Test Program - Yamaha DG 100-212 Service Manual

DG100-212

TEST PROGRAM

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 DG100-212 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 DG100-212
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 DG100-212 is in the self test mode,
the LED display shows the number for the
status as below.
Function LED display
(status) upper num. lower num.
test no. selection (blank)
(test no.)
test execution (check no.)
(test no.)
ok 8. 8.
error E (error no.)
If the LED displays "E" and "(error no.)", the
DG100-212 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 DG100-212 is in "test no. selection", the
test no. can be changed by using the increment
and the decrement keys.
18
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 DG100-212 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
·All the LEDs go out simultaneously
·All the LEDs light simultaneously
The LED Check is finished and the DG100-212
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 DG100-
212 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 DG100-212
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.
AMP LEAD1 LEAD2 DRIVE1 DRIVE2
SELECT Program Memory Channel Merge
LED On Off Off Off
AMP CRUNCH1 CRUNCH2 CLEAN1 CLEAN2
SELECT All Data User Mem.
LED Off Off Off Off
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
DG100-212 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.