InFocus Office Equipment & Supplies - Recent Questions, Troubleshooting & Support


This problem is almost never the actual fan itself failing..
The intermittent whine you hear is the result of the Mos-Fet fan driver chip which is the speed control current amplifier.
It's an 8 pin surface mount chip on the bottom of the main (lower) circuit board. This is a common failure with these projectors.
The chip is inexpensive and needs to be replaced by someone who is skilled in surface mount component technology. You can replace the fan but you will still have the same problem. Hint, the bad chip is not the one closest to the large fan connector... It's the one closest to the small fan connector and it will measure 45-60 ohm's between pins 7 and 8. the part (rns70d) is discontinued however there is a replacement that can be purchased at...

InFocus... | Answered on Mar 03, 2020


if the fans run, then ,check the lamp or lamp ballast
turn on the projector ,at the same time ,if you can hear a continuous beep beep sound (the ballast igniting the lamp)
means the lamp may be fault,and other parts is working well

I am an expert of repairing projectors for 19 years.
It is my pleasure to receive the message form you,
WhatsApp ID:+8613178867858
Skype:[email protected]
Wechat ID:+8613178867858
Email:[email protected]
Email:[email protected]
Mobile:+86 13178867858
http://www.lampdeng.com

InFocus Office... | Answered on May 31, 2019


From the infocus_lp650 manual
Table 2:
Red LED Behavior Explanation
One (1) blink The lamp won't strike after five (5)
attempts. Check the lamp and lamp door
installations for loose connections.
Two (2) blinks The lamp counter hours have exceeded
lamp life hours. Replace the lamp and
reset the lamp hours counter.
Optional Accessories Part Number
Three (3) blinks The projector has shut down the lamp.
Replace the lamp. Contact Technical Support
for repair if replacing the lamp does
not solve the problem..
Four (4) blinks The fan has failed. Replace the lamp (the
lamp module contains a fan). Contact
Technical Support for repair if replacing
the fan does not solve the problem.
Five (5) blinks The projector is overheating. Check for a
blocked air vent. Contact Technical Support
for repair if clearing the air vents
does not solve the problem.

InFocus... | Answered on May 05, 2019


Hi my name is mani.i have hyline hd 66 projector..when I turn onn it has a very transparent or light brown spot in middle of the screen it dosent blocks the image.but colors are very light in that area..what causes that problem can anyone help me with this plzzzz.i would really appreciate it.

Thanks....

InFocus LP640... | Answered on Apr 26, 2019


Tranlucent dark spot on Optoma image. Looks like something is on the lens.Off center--top to bottom. Cleaned lens, blew out case, changed bulb, still with dark spot.

InFocus LP70+... | Answered on Mar 13, 2019


top247yn offline switcher ic

InFocus... | Answered on Feb 10, 2019


Check the menu selections in the manual.

InFocus Office... | Answered on Jan 18, 2019


depends on how many times the orange light blinks also when you replaced the lamp did you do a timer reset? you can find alot of information on how to trouble shoot this www.infocus.com/support

InFocus LP70+... | Answered on Dec 17, 2018

Not finding what you are looking for?
InFocus Logo

2,584 questions posted

Ask a Question

Usually answered in minutes!

Top InFocus Office Equipment & Supplies Experts

The Knight
The Knight

Level 3 Expert

76534 Answers

Marvin
Marvin

Level 3 Expert

85239 Answers

Richard C Cohen
Richard C Cohen

Level 2 Expert

171 Answers

Are you an InFocus Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...