Akai DT-100 User manual

“= Soe
MO kevy te RE
Seka
wen
AUDIO-TIMER
DT-100
wove. DT-200
TABLE OF CONTENTS
SECTION
1
SERVICE
MANUAL
..........::cceseenseseteeeeeeeres
SECTION
2
PARTS
LIST
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SECTION
3
SCHEMATIC
DIAGRAM
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DT-100
19
28
DT-200
SERRE eT ER ee

SECTION 1
SERVICE MANUAL
TABLE OF CONTENTS
TECHNICAL
DATA
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4
CONTROLS...........cccccessssssssssccccnseenscceusecueeeceeseaseseseeeeasaneesaeuaasseaseeeensceseasenas
es
5
PRINCIPAL
PARTS
LOCATION
.............:::cccesereeeeescevesceseceeeeessesseesegecesaseeeees
7
EXPLANATION
HOW
TO
USE............:::ccccccessresseeeecceeereceeenaessensaeeesesenseeees
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8
ADJUSTMENT.
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11
COMPOSITION
OF
VARIOUS
P.C
BOARDG............::::cssereeeeeceseeeenstereeneenees
13
1.
MAIN
P.C
BOARD
PCB-4
(DT-100)
......ccesecccsesseeensecnernerseseseeeecsesseseeesensas
13
2.
MAIN
P.C
BOARD
PCB-1-2
(DT-200).........
sdedvwencnacadeuceeaaeesad
sedge
snceectavaeess
14
3. LED P.C BOARD PCB-4 (DT-100/DT-200)...........sssceseessssrseceeeesesrteneerrenanes 15

I.
TECHNICAL
DATA
1. MODEL DT-100
TIMER
ACCURACY
+15
seconds
within
one
month
TIMER BASE Quarts oscillator
TIMER OPERATION ACCURACY Less than 0.2 seconds
TIMER
DISPLAY
24
Hour
Display
(for
certain
models)
12/24
Switchable
Hour
Display
(for
others)
TIMER
SYSTEM
Daily
type
(turns
on
and
off
2
times.)
TIME SET PERIOD 1 minute to 24 hours
TIME
LIMIT
1
minute
to
1
hour
and
59
minutes
AC
OUTLETS
USA,
Canada
and
others:
SWITCHED
x
2
Total
500W
MAX
UNSWITCHED
x
1
Total
5|00W
MAX
UK,
Australia
and
Europe:
SWITCHED
x
4
Total
600W
MAX
POWER
REQUIREMENTS
120V,
60
Hz
for
USA
and
Canada
110/120/220/240V,
50/60
Hz
switchable
for
the
other
countries
including
Europe
—-
POWER CONSUMPTION 9W
DIMENSIONS 440 (W) x 78 (H) x 214 (D) mm
(17.3 x 3.1 x 8.4) inches
WEIGHT 2.5 kg (5.5 Ibs)
2. MODEL DT-200
TIMER BASE
Quartz oscillator
TIMER
ACCURACY
+15
seconds
within
one
month
ree
ee
eS
SB
8
TIMER OPERATION ACCURACY
TIMER DISPLAY
Less than 0.2 seconds
24 Hour Display (for certain models)
12/24 Switchable Hour Display (for others)
TIMER
SYSTEM
Weekly
type
(Up
to
8
operations
in
one
day,
turns
on
and
off
4
times.)
TIME SET PERIOD 1 minute to 24 hours
AC OUTLETS USA, Canada and others:
SWITCHED «x 2 Total 5010W MAX
UNSWITCHED x | Total 5|00W MAX
UK, Australia and Europe:
SWITCHED «x 4 Total 6(00W MAX
POWER
REQUIREMENTS
120V,
60
Hz
for
USA
and
Canada
110/120/220/240V,
50/60
Hz
internally
switchable
for
the
other
countries
including
Europe
POWER CONSUMPTION 9W
DIMENSIONS 440 (W) x 78 (H) x 226 (D) mm
: (17.3 x 3.1 x 8.9) inches
WEIGHT 3.3 kg (7.3 Ibs)
* For improvement purposes, design and specifications are subject to change without notice.

