by tzqh46hz

For Sony TV model R6, the panel indicator light is on, but it shows the "three no" phenomenon (no picture, no sound, no power). Repair思路 E8: 1. Check if the power supply circuit is normal. 2. Inspect whether there are issues with the mainboard or its components. 3. Test the inverter and backlight system for faults. 4. Examine connections and interfaces for looseness or damage. 5. Review the possibility of a fault in the control circuit or software malfunction. (Note: Specific steps may depend on detailed technical specifications and diagnostic tools.)

2011-11-16 11:41

### Troubleshooting思路: The indicator light being on indicates that the secondary switch power supply and CPU are basically normal. The main power supply should......

Q5 Haier washing machine indicator light does not light up - Repair method guide h2

2011-10-15 12:33

Source: Beijing Haier Washing Machine Repair Center http://blog.163.com/haier_xiyiji1/. Fault Phenomenon: After the power is connected, the indicator light d......