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Philips 42PFL3403 42PFL5403 42PFL6403 Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
PHILIPS42PFL3403 42PFL5403 42PFL6403
Nothing turned on or stand byvisually: U101 (FSQ510) cracked with 1 melted pin / C236 ( CAP 2200mf 25v ) Swollen / R101A Torn (120 ohn resistor next to the main fuse) - all were replaced and the problem persisted, I analyzed pin 5 of the FSQ and measured , I found the ZD103 zenner diode broken (SMD under the board), I replaced it and the LED then came back on but it didn't activate the relay, I replaced the relay and everything started working againreplacedo: C236 / U101 / R101A / ZD103 smd / Relé RE1 12v- 250v10aGuedes Electronic