ll. CONTROLS
1. MODEL DT-100
HERO PRAIRESSOR | APTS TS
inary mere SEC.
ween noe nee T
AKAI ELECTRIC CO,, LTD.
MAEM I JABAN
AKA! ELECTRIC. CO,, LTD.
Boor no 7-100
MADE IN sAman
ac 3————- 1900
Fig. 1 Controls
1. POWER MODE SELECTOR 12. FAST AND SLOW BUTTONS
2. CLOCK BUTTON 13. REVERSE BUTTON
3.
SEC.
DISPLAY
BUTTON
14.
SEC.
RESET
BUTTON
4.
TIME
SET
BUTTON
15.
12
HOUR/24
HOUR
DISPLAY
SELECTOR
5.
TURN
ON
BUTTON
(Not
on some
models)
|
6.
TURN
OFF
BUTTON
16.
AC
OUTLETS
(Unswitched)
(Not
on
some
models)
7. TIME
LIMIT
SET
BUTTON
17.
AC
POWER
CORD
8. DIMMER SENSOR (Auto) 18. AC OUTLETS (Switched)
9. TIME DISPLAY 19. VOLTAGE SELECTOR (Not on some models)
10.
AC
OUTLET
INDICATOR
20.
AC
INLET
11. TIME LIMIT SET INDICATOR

2. MODEL DT-200
Oo
®
®
®
©O8
OAH
®
(19)
POWER MODE SELECTOR
FUNCTION SELECTOR KEYS
PROGRAM MEMORY SELECTOR KEYS (1 to 4)
DAY SET KEY
DIMMER SENSOR (Auto)
DIGITAL FL DISPLAY
AC OUTLET INDICATOR
ONE HOUR PLAY INDICATOR
9.
AM/PM
PROGRAMING
KEYS
(Not
on
some
models)
Fig.
2
Controls
10. PROGRAMING KEYS
11. AM/PM INDICATORS (Not on some models)
12. ONE HOUR PLAY KEY
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tere!
Aeubunoeessesame—eicar Ortaca’ FE
ONOaTRWN >
13.
CLEAR
KEY
19.
12
HOUR/24
HOUR
DISPLAY
SELECTOR
14.
TURN
OFF
KEY
{Not
on
some
models)
15.
TURN
ON
KEY
20.
AC
POWER
CORD
(Some
models
are
equipped
with
an
16.
UNSWITCHED
AC
OUTLET
(Not
on
some
models)
AC
Inlet
instead
of
an
AC
cord.
Connect
with
an
ap-
17.
SWITCHED
AC
OUTLETS
propriate
power
cord.)
18. VOLTAGE SELECTOR (Not on some models) 21. AC OUTLETS (Switched)
i

lll.
PRINCIPAL
PARTS
LOCATION
TT
1.
MODEL
DT-100
RELAY
POWER
TRANSFORMER
MAIN
P.C
BOARD
RL1
:
TRI
PCB-4
LEO P.C BOARD
PCB-4
Fig. 3 Top VIEW
2. MODEL DT-200
RELAY
POWER
TRANSFORMER
MAIN
P.C
BOARD
RL1
TRI
PCB-1
MODE
SET
KEYBOARD
LED
P.C
BOARD
DATA
INPUT
KEYBOARD
PCB-2
=
PCB-1
PCB-4
Fig. 4 Top View

