Question about Optimus 16-175 2.2 in. Television

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3 transistors are shorted, 1H43SF , the LCD T.V. brand is GANZKLAR, the unit is (dead set) , is the power supply of the TV set is affected by the 3 shorted transistors .

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It wont turn on at all


Good day to mam wendy311!!!!


If you TV is totally dead set and no red light or green light on the front...


if that so the problem could be cause of dead set power power supply board...

You have 3 choices its either repair it on your own or took it to the technician or buy a new set of power supply board..

But for me I suggest to buy a new power supply board because if you took it to the technician cost of repair is almost or higher depends on the bad parts than the new power supply board...

But before you buy a new PSU please check this simple and common parts that usually cause of dead power supply board..
  1. Transistor----Check if shorted
  2. Capacitors----Check if bulged or leak.
  3. Resistors----Check if open or change value..
  4. Fuses---------Check if busted..

I hope this solution will be helpful..

Thanks for using fixya...

Aug 12, 2011 | Apex Digital LD4088 LCD TV

2 Answers

My 32lg30 was shorted out during a lightining strike in a storm the other night. plug it in, and press power, and now nothing works. reset button or replaceable internal fuse? I am tech savvy so I can do...


Hi,

Here are some basic steps that will help you fixing the problem.

I'm assuming that your unit is dead set without an standby LED light and your outlet is live.1.Power cord - check the cord it might be opened (no continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse- sometimes the fuse fail because of the power surge, replacing with new one will cure the problem, If this is the case I would advice you to use surge protector/AVR (Automatic Voltage Regulator). However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and still the unit didn't power up then you have an open parts on the power supply.

4.If you see that the fuse is intact , don't attempt to touch anything because there some fatalcomponents stored electricity enough to hurt you with a simple mistake only. I would advice you to look for a professional to troubleshoot the power supply. If you want to repair it yourself make sure that you have necessary tools and test instrument. First check bad solder joints(re-solder all cold solder), leaky electrolytic capacitor(sometimes it has bulged at the top but not all, you better have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat sink), open fusible resistor (caused by shorted regulator Transistor/IC), shorted zener diode.

You may also replace the entire power supply board, click this LINK.



Hope I helped you.

Thanks for using fixya.



Jdvillanueva

Jun 04, 2011 | LG 32LG30 32 in. LCD HDTV

2 Answers

Tv is not getting any power


Hi ruanoaaron,

Here are some basic steps that will help you fixing the problem.

I'm assuming that your unit is dead set without an standby LED light and your outlet is live.1.Power cord - check the cord it might be opened (no continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse- sometimes the fuse fail because of the power surge, replacing with new one will cure the problem, If this is the case I would advice you to use surge protector/AVR (Automatic Voltage Regulator). However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and still the unit didn't power up then you have an open parts on the power supply.

4.If you see that the fuse is intact , don't attempt to touch anything because there some fatalcomponents stored electricity enough to hurt you with a simple mistake only. I would advice you to look for a professional to troubleshoot the power supply. If you want to repair it yourself make sure that you have necessary tools and test instrument. First check bad solder joints(re-solder all cold solder), leaky electrolytic capacitor(sometimes it has bulged at the top but not all, you better have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat sink), open fusible resistor (caused by shorted regulator Transistor/IC), shorted zener diode.

You may also replaced the entire power supply board, try online like ebay.com and shojimmy.com.

Also check if your unit is under warranty before opening the back panel, it will void the warranty. Avail it because the manufacturer of your unit will fix it for free or a little charge only.

Hope I helped you.

Have a nice day!

Thanks for using fixya.

Apr 18, 2011 | Vizio VX32LHDTV10A 32 in. LCD HDTV

1 Answer

Sony kv32v15 is dead with no sounds are lights. How difficult is it to replace the power supply / power management components?


since the problem is dead set all you need is open the back cover to trouble shoot, use digital tester. check blown fuse and then power on the unit check the output voltage at power supply panel board which supply the main CRT chassis board. if no output voltage check open fusible resistor its about .1 ohm, then check shorted rectifier diode and transistor sometimes cause by voltage fluctuation. just consider also the horizontal out put transistor it might be shorted cause by over current coming from power supply.

Apr 17, 2011 | Televison & Video

1 Answer

Will not turn on


your problem is your power supply....you have to do is remove the cover find the power supply and remove it from the unit....you have a two options 1 is you buy 1 set of power supply and the other is repair that buy finding open resistor and shorted diode and transistor and also leak capacitor thank you

Mar 05, 2011 | Toymax Magnavox 37MF331D 37 in. LCD TV

1 Answer

NO POWER ON


Hi Sanchezbenig,

Here are some basic steps that will help you fixing the problem.

