No Power In Hitachi TV Repaired
The complaint of this 21″ CRT Hitachi Television was no power. Once the cover was removed the first component I checked was the fuse.
The fuse was found to be opened circuit. This could mean there is a possibility some other components shorted in the circuitry.
I continued to check on the primary side of the power section and found the bridge rectifier was good!
Next I checked on the power IC and found that it was shorted. This is the reason why the fuse was blown.
When i removed the power IC and found that indeed it was exploded and cracked.
I then replaced the bad components with new one and connect a light bulb to check and make sure no more short circuit. It was indeed no more short circuit when the bulb did not light up.
Lastly the main fuse was put in and Powered On and the TV came back to life.
Conclusion- In total I found five bad components in this power supply side. In some repairs, there can be more or less bad components depending on how heavy the short circuit is. If you are a beginner and wish to learn how to repair CRT TVs you can click HERE for more information.
This article was prepared for you by Suranga Bandara who owns an Electronics shop in Anuradapura, Sri Lanka.
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Note: You may check out his previous repair article in the below link: