Matsushita Electric SE-HD510, Service Manual

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1. Accessories
2. Before Repair and Adjustment
1. Turn off the power supply. Using a 10 , 10W resistor, connect
both ends of power supply capacitors (C102-105, 127) in order to
discharge the voltage.
2. Before turning the power supply on, after completion of repair,
slowly apply the primary voltage by using a power supply voltage
controller to make sure that the consumed current at 50/60 Hz in
NO SIGNAL mode should be shown below with respect to supply
voltage 230 V/240 V.
Areas (E) (EG) (EP) (EB)
Power supply voltage AC 230V AC 230-240V
Consumed current 50 Hz 50-150 mA 50 Hz 50-150 mA
3. About the Protection Circuitry
The protection circuitry may have operated if either of the following conditions is noticed:
*No sound is heard when the power is supplied.
*Sound stops during a performance.
The functions of this circuitry is to prevent circuitry damage, for example, the positive and
negative speaker connection wires are “shorted”, or if speaker systems with an impedande less
than the indicated rated impedance of this unit are used.
If this occurs, follow the procedure outlined below:
1. Press the STANDBY /ON button, switch to STANDBY mode.
2. Determine the cause of the problem and correct it.
3