Acer AL2671W AL2671W Service Guide - Page 39

Chapter 4 Troubleshooting Use the following procedure as a guide for Acer LCD TV AL2671W problems. NOTE: The diagnostic tests are intended to test this model. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. Duplicate symptom and obtain the failing symptoms in as much detail as possible. 2. Distinguish symptom. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation. 3. Disassemble and assemble the unit without any power sources. 4. If any problem occurs, you can perform visual inspection before you fellow this chapter's instructions. You can check the following: power cords are properly connected and secured; there are no obvious shorts or opens; there are no obviously burned or heated components; all components appear normal. 5. Use the following flow chart determine which part to be replaced. NOTE: N.G. in the below figures means "No Good". SStatratrt NNoo Does the unit Power on YYeses No power on LCD Fail DDC / POP PIP Fail RF No Signal / HDTV Fail Unit Hang Up Suddenly AV1,AV2 Speaker No Sound TV Channel Fail Remote Control Fail Button Function Fail AV3 Speaker No Sound 1 2 4 6 8 10 3 5 7 9 11 Chapter 4 57