McIntosh C2300 Service Manual Download Page 27 | Manualshive

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C2300

49

50

HEADPHONE

750332 SCH AND PCB

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Summary of Contents for C2300

Page 1: ...atic and PCB 9 22 Display Schematic and PCB 23 28 Balanced Schematic and PCB 29 34 Tube Schematic and PCB 35 42 Data Schematic and PCB 43 46 Pushbutton Schematic and PCB 47 48 Headphone Schematic and PCB 49 50 Meter Lamp Schematic and PCB 51 52 Parts List 53 62 Repacking Instruction 63 CONTENTS SERIAL NO YA1001 And Above C2300 TUBE PREAMPLIFIER ...

Page 2: ...lts 50 60Hz at 75 watts 220 Volts 50 60Hz at 75 watts 230 Volts 50 60Hz at 75 watts 240 Volts 50 60Hz at 75 watts Standby Power less than 2 watts Note Refer to the rear panel of the C2300 for the correct voltage Overall Dimensions Width is 17 1 2 inches 44 45cm Height is 6 inches 15 24cm including feet Depth is 18 inches 45 72cm including the Front Panel Knobs and Cables Weight 29 5 pounds 13 41 k...

Page 3: ...C2300 SECTION LOCATION REAR PANEL 3 ...

Page 4: ...BLOCK DIAGRAM 4 ...

Page 5: ...C2300 INTERCONNECT 1 5 6 ...

Page 6: ...NOTES 7 8 ...

Page 7: ... F C 4 9 2 2 0 u F C 5 3 1 0 0 0 u F C 4 8 2 2 0 u F C 5 2 3 1 2 Q21 3 1 2 Q22 3 1 2 Q29 3 1 2 Q30 3 1 2 Q37 3 1 2 Q38 2 2 1 k R 8 7 2 2 1 k R 8 6 22pF C56 1 u F C 6 3 2 21 R90 1 u F C 6 0 MC PH 4 75k R60 4 75k R69 4 75k R58 4 75k R67 MC OUT MC OUT 1 0 0 0 p F C 4 5 2 2 1 R 7 3 1 0 0 0 p F C 4 4 3 1 2 Q24 1 0 0 p F C 4 1 3 1 2 Q23 4 75k R59 4 75k R66 1 0 u F C 5 9 3 1 2 Q32 3 1 2 Q31 J2 2 J2 3 J2 ...

Page 8: ...uF C9 10uF C19 2 1 3 4 K1 2 1 3 4 K3 2 1 3 4 K4 2 1 3 4 K8 221k R27 221k R28 40 2k R30 100pF C27 6 7 8 9 1 2 3 4 5 14 15 16 17 18 10 11 12 13 GND U1 6 7 8 9 1 2 3 4 5 14 15 16 17 18 10 11 12 13 GND U2 1uF C30 1uF C29 100k R41 2 1 3 5 4 K17 1uF C31 1uF C34 2 1 3 5 4 K18 10uF C37 2 J13 2 10uF C39 BALANCED TO UNBALANCED BALANCED TO UNBALANCED 1k R47 1k R43 221 R50 J14 12 J14 8 J14 7 J14 3 J14 2 GP1 3...

Page 9: ... 6dB DRIVER 6dB 12dB DRIVER 5 VOLT REGULATOR 3 1 2 IN OUT U23 5 VOLT REGULATOR 2 3 1 IN OUT U22 1uF C115 BUFFER 2 1 3 4 K26 10uF C114 10k R173 VOLUME CONTROL 1uF C124 10uF C125 VOLUME CONTROL 47uF C147 20K R192 6dB 33 2k R217 3 1 2 Q57 3 1 2 Q56 267k R210 200k R201 1 2 3 S G D Q58 1 2 3 S G D Q62 1000pF C156 3 1 2 Q69 1000pF C155 1M R230 10M R223 10k R174 1k R178 9 10 11 12 13 14 15 16 1 2 3 4 5 6...

Page 10: ...FFER 100 R143 100 R142 NC NC OUTPUT RIGHT RIGHT RIGHT RIGHT LEFT LEFT 10k R 119 2 1 3 4 K20 2 1 3 4 K24 2 1 3 4 K21 100k R 125 100k R 122 10uF C82 10uF C79 221 R127 J21 3 J21 2 J21 10 J21 11 J20 1 J16 18 J16 17 J16 15 J20 5 J16 14 J20 6 J16 13 J16 12 J16 10 J20 10 J16 9 J16 7 J16 4 J20 16 J16 3 J16 3 J20 17 J16 2 J16 1 2 3 1 8 4 B B U13 1 2 J17 2 221 R131 2 J19 2 221 R129 1 J19 1 221 R128 1 J17 1 ...

