If the Visual Fault Locator (VFL) on the FF-980REV OTDR becomes very weak, the performance issue is caused by a broken VFL laser. To resolve this hardware failure, the defective VFL laser component must be replaced.
Diagnosis and Repair Action
Problem Identification: The VFL output is very weak and fails to emit a standard optical signal.
Root Cause: This loss of optical power is directly caused by a broken VFL laser diode.
Required Solution: The broken VFL laser cannot be recalibrated; it has to be changed to restore normal testing functionality.
For hardware replacement support, spare parts, and complete technical specifications, please visit the main product page: https://firstfibertech.com/product/ff-980rev-mini-pro-otdr/
