Prince Castle Merlin II User manual

OPERATING
INSTRUCTIONS
Donato’s Master Timer
Model No. 740-T88D
355 East Kehoe Blvd. lCarol Stream, IL 60188
Tel: [phone] lFax: [phone]
Toll Free: 1-800-PCASTLE
Printed in 2000
Prince Castle Inc. 740-538
TABLE OF CONTENTS PAGE
Installation..................................................................... 2
Programming................................................................. 2
Operation ....................................................................... 3
Cleaning ........................................................................ 4
Parts List....................................................................... 4
Exploded View .............................................................. 5
Troubleshooting ............................................................ 5
Wiring Diagrams ........................................................... 6
Model Description
740-T88D Eight Channel
LIMITED WARRANTY
This product is warranted to be free from defects in
material and/or workmanship for a period of two
years from date of original installation, not to ex-
ceed 30 months from date of shipment from our
factory.
Any component which proves to be faulty in material
and/or workmanship will be replaced or repaired (at
the option of Prince Castle, Inc.) without cost to the
customer for parts or labor.
This warranty is subject to the following exceptions/
conditions:
!This equipment is portable, charges for on loca-
tion service (e.g. trip charges and mileage) are
not included in the provisions of this warranty.
!Use of any non-genuine Prince Castle parts
voids this warranty. All genuine Prince Castle
replacement spare parts are warranted for ninety
(90) days from date of purchase.
!All work must be performed by an authorized
Prince Castle Service Agency. Failure to do so
will void this warranty.
!Damage caused by carelessness, neglect, and/
or abuse (e.g., dropping, tampering or altering
parts), equipment damaged in shipment, by fire,
flood or an act of God is not covered under this
warranty.
ELECTRICAL
740-T88D
120 Volts
50-60 Hz

INSTALLATION
1. After you have removed the timer from the carton,
inspect the unit for signs of damage. If there is
damage to the unit:
!Notify carrier within 24 hours after delivery.
!Save carton and packing materials for inspection
purposes.
!Contact your local dealer or, if purchased di-
rectly, the Prince Castle Customer Sales Depart-
ment at 1-800-722-7853 to arrange for a replace-
ment to be sent.
2. Verify that all parts have been received. Mounting
Brackets and hardware provided.
3. To mount the timer, place mounting brackets in de-
sired location. Scribe location of mounting holes,
center punch, and drill holes. Attach timer to mount-
ing brackets placing star washer between bracket and
timer.
DISPLAYS AND INDICATORS
Shows the time for the selected channel
number.
Indicates the time value is in Hours and
Minutes.
Indicates that the time value is in
Minutes and Seconds.
Located above each channel timer
button, these lights change color
depending on the stage of the count-
down. RED = Stage 1, GREEN =
Stage 2 YELLOW = Stage 3.
CONTROLS
Activates countdown sequence in the
run mode.
In the program mode, it increases time
values for each channel . In the Run
Mode, it is used in conjunction with logo
button to increase the volume.
In the program mode, it decreases time
values for each channel . In the run
mode, it is used in conjunction with logo
button to decrease the volume.
2
Channel
(Button)
SCAN/UP
ARROW
SCAN/DOWN
ARROW
PRINCE
CASTLE
Logo
TIME
Display
H:M
M:S
LED
Indicators
Prog
Prog
Prog
Prog
Prog
Prog
Activates Program Mode and used to
adjust the alarm sound level.
The timer currently supports 3 program stages or
functions. Each program stage is independently
programmed. The stages run in succession begin-
ning with stage #1 and ending with stage #3.
Below Are The Pre-Set Stages Per Donato’s speci-
fications. These are pre-programmed times for
channels 1-7. Channel 8 is a special Accelerate
Mode.Note: All times are in H:M Hours & Minutes.
Stage Time
RED 36:00
GREEN 42:00
YELLOW 14:00
PROGRAMMING
1.Press and hold the PRINCE CASTLE logo for six
seconds. The TIME displays will change from
“----” to “Prog” and a beep will sound.
IMPORTANT: If a channel is not pressed within 30
seconds the display will change back to
“- - : - -” and the timer will automatically
go back to the run mode.
NOTE: While all displays are showing “Prog”, press-
ing the UP or DOWN ARROW Button will
increase or decrease, respectively, the display
intensity level.
2. Press the channel button for the particular timer
channel you wish to program. The time window
for the selected channel will show the current
time for Red stage and the LED indicator will be
red. This is the red stage program mode.

