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JVC HD61Z575 LED blinking simultaneously

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Old 01-19-2013, 07:38 PM   #1
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Default JVC HD61Z575 LED blinking simultaneously

I recently had both LEDs (Power and Lamp) blinking simultaneously. I changed the lamp (The old lamp was broken). It worked well for two weeks.

Today, when I turn on the TV, the image will come on as normal, then it shut downs to the same Power and Lamp LEDs blinking simultaneously. I re-checked the lamp - it isn't broken (Otherwise it won't come on with regular image).

Since the image comes up normal for like one minute before it shuts down, what could be the possible problem? I tried to enter system check menu but couldn't.
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Old 01-29-2013, 02:24 PM   #2
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Question Same problem JVC HD61FN97APA

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Originally Posted by internova View Post
I recently had both LEDs (Power and Lamp) blinking simultaneously. I changed the lamp (The old lamp was broken). It worked well for two weeks.

Today, when I turn on the TV, the image will come on as normal, then it shut downs to the same Power and Lamp LEDs blinking simultaneously. I re-checked the lamp - it isn't broken (Otherwise it won't come on with regular image).

Since the image comes up normal for like one minute before it shuts down, what could be the possible problem? I tried to enter system check menu but couldn't.
Starting today I'm seeing the exact same happening to my HD61FN97. Lamp is about two years old.
Would also be interested in learning possible causes.
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Old 01-29-2013, 06:48 PM   #3
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Default

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Originally Posted by travelerone View Post
Starting today I'm seeing the exact same happening to my HD61FN97. Lamp is about two years old.
Would also be interested in learning possible causes.
Is it possible that you both unfortunately went for the $35 ebay Chinese knockoff lamps? They are very unreliable, and often don't even work out of the box.

You can't tell that a lamp is good by looking at it. It's an arc lamp, there is no filament to burn out. If the arc electrodes burn short because of a leak in the high-pressure filament chamber, or a poor design, then the ballast will no longer be able to jump the gap.

In some cases when a lamp goes bad the glass electrode chamber will break open.
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Old 01-30-2013, 08:57 AM   #4
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Default Puzzled!

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Originally Posted by ChuckF. View Post
Is it possible that you both unfortunately went for the $35 ebay Chinese knockoff lamps? They are very unreliable, and often don't even work out of the box.

You can't tell that a lamp is good by looking at it. It's an arc lamp, there is no filament to burn out. If the arc electrodes burn short because of a leak in the high-pressure filament chamber, or a poor design, then the ballast will no longer be able to jump the gap.

In some cases when a lamp goes bad the glass electrode chamber will break open.
In my case the present lamp was a second one ordered over the years from discount-merchant and is said to be made by Phillips. Cost over $120.
I don't think that when I had to do my first replacement that both front panel LED's were blinking at that time.
Also if the lamp were defective, why then does the picture come on every time I power on, if only for 30 seconds or so? I am not hearing any unusual noises, like arcing for example.
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