Question about Panasonic PT-56TWD63 56 in. Rear Projection Television
Unplug chassis from front and back,remove chassis from back.Replace Ic's w/OEM or better quality only.Be sure to remove solder from all four reg. pins and clean/resolder.Replace 4amp fuse in power supply.
Posted on Sep 24, 2007
TV Tech - well another issue has cropped up today. The TV turns on for about 15 secs and then automatically shuts off. Seems like a power supply issue but not sure.. Your thoughts?
Posted on Oct 08, 2007
If you are removing a defective chip, can you just cut the pins carefully with a wire cutter and later apply heat to pull them off?
Posted on Jan 29, 2008
You have to pull the chasis completly out the set. Make sure you know where all the wires go that u have to unplug. Also u may need to change open resistors near the convergence amplifiers.
Posted on Apr 23, 2009
SOURCE: Pt-53WXD63g led blinks 3 times
that is an indication that you need to replace the convergence IC's if you are handy and can do light soldering please contact me at techman32katyahoodotcom for a DIY solution and save yourself at least 400 bucks or so
Posted on Aug 06, 2009
I have no experience at tv repair but I solved this problem and you can too. I bought 2 stk 392-150 chips made by sanyo on ebay for $30. I bought a low life jewelers loupe which is a sort of cap with different lens pieces out on the end of the bill for $10 on ebay. I bought a soldering iron and the smallest diameter silver solder and a little suction bulb and heat sink grease from radio shack for $20.
Take the back off tv. Locate circuit board with ics. remove screws that hold board . there are several wire bridges, snap these apart also. number connections with marker, undo connections. you will note that this board is connected to 3 crts by cable, do not disconnect this cable! This board must remain connected to crts by this cable! (so much for tv repair.com telling you how easy you can remove the board and solder it in your workshop) this board must remain connected to the crts, you can flip the board upside
down but all work must be done at back of tv
undo screws on ics. pry ics loose from heatsink. put on jewlwers loupe then turn board over and heat up each ic pin then **** molten solder into suction bulb. each ic has 19 pins. remove old ruined ics ( shame on Hitachi) my tv was only 3 years old! Put gob of heatsink grease on new ic, spread with razor blade, not to thick or thin, stick new ic thru holes in board and screw to heatsink . solder all pins to circuit board. look at the resistors that are close to the ics. if one is burned black it will have to be replaced, they act as circuit breakers and will burn out to protect other parts of the tv. usually the resistors are fine it was just the cheapshit hitachi ics that were bad.
Put everything back together and turn on tv for 20 min. after 20 min do the magic focus. your tv should focus up and be good as new. I have fixed several hitachi 51g500a in this way. Good luck!
Posted on Sep 21, 2009
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