Question about RCA HD52W56 52" Rear Projection HDTV

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Horizontal Hold My screen rolls like the old days when there was a horizontal hold button. Do modern day televisions have those? What could be causing this?

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Hi, there are no user controls in modern tv`s anymore, the geniuses have put all of that inside the IC`s and it`s done "automatically" by the IC, your horizontal sync circuit is not locking correctly which means of course that that particular IC will have to be replaced, your going to need a tv tech for that repair, BMW Rider

Posted on Jan 09, 2008

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1 Answer

Picture is rolling


In the old days there was a control at the back of every tv labelled "vertical hold" that needed adjustment when the picture rolled. As tv sets became better that control was at first moved inside the cabinet and then finally deleted.

The vertical hold controlled the amount of synchronising signal (that is extracted from the signal received from the antenna) reached the frame oscillator. Today's electronics are so stable the vertical and horizontal synchronisation is automatic so while sometimes a rolling picture can be caused by a bad signal it almost invariably caused by an internal electronic fault needing the attention of an engineer.

Oct 19, 2017 | Televison & Video

1 Answer

RCA 20F514TD has lost horizontal hold. How can I adjust this? I have found no button or menu option discussed in the manual or by searching.


Horizontal rolling is the fault to your TV I assumes. It is a circuit fault. It can't be adjusted by customer controls. Contact any experienced service technician.

Nov 26, 2012 | RCA Televison & Video

1 Answer

The horizontal hold


If model number correct (the one posted here) set does not have a horizontal (rolls left to right) or a vertical (rolls top to bottom) control.

Verify model and brand so I may offer some suggestions

Mar 22, 2012 | Mitsubishi VS-5075 50" Rear Projection...

1 Answer

Horizontal hold picture is rolling


Possible fault in the SYNC section and it can be due a lot of reasons.
1. the loss of feedback from the flyback transformer( EHT) cannot produce the correct sync.
2. Failure of the deflection circuit- failure of the IC.
3. Failure of related components in this section, crystals, capacitors.
4. need to use an oscilloscope to trace the horizontal/vertical pulses to locate the fault-- must have a clear idea of the circuit.
Good day

Aug 23, 2011 | Sony Televison & Video

1 Answer

Horizontal hold needs an ajustment


Hello
Horizontal rolling is your problem I thinks. In modern TVs there is no horizontal hold control like they wer in old one. All the adjustments are digital, that is related to a very accurate crystal oscillator frequency, and its cound downs. Therefore if your TV is not so old, its main Ic may be faulty, or horizontal synchronisation pulse does not reach the appropriate pin of that Ic. First check it, and if it is ok, replace the Ic.

Oct 18, 2010 | Durabrand DU1301 TV

1 Answer

Sony KV-27S10


is it vertical problem or retrace lines can you tell

Aug 06, 2008 | Sony KV-27S10 27" TV

1 Answer

Rolling display image


You will need to take your monitor in for repair or buy a new one. I could get into the specifics about WHAT exactly causes this type of failure but bottom line is the same.

Feb 11, 2008 | Apple Studio Display 17" CRT Monitor

2 Answers

Horizontal roll on mitusbishi 35" tv


is this a horizontal black line going up or down? if yes, this sympton is caused by a trouble in the integrated circuit or in the vertical oscillator circuit. this symptons has 2 variations. one is the intermittent rolling of the picture. this referred to as the "loose vertical hold" the other variations is the continuous upward or downward rolling of the picture

Jan 15, 2007 | Mitsubishi CS-36509 TV

1 Answer

Picture has a horizontal row


this symptom is caused by a trouble in the integrated circuit of in the vertical oscillator circuit. try to look if your tv has a vertical hold control at the back or inside, if it does not have, u have a problem in the vertical oscillator circuit. by the way, its not the horizontal that u should concentrate into, its the vertical. coz this is a vertical sync problem.

Jan 12, 2007 | Konka K2001UM TV

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