Program Jumpers - Johnson Controls YORK OPTIVIEW YK Series Service Instructions Manual

SECTION 3 - MICROBOARD 031-01730-000

PROGRAM JUMPERS

JP1 - Watchdog enable/disable. The position of this
jumper, in conjunction with Program switch
SW 1 position 12 enables or disables the pro-
gram Watchdog protection.
Never disable the watchdog protection. Se-
vere compressor or chiller damage could
result. The ability to disable the watchdog
protection is provided for factory testing
only!!!
IN - Watchdog protection enabled.
OUT - Permits Program switch SW1 position
12 to enable or disable the program.
Watchdog protection as follows:
Position 12 ON - Watchdog protection enabled.
OFF - Watchdog protection disabled.
JP2 - Display power and logic levels. Determines the
power supply voltage applied to the display.
Pins 1-2: +5VDC SHARP LQ10D367/368 and
LQ10D421 displays.
Pins 2-3: +3.3VDC NEC NL6448ACCC33-24
and LG Semicon LP104V2-W displays.
JP3 - Display backlight enable signal level polarity.
Jumper must be positioned according to the
voltage level required to turn on the Display
Backlight.
Pins 1-2: 0VDC SHARP LQ10D421 Display.
Pins 2-3: +12VDC or +5VDC as determined by
position of JP4. SHARP LQ10D367/368, NEC
NL6448AC33-24 and LG Semicon LP104V2-
W displays.
JP4 - Display backlight enable signal logic levels.
Determines the logic levels of the Backlight
enable signal.
Pins 1-2: +12VDC/0VDC SHARP LQ10D421
display.
Pins 2-3:
LQ10D367/368 NEC NL6448AC33-24 and
LG Semicon LP104V2-W displays.
JP5 - Display backlight power. Determines the power
supply voltage applied to the Display Backlight
Inverter Board.
40
+5VDC/0VDC SHARP
Pins 1-2: +12VDC. SHARP LQ10D367/368
and LQ10D421, NEC NL6448AC33-24 and
LG Semicon LP104V2-W displays.
Pins 2-3: +5VDC. Not Used.
JP6 - Display memory type. Jumper must be posi-
tioned according to type of RAM used for dis-
play memory devices (U25 and U27).
IN - EDO: (extended data out) type. Jumper
should be IN.
OUT - FPM: (Fast Page Mode) type. Not Used.
JP7, JP8 - Display brightness control technique. De-
termines whether the display brightness is con-
trolled by a variable voltage or variable resis-
tance.
IN: Variable voltage (0-5.0VDC). SHARP
LQ10D367, LQ10D421 and LG Semicon
LP104V2-W displays.
OUT: Variable resistance. NEC.
NL6448AC33-24 display.
JP9 - JP20 - Not Used.
JP21 - Factory mounted thermal-type flow sen-
sor – evaporator. Style "F" (and later) chillers
only (applies to Flash memory card version
C.MLM.01.07.xxx (and later)).
OUT: Not Used.
Pins 1-2: Not Used.
Pins 2-3: Style "F" (and later) chillers with
factory mounted evaporator thermal-type flow
sensor.
JP22 - Factory mounted thermal-type flow sen-
sor – condenser. Style "F" (and later) chillers
only (Applies to Flash memory card version
C.MLM.01.07.xxx (and later)).
OUT: Not Used.
Pins 1-2: Not Used.
Pins 2-3: Style "F" (and later) chillers with facto-
ry mounted condenser thermal-type flow sensor.
JP23 - Remote Current Li (J22) type. Configures Ana-
log Input for 0 to 10VDC, 2 to 10VDC, 0 to
20mA or 4 to 20mA.
OUT: Allows a 0 to 10VDC or 2 to 10VDC
input on J22-1.
Pins 1-2: Allows a 0 to 20mA or 4 to 20mA
input on J22-2.
Pins 2-3: Not Used.
FORM 160.54-M1
JOHNSON CONTROLS