Service ManualModel No.: HL37XLE21CONTENTSChapter 1.General Information1-1. Document Information ....................................................................... 31-2. General Guidelines .............................................................................. 31-3. Important Notice ................................................................................... 31-3-1. Follow the regulations and warnings ..................................................... 31-3-2. Be careful to the electrical shock ........................................................... 31-3-3. Electro static discharge (ESD) ............................................................... 31-3-4. About lead free solder (PbF) .................................................................. 41-3-5. Use the genewing parts (specified parts) .............................................. 41-3-6. Safety check after repairment ................................................................ 41-3-7. Ordering Spare Parts ............................................................................. 61-3-8. Photo used in this manual ..................................................................... 61-4. How to Read this Service Manual .................................................. 71-4-1. Using icons: ........................................................................................... 7Chapter 2. Specifi cation2-1. Specification list ................................................................................... 82-2. External pictures (four faces) .......................................................... 9Chapter 3. Disassemble and Assemble3-1. Remove the Stand ............................................................................. 113-2. Remove the Back Cover .................................................................. 113-3. Remove the Adhesive Tape ............................................................ 113-4. Remove the Mainboard .................................................................... 113-5. Remove the Power Supply Modules ........................................... 123-6. Remove the Terminal Bracket ....................................................... 123-7. Remove the Remote Control Board ............................................ 123-8. Remove the Speaker ......................................................................... 123-9. Remove the Stand Backstop ......................................................... 123-10. Remove the Indicator Light .......................................................... 12Chapter 4. Location of Controls and Components4-1. Board Location ................................................................................... 134-2. Main Board & AV Board ................................................................... 134-2-1. Function Description: ........................................................................... 144-2-2. Connector definition ............................................................................. 144-3. Power Supply Board ......................................................................... 15