ViewSonic E70f 17" CRT Monitor Logo

Related Topics:

Anonymous Posted on Mar 10, 2009

Horizontal out always damage in minutes

Dear sir,
my tv daewo 29inch the horizontal output is heated and after minutes the output will damage

  • Anonymous Mar 10, 2009

    display is not show

×

1 Answer

Steve Allison

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • ViewSonic Master 5,569 Answers
  • Posted on Mar 31, 2009
Steve Allison
ViewSonic Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Jan 19, 2008
Answers
5569
Questions
4
Helped
2001284
Points
16452

Probable defective flyback (horizontal output transformer).  

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Hi sir mera Videocon TV model no. VIS14MBBF-CUT AV/TV NOT WORK AND vertical problem solution

Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result might display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.
2helpful
1answer

Sir, why does the transistor d2499 getting too hot when the tv is operating? If it is normal or not?

Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Type in this key phrase " my service table today " in the search box at the top right of the display window of the home page, to get gathered some pages which has the details of practical experiences to the author of that site.
0helpful
1answer

THE SET WILL ALWAYS TURN BUT FREQUENTLY SHUTS OFF, BUT CAN ALWAYS BE TURNED BACK ON. SOMETIMES IT WILL WORK FOR HOURS, SOMETIMES ONLY TEN MINUTES.

Sounds like loose solder terminal/s at its horizontal output, or SMPS stage circuit. Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Type in this key phrase " my service table today " in the search box at the top right of the display window of the home page, to get gathered some pages which has the details of practical experiences to the author of that site.
0helpful
1answer

Sir tv on few secend on standby coming

Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Type in this key phrase " my service table today " in the search box at the top right of the display window, to get gathered some pages which has the details of practical experiences to the author of that site.
0helpful
1answer

What seems be the problem of my aiwa 14 inch tv, thus it has something to do with tv system ic?

Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Do a search by type in the brand name of your device at its search box.
0helpful
1answer

Dear sir , I'm ram . in my kalaignar free t.v screen is bigger than display , how to adjust it.

Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result might display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.
2helpful
2answers

Hi. My AKAI CT 2985 is out of sync in horizontal & Vertical .Now plese tell me how can solve this problem?

sir pls help me. i need akai ct2985 remote control model no. i lost my remote in transit and without it i'm not able to use the tv. my mail id : [email protected] pls help. thanks & regard's. jayaram
0helpful
1answer

Sony Trinitron 29inch Color TV

The 2 blinks are an indication of over-current. This is usually because of a shorted component. The most common is the horizontal output transistor. This will be a 3-legged part attached to a heat sink close to the flyback transformer (part with red wire coming out the top). This transistor will be marked C4856 or something similar. Update this with the exact marking and I'll provide you with the full part number and approximate cost.

Dan
4helpful
5answers

Horizontal output transistor keeps failing

The horizontal output transitor is always connected to the primary winding of the flyback transformer (via collector) and also to the horizontal deflection coil via an electrolytic capacitor. The most likely suspect for damaging the transistor is the fylback transformer. In some countries there are electronic stores that test flyback transformer by winding a few turns on the ferrite core and applying a test voltage. This test will only test the secondary. The primary winding is difficult to test for turn to turn short because the resistance is quite low and you do not know the 'good' resistance.
Not finding what you are looking for?

108 views

Ask a Question

Usually answered in minutes!

Top ViewSonic Computers & Internet Experts

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Cindy Wells

Level 3 Expert

6688 Answers

Rob Hill
Rob Hill

Level 3 Expert

1480 Answers

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

Answer questions

Manuals & User Guides

Loading...