Revision B • 7/00
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2 Installation
INSTALLING BACKUP BATTERIES
Two AA batteries are supplied in the Installa-
tion Tool Kit. They supply a “Keep Alive” voltage
that holds each module’s logic state during mo-
mentary power outages. They mount in battery
clips on the Timer Control module circuit board.
Observe the correct polarity (marked on the cir-
cuit board) when installing the batteries.
Note:
Replace batteries yearly to ensure con-
tinuous backup protection. Remove one or both
batteries to prolong battery life when the console
will be unpowered for an extended period.
SETTING THE CLOCK
The digital time-of-day clock can be a master
or a slave. In master mode, the factory preset, clock
timing is derived from a temperature-
controlled quartz crystal oscillator. In slave mode,
clock timing is derived from a TC76/TC89-com-
patible ESE master clock reference signal.
The operating mode is set by switch S1, #1 on
the clock/timer circuit board. To access the clock/
timer board, open the meter panel to its service
position. The clock/timer board is mounted be-
hind the clock/timer display on the meter panel.
With the clock set to master mode, it’s neces-
sary to manually set the clock once power is ap-
plied to the console. Three magnetically-activated
Hall-effect sensors are used to adjust or hold the
time. They are positioned below and between each
pair of 7-segment displays, just behind the dis-
play face. Clock set magnet tool (PR&E # 90-151)
is used to activate the Hall-effect sensors.
To set the time, place the end of the magnet tool
directly against the plastic face over the appropri-
ate sensor. Use
Fast Set
to quickly advance the time
and
Slow Set
to slowly advance the time. To syn-
chronize the clock display to real time, set the clock
a few seconds ahead and use
Hold
to freeze the
display. To start the clock, move the tool away from
Hold
.
When an ESE time code signal is connected to
BNC connector, J3, on the clock/timer circuit
board, and slave mode is selected (S1, #1, is set to
the right), the clock does not need to be set. Should
the ESE time code signal fail, the clock automati-
cally defaults to its internal crystal reference os-
cillator, blinking an LED below the clock display
to indicate the loss of time code.
Timer Display
The Event Timer displays time in minutes, sec-
onds and tenths of seconds. The tenths of seconds
display is normally turned off while the timer runs.
It can be turned on while running by moving clock/
Setting the Clock
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Not
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ote:
e:
e:
e:
e: The plastic clock/timer bezel may be scratched
if the tool is moved while in contact with the lens.
FAST
SET
SLOW
SET
HOLD
PR&E #90-151
Clock
Timer
Master clocks are available from:
ESE
142 Sierra St.
El Segundo, CA 90245.
Telephone: 310.322.2136
www.ese-web.com
1 2
S1
Clock/Timer Option Switches
Switch S1, on the Clock/Timer printed circuit board,
as viewed with the meter panel in its service position.
Factory default settings shown.
Clock: Master Mode
Timer: .1 display On
.1 display Off
Slave Mode
