1 Safety precautions
2 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C531~C534, C588~C589, C598~C599 and C954 through a 10
Ω
, 5W
resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 110/127/220~230V, 50/60 Hz in NO SIGNAL (vol. min, at CD mode) & AC 240 V, 50 Hz should be
~770mA .
3 Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
·
No sound is heard when the power is turned on.
·
Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note :
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
4
SA-VK61DGS
Summary of Contents for SB-VK61
Page 10: ...10 Operation Procedures 10 SA VK61DGS ...
Page 11: ...11 SA VK61DGS ...
Page 12: ...11 Disc information 12 SA VK61DGS ...
Page 13: ...13 SA VK61DGS ...
Page 17: ...13 Procedure for repairing the set 17 SA VK61DGS ...
Page 57: ...18 3 1 Cassette Deck Section 18 3 2 Adjustment Point 18 3 Alignment Points 57 SA VK61DGS ...
Page 131: ...25 1 Deck Mechanism RAA3412 S 25 1 1 Deck Mechanism Parts Location 131 SA VK61DGS ...
Page 132: ...132 SA VK61DGS ...
Page 135: ...135 SA VK61DGS ...
Page 136: ...136 SA VK61DGS ...
Page 138: ...25 3 Cabinet 25 3 1 Cabinet Parts Location 138 SA VK61DGS ...
Page 139: ...139 SA VK61DGS ...
Page 140: ...140 SA VK61DGS ...
Page 155: ...25 6 Packaging 155 SA VK61DGS PRT0406 D K J N L ...
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