Roland JUNO-106 - Board Overviews; Panel Board Diagram; CPU Board Diagram

JUNO-106
JUL.
31,
1984
eset
aia
ae
ecm
roe
a
A og
ae 3 A Se enna ke
SECETON on ese sermons : Sols wenn
“oomnnnannensnensenalg
;
ytinev
bsoJt
.
NOTE:
BACKUP
CIRCUITRY/BATTERY
(CPU
BOARD)
’
4
PANEL
BOARD
PS
76139320
—
Mandatory
On
Units
with
Serial
Numbers
Up
To
439000
—
(pcb
22915911)
To
insure
a
longer
battery
life,
short
together
IC4’s
pins
4,
5
and
7
(ora
DG
terminal) of the CPU board.
In practice, first connect a jumper wire to a digital GROUND and then to
pins 4 and 5 to protect IC4 against static charges.
REPLACING BATTERY
Also replace the battery that cannot supply more than 2.8V under installed
condition.
In replacing, be sure to observe polarity of the battery. |
After mounting, check the voltage; it must be more than 3V.
View from foil side
to CPU BOARD Cos
é
ee Sr a fees oy es ee re ae, fe re
mid
CPU BOARD 9 eh
76139140
:
;
(peb
22915901)
op
e
Keyboard
ass‘y
SK-361GR
‘ano, Faace
~
—o
10