A month ago through Ebay I bought an OHP Eiki OHP-250M with 250W AC metal-halide lamp inside. I was glad about it not so long. Yesterday I could not start it.
When I turned on my OHP, I heard a high frequency noise made by high voltage board. Inside the lamp I saw a dim blue arc but lamp had not started.
I don’t know what trouble with. May be somebody had such experience? Should ballast make a noise if lamp is faulty? May be the problem is with a ballast? Or lamp cause it.
Please help me!
When I turned on my OHP, I heard a high frequency noise made by high voltage board. Inside the lamp I saw a dim blue arc but lamp had not started.
I don’t know what trouble with. May be somebody had such experience? Should ballast make a noise if lamp is faulty? May be the problem is with a ballast? Or lamp cause it.
Please help me!
gagarin61 said:A month ago through Ebay I bought an OHP Eiki OHP-250M with 250W AC metal-halide lamp inside. I was glad about it not so long. Yesterday I could not start it.
When I turned on my OHP, I heard a high frequency noise made by high voltage board. Inside the lamp I saw a dim blue arc but lamp had not started.
I don’t know what trouble with. May be somebody had such experience? Should ballast make a noise if lamp is faulty? May be the problem is with a ballast? Or lamp cause it.
Please help me!
what type of your ballast?
give me a pic
Re: Re: Problem with OHP
I don't know its type....
My ballast consist of two boards. I will try to post here their images.
First Board:
ywh said:
what type of your ballast?
give me a pic
I don't know its type....
My ballast consist of two boards. I will try to post here their images.
First Board:
Attachments
ywh said:do you have a multimeter?
test the ends of the lamp?
DC or AC?
v?
Lamp is UMI-250PE, metal-halide 250W (early by e-mail you said that it is AC type).
I don't have a multimeter... I cannot answer your questions...
gagarin61 said:
Lamp is UMI-250PE, metal-halide 250W (early by e-mail you said that it is AC type).
I don't have a multimeter... I cannot answer your questions...
You don't have a multimeter?
How do you to do DIY?
get one pleace! it is cheaper. only 10$ in my city.
ywh said:
You don't have a multimeter?
How do you to do DIY?
get one pleace! it is cheaper. only 10$ in my city.
I don't have a multimeter... It is useless device for incompetent person...
It is simply. I did my DIY projector only from two parts. There are OHP and Infocus PowerView 820 projection panel. What is a reason I need to have a multimeter for?
Now my OHP is faulty. And I am disappointed that nobody can help me. I don't believe that nobody has the same OHP (Eiki OHP-250M or 2500M). It is not big deal to remove lamp, switch on an OHP and post an answer in this topic. I would be so appreciative.
ywh said:give me a pic of your new lamp
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I attached a photo of my poor lamp. I don't have a new one.
ywh said:simply way:
you buy my lamp,try to run it ,.
if the lamp can not work,return the lamp to me ,you lost shipping(5+5$) only.
OK?
For a start please say what kind of lamp do I need (AC/DC). Early you wrote me that my lamp and ballast are AC. But from one source I read that my ballast is DC. But I am not sure. It was japanese web page translated to English by Google.
I post here a quote:
....
Lighting device:
Fixed electrical switching ballast
...
Attachments
ywh said:where is the japanese web page ?
I can see some words, Chinese words are part of Japanese.
If you are not sure in DC or AC. yon can choose DC,
A DC lamp can be used in a AC ballast, it has 70-80% life.
Ah, you are a polyglot!
Try to translate it:
http://www.eiki.jp/ohp/ohp-2500M.htm
My lamp is marked as UMI-250PE. I found a bit information about a lamp UMI-250.
http://www1.ushio.co.jp/catalog/100e/1035.html
I don't know what is difference between UMI-250 and UMI-250PE.
gagarin61 said:A month ago through Ebay I bought an OHP Eiki OHP-250M with 250W AC metal-halide lamp inside. I was glad about it not so long. Yesterday I could not start it.
When I turned on my OHP, I heard a high frequency noise made by high voltage board. Inside the lamp I saw a dim blue arc but lamp had not started.
I don’t know what trouble with. May be somebody had such experience? Should ballast make a noise if lamp is faulty? May be the problem is with a ballast? Or lamp cause it.
Please help me!
The problem is solved. Faulty lamp caused a trouble. Today I got a new one for 70 AUD (~50 USD).
To ywh: Thank you very much! Only you had reacted and only you was trying to help...
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