A. SET-UP
1. If no specific frequency is required, set the test
frequency at 1 kHz.
2. If no specific TRIM and OUTPUT settings are
required, set the volumes of TRIM and OUTPUT at
maximum.
3. Before turning the [POWER] switch on, set the
Idling Adjustment Volume (VR303, 470 ohms) at
minimum.
B. HOW TO ENTER THE TEST PROGRAM
While simultaneously pressing the [MODE], the
[REVERB] and the [DRIVE2] switches, turn the
[POWER] switch on. The DG80-112 will enter the
self test mode.
C. FACTORY PRESET OF RAM
While simultaneously pressing the [LEAD1] and the
[RECALL] switches, turn [POWER] switch on. The
RAM will be cleared, the factory setting data are
restored on the RAM, and the DG80-112 will enter
the normal mode.
D. PROCEEDING THROUGH THE TESTS
1. Switch Functions
Increment :
test no. select upward
Decrement :
test no. select downward
RECALL :
start of the selected test
STORE :
exit (in case of error)
LEAD1
– CLEAN2 :
no effect
REVERB, MODE :
no effect
2. LED Display Functions
When the DG80-112 is in the self test mode, the
LED display shows the number for the status as
below.
If the LED displays “E” and “(error no.)”, the
DG80-112 status can be changed to “test no.
selection” by pressing the [STORE] key. When the
status has been changed, the LED display shows a
next test no.
When the DG80-112 is in “test no. selection”, the
test no. can be changed by using the increment and
the decrement keys.
E. TEST PROGRAM
(Relay Check)
Check that the relay is switched ON within 2 – 3
minutes after the [POWER] switch is turned on.
(Menu of Test Program)
0.
LED Check
1.
Switch Check
2.
Motor Drive Volume check
3.
Volume Center Check
4.
Battery Check
5.
MIDI Check
6.
SRAM Check
7.
Flash Memory Erase/Write Check
8.
Sound Check
9.
TEST END
0. LED Check
(Test Contents)
When the DG80-112 enters the self test mode, the
LED Check is started and the LEDs light
automatically for the check in the sequence as
below.
• All the LEDs light simultaneously.
• All the LEDs go out simultaneously.
• The LEDs light one by one in the sequence as
below.
LEAD1 Program
LEAD2 Memory
DRIVE1 Channel
DRIVE2 Merge
CRUNCH1 All Data
CRUNCH2 User Mem.
CLEAN1 SP SIM
CLEAN2 VOL PEDAL
SPRING
HALL
PLATE
AMP
TAPE ECHO
UTIL.
LED display upper num.
top
LED display upper num.
right upper
LED display upper num.
right lower
LED display upper num.
bottom
LED display upper num.
left lower
LED display upper num.
left upper
LED display upper num.
center
LED display upper num.
dot
LED display lower num.
top
LED display lower num.
right upper
LED display lower num.
right lower
LED display lower num.
bottom
LED display lower num.
left lower
LED display lower num.
left upper
LED display lower num.
center
LED display lower num.
dot
DG80-112
18
TEST PROGRAM
• All the LEDs go out simultaneously
• All the LEDs light simultaneously
The LED Check is finished and the DG80-112
selects the next test no., so the LED shows a “1”.
(Error Number)
not appearing
1. Switch Check
Press the [RECALL] key when the LED display
shows “1”. The Switch Check is started and the
LED display shows the first check number “11”.
(Test Contents)
Press the keys according to the LED display guide
in the order as below.
(The Exit function of the [STORE] key is available
on the error status.)
11
LEAD1 Program Switch
12
LEAD2 Memory Switch
13
DRIVE1 Channel Switch
14
DRIVE2 Merge Switch
15
CRUNCH1 All Data Switch
16
CRUNCH2 User Mem. Switch
17
CLEAN1 SP SIM Switch
18
CLEAN2 VOL PEDAL Switch
19
REVERB Switch
1A
MODE Switch
1B
Increment Switch
1C
Decrement Switch
1D
STORE Switch
1E
RECALL Switch
When all the LEDs display light simultaneously, the
Switch Check is finished. Then the DG80-112 selects
the next test no., so the LED display shows a “2”.
(Error Number)
E1 – EE
The switch corresponding to the error number has a
problem or the wrong switch was pressed.
2. Motor Drive Volume Check
Press the [RECALL] key when the LED display
shows “2”. The Motor Drive Volume Check is
started and the LED display shows the first check
number “21”.
(Test Contents)
Once the Motor Drive Check has been started, all
the volumes rotate automatically as below.
21
to the Minimum
22
to the Maximum
23
to the Center
When all the LEDs light simultaneously, the Volume
Check is finished. Then the DG80-112 selects the
next test no., so the LED display shows a “3”.
(Error Number)
E0 – E3
If a Motor Drive Volume Check operation has not
been finished in 20 seconds, the LED display shows
“E0 – “E3” by replacing “2” to “E”.
3. Volume Center Check
Press the [RECALL] key when the LED display
shows “3”, and the Volume Check is started and the
LED display shows one of the numbers from “31”
to“38”.
(Test Contents)
Select the knob that requires adjustment and turn it
until the LED display shows the next volume check
number.
33
TREBLE
34
HIGH MID
35
LOW MID
36
BASS
37
PRESENCE
The A/D converter value is shown with binary digits
by using the AMP SELECT LEDs. Set the knob to the
center and turn the trimmer potentiometer to adjust the
AMP SELECT LEDs as shown on the list below.
If the knob data is the same as the data of the list
above, the adjustment of that knob can be passed. The
trimmer potentiometer numbers are shown below.
TREBLE :
VR603
HIGH MID :
VR605
LOW MID :
VR607
BASS :
VR609
PRESENCE :
VR611
Once the required Volume Center Check has been
finished, press the [RECALL] key and the DG80-
112 selects the next test no., so the LED display
shows “4”.
(Error Number)
not appearing
4. Battery Check
Press the [RECALL] key when the LED display
shows "5". The Battery Check is started.
(Test Contents)
The RAM Backup Battery check is executed
automatically.
Function
(status)
test no. selection
test execution
ok
error
upper num.
(test no.)
(test no.)
8.
E
lower num.
(blank)
(check no.)
8.
(error no.)
LED display
AMP
SELECT
LED
LEAD1
Program
On
LEAD2
Memory
Off
DRIVE1
Channel
Off
DRIVE2
Merge
Off
AMP
SELECT
LED
CRUNCH1
All Data
Off
CRUNCH2
User Mem.
Off
CLEAN1
Off
CLEAN2
Off
