Panasonic RX-D55EE 서비스 매뉴얼 - 페이지 4

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1.2.

Before Repair and Adjustment

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 230V, 50Hz in TUNER mode at volume (min) should be (~300 mA).

1.3.

Caution For Fuse Replacement

1.4.

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.

1.5.

Safety Part Information

Safety Parts List:

There are special components used in this equipment which are important for safety.

These parts are marked by

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.

401

PCB3

L5901

T5903

Z5902

F5901

F5902

FP4100

FP5903

JK5901

ZA5901

ZA5902

ZA5903

ZA5904

R4149

R4153

R4154

in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these

Part No.

RKHN0005B-H

HANDLE

RD-DAPX001-V

TRAVERSE UNIT

K2CQ2CA00007

AC CORD

RQTX1037-R

O/I BOOK (Ru/Ur)

REPNT0063H

POWER P.C.B.

ELF15N035AN

LINE FILTER

G4C5ACH00007

TRANSFORMER

ERZVA5Z471

ZNR SURGE

K5D402BLA013

FUSE

K5D162BLA013

FUSE

K5G502A00039

FUSE PROTECTOR

K5G502A00039

FUSE PROTECTOR

K2AA2B000014

AC INLET

K3GE1ZZ00001

FUSE HOLDER

K3GE1ZZ00001

FUSE HOLDER

K3GE1ZZ00001

FUSE HOLDER

K3GE1ZZ00001

FUSE HOLDER

D0AF1R5JA113

1.5

D0AF1R5JA113

1.5

D0AF1R5JA113

1.5

Table 1

Part Name & Description

1/8W

Remarks

(RTL)