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Ballast for b&h 7650 lamp - Brother Office Equipment & Supplies

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Posted on Jan 02, 2017

Mr_Wizardtex
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SOURCE: dlp has no picture only flickering lamp & timer lights.

Verify color wheel is reconnected, color wheel needs to get up to speed before lamp strikes

Posted on Jun 28, 2009

Slinteriors
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SOURCE: Samsung DLP HL-R5667W lamp won't fire. Changed

Was the replacement lamp the same part number as the original as there are different arc gaps for different lamps and the wrong arc gap will cause the lamp not to light. Since the ballast is powering up the lamp should light if the baalast is matched to the correct arc gap of the lamp being used.

Posted on Nov 27, 2009

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I installed a new lamp and the tv is still blinking saying the lamp is bad. There is no picture.


its most likely the ballast which is causing the issue. The ballast is what provides the power source to light the lamp. You can get the ballast at www.tvrepairworld.com and they can provide instructions on how to replace the ballast

Mar 31, 2013 | Mitsubishi WD-73733 73" HDTV

1 Answer

I have a Sanyo plc-xt25 LCD Projector and when I plug my ac cord in, the fans turn on but no lamp comes on. I changed the lamp and still no picture. What do I do?


Every projector lamp is equipped with ballast. The problem area is ballast. Either the ballast is not getting DC supply or the lamp turn ON signal from the projector main board or the ballast is faulty. Remove the lamp. Connect the projector to the mains supply. Check the voltage at the lamp connector inside the projector without turning it ON. It should be around 65 volts A/C. (Warning: Multimeter will get damaged if the projector power is turned ON due to generation of high voltage) If you find this 65 volts then it confirms that it has DC supply & the ballast is functioning. The ballast receives the the turn ON signal from microcontroller through opto-coupler on the ballast. The ballast opto-coupler can be checked by providing external 5V DC supply between pin 3 (+ve) & 4 (-ve) in turn switches ON the lamp. If this works then there is no problem with your lamp & ballast. The problem lies with the main board. If this does not solve your problem then give me the feedback.

Aug 04, 2011 | Sanyo PLC-XT25 LCD Projector

1 Answer

Bulb will not come on . I replaced with new one & still wont come on.


Sounds like the ballast is at issue, If you have the correct lamp for your ballast. Samsungs are very critical that the lamp be matched to the ballast, often replacement lamp dealers dont take that into consideration when substituting samsung lamp numbers. Was the lamp a samsung lamp or a generic replacement?

Jul 20, 2011 | Samsung Televison & Video

1 Answer

I have a 4 ft 2 lamp flourescent system. I am changing the ballast. The existing wiring has blue / red / yellow / black & white wires. I have a new ballast (yes I confirmed at the store it is the...


The first thiing I suggest is checking the installation instructions (either included with the ballast or on-line) of the ballast you just purchased. Many fluorescent ballasts require that the lamps be wired in series - which I believe is what you had before. One lamp connects between the red & the yellow, the other connects between the yellow & the blue. Other fluorescent ballasts require that the lamps be wired in parallel - which may be what you have now (both lamps connect between the red & the blue). The installation instruction sheets should designate the appropriate wiring configuration.

That being said, just double-check one thing: Make sure the new ballast is rated for 2-lamps. Ballasts rated for 1-lamp will only include the red & the blue (no yellow). So I know you sad you already checked with the destributor, but double-check that one point.

May 15, 2011 | Electrical Supplies

1 Answer

I have a infocus IN35 that at 100 hours burnt out a bulb. Thinking that it was just a bulb problem I bought a new bulb and it lasted 20 minutes. a t.v.repair shop said its probably the ballast that is the...


It is not a common problem. Ballasts rarely need repairs. Have you reset the lamp hours to zero after installing new bulb? If, yes to confirm about ballast please ask the TV repair shop man whether previously he had repaired any DLP projector. There is lot of difference in technology of DLP projector & TV (except DLP Projection TV). The problem could be in the projector main board. The lamp lights after getting Lamp ON signal from the projector main board. As the lamp ignites the ballast sends the signal of Lamp Lit. If the projector board senses that any blower/exhaust fan or colour wheel is not running then it will send a signal to Switch OFF the lamp. If you are tech-savvy then do as follows to check about lamp & ballast. Remove 5 pin connector from the projector. Connect projector to mains supply. Get a 5V DC power supply. Connect +ve to pin 3 & -ve to pin 4 of the ballast connector from this supply. The lamp should light. If it does not light then there is problem in the ballast (if the lamp is new). To give a chance you can check it for your lamp which lasted 20 minutes. Generally ballasts are made by OSRAM. You can get the ballast from OSRAM dealer. You will need the part number for that. Take out the ballast, it is there on it.

Apr 14, 2011 | InFocus IN35 Projector

1 Answer

Samsung HLP 4663w dlp-hdtv replaced lamp and ballast, still not working. lamp/standbytemp and timer all flashing. i get no clicking on ballast, upon power up all i hear is low fan or vibration sound which...


If the capacitor on the ballast was puffed up or blown up you have to replace the lamp, ballast & SMPS at the same time. But if the ballast is not trying to fire the lamp it sounds like the color wheel is not coming up to speed. If this is the case, the set will not turn on.

Sep 22, 2010 | Samsung HLP4663W 46" Rear Projection HDTV

2 Answers

Samsung hln617w dlp tv won't turn on. Red temp


Had similar problem. Thought it was the lamp. Examined old lamp but it appeared to be good. Ordered a new one anyway. Changed the lamp but the TV screen would not come on. It would make the usual noise as it was going to come on normally but it would cycle 3 times & then turn off. The LED lights in the front panel would indicate a defective lamp. Then read about the ballast. Changed the ballast & still same problem. Tried starting the TV without the lamp installed & noticed that the color wheel did not spin. Removed old color wheel & discovered it was broken. This appears to be the cause of all of my problems. I wish I new earlier of the test-turn on the TV without the lamp being installed & check to see if the color wheel is spinning. Would have save money on the lamp & ballast.

Apr 08, 2010 | Samsung HLN617W 61" Rear Projection HDTV

2 Answers

Replaced lamp in toshiba 46hm84. still get


Hi,do you hear any strange noises? If you hear clicking or like wanting to turn on it could be the board that powers the lamp it's called the ballast.Here's the instructions to replace it :http://www.fixyourdlp.com/guides/samsung/bp47-00033a.php The ballast is the most common failure besides the lamp.The ballast is the one that displays the lamp indicator if it's not able to power bulb or if bulb is not responding.Have a blessed one!

Mar 30, 2010 | Toshiba TheaterWide 46HM84 46" Rear...

1 Answer

Samsung DLP HL-R5667W lamp won't fire. Changed lamp & ballast and still won't work. Fans are working fine, color wheel good. Lamp door switch good. When I power on, I hear ballast buzz like it's trying...


Was the replacement lamp the same part number as the original as there are different arc gaps for different lamps and the wrong arc gap will cause the lamp not to light. Since the ballast is powering up the lamp should light if the baalast is matched to the correct arc gap of the lamp being used.

Nov 27, 2009 | Samsung HLR5667W 56" Rear Projection HDTV

2 Answers

Samsung hln4365w no powerup flashing lamp & temp. can i repair myself & where do i get parts?????


There should be a lamp code sticker on the left side of the tv.bp96-00224c or bp96-oo224a are the part #'s for the 2 lamps used on this set,but you need the right one or it will blow prematurely because of 2 different ballasts used.

Aug 22, 2009 | Televison & Video

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