RR-US570PP, RR-US570E, RR-US590P, RR-US570E9 - Panasonic Audio Service Manual (repair manual). Page 3

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1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or

damaged by the short circuit.

2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly

installed.

3. After servicing, carry out the following leakage current checks to prevent the customer from being exposed to shock hazards.

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.

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.

Table 1

Safety

Ref. No.

Part No.

Part Name & Description

Remarks

13

RKS0454A-K

REAR CABINET

US570PP

13

RKS0454B-K

REAR CABINET

US570E

13

RKS0454H-K

REAR CABINET

US590P

ICP501

D4FB1R100015

RESETTABLE FUSE 

ICP502

D4FB1R100015

RESETTABLE FUSE 

A3

RQT9358-Y

O/I BOOK (En/Cf)

US570PP

A3

RQT9361-B

O/I BOOK (En)

US570E

A3

RQT9362-E

O/I BOOK (Ge/It/Fr/Du/Sp/Cn/Ar/Sw/Da/

Cz/Po/Pr/Ru/Ur)

US570E

A3

RQT9359-P

O/I BOOK (En)

US590P