PCM1753 PCM1753 AUDIO ADC M65855P M65855P M65855P M65855P FRONTMICOM eFHP5842 eFHP5842 eFHP5842 eFHP5842 MIC INPUT 1MIC 2MIC 1MIC 2MIC NTSC O O O O Default PAL PAL PAL NT SCARTOUT X X X X PSO MULTI M
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Product Specification 2-3 Option Product Specification Parts No Remark Description Fig Description Remote Model Stamdard AK59-00011K Control of DVD-P355B/XEL Model Stamdard Batteries for of DVD-P355B/XEL AC43-12002H Remote Control (AAA Size) S.N.A Model Stamdard User ’ s Manual AK68-00632G of DVD-P355B/XEL Model Stamdard V ideo/Audio AC39-42001R of DVD-P355B/XEL Cable Samsung Electronics 2-3
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3. Alignment and Adjustment 3-1 Location of Test Point RIC1 SP37239 Pin29 of RIC1 RIC1 SP37239 Fig. 3-1 Location of Test Point Samsung Electronics 3-1
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Alignment and Adjustment 3-2 Skew Adjustment 3-2-1 Adjustment Spec. and Test Point ◆ Test Disc ; Service not Available
Test Disc Adjustment Spec. Test Point Adjustment Location TDV-533 “Pin 29 of RIC1” Screw A / B Chapter 14 Flat Waveform (Main PCB - Component Side) Ass’y Deck - Top Side (See Fig. 3-1) (See Fig. 3-2) Fig. 3-2 Ass’y Deck (Top Side) 3-2 Samsung Electronics
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Alignment and Adjustment 3-2-2 SKEW Adjustment Method Needed to minimize the variations in Skew of the Pickup unit and to provide optimum match with the recorded signal on the Disc. 1) Connect an Oscilloscope to the “Pin 29 of RIC1” Test Point (See Fig. 3-1) 2) Connect Power, Open the Tray and Play the Ch.14 whish is in the TDV-533 Disc. ◆ Set the Oscilloscope Range as follows : (Voltage ; 20mV/Div., Frequency ; 10m Sec.) 3) Adjust the Screws “A” and “B” (See Fig. 3-2) using a Hex screwdriver
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4. Disassembly and Reassembly 4-1 Cabinet and PCB Note : Reassembly in reverse order. 4-1-1 Top Cabinet Removal 1) Remove 3 Screws Πthe back Top Cabinet. 2) Lift up the Top Cabinet in direction of arrow. Π3 SCREWS Fig. 4-1 Top Cabinet Removal Samsung Electronics 4-1
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Disassembly and Reaasembly 4-1-2 Door-Tray Removal 1) Supply power and open Tray Œ. 2) Disassemble the Door-Tray ´ in direction of arrow “A”. 3) Close Tray Œ and power off. Note : If Tray Œ doesn’t open, insert a Screw driver ¨ into the Emergency hole ˇ (as shown in detailed draw- ing) and then push it in the direction of arrow “B”. Open Tray manually. Œ TRAY "B" ´ DOOR-TRAY "A" ¨ SCREW DRIVER ˇ EMERGENCY HOLE Fig. 4-2 Door-Tray Removal 4-2 Samsung Electronics
