Question about Toshiba 53H71 53 in. Rear Projection Television

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Fuse or Resistor?

Could a Pico fuse have color strips on them just like a resistor?

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Lately yes, but in this case is very unlikely; if you find the pico fuse it could have the fuse ratings printed on the PCB and on the body of the fuse as well.

Posted on Jul 24, 2008

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WHAT A PICO FUSE


It is a fuse that does not look like one, in the HItachi sets they are usaully orange or green and look like a resistor.

l seem to remember the designation is something like el95 on the board it self.

Google "pico fuse photo"

Dec 22, 2012 | Hitachi 50GX49B 50" Rear Projection...

2 Answers

I replaced my convergence chips and I still have a convergence problem. Its not as bad but I still cant line up the blue convergence cross exactly


Sounds like your over half way there lol..
You now need to check the resistors positioned near the convergence ic's. They are your likely problem and go bad often when the ic's fail.

They are normally about 2watt and the values will vary but normally are like .10 ohms to 1 ohm.
I cant find a schematic to give you the exact values and locations but if these resistors measure off value at all you need to replace them with the exact value of the originals.

Heres a link to resistor color code guides just in case the value numbers are not printed on the resistors
http://www.dannyg.com/examples/res2/resistor.htm

Good Luck!!!

Nov 24, 2010 | Panasonic PT-53WX42 53" Rear Projection...

1 Answer

Blinking green light on mitsubishi ws65813 tv i replacec the capicators but last time a tech had to replace a fuse too. where is the fuse?


On the power supply board near the connectors for outputs. Probably a 'pico' fuse which is small and soldered in - looks like a solid colored smaller resistor, usually.

Apr 11, 2010 | Projection Televisions

1 Answer

Where is the fuse located for the convergence IC for ws65807


There are two 5 amp pico fuses on the same board as the IC the board location jmbers are f(A04 and F9A05 they are solid green and look like a resistor without color bands.

Mar 07, 2010 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer

Kp-46wt500


the pico fuse are the two little yellow resistor looking things under the heat fins of the convergence chips

Jan 03, 2009 | Sony KP-46WT500 46" Rear Projection...

1 Answer

How to find the convergece amps


On that chassis the only fuse affecting convergence is a 400ma pico fuse near the flyback transformer. If this fuse is open the signal board will never send the "ON" command to the convergence supply so the convergence will be dead.
If the pico isn't open then suspect the amps themselves or possibly an open resistor or two.
Bill

Dec 02, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

Trying to find the fuse and resistor locations


did you replace the picos and check the 4.7 ohm resistors / Thats usually whats wrong when the old ICs go out they take the picos and often some of the resistors as well.

Sep 22, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Samsung HCN4226 Convergence.


Did you remove one side of the resistors from circuit to check them? If you leave them in circuit a blown resistor will test good as it will read the resistance from the surrounding resistors. Usually its the 3.9 ohm resistors identified bu the bands orange,white ,gold and red. and also the 150 ohm identified by the bands brown, green, brown and gold

Jun 23, 2008 | Projection Televisions

2 Answers

Pico/ Resistors what are these??


Pico means small and these look like little small resistors, but don't have stripes like resistors, just part numbers. They should measure as a dead short and be in the immediate vicinity of the STK's

Jan 03, 2008 | Samsung HCN5527W 55" Rear Projection...

1 Answer

No voltage feeding the convergence ic's.


the B= feeding the convergance ic's will have a fuseable resistor or a "pico" fuse, ( looks like a small resistor but no color bands). try looking for one of those, I would suspect it will be near the ic's themselves, but some put them in the power supply circuit. good luck.

Dec 19, 2006 | Philips 50P8341 50" Rear Projection...

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