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6. Schematic Diagrams

3) Driving circuit

When Vin supplied, driving current Ig occurs throuhg the PICF1. By this I1 (=Hfe x Ig) occurs throug the PICF1 and the Vb is inducted to base winding coil NB. By inducted Vb, Ib start flow and the VCC voltage of PQR11 is sustained stable. Ib is constant and
I1 increases in Proportion to time. After constant time passed Ib become to shortage and PICF1 is cut OFF (S/W OFF).

4) Feedback Control Circuit

• Operation descriptions

a) Internal OP-Amp ‘+’ base potential of PICS2 is 2.5V and external “-” input potential is connected with PRS33 and PRS34 to maintain Vout of 4.4V.

6-4

Copyright© 1995-2011 SAMSUNG. All rights reserved.

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Summary of Contents for DVD-E360

Page 1: ... SJ SQ SW TK UM XA XD XE XL XN XS XU XV ZA ZC ZF ZN ZS ZX SERVICEMANUAL DVD PLAYER Contents 1 Precautions 2 Product Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagrams 6 Schematic Diagrams Refer to the service manual in the GSPN see the rear cover for more information ...

Page 2: ...ication 2 7 3 Disassembly and Reassembly 3 1 3 1 Cabinet and PCB 3 1 3 1 1 Top Cabinet Removal 3 1 3 1 2 Assy Front Cabinet Removal 3 2 3 1 3 Assy Loader Removal 3 3 3 1 4 Main PCB and S M P S PCB and RCA Jack PCB Removal 3 4 3 2 PCB Location 3 5 4 Troubleshooting 4 1 4 1 Troubleshooting 4 1 4 2 Software Update 4 25 4 2 1 CD Upgrade 4 25 4 2 2 Main F_W Upgrade Method 4 29 5 PCB Diagrams 5 1 5 1 Wi...

Page 3: ...nternal Block Diagram Internal Block Diagram of S M P S Circuit 6 5 6 3 S M P S S M P S PCB 6 6 6 4 Video Main PCB 6 7 6 5 Audio Main PCB 6 8 6 6 Decoder Main PCB 6 9 Copyright 1995 2011 SAMSUNG All rights reserved ii ...

Page 4: ... include but are not limited to excessively wide cabinet ventilation slots and an improperly fitted and or incorrectly secured cabinet back cover c Leakage Current Hot Check With the instrument completely reassembled plug the AC line cord directly into a 230V 220V 240V AC outlet Do not use an isolation transformer during this test Use a leakage current tester or a metering system that complies wit...

Page 5: ...personal injury or property damage resulting therefrom 4 Observe original lead dress Take extra care to assure correct lead dress in the following areas 1 near sharp edges 2 near thermally hot parts be sure that leads and components do not touch thermally hot parts 3 the AC supply 4 high voltage and 5 antenna wiring Always inspect in all areas for pinched out of place or frayed wiring Do not chang...

Page 6: ...recautions are indicated or printed on the cabinet chassis or components When servicing follow the printed or indicated service precautions and service materials 3 The components used in the unit have a specified flame resistance and dielectric strength When replacing components use components which have the same Components identified by shading in the circuit diagram are important for safety or f...

Page 7: ...e only a grounded tip soldering iron to solder or unsolder ESD devices 4 Use only an anti static solder removal devices Some solder removal devices not classified as anti static can generate electrical charges sufficient to damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a replacement ESD device from i...

Page 8: ...et This gives them the same ground as the sheet 4 Remove the optical pick up block 5 Perform work on top of the conductive sheet Be careful to let your clothes or any other static sources touch the unit NOTE Be sure to put on a wrist strap grounded to the sheet Be sure to lay a conductive sheet that is grounded to the table made of copper Fig 1 3 6 Short the short terminal on the PCB which is insi...

Page 9: ...2 Product Specifications 2 Product Specifications 2 1 Product Specification Copyright 1995 2011 SAMSUNG All rights reserved 2 1 ...

Page 10: ...cellent Sound Dolby Digital a technology developed by Dolby Laboratories provides crystal clear sound reproduction Progressive Scan Progressive Scanning creates an improved picture with double the scan lines of conventional interlaced picture CD RIPPING This feature lest you to copy audio files from disc to USB device into MP3 format Only Audio CD CDDA 1080P PLAYBACK This player upconverts regular...

Page 11: ...2 Product Specifications 2 1 4 Region Code The Region number for this DVD Player is described on the rear panel of the DVD Player Copyright 1995 2011 SAMSUNG All rights reserved 2 3 ...

Page 12: ...B video device class web cam like devices motion image capture devices 0XE0 Wireless controller for example Bluetooth dongles 2 1 5 c USB Connector The connector are designed to be robust It is difficult to incorrectly attach a USB connector The connector are particularly cheap to manufacture The connector enforce the directed topology of a USB network Amoderate insertion removal force is specifie...

Page 13: ...2 Product Specifications 2 1 5 d Basic flow and interrelationship of the USB communication model Copyright 1995 2011 SAMSUNG All rights reserved 2 5 ...

Page 14: ...2 Product Specifications 2 2 Chassis Product Specification 2 6 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 15: ...2 Product Specifications 2 3 Option Product Specification Copyright 1995 2011 SAMSUNG All rights reserved 2 7 ...

Page 16: ...3 Disassembly and Reassembly 3 Disassembly and Reassembly 3 1 Cabinet and PCB NOTE Connector Must be removed with care 3 1 1 Top Cabinet Removal 3 1 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 17: ...3 Disassembly and Reassembly 3 1 2 Assy Front Cabinet Removal Copyright 1995 2011 SAMSUNG All rights reserved 3 2 ...

