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Smps voltage chek - Televison & Video

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For to do this, you must use DVOM( Digital Voltmeter). You must sure with this, and have a wiring diagram from your DVD, otherwise will be very difficult to do it.
Contacts your supplier manufacturer via ONLINE chat, and get the service manual from them and execute.
God bless you

Posted on Jul 24, 2013

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Posted on Jan 02, 2017

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My compaq power led blinks3 times but nothing happens


In most cases the standby light might blink with different rapidity to indicate a fault relevant to the processor. It is possible that most of these indicate that there are errors in the processing section . Since there is a possible short or leak in the circuit the output driver section can take in huge current to trip the SMPS or from advice from the micro processor. Remove the power plugs and make sure that high voltage sections are discharged of the potential stored in capacitors. Look for visible signs of leak or of busted capacitors. Look for bulged capacitors or damaged components- burnt or busted. Use a multimeter to check the continuity or shorting in components, if so detach from circuit and test . If the voltage builds up and the set power ON and then shuts up then the suspected section must be checked in detail.

The processor must have the +5 voltage to the function properly , the +B and secondary voltages also must be checked to infer the fault. Trace with caution and in running through the signal path , circuit trail.

Chek the power in the SMPS section, check with the tips in the link below:

http://www.fixya.com/support/r5826301-working_switch_mode_power_supplies

Jul 19, 2011 | Computers & Internet

1 Answer

Power problem


*check u r electricity line 110-220V
*chek u r DC Adaptor power code
*check u r Adaptor out put voltage 12V
*check u r DC shocket pin
*check u r mother board power section
*take multimeeter then select dc range then chek dc out put voltage
*then chek main fuse and diode

Jun 20, 2011 | Computers & Internet

1 Answer

When power on SMPS is totally dead chek the fuse; fuse is ok switching transistor also ok pls help


If power out of the SMPS is the issue then a short on the secondary side can also be the issue in which the optocoupler can shut off the feed to the SM driver.
So if your voltage is present at the SM driver and the oscillation of the invertor chopper is good, check on Sm transformer for fault or the secondary ccirrcuit may have short.
If oscillatiion is not present , check and change the Oscillator IC.There are feedback loops into the circuit and the diode/capacitor can also be faulty.

Aug 31, 2010 | Health & Beauty

1 Answer

Power not coming


smps & logic card problem.it is mejor or minor problem.so you can chek smps if see the spms ok then you chek logic card.

Jul 03, 2010 | LG L1730S 17" LCD Monitor

1 Answer

Akai 25'' TV no power from SMPS. voltage available up to filter capacitor. No smps output. smps power transistor ok. Please responce nagarajak60@yahoo.com


try to check its high voltage section for axed HOT or flyback. Also check its regulator. Maybe start up resistor or check the chopper circuit. You should at least have an standby voltage on the secondary side.

Oct 28, 2009 | Televison & Video

1 Answer

No display on monitor and hard drive no start


chek the SMPS output voltages
if it is low replace it
remove RAM, clean RAM by using a rubber at RAM contacts, replace RAM
disconnect the hard disk and switch on computer, if it has display, problem is due to hard disk or smps
reset BIOS settings

Aug 22, 2009 | Computers & Internet

1 Answer

Disply problem


CHEK POINTS
1. Does your fan spins
YES:- Go to 2. No:- replace S.M.P.S.
2. Do you get any beep noise
Yes :- remove and fit Ram No:- go to 3

3. Does your processor fan spins & stops after while
Yes :- Your Processor might damage No:- go to 4

4. Do you got spindle voice of your hard disk & fan spins & stops after while
Yes:- Please take out motherboard from chassis & chek
No:- remove C-mos battery for 1 hour & fix again & check

Mar 14, 2009 | AOpen Computers & Internet

2 Answers

Samsung 953BW monitor alwyas goes to blank screen


first u will check the signal cable then check crt base [ if lot is arcking ok] replace crt base check filament volt,g2 volt,g1 vot .....etc,then u r chek 5v reg ic in supply out on smps,eprom chip and check H OUT transistor base voltage u r problem not solved about this information pls ask again to me may i help u.......

May 16, 2008 | Computers & Internet

1 Answer

Board problems


chek whether the connections from the smps are right and chek whether the cables connected to the board are intact.. the smps may be incompatible with your board or will give it low power so that it cannot start.. check whether the mother board is deviod of all metal contacts and chek whether u've secured the board to the cabinet using the plastic jumpers..

Mar 12, 2008 | Computers & Internet

1 Answer

Dot station 2300 does't start


if your smps working properly in another pc your motherboard is faulty. you have repair it. but beofre this you should chek power cable or your power point.

Dec 27, 2007 | HP Compaq Presario SR1720NX (EL435AA) PC...

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