5
1.5. 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.
1.6. Safety Part Information
Safety Parts List:
There are special components used in this equipment which are important for safety.
These parts are marked by in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these
critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the
original design without permission of manufacturer.
Safety Ref. No. Part No. Part Name & Description Remarks
10 RGR0468A-A REAR PANEL PH
10 RGR0468B-A REAR PANEL PR
10 RGR0468B-B REAR PANEL GS
A2 K2CA2YY00039 AC CORD PR
A2 K2CJ2YY00101 AC CORD GS
A2 K2CP2YY00061 AC CORD GS
A2 K2CQ2YY00119 AC CORD GS,PH
A2 K2CT2YY00097 AC CORD GS
A3 RQT9960-M O/I BOOK (En/Sp) PH,PR
A3 RQT9961-G O/I BOOK (En/Cn) GS
A4 K2DAYYY00002 AC PLUG ADAPTOR PH
PCB5 N0AC2GP00001 SMPS MODULE GS,PR
PCB5 N0AD2GP00002 SMPS MODULE PH
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