Question about Sampo AlphaScan 411 Monitor

2 Answers

Please help me.

Hi ,good day...can you help about the problem in a "sampo monitor alpha scan 411" the problem is,the monitor has a power,,but there is no display,the output has a black screen.and no high voltage in the monitor screen f i touch it..what is the possible problem on it..can you help me to troubleshoot that problem?what are the parts i need to check on the board in monitor..please help me...

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

Checked the horizontal output,a big transistor near the flyback trnsformer, if it is shorted replace it,,,,

Posted on Feb 16, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Check the B+ about 115vdc.Check collector voltage of horizontal output transistor.If there is voltage over 115vdc from B+ and H-out collector voltage, there should be little light produce on the screen.If not , measure the supply voltage of the heater-from CRT.If there is voltage supply at least 4vdc, then check the switching transistor near flyback. FET or MOSFET transistor for shortage or no supply in triggering gate terminal lead.If not resoldering the IC in the CRT board or any other probable parts .The last I think, check the resistance of the heater CRT pins.If no resistance reading , then your crt tube is deffective. The last is the so-called jungle IC that many video problems comes out.Try to resolder the IC pins.Check the transistor that surrounds the IC. Sometimes If test the transistor , there is no shortage and no leakage, but it don't oscillate. Therefore no video display.

Posted on May 11, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Manuel for alpha sports kaliber rs scooter

Hi Nemarcp, for more information about your question please visit the website below. Good luck and have a nice day.

Feb 01, 2012 | AlphaSports Motorcycles

1 Answer

Do alpha work with casio ctk-411 and how and do i connect

The Alpha MUST tie to a computer to do the recording. Audio lines COULD go from the keyboard to the inputs of the Alpha to the Alpha to be recorded on the computer.

Aug 11, 2011 | Lexicon Alpha Personal Recording Studio

1 Answer

The sampo alphascan 411 has not picture the screen is black. Turns on but no picture.

Open it up and look at the capacitors. The round "tin can" looking components. If the tops appear bulged, then replacing them may help. Check out the YouTube video... and web site...

Good Luck!

May 11, 2010 | Sampo AlphaScan 411 Monitor

1 Answer

Need user manual for Sampo 15'' lcd monitor - PD-70FA-16T

Hi, Anita.

Here's a link to Softpedia's Sampo Driver pack:

Select the smaller icon "Download".

Hope this helps.

Aug 03, 2009 | Sampo Computers & Internet

1 Answer

Need display driver for sampo P7011MS

Aug 02, 2009 | Sampo P7011M (Silver) 17 in. Flat Panel...

1 Answer

Sampo LME-17S1 TV/Monitor w/RC-235B Remote-V-Chip - No Code

Master V chip over ride code is 8,4,8,4,100 (use the 100 button not 1,0,0) you should be good to go!

May 23, 2009 | Sampo LME-17S1 Television

2 Answers

Sampo Flat Screen Black unless unplug and plug back in

i had the same problem now my monitor wont even turn on if i do that the power light just keeps blinking maybe its a sign of a dying monitor

Jan 16, 2009 | Sampo PD-70 15" Flat Panel LCD Monitor

2 Answers

I have good Power supply board for your Sampo 42S4 tv,

do you know if your power supply board will work for the Sampo 42S6?

If so, I am interested.

Sep 13, 2008 | Sampo PME-42S6 42 in. HD-Ready Plasma...

1 Answer

Sampo Monitor warranty

Warranty contact information is here:

Sep 09, 2008 | Sampo Computers & Internet

1 Answer

Sampo PME - S7: Screen is blurry when using as monitor....but looks good when i play a movie on the pc

could you give more info?? how are you getting the signal out of the computer? have you tried other computers on the same monitor. could be the video out of the comp. do you have another source for the monitor you can use??

Jul 31, 2008 | Sampo PME-42S6 42 in. HD-Ready Plasma...

Not finding what you are looking for?
Sampo AlphaScan 411 Monitor Logo

183 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sampo Computers & Internet Experts

Paul Bade

Level 3 Expert

1587 Answers

michael galang

Level 2 Expert

138 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a Sampo Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides