Identifying The Version Number; Troubleshooting - Roland TD-7 Service Notes

TD-7 Nov. 1992
HOW
TO LOAD THE FACTORY
PRESET DATA
After the
mainframe has been
repaired,
always
load the factory
preset data onto the
RAM.
If
you
carry out this operation, all data
written in
the
RAM
will
be erased and replaced by the factory preset
data.
This operation
is
exactly the
same
as that for "8>INITIALIZE"
described
in
"TEST MODE".
1
.
On
the patch play screen
in
the normal
mode,
press the
[SYSTEM]
key.
2.
Use
the
[<]
or
[>]
key to
move
the cursor to
"INI",
then press the
[ENTER]
key.
The
following
message appears on
the
LCD
display.
~J
7
^ hU
—
•yU'fe*:/
h*
7^—
^CDO-
RAMCDrt^^7
T'y-fe'y h
dCD^fpti
TxX
ht-
KJ rtO[8>INITlALIZE]
t±<
Irto
[SYSTEM]
L
tto
2.
[<].
[>]+--e;y-7;U^INI
ICML
[ENTER]
-To
LCD-fV
INITIRLIZE
Hi
Hat.
Hi
Hat
I
NIT?
=
=+=
+
IDENTIFYING
THE VERSION /<-
a
NUMBER
The
ROM
version
number can be
identified on the
menu
screen
in
the test
mode.
It
can
also
be
identified
by
the following method.
1.
While simultaneously pressing the [SYSTEM] and [EDIT]
keys,
turn
the power on. The version number
is
displayed on the
LCD
display as
follows.
The displayed
ROM
version
number
is for
the
EP - ROM
(IC1
on
the main board).
ROM
3 r-rx
h€—
KJ
0cfo
-e
1.
[SYSTEM],
[EDIT]
4—
LCDf?
xyUTl::TIB©<t
^ ROM
07'\—
'7 3
>
{i^
EP
—
ROM(ICl
on
Main
Board)
O
t
®
r-to
*.***
:
version number
TD-7 Uer
U o P y R
i
'3
h t R o
1
.-i
n d
2.
Press any key to return to the normal
mode
screen. 2
.
3.
Use
the
[<]
or
[>]
key to
move
the cursor to "HiHat", then turn the
3. [<], [>]
^
— —
"HiHat" iZ^Sf]
L^ DATA-Z)'$^^^lZ
DATA knob
clockwise to set
it
to "ALL".
[el
L
T
,
ALL
izL'^'to
INITIRLIZE ALL
TD-7 ALL
I
NIT
?
4.Press the
[ENTER]
key,
and
the
message
"Are
you
sure?"
4.
[ENTER]
4-—
^}l]3'f
<!;>
"Are you sure?"
i
||;t:
$
tl
^
appears.
INITIALIZE ALL
Are you sure
?
TROUBLESHOOTING
b e r
i -3 1
e
r"'
r o r
P r
e*
s s
-3
n y
k
& y
5.
Press the
[ENTER]
key once again, the
message
"Completed"
will
appear and
initialization will
be executed.
When
completed,
the screen returns
to
the display
in
step
2.
Press the [EXIT] key
twice
to
return to the patch play screen.
5.
^3
-5—
Jt
[ENTER]
4-^ff'r<ts
"Completed"
Tr,
[EXIT]4-^2@ffLT>
The
MIDI
message
is
not received correctly. MIDI 7 y -tr—
?^iE
L
<
Misconnections of
MIDI
cables, or the MIDI
circuit
may
be at
fault.
MIDI
©Slrc©18 D
n
X(i MIDI
^
o
D U — U
ij
L T
-3
b n o r
-3
1
P r 0 s s
-3
r y
k
0 y
The Analog Chip
(IC4)
or peripheral
circuits
may
be
at fault.
ANALOG
Cip (IC4)|^j2[5]gg{I^'^cD^tbtt^) ^
o
If
you
strik
a pad when the power
is
turned
on,this error
message X^ K^PP<
tt X7^DTLC.©x^ —
7
y
may
appear on the
display. In this
case,
turn
the power
off
and then
-fe—
C t C ©Ji^(i> L
0
—
turn
it
on
again.
jgf
o
8