PG-M25XE (serv.man38). Intermittent start-up shut down (locks up) - Sharp Projector Technical Bulletin (repair manual). Page 8

LV064

Sharp Electronics (UK) Ltd., Technical Services Group

If COM Port number is over 16, Stop MACRO and Tera Term Pro.
Then disconnect the USB cable, and restart PC.
Connect the USB cable again, and then take the steps again 2-4(1)

3.  Updating the firmware for M20X

3-1. Preparations

(1)  Turn on the projector and wait until the start-up is finished. If the auto search is

running, stop it by inputting a signal or pressing the INPUT key.

(2)  To call the process mode, press the buttons in order of below. (within 5

seconds) AV MUTE, AV MUTE, ▲, ▼, ENTER, ENTER, MENU
If you failed to call the process mode (the menu will appear), press the MENU
button to close the menu, and then try again to call the process mode after
waiting for about five seconds.

(3)  The process menu appears on the screen. Check the firmware version.

If the program version is 

“M20X020325”

 or 

“M20X020402”

 or 

“M20X020425”

 or

“M20X020611”

 or 

“M20X020614”

, then this unit is 

“AA” version

. Please use

“fwp_m20x_old.ttl”

 in the section 3-2(12). And the additional step is required in

the paragraph 

4(4-1(6)).

If unit’s version is not the above version, please use 

“fwp_m20x_new.ttl”

 in the

section 3-3(3).
Note: Be sure to write down the current program version.

(4) Select “SPECIAL” from the process menu and press ENTER button.
(4)  Select “USB-MODE” and then press the 

!

 

button to set the value to 1 from 0.