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Projection tvs vertical hold - Maxent Televison & Video

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Turn tv off and look into callibrating of the tv

Posted on Oct 14, 2013


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1 Answer

Where is the vertical hold button

This set has no vertical hold control---is picture rolling left right or up down?

Mar 10, 2012 | Hitachi 57F500 57" Rear Projection...

1 Answer

I have my Wii connected to a 2004 40" Samsung HDTV (LCD, projection type) and since we used the Wii Play game ONE time, we have had some 'vertical hold type' problems with the picture, some major color...

honestly id like to help, but have not had this happen to me.

did you try readjusting the color on the TVs menu?

and what do you mean by 'vertical hold type' problems with the picture?

Jul 10, 2010 | Nintendo Wii Console

1 Answer

Picture keeps jumping

Whether you mean rolling, as in loss of vertical hold, or irregular jerks, the problem is due to a ;pwered voltage. As rear projection TVs age certain capacitors lose the ability to maintain full voltage.
You CANNOT repair this problem yourself. There are DANGEROUS high voltages in such a set - HEART ATTACK level voltages which can persist for WEEKS after the set is turned off.
You must call a trained technician for service.

Oct 10, 2009 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Our tv worked fine last night and now at first it was really dark and now it is flipping. What do I do?

The loss of brightness is probably caused by degraded high-voltage internal to the set. This can be caused by an electrical "brownout" that will correct itself.
The flipping problem is due to a degraded vertical synchronization signal. First make sure you have a strong signal - no loose antenna/cable connections, etc. Assuming you have a strong signal (i.e., no "snow"), analog TVs sometimes have a so-called "secondary control" (labelled "Vertical Hold", "VH", "Vert", etc.)located on the rear of the set. If you are lucky you may have one and be able to adjust it and regain stability.
Old sets used analog components (which age with time and are somewhat heat-sensitive) to control the vertical sync. Modern TVs use digital signal processing techniques that need no such controls.
Probably need to take the set to a repairman, if you can find one.

Aug 25, 2009 | Televison & Video

1 Answer

Vertical tearing, unABLE to conver.

you can get the service manuals for most TVs at the following link, they email them.

Jun 15, 2009 | Televison & Video

1 Answer

I have lines like vertical hold is off but can't find ajustment

Thank you to "TheScreenGuy". He replied with an answer that says the vertical sync is automatic and that I need to replace the SSB. Thanks!!!

Mar 23, 2009 | Mitsubishi VS-50605 50" Rear Projection...

1 Answer

Mitsubishi WS-48311horizontal scroll

Its not a problem you can easily fix. Many Mits TVs of the mid-90's had a PIP board in them that had dried up surface mount capacitors on them. The board would have to be either re-built or replaced at a considerable cost.


Feb 12, 2009 | RCA P56923BL 56" Rear Projection...

2 Answers

Projection tv

Vertical sync problem. This issue could be related to faulty capacitors on the PIP module, as the vertical sync runs through the PIP module. If you would like to know how to by pass the module to test if it is the PIP module let me know and will post the procedure.

Feb 20, 2008 | Mitsubishi VS-50605 50" Rear Projection...

2 Answers

No power

This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input/device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source) Hope this helps you!

Sep 14, 2007 | Mitsubishi VS-45607 45" Rear Projection...

1 Answer

RCA P52939 projection TV

Yes you are correct, no days these TV sets have an automatic vertical hoild, and no I am sorry to say, there is no adjustment for you to make. there is a problem in the PIcture in picture circuit if there is one or the sync sepaqrator circuit has a problem. most likely a bad capacitor or a bad diode. This is a solid state set and there are no user replaceable parts inside them unless you know how the circuits work and can trouble shoot printed circuit boards. You are best to call in a pro to assist you in this repair. Good Luck

Mar 23, 2007 | RCA P52939 52" Rear Projection Television

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