ROLAND S 750

Page 1

May 1991

S-75CI/FIAS-75CIE

DIGITAL SAMPLEFI/ MEMCIFIY EDAFIEI

S- 750/ RAS- 750E

SERVICE NOTES

SPECIFICATIONs/Iifi

TABLE OF CONTENTS

- SPECIFICATIONS

. LOCATION OF CONTROLS

- EXPLODED VIEW

- PARTS LIST

- MOUSE (MU-1)

- DISASSEMBLY PROCEDURES

- BLOCK DIAGRAM

- CIRCUIT DISCRIPTION

. TEST MODE

. IDENTYFING VERSION NUMBER

. S750/S770 CHECK DISK MANUAL
-Ic DATA

-CIRCUIT BOARD (ANALOG)

- CIRCUIT DIAGRAM (ANALOG)
-CIRCUIT DIAGRAM (MAIN)

~CIRCUIT BOARD (MAIN)

-CIRCUIT BOARD (SWITCHING POWER SUPPLY)

~C|RCUIT DIAGRAM (SWITCHING POWER SUPPLY) Eifilgl (14 "19"J7'Efi1

'CIRCUIT DIAGRAM (MAIN)

0 RGB CABLE

- CIRCUIT BOARDS (JACK, VOLUME. PANEL)
'CIRCUIT DIAGRAMS (JACK. VOLUME, PANEL)

. SPECIFICATIONS

. PARTS LIST

. RAS-750E/OMS-750 MANUAL FOR SERVICE
-CIRCUIT DIAGRAM (MEMORY)

. CIRCUIT BOARD (MEMORY)

First Edition

Elk Page
.. 1
ANDRES! " 2
fiflg ......... .. 3
/\'-y U R I 5
772 (MU-l) 5
meant: ~~~~~~ ~ 6
713 "J 7E " 7
7-X l~-E- F 9 10
-93 Jj-DA- one ~~~~~ 10
3750/3770 CHECK DISK 33191:)?3 "

'07-- 9 ..............
Efigl (Analog)--
@filfll (Analog)
EEEIE (Main)
£93. (Main)
iifiEl (7M yiyfigifilzy I~)
I~)
Eflgg (X4 y) .............................
RGBT-Tllz .................................
£5112 (Jack. Volume, Panel)

ENE (Jack, Volume, Panel) ~~~~~~ 20
{ifi ....................................................... 1
/\'._\y U 1 [L ............................................ 1
RASEOUOMSTSOG-Exifiv 17le- ~

[EMPE- (Memory) ----------------------------------- 3
gfig (Memory) .................................... 3

Top Cover
(22023567)

Panel Cover (Left)
(22023458)

Floppy Disk Drive
FZ-357
Front Panel (12409185)

(22223470)

Panel Cover (Right)
(22023459)
I

NOTE
See page 2 for more details.
§¥L < (1 ZEEEIEOC to

[é Roland

17059609

Printe in Japan AHOO (DP) 1

O SAMPLING SYSTEM
Sampling Rate
Data Format '
A/D ...
D/A
Sound Memory ~-
Signal Processing
Frequency Response .
Dynamic Range -----
Total Harmonic Distorxion

O NPUTS
Impedance '
Level ~~~~~

O OUTPUTS
Max. Polyphy '''''
Individual out

6bit
20bit

-: Less than 001

--10k ohm

Residual Noise :

(input shorted.
Stereo Out (R, I.) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ :Impeadance
Level

Residual Noise :

(input shorted.

O INTERFACE

SCSI Interface (external HD, CD»ROM. Magnetic Optical Disk)
0 EXT CONTROLLER

TTL Level
0 DISK DRIVE

3.5 inch Floppy Disk Drive (tor both ZHD and 20D)
0 EDIT DISPLAY

LCD u 64 x 240 dots

RGB CRT OUT ~
Monochrome Composite
0 POWER COMSUMPTION
24W
O DIMENSIONS
1&7/8(W) X 5 - 3/16(H) x16-I/2(D) inch.
430(W) X 132(H) X 420(D) mm
O WEIGHT
9.5kg/21 lb 3 oz. (when memory is fully expanded)
O ACCESSORIES
Owner's Manual (English)

'48K, 44.1K. 24K. 2205K Hz
Gbit Liner WIth the DI Method

Standard 2Mbyte (Fully expanded 18Mbyte by RAS-750E and OMSJSO)
TVF (LPF, BPF,
20Hz to 20KH2 (+0/-3dB)

More than 87dB (Ivoice at Rated Output)

HPF, RING). TVA on 24bit

% (A/D-D/A)

-. +4dBm to -50dBm Continuous Variance

:1.6k Ohm
:+1dBm (Max. Level at 1Voice fillter off, Volume Max.)

+ 13dBm (Max. Level at 16voices tillter off, Volume Max.)
more than ~85dBm (Volume Max.)
lHF-A W96)

:I.6k Ohm
:+7dBm (Max. Level at Ivoice fillter off. Volume Max.)

+19dBm(Max. Level at 16voices fillter Off, Volume Max.)
more than -80dBm (Volume Max.)
IHF«A type)

~;200 x 320 dots

OSAMPLING RATE/ TIME

Owner's Manual (Japanese) - PNC.26043571 2M byte : standard Expandable to IBM byte
MIDI Cable 2.5m ------------ PNO.23485135 $2M, we M, lag
Disk Set 3.5 inch Floppy Disk (ZDD) PND.22403233
Rack Mounting Angle ------ PNO.22123621 45k! = 20-7360- kHz : 187-88604
°"'"V 5" '°" 00 "PN°-* MJkHz : 22.5sec. 4mm: : 204.5590.
AAc Cord
100V 00320001 .. ..pN°13439325 24kHz : :11.st 24kHz 2 375.659c
7V 0704401 " PN°-13439812F0 22,05kHz : 4556c, 22.05kHz : 409.05%
230V EC-21 O-EOG PNO.13439813F0
240VE 5722-6604606 4023495110

240VA $041 5-JOG

Mouse (MU-1) ~:PNo,txxnnx

PNO.13439814F0

0 OPTIONS
DP-2/6. F5-5U .. -' (Pedal Foot Switch)
RAS-750E ~~~~~ (Memory Board)

OMSJSO (fiMbvte RAM for HAS-750E)-
MF2~HD (2H0). MF2»DD (2DD)
RC-IOO --

CD«5~-

MO-7 . . : Magnet Optical

copyright © 1991 by ROLAND CORPORATION

(Memory Exoander)
3.5 inch Floppy Disk
Remote Controller
CDaROM Player

Disk Unit