Acer Aspire S5-391 Acer S5-391 Notebook Service Guide - Page 76

Troubleshooting This chapter contains information about troubleshooting common problems associated with the tablet. General Information The following procedures are a guide for troubleshooting computer problems. The step by step procedures are designed to be performed as described. NOTE: • The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. • Do not replace a non-defective FRU. 1. Obtain as much detail as possible about the problem. 2. If possible, verify the symptoms by re-creating the failure through diagnostic tests or by repeating the operation that led to the problem. 3. Use Table 4-1 with the verified symptom(s) to determine the solution. Table 4-1. Verified Symptoms Symptoms See Power on Issues Figure 4-1. Power On Issues on page 4-3 No Display Issues Figure 4-2. No Display Issues on page 4-4 LCD Picture Failure Figure 4-3. LCD Picture Failure on page 4-6 Internal Keyboard Failure Figure 4-4. Internal Keyboard Failure on page 4-7 Touchpad Failure Figure 4-5. Touchpad Failure on page 4-8 Internal Speaker Failure Figure 4-6. Internal Speaker Failure on page 4-9 Microphone Record Failure Figure 4-7. Microphone Record Failure on page 4-11 Extend MIC and Speaker Failure Figure 4-8. Extend MIC and Speaker Failure on page 4-12 Motor Failure Figure 4-9. Motor Failure on page 4-13 Servo Motor Troubleshooting Figure 4-10. Motor Calibration Flow on page 4-14 USB Failure Figure 4-32. USB Failure on page 4-23 Wireless Function Failure Figure 4-33. Wireless/BT Function Failure on page 4-24 2-in-1 Card Function Failure Figure 4-34. 2-in-1 Card Function Failure on page 425 Units Thermal Failure Figure 4-35. Unit Thermal Failure on page 4-26 Cosmetic Failure Figure 4-36. Cosmetic Failure on page 4-27 Other Functions Failure Page 4-28 4. If the issue is still not resolved, see Online Support Information on page 8-2. Troubleshooting 4-2