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File name DLV-32_37_42C7 SL300V.pdf

S/M NO. : TSL300VEF1 Service Manual LCD TV CHASSIS : SL-300V Model : DLV-32C7SMB DLV-37C7LMB DLV-42C7LMB Caution : In this Manual, some parts can be changed for improving. their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List)in Service Information Center. MAR. 2007 Contents 1. Safety Precaution 2. Preliminary Troubleshooting 3. Product Specification 1) Standard of Product 2) Available Input Signal 3) Available PIP Mode 4. Service Remote Controller 1) Key Arrangement 2) EEPROM Data 5. Block Diagram 6. Hardware Troubleshooting : Digital Board 7. Hardware Troubleshooting : SMPS 1) FEL-3237A : DLV-32C7SMB, DLV-37C7LMB 2) FEL-42C1 : DLV-42C7LMB 8. Bill Of Materials 1) DLV-32C7SMB 2) Differental Materials Besides Mechanical Parts 9. How to S/W Upgrade Tools 1) Requirements 2) Outline of the S/W upgrade tool, which is DTV_Updater.exe 3) How to upgrade decoder of LCD TV 4) How to upgrade PIC micom of LCD TV 10. Schematics : Digital Board 11. Schematics : SMPS 1) FEL-3237A : DLV-32C7SMB, DLV-37C7LMB 2) FEL-42C1 : DLV-42C7LMB 12. Mechanical Development Figure 1) DLV-32C7SMB 2) DLV-37C7LMB 3) DLV-42C7LMB 3 4 5 5 6 6 7 7 8 11 12 16 16 18 20 20 29 30 30 30 31 35 40 49 49 50 51 51 52 53 -2- 1. Safety Precaution (1) When moving or laying down a LCD Set, at least two people must work together. Avoid any impact towards the LCD Set. (2) Do not leave a broken LCD Set on for a long time. To prevent any further damages, after checking the condition of the broken Set, make sure to turn the power (AC) off. (3) When opening the BACK COVER, you must turn off power (AC) to prevent any electric shock. (4) When loosening screws, check the position and type of the screw. Sort out the screws and store them separately for reassembling. Because screws holding PCBs are working as electric circuit grounding, make sure to check if any screw is missing when assembling / reassembling. Do not leave any screws inside the set. (5) A LCD Set contains different kinds of connector cables. When connecting or disconnecting cables, check the direction and position of the cable beforehand. (6) Connect/disconnect the connectors slowly with care especially FFC (film) cables and FPC cables. Do not connect or disconnect connectors instantaneously with force, and handle them carefully for reassembling. (7) Connectors are designed so that if the number of pins or the direction does not match, connectors will not fit. When having problem in plugging the connectors, check their kind, position, and direction. -3- 2. Preliminary Troubleshooting 1) LCD TV does not response or remote controller does not work. - Check the power cord to be plugged. - Check the battery of the remote controller. 2) Sound is discontinuous or broken sometimes. - Check if [SOUND] -> [AVC] is [ON]. - Set the sound effect into 'F Mono'. - Set the [SOUND] -> [DTV Volume] into proper value. - [DTV Volume] is enabled only in digital program. 3)