STORZ Cold Light Source TL300 Repair Case

1. Appearance inspection: Check the appearance of the host is intact, and there is no obvious sign of external damage.

2. Fault phenomenon: The device is turned on for inspection, and the screen is damaged and cannot be used.

3. Disassembly diagnosis: Disassembly inspection shows that the screen is damaged and cannot be used. After troubleshooting the screen failure, it was found that the mainboard had a circuit failure, and the parameters of several chips fluctuated greatly during operation, and some chips were damaged.

4. Repair plan: ① Replace the screen assembly ④ Repair the mainboard ③ Calibrate the output voltage and strengthen the internal firmware.