I managed to get hold of an Infocus LP790HB which wouldn't power up.
The faulty was ridiculously easy to find. A diode had blown on the rectifier and had taken out the NTC thermistor.
I replaced the entire rectifier as the diodes were only a few pence each, put a new fuse in and fired it up. In the picture you can see the three LCD panels getting lit up and recombined in a prism. Note: This was a complete pain in the **** as the PCB was really thick making it hard to suck out all the solder with my student budget de-soldering tool.
Here's a close up:
And with 3300 lumens it practically burnt a hole in the wall 8)
Definately one for indoor shades wearers 🙂
An externally hosted image should be here but it was not working when we last tested it.
The faulty was ridiculously easy to find. A diode had blown on the rectifier and had taken out the NTC thermistor.
An externally hosted image should be here but it was not working when we last tested it.
I replaced the entire rectifier as the diodes were only a few pence each, put a new fuse in and fired it up. In the picture you can see the three LCD panels getting lit up and recombined in a prism. Note: This was a complete pain in the **** as the PCB was really thick making it hard to suck out all the solder with my student budget de-soldering tool.
An externally hosted image should be here but it was not working when we last tested it.
Here's a close up:
An externally hosted image should be here but it was not working when we last tested it.
And with 3300 lumens it practically burnt a hole in the wall 8)
An externally hosted image should be here but it was not working when we last tested it.
Definately one for indoor shades wearers 🙂