Question about Philips 25PS40S 25" TV

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Tv screen is black with snow.

I have an older model magnavox television. T.V was left on for a couple of hours. The screen went black with snow. I do have cable. It was working fine when first turned on. It is hooked up to a comcast cable box. It is not doing anything, the screen is black. When i unhook the box and hook basic cable to the television it does the same thing

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SOURCE: nothing but snow

Your explanation about a different TV receiver working OK on the same aerial connections leads me to believe you have lost the tuning in the faulty receiver...
Just "snow" with no sound is a classic response for lost tuning....
It shouldnt have lost the tuning as there is a small battery(capacitor) that holds the previous receiver channel settings when you turn the TV off. But as you have had the Receiver in the back of a truck and disconnected from the power supply for some time then this is probably the culprit....
This battery (Capacitor) may be getting old and has lost its capability of sending a minute amount of current to the tuner IC (Chip) hold your previous channel settings...So if you can retune the receiver to the output from the Dish Network Receiver you should be fine again, but if the battery is shot you need a new one....or just leave the Receiver in the standby mode for a couple of days to re-charge the battery (capacitor) up.
You will need a service technician to replace this small battery (capacitor) its a special type made just for your receiver....
Hope this helps

Posted on Nov 12, 2007

  • 476 Answers

SOURCE: we can't get the dvr/cable box to work with the tv

Assuming you have connected the DVR/Cable box with a standard co-axial antenna cable, switch on the box and go to the tuning menu on the TV.

Tuning details are in the TV manual. If you don't have the manual, download here:

When tuning is completed go through the channels to find the cable box. (Note: TV will not tune to the box if it is not switched on when tuning)

If there is still no connection, the DVR/Cable box may need connecting with a composite video cable (red / white / yellow RCA connectors), rather than just a standard co-ax cable.

The connection is at the front of the TV. There is no red connector on this TV so you will have to use an adaptor to connect both left and right (red & white) audio into the white socket. Select AV on the remote control.

Posted on Mar 12, 2008

  • 55 Answers

SOURCE: screen is black

on that tv you have to check just for circuit of high voltage - check
transistor near flyback transformer - delfo

Posted on Mar 22, 2008

  • 157 Answers

SOURCE: TV seems to be in some kind of sales demo mode

To disable the Demo mode, perform the following:

  1. Turn GA_googleFillSlot("TL-IMU-Article"); on the TV.
  2. Simultaneously hold down the Vol+ and Vol- buttons on the front of the TV. Do not use the remote control.
  3. Hold for about 6 seconds
  4. Certain model TVs may turn off, others will not. But in either case, the Demo mode should be disabled.

Posted on Nov 30, 2008

  • 35 Answers

SOURCE: What is this tv's setup code? Needed for Comcast cable box opera

are you sure that your comcast remote requires xxxxx 5 digits for the TV code ?
10054 ?

most remotes use 4 digit codes and in my book, the philips codes are:


try these
and if you are sure that the comcast remote uses 5 digit codes then try these


make sure you get the Red LED code entered Confirmation Blink after entering the code digits.

its either a double blink or a Long Solid blink

if you have 4 digit codes it will blink before can enter the 5th, so you will know


Posted on Jun 16, 2009

  • 3051 Answers

SOURCE: my tv won't go past channel 17

Please try this free Philips Flat Panel Television owners manuals, user guides & how to ... A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ... 13" LCD-TV PF7835 - Philips 20" LCD-TV Product Brochure ... 13MC3206 - Magnavox TV/DVD Combination ... - 674k - Cached

Posted on Aug 21, 2009

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The set is almost 10 years old and has always worked perfect until today. . .

It soulds as of your solder joints are getting old and starting to crack. If the screen goes completely black then I would resolder all the major solder joints on the main PC board, and if you mean that the screen goes to all snow (as if the cable went out) then I would also pull the tuner and resolder the joints inside it too. If you do not have experience soldering on small PC boards then allow a qualified tech to handle it for you. The fact that it works sometimes means that all major components are fine and the repair shouldnt cost too much.

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