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I need a schematic for a orion tv model# 1934, board #tma525a

The problem is I have a horizonal line; No vertical deflection.
I have already replaced the vertical output device and no change.

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5 Suggested Answers

Dutchman
  • 3 Answers

SOURCE: 20 inch T.V.

I have had past experience some years ago with new or fairly new TVs which had vertical deflection failure. I suggest Checking all coupling capacitors on the circuit board around the vertical deflection circuits. One way to check is to turn the set on and slightly warp the circuit board and see if the deflection restores. I have found bad solder joins in several sets which lost the Vert. deflection and was simply repaired by re soldering the connections.

Posted on Sep 01, 2006

MikeNJ1964
  • 398 Answers

SOURCE: tv cuts off 10 seconds after switch on and destroying vertical output ic

If the main IC is not putting out a vertical drive signal then the vertical output will not do anything and therefore will not be damaged. What exactly do you mean by the set "literally eats deflection IC's"? What is the number on the vertical output IC? I will bet that your pump-up cap or pump-up diode is defective.

Posted on Jul 05, 2007

  • 236 Answers

SOURCE: orion TV 1934

You might try substituting a new fuse. Be sure the replacement has the same rating. You may have a short in your power supply and depending on the type of supply the supply may not start up if it has overload protection. Stargazer

Posted on Aug 10, 2007

  • 579 Answers

SOURCE: SANYO AVM-3289G no vertical deflection

It isn't a transistor, It will be an I.C. with a part number that probably starts with an LA_ _ _ _ . It will be on a heat sink and be in the vicinity of the connector going up to the yoke. Try replacing that. But first, check all the electrolytic caps around it for testing dry (sorry - takes a special meter to do it in circuit) or just replace them. May have lost power to the I.C. as well. Look the I.C. up in the free NTE crossreference at nte.com get a diagram of its pinout to find what pins the power and outputs are on.

Posted on Dec 31, 2007

Shuttle83
  • 1139 Answers

SOURCE: orion 1934 19 " tv

Hello anglersquest,

It is usually located near the power supply section. unplug the TV, open the back of the TV and look for a small glass cylinder with two metallic ends. This will be the fuse, now to check it do a visual inspection and you should see a clear cylinder with no internal dark smuges (good) has smudges (bad). Then if you have an ohmmeter set it to the 1xR setting and measure the fuse ends it should read 0 ohms if the fuse is good and no reading if the fuse is bad.

I hope this helps

Thank you,

Shuttle83

Posted on Aug 23, 2008

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Nov 2011 - Comment
Have similar problem on a Panasonic Tau model CT-27SL15.
It's a 27" CRT TV manufactured around 2005.

Other posts / solutions on this problem say possibly a capacitor going bad in the vertical circuitry / near the vertical IC / vertical blanking circuitry. Telephone call to a TV repair person mentioned something similar - "possibly a bad capacitor in the vertical circuitry".
Found a service manual online w/schematics and board layouts.
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http://dl.dropbox.com/u/35219914/PANASONIC%20CT27SL15.pdf
See pg 25 (of 42) - Deflection Schematic Diagram (Main PCB)
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Hello eatkinson,

This denotes a problem with the vertical deflection circuit. This is more then likely the result of the vertical coupling capacitor failing. You will need the schematic diagram of the TV to find the capacitor in question. it is located between the vertical output stage and the vertical deflection winding of the yoke transformer. In addition check the continuity of the vertical winding of the yoke transformer this can cause the same problem. In any event the problem is that the vertical deflection signal is not getting to the yoke transformer or the yoke transformer is malfunctioning.

I hope this helps,

Thank you,

Shuttle83

http://www.electron-age-technologies-llc.com

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that is because you have a defective vertical deflection circuit, check all the caps and if that does not solve the problem replace the vertical output ic

good luck

caypianan@yahoo.com

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Hi,
Get service manual / schematics from HERE and find why vertical uotput IC is blown in your TV.
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Hello Falken94,

Your TV is losing what is called vertical deflection. This might be caused by the vertical coupling capacitor going bad, or by the vertical deflection coil on the yoke transformer going bad. In any case there is not enough vertical deflection signal getting for the vertical output section of your TV to the vertical coils on the yoke transformer. I would suggest that you get this looked at by a qualified TV technician, due to the nature of this problem.

I hope this helps,
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Shuttle83

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Hello mel2003,

This problem is caused by the loss of vertical deflection. Either the vertical output section of your TV or the vertical coupling capacitor has completely failed. In any event you will have to have a TV technician fix this set, BTW I hope you have not been playing the TV with the line on the screen this will burn the TV screen.

I hope this helps
Thank you,
Shuttle83

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I need a schematic for orion tv1934 board# tma525a

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