Motorola XM350-20 Service Manual

MOTOROLA
service manual
VP2
FILE 1971
VISUAL
DISPLAY PRODUCTS
CHASSIS
Model XM350-20
12VP-101
MODEL
XM350-20
GENERAL
INFORMATION
This model is a 12 inch transistorized
monitor which can be used for CCTV
or visual display.
The chassis design permits
incorporation of optional operating
control locations and provides support
for the CRT.
Chassis circuitry includes four stages
of video amplification, sync and
deflection circuits and a regulated
power supply. The picture tube is a 12
inch, 110 degree deflection CRT with
implosion protection. Composite video
is fed to the monitor through a coaxial
connector mounted on the rear of the
chassis.
CHASSIS PARTS LOCATION
CHASSIS SCHEMATIC DIAGRAM
REPLACEMENT PARTS LIST
SAFETY WARNING
SERVICE NOTES
NATIONAL SERVICE DEPARTMENT / MOTOROLA CONSUMER PRODUCTS, INC.
2ART NO. 68P65130A22 8-70
Front panel controls on this model
include Horizontal Hold, Vertical Hold
and Brightness. The contrast control
and width controls are mounted on
brackets at the rear of the chassis.
Service controls are mounted on the
plated circuit panel, and are accessible
from the rear of the chassis.
The chassis utilizes etched panel
construction with components
mounted on the top side and plated
wiring on the bottom. Component
reference numbers and circuit legend
are printed on the board to aid in
servicing. Horizontal and vertical
output and regulator transistors are
mounted on two vertical side brackets
which serve as a heat sink and CRT
support.
TABLE OF CONTENTS
PRICE 40 CENTS
Ce ee
ee ee ww ew we
Ce ee
Ce
Ce
COPYRIGHT 1970 BY MOTOROLA INC.
ELECTRICAL SPECIFICATIONS
Power Rating: 55 watts nominal.
Source: 120 volts, 60 cycle AC.
Input Impedance: 75 ohms Termi-
nated, 12K ohms unterminated
Video Input: 0.5 to 2.5 volts
composite PP (sync negative)
CAUTION
NO WORK SHOULD BE
ATTEMPTED ON AN EXPOSED
MONITOR CHASSIS BY ANYONE
NOT FAMILIAR WITH SERVICING
PROCEDURES AND
PRECAUTIONS.
FRANKLIN PARK, ILLINOIS
PRINTED IN U.S.A.