20 Most Recent Goodmans 257NS 20" TV Questions & Answers


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/

Goodmans 257NS... | Answered on Apr 08, 2017


Power supply board damage, check capacitors and inverter components

Goodmans 257NS... | Answered on Jul 23, 2014


Check the volumn up switch, use vacuum cleaner to clean it, else might be dust or insects inside the pcb where the volumn circuit is.

Goodmans 257NS... | Answered on Jul 23, 2014


tv goes into standby all the time if a power supply is not fine, what happens is that a power supply produces two voltages, one small one powers a standby components and bigger voltage powers a line transformer which later produces more small voltages,
then later cancels the first small voltage.

chec your power supply semi conductors like, transistors, diodes and small value resistors, on your power supply. some power supply uses a IC to oscillate a ht. so check a supply at a w/shop.

Goodmans 257NS... | Answered on Apr 21, 2014


Check and replace its tuner.

Goodmans 257NS... | Answered on Feb 19, 2013


do not attempt to repair by putting back fuse there is possibly short circuit in power boared get it checed . or email details of tv

Goodmans 257NS... | Answered on Apr 08, 2010


Try these simple trick to find out yor remote control working or not....
Point the remote control towards the Camera of a Mobile Camera phone,with the camera on. While pressing remote, we can see a light (Infra Red) coming from its IR LED through the Mobile Camera if the Remote is working.
If the problem with the component that mentioned by you, write down the Number written on that and replace it with the same by the help of a Soldering Iron.
Also see the writing near to it for finding out what the component is.... For eg. C=Capacitor, R=Resistor, TR or Q=Transistor, IC=Chip, D=Diode etc.

Goodmans 257NS... | Answered on Apr 29, 2009


next time you are moving a tv, make sure that
a tv is on a soft surface,
there is a dry joint on the card because of vibration onthe card.
take your tv to a w/shop for service.
that problem will be over. ok

Goodmans 257NS... | Answered on Apr 29, 2009


dont fear the smoke behind. firstly open your tv. get a brush and clean the in side,it might be other particals dropped in side.
you are able to see where the smoke is coming from.
a qualified tech will solve that without wasting time on it.

Goodmans 257NS... | Answered on Apr 29, 2009


what you are trying to find is a frequency of the power supply, in my country we use 50Hz
but for you turn your tv at the back it is written on the cover of the tv.
that will help what you need. ok

Goodmans 257NS... | Answered on Apr 29, 2009


there is another supply missing from your power supply, chec your components on that power supply a ht of 90volts is missing,
check all active components like transistors,diodes and resistors with very small values,
if you go through you are going to win that problem, ok.

Goodmans 257NS... | Answered on Apr 29, 2009


http://www.devicemanuals.com/company/goodmans-manuals.html
you can get connected, for your help.

Goodmans 257NS... | Answered on Apr 29, 2009


open the tv and check for dry joints on the jacks of AVS, if no dry joint is found
the ariel in put is different from AV inputs
change the AV in IC. AT THE W/SHOP

Goodmans 257NS... | Answered on Apr 25, 2009

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