The very first thing that I needed to do earlier than I began taking the projector aside was to see the way it presently ran. I plugged it in and turned it on. The followers got here on and I might hear the sound of the followers and a faint ticking sound. together with two inexperienced lights that indicated Power and Bulb. After about three seconds the bulb standing gentle began to blink, and after about 5 minutes the projector shut off and each lights turned crimson. I shut off the primary energy change the crimson lights turned off. I then repeated that course of a second and third time to make sure consistency.
I did some analysis on-line to try to discover any documentation on the projector. All I used to be capable of finding was the person guide. Reading it I discovered the part that addressed the indications: Power, Bulb, Temperature. There are three doable states for every indicator: Solid Green, which signifies Normal operation; Blinking Green, which signifies Starting up; and Solid Red, which signifies an issue.
I eliminated the highest case and accessed the primary logic board. My intent was to search out the logic sign that was telling the the board that there was an issue with the bulb.
I used my multimeter with the bottom linked to a grounding level on the projector and began measuring values of all of the wires going to the primary logic board.
I used to be fortunate to search out that every set of wires was labeled, nevertheless it was solely abbreviations. After I recorded all of the wires in every state, I made some assumptions as to what every set of wires went to.
RC – Remote management (Since i didn’t have a distant for the projector and didn’t need to purchase one I eliminated this wire and sensor)
BL – High voltage and lamp examine circuit ( This is the wire set that I lastly found out was the one I wanted to concentrate on )
LF – Bottom fan cowl sensor ( The two wires on this connector must be reduce and tied collectively if you need to have the ability to run the projector with out the fan cowl )
FF – Fan
LL – Lamp cowl sensor ( The two wires on this connector must be reduce and tied collectively if you need to have the ability to run the projector with out the lamp cowl )
Q – Temperature sensor
FN – Fan
There was additionally a set of coloured wires in a single connector that I additionally recorded, however these ended up not being wanted to change the projector.
WHEN CUTTING AND TYING THE WIRES TOGETHER MAKE SURE TO CUT A COUPLE INCHES AWAY FROM THE CONNECTOR. THE WIRES SHOULD BASICALLY BRIDGE THE CONNECTOR. DO NOT SIMPLY CUT THE WIRES OFF OF THE CONNECTOR. ON THE OTHER HAND, THE ORANGE WIRE NEEDS TO BE CUT OFF OF THE CONNECTOR.