Question about SansuiM1315 TV

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Sansui tv sv2918

Hi i need help please,if i switch tv on only fly back line and picture small,power supply is ok.

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Replace vert IC301, C432, ( D431 & R431 should also be blown)

Posted on Nov 26, 2008

Sweetch on thr tv just one vertical line comming in center of ty screen

Posted on Jun 20, 2008

  • Ruata Ralte Sep 26, 2013

    If only one vertical line appears on the screen, this means vertical section is working, and the defected lies in the horizontal section. Check horizontal deflection coil, it may be open.

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Posted on Jan 02, 2017

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No heater for tv model no.SV2918


Check the continuity of the CRT heater [pin 1~8]. If it is found open, no need to proceed. If it has continuity, check the AC voltage there when the LOT works. Should have about 6.2VAC. If not, check all the solder terminals and series resisotr. connected to this bus. 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.

Jun 10, 2016 | Sansui Televison & Video

2 Answers

I have a 2006, 32inch magnavox tv, model #32MT3305/17, serial # YA1AD517636280, chassis date April 2006, LO1 1UAC-7638. The is green light comes on when the tv is turned on and nothing happens after that....


Horizontal deflection is not working in TV and defective Fly-back Transformer or Horizontal Output Transistor can be cause of this symptoms. TV is in safety mode so you cant get picture and sound.
Need further help, please post back.

Sep 03, 2008 | Televison & Video

1 Answer

My Sansui model hdlcd3700 has sound but no picture at the power on, the back light flashes once. my question is power supply or or inverter?


first of all you have to check the power supply. sometimes bad electrolytic capacitors on the power supply can lead to such problems. may the capacitors seems ok visually but not be good in performance. if power supply is ok then you have to go for a ne inverter board. check the video to understand how to check the power supply of lcd tv
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
http://electro-medical.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent
Testing LCD TV Power Supply BoardsSTEP BY STEP

Nov 11, 2015 | Sansui Televison & Video

1 Answer

After 5 minutes, picture and sound disappear and lines appear.


Hi,
First of all check the power supply of your tv. Here i have added a video which will help to know, how to check the power supply of the tv. If power supply is ok the the tv have problem with the mother board.As mother board is not repairable you have to go for a new one.
check the video
Testing LCD TV Power Supply BoardsSTEP BY STEP
www.electro-medical.blogspot.com

Oct 13, 2015 | Televison & Video

1 Answer

I have a sansui tv model sv2918,it doesn't play


The TV has some firmware defect. Seek tech support.
Unplug it from AC mains wall socket, and plug it again after 5 minutes. This must make it a hard reset.

May 31, 2012 | Samsung Televison & Video

2 Answers

Blank screen led light flashing on/off manual switches do not work


hi;
when your LCD TV wont start , even if you press the power button , it has a power supply failure, maybe some capacitor has bloated or changed value, try to watch this http://www.youtube.com if you know how to solder, or even disassemble the back of LCD TV. if not try to call a repair technician. thanks ,, hope this help........

Sep 10, 2011 | Samsung LN32A330 32 in. LCD TV

2 Answers

Tv takes ages to 'warm up'. parallel orange and red lines increasing and decreasing in number (a bit like a bar code to look at). sound is ok. eventually after up to half hour, the picture appears...


Try to check the power supply if there is a bulge up in the top of the capacitor or leaky capacitor if you see this capacitor replace them with the same rating, leaky capacitor has a wet mark at the bottom of the capacitor.But be sure to unplug the unit before removing the back cover of your tv, good day and best regards feel free to send feed back.

Aug 12, 2011 | Philips Televison & Video

1 Answer

When I switch tv on at button on tv I van hear the tv goes on. No Picture. If I press buttonds on the remote I can see the red light come on that indicate the remote is sending signal. Here comes the best...


Replace , front panel switches , one or more switches goes high resistance
when suppose to be open circuit , my sv2918 74cm was doing weird things
with these switches going bad

May 10, 2011 | Sansui D 27" TV275 TV

1 Answer

Hi its CRT 32" proline


first check bright and contrast controol
if not open the cover of the set,make on see if crt filment okey or not and measure it about6,3v it comes from fly back,,,then check controol grid around400v,,,,then check 180v going torgb tr on crt socket at last check fly back transformer
if all are right the problem in crt it self

Jan 07, 2011 | Pro Line Televison & Video

1 Answer

I have old type philips crt tv about 20 inch.problum is when i powered on there is no screen only black screen. i check hi tension line of fly back this very low . when i check fly back hi tension of...


You can't determine this fault by an arc checking as you described and it is not advisable in modern colur TVs, as they uses Integrated Circuit Chips, and an arc checking will surely damage it. Check the screen voltage first when set is switched on. It should be around 300 to 400vDC normally. Set your multimeter to 1000VDC range and do this check. If it ok, come to the collector of any video output transistors soldered to the picture tube base board. Check the voltage there. If it high, that is, almost equal to its supply voltage rail [usually 280VDC] the chroma should be suspected. Check the voltage at the base of the trasistor which we have checked earlier. It should be 2V to 3VDC. If this voltage is missing, means there is no video signal comes form the chroma Ic. Check for that. If this voltage is there and there is still high voltage mentioned as above, ABL circutary may go faulty. We can't give you furthermore details as it should be to cover pages. Check these and try to find out. You may be an electronic service technician we thinks. That is why we gave you this much details, because you can follow the circuit. Check it with its schematic diagram. You will find it soon, we sure.

Oct 17, 2010 | Philips Televison & Video

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