Roland TD-7 Service Notes

Nov.
1992
TD-7
BLOCK
DIAGRAM
/
7
IH
ENCODER
BOARD
SWITCH
BOARD
NIDI o
o}
OUT
FOOT
SW
HH
CONT
INPUT
4-9
-J
o-
INPUT
1-3
IC9
LATCH
IC10
CPU
H0/51O
MAIN BOARD
IC10
GATE
ARRAY
ANALOG BOARD
\
1
1
o
v/p
—
1
LPFPAMP
DATA
ADDRESS
IC205
_
DAC
-
LPF
-
AMP
IC14
SOUND
CHIP
IC19
SOUND
ADDRESS
J
ROM
ADDRESS
BUS
IC1
PROGRAM
ROM
2Mbit
IC6
SRAM
32Kbyte
i^baCK UP
DATA
BUS
LCD
UNIT
RCM201BM-A
PHONES
BOAR
MUTING
CIRCUIT
+5V +5Va
'V.RGL*
V.RGL
V.RGL

Roland TD-7 Specifications

General

Display	LCD
MIDI	In, Out, Thru
Effects	Reverb
Sequencer	Yes
Outputs	Stereo output, headphone output
Presets	50 preset kits
Power Supply	AC Adaptor