McIntosh MQ104 Equalizer Service Information Late Production.pdf
MQ104 CUSTOM ENVIRONMENTAL EQUALIZER low FREQUENCY COMPENSATION 1 Err CHtHHH fflt/nlosf? mo 104 u-IEFT CHANNH-_J CUSTOM ENVIRONMENTAL EQUALIZER msm immi com nonets Aojosianis PISHT CHANNEt SERVICE INFORMATION SERIAL NO. AM2001 AND ABOVE MQ104 PERFORMANCE LIMITS to operate into 10kp load or greater MQ1 04 BLOCK DIAGRAM PROGRAMMABLE FILTER SCHEMATIC NOTES 1. Unless otherwise specified: Resistance values are in ohms, 1/A watt, and 5/ tolerance; capacitance values smaller than I are in microfarads (gF); capacitance values greater than 1 are in picofarads (pF 2. Printed circuit board components are outlined on the schematics by dotted lines. The circled numbers around the dotted lines correspond to the numbers on the PC Board layouts. 3. The heavy lines on the schematics denote the primary signal path. A. The terminal numbering of rotary switches is for reference only. 5. All voltages indicated on the schematics are measured under the following conditions: a. Use of an I 1 megohm input impedance VTVM. b. All voltages 10/ with respect to chassis ground. c. Mo signal at input terminals. d. AC input at 120 volts, 50/60 Hz. REPLACEMENT PARTS All parts not listed are common items obtain able from radio parts jobbers. Replacement parts may be obtained when ordered by PART NUMBER from: McIntosh Laboratory, Inc. Customer Service Department 2 Chambers Street Binghamton, New York 13903 (telephone 607-723-3512) CAPACITORS Symbol Part Numbe r Descripti ( on Numbe r C9, 10 Mylar . 39pF 064-193 Cl 1 , 12 Mylar . 047pF 100V 064-182 C13, 14 Mylar . 047pF 100V 064-182 C 1 5 , 16 Mylar 56pF 064-219 C23,24 Mylar .047nF 100V 064-182 C25,26 Mylar lpF 100V 064-186 C27,28 Mylar . 47pF 100V 064-194 C29.30 Mylar .068pF 100V 064-184 C39.40 Elect. 3.3pF 35V 066-238 C35 Elect. 47pF 1 6v 066-215 C37 Elect. 47pF 16v 066-215 C51 Elect. 47pF 16V 066-215 C103.104 E 1 ect. 470pF 40V 066-134 DIODES D 1 Si S i g . Diode 070-047 D 101 B ridge 400V 2A 070-044 RELAYS K1 Reed Relay 087-024 TRANS 1ST0RS Ql S i NPN transistor 132-090 1NTEGRATED C IRCU1TS IC1 ,2 1ntegrated circuit 133-05 1 C3,4 1ntegrated circuit 133-054 1 C5,6 1ntegrated circuit 133-065 TRANSFORMERS T 1 0 1 Powe r t ransforme r 159-138 POTENTIOMETERS R 1 . 2 100K 134-302 R3,4 100K 134-302 R5,6 100K 134-302 R7,8 100K 134-302 SWITCHES S 1 , 2 L . F. Equalization 146-150 RESISTORS R9. 10 Fi 1 m Res. 47K 5% 1 /4w 141-088 R 1 1 , 1 2 Fi 1 m Res. 2.2M 5% 1/4W 141-124 R13, 14 Fi 1 m Res. 8.2K 5% 1 /4w 141-070 R 1 5 , 16 Fi 1 m Res. 2.2M 5% 1 /4W 141-124 R1 7, 18 Fi 1 m Res. 47K 5% 1/4W 141-088 R19,20 Fi 1 m Res. 3.3K 5% 1 /4w 141-060 R21,22 Fi 1m Res. 560K 5% 1 /4w 141-114 R23.24 Fi 1m Res. 2.2M 5% l/4w 141-124 R25.26 Fi 1 m Res. 2.2M 5% 1 /4w 141-124 R27,28 Fi 1 m Res . 2. 2M 5% l/4w 141-124 R29,30 Fi 1 m Res. 270K 5% 1 /4w 141-106 R31,32 Fi 1 m Res. 24K 5% 1 /4w 141-081 R33.34 Fi 1 m Res . 5.6k 5% 1 /4w 141-066 R35.36 Fi 1 m Res. 5.6k 5% 1 /4w 141-066 R37,38 Fi 1 m Res. 560n 5% 1/4W 141-043 R39.40 Fi 1 m Res. 680n 5% 1 /4w LA -4T O t R41,42 Fi 1 m Res. 680n 5% 1 /4W 141-045 R43,44 Fi 1 m Res. 68 On 5% 1 /4w 4= O LA R45.46 Fi 1 m Res. 680n 5% 1 /4w 141-045 R47,48 Fi m Res. 220K 5% 1/4W 141-104 R49.50 Fi 1 m Res. 220K 5% 1/4W 141-104 R51,52 Fi 1 m Res. 220K 5% 1/4W 141-104 R53.54 Fi 1 m Res. 220K 5% 1/4W 141-104 R63,64 Fi 1 m Res. 22K 5% l/4w 141-080 R71 Fi 1 m Res. 180 5% 1/4W 141-031 R72.73 Fi 1 m Res. 100K 5% 1 /4w 141-096 R74 Fi 1 m Res. 22K 5% 1/4W 141-080 R75.76 Fi 1 m Res. 390n 5% 1/4W 141-039 MISCELLANEOUS ITEMS Fuse 1/8A Normal Bio 089-035 Knob, Equa 1 . , L.F. (2) 090-076 AC Power Cord 170-021 Fuseho1de r 178-099 Shipping Ca rton 033-227 Capacitor Box Assy. 045-145 Audio Cable 170-015 Owners Manual 039-073
