Panasonic SC-TM23 Service Manual

Contents

Panasonic SC-TM23 Service Manual Manual pdf 3 page image

(This “Safety Precaution” is applied only in U.S.A.)Before servicing, unplug the power cord to prevent an electric shock.When replacing parts, use only manufacturer’s recommended components for safety.Check the condition of the power cord. Replace if wear or damage is evident.After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.Before returning the serviced equipment to the customer, be sure to make the following insulation resistance testto prevent the customer from being exposed to a shock hazard.1 Safety PrecautionUnplug the power cord and short the two prongs of the plug with a jumper wire.Turn on the power switch.Measure the resistance value with ohmmeter between the jumper AC plug and each exposed metal cabinet part, such asscrewheads, antenna, control shafts, handle brackets, etc.Measure the resistance value with ohmmeter between thejumper AC plugand each exposed metal cabinet part, such as screwheads, antenna, control shafts, handle brackets, etc.Equipment with antenna terminals should read between 2.7M˜ and 3.9M˜ to all exposed parts*. ( Fig.1 )Equipment without antenna terminals should read approximately infinity to all exposed parts. ( Fig.2 )*Note : Some exposed parts may be isolated from the chassisby design. These will read infinity.If the measurement is outside the specified limits, there is a possibility of a shock hazard. The equipment should be repairedand re-checked before it is returned to the customer.1.1 Insulation Resistance TestFig.1 Fig.21.2 Caution for fuse replacement(For English)CAUTION:Replace with the same type fuse:(Manufacturer: LITTELFUSE, INC, Type: F1, 2.5A, 125V)(For Canadian French)ATTENTION:Utiliser un fusible de rechanche de méme type:(Manufacturer: LITTLEFUSE, INC, Type: F1, 2.5A, 125V)3