Sharp LC-60LE450U/LC-60LE452U Service manual
2
Contents
IMPORTANT SERVICE SAFETY PRECAUTION……………………………………………………..3
1. Function Diagram………………………………………………………………………………………..4
2. System block……………………………………………………………………………………………..5
3. Disassembly method
3.1 Disassembly stand unit and Rear cabinet Ass’y……………………………………………......6
3.2 Disassembly the metal parts and attached Ass’y……………………………………………….7
3.3 Disassembly the board Ass’y…………………………………………………………………......8
3.4 Harness picture……………………………………………………………………………………..8
3.5 Tearing off the LVDS cable with silicon………………………………………………………….9
4. Basic schematic of port
4.1 Power circuit……………………………………………………………………………………….10
4.2 Reset circuit………………………………………………………………………………………..12
4.3 IR&KEY circuit……………………………………………………………………………………..13
4.4 VGA INPUT………………………………………………………………………………………...14
4.5 SPDIF OUTPUT…………………………………………………………………………………...14
4.6 AV& YPBPR……………………………………………………………………………………….15
4.7 HDMI Circuit……………………………………………………………………………………….16
4.8 USB Circuit………………………………………………………………………………………...17
4.9 AMP Circuit………………………………………………………………………………………...17
4.10 Main controller MSD3393LU…………………………………………………………………...18
5. Trouble shooting table
5.1 Power Troubleshooting…………………………………………………………………………...19
5.2 Display Troubleshooting………………………………………………………………………….20
5.3 Audio Troubleshooting…………………………………………………………………………….22
5.4 Function Troubleshooting………………………………………………………………………...23
6. Software update procedure
6.1 Enter factory menu mode method……………………………………………………………….29
6.2 Software update procedure………………………………………………………………………29
7. Connector define………………………………………………………………………………………..31
8. Critical components list
8.1 Critical components list for Main Board…………………………………………………………34
8.2 Critical components list for Power Board……………………………………………………….35
9. Mechanical Explosion Diagram
9.1 TV Set Explosion Diagram………………………………………………………………………..42
9.2 Packing Explosion Diagram………………………………………………………………………44
10. SUPPLIED ACCESSORIES………………………………………………………………………….45
To Next Page
Loading...
Need help?
General