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Calcom tv chassis complaint

Iam a tv technition .i got a calcom clock tv chassis complaint.its horizontal section oscillating three times and staying on standby position. can you tell any chances on this complaint.i changed the UOC also (TDA 12135) but it is in same possition, expecting your valuable replay.thankyou

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

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Posted on Jan 02, 2017

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hardrocko
  • 1476 Answers

SOURCE: Unit power up have sound but no picture.

Check the damper diode and the protection resistor in the High Voltage circuit. Good Luck.

Posted on Jun 19, 2007

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rey jr
  • 149 Answers

SOURCE: Sanyo tv chassis 2111 Series EB5-W Dead

hi there, light flashes means a shorted parts at the power supply and mostly at the horrizontal sec,, it may need to check-up and repair., do some testing and check-up at the horrizontal section. ty

Posted on Mar 10, 2008

Rammsteins
  • 300 Answers

SOURCE: on replay black horizontal line

Hi!
Probably the video head has to be cleaned - you should give it to a local camera service center. I don't recommend using the cleaning tapes.

Hope this helps!

Tom

Posted on Jul 29, 2009

ginko
  • 19396 Answers

SOURCE: T.V. Engineer working on a LG 3000 model: When you

Before replacing the main board, the PSU should have been tested. This TVs PSU provides power on different voltages, and each voltage is controlled through a low DC control line from main board. A defective PSU may turn off and restart by itself.

In real word I repair many LCD TVs. I do not get tired of repeating that LCD TVs are very different from home computers. Repairing by simply board swapping does not work. Although this units have few parts, the working process of the TV does not allow identifying reasons of faults from symptoms (with a PC you can often tell), parts are expensive, and testing is always necessary.

In your case for example the problem is likely a faulty PSU, but a bad grounding caused by missing screw may also cause the problem. The PSU, which is likely culprit, must be tested by jumping the control lines and reading volts to main board. This is made more difficult by the fact that the TV is forcing shut down, and turning volts off continuously.

Posted on Sep 13, 2010

  • 1 Answer

SOURCE: ic used in which section of philips TV kit

tv set no sound coming.i replce sound out put ic but not hasbeen coming .i think 9370/1665 ic in side a/f out put line is gone i have a this curcuit daigarm not avilable so pl help this point

Posted on Nov 02, 2010

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1 Answer

Tv fault finding


Short circuit protection circuit operates. There should be a short circuit at its horizontal scan output section circuits. Check the horizontal output transistor for collector to emitter leak. Replace it with a new one of same number, and check. If you wish to get more details, http://electronicshelponline.blogspot.com/

Dec 22, 2013 | Sony Televison & Video

1 Answer

Standby flashing red light


Hi
you have defctive power supply section, in the power oscillation circuit!

do you know how to repair a tv? if you know i teach you how to solved it.

Dec 26, 2007 | Sony KP-53HS10 TV

1 Answer

No picture but has sound


The horizontal output and horizontal oscilator section to your TV should be troubleshooted. Your complaint sounds that, the fault is with its Line Output Transformer. Seek tech assistance.

Jun 24, 2012 | Televison & Video

1 Answer

On_Off light blinks three times but power will not come on.


Hello
Your tVs horizontal output and oscillator has some trouble with it. When the power supply gets ON, the horizontal frequency that drives the horzontal output section won't generate the horizontal frequency, that output section wont' work, the main system control microcomputer IC will sense this situation, and give shut off signal to the power supply. That is happening now with your tV.
A through checking on the main board should be done to detect this fault. you must have sound knowledge in electronics, how the TV works. Also must have all testing equipments with you including a high quality digital multimeter. Normally this fault occurs due the main chorma-video jungle IC. But before replacing it, you have to check all other components in it. Some loose soldering contacts may also make this problem.
If you have the ability and skill, Inform me. I'll assist you. OK.

Jun 27, 2011 | RCA 32F530T 32" TV

2 Answers

6 blinks and no picture. Solution said no horizontal but what does that mean?


It means you have a high voltage problem on the main board, without this no picture can be generated. This will require a tv tech to troubleshoot the problem.

Jan 04, 2011 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

I have a sony trinitron puchased 2001 after 911 standby light flashes constantly picture flashes off and on


Hello
Complete loss of horizontal oscillation and output is the trouble. To get it repaired you have to open your TV, Just look the horizontal driver transformer, a small transformer fitted on the main board very near to the line output transformer [LOT] for winding opened. If its primary winding gets opend, even though the horizontal oscillator section works, the pulses will not reach the horizontal output trnasistor, which drive the above said LOT, and the fault you describes will occur. Check the main secondary regulated supply voltage [140VDC] also. If this voltage is missing, check the reason and follo the supply rail print from the SMPS power supply reguator section.
Check the low voltage regulator IC, usually 7808 or 7812, which can be located on the main board, which supplies 8VDC or 12VDC to the ICs on the main board. Anyway, there is no horizontal output fuction in your tV. and try to find it. If you wants furthermore assistance, feel free to get me through Fixya. OK.

Jan 01, 2011 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

Sony Wega KV-34HS510 standby blinks 7 times in red


Hi and welcome to the site,

Initially, the Sony KV-34HS510 uses the DA-4 Chassis. On this chassis, 7 blinks refers to the fault "Horizontal Deflection Stopped" indicating a problem with the horizontal section. Offhand, check, replace the HOut transistor and have the FBT (flyback transformer) ring tested.

Good luck and thank you for asking.

Aug 19, 2010 | Sony FD Trinitron WEGA KV-34HS510 34" TV

1 Answer

I have a polytron tv model 21pp123. No horizontal oscillation


I have a polytron tv model 21pp123 ...whenever I turn on the power its turning off or standby.can anyone help me bout this trouble?

Jun 10, 2009 | Philips Televison & Video

1 Answer

TV Switches itself back to standby mode continuously


if your remote is ok then this is due to power supply failure in your tv. either it is loose in oscillator ckt in switching section or it has failed. if not tech person call tech to fix it. not a major problem.

Oct 07, 2007 | Televison & Video

1 Answer

Tv power problem


It sounds like you have an integrated power supply issue. This type of supply truns on the horizontal oscillator which provides excitation to the Horizontal Output stage which in turn work with the HV section of the TV the extra LV levels are supplied by this interaction. That tsss noise might be the oscillator trying to work or the startup circuit trying to work. I would check the Horizontal and HV sections for failed components.

Sep 04, 2007 | Toshiba MV13L3 13 in. TV/VCR Combo

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