Televison & Video Logo

Related Topics:

A
Anonymous Posted on Oct 22, 2015

I have a singer crt tv 21inch.. this tv standby led allways working... tv not turning on ..front key pannel ok.. how fix ???

1 Answer

Emmanuel Sackitey

Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

New Friend:

An expert that has 1 follower.

Hot-Shot:

An expert who has answered 20 questions.

  • Expert 59 Answers
  • Posted on Oct 22, 2015
Emmanuel Sackitey
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

New Friend:

An expert that has 1 follower.

Hot-Shot:

An expert who has answered 20 questions.

Joined: Jul 24, 2013
Answers
59
Questions
1
Helped
19810
Points
125

Please change the horizontal transistor and you will have your TV power ON

5 Related Answers

Anonymous

  • 556 Answers
  • Posted on Oct 08, 2007

SOURCE: Panasonic switching to standby mode on its own

Is this a recognised symptom? yes the problem in power supply. it is due to switching oscillator& switcing output circuit probabaly capacitor & transistor. as set is very old so after power supply is ok check for horizontal output also. can it be fixed? yes it is common & not major problem

Ad
A

Anonymous

  • Posted on Jul 15, 2008

SOURCE: philips tv

I have a 32 inch phillips tv that I bought from someone else and it has a child lock code on certain channels. How do I get this code off.

Anonymous

  • 1 Answer
  • Posted on Oct 26, 2008

SOURCE: we have thomson tv 32" color crt sort length model 29df45 c s /icc20

tv power goes off when vcd / dish receiver is connected

mohan orion

  • 49 Answers
  • Posted on Aug 04, 2010

SOURCE: i have a 21inch TV (LG golden eye) which is 10

This is line output transformer problems. Before changing LOT,watch any dry soldering is there and also check vertical output ic is good or bad ?by replacement methode.
NOTE- if you know the protection pin, isolate the pin and switch on tv through 200watts bulb seriesly.then watch the symptomes.
Thanking you

vinceisaac

francoise cleofas

  • 2432 Answers
  • Posted on Aug 16, 2012

SOURCE: solutions to auto shut off lg crt tv 21

check for a defective horizontal output transistor.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

5 time blinking red led sony Trinitron 21inch crt tv kV hp21m83

Take it to your local and well recommended electronic repair store for a less frustrating and expensive fix
0helpful
1answer

Sansui hord rock 21inch eye ctv remot not working

The infrared sensor inside theTV might be faulty. Replace it. This component can be located just behind the infrared window at the front panel of the TV. You have to disassembe the TV to access it.

The component will look someshat like these.
5_9_2012_11_52_01_am.jpg5_9_2012_11_52_17_am.jpg5_9_2012_11_52_33_am.jpg
25helpful
3answers

Tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light position...

tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light
4helpful
4answers

I have a 21inch TV (LG golden eye) which is 10 years old from and now i am facing a problem that when i switched on the tv the standby LED of the tv blinks for a few seconds and then automatically off....

This is line output transformer problems. Before changing LOT,watch any dry soldering is there and also check vertical output ic is good or bad ?by replacement methode.
NOTE- if you know the protection pin, isolate the pin and switch on tv through 200watts bulb seriesly.then watch the symptomes.
Thanking you
1helpful
1answer

Sometimes tv won't turn on and standby light blinks and sometimes it works perfect

The key here is the number of blinks of the standby light. This is an internal diagnostic code. Please provvide that count and I should be able to suggest possible fixes.

Thanks,
Dan
0helpful
1answer

Sony KP-51WS510, standby led blinks 5 times

It sound like you have a bad picture tube...check your 1k circuit for correct voltage and wave form.
0helpful
1answer

Sony KP-65WS500 65 in.

Check your CRT boards on the end of the tubes for burn spots, and burnt components, check the resistors to make sure they are not shorted, burnt, and they read the correct resistance. Check the diodes to make sure they conduct in one direction only and are not shorted or open.
0helpful
1answer

Tv won't turn on?

The main power supply section is not working.
(standby supply is OK)
Common possibilities are:
- High-voltage section (flyback transformer) has failed
(happens sooner or later, about 8 years typical))
- CRT tube has failed overloading the supply
- Power surge has popped the power input circuit.
(Fuse, rectifier diodes, turn-on relay etc)
- One of a hundred of electrolytic capacitors has failed short overloading the supply. They dry out with age, are cheap to replace, but hard to find which one it is.
- Or any of many other possibilities.

In short, you need a experianced tech to troubleshoot this.
0helpful
1answer

Convergence is off

Starts up with black raster, then shuts down with LED blinking 4 times
This is the micro telling you that the auto grey-scaling procedure has failed. Change resistors R909, R913 & R922 (180k, 1%) on crt base PCB. You will probably find that all these have gone high
Standby only
Check R101 (4.7ohm), TR102 (C6180) and C126 (47uF, 16V)
Tv turns on automatically. Power supply works well, +5V present but seems that CPU (7700) does not (no standby mode), no remote or control on the front of the set
After replacing CPU (TMP47C434) and crystal 1770 (4.0MHz) both control worked intermittently. Replacing transistor 7674 (BC548) solved the problem
Will not work, standby (red) LED flashing
C604 in the 12V line is bad
Int going into standby
Replace C454 a 22nF smd, located near the Frame o/p ic.
Not finding what you are looking for?

513 views

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Cindy Wells

Level 3 Expert

6688 Answers

 Grubhead
Grubhead

Level 3 Expert

5755 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...