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Sony FD Trinitron WEGA KV-34XBR800 34" TV Questions & Answers
Standby blinks 7 times doesn't turn on
Seven blinks - High voltage shutdown. The high
voltage has exceeded 33k and the unit goes immediately into safety shutdown.
Check power supply regulation and horizontal circuits. If you wish to get more details, check this site.
http://electronicshelponline.blogspot.com/
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9/21/2013 3:12:31 PM •
Sony FD...
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Answered
on Sep 21, 2013
When I turn my KV-34XBR800 on, the picture will
Hello
Seven blinks of standby led in Sony sets denotes a High Voltage Shutdon proble. It is a self diagonosis process of the microcomputer Ic inside it, which senses the high voltage and shuts down the whole system to prevent it from further damages. The high voltage means that not the high line voltage of your househod supply, but the voltage inside the circuit board of the TV exceeds more than normal. Your tv, being 34", have a high tension voltage of 32,000VDC at the final anode of the picture tube. This voltage depends on the main regulated voltage goes into the circuit board from the power regulator system. There is a power regulator built sytem inside your TV, to regulate the voltage send to main board, which bears the Line Output Transformer [LOT], which in turn generated the above said high voltage. The normal regulated voltage going to board may be around 135VDC, to a 34" tv. Even a rise in, say, 2 voltage more than normal may cause high voltage to rise up considerably high enough to get it shut off. Soney sets are normally have STR regulated power supply system. It is very accurate and durable. The main fault comes to it is soldering trouble. The above said STR regulator may rise to as high as 90 degree centegrede when working. Repeted heating and cooling, make the soldering on its legs to get loose contacted; causing improper regulation process. Your tvs case must be so.
You just open your TV, and find out the regulator section inside it, where the AC input voltage goes into. Just pull it out and resolder all suspected points by applying a little more solder; as exact bad solder point is very difficult to locate. We in service field also does this. 90% sure that this will retify your problem.
Take proper care before opening your TV. Keep in mind that you are going to work with an electrical equipment, which have as high as 32,000VDC poins are inside it while working. Take all precautions. Keep children away from you while you works. Never allow them even stand beside you Ok.
1/2/2013 9:23:09 PM •
Sony FD...
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Answered
on Jan 02, 2013
TV shut off after watching and will not turn on until unplugged for a few hours
Unplugging will allow the set's micro or brain to try to reset so set will come on normal the next time--The model indicated (Sony xbr800) has at least 3 different latch circuits which will trigger shutdown but if shutdown the set's power light will blink a specific number of blinks like 5 blinks and keep repeating it---it is an error code to narrow where the problem is.For example recently I had one with 9 blinks (different model but same idea) On the Sony Technical site it indicated a start up problem and said to replace 3 tiny parts (total 8 bucks) and not to test the parts but just to replace all three---8 bucks later and all 3 replaced I had a working set.If no error blinks you likely have a bad/poor solder connection that when the board where it is at gets hot OPENS as opposed to shorting---just like a loose wire but a bad solder connection that has developed from heat and age----All sets including yours are not soldered by hand but in a wave motion with equipment that solders everything in one motion--sometimes the solder is too thin and with age and the board expanding and contracting when set is on and then cools off--connections can and do come loose.Food for thought?To ask or give me more information press the "make a comment button" on this page.
3/26/2012 6:02:12 PM •
Sony FD...
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Answered
on Mar 26, 2012
Can I connect laptop to
You can almost always connect a laptop to a TV, unfortunately as far as I am aware this model does not have a VGA port, meaning that you would need something extra to help, for example a "Slingbox". Worth checking if your TV does have a VGA incase I am wrong though, it is the same port as you will find on a PC that you plug your monitor cable into. If it does have one, you can just plug it in directly (assuming your laptop also has one!)
9/18/2011 5:40:24 AM •
Sony FD...
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Answered
on Sep 18, 2011
My tv will no longer turn on. It has a read
It could be expensive/uneconomical in terms of professional workshop repair/replacement parts, due to the age of the set, and the availability of suitable generic components.
Because this set is 10 years old or so, servicing by a qualified SONY technician might not be economical; if you wish to obtain a quote on the repairs to this one - the technician can assist you further in greater detail as to the root cause of the original fault(s) and the likely costs involved as well as offering a second opinion as to whether it is worth fixing or not.
Personally in terms of economy and experience I would recommend replacing the whole TV with a newer series model, with an optional extended manufacturer's warranty. People are throwing CRTs out nowadays anyway to make way for plasma/LCD/LED TVs with more advanced features. But it's up to you, and if you do decide to get this fixed for an agreed quote, it could be very expensive.
Many service centres are steering away from repairing TVs with picture tubes, and focusing more on smaller appliances, such as digital audio/computers/iphones etc.
6/5/2011 6:28:17 AM •
Sony FD...
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Answered
on Jun 05, 2011
My Trinitron's mostly fine, though
This problems u are having it is not the causes by the tv,because ur tv it is a analoge CRT tv,don't have this functions zooming in or out or the problems just causes only 8% cutting off edges of the tv pictures only.If the problem it is happening to ur analoge tv it will have no vertical hold at all.The devices u are connected to the tv and using have zoomming in or out buttons or ajustment buttons of the sizes of the picture on the screen.Used the devices remotes controls to readjust ur zooming or pictures sizes adjutment.
5/5/2011 7:34:34 PM •
Sony FD...
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Answered
on May 05, 2011
My tv screen is zoomed
- Check the TV to see if it has a ZOOM / WIDE option or control for adjusting the aspect ratio; if so, try setting it toNORMAL .
NOTES:
- If there is a SCREEN MODE button on the TV remote control, you can press this button until NORMAL is selected.
- If using a cable/satellite set-top box, DVD player or digital video recorder, check the device for aspect ratio controls and try selecting a different display option.
1/16/2011 9:39:59 PM •
Sony FD...
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Answered
on Jan 16, 2011
Trouble turning on. Red light blinks 6 times.
hi,
first of all check for any loose contact(dry soldering) in horizontal side. if not ,there will be problem with the jungle ic.(main chroma ic) or check the driver transistor and driver transformer.
also check the B+ supply voltage of the power supply. for any further assistance feel free to contact through fixya
ok
12/23/2010 6:04:30 AM •
Sony FD...
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Answered
on Dec 23, 2010
Screen gives bright red flash--sounds
That is either the tube or a short circuit video driver semiconductor.
If it is intermittant, I would go for tube and prepair to purchase a replacement TV.
Sorry
12/9/2010 2:20:54 PM •
Sony FD...
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Answered
on Dec 09, 2010
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