Motorola mp 101 c service manual

Page 1

MANUAL 68P63010A67

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MODEL MPIOIC
CHASSIS HS-23483

MOTOROLA INC.
PART NO. emsowAu

monaural transistor phono

MANUAL 68P63OIOA67

MODEL MPIOIC
CHASSIS HS-2348B

ELECTRICAL SPECIFICATIONS

Power Supply:
AC only,

120 volts, 60 cycle

Power Consumption: 25 watts.

RELATED PUBLICATIONS REFERENCE

RECORD CHANGER. . . . . MlllRC

SERVICE NOTES

LINE CORD REVERSAL - For mini-
mum hum, insert line cord plug in
both positions, Leave in the position
that provides minimum hum.

6-66

OPERATING AMPLIFLER WITH
LOAD - Always operate the ampli-
fier chassis with an output load
(either the speaker or an 8 ohm
resistive load).

CHASSIS REMOVAL

1. From rear of cabinet, remove

four (4) screws along rear ofhandle

and four (4) screws across cabinet
back.

2. Remove two (2) control knobs.
Carefully pull cabinet front forward
and remove three (3) screws which
secure chassis to cabinet front,

3. If necessary, disconnect all
cables (speakers, etc,).

9401 WEST GRAND AVENUE, FRANKLIN PARK.

PRICE 1 5 CENTS

RECORD CHANGER REMOVAL

1. Open Chang e r drawe r: to ope rating
position.

2. Screw changer hold down screws
(clockwise) fully into record changer
base.

3. Remove metal plug from right
side wall of record changer com-
partment. Insert a screw driver
in the hole and position retaining
clip in a vertical plane.

4, Lift right side of changer up and
position the other retaining clip in
a vertical plane.

5. Lift up changer and disconnect

audio and power cables from changer
base plate.

I LLI N O l S
PRINTED IN U.S.A.

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STYLUS REPLACEMENT
To Remove Stylus

1. Lift tone arm to a vertical posi-
tion.

2. Rotate the stylus selector to the
78RPM position,

3. Grasp stylus Withfingers andwith
a gentle motion twist stylus so the
tip end raises and the rear portion
snaps out from under the retaining
clip.

To Replace Stylus

1. Lift tone arm to a Vertical posi-
tion.

2, Holding new stylus in position
with fingers, snap rear portion of
stylus under the retaining clip.

3. Be sure stylus rests in "V" of
cartridge; then return tone arm to
normal position,

CARTRIDGE REMOVAL

1. Pull metal retaining clipforward

R1
VOLUME

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STYLUS REPLACEMENT

and carefully remove cartridge from
holder.

2. Disconnect two (2) phonograph
leads from rear of cartridge.

01 M4732
PRE-AMP

PARTS LOCATION

RE P LACEMENT
NUMBERS:

Diamond Stylus - 92-150DS
Sapphire Stylus - 92-15058

STYLUS PART

C5

02 M4732
DRIVER

03 M4872
OUTPUT