Please Help.... I have a 47pfl7422d and the screen is now dim on the left side ... i was told a bad slave inverter so i replaced it, still dim, i removed the lcd screen and looked at the bulbs, right side is bright and the left sides are dim as if not working at all, could someone please help as i dont want to take this tv in for repairs Thanks
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Re: phillips 47pfl7422d is dim on left side of lcd
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Re: phillips 47pfl7422d is dim on left side of lcd
That indicate insufficient voltage out of the inverter. Check the input voltage and of course pictures help us help you. Attach the pictures using 'Manage Attachments'.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: phillips 47pfl7422d is dim on left side of lcd
i asked someone from just answer and they tod me to replace the master inverter, do you think this is the correct thing to doComment
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Re: phillips 47pfl7422d is dim on left side of lcd
i know there is the master and slave inverters, is there more then those two?Comment
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Re: phillips 47pfl7422d is dim on left side of lcd
i was looking at the 2 capacitors on the master and slave inverters and the new slaves capacitors look clean as where the old slave and masters look like they have opened up on the end and have had a blackish material ooze from them. Does this mean they are bad??Attached FilesComment
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Re: phillips 47pfl7422d is dim on left side of lcd
Yes, they are bad. This is why we always ask for photos. Replace the bad capacitors with something like Panasonic FR or FM series from digikey or mouser.
If that is a 680uF 35V cap, this will work (assuming height and diameter are okay)
http://search.digikey.com/us/en/prod...2417-ND/613778Last edited by retiredcaps; 11-17-2011, 12:44 AM.--- begin sig file ---
If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.
We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.
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Re: phillips 47pfl7422d is dim on left side of lcd
thank you for your help, i may just get the master board from shopjimmy.com , they are local and 35.00 for a new board.Comment
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For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: phillips 47pfl7422d is dim on left side of lcd
...and the new inverter(s) will need its/their caps replaced as they're using the same brand and series of SamWa crap capacitors!
veritas odium paritComment
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Re: phillips 47pfl7422d is dim on left side of lcd
yeah i just ordered the new board that will be here tomorrow, its not my tv but im sure if someone wanted the bad boards we could work something out.Comment
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Re: phillips 47pfl7422d is dim on left side of lcd
well put the new master in and same issue, still dim on left side
any ideas, now i have replaced the master and slave inverters.... does anyone think the board that the bulbs plug into is badComment
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Re: phillips 47pfl7422d is dim on left side of lcd
i have the tv on and the back still off it seems as if the slave inverter has no power... its not buzzing like the master at what points should i check for voltageComment
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Re: phillips 47pfl7422d is dim on left side of lcd
ok so i checked the input voltages at the slave inverter and found that vin-1 - vin-5 have 23.95 volts, so it has power but seems like its not turning on anymoreLast edited by Tc4595; 11-18-2011, 06:12 PM.Comment
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Re: phillips 47pfl7422d is dim on left side of lcd
well thank you all, i just checked the ceramic fuse on the slave board and it is bad, now to replace the little guy, hooked up jumper wire to the old master and bam it turned on... hell yeahComment
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Re: phillips 47pfl7422d is dim on left side of lcd
That was the new slave?veritas odium paritComment
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Re: phillips 47pfl7422d is dim on left side of lcd
yeah i dont know how it was popped unless it came that way or because i didnt replace both at the same time... but i soldered a the fuse from my old master to the new slave and the tv looks greatComment
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Re: phillips 47pfl7422d is dim on left side of lcd
Thanks to all in this tread,i fixed a same tv whit the same problem just reading hereComment
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Re: phillips 47pfl7422d is dim on left side of lcd
I've got the same problem (both caps pop'ed on the Slave but only one pop'ed on the Master). Do you think I can just replace the caps or is there potentially something else bad on the board too? Someone in the thread mentioned a ceramic fuse but I don't see it anywhere. What else should I check before I reinstall the inverter CCA's?
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Re: phillips 47pfl7422d is dim on left side of lcd
The capacitors are likely the only fault.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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