Replacement Parts; Parts Ordering; Critical And Warranty Parts Designation; Parts Tolerance Codes - Mitsubishi Electric WS-A48 Service Manual

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Table Of Contents

Table of Contents

Parts Ordering

To expedite delivery of replacement parts orders, specify the following:

Model Number/Serial Number

Part Number and description

Quantity

Note: Unless complete information is supplied, delay in processing of orders will result.

Critical and Warranty Parts Designation

Critical Electrical Components are indicated by Bold Type in the Parts List, and in the schematic

diagrams by shading.

Warranty Return Parts are indicated in the Parts List with an (*).

Parts Tolerance Codes

Refer to the following chart for tolerance characteristics of electrical components.

MARK

Tolerance %

MARK

Tolerance %

MARK

Tolerance (pF)

When Replacing the RF-Switch (RF-SW) or the PCB-SIGNAL:

1. Remove the PLATE-RF SW from the original component,

shown in the diagram at the right.

2. Install the PLATE-RF SW on the new RF-SW.

When Replacing the EEPROM

The EEPROMs (IC7C01, IC2K02 and IC8D0) store the adjustment data. After replacing the EEPROM, readjust the

data to the values given in the tables on pages 28 to 30. If good performance is not obtained with these values,

perform the Adjustment Procedure(s) given in the Description and Adjustment columns.

MODELS: VS-A50 / WS-A48 / WS-A55 / WS-A65