Roland Dr. Rhythm DR-770 Service Notes page 10

DR-770
K EQ (IC106 on Jack Board)
4. When you press one of key-pads "5" to "7", a rectangle wave
will be output with following EQ setting.
Pad no. /
EQ High
EQ Low
LCD display /
<Fig 1> L(MONO)
R
Pad No. 5
K Panning
5. When you press one of key-pads 13 to 15, a sine wave will be
output with the follwing panning.
Pad no. /
Panning /
<Fig 2> L(MONO)
R
Pad No. 13
6. The LCD is displayed as shown below.
7. In the " " field the panning state is displayed, and in the
" " field the pressure value is indicated.
An asterisk "*" is displayed when the pressure value reaches
"127".
When a key-pad is pressed, the red LED first goes on and
then the green LED turns on when the pressure reaches
"127".
8. When pressing the [STOP/EXIT] button, the display will
show "OK".
9. Again, press the [STOP/EXIT] button to return to the main
screen.
5 6 7
0dB -12dB +12dB
0dB +12dB -12dB
00 +12 -12 -12 +12
(1v/div)
(2ms/div)
Pad No. 6 Pad No. 7
13 14 15
L7 CENTER R7
(1v/div)
(2ms/div)
Pad No. 14 Pad No. 15
10
Feb. 1999