Roland HP 2700 - Setting the MIDI Transmit;Receive Channels

Dec.
1990
HP-3700/2700
rNOTE
1.
PHONES
BOARD
CIRCUIT
DIAGRAM is
stated
on
page
12.
2.
Replacement
AMP/
PS
BOARD is
220V
/240V version
only.
220V/ 240V
version
differs from
100V/
117V
version
only
in
fuse
system.
Order
proper
fuses
and
fuse labels
also If
necessary
for
100V/
117V.
(Refer
to the
table in
circuit
diagram.)
1.
PHONES
4^-
2.
MI*fflAMP/PS4<-
tto
220V/240Vi±mt
100V/U7V{i:mt(Dm\^Ht.
t
.a-XMch
to.-
XBAt
-
^
tz
i
j-Tf
o
lOOV/ 1
17V
ffl
O t .a
-
It.
HP-3700
AMP
/PS BOARD
CIRCUIT
DIAGRAM
SMALL BOARD
CIRCUIT
DIAGRAM
AMP/PS/1-V-
KlUSSil
SMALL
7|t-
SAFETY
PRECAUTIONS:
The parts
marked
A
have
safe-
ty-related
characteristics.
Use only
listed
parts
for
re-
placement.
SS±®)i]g
:
43S!l>a:3®tgT-0<
e.tXtzt,(DV
To
amomt.
}§$$nt8B(Ss
^
W
$1-
CD
8B
a
IS
«
I.
'
ct:
o C
UTTSt^o
HP-2700/
HP-3700
DIN
BOARD
CIRCUIT DIAGRAM
DIN
/-It
-
KSSSII
Lch Wo
241-427
Lch Tw front
241-674
Lch Tw bottom
241-574
Rch Tw
bottom
241-574
Rch Tw front
241-674
RESET
s
A.+5V
D.+5V
_A
D.+5V
D.GND
D.6ND
_7
O.GND
>
(VI
+<
_a
A.GND
A.GND
1
1
A. -12V
52417-1
110
FUSE
VALUE
FI. F2
F3. F4
F5
FB
100V
1 17V
FUSE TSC 6.3A TSC 630mA
TSC
1.25A TSC B.3A
LABEL
6.3A/125V
630mA/125V
1
.25A/125V
B.3A/125V
220V
240V
FUSE
CEE 6.3A
CEE
400mA
CEE
1.25A CEE 4A
LABEL T6 .
3A/250V
T400mA/250V
T1
.25A/250V
T4A/250V
17