SAMSUNG DLP TV HL-S5687W. Picture and sound disappears after TV has been on for an hour or so. The lamp is still on. The fan is not functional even when lamp is hot. I switch to another channel and the picture and sound is active.
This does not but does in one way make some sense(I had to read your question a few times).
The key here is the fan does not turn on-----If any of the fans (lamp or others to a lesser degree do not come on: The lamp fan must come on or in a short amount of time--it should turn the set off and some have a lamp light and a temp light----
The set monitors the temperature of the lamp especially when set is turned off---it will not turn the lamp off until it cools to a specific temperature is reached----hence if set on for while and just unplugged which will kill the power to the lamp fan the lamp or even ballast that drives the lamp can be damaged.
Voltage to the fan can be measured and it must come on when set is powered up-----issue could be either fan is bad or no voltage is reaching it===most 2 wire fans will have the voltage marked on them--24vdc equals 24 volts Direct Current etc.
If a fan NEVER COMES ON (especially the large lamp fan) sooner or later something is going to get melted or fry.
Your description is a very good one but the issue is a bit rare (fan dead).
I would if there first check for voltage at the fan when set is turned on---if its there but fan not running the fan is bad.
Seen a few where dirt on the fan or even moving the fan blades made the fan kick on but by then you KNOW it is bad.
Let me know if you have questions or what you find.
SOURCE: my samsung dlp tv hl-s5687w
I had the exact same problem with my TV turning off for no reason. If those two lights are blinking in the front it means your TV thinks the lamp door is open and shuts down. In my case i had to open the door and adjust the spring lever because it was not making good enough contact.
Hope that helps.
SOURCE: I have a Samsung HLR6168W DLP that intermittently
its the problem of inner lamp that is near to end of its life and it needs replacement.and what the thing is happening is the indication of faulty lamp.
how to replace the colour
wheel with diagram and procedure
http://www.jangro.com/a/2006/07/24/samsung-dlp-replace-color-wheel/
how to replace the lamp in 5 minutes with diagram and procedure
http://www.jangro.com/a/2006/08/03/how-to-change-your-samsung-dlp-lamp-in-5-minutes
how to replace the
ballast with diagram and procedure
http://www.consumermeet.com/entry/samsung-dlp-ballast.html
SOURCE: Samsung 50" DLP - Lamp Light Blinking after bulb replacement
Listen closely. The tv should make a high pitch whine as it turns on. If it does wait and see if it tries this a few times. If yes then check the bulb, I have seen cases where the lamp shoves the power connector back into the set. If the tv starts with a grown or heavy vibration noise, then your color wheel may have broken and needs replaced.
SOURCE: no picture good sound good lamp can change channel
I have the exact same TV and have had the exact same problem. I talked to a TV repairman who said it has to be my deflection board. I just found this out today so I am looking all over the web for a deflection board. I hope this helps! Tyson
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