McIntosh C 35 Service Manual

Page 1

(flzm ,

«at:

was

C35

SYSTEM CONTROL CENTER

mliniush

(STEM CONTROL CENTER

m
U)

mtlnitwfi Service Manual

L! \__7
CONTENTS
Performance Specifications ....................... 2
Mechanical Views ............................. 34
General Notes ................................... 4
Block Diagram .................................. 5-6
Section Locations ................................ 6
Front Panel and Trim Parts List .................... 7
Installation Hardware Parts List .................... 7
Section 1-lnterconnection Diagram .............. 7-9
Section 2-Signal Switching (Left channel) ....... 10-14
Section 3-Signai Switching (Right channel) ..... 15-19
Section 4-input and Mode Switches .............. 20
Section 5-Voiume Control Switches .............. 21
Section 6-Control ............................ 21-25
Section 7-Status Display ..................... 26-28
Section 8-Preamp and Power Supply ........... 29-31
Section 9-Outputs ........................... 32-36
Section 10-Backup Power Supply .............. 37-38
Repacking instructions ........................... 39

Page 2

Performance
Specifications

FREQUENCY RESPONSE
+0, -O.5d|3 From ZOHZ to 20,000HZ

RATED OUTPUT
2 . 5V

OUTPUT IMPEDANCE
Balanced 600 ohm
Unbalanced 600 ohm

MAXIMUM VOLTAGE OUTPUT
Main and Tape Output- 8V from 20 to
20,000Hz

TOTAL HARMONIC DISTORTION
0.002% maximum from 20 to 20,000H2 at
rated output

SENSITIVITV
Phono- 2.5mV for 2.5V rated output
(0.5mV IHF High Level 250mV for 2.5V
rated output (50mV IHF)

SIGNAL TO NOISE RATIO. A-WEIGHTED
Phono- 90dB below 10mV input (slidB
IHF)

High Level- 105dB below rated output
(95dB IHF)

MAXIMUM INPUT SIGNAL
Phono- 90m\/
High Level- 10V

INPUT IMPEDANCE
Phonoe 47K ohms and 65pF capacitance
High Levele 22k ohms

VOLTAGE GAIN
Phono to Tape- AOdB
Phone to Main- 60dB
High Level to Tape- OdB
High Level to Main- ZOdB

EOUALIZER CONTROLS
Variable TZdB boost to iZdB cut at
center frequencies of 30, 150, 500, 1500
iOkHz

GENERAL INFORMATION

SEMICONDUCTOR COMPLEMENT
b9 Bipolar Transistors
73 Field Effect Transistors
35 Integrated Circuits
112 Diodes

AC POWER OUTLETS
A Black, switched, and 1 red,
unswitched, 1500 watts total Capacity

POWER REQUIREMENTS
120 Volts, 50/60Hz, 25 watts

MECHANICAL INFORMATION

SIZE:
Front panel measures 16-1/8 inches wide
(In cm) by 54/16 inches high [13.8
cm) by 13 inches deep (33 cm),
including connectors, Knob clearance
required is 1~3/8 inches (3.5 cm) in
front of mounting panel.

WEIGHT
18 pounds (8.2 kg) net, 30 pounds (13.6
Kg) in shipping carton.