Service
◆
EasyKey™ Display
16
310653D
Replacing Display Board or Display
Backlight
Kits available:
1.
procedure, page 14.
2.
Unlock and open EasyKey™ door with its key.
3.
Note position of all connections (J2, J5, J6, J8, J9)
to display board then unplug the connectors. F
. 7.
4.
Remove 4 screws (508e) and display board
assembly (508b, 508c). F
5.
Separate graphic display (508b) from circuit board
(508c).
6.
If replacing display backlight, using Backlight
Kit 118337:
Before replacing the backlight, check the inverter
(D - F
. 7) on the display board for proper voltage.
a.
Turn EasyKey™ power on.
b.
Carefully measure AC voltage across the 2
pins of the inverter (D).
c.
Voltage should be about 700 VAC. If not,
replace the circuit board.
Part No.
Description
118337
Backlight Repair Kit
234447
Display Interface Replacement Kit
Includes membrane switch, graphic display,
display board, mounting plate, and screws.
WARNING
Servicing the EasyKey™ Display exposes you to high
voltage. To avoid electric shock, turn off EasyKey™
power and shut off power at main circuit breaker
before servicing.
F
IG
. 7
J6 (RS232)
J5 (power)
J8
J9
J2
508e
508c
D
(F.O. in - black)
(F.O. out - blue)
(membrane
switch)
F
IG
. 8
a.
Unplug inverter connector (X).
b.
Remove the two small screws and nuts (AA) -
be careful not to drop them.
508e
508b
508c
TI4862a
X
(backlight power)
AA
Summary of Contents for ProMix II Series
Page 3: ...Manual Conventions 310653D 3 ...
Page 10: ...Shutdown 10 310653D ...