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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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

Good Luck!!!

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

1 Answer

I need to replace one of the fuses on the inverte board. What size do i purchase.

I use 2.5A PICO fuse, but before wasting new fuse due to short circuits you should solder in a 1/2w MOX resistor in place of the fuse and measure the voltage drop across the resistor so you can calculate the current draw by the circuits, if the resistor burns up right away, then you have shorted out output transistors in the transformer driving section. Also check the two large electrolytic caps also, if they are bad, it will cause the fuse to blow also due to high frequency oscillation.

Basic LCD monitor and LCD TV troubleshooting guide:

Failed TV, Monitors, Caps :

Learn about bad caps:
Capacitor kits: he can make you a set of caps for you.
Please post back what you find.

Nov 06, 2010 | ViewSonic VX900 19" LCD Monitor

1 Answer

One of the tiny fuses in my Viewsonic VX900 monitor has blown. What is its part number, and where can I purchase a replacement? In addition, if I have to replace the entire inverter board, what is its...

I replace the surface mounted fuse with axial-lead fuse, PICO fuse made by LITTLEFUSE. You can try using a 1 Ohms 1/2 watt flame proof resistor in place of the fuse, if the resistor get real hot and burnt up then it may have shorted Transistors or transformer. You can get the number of the board and go to to see if he has the inverter board in stock.

Sep 03, 2010 | ViewSonic VX900 19" LCD Monitor

1 Answer

I replaced the convergence chip which fixed my main problem, but now am wondering if a faulty pico/resistor can cause poor color? Thank you,

pico resistors serves as circuit breaker like a open resistor cause your circuit to malfunction..poor color can be corrected by cleaning the three cathode lamps.wipe it with a soft cloth same with the projection mirror clean it with a soft cloth be carefull not to break the mirror.Ajust the color intensity of each cathode through it screen adjustment adjustment are place at the front pannel of your tv they are labeled screen RGB..GOOD LUCK!

please rate my help tnx.

Jun 06, 2010 | Mitsubishi VS-45609 TV

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 | Televison & Video

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

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...

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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