Samsung HLN5065W On for 10 seconds then shuts off
Posted: Sun May 10, 2009 3:44 am
I recently got a Samsung HLN5065W for free as something is wrong with it.
I can power it on, I hear what I think is the color wheel spin up, I hear a click, then another spinup sound.
After a few seconds I can see on the screen - "DVI Check Signal Cable"
After 5 seconds the set shuts down and the Timer, Lamp and Temp lights are all blinking at the same time.
If I unplug the set for a few seconds I can do this all over again.
Before I got the set the previous owner had it with no problems until the lamp went. He ordered a new one and got a few months until now when it just quit working.
So far I've taken it apart and verified that both fans are spinning. I cleaned up any dust on the DMD heatsink and out of the fans.
From reading in these forums I thought that maybe the bulb was replaced with an OSRAM one that may have lasted a few months. I took it apart and saw that the bulb was a toshiba. Then I thought there could be a ballast/lamp mismatch so I took a look at the ballast and it is model LOC-INHB0300U and is marked toshiba on the sticker. (seems ok to me)
I tried to bake the bulb in the oven at 250 degrees to see if the bulb will start warm. No luck. I got the same results as if it were cold, On for about 5 seconds then shutdown.
I do not see any capacitors that are bulging, nor anything burnt on any of the circuit boards.
The message that is on for 5 seconds is perfectly readable.
I am leaning towards this being a bulb issue, but why it comes on for 5 seconds perfectly dosent make sense.
I am hoping someone here can point me in the right direction. I'd hate to spend 120$ on a bulb for nothing.. Seems a lot of people have issues like these so maybe someone with a little more experience can narrow it down.
Thanks for your time
I can power it on, I hear what I think is the color wheel spin up, I hear a click, then another spinup sound.
After a few seconds I can see on the screen - "DVI Check Signal Cable"
After 5 seconds the set shuts down and the Timer, Lamp and Temp lights are all blinking at the same time.
If I unplug the set for a few seconds I can do this all over again.
Before I got the set the previous owner had it with no problems until the lamp went. He ordered a new one and got a few months until now when it just quit working.
So far I've taken it apart and verified that both fans are spinning. I cleaned up any dust on the DMD heatsink and out of the fans.
From reading in these forums I thought that maybe the bulb was replaced with an OSRAM one that may have lasted a few months. I took it apart and saw that the bulb was a toshiba. Then I thought there could be a ballast/lamp mismatch so I took a look at the ballast and it is model LOC-INHB0300U and is marked toshiba on the sticker. (seems ok to me)
I tried to bake the bulb in the oven at 250 degrees to see if the bulb will start warm. No luck. I got the same results as if it were cold, On for about 5 seconds then shutdown.
I do not see any capacitors that are bulging, nor anything burnt on any of the circuit boards.
The message that is on for 5 seconds is perfectly readable.
I am leaning towards this being a bulb issue, but why it comes on for 5 seconds perfectly dosent make sense.
I am hoping someone here can point me in the right direction. I'd hate to spend 120$ on a bulb for nothing.. Seems a lot of people have issues like these so maybe someone with a little more experience can narrow it down.
Thanks for your time