McIntosh MR 67 Service Manual

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WARRANTY STATION

1 «STEREO TUNE; M R 67

/ SERVICE MANUAL

\I
II

CONTENTS
INTRODUCTION...: ................... '1 5:)
FM ALIGNMENT ...................... 2
MULTIPLEX ALIGNMENT ............... . 4_

PARTS LIST .......................... 6
SPECIFICATIONS ...................... 11 '
CHASSIS LAYOUT ..................... 12
SCHEMATIC

DIAL STRINGING

" 2 CHAMBERS ST.
; BINGHAMTON.N.Y.

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INTRODUCTION

A11 McIntosh tuners are carefully aligned and tested at the factory using the
finest available test equipment. All McIntosh tuners will meet their pub-
lished specifications when shipped from the factory.

After extensive operation, especially when tubes have been replaced, it may
be desirable to realign the tuner circuits for best performance This manual
gives complete information on the circuit realignment procedure for the
MR 67 tuner.

The test equipment listed below (or its equivalent) is necessary to properly
align an MR 67. The accuracy of the alignment will be directly related to
the accuracy and calibration of the test equipment used.

FM Signal Generator (Measurements 210A or equivalent)
10.7 MC Generator (Preferably crystal controlled)

VTV M

Multiplex Generator (RCA WR-51A or equivalent)
Oscilloscope (Hewlett-Packard 120B or equivalent)

Harmonic Distortion Analyzer, desirable but not essential-(Hewlett-
Packard 330B or equivalent)

If the necessary test equipment is not available, alignment should not be
attempted. You may contact the McIntosh Customer Service Department
for additional information.

Customer Service
McIntosh Laboratory, Inc.
2 Chambers Street
Binghamton, New York

Our telephone number is 723-5491
The direct dial area code is 607