Page 18: ...3 Disassembly and Reassembly 3 1 3 Assy Loader Removal 3 3 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 19: ...3 Disassembly and Reassembly 3 1 4 Main PCB and S M P S PCB and RCA Jack PCB Removal Copyright 1995 2011 SAMSUNG All rights reserved 3 4 ...

Page 20: ...3 Disassembly and Reassembly 3 2 PCB Location 3 5 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 21: ...4 Troubleshooting 4 Troubleshooting 4 1 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 1 ...

Page 22: ...4 Troubleshooting 4 2 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 23: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 3 ...

Page 24: ...4 Troubleshooting 4 4 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 25: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 5 ...

Page 26: ...4 Troubleshooting 4 6 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 27: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 7 ...

Page 28: ...4 Troubleshooting 4 8 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 29: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 9 ...

Page 30: ...4 Troubleshooting 4 10 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 31: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 11 ...

Page 32: ...4 Troubleshooting 4 12 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 33: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 13 ...

Page 34: ...4 Troubleshooting 4 14 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 35: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 15 ...

Page 36: ...4 Troubleshooting 4 16 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 37: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 17 ...

Page 38: ...4 Troubleshooting 4 18 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 39: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 19 ...

Page 40: ...4 Troubleshooting 4 20 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 41: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 21 ...

Page 42: ...4 Troubleshooting 4 22 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 43: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 23 ...

Page 44: ...4 Troubleshooting 4 24 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 45: ...4 Troubleshooting 4 2 Software Update 4 2 1 CD Upgrade Copyright 1995 2011 SAMSUNG All rights reserved 4 25 ...

Page 46: ...4 Troubleshooting 4 26 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 47: ...4 Troubleshooting Copyright 1995 2011 SAMSUNG All rights reserved 4 27 ...

Page 48: ...4 Troubleshooting 4 28 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 49: ...4 Troubleshooting 4 2 2 Main F_W Upgrade Method Copyright 1995 2011 SAMSUNG All rights reserved 4 29 ...

Page 50: ...5 PCB Diagrams 5 PCB Diagrams 5 1 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 51: ...5 PCB Diagrams 5 1 Wiring Diagram Copyright 1995 2011 SAMSUNG All rights reserved 5 2 ...

Page 52: ...5 PCB Diagrams 5 2 Main PCB 5 3 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 53: ...5 PCB Diagrams Copyright 1995 2011 SAMSUNG All rights reserved 5 4 ...

Page 54: ...5 PCB Diagrams 5 5 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 55: ...5 PCB Diagrams 5 3 S M P S PCB Copyright 1995 2011 SAMSUNG All rights reserved 5 6 ...

Page 56: ...5 PCB Diagrams 5 7 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 57: ...5 PCB Diagrams 5 4 RCA Jack PCB Copyright 1995 2011 SAMSUNG All rights reserved 5 8 ...

Page 58: ...rent or amended since this drawing was prepared CAUTION Most semiconductor devices are electrostatically sensitive and therefore require the special handling techniques described under the electrostatically sensitive ES devices section of this service manual WARNING Components identified with the mark have the special characteristics for safety When replacing any of these components Use only the s...

Page 59: ...6 Schematic Diagrams 6 1 All Block Diagram 6 2 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 60: ...to DC c PCD01 PCD02 PBS01 Noise removal at power input output d PVA1 SMPS protection at power surge input 2 SNUBBER Circuit PDS11 PCD12 PRS13 PCD11 PPS12 a Prevent residual high voltage at the terminals of switch during switch off Suppress noise High inverted power occurs at switch PQR11 off because of the 1st winding of transformer V L1 xdi dt L1 Leakage Induction A very high residual voltage exi...

Page 61: ... and the VCC voltage of PQR11 is sustained stable Ib is constant and I1 increases in Proportion to time After constant time passed Ib become to shortage and PICF1 is cut OFF S W OFF 4 Feedback Control Circuit Operation descriptions a Internal OP Amp base potential of PICS2 is 2 5V and external input potential is connected with PRS33 and PRS34 to maintain Vout of 4 4V 6 4 Copyright 1995 2011 SAMSUN...

Page 62: ...ecrease PICS1 C E Current decrease PICS1 C E Voltage increase PICS1 F B Voltage increase OUT DUTY increase TRANS Primary Cuttent Increase TRANS Primary Power increase Vout maintain 4 4V Vout increase PRD31 PRD32 Reduce 4 4V overshoot PRS32 PCS32 Prevent PICS2 oscillation for phase correction 6 2 3 Internal Block Diagram Internal Block Diagram of S M P S Circuit Internal Block Diagram Copyright 199...

Page 63: ...6 Schematic Diagrams 6 3 S M P S S M P S PCB 6 6 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 64: ...6 Schematic Diagrams 6 4 Video Main PCB Copyright 1995 2011 SAMSUNG All rights reserved 6 7 ...

Page 65: ...6 Schematic Diagrams 6 5 Audio Main PCB 6 8 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 66: ...6 Schematic Diagrams 6 6 Decoder Main PCB Copyright 1995 2011 SAMSUNG All rights reserved 6 9 ...

Page 67: ...6 Schematic Diagrams 6 10 Copyright 1995 2011 SAMSUNG All rights reserved ...

Page 68: ...na Japan https gspn2 samsungcsportal com N America S America https gspn3 samsungcsportal com This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law 2011 Samsung Electronics Co Ltd All rights reserved Printed in Korea ...

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