Question about Philips Cineos HTS9800W System

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I have a philips cineos 42pfl9632d/79 TV. No picture but good sound can change chanels (sound) and everything else. The tv has been sluggish turning on for some time and the picture was good when it did work. Can you help? If something needs replacing ,where can I buy the modules/ parts from? regards Neville

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  • lloyd_south Mar 26, 2011


    this is a philips flat panel TV no yoke etc. solution provided not suitable for this TV thank any other solutions?


  • lloyd_south Mar 27, 2011

    Sorry do not know what a HTS9800W is. My question was about a flat panel 42PFL9632D/79
    thanks. The problem has been solved so have ordered new inverter boards.

  • lloyd_south Mar 27, 2011

    Sorry do not know what a HTS9800W is. My question was about a flat panel 42PFL9632D/79
    thanks. The problem has been solved so have ordered new inverter boards.


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It seems that the TV has some components that can be weak in value and so there is a slow start in the circuits to build up the voltages or frequency to the desired level before the circuit works perfectly.
Now this can be due to lower values in capacitors which is most possible or even a fault in the semiconductor section- weakness of IC's.
If you think that the board works well after it heats up or the circuit warms up then you will need to simulate to confirm the sections.
Hence power off the set and remove the covers. Now clean the board from dust , dirt using a air blower. use a good light to inspect the board to check if there are DRY solder joints on the board specially in the power sections. Now use a dryer warm suspected sections starting from the power side. If you can also have a FREEZE-IT spray to bring down the heat the set will then demonstate the difference between the functioning on heat. This will enable you to confirm the section. Now try and change all the suspected components after you pin point the location.
This is the easy way without any technical support.
The other is to take a circuit test, check voltages , check insufficiency to confirm.

Posted on Mar 26, 2011

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Hi,you have lost vertical deflection.
Possible causes are----

Vertical amp chip needs re soldering.--- very common !

Vertical amp chip has failed and needs replacing !

Failure of electrolytic capacitors in vert circuit

Failure of resisters that supply volts to the vertical circuit

Failure of deflection yoke ( not very common )

Hope this helps

NOTE . If you come across the two knobs that the other dude mentions let me know. I am sure that my fellow Tv techs would also be fascinated to learn of their existence.

The problem you are describing appears to be a vertical circuit problem. The most common problem has been bad solder connections on the vertical output IC. If you inspect the PC board around the vertical ic, you can sometimes see the bad connections. Or the vertical IC and the associated capacitors in the circuit can be the culprit. Average cost to repair should be around $100.00 "

Posted on Mar 25, 2011

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thank u,,/please rate it

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