Phono MC, 0.45mV for 2.5V rated output with the C500 Preamplifier and C500 Tube Pream- plifier. They are the ONLY cables to be used for Input Impedance connecting a C500 Controller to the C500 Pream- High Level: 22K ohms plifier or C500 Tube Preamplifier. Phono: MM, 47K ohms; 50 to 750pF, in 50pF steps MC: 25, 50, 100, 200, 500 or 1,000 ohms; 100pF...
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C500 PREAMPLIFIER 5 BALANCED I/O RIGHT 750737 SCH and PCB...
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6 BALANCED SWITCHING LEFT 750108 SCH and PCB...
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C500 PREAMPLIFIER 7 BALANCED SWITCHING RIGHT 750155 SCH and PCB...
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8 METER 750106 SCH and PCB METER ADJUSTMENT PROCEDURE Apply a 1kHz signal to both channels. Adjust the level for 2.5VAC at L and R SPKR1 unbal- anced output. Adjust R13 for 0dB on the C500 left and right meters...
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C500 PREAMPLIFIER 9 HEADPHONE 750262 SCH and PCB...
C500 PREAMPLIFIER PARTS LIST INTERCONNECT Ref. No. Description Part No. Ref. No. Description Part No. C61 CAP MONO 100PF 100V 10% NPO 061341 METER 124097 C62 CAP MONO 22PF 200V 10% NPO 061339 METER 124097 C63 CAP MONO 100PF 100V 10% NPO 061341 J1 CABLE ASSY DB25 CHASSIS 171859 C64 CAP MONO 1000PF 50V 10% NPO 061344 CABLE ASSY DB85 CHASSIS 171859 CAP ELECT 10UF 100VDC 066462 CAP ELECT 4.7UF 50V...
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MAIN LEFT PCB 750103 (Cont’d) Ref. No. Description Part No. Ref. No. Description Part No. C135 CAP ELECT 10UF 16V 066580 TRANSISTOR NPN SILICON 132317 C136 CAP MONO .1UF 50V 20% Z5U 061346 Q8 TRANSISTOR PNP SILICON 132304 C138 CAP MONO 100PF 100V 10% NPO 061341 TRANSISTOR PNP 132321 C139 CAP MONO .1UF 50V 20% Z5U 061346 Q10 TRANSISTOR PNP 120V 132255 C140 CAP MONO .1UF 50V 20% Z5U...
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C500 PREAMPLIFIER PARTS LIST Cont’d MAIN LEFT PCB 750103 (Cont’d) Ref. No. Description Part No. Ref. No. Description Part No. RES MF 10K 1% 1/4W 144504 R110 RES MF 2.67K .5% 1/4W 144614 RES MF 10K 1% 1/4W 144504 R111 RES MF 1.91K .5% 1/4W...
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MAIN LEFT PCB 750103 (Cont’d) MAIN RIGHT PCB 750102 Ref. No. Description Part No. Ref. No. Description Part No. R183 RES MF 4.75K 1% 1/4W 144520 CAP ELECT 10UF 16V 066580 R184 RES MF 4.75K 1% 1/4W 144520 CAP ELECT 47UF 35V 066446 R185...
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C500 PREAMPLIFIER PARTS LIST Cont’d MAIN RIGHT PCB 750102 (Cont’d) Ref. No. Description Part No. Ref. No. Description Part No. C163 CAP MONO .1UF 50V 20% Z5U 061346 CAP ELECT 10UF 50V 066445 C168 CAP MONO 22PF 200V 10% NPO 061339 CAP ELECT 47UF 35V 066446 DIODE SILICON 070174 C73 CAP MONO .1UF 50V 20% Z5U...
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MAIN RIGHT PCB 750102 (Cont’d) Ref. No. Description Part No. Ref. No. Description Part No. Q12 TRANSISTOR PNP 120V 132255 RES MF 1K 1% 1/4W 144513 Q13 TRANSISTOR PNP 132254 RES MF 1K 1% 1/4W 144513 Q14 TRANSISTOR PNP SILICON 132304 RES MF 4.75K 1% 1/4W 144520 Q15 TRANSISTOR PNP SILICON...
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C500 PREAMPLIFIER PARTS LIST Cont’d MAIN RIGHT PCB 750102 (Cont’d) Ref. No. Description Part No. Ref. No. Description Part No. R111 RES MF 1.91K .5% 1/4W 144613 R184 RES MF 4.75K 1% 1/4W 144520 R112 RES FP 10 OHM 5% 1/4W...
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BALANCE I/O LEFT PCB 750736 BALANCE I/O RIGHT PCB 750737 (Cont’d) Ref. No. Description Part No. Ref. No. Description Part No. CAP ELECT 47UF 16V 066380 CAP ELECT 10UF 16V 066580 CAP ELECT 47UF 16V 066380 CAP ELECT 10UF 16V 066580 CAP ELECT 47UF 16V 066380...
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C500 PREAMPLIFIER PARTS LIST Cont’d BALANCE SWITCHING RIGHT PCB 750155 BALANCE SWITCHING LEFT PCB 750108 (Con’t.) Ref. No. Description Part No. Ref. No. Description Part No. CAP ELECT 10UF 50V 066445 C17 CAP MONO .1UF 50V 20% Z5U 061346 CAP MONO 100PF 100V 10% NPO 061341 C18 CAP MONO .1UF 50V 20% Z5U...
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PARTS LIST Cont’d BALANCE SWITCHING RIGHT PCB 750155 (Cont’d) Ref. No. Description Part No. Ref. No. Description Part No. CONNECTOR HEADER 2PIN RT ANGLE 117873 RES MF 2.21 OHM 1% 1/4W 144607 PCB1 PC BD METER 129762 RES MF 10K 1% 1/4W 144504 RES MF 10K 1% 1/4W 144504 TRANSISTOR NPN SILICON...
C500 PREAMPLIFIER REPACKING INSTRUCTIONS Qty. Part No. Description 033838 Shipping carton only 034414 Foam inner carton top pad 033836 Inside carton only 034301 Bottom pad 017937 Plastic foot 400159 #10-32 x 3/4” Machine screws 4 404080 Washer flat #10 033837 Foam pad...
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C500 PREAMPLIFIER SERVICE MANUAL SERIAL NO. YS1001 And Above The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design without notice. Because of the constant upgrading of McIntosh products’ circuitry and components, the Company cannot insure, and does not warrant, the accuracy of the within schematic material, which is intended for information only.
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