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I can't help you (directly) with the resistor value, but be aware that if it exploded, there is probably another bad component (such as a capacitor, transistor, and/or an SCR). Replacing only the resistor may result in the same problem, or may not even work at all due to another bad component. If you do find out the value, try putting in a resistor of the same value, but with a higher wattage rating. I once had a washing machine in which the model had a known problem with circuit boards blowing. I solved it by replacing a bad transistor and installing a higher wattage resistor that had blown up like yours. It never failed again. The way I found the value of the blown resistor is, I looked up a replacement board online, then magnified the photo, and looked at the color code on that same resistor in the photo. How I found the bad transistor is too complicated to explain in few words, but you can google the procedure. (You'll need a multi-meter at the very least; preferably _with_ a built in transistor checker. However, a _totally_ blown transistor can be found with only the resistance settings on a regular multi-meter).
Let us use a bit of logic to resolve this... I have an Axiom but it would be a lot of screws to take out to get to the part... so let us think about this. The resistor value starts with a "1" and we know it is 5% tolerance (gold). we know the resistor burnt up with likely 5 volts on it... Value could be 1000 ohms, however the voltages present (12 volts max) would NOT have burned up a resistor of 1000 ohms. The USB area is mostly 5 volts and across 100 ohms is only a quarter watt... not enough to really burn up a resistor... First thing is to MEASURE that the resistor s open... in spite of being burned, it MAY still be OK... these resistors now usually either open or remain close to their value. The resistor ALSO may be a fusible resistor intended to act as a fuse... Is the resistor open or not? is it near a resistance with a "1" as the first digit? If it is not open I suspect it is not all of the problem. In that case, look for a burned circuit trace on the board. If it is open, then MEASURE the voltage across the resistor with the power applied. If you find 5 volts, then it MIGHT be a 10 ohm used to limit the USB current to 500ma. Get back to me with your findings... I have unraveled many of these things...
I do not have a model number to go with. But I would imagine this TV is still on the new side. If this is the case, the values on the starting resistors for the inverter board have changed values. You will need an inverter board replaced. Or if you know of an authorized Philips Center, they may replace the resistors with the same value or new values, depending on the model number of your TV. Thanks for asking and show a few hands of support!
The resistors are color coded.There should be 3 bands which are slightly separate from the 4th band.The 4th band is usually gold,silver,or i forget the third color which is actaually a %.The top 3 bands can tell me the value of the resistor.If you tell me all 4 colors I should be able to tell you the value,with the gold/silver/whatever as the fourth.The first one should be right near the end or top.The only 1 problem will be trying to determine the wattage rating but is usually very small within a circuit.Greg
I use the ohmmeter function on my digital multimeter (DMM). You can get a basic DMM from Sears or Radio Shack for about $30.
First, (safety check) measure the voltage across the terminals unless you know there is no power in the circuit, or better yet, disconnect the resistor so other components don't give you a false reading. Attempting to read the value of a resistor in a live circuit will give you a meaningless number at best, and may severely damage your meter at worst. It could also damage other parts in the circuit.
Now switch your meter to the lowest ? range (Greek capital Omega, for Ohm) greater than the expected value of the resistor. Connect one test lead to each end of the resistor. The number you read should be the expected value plus or minus the tolerance (e. g., a 100 ? 5% resistor should read somewhere between 95.0 - 105.0 on the 200 ? range.). A bad resistor will usually show up as 1___ (over-range) because it will be burned out and open. Some very old carbon composition resistors will short (read much less than 1 ?) when they fail.
Often, a visual inspection will identify a bad resistor - if you can see that it's burned and broken, it's bad and further testing is unnecessary. The ohmmeter is for all the other cases.
R466 is chip resistor 220 Ohms 1/8 watt connecting between Emitter pins of Q408 and Q409. Its part number is ... R466 "1-216-182-00" RES-CHIP 220 5% 1/8W Available in Part Store. Let me know if you need further info.