Alignment Procedure; Introduction; Test Equipment Required - Motorola R-2001A Service Manual

A12 FRNT PN
INTERFACE
SINAD IN
3
———(——

5-99. ALIGNMENT PROCEDURE

5-100. Introduction

5-101. This section provides a basic (para 5-105) and an extended (para 5-118) alignment procedure.
The basic procedure requires only the use of a calibrated oscilloscope. It is expected that the basic alignment
be performed whenever service work is performed. The extended alignment procedure requires module
extenders and a calibrated digital voltmeter in addition to the oscilloscope. The extended procedure should be
performed as required after servicing the system. All adjustments not covered in this procedure are to be
performed on suitable module test fixtures only.

5-102. Test Equipment Required

5-103. The test equipment or its equivalent listed in table 5-3 is required for the basic procedure. The
additional equipment required for the extended procedure is listed in table 5-4.
'Oscilloscope
Test Point Shorting Jumper
Nonmetallic Alignment Tool
*A R2001A is a suitable substitute
L
6 3
CONT ROL
A9
PROCESSOR
Figure 5-12. Sinad Meter Block Diagram
Table 5-3. Basic Test Equipment Required
Description
A3 SCOP E/DVM CONTRC )L
1 KHz
NOTCH FIL
5-22
DET
——»• SINAD OUT
DET
——- SINAD IN
8521-38
Model
Motorola R1004A