INSIGHT 4K LASER User Manual  
 
 
 
 
 
GP I/O Connector  Inside Projector 
 
 
 
Ext_GPIN_P 
Pin No.:  1  2 
3  4  5  6  7
 
8 
 
 
 
 
 
 
Ext_GPIN_N 
Pin No.:   20   21    23   23   24    25    26   
27 
Resist = 390 
∧
 
 
 
 
 
 
 
 
 
 
Photo-coupler 
Forward direction voltage: 1.1V 
(@5mA) 
 
 
• Using GPIO Control 
Momentary “ON” pulse enables you to control projector. To enable “ON” pulse, hold it for at least 500 ms. Hold “OFF” for at
 
least 500 ms before 
“ON”. (See page 76)
 
Here is function list to control projector by using GPIO port.
 
 
3D L/R timing signal input ON/OFF 
3D L/R display timing signal input ON/OFF 
System reserved (used internally) 
System reserved (used internally) 
The following functions apply depending on the combination of input terminals. 
System reserved (used internally) 
Selects the title registered to the preset button 1 
Selects the title registered to the preset button 2 
Selects the title registered to the preset button 3 
Selects the title registered to the preset button 4 
Selects the title registered to the preset button 5 
Selects the title registered to the preset button 6 
Selects the title registered to the preset button 7 
Selects the title registered to the preset button 8 
 
Example for dousing image:  Input ON to 5-24 and 7-26 while 6-25 and 8-27 are OFF.
 
Example for 
selecting the preset button 2: Input ON to 5-24 and 8-27 while 6-25 and 7-26 are OFF.
 
 
 
 
• 
The operation command coming from GPI/O port will be canceled when the projector is  processing other 
tasks, such as light source cooling and switching title. 
• 
Set all other pins than those in use to “OFF”. 
• 
The operation command is executed upon continuous input of the “ON” pulse for approximately 200 ms. 
Voltage applied across the pins of Ext_GPIN_P and 
Ext_GPIN_N should be in the range from 3.3 Vdc to 10 Vdc. 
Recommended Operating Current:  5mA 
Absolute Maximum Rating:  23mA