Change Information - Roland TD-7 Service Notes

CHANGE
INFORMATION
Change
History of
Main Board/
^ ^
TD-7 Nov. 1992
pcb
No.
22935352_00 22935352_01
22935352_02
Serial
No. ZE20100-ZE33749
ZE43750-ZEm*1:
ZEm**-
L29
—
12449401
BLM41A04
(chip
beads)
12449445
L30, 31
—
ACB3216M-600-B
(chip beads)
15399945 15399945
R110
MCR
100-1 01
J
MCR
100-101J
(chip
R 1W)
(chip
R 1W)
solder side
component
side
1
374981 3T0 15399413
R111
SR50TR 4.7K RPC10T4.7KJ
(R
1/4W)
(chip
R
1/10W)
R2, 3,14,15,20,
21,35,54, 60
15399301
RPCIOTOohm
(chip)
-
-
Change
History of
Analog
Board/
MM®
pcb No.
Serial
No.
22935353_00
ZE20100-ZE22049
22935353_01
ZE32050-ZE33749
22935353_02
ZE43750-
12449326
12449460
L202, 203,
206 SBT-0460
EXC-ELDR25C
(SBT
coil)
beads inductor
12449460
L209, 210,212,
EXC-ELDR25C
—
215
beads
inductor
NOTE
I
All
of the
above changes have been already made.
Change
History of
ROM
Version Up/
v
a
y7
"j
Serial No.
ZE20100-ZE22049 ZE32050-ZE33749 ZE43750-
ROM(ICI) VerNo.
Ver.
1
.03
Ver. 1.04 Ver.
1
.05
©
Cange History of Main Board
PCB
No. 22935352 00
PCB
No. 22935352_00
I
Serial
number
applied
I
SNO.ZE20100-ZE33749
\wmm\
SNO.ZE20100-ZE33749
(Contents
of
change
I
•
A
wiring pattern
was
cut.
(See
Fig.1)
•
A
jumper
wire
was added. (See
Fig. 1)
•
A
part
was
added.
R1114.7KQ
(See
Fig. 1)
R110 1W100 Q
(Chip) (See Fig.2)
(Service
respons^
These changes have been made
for
all
products.
There
is
no
need for additional service response.
,
—
yfj y
|>
^gjj
^
•
((K
1
#M)
•
mshmu
R1114.7KQ (SIl#jl)
RllO
IWlOOQ
(Chip)
(B(2#M)
(it-
Pattern Cut
Jamper Wire(JPW01
)
MAIN BOARD(pcb No.22935352_00)
R1 10 added(iiin)
Pattern Cut
16
Fig.2.
(^2)