What a klutz, I destroyed 2 components on my mother board, they measure out to be capacitors (because of the charge and discharge charactoristics) not positive what the values could be stamped on top are these: 10 16S. A75 there are only 2 of these on the board, could you possibly help in identifying them or directing me to a schematic? They are in the corner by the PCI slots. Thanks Tom
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Um... capacitors aren't measured in MOhms (resistance or impedance), they're measured in uF (microfarads of capacitance).
Brand is of nearly no importance (you can use Nichicon, Rubycon, Sprague, any decent brand), but the uF rating and the voltage rating MUST match the originals - do NOT try to use an antirely different capacitor, it can destroy other parts (like rectifiers or power transformers), or burn PC traces right off the board.
check the capacitor(s) and replace the power components. Easy fix if handy with soldering electronics as you may need to replace capacitor(s), hopefully not mother board. Tv repairman should charge about $75-100.00 dollars for fix ...
check the capacitors and replace the power components.. if not handy with soldering electronics call Tv repairman as you may need to replace capacitors and possibly mother board .. Tv repairman may charge 75-150 dollars depending on cost of Mother board .. good luck
Please review your schematic T.V, any component around from Horizontal transistor can destroy it.because is in Short Circuit, use your DVOM for isolate the components, measure the resistance, continuity ,and test for transistor, capacitor, resistor, diode, etc. 2) You must shure if the replace is the same caractheristic from the original. Otherwise, the componente can not be result.
You can download the schematic from www. retrevo.com
change the mother board. the ic took a hit after the power board went off. it will test good without stress, but under power stress it break down. measure the output with osciloscope to check the waves you should get a saw tooth wave if the the ic is good under stress.
Take a multimeter, and measure the VOLTAGE and AMPERAGE being emitted by the AC power-supply. If "none", or much less than the ratings printed on the label, then it's time to replace the power-supply.
Otherwise, it most-likely is the connector where the AC adapter is plugged-in to the motherboard that is not transmitting, i.e., electrically-disconnected from the motherboard.
Maybe, resoldering the leads from the socket to the motherboard will fix the problem. Or, take the laptop to a qualified technician, for proper repair.
Some years ago I had a similar issue with an IBM and with that one the capacitor that filters out the current (right after the power jack, usually the very first capacitor that gets the power) was short circuited. It was a ceramical capacitor, at least that's how we call them here.
Some people I contacted said it has faulty capacitors that need to be relaced. Available at radio shack. Most likely causes in order:
DM Module Capacitors have FAILED.
DM Module is defective.
EEPROM Board failure
Power Supply failure.
To replace capacitors:
Keep yourself "grounded" when working with the circuit board. Static electricity will destroy electronic components.
replacing the Capacitors, press them "down" onto the circuit board as
far as they will go, hold them down, solder into place and clip the
excess terminal lengths flush with solder. Only by doing this will the
metal shield (little silver box) slide down and over the circuit board
during re-assembly. There is not a lot of clearance when doing this, as
the 105C Capacitors are slightly longer that the originals. With
minimal effort everything does fit back together.
Use ONLY 105º C capacitors with a voltage rating of 35 V.
the DM circuit board into the Mother board; press virmly and ensure a
proper seat of the DM board. Next, slide the metal case down and over
the DM circuit board.