Page 11: ...NVERTER 806 R97 2 3 1 8 4 B B U10 1 1uF C 67 1uF C 68 8 10 9 U11 3 D3 100k R98 806 R96 100k CCW 1 2 3 R107 1uF C 72 22uF C 73 100k R 105 22 1k R101 100k CCW 1 2 3 R106 1uF C 70 100 R 108 DGND METER RECTIFIER 100k R 103 22 1k R100 METER ON OFF CONTROL D4 7 5 6 U11 2 D2 6 5 7 U10 2 100 R 109 3 2 1 Q42 1 3 2 4 11 B B U11 1 3 2 1 Q41 14 12 13 U11 4 10k R116 10k R117 5V 10V 10V 5V 15V 15V 5V 10V METER_...

Page 12: ... 2 3A J5 3 D27 100k R168 DRIVER SENSOR 5 8V BUFFER 1k R169 0V SQH1 VOLCS VOL DATA SDATA TUBE ON FIL2 5V 5V 24V 6 J10 16 6 J10 11 6 J10 6 6 J10 1 3A 3A J1 15 J1 16 3A 3A J1 10 J1 11 3A 3A 3A 1 6 4 3 2 5 K25 D18 D20 1M R159 3 2 1 Q51 3 1 2 Q52 1k R170 J29 5 J28 2 J27 4 J26 1 J26 2 J26 6 J15 SEC 4 J30 8 POSITIVE 5 VOLT SEC 1 J30 2 J30 1 100k R154 J33 1 IR MUTE CONTROL IR MUTE J33 5 J33 6 J33 10 J33 1...

Page 13: ...C2300 21 22 MAIN 750761 PCB 2 BLK WHT ...

Page 14: ...47uF C8 2 3 1 7 B GND 14 U6 1 SELECTOR METER ILLUMINATION 2 21k R29 200 2 3 1 CCW R33 200 2 3 1 CCW R32 13 12 11 U7D STDBY_LED 1uF C1 8x22k 2 3 4 5 6 7 8 9 1 R13 100 R15 7 8 5 2 3 9 10 12 15 14 6 1 4 11 16 13 U2 1 3 2 GND OUT VCC U5 100 R20 8x22k 2 3 4 5 6 7 8 9 1 R22 8x10k 2 3 4 5 6 7 8 9 1 R24 5 6 4 U6B 200 2 3 1 CCW R31 200 2 3 1 CCW R34 J3 4 J2 1 J2 18 J2 8 J2 6 J2 2 J2 5 J2 15 J2 17 J4 4 J4 2...

Page 15: ... 7G 10 5G 8 2G 5 F 48 F 1 F 2 d r p g f h a n c m k DP COM e j b DS6 17 16 46 47 19 44 22 21 41 42 24 39 8 9 6 3 4 1 26 25 28 31 30 33 36 35 38 15 18 20 7 43 45 48 2 5 23 27 29 32 40 34 37 13 14 11 10 12 N C N C S8 S7 S5 S6 S3 S2 S0 S1 N C S11 S12 XT S13 S14 SI Vss T0 T1 T2 T3 T5 T6 T8 T7 S4 S9 N C XTb RSTb CSb Vfdp N C T4 T9 S10 S15 N C N C T11 T10 T12 T13 N C SCK Vdd N C U8 24V FIL1 FIL2 FIL2SW ...

Page 16: ...27 28 DISPLAY 750641 PCB 3 ...

Page 17: ...C27 2 3 1 C J13 47uF C26 47uF C24 47uF C22 100k R37 100k R23 100k R21 2 3 1 G J8 2 3 1 G J7 2 3 1 G J3 2 3 1 G J4 2 3 1 G J5 2 3 1 G J6 2 3 1 G J1 2 3 1 G J2 10uF C16 10uF C14 10uF C10 10uF C8 10uF C6 10uF C12 10uF C4 10uF C2 2 1 3 4 K8 2 1 3 4 K5 2 1 3 4 K4 2 1 3 4 K1 2 1 3 4 K2 2 1 3 4 K3 10uF C20 10uF C19 267k R18 267k R17 47uF C32 2 3 1 C J15 47uF C30 47uF C25 2 3 1 C J14 2 3 1 C J12 47uF C23 ...

Page 18: ... 47uF C27 2 3 1 C J13 47uF C26 47uF C24 47uF C22 100k R38 100k R37 100k R24 100k R23 100k R21 D5 2 1 3 4 K19 2 1 3 4 K18 2 1 3 4 K24 2 1 3 4 K23 2 1 3 4 K21 2 1 3 4 K26 D7 2 1 3 4 K25 OUTPUT OUTPUT OUTPUT RIGHT RIGHT J20 17 J20 16 LEFT 10uF C20 10uF C19 47uF C32 2 3 1 C J15 47uF C30 47uF C25 2 3 1 C J14 2 3 1 C J12 47uF C23 47uF C21 2 3 1 C J10 100k R44 100k R43 100k R42 100k R41 100k R39 2 1 3 4 ...

