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Safety & MaintenanceInstructions, Warnings, And Notes
Safety Instructions For Repairs
Safety regulations require that during a repair:
zDue to the ‘hot’ partsof this chassis, the set must be connected to the AC power via anisolation transformer.
zSafety components, indicated by the symbol , should be replaced bycomponents identical to the original ones.
zWhen replacing the CRT, safety goggles mustbe worn.
Safety regulations require that after a repair, the setmust be returned in its original condition. Pay particular attentionto the following points:
zGeneral repairinstruction: as a strict precaution, we advise you to
all pins ofthe line output transformer (LOT)
line output transistor
pins of the connector with wires to the deflectioncoil
other components through which the deflectioncurrent flows.
Note: This
zRoute thewire trees and EHT cable correctly and secure them with the mountedcable clamps.
zCheck the insulation of the AC power cord forexternal damage.
zCheck the strain relief of the AC power cordfor proper function, to prevent the cord from touching the CRT,hot components, or heat sinks.
zCheck the electrical DC resistance between theAC plug and the secondary side (only for sets that have an isolated powersupply). Do this as follows:
1.Unplug theAC power cord and connect a wire between the two pins of the ACplug.
2.Turn on the main power switch (keep the AC power cordunplugged!).
3.Measure the resistance value between the pinsof the AC plug and the metal shielding of the tuner or the aerialconnection of the set. The reading should be
7/8/2004
