York YK-EP Operation And Maintenance Manual page 244

Pins 2-3: +5VDC/0VDC SHARP LQ10D367, LQ10D368, LQ104V1DG61 and LG Semicon LP104V2-
•
W displays.
JP5*
Display Backlight power. Determines the power supply voltage applied to the Display Backlight
Inverter Board.
• Pins 1-2: +12VDC. SHARP LQ10D367, LQ10D368, LQ104V1DG61, LQ104V1DG81 and LG
Semicon LP104V2-W displays.
• Pins 2-3: +5VDC. Not used.
JP7*, JP8*
Display brightness control technique. Determines whether the display brightness is controlled by a
variable resistance or a variable voltage.
IN: Variable voltage (0 to 5.0VDC). SHARP LQ10D367, LQ10D368, LQ104V1DG61, LQ104V1DG81
•
and LG Semicon LP104V2W displays.
OUT: Variable resistance – not used.
•
JP10*
Factory mounted thermal flow sensor – evaporator connected to J14.
• Pins 1-2: Not used.
• Pins 2-3: Place shunt in this position
JP11*
Factory mountedthermal flow sensor – condenser connected to J14
Pins 1-2: Not used.
•
Pins 2-3: Place shunt in this position
•
JP12*
Not used
• Pins 1-2: Not used.
• Pins 2-3: Place shunt in this position
JP12*
Not used
• Pins 1-2: Not used.
• Pins 2-3: Place shunt in this position
JP14
Applies a 120 Ohm terminating resistor across the COM3 RS-485 port.
IN: Not used.
•
OUT: Normal position - no bias applied.
•
244 YK-EP Style B Centrifugal Chiller