Question about Philips 42FD9954 42 in. Plasma HDTV

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Power on but not busting [no eht]

The indicator light comes up and changes to green when powered but there is no light on the screen and the indicator light goes back to red.

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It measns that there is not video signal whether it is from any type of DVD player or any type of sat top box.Try to check signal cables.

Posted on Oct 23, 2007


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Posted on Jan 02, 2017


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Tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light position...

tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light

Aug 30, 2011 | Sharp 21" Multi System Stereo TV

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after 4 or 5 yrs EHT ( transformer that supplies voltage to CRT TUBE - MONITOR TUBE ) becomes weak - then 1 of the indication is ....DISPLAY WON'T COME BUT LED solution is EHT ( also called as flyback transformer ) should be replaced....... {{ few details about EHT---- its size will be around 3inch X 2inch X 2inch ---it will have 2 or 3 knobs to adjust focus , brightness ------ at bottom around 10 pins will be there ------- from EHT 1 thick red colour cable goes to CRT TUBE --------- on EHT its part number will be there }} -------- so if user is a technical person having idea about components ( resistors, transistors, diodes, etc ) , having tools like multimeter ( to check components) , soldering iron, soldering lead, flux, desoldering wig ( for removing components), etc also little experience in servicing field( very much compulsory) ----------------- then user can remove EHT from main board ---- take to electronic shop ----- buy same type EHT --------- fix to mainboard ( knobs on EHT should be adjusted according to picture --- after switching monitor --- this adjustment is very important ) ----------iam from bangalore (09986222774, ----- here EHT's price will be around Rs 250 ( US $ 6 ) & for my customers (in bangalore) i will take another Rs 500 (US $ 11) as service charge......i don't have any idea about EHT ' s price & service charge in your place.........since it is very risky job i suggest to contact monitor service engineer ------- because they are highly experienced & can fix this component very easily....

Apr 06, 2011 | SAMTRON 55V 15" CRT Monitor

2 Answers

Tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to ...

Tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light position ,please to help of rectivied this problem and send circuit diagram and IC pin configaration thanking you sir

Mar 03, 2011 | Televison & Video

1 Answer

Screen will not come on hard drive light no light checked power supply is ok

Things to check:
  1. Power led on the front of the tower, it should be solid green when on. Flashing Amber is generally an indication of a bad power supply inside the tower
  2. Power LED Solid AMBER indicates system is not finishing the power on self test (POST) and you remove all connections from the tower except power and try turning on again. If no change, remove all PCI and PCI-E cards from system, try again, no change replace motherboard.
  3. On the back of the tower are 4 diagnostic LEDs near the ps2 ports marked ABCD, after the POST, during a normal boot the will flash in several sequences and with boot is finished all 4 should be green. If they stop an a different pattern, then that indicates a failure Yellow Yellow Green Green indicate bad RAM for example
  4. If the LEDs on front and back are Green then the system appears to be booting but the monitor display is not functional

Feb 05, 2010 | Dell Dimension 4600 PC Desktop

1 Answer


You first take post( power on self test) connect power cord & disconnect signal cable you will see massage no signal check siganl cable then problem will be in cpu this problem may be solved by cleaning dust in cpu if montor shows no display then problem will in monitor open it check o/p of smps if not disolder path of eht if o/p comes then eht is faulty replace it

Oct 28, 2008 | Computers & Internet

1 Answer

No picture on my Dell 790 monitor (17

What you've got it a busted backlight inverter... need to replaced a new one or repaired it. To repaired, if you are lucky just replaced a couple of faulty capacitors in the power supply w/ built-in inverter... Good lucks, have nice day!

Oct 23, 2008 | Computers & Internet

1 Answer

Dead screen on about 5 different monitor usually happens after a power outage. The monitors still have the power light but no display but if you look closely the monitor blinks like it wants to come on. I...

If there is eht in monitor then check video section of monitor.this section is placed on crt.check video amp. ic and vga cable.check incoming wires of vga cable and components related with it.And check driver transistors of rgb.if there is no eht in monitor then change horizantal output transistor that is place onhitsink of eht. big in size.Hope is will help you.i am always here for you

Mar 25, 2008 | Computers & Internet

1 Answer

Power on but busting [no eht]

could be a y-sustain board, av board or power supply board. i would think y-sustain if i had to guess

Oct 24, 2006 | Philips 42FD9954 42 in. Plasma HDTV

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