Question about Philips 23PF5320 23 in. HD-Ready LCD Television

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Power supply problem busted fuse

Checked power supply board,found out one ic deffective try to look for the ic in electronic stores but was not available ic no. is pl0nk80zfp. please i need help thanks and regards.

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  • mfishing2 Dec 24, 2007

    television will not come on when power button is pushed. Unit acts dead.

  • Anonymous Mar 13, 2014

    power supply regulator ic deffective

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Hello, in most of the new LCD and Plasma TV-s there are special IC-s you can not find in regular stores. Only way to solve this is to contact the Philips Service and order the IC. In most cases the only available items are the complete boards. If you need more info please advice.

Posted on Apr 22, 2007

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Posted on Jan 02, 2017

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Caught on fire


Its a major repair.Expected that the fuse is busted and others parts of pawer supply is deffective like the regulator transistor,diode,resistor and capacitor.If you try to replace all deffective parts,replace it with the same value of parts replacement.

Jul 12, 2011 | Zenith B32A24Z 32" TV

1 Answer

TV won't turn on. Is there a fuse that needs replacing?


Good day!

When the TV is not turning ON it doesn't mean that there's a busted fuse inside although it have a possibility.There are a lot of causes to be considered.Like shorted transistors,leak capacitors open resistors and shorted diode.

Follow this D.I.Y procedures to find the exact problem of your TV.
  1. Remove the back cover of your TV.
  2. After that,find the power supply board.
  3. If you already found the power supply,plug-in your TV and power it ON.Check the input voltage of it,using multimeter (AC range).If the power supply have no input voltage the problem could be the power cord.Replace it.
  4. If the power supply have the input voltage,try to test the output voltage if have 5vdc for the system and logic supply,12vdc for the sounds and 24vdc for the back-light inverter.Use your multimeter tester (DC range) to test that.
  5. If the power supply have a voltage outputs such as 5vdc,12vdc and 24vdc and the problem is still there.The problem could be the main board.Replace it with the same type and model # because the main board is no very difficult to fix and its very sensitive.
  6. If the power supply have no output voltage or the voltage is too low,just ignore the step # 5 because the problem is not on the main board,its on the power supply board.
Check the following to fix the power supply board:
  • Fuse: Check the fuse if it is busted or blown.
  • Power transistor (regulator): Check the regulator if it is shorted or leak.
  • Resistor: Check the resistors specially the one that have a low resistance that near the power regulator.
  • Capacitor: Also check the capacitors if it is leak or bulging top.
NOTE: If you found any defective parts or components that mention above replace it with the same value,type and ratings.


Thank you and good luck.Please don't forget to vote and rate my answer.

May 08, 2011 | Televison & Video

2 Answers

The tv will not power up, nothing happens when i press the power button


Hello
The power supply section inside your TV is not working. It may be due to a blown fuse, or its inverter secion itself. You have to open your TV to detect and repair the fault. If you are aware in electronics, open it, and check the fuse first. If it is found blown up, replace a new one with same rating. Do not use an other rated fuse, as it may damage more components, if there is a fault inside the circuit section of the power inverter board. If the newly inserted fuse also blow out, as you switch ON the TV, never put any fuse there, and it must be due to some fault to that section, should be checked well. Without any reason, a fuse won't blow up you see. We must find out the reason for that and rectfy it before replacing an other fuse in place. Normally, rectifer diodes, inverter device, a transistor or an STR, whatever may be the case, should check with its schematic diagram, and replace them. Whe power reguator [inverter] side get a fault, it will cause more component in that section to be out of order. So you have to check each component on that section before replacing and switch ON the TV.
If you have a sound knoledge and measuring instruments with you, you can do it by yoursef at home. If not, get it repaired with an experienced service technician. OK.

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1 Answer

Got a NBN car subwoofer with amplifier. the bass often stops working. wat should i do? thx


what are you talking about unit01, you talk too much but isn't revealing the main prob. it's the Electronic board that is deffective that's why it's turned on, but no sound, because the board of the sub is not operating anymore, maybe a busted capacitor or IC. that's why. ok? don't listen to unit01, it's a non sense talks lol

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Ilectrical problem


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Toshiba 42h81 rptv


Pull chassis--check all fuses,esp, F850 & F851.They protect
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supply,on edge of the main board.On the signal board,locate the
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edge of the signal board and the IC's---locate two grey jumper wires
and some hard wire jumpers = solder them all,if you don't,the fuse may blow again.Next,replace IC's with Hitachi up-grade part
# STK394-160E....Reassemble...power on.....touch magic focus
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Oct 28, 2007 | Toshiba 42H81 42" Rear Projection...

2 Answers

Blinking power light


Our 61H71 just did the same thing! I have found on another site where a fuse on the Convergence board was replaced as a fix for this issue...however, fuses are usually symptoms not causes...it is very difficult to find availabe information on this issue...it may be time to call a professional...Good Luck!

Nov 18, 2006 | Toshiba 61HX70 61" Rear Projection...

1 Answer

BUSTED FUSE


A lot of times you can buy replacement fuses at a local electronic or hardware store and they're easy to replace. Check the fuse. If it is blown, it will be obvious and make sure that the set is unplugged before replacing it. If it blows again, or if it is not blown, your problem is probably in the 'X' volt regulator and you will need professional help with the repairs.

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