3
3. Press the SCAN/UP Arrow or the SCAN/DOWN
Arrow button to change the program time for the
selected channel.
4. Press the selected channel button again. The
time will show the current time for green stage
and the LED indicator will change to yellow. This
is the stage #2 program mode. Change the time
using the UP and DOWN ARROW Buttons.
5. Press the selected channel button again. The
time window will show the current time for the
yellow stage and the LED indicator will change
to red. This is the stage #3 program mode.
Change the time using UP and DOWN ARROW
Buttons.
6. You may back up to a particular stage by press-
ing the channel button until the LED indicator
cycles through stage red and rolls-over to stage
yellow. Continue pressing the channel button
until the desired program stage mode is se-
lected.
7. When finished programming each desired channel,
momentarily press the PRINCE CASTLE logo to
end the Program Mode. This saves the program
changes you have made for all channels.
8. You can change the sound level of the alarm in
RUN MODE. Press and hold the PRINCE CASTLE
logo; then, within six seconds, press either the
SCAN UP Arrow button or the SCAN DOWN Arrow
button. The SCAN UP Arrow button adjusts the
sound level to the louder alarm, the SCAN DOWN
Arrow button adjusts the sound level to the lower
alarm.
OPERATION
DAY CHANNELS 1-7
1. Press a channel button to activate a timing cycle.
(All channels can be activated and running at the
same time.) The time display will count down from
the programmed time for each stage of the timer
and the time value indicator will indicate either H:M
or M:S.
2. When the programmed time is reached the alarm
will beep twice, the LED will flutter during the
beeping to indicate which channel is beping, the
display will reset to the next stage and begin
counting down, and the LED will change to indicate
the stage that the channels timer is in. The stages
are RED, GREEN and YELLOW.
3. When the last stage counts out, the display will
change to END, the LED will be flashing red and
the alarm will continue to beep until the timer
button is pressed to cancel the alarm. When the
alarm is canceled the display will change to -----.
4. Press and hold the desired channel button for five
seconds to cancel an active timing cycle.
:00 3:00
36:00
RED STAGE
GREEN STAGE YELLOW STAGE
42:00 14:00

4
ACCELERATE CHANNEL 8
1. Accelerator mode 1=2.5 hours. LED is red during
timing. After timed out, LED will be flashing green
and alarm will have a two-tone beep until pressing
the accelerator channel button cancels the timer
alarm.
2. Accelerator mode 2=4 hours. LED is red during
timing. After timed out, alarm will have a two-tone
beep until pressing the accelerator channel button
cancels the timer alarm.LED will be flashing yellow
and the display will count down from 24 hours. After
it counts down, the LED will change to a flashing
red and alarm will have the regular single-tone beep.
Pressing the accelerator channel button cancels
the timer alarm.
NOTE: Accelerate 1 operation mode is selected by
pressing the accelerate timer button (8). The
display will show 2:30 when initially selected.
Accelerate 2 operation is selected by pressing the
UP BUTTON within 3 seconds after releasing the
accelerate timer button (8). The display changes to
accelerate 2 mode by changing from 2:30 (Acceler-
ate 1 mode start time) to 4:00 (accelerate 2 mode
start time).
.CLEANING
1. Do not allow grease to build up on the timer, wipe it
down daily with clean damp cloth.
IMPORTANT: Do not use abrasive or chemical
cleaners on your timer, this may cause damage to
the overlay.
PART LIST
ITEM PART NUMBER DESCRIPTION
1 69-079S Plastic Rivet (Pkg. Of 2)
2 740-034 Rear Cover
3 740-339S Main P.C. Board
5 88-653-2-4S Speaker Assy.
6 541-135 Speaker Shim
7 740-338S Switch Panel Assy.
8 740-036 Front Cover
9 70-048S Knob W/Hardware
10 72-292S Power Supply (110 Volt)
69-079S
70-048S
72-292S

EXPLODED VIEW
TROUBLESHOOTING GUIDE
5
A. No displays or indicators lit. Unit unplugged. Plug unit in.
Store's circuit breaker blown. Reset breaker.
Defective transformer. Replace Main Circuit Board.
Circuit inoperable. Replace Main Circuit Board.
B. Absence of Audio Alarm. Speaker inoperable. Replace Speaker.
Circuit inoperable. Replace Main Circuit Board.
C. Unit will not enter program All channels are still counting. Wait until channels are in stop
mode. Display does mode.
not show "Prog". Logo Switch inoperable. Replace Switch Panel.
D. Unit enters program mode. The channel is still counting. Wait until channel is in stop mode.
Display shows "Prog", but Arrow Switch inoperable. Replace Switch Panel.
cannot change times. Circuit inoperable. Replace Main Circuit Board.
E. Unable to start, stop, or store Circuit inoperable. Replace Switch Panel. If
timer presets in program mode. problem persists, replace Main
Missing or abnormal characters Circuit Board.
in displays.
CAUSE SOLUTION PROBLEM
1
2356
7
89
10

WIRING DIAGRAM 740-T88D
6