User manual MCINTOSH C22CE

[. . . ] CONTENTS Amplifier 11-14 Performance Specifications 3 Notes 3 Control and Balance Control 14-18 Rear Panel 4 Treble 19 Bass 20 Front Panel and Trim Parts List 4 Section Locations 5-6 Speaker Switch 21 Block Diagram 5-6 AC Power Supply 22 Interconnection Diagram 6-9 DC Power Supply 23 Repacking Instructions 24 Input/Output (Left and Right) 10-12 Mclntosh Laboratory, Inc. 2 C h a m b e r s Street, Binghamton, New Y o r k 13903 Printed Performance Specifications FREQUENCY RESPONSE + 0, -0. 5dB from 20Hz to 20, 000Hz RATED OUTPUT 2. 5V at MAIN and SWITCHED 1 and 2, and BALANCED OUTPUTS MAXIMUM VOLTAGE OUTPUT More than 8V at all outputs TOTAL HARMONIC DISTORTION 0. 002% maximum IHF, 0. 2% maximum from 20Hz to 20, 000Hz at rated output SENSITIVITY Phono: 2. 2mV for 2. 5V rated output, (0. 45mV IHF) High Level: 250mV for 2. 5V rated output, (50mV IHF) SIGNAL-TO-NOISE RATIO, A-WEIGHTED Phono: 80dB below 10mV input High Level: 90dB below rated output VOLTAGE GAIN Phono To Tape: 41 dB at 1000Hz Phono To Main: 61 dB at 1000Hz High Level To Tape: 0dB High Level To Main: 20dB INPUT IMPEDANCE Phono: 47K ohms and 65pF Capacitance High Level: 22K ohms TONE CONTROLS Bass and Treble stepped, 20dB boost to 20dB cut AC POWER OUTLETS 4 switched and 1 unswitched, Total capacity 1400 watts POWER REQUIREMENTS 120V, 50/60Hz, 37 watts DIMENSIONS Front Panel: 16 inches (40. 6cm) wide by 5-7/16 inches (13. 8cm) high. [. . . ] All voltages are ±10% with respect to ground. A high impedance (10 megohm) voltmeter must be used. Capacitor values are in microfarads (uF). The voltages enclosed in a box are signal voltages that are measured with a 2. 2mV, 1kHz signal connected to both channels at the PHONO 1 INPUT JACKS. 3 FRONT PANEL CONTROLS are set at: BALANCE CENTER DETENT BASS and TREBLE CENTER DETENT INPUT SELECTOR PHONO 1 LOUDNESS NORMAL MODE STEREO POWER ON VOLUME CLOCKWISE TAPE MONITOR 1 and 2 NORMAL RUMBLE and HF FILTERS FLAT SPEAKERS 1&2 5. On PC Board Drawings, Square Pad Indicates: a. WARNING: Parts marked with the symbol have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. Rear Panel Fig. 1 Rear view FRONT PANEL and TRIM PARTS LIST Symbol 016340 016334 018511 018512 018520 018521 C22-FrontPanel 090242 090243 090244 101035 104143 104144 Description Indicator Glass Front Panel Glass Top Panel Extrusion Lower Panel Extrusion End Cap Left End Cap Right Front Panel Complete W/Glass Input/Mode Knob Balance/Volume Knob Bass/Speaker/Treble Knob Screw, 4-40 x 5/16 Fill Head Felt Washer 3/4" Dia Felt Washer 5/8" Dia 4 Section Locations Block Diagram INTERCONNECTION PARTS LIST Symbol CAPACITORS C1. C2 JACKS J2, J3 J4, J5 Part 061276 Description DISC CAP, . 