I'm assuming that your unit is dead set without an standby LED light and your outlet is live.1.Power cord - check the cord it might be opened (no continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse- sometimes the fuse fail because of the power surge, replacing with new one will cure the problem, If this is the case I would advice you to use surge protector/AVR (Automatic Voltage Regulator). However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and still the unit didn't power up then you have an open parts on the power supply.

4.If you see that the fuse is intact , don't attempt to touch anything because there some fatalcomponents stored electricity enough to hurt you with a simple mistake only. I would advice you to look for a professional to troubleshoot the power supply. If you want to repair it yourself make sure that you have necessary tools and test instrument. First check bad solder joints(re-solder all cold solder), leaky electrolytic capacitor(sometimes it has bulged at the top but not all, you better have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat sink), open fusible resistor (caused by shorted regulator Transistor/IC), shorted zener diode.



You may also replace the power supply board, try online like ebay.com and shojimmy.com.

Also check if your unit is under warranty before opening the back panel, it will void the warranty. Avail it because the manufacturer of your unit will fix it for free or a little charge only.

Hope I helped you.

Have a nice day!

Thanks for using fixya.

Feb 18, 2011 | Samsung LN32A330 32 in. LCD TV

2 Answers

I have no power no lights nothing will turn on when I push the power button


Hi fordtech05,

Here are some basic steps that will help you fixing the problem.

I'm assuming that your unit is dead set without an standby LED light and your outlet is live.1.Power cord - check the cord it might be opened (no continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse- sometimes the fuse fail because of the power surge, replacing with new one will cure the problem, If this is the case I would advice you to use surge protector/AVR (Automatic Voltage Regulator). However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the link http://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and still the unit didn't power up then you have an open parts on the power supply.

4.If you see that the fuse is intact , don't attempt to touch anything because there some fatal components stored electricity enough to hurt you with a simple mistake only. I would advice you to look for a professional to troubleshoot the power supply. If you want to repair it yourself make sure that you have necessary tools and test instrument. First check bad solder joints(re-solder all cold solder), leaky electrolytic capacitor(sometimes it has bulged at the top but not all, you better have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat sink), open fusible resistor (caused by shorted regulator Transistor/IC), shorted zener diode.

Also check if your unit is under warranty before opening the back panel, it will void the warranty. Avail it because the manufacturer of your unit will fix it for free or a little charge only.

Hope I helped you.

Have a nice day!
Thanks for using fixya

Feb 17, 2011 | Sony Bravia KDL-40S4100 40 in. LCD TV

1 Answer

I have a Protron 32 in LCD TV. There is no power....


First make sure it does have at least red indicator on the front panel, if not, the standby +5vdc is not working, coomon problem with this monitor is dead power supply due to bad caps, shorted transistor and Zener Diode in the standby power supply.
http://s807.photobucket.com/albums/yy352/budm/Protron%20PLTV%203250/

Power supply; http://www.google.com/products?rlz=1T4GGIH_enUS282US283&q=pltv+3250+power+supply&um=1&ie=UTF-8&ei=hdgBTL6MJaKMNZLC1Ts&sa=X&oi=product_result_group&ct=title&resnum=1&ved=0CCQQrQQwAA

May 20, 2010 | Protron PLTV3250 32 in. LCD Television

1 Answer

No power to TV can't turn on set. Disconnected power coed and reinserted, still no power. HELP HELP


First make sure it does have at least red indicator on the front panel, if not, the standby +5vdc is not working, common problem with this monitor is dead power supply due to bad caps, shorted transistor and Zener Diode in the standby power supply.
http://s807.photobucket.com/albums/yy352/budm/Protron%20PLTV%203250/

Power supply; http://www.google.com/products?rlz=1T4GGIH_enUS282US283&q=pltv+3250+power+supply&um=1&ie=UTF-8&ei=hdgBTL6MJaKMNZLC1Ts&sa=X&oi=product_result_group&ct=title&resnum=1&ved=0CCQQrQQwAA

Feb 23, 2010 | Spectroniq PLTV3250 32 in. LCD TV

1 Answer

Sony TV KV-32v15 Dead Power Supply


you should of recived a 0.01ohm resistor it is wite and sayes sony on it.
its a flame proof resistor that needs to be the very same
look for it on the pcb test it its probly open right.
ask them to send you the right part.
regards,
daniel.

Jan 11, 2009 | Sony KV-32V16 TV

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