Tip & How-To about Televison & Video

Quick things to check on tv's and, monitors

Remove power; remove the cover: with a multimeter on "ohms" check the fuses they will be identified on the circuit boards as: F-1, F-2 etc. look over the circuit board for burned resistors and, other components i.e. leaking "domed" capacitors, next: repower safely then: using component coolant from radioshack cool the i.c.'s as you stand behind the tv / monitor while watching the monitor using a mirror to see the monitor screen (do not touch the open monitor case.) if one i.c. suddenly makes the unit work: heat it with a hairdryer on "warm" to duplicate the failure before you replace the faulty component.

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Why battery fuse get short frequently?


fuse failure is from dead short after the fuse
from your description it could be from a wire rubbed through on the chassis , problem relay , problem switch
the circuit needs to be checked with a multimeter set on ohms ( one lead on the out let of the fuse and the other lead on ground --chassis etc ) resistance and then the wire harness moved around to determine it a short circuit occurs
all items on that circuit have to be checked for short circuit as well

Jul 27, 2016 | 2011 Honda Activa

1 Answer

no power comming on tredmill what can it be


Dear Sir:

Thank you by you request , I will help you right now:

How to measure FUSEAND CONTINUITY A digitalmultimeter is the ideal multimeter t use to check fuses. You can test afuse using either a digital volt-ohmmeter or an analog volt-ohmmeter. Thedigital multimeter uses a LCD to indicate the condition of the fuse under testwhile an analog meter uses a traditional meter movement to indicate the fusecondition. Difficulty: EasyInstructions
Things You'll Need
  • Digital multimeter or analog multimeter
1. Usinga digital multimeter
o 1 Connectthe test leads to the volt-ohmmeter. Plug the black test leads into the blackjack marked "Com" or "Common" on the front of the meter.Plug the red test lead into the red jack marked "Volts/Ohms" on thefront of the meter. o 2 Setthe meter's function switch to "Ohms" and the range switch to the"R x 1" scale. If your digital multimeter is an auto ranging meter,you will not have a range switch. Instead, you'll have just a function switchbecause the meter will automatically select the right range for the quantitythat you are measuring. o 3 Turnoff the power and remove the fuse to be tested from the circuit. Never test afuse for continuity while it is still connected to the circuit that it is usedto protect. If the circuit still has voltage, the meter will be irreparablydamaged. If the fuse is still in the circuit when tested it is possible to geta false indication that the fuse is good if the meter gets a completed circuitthrough other circuit components. To be safe, always remove the fuse from thecircuit before testing it. o 4 Touchthe black test probe to one end of the fuse and the red test probe to the otherend of the fuse. It does not matter which probe you touch to which end becausefuses are not polarized. You are checking to see if there is continuity throughthe fuse element. A reading of approximately 0.5 on a digital meter's LCDindicates a good fuse. Most digital meters read their own internal fusesresistance, hence 0.5 Ohms and not 0.00 Ohms. LCD readout of "O.L."indicates no continuity through the fuse. The fuse is bad and needs to bereplaced.
Thank you in advance, sincerely. God bless you.

If you need further assistance, please contact me.

E.CUADRA
MANAGUA, NICARAGUA. C.A

Sep 29, 2011 | Life Fitness 9500HR Next Generation...

1 Answer

Sole F85 - LS1 appeared on the screen. Motor is not moving. What could be the possible cause?


Dear Sir:

Thank you by your request. I will try to help you, inmediately.

LS1- Means loss of signal.

Please check this very carefully

Connect the machine at your receptacle and try again, if you note there are some red lamp on in the motor control board : is indicative that you must check the conection with motor (plugs) loose or dirty( clean with some special spray for contact, but before to due that disconnect the machine again.
If the problem persist you must exchange the display board.

If not Red lamp is on, you can check the motor if is open, or short, or in band condition, you must check with the DVOM, ( digital voltimeter) and finally if you repair the motor an try again, the faulty is motor control board.
How to measure FUSEAND CONTINUITY A digitalmultimeter is the ideal multimeter t use to check fuses. You can test afuse using either a digital volt-ohmmeter or an analog volt-ohmmeter. Thedigital multimeter uses a LCD to indicate the condition of the fuse under testwhile an analog meter uses a traditional meter movement to indicate the fusecondition. Difficulty: EasyInstructions
Things You'll Need
  • Digital multimeter or analog multimeter
1. Usinga digital multimeter
o 1 Connectthe test leads to the volt-ohmmeter. Plug the black test leads into the blackjack marked "Com" or "Common" on the front of the meter.Plug the red test lead into the red jack marked "Volts/Ohms" on thefront of the meter. o 2 Setthe meter's function switch to "Ohms" and the range switch to the"R x 1" scale. If your digital multimeter is an auto ranging meter,you will not have a range switch. Instead, you'll have just a function switchbecause the meter will automatically select the right range for the quantitythat you are measuring. o 3 Turnoff the power and remove the fuse to be tested from the circuit. Never test afuse for continuity while it is still connected to the circuit that it is usedto protect. If the circuit still has voltage, the meter will be irreparablydamaged. If the fuse is still in the circuit when tested it is possible to geta false indication that the fuse is good if the meter gets a completed circuitthrough other circuit components. To be safe, always remove the fuse from thecircuit before testing it. o 4 Touchthe black test probe to one end of the fuse and the red test probe to the otherend of the fuse. It does not matter which probe you touch to which end becausefuses are not polarized. You are checking to see if there is continuity throughthe fuse element. A reading of approximately 0.5 on a digital meter's LCDindicates a good fuse. Most digital meters read their own internal fusesresistance, hence 0.5 Ohms and not 0.00 Ohms. LCD readout of "O.L."indicates no continuity through the fuse. The fuse is bad and needs to bereplaced.
Thank you in advance, sincerely . God bless you

If you need further assistance, please contact me.

E.CUADRA
MANAGUA, NICARAGUA.C.A.

Sep 29, 2011 | Exercise & Fitness

2 Answers

i was wathing tv when my light started flickering then the tv turned off now it wont turn back on please help


Hello, This is a sudden high voltage, it will require opening the television to check faulty component. First check for fuses in the printed circuit board and if found replace with same current rating. Also check other component such as the power transistor, resistor, rectifier with a multimeter set at ohms range

May 20, 2010 | Televison & Video

2 Answers

RM2652 WORKS ON GAS NOT ON AC ALL FUSES OK POWER


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Unplug the fridge. Remove the cover from the circuit board, unplug the 2 wires going to the heat element and do an Ohms reading should be 35-45 Ohms. If the Ohms is good then you need a circuit board as long as you have checked the 110 volt fuse on the circuit board.
Thanks for using Fixya
Jerry

Mar 30, 2009 | Dometic RM2652 Refrigerator

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