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PDP MONITOR
SERVICE MANUAL
CHASSIS : MP-00MC
MODEL : MT/MZ-42PZ10
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CONTENTS
Contents ................................................................................................................. 2
Safety Precautions ............................................................................................3
Specifications ..................................................................................................... 4
Control Descriptions ........................................................................................ 5
Adjustment Instructions ............................................................................... 8
Block Diagram .................................................................................................... 12
Wiring Diagram ................................................................................................. 14
Exploded View ............................................................................................ 16,18
Exploded View Parts List ........................................................................17,19
Replacement Parts List ............................................................................... 20
SVC. Sheet ................................................................................................................
- 2 -
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in
the Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to
prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
An lsolation Transformer should always be used during
the servicing of a receiver whose chassis is not isolated from Leakage Current Hot Check circuit
the AC power line. Use a transformer of adequate power rating
as this protects the technician from accidents resulting in
personal injury from electrical shocks.
AC Volt-meter
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitary that may be
inadvertently introduced during the service operation.
Good Earth Ground
If any fuse (or Fusible Resistor) in this monitor is blown, replace such as WATER PIPE,
it with the specified. CONDUIT etc.
To Instrument's
0.15uF
exposed
When replacing a high wattage resistor (Oxide Metal Film METALLIC PARTS
Resistor, over 1W), keep the resistor 10mm away from PCB.
Keep wires away from high voltage or high temperature parts. 1.5 Kohm/10W
Due to high vacuum and large surface area of picture tube,
extreme care should be used in handling the Picture Tube.
Do not lift the Picture tube by it's Neck.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source,
connect an electrical jumper across the two AC plug prongs.
Place the AC switch in the on positioin, connect one lead of
ohm-meter to the AC plug prongs tied together and touch other
ohm-meter lead in turn to each exposed metallic parts such as
antenna terminals, phone jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1M and 5.2M.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC
voltmeter with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC
voltage measurements for each esposed metallic part. Any
voltage measured must not exceed 0.75 volt RMS which is
corresponds to 0.5mA.
In case any measurement is out of the limits sepcified, there is
- 3 -
SPECIFICATIONS
Note : Specification and others are subject to change without notice for improvement.
O MONITOR RGB/HV Control Signal In/Out(D-Sub 25pin Cable)
O Video receiving system: PIn Name Spec. No. Pin
PAL BG 0.7Vpp