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Closed No sound tv

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jeff0928

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Go to the audio section of your TV and check the joints of Audio IC using Magnifying glass if there is a ***** on joints resolder it if the Audio IC is Heating too much its your turn to replace the Audio IC...Problem fixed.
 
sir, not all audio problems of a CRT TV are related to the audio ic or the audio ic is the culprit. it could also be the LV Supply, the av signal, the speaker, etc... it will even come to a point that it is very hard to trace the problem..yun ang tinatawag nila na "bangungot". The solution you have posted is just one of them and it is not a guarantee that it will fix the problem right away because there are alot of sections on the circuit board of your tv to be considered.

anyway thanks for sharing:happy:(y)
 
22ytech said:
sir, not all audio problems of a CRT TV are related to the audio ic or the audio ic is the culprit. it could also be the LV Supply, the av signal, the speaker, etc... it will even come to a point that it is very hard to trace the problem..yun ang tinatawag nila na "bangungot". The solution you have posted is just one of them and it is not a guarantee that it will fix the problem right away because there are alot of sections on the circuit board of your tv to be considered.

anyway thanks for sharing:happy:(y)
Click to expand...
Yes sir tama po.. For got they must check muna ung speaker using tester. And other....hehe...
 
jeff0928 said:
Yes sir tama po.. For got they must check muna ung speaker using tester. And other....hehe...
Click to expand...

Hindi naman tgla ako magaling dyan sir, experience lng skin... computer tech kc ako, medyo may alam lng sa electronics.:)

ngstop na ako sa pgkompone ng crt kapagod na kc mgtroubleshoot tsaka maglinis ng lumang tv lalo na pag yung alikabok parang bahay na ni spiderman.:LOL::ROFLMAO:
 
Pinaka una sa pag checheck ay icheck muna kung naka MUTE ang TV nyo or naka LOW volume BEFORE sa Speaker and Connection GOING to AUDIO IC.
 
How to test no sound
Check first volume
Then speaker
Then audio vcc
Then input and output of your audio if ic type
If transistor type check those transistors on audio section
This might be of help
 
clarencebilhera said:
How to test no sound
Check first volume
Then speaker
Then audio vcc
Then input and output of your audio if ic type
If transistor type check those transistors on audio section
This might be of help
Click to expand...
Sir Ano pong sira kong may boses nman Ang tv piro walang vidio. Ano po kAdalasan sira nyAn?
 
armiah13 said:
Sir Ano pong sira kong may boses nman Ang tv piro walang vidio. Ano po kAdalasan sira nyAn?
Click to expand...
On our term we call it
With power
With sound
No raster
If this is the case
First try to adjust the brightness and contrast before opening the TV set for trouble shooting if still no raster
Then open the TV set look at the cathode ray tube if there's a red light on it's neck.
Try to adjust the focus and contrast of your fbt if still persist.
If none then check your flyback transformer section
B+
Resistor most likely fusible
Capacitors leackage
These are some possibilities
Last resort cathode ray tube if there's no red light and with B+ from transformer then check your CRT.
Another possibilities video section but minimal
Hope this might be of help
 
clarencebilhera said:
On our term we call it
With power
With sound
No raster
If this is the case
First try to adjust the brightness and contrast before opening the TV set for trouble shooting if still no raster
Then open the TV set look at the cathode ray tube if there's a red light on it's neck.
Try to adjust the focus and contrast of your fbt if still persist.
If none then check your flyback transformer section
B+
Resistor most likely fusible
Capacitors leackage
These are some possibilities
Last resort cathode ray tube if there's no red light and with B+ from transformer then check your CRT.
Another possibilities video section but minimal
Hope this might be of help
Click to expand...
Yes sir malaking tolong po to salamt po sa tolong po.....
 
clarencebilhera said:
On our term we call it
With power
With sound
No raster
If this is the case
First try to adjust the brightness and contrast before opening the TV set for trouble shooting if still no raster
Then open the TV set look at the cathode ray tube if there's a red light on it's neck.
Try to adjust the focus and contrast of your fbt if still persist.
If none then check your flyback transformer section
B+
Resistor most likely fusible
Capacitors leackage
These are some possibilities
Last resort cathode ray tube if there's no red light and with B+ from transformer then check your CRT.
Another possibilities video section but minimal
Hope this might be of help
Click to expand...
Ahm onga pala sir itong resistor at capasitor sa video circuit kopoto tignan?
 
armiah13 said:
Ahm onga pala sir itong resistor at capasitor sa video circuit kopoto tignan?
Click to expand...
Stick first on flyback section check those fusible resistor and mostly electrolytic capacitors if the fbt has b+
Check also output from horizontal section going to fbt.
 
Mga Boss, panu po kaya ung sa tv namin, skyworth brand po. Galing sa ibang bansa. ATV/DTV lang sa choices po. Ikokonek sana namin sa cable, nakakasagap naman pero parang hindi un ung program ng cable po. Tas wala sound din. Thanks in advance po.
 
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