Yamaha mdr 1 service manual

Page 1

MUSIC DISK RECORDER

MDR-1 ~

YAMAHA MUSIC DISK RECORDER MDR-I 31135
mm m mm =1 = = i' =' ='

J

55' MI sm Sign! ] mm» mm:
PLAYS!
L:flw#__#_§
Lad
mm
L
M C -S ervice
ICONTENS < E 3X)
SPECIFICATIONS (111$) .................. 1 UNIT CONNECTIONS ................ 10 ~ 25
FRONT PANEL ........................ 2 (IV? I- -v~wm¢7fia)

REAR PANEL ......................... 2 DISASSEMBLY PROCEDURE (5mm!) . . . . 26/27
MOB-1 OPERATIONAL OUTLINE (mm!) . 3 ~ 5 WIRING (Raul) ....................... 23
ERROR D|SPLAY(15-§fifii°vf) ------- 9 CIRCUIT BOARD (-2- Il) ............ 29~32

SCHEMATIC DIAGRAM (1%- ii.)

#

8" YAMAHA

00! 182
NIPPON GAKKI (30.. LTD HAMAMATSU. JAPAN

OAK-891 IIGQQ Printed in Japan 84.2

Page 2

MDR-l

ISPECIVFICATIONS (111%)

Recording Medium . . . ', .

(Sflflfifii)

Memory Capacity; . . -. . . i . , .

(Efififil)

Controls . ._ ..... ,. . . . . ..

(:IVbu-IL)

Display ..................

(7"(171/4)

Terminals ................

(3%?)

Rated Power Supply Voltage
(EWEEEE)

Rated Power Supply Frequency
(Elfifi'filfi 91%!)

Rated Power Consumption .....

(ilfiiéllfl)

Operational Environment ......

(fifiufi)

Dimensions ...............

(Vii)

Weight ..................

(3;)

A ccessories ...............

(fiflfi)

3" compact floppy disk
(3 479?:V/{9 I~7n-y 5-2744 X9)

.V 200 kbytes per side/max. 9 programs
(Ramon we: 9 m)

Power, ,s'top, play, record, music select, erase, fastforward,

'rewind, selected (repeat/erase), all (repeat/erase)

Music number, count

AC outlet, Electone attachment connector, remote connector, external connector
(A077 |~ i/y b) (II/9 b-Vfifi:$flfi-> (UE- I- =$95-)
(PHEBiElEFfi 2 $ 7 5 -)

. Refer to the name plate

(fififiéfififi)

. 50/60 Hz

Refer to the name plate
(fitfiéfififi)

. Temperature 10°C to 40°C

(fir; iO'C ~40"C)
Humidity 20% to 80%
(5&E20%~40%)

. 190 (W) x 273 (D) x 109(H) mm

. 4.5 kg

. 5 floppy disks

(7375-742fl5fl)