STR X-6556 - BASED SMPS SCHEMATIC (Circuit Diagram)
CLICK ON THE SCHEMATIC TO ZOOM
The TV has a nominal working EHT voltage. Extreme caution
should be exercised when working on the TV with the back removed.
Do not attempt to service this TV if you are not conversant
with the precautions and procedures for working on high voltage equipment.
When handling or working on the CRT, always discharge the
anode to the TV chassis before removing the anode cap in case of electric
shock.
The CRT, if broken, will violently expel glass fragments.
Use shatterproof goggles and take extreme care while handling.
Do not hold the CRT by the neck, as this is a very dangerous
practice.
It is essential that to maintain the safety of the customer
all power cord forms be replaced exactly as supplied from factory.
Voltage exists between the hot and cold ground when the TV
is in operation. Install a suitable isolating transformer of beyond rated
overall power when servicing or connecting any test equipment for the sake of
safety.
When replacing ICs, use specific tools or a static-proof
electric iron with small power (below 35W).
Do not use a magnetized screwdriver when tightening or
loosing the deflection yoke assembly to avoid electronic gun magnetized and
decrement in convergence of the CRT.
When remounting the TV chassis, ensure that all guard
devices, such as nonmetal control buttons, switch, insulating sleeve, shielding
cover, isolating resistors and capacitors, are installed on the original place.
Replace blown fuses within the TV with the fuse specified in
the parts list.
When replacing wires or components to terminals or tags,
wind the leads around the terminal before soldering. When replacing safety
components identified by the international hazard symbols on the circuit
diagram and parts list, it must be the company-approved type and must be mounted
as the original.
Keep wires away from high temperature components.
Many electrical and mechanical components in the chassis
have special safety-related characteristics. These characteristics are often
passed unnoticed by a visual inspection and the X-ray radiation protection
afforded by them cannot necessarily be obtained by using replacements rated at
higher voltages or wattage, etc. Components, which have these special safety
characteristics in this manual and its Substitute replacement components, which
do not have the same safety characteristics as specified in the parts list may
create X-ray radiation.
Do not slap or beat the cabinet or CRT, since this may
result in fire or explosion.
Never allow the TV sharing a plug or socket with other
large-power equipment. Doing so may result in too large load, causing fire.
Do not allow anything to rest on or roll over the power
cord. Protect the power cord from being walked on, modified, cut or pinched,
particularly at plugs.
Do not place any objects, especially heavy objects and
lightings, on top of the TV set. Do not install the TV near any heat sources
such as radiators, heat registers, stove, or other apparatus that produce heat.
Service personnel should observe the SAFETY INSTRUCTIONS in
this manual during use and servicing of this TV set. Otherwise, the
manufacturer does not protect the resulted damage.
