Toshiba vertical collapse t.v. picture tube type A68LUW696X01
Hi,this t.v. had vertical collapse and returned to normal after turning t.v. off for a few weeks then reverted to v. collapse permanently. Should I attempt to resolder the verticle board joints and if so how do I identify this part inside the t.v.?Any other suggestions? thanks,the t.v is 6 yrs old (03-23-02) a 27 inch flat tube t.v. model #27AF42 chassis # TAC 202.thanks, Mario
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Product Troubleshooting for TP61G60 61" Rear Projection Television
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Look for the PIP PCB problem..
Hello Podman6,Does the fault come on and off when you tap the case/cabinet of the TV? If so, then this is a dry joint/cold solder somewhere on the mainboard.If you are are not qualified, do not take the cover off.
Look for a "largish" aluminium heatsink, located probably near the middle of the PCB. (It may be on the right hand side.)
With the cover off &
an image showing on the TV, tap the heatsink with the "handle" of a screwdriver.
Search for the most sensitive heatsink. Disconnect the power look
closely at the other side of the most sensitive heatsink & you will probably find
a "dry jointed" I.C.
If your set has an IC.501, look for a small capacitor near this IC./it will be 1 uf/50v or 2.2 uf/50v.
You can make out which are faulty, because their caps will
be swollen on top. Here's a sample pic (not same model):
Check the specifications of the faulty capacitors, and get the replacements
from your local electronics shop. If you are comfortable with this, you can use
a pair of needle nose pliers to G-E-N-T-L-Y pull out the defunct capacitors.
Once that is done, solder in the new capacitors carefully. If are unsure how to
do this, try to get a friend who knows how to do this kinda stuff do it for
you, or get a qualified technician. Warning: If you do not
have a background in electronics repair, or are inexperienced, get a qualified
technician to do it for you.
REMEMBER there are very dangerous voltages inside a TV
that can KILL. Be sure to work SAFE when dealing with electricity. DISCONNECT
THE POWER BEFORE YOU DO ANYTHING.If you are unsure, PLEASE CALL A QUALIFIED REPAIRMAN.Hope that helps, and thank you for using FixYa!IrishDruid