0047uF, 400VAC Phone Jack XLR Connector, Male Lamp Fuse Style Lamp Disc Indicator Slide Switch (SPDT) Power Transformer 117563 117437 LIGHTING DEVICES DS1. DS2 058138 DS3. DS4 058137 SWITCHES S1-S6 148068 TRANSFORMERS T1 159248 5 6 Interconnection Diagram 7 8 9 Input/Output, Left and Right INPUT/OUTPUT PARTS LIST Symbol RELAYS K1, K7, K9, K11, K12 K2-K6. K8, K10, K13-K16 LEFT INPUTS/OUTPUTS PCB 048481 AND RIGHT INPUTS/OUTPUTS PCB 048476 Description Form 1C, 5VDC, Reed, HE3321C0500 SPST. 5VDC, Reed, HE3321A0400 AMPLIFIER PARTS LIST Symbol RELAYS K1-K4 DIODES D1. D2 TRANSISTORS Q1 Part 087056 Part 087056 Description Form 1C, 5VDC, Reed, HE3321C0500 Zener: 51V, 5%, 400mW 087050 070102 132248 NPN, 300V, 2SC3790D or E AMPLIFIER PCB 048474 10 11 12 NOTE: Components and values toned in gray warrant your attention; parenthesized values apply to serial numbers L K 1 0 0 1 - L K 1 9 8 9 . nonparenthasized values apply to serial numbers LK1990 and above. Amplifier 13 14 Control and Balance Control 15 16 Control and Balance Control BALANCE CONTROL PCB 048478 CONTROL PCB 048479 BALANCE CONTROL PARTS LIST Symbol Part Description CONTROL PARTS LIST Symbol DIODES D1-D32 Part Description RESISTORS and POTENTIOMETERS R1 134475 Balance Control 070047 SIG, 75V, 150mA, 1N4148 INTEGRATED CIRCUITS IC1 133189 IC2 133108 RELAYS K1-K3 Dual Op-Amp. MC33178P 5V Regulator MC7805CT 087050 SPST, 5VDC, Reed, HE3321A0400 RESISTORS R1 SWITCHES S1 S2 TRANSISTORS Q1, Q2 134476 Volume Control 146238 146239 Input Switch Mode Switch 132224 PNP, MPS4126 17 18 Treble Bass TREBLE PARTS LIST Symbol SWITCHES S4. S5 Part 146240 Description Bass/Treble Switch BASS PARTS LIST Symbol SWITCHES S1. S2 Part 146240 Description Bass/Treble Switch TREBLE PORTION OF PCB 048477 19 20 BASS PORTION OF PCB 048477 Speaker Switch SPEAKER SWITCH PARTS LIST Symbol DIODES D1-D6 SWITCHES S3 Part 070047 146241 Description SIG DIODE 1N4148 Speaker Switch SPEAKER SWITCH PORTION OF PCB 048477 21 WARNING: Parts located in the below shaded area have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. AC POWER SUPPLY PORTION OF PCB 048471 AC POWER SUPPLY PARTS LIST Symbol CAPACITOR C9 FUSES F1 RELAYS K1 Part 061276 089081 087054 Description Disc Cap, . 0047uF, 400VAC Fuse 1A, 2AG SPST, 12VDC 22 DC Power Supply WARNING: Parts located in the below shaded area have critical characteristics. [. . . ] Use the original shipping carton and interior parts only if they are in good serviceable condition. Qty. 1 2 Part No. 033870 033884 033883 033885 033886 017156 100160 104080 033915 Description Shipping carton only Corner pad Inside carton only Top pad Bottom pad Plastic foot #10-32 x 9/16" Screw #10 Flat washer Shipping carton complete with all the above parts 1 1 1 4 4 4 1 TOP PAD INSIDE CARTON UNIT WITH (4) FEET ON BOTTOM COVER 10-32x9/16" SCREW WITH WASHER (4) CORNER PAD BOTTOM PAD SHIPPING CARTON INSIDE CARTON C22 PREAMPLIFIER Mclntosh Laboratory, Inc. , 2 Chambers Street, Binghamton, NY 139O3 Telephone (607) 723-3512 Printed in U. S. A. [. . . ]