McIntosh MQ 101 Service Manual

Page 1

mtlninsh

MO 101

ENVIRONMENTAL E OUA LIZER

SERVICE INFORMATION

STARTING WITH SERIAL N0. IVOOI

MclNTOSH LABORATORY INC. 2 CHAMBERS STREET BINGHAMTON, NEW YORK

Page 2

M0 l0l
ELECTRICAL SPECIFICATIONS

FREQUENCY RESPONSE .
iQ.5dB from 20Hz to 20,000Hz (with low frequency switch

in position i and mid and high frequency switches in
position 3.)

DISTORTION

Less than 0.l% at rated output level, 20Hz to 20,000Hz

HUM AND NOISE
SSdB below rated output (lhOuV)

INPUT SENSITIVITY AND IMPEDANCE

Main and tape input 2.5 volts at 60km for rated output
at lOOOHz.

INPUT ATTENUATOR
Switched OdB, -6dB, or -l2dB

OUTPUT L"

Main: 2.5 volts into 47kQ or greater load, 20Hz to 20,000Hz

Tape: 2.5 volts with rated input

EQUALIZATION
Low frequency: 0 to +l7dB at ZOHZ in 5 steps (0, +6,
+9, +13, +l7dB in positions I, 2, 3,
A, 5 respectively)
Mid frequency: -5 to +5dB at AOOOHz in 5 equal steps

High frequency: -h to +th at 20,000Hz in 5 equal steps

POWER REQUIREMENT

l20 volts, 50/60Hz, 20 watts

Page 10

inc 101

REPLACEMENT PARTS

Qlol Power transistor 132-078
om 132-075
23p;2§$mfiggaggrtiomay be obtained when ordered SWITCHES
McIntosh Laboratory, Inc. 8 Tape Monitor lh6-1A2
guzfigmggriegziggtuepartment 52 Input Attenuator ins-026
[3132311339 631925; S903 53 Mid. Frequency Hie-Hill
Sh High Frequency lhé-lhh
CAPACTORS SS Low Frequency lhé-lhh
Symbol Part
Number Description Number TRANSFORMERS
f Cl,2 Mylar 'IHF 250V 06h'067 T101 Power Transformer 159-092
€3.h Mylar .1uF 250V 06h-067
C7,8 Tent. Elect. .h7uF 35V 066-2H4 LAMPS
C9,1O Mylar .1uF 250V 06h-067 #1866 (Front panel) 058-014
C21,22 Mylar .ZZuF 250V 06h-096 RELAYS
c23,2h Mylar .A7ur 250V 06h-069 K] Relay 087-007
C27,28 Mylar .ZZuF 250V 06h-096
c29,3o Tent. Elect. 3.3rr 35v 066-238 FRONT PANEL 5 TR'
c31,32 Mylar .oespr 250v oak-095 Front Penal th'l79
C33,34 Mylar .h7uF 250V 06A-069 Front Panel End Caps 018-137
€35,36 Mylar .h7uF 250V 06h-069 Tape Monitor Knob OAS-253
637,38 Mylar .15HF 250V 064-100 Mid. Frequency Knob GAB-253
c39,uo Mylar .ou7ur 250v can-085 High Frequency Kn°b °3'253
0103 Elect. 220uF 16V 066-160 Low Frequency Knob (Front) OAh-375
Cth Elect. ZOO/ZOOuF Low Frequency Knob (rear) 090-100
lSO/lOOV 066-159
C106 Elect. zzour 16V 066-160 MOUNT'NG SYSTEM
Shelf Bracket (right) Duh-210
'ODES Shelf Bracket (left) aha-209
D101,102 Si. Rectifier 070-031 Mounting Template #400 038-u29
D103 si. Rectifier 070-031 Hardware Package 0hh-1h3
Dth Zener Diode 75V 070-025
MISCELLANEOUS ITEMS
FUSES Fuseholder 178-001
FlOl Fuse .5 ampere 089-009 AC Power Cord 170-021
CHOKES Shipping earton Ohh-le
Ll,z choke 300MH lzz-loo owners Manual 038'669
Audio Cable 170-015
TRANSISTORS
Q1,2 Si. PNP transistor 132-07h
Q3,b Si. NPN transistor 132-075
Q5,6 Si. PNP transistor 132-07Q
07,8 Si. NPN transistor 132-075
09,10 Si. NPN transistor 132-075

l5C123157-M59h9

I _ n

a l