IV.
EXPLANATION
HOW
TO
USE
MODEL DT-100
1.
SET
THE
TIMER
TO
THE
ACTUAL
TIME
1) Plug in the Power Cord to a household AC Outlet.
2) On the Time Display “AM 12:00” or “0:00” will
flash on and off depending on the setting of 12
Hour/24 Hour Display selector.
3) Press the Time Set button, then keep pressing the Fast
or Slow button until the actual time appears on the
Time Display.
4) Press the Sec Display button, then the Sec Reset but-
ton to set the seconds to zero (to synchronize the
Timer with the actual time).
5) Press the Clock button so that even if the Fast or Slow
button is pressed accidentally the actual time that was
set will not change.
SET THE TIMER
1) Connect the external components’ power cords to the
Timer’s AC Outlets (switched).
2) Plug in the Power Cord to a household AC Outlet and
set the Timer to the actual time. (See “SET THE
TIMER TO THE ACTUAL TIME”.)
3) Set the Power Mode Switch to ON and adjust the ex-
ternal components (following the manufacturers’ in-
structions).
4) Press the Turn ON button, the Fast or Slow button
and set the time for the external components to turn
on.
5) Press the Turn Off button, the Fast or Slow button
and set the time for the external components to turn
off.
6) Press the Clock button.
7) Set the Power Mode selector to Timer.
+ When starting the timer from OFF, please put the
Power Mode Switch to OFF and then TIMER.
SET THE TIME LIMIT
1) Connect the external components to the Timer’s AC
Outlets. .
2) Plug in the Power Cord to a household AC Outlet and
set the Timer to the actual time.
3) Set the Power Mode Switch to ON and adjust the ex-
ternal components (follow the manufacturers’ instruc-
tions).
4) Press the Time Limit Set Button, the Fast or Slow But-
ton and set the length of time the external components
are to be on (in other words after how long the external
components are to be turned off).
5) Press the Clock Time Button.
6) Set the Power Mode Switch to TIMER.
* To cancel the Timer Limit Set, set the time length to
“0:00”.
* Time Limit will take priority over the time set to turn
off.
If you have made a mistake in any of the above (“SET
THE TIMER TO THE ACTUAL TIME”, “SET THE
TIMER”, “SET THE TIME LIMIT”) repeat the whole
procedure. ‘
4. BLACKING
After a blackout, the Time Display will revert to flashing
“AM 12:00” or “0:00”. Therefore reset the Timer after
a blackout.
To reconfirm the times set press the following buttons:
Time for the external components
TO CUIT ON 2... cece eee seeceeeeeeeneveeeneees Turn On Button
Time for the external components
16 tir OFT: so cesccslisesicceceseseczescqecse Turn Off Button
Time left in the Time Limit ..... Time Limit Set Button
Seconds of the actual time............ Sec Display Button
i
)
j
:
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Sa
8
8
8S
MODEL DT-200
1.
SETTING
THE
TIMER
TO
PROGRAM
4
THE ACTUAL TIME
Taking
setting
to
7:00
a.m.
Sunday
as
an
example:
1)
Connect
the
timer’s
power
cord
to
the
mains
power
supply.
The
‘E’
error
mark
on
the
FL
Display
should
flash.
+
The
‘E’
will
also
flash
repeatedly
after
power
failures.
2)
Depress
the
TIME
SET
key.
Items
still
to
be
set
will
begin
to
flash
on
the
FL
Display.
Depress
the
PROGRAMING
keys
in
the
following
order:
1. 24 Hour Indication
EEE
If
it
is
for
7
o’clock
in
the
evening,
set
as
19:00.
ge ge ie
2. 12 Hour Indication
-(=-)-F ES
3)
Keeping
exactly
the
same,
wait
until
the
7
a.m.
an-
nouncement of the time, standard time, etc. When it is
7 am. depress the SEC RESET key.
NOTE: The minute indication will not change when
the SEC RESET key is depressed during the
period 0 to 29 secs. One minute will be add-
ed during the period 30 to 59 secs.
4) Depress the CLOCK key.
* The flashing concentric circles will disappear.
Your timer is now set but if you made a mistake in setting
the timer, repeat from Step 2.
2. ONE HOUR PLAY
Overrides
all
other
operations.
Please
set
the
timer
to
CLOCK always.
1) The POWER MODE selector must be set to TIMER.
2) Depress the ONE HOUR PLAY key. Cancel by
depressing the CLOCK key.
3. PROGRAMING
This
timer
can
be
programed
to
turn
the
power
on
four
times
and
the
power
off
four
times.
There follows four examples of programs which can be
retained in the timer’s memory.
PROGRAM 1
Turn on at 7:00 a.m. and off at 8:00 a.m. daily.
PROGRAM 2
Turn on at 9:00 a.m. and turn off at 9:45 a.m. on Mon-
days, Wednesdays and Fridays.
PROGRAM 3
Turn on at 7:30 p.m. (19:30) and turn off at 8:30 p.m.
(20:30) on Tuesdays, Thursdays and Saturdays.
Turn
on
at
9:00
p.m.
(21:00)
on
Sundays
and
turn
off
at
11:30
a.m.
the
following
morning.
'«
Confirm
program
setting
by
depressing
the
PROGRAM SET key and the respective PROGRAM
MEMORY selector key. The turn on time will be
shown. Depress the TURN OFF key to show the turn
off time.
4. PROGRAM |!
1) Depress the PROGRAM SET key.
2)
Depress
the
PROGRAM
MEMORY
selector
key
1.
3) Depress the TURN ON key.
4)
Use
the
PROGRAMING
key
to
set
the
day
when
the
power
is to
turn
on.
DAILY || DAY SET
5) Set the timer to the time when the timer is to turn on.
+ With the 12 hour indication depress the AM key
first.
Lo J=[ 7 }-[o|-L2]
6) Depress the TURN OFF key.
7)
Depress
the
PROGRAMING
keys
in
the
following
order:
* With the 12 hour indication, depress the AM key
first.
pe) Slee =e
5. PROGRAM 2
1) Depress the PROGRAM SET key.
2)
Depress
PROGRAM
MEMORY
selector
key
2.
3) Depress the TURN ON key.
4)
Use
the
PROGRAMING
keys
to
set
the
day
when
the
power
is
to
turn
on.
+
Depress
the
respective
day
key
once
and
it
appears,
twice
and
it
is
cancelled.
5)
Set
the
timer
to
the
time
when
it
is
to
turn
on.
*
With
the
12
hour
indication,
depress
the
AM
key
first.
fe J-L2}+Le |+Le]
6) Depress the TURN OFF key.
+
With
the
12
hour
indication,
depress
the
AM
key
first.
Fa eal Ee

