Comments on: Cracked Fuse, Capacitor, Shorted STR & Diodes Found In ONIDA Ultra Slim CRT TV

By: Sundarajan

Sundarajan — Fri, 18 Mar 2022 13:51:58 +0000

Onida ultrraslim enter key problem I check change 24c32 same ic change to tv on hight and weith size both long type no adjustment the hight or vsize memory original enter key problem I chek og romete only stanby only on no other open and no service key open 5963kw

Open

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By: Michel Seya Ndala

Michel Seya Ndala — Sat, 09 Oct 2021 08:52:49 +0000

In reply to Efijemueh Philip.

Hi Efijemueh Philip; I'm just reading what you are looking for and decided to tell you that I encountered the same problem and solved it. So Can I help you or you have done already ?

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By: Efijemueh Philip

Efijemueh Philip — Thu, 16 Sep 2021 22:03:32 +0000

In reply to Parasuraman S.

Thanks sir for your advice. I disconnected the jumper wire to the fbt and connected 100w bulb,the build light bright steadily but the voltage is still 98v on that line(b+) instead of 126v.please where should look at next.I also disolder out the 5v voltage regulator k4431 to the input of the octocopler and the standby light went off.Resolder it back in and the standby light remain steady.please am ready to learn from you sir .thanks

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By: Parasuraman S

Parasuraman S — Wed, 08 Sep 2021 15:19:36 +0000

In reply to Waleed Rishmawi.

We, electronic technicians should take all problems we face as opportunities to learn! Our progress depends on that. There is nothing to hate! All situations are alike for a technician. Attack, attack and resolve is the marching slogan for us! Many thanks for your comments, dear friend!

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By: Parasuraman S

Parasuraman S — Wed, 08 Sep 2021 15:16:45 +0000

In reply to Yogesh Panchal.

Yes, very true! Many thanks for your comments, dear Yogesh!

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By: Waleed Rishmawi

Waleed Rishmawi — Wed, 08 Sep 2021 06:37:21 +0000

yes, I hate that when it happens. you work on the tv to get it to work then end up in a password finding situaton and the child lock is on but dispite all that the TV was up and running again. thanks for sharing.

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By: Yogesh Panchal

Yogesh Panchal — Tue, 07 Sep 2021 07:52:24 +0000

Good repair! sir,
now a days repairing is challenging because manufacturers are putting Programmable IC's even PWM IC also.

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By: Parasuraman S

Parasuraman S — Mon, 06 Sep 2021 16:09:45 +0000

In reply to Efijemueh Philip.

There are many reasons for it. First check feed back circuit around opto-coupler, and if it has SE series regulator, check that too. Unless proper voltage is generated, FBT will not get switched on. Disconnect the jumper/resistor that takes B+ to FBT. Connect a 100W bulb load and check whether power supply is stable. If on/off is controlled by uController, just disconnect the control and see. If power supply is ok, Check whether is LOT is loading because of some short secondary loads like Vertical section or LOT itself is defective. Good Luck!

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By: Efijemueh Philip

Efijemueh Philip — Mon, 06 Sep 2021 07:47:23 +0000

Very nice repair work sir.I just wish if you can help me solve my own problem. Lg CRT TV with model number 21FS6RLD power led is on but TV with not start up.checked the output voltages,the b+ is 93v instead of 126v,the 14v is 8.9v and the 6.5v is showing 5.2v.one capacitor along the b+ line was bad .l replaced it,and check other caps on that line which show ERS are OK.please how can I go about it again. I really want to fix this TV myself.thanks

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By: Parasuraman S

Parasuraman S — Sat, 04 Sep 2021 08:13:03 +0000

Many thanks for your comments!

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