My Philips 32fp5320/26 had a fried master inverter bd, I replaced the master & slave with new bd's & the unit work fine for about 15 hours of run time, then when turned on, no pix, snd ok. The inverters stopped runnung. In deperation, i swapped out the slave bd with the orginal & it worked ok for about another 15 hours, now the same symptom again. I can not find any NG parts on the inverters. Is it looking like I got weak fl tubes? Ed P
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Re: philips 32pf5320/26 inverter failure
The 24 volt source is fine, has no ripple. I have 3.2 volt input from the control bd. The master inverter bd is 6632L-0189 & the slave is 6632L-0190a.
The orginal master inverter bd had blown ele. caps , open 6.amp smd fuse, & shorted driver IC's. The unit worked ok after changing both boards for about 15 hours. I am ordering repl bds now. sometimes when I probe for signal with my scope, the inverters start working. I am thinking that I got a marginal new inverter bd. can anyone input on this symptom? searching**** ecp
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Merry Christmas
Does anyone know how to bypass the protection ic OZ9928SN on a LG 47LG5000 inverter using a I470H1-20A MASTER pcb?
Pictures attached
Thanks in advance...12-26-2024, 05:25 AM -
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I have a tripp-lite aspint 3636vr inverter charger which blow some of mosfet transistors. I replaced them repaired also the driver circuit and tested but the mosfets burn again.
It work very well as inverter and also as charger if I let the rear switch in auto mode (inverter) and charger only(charging) but in auto when I connect the feed line 220V AC first time it pass ok to line and start charging the batteries but when I remove the feed line it pass to inverter mode and if I do it again the second time when passing from charging to inverter the Main transformer start making a...03-06-2023, 07:07 AM
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