6.
7.
PROGRAM 3
1) Depress the PROGRAM SET key.
2) Depress PROGRAM MEMORY selector key 3.
3) Depress the TURN ON key.
4) Use the PROGRAMING keys to set the days when
the power is to turn on.
+ Depress the respective day key once and it appears,
twice and it is cancelled.
5) Set the timer to the time when it is to turn on.
+ With the 12 hour indication, depress the PM key
first.
24 Hour Indication
paisa
12 Hour Indication
aera ee
6) Depress the TURN OFF key.
7) Depress the PROGRAMING keys in the following
order.
«With the 12 hour indication, depress the PM key
first.
24 Hour Indication
aie ial ie
12 Hour Indication
(alebels) sys)
PROGRAM 4
1) Depress the PROGRAM SET key.
2) Depress the PROGRAM MEMORY selector key 4.
3) Depress the TURN ON key.
4) Use the PROGRAMING keys to set the day when the
power is to turn on.
Fae fa coreet
. Depress the respective day key and it appears, twice
and it is cancelled.
5) Set the timer to the time when it is to turn on.
- With the 12 hour indication, depress the PM key
first.
24 Hour Indication
Be ee
12 Hour Indication
DEE es
6) Depress the TURN OFF key.
7)
Depress
the
PROGRAMING
keys
in
the
following
order:
+
With
the
12
hour
indication,
depress
the
AM
key
first.
POF eee
If you have made a mistake in setting any program:
1) Depress the PROGRAM SET key.
2) Depress the PROGRAM MEMORY selector for the
mistaken program.
3) Depress the CLEAR key.
4) Re-program.
10

V. ADJUSTMENT
FRONT SIDE
FRONT SIDE
WITHIN
16666.600 to
16666.999 ys
FREQ. COUNTER
DUET
OT- 100 / DT- 200
TP {(DT- 100)
TP2(DT-200)
1c2 PING)
MAIN P.C BOARD
FUNCTION : PERJOD
Fig. 7 Instrument Connections
MAIN P.C BOARD
PCB-4
Fig.
5
Main
P.C
Board
PCB-4
(DT-100)
rity”
cont ae R45 cg
MAIN P.C BOARD
PCB-i-2
Fig. 6 Main P.C Board PCB-1-2 (DT-200)
REFERENCE PERIOD SIGNAL MICROADJUST-
MENT
(Refer
to
Fig.
5
to
7.)
Connect
the
frequency
counter
to TP (DT-100), TP2 (DT-200) and pin @ of IC2, set
function to “period”.
Adjust the trimmer capacitor C4 so that frequency counter
reads within 16666.600 to 16666.699 wus.
Quick confirmation of the timer setting is possible by short-
circuiting
TPis
(DT-200
only),
as
this
will
cause
the
set’s
time count to become 60 times as large, changing the digit
that would otherwise be for “minutes” into “seconds”, and
that for “hours” into “minutes”.
NOTE:
Disconnect
the
power
cord
before
short
(or
release).
TPis.
11
:
;

VI. COMPOSITION OF VARIOUS P.C BOARDS
1. MAIN P.C BOARD PCB-4 (DT-100)
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3. LED P.C BOARD PCB-4 (DT-100/DT-200)
0! 4(DT-100)
D34{DT-200)
LN-324GP
DT-100
MAIN PC BOARD
Coes
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D33(DT-200)
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15

MEMO
16

MEMO
17

MEMO

SECTION 2
PARTS LIST
TABLE OF CONTENTS
I. MODEL DT-100
1. MAIN P.C BOARD (PCB-4) BLOCK..........ccccssssssssssseeseseesese sees 22
2. LED P.C BOARD (PCB-4) BLOCK .......c.cccessssesessecssseseseesess ence 2
3. ASSEMBLY BLOCK ...0.....ccsscscsscssssssssssseseceessnesseeee 22
4, FINAL ASSEMBLY BLOCK ...........ccccscessssssssesssseeers as
Il. MODEL DT-200
1. MAIN P.C BOARD (PCB-1-2) BLOCK ........sccccsesssssssseseesesse sees 24
2. LED P.C BOARD (PCB-4) BLOCK .....cccsscsssssesssssssssscsessesseee cues aw
3. ASSEMBLY BLOCK .00....cccccccsssssscssscsssssssssecscececstesscsecensseueeaes a”
4. FINAL ASSEMBLY BLOCK ....0.....cccccscsssssssssesesesssssssedeeesesse sess 25
1515) 52, ee ae a aCe EN Ae NRT RO ROE REE 5 eS PS 6
Resistor and Capacitor which is not listed in this parts list, please refer to COMMON LIST
'
FOR
SERVICE
PARTS.
Ate AS Lee o. 19