Roland HP 2700 Service Notes page 29
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Also See for HP 2700:
- Owner's manual (35 pages) ,
- Service notes (37 pages) ,
- Owner's manual (34 pages)
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Dec.
1990
HP-3700/2700
6)
Volume
09 ••• O#
The volume
value read
by
the
CPU
will
be
indicated
by
the
LEDs.
*
1
Rotate the
volume knob
to
left
and
right,
and check
that
the displayed value
changes smoothly from
the
minimum
to
maximum,
and
that the middle value
is
displayed
when
the
knob
is
in
the middle
position.
Check
that
the
display
does
not
change
when
you
move
the
brilliance
knob.
To
advance
to
the next
test item,
press
DEMO.
7)
Brilliance
90 999 09
The
brilliance
value read
by
the
CPU
will
be
indicated
by
the
LEDs.
*
1
Rotate the
brilliance
knob
to
left
and
right,
and check
that
the
displayed
value
changes smoothly from
the
minimum
to
maximum,
and
that
the
middle
value
is
displayed
when
the
knob
is
in
the middle
position.
Check
that
the
display
does
not
change
when
you
move
the
volume
knob.
To
advance
to
the next
test item,
press
DEMO.
8)
TUNEVR
••©••O#
The
TUNE VR
value read
by
the
CPU
will
be
indicated
by
the
LEDs.
*
1
Rotate the
TUNE VR
to
left
and
right,
and check
that
the displayed value
changes smoothly from
the
minimum
to
maximum,
and
that the
middle value
is
displayed
when
the
TUNE VR
is
in
the middle
position.
To
advance
to
the next
test Item,
press
DEMO.
9)
Direct
sound
•• #0# O#
The
LEDs
of
PIANO
1,
PIANO
2,
HONKY
TONK,
HARPSICHORD, VIBRAPHONE,
and E.PIANO
will
light.
Press these switches,
and
the corresponding
direct
sound
will
be
heard.
Check
that
each instrument
Is
sounded
correctly.
To
advance
to
the next
test item,
press
DEMO.
10)
Resonance sound
•• ##0 O#
The LEDs
of
PIANO
1,
PIANO
2,
and
HONKY TONK
will
light.
Press these switches,
and
only the
corresponding
resonance
sound
will
be
heard.
Check
that only
the
resonance
sound
of
each instrument
is
sounded
correctly.
To
advance
to
the next
test item,
press
DEMO.
11)
Battery
O# ••• #0
The
battery voltage read
by
the
CPU
will
be
indicated
by
the
LEDs.
*
2
Check
that the
maximum
value
is
indicated
(only
E.
PIANO
is
lit).
(Note
:
For reasons
of
circuit
design,
the
maximum
value
will
be
indicated
even
if
a battery
Is
not
inserted
into
the
holder.)
To
advance
to
the next
test item,
press
DEMO.
6)7tt'Ua-A
09 999 09
'J
i
-
Z.
^
CPU
LED
Ltto
*
1
-r:mt
L
LSfo
mitto
7)
yv'jryx
90 999 09
7')
')7y7.^CP\5i)<m.h-:LAjfim.^-LED-C^7nLtto
*1
A''
zztm
iS
Lt-to
4^'
'j
-
z.
cDo
s
L
/s
I.
'
c i
LtiTo
8)
TUNE VR
•• 099 09
TUNE
*1
TUNE
mtxmti.
-5
c t
Ltto
•• •O# O#
PIANO
K
PIANO
2.
HONKY
TONK. HARPSICHORD.
VIBRAPHONE.
E.PIANO
®§
LED
Ctl^>®
^mm
Ltto
DEMO^ff-fi.
10)
ly'J±y7.^
99 990 09
PIANO
1.
PIANO
2.
HONKY TONK
LED
L t
to
cixt>®sw^-}f-ri.
DEMO^ffTi.
i;^®f-X
11)
09 999 90
CPU
led
x^t^
itto
*2
(E.PIANO
®
ic
^<£
o
T
I
'
-5
c i
l
tto
{&.M
:
iilSS®ffi^±.
<Xh
IIT:
ti® Ali
Ltto)
DEMO^-jf-fi.
i?I®f-X
hUglcit^t-fc
12)
Sine
wave
#0 ••• #0
A
sine
wave
will
be output
to
OUTPUT
L and
OUTPUT
R.(1
cycle
about
1.2
mS, 2.6Vpp)
This
can be used
for testing
analog
circuitry, etc.
(There
is
no
special test
to
be performed
here.)
To
advance
to
the next
test item,
press
DEMO.
13)
Square
wave
•• O## #0
A
square
wave
will
be
output
to
OUTPUT
L
and
OUTPUT
R.(1
cycle
about 1.2mS,
BOmVpp)
This
can be used
for testing
brilliance, etc.
(There
Is
no
special test
to
be performed
here.)
This
is
the
last
test Item.
NOTES
*
1
The
A/D
value
is
Indicated
by
the
LEDs
of
PIANO
1,
PIANO
2,
HONKY
TONK, HARPSICHORD, VIBRAPHONE,
and E.PIANO
as
follows.
12) +l-'(y}&
90 999 90
OUTPUT LRU'OUTPUT
(1
77
7
t^if^l.2mS.
2.6Vpp)
TADriHlSS®TX
DEMO^-ffTi.
'^(Df-7
bMSi^M^tto
13)
mm
99 099 90
OUTPUT LSU'OUTPUT
Rlz7iBil&A<\ii7j^tLtto
(It
Y
7
1.2mS.
SOmVpp)
7')
U
T>X©-rX
h.
^<D{t(^^^Xttto
rX
•f
X
\-mS(iZ.tiX(ll^t><OXto
>±
*
1
A/D®M(i.
PIANO
1.
PIANO
2.
HONKY
TONK.
HARPSICHORD. VIBRAPHONE.
E.PIANO®# LED
7
bit
A/D
LED
PIANO
1
PIANO
2
HONKY
TONK
HARPSI-
CHORD
VIBRA-
PHONE
E.PIAN0
0
O
•
•
•
•
•
1
-
14
O
O
•
•
•
•
15
-
28
•
o
•
•
#
•
29
-
42
•
o
O
•
•
•
43
-
56
•
•
o
•
•
#
57
-
70
•
•
o
o
•
•
71
-
84
•
•
•
O
•
•
85
-
98
•
•
•
o
O
•
99
-
112
•
•
•
•
o
•
113
-
126
•
•
•
•
o
O
127
•
•
•
•
•
o
*
2
The
A/D
value
is
indicated
by
the
LEDs
of
PIANO
1,
PIANO
2,
HONKY
TONK. HARPSICHORD. VIBRAPHONE,
and E.PIANO
as
follows.
*
2
A/D®1i(i.
PIANO
1.
PIANO
2.
HONKY
TONK.
HARPSICHORD. VIBRAPHONE.
E.PIANO®# LED
8
bit
A/D
LED
PIANO
1
PIANO
2
HONKY
TONK
HARPSI-
CHORD
VIBRA-
PHONE
E.PIAN0
0
-
157
O
•
•
•
•
•
158
O
o
•
•
•
•
159
•
o
•
•
•
•
160
•
o
O
•
•
•
161
•
•
o
•
•
•
162
•
•
o
O
•
•
163
•
•
•
o
•
•
164
•
•
•
o
O
•
165
•
•
•
•
o
•
166
•
•
•
#
o
O
167-255
•
•
•
•
•
0
29
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