RCA F32450 32" TV Logo

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Posted on Nov 30, 2007
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Same issue fuse test good

I have the same issue with the tv not turning on. I did check the fuse and it tested good. Any other things i can check? How would I check the transformer and rectifier circuit as suggested by Noggin?

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Vista Electronics

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  • Master 1,694 Answers
  • Posted on Dec 01, 2007
Vista Electronics
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Joined: Sep 24, 2007
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The transformer should be replaced.....that is the fix 99% of
the time.....for F32450 / 650 , F36450 / 650..............T.

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If your Luxor 0143001 TV was working fine and suddenly made a popping sound and stopped working, it is likely that there was a power surge or some other electrical issue that caused damage to the TV's internal components.
Here are a few things you can try to troubleshoot the issue:
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  2. Check the power cable: Make sure the power cable is securely plugged into the TV and the power outlet. If the cable is loose, try unplugging it and plugging it back in to ensure a secure connection.
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If the engine does not crank when you turn the key you must diagnose what part of that system is faulty. Check battery terminals for corrosion. Clean and tighten as necessary. Are the headlights bright? If not have battery tested. Then check fuse bock for blown fuses. You can have starter tested at your local auto parts store for free in most places. That would then leave more difficult to test things like the neutral safety switch relays and the starter switch. Good luck.
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How do I test the y-sustain main board from a philips plasma tv...tv model is 42PF7220A/37 the Y-Main sustain number is LJ92-01200A....both buffers tested bad but now I dont know how to test the y-main...i...

Hi.

As such boards are cheap and fail quite easily (both the two sustain and the buffers) Philips service manuals are more oriented at board swapping then at proper testing. In this particular case the buffer boards fail very easily because of a bad soldering to IC. The short will regularly blow the main sustain board.

To start when a main sustain (e.g. Ysus) is fried the TV will go in protect mode with the led flashing in standby. One test is done disconnecting the Sus board (with power off) and restarting the TV. If TV does not go in protect, then the sustain board was good.

If there is no protection:

The first thing to check on a main sustain board is the fuse. If the fuse has blown the IC is probably fried.I believe fuse is F5004. Check for swollen capacitors that may have blown. Test the FET. That is the core of the board as it is the power amplifier.


Here the service manual:PHILIPS_SM_15540.pdf - Right Click "Save Target As"

Here a more useful service manual. Check and follow troubleshooting diagrams in manual.

Here some troubleshooting from users.

Note:if buffer board was shorted, then the main sustain board is usually faulty.

Regards.

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Have 2005 yamaha roadstar wont start no power. Batterie and fuses are good any idea what would cause this

Here are a few things to try to help you diagnois your problem.
1.Check for corrosion on battery terminals and the fuses.

2.Fuses are good - Did you check the fuse on the top of the solenoid?

3. Take a screwdriver and jump the solenoid wires to start the engine. If it starts, then your starter is good. (could be a bad solenoid - but lets check some wires first)
Your solenoid operates when you hit the start button.
Your start button won't work until you turn the on/off switch on.
Your on/off switch only has power when you turn the key on.
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Right Handlebar switch house - Test to see if you have power to on/off switch - Turn your ignition key on & off to see the testlight come on - if light comes on that means your igntion switch is good. If no light, the problem is in the igntion switch. or the main fuse to the igntion switch is bad.

If the light came on then you have power to one side of the on /off switch - test the on /off switch by turning it on and off. When switched to on you should have power to the other side of the on/off switch which is sending power to the rest of the bike which includes your starter button.
Test your start button with the test light by putting the test light on the solenoid - Turn key on - turn on/off switch on - push start button and see if the test light lights up. If the test light lights up that means that your solenoid fuse may be bad. It is located right on the top of the solenoid. If the fuse is good then that means your solenoid is bad. Replace it with a new one.
If the Test light did not come on then your starter button is not making contact and needs fixed or replaced.

So follow the power with the test light until through each component until you come to the faulty one.

NOTE: If its a blown fuse, check your wiring. You'll have to find out why the fuse blew and fix it or your fuse will just blow again. Could be a short somewhere, installing a battery wrong will blow fuses.
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