Optical Power Meter Not Showing Power? | Photodiode Working & Repair Guide скачать в хорошем качестве

Optical Power Meter Not Showing Power? | Photodiode Working & Repair Guide

In this video, we explain how to repair an Optical Power Meter that powers ON but does NOT show any optical power reading. You will learn: • How an Optical Power Meter works • What is a photodiode and how it converts light into electrical signal • Common reasons why power meter shows zero or no reading • Photodiode failure symptoms • Optical input port contamination issues • Internal amplifier and ADC fault explanation • Simple multimeter tests for photodiode • When photodiode replacement is required This video is useful for: • Fiber technicians • Telecom engineers • FTTH installers • Optical lab technicians • Beginners learning fiber tools repair Applicable to: EXFO, Anritsu, JDSU, Joinwit, Grandway, Kingfisher and generic OPM devices. KEY POINTS COVERED (FOR RETENTION): • Optical Power Meter block diagram • Photodiode (PIN / APD) working principle • Why power ON but no optical value appears • Dirty ferrule vs damaged photodiode • How light converts to current • Why display stays at 0 dBm or - - - • Repair vs replacement decision 1. Optical Power Meter Repair | Power ON But No Reading | Photodiode Explained 2. Optical Power Meter Not Showing Power? | Photodiode Working & Repair Guide 3. Optical Power Meter Fault Repair | No Optical Power Display | Fiber Tools 4. How to Repair Optical Power Meter | Photodiode Testing Explained 5. Optical Power Meter Troubleshooting | ON But No Signal | Step-by-Step Fix #OpticalPowerMeter #OPMRepair #FiberOpticTools #Photodiode #FiberTroubleshooting #TelecomEngineering #FTTH #FiberOpticRepair #OpticalTesting #EXFO #FiberTechnician #TelecomTools #OpticalPower