4
1.2.
Before Repair and Adjustment
Disconnect AC power to discharge unit AC Capacitors (C5700, C5701, C5702, C5704, C5705, C5706) through a 10
Ω
, 10 W resis-
tor to ground.
Caution:
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 240V, 50 Hz in NO SIGNAL mode at volume minimal should be ~ 500 mA.
1.3.
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.
1.4.
Caution For Fuse Replacement
Содержание SA-XH201GW
Страница 15: ...15 4 1 Others Licences ...
Страница 16: ...16 5 General Introduction 5 1 Power Saving Features ...
Страница 17: ...17 5 2 Linked Operations with the TV VIERA Link HDAVI Control ...
Страница 18: ...18 5 2 1 Easy Control With Viera Remote Control ...
Страница 19: ...19 5 3 Disc Information 5 3 1 Media that can be played ...
Страница 20: ...20 5 3 2 File Extension Type Support MP3 JPEG Xvid ...
Страница 21: ...21 6 Location of Controls and Components 6 1 Remote Control Key Button Operations ...
Страница 22: ...22 6 2 Main Unit Key Button Operations ...
Страница 24: ...24 7 3 Connection with an ARC compatible TV ...
Страница 47: ...47 12 3 Main Components and P C B Locations ...
Страница 76: ...76 ...
Страница 78: ...78 ...
Страница 122: ...122 MMH1303 ...