Servicing Notices On Checking - Toshiba 50HP16 Service Manual

SERVICING NOTICES ON CHECKING

1. KEEP THE NOTICES
As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a
parts must be used.
4. BE CAREFUL WITH THE PDP PANEL
1. When you handle the PDP Filter you must
wear the gloves twice, because, you are to
avoid soil it by your sweat and dust.
2. When you lift the PDP Filter you should hold it
with the palm of your hand.
Don't pick up it with your fingers.
3. The back side of PDP Filter tends to damaged.
Since there is no coating.
Therefore, it put into the packing box at the
time of delivery, without piling up even at the
time of unused.
Also, when you take out it from a packing box,
be careful of the rubbing.
4. When the surface becomes dirty, wipe it with a
soft cloth as you draw a circle.
When it is dirty hardly, wipe it with a cloth
ethanol infiltrated.
Don't use ethanol for the back side.
5. Do not apply it to direct sunshine so that the
characteristic may change.
6. When you inspect the surface (the scratch, the
dirt and the air bubble), use the fluorescent
light.
7. When you use SCREW DRIVER and SCREW,
be careful of a metallic powder being mixed.
8. Do not damage the PDP Module with a
DRIVER.
9. Do Handling with the PDP Module by 2
persons.
10. There is a step difference between the cover
and PDP Module.
So, when you remove the screws, place a
cushion on it so that the PDP Module is not
being scratched.
Then remove the screws carefully.
mark, the designated
A1-2
11. When you remove the cover, do not scratch the
FPC on both ends of PDP Module.
12. Hold the four ends holder and be careful not to
touch the glass area.
13. Take care for the damage of vacuum exhaust
pipe due to a collision.
14. Moisture condensation may damage the PDP
Module.
So, leave it for 48 hours at the service room.
5. PUT PARTS AND WIRES IN THE
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
6. PERFORM A SAFETY CHECK AFTER
SERVICING
Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
1. Unplug the plug from the AC outlet.
2. Remove the antenna terminal on TV and turn
on the TV.
3. Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 2.5M ohm by
using the 500V insulation resistance meter
[Note 1].
4. If the insulation resistance is less than 2.5M
ohm, the inspection repair should be
required.
[Note 1]
If you have not the 500V insulation
resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
Screw
21pin jack
Side RCA jack
Rear RCA jack
Headphone jack