Page 19: ...C2300 33 34 BALANCED 750642 PCB 4 ...

Page 20: ...M R9 1 5k R12 8 6 7 V1B 10uF C7 1k R19 121V 22 1k R22 22 1k R23 1k R18 22 1k R20 22 1k R21 DS6 DS4 2 21k R75 2 21k R76 1uF C17 1uF C16 2 21k R74 236V 236V 236V 236V NC L MM OU T 100uF C4 1 82k R4 100uF C3 1 82k R2 1 5k R13 200k R16 100k R11 200k R14 2 1 3 Q2 2 1 3 Q1 DS5 3 1 2 Q8 DS3 J3 7 TUBE ON R M M IN L MM IN 10k R77 J3 9 J3 11 J3 8 TUBE ON J3 2 J3 1 5 9 4 V1C 5 9 4 V2C J2 2 J2 1 3 2 1 V2A J1 ...

Page 21: ...R31 9V 1M R38 3 2 1 V4A 001uF C25 1 82k R29 1M R37 3 2 1 V3A 0033uF C28 8V 1 5k R40 8 6 7 V4B 200k R43 0033uF C27 1M R42 1 5k R39 8 6 7 V3B 200k R41 1uF C32 22 1k R49 22 1k R50 1uF C31 22 1k R47 22 1k R48 J2 4 TO MAIN L MC OU T 5 9 4 V3C 1k R32 1k R30 J4 10 J4 9 75k R36 J4 7 J3 4 J3 3 J4 11 J4 12 10uF C18 100k R26 PHONO AMP 1uF C34 75k R35 1uF C33 J4 8 J4 5 100uF C22 100uF C21 2 1 3 Q3 2 1 3 Q4 J4...

Page 22: ... 1k R72 2 1 3 Q5 22 1k R69 22 1k R70 22uF C47 GND GND L MAIN 2 J16 8 2 1 3 Q6 22 1k R71 J2 7 J2 8 J16 3 J16 2 J16 4 J16 5 J16 1 47pF C45 15K R63 3 32k R58 1 5k R66 120V 200k R67 47pF C44 15K R62 3 2 1 V5A 8 6 7 V5B 1uF C51 1uF C52 J6 1 J6 2 J6 5 1uF C50 J6 3 1uF C49 8 6 7 V6B 3 2 1 V6A 3 32k R56 221k R57 1 5k R64 200k R65 J6 4 J6 6 J6 9 J6 7 J6 8 J3 6 J3 5 J6 10 J6 12 J6 11 175V1 175V1 175V1 236V ...

Page 23: ...C2300 41 42 TUBE 750643 PCB 5 12AX7A 12AX7A 12AX7A 12AX7A 12AX7A 12AX7A ...

Page 24: ... 2 5 1 J13 10 R26 2 5 1 J8 2 5 1 J6 2 5 1 J3 221k R29 221 R13 1uF C3 5 6 7 U3B 20K R14 DATA J10 15 GND J10 14 GND 10V J10 10 POWERON J10 9 PASSTHRU DATA J10 5 PC SPKR 1 J10 4 SCLK SQH1 PASSTHRU 10k R27 8 10 9 U5C 182 R24 182 R25 11 13 12 U5D 11 13 12 U4D 3 2 1 7 B GND 14 U5A 182 R21 182 R22 6 5 4 U4B 8 10 9 U4C 182 R18 182 R20 3 2 1 7 B GND 14 U4A 182 R17 1uF C1 J10 18 J10 17 IR MUTE CONTROL J10 1...

Page 25: ...C2300 DATA 750762 PCB 6 45 46 ...

Page 26: ...J2 12 J2 10 J2 15 J2 17 RESET S1 S2 S4 DS4 DS6 DS5 OUTPUT2 OUTPUT1 DS2 DS1 5V J2 11 J2 13 DS7 DS3 STANDBY ON TONE BYPASS S7 MONO REC MO NITOR MENU D N OUTPUT1 J1 1 OUTPUT2 J1 16 STDBY_LED J1 14 J1 2 SELECT DN SELECT UP S3 RECMON MONO BYPASS J1 5 J1 3 OUTPUT1 SETUP J1 18 J1 13 J1 11 STDBY ON J1 9 J1 17 J1 15 J1 10 J1 8 J1 6 J1 4 J1 12 J1 7 100 R30 47uF C11 IR SENSOR 2 1 3 Vcc Vout GND MT1 1uF C12 F...

Page 27: ...C2300 49 50 HEADPHONE 750332 SCH AND PCB 8 ...

Page 28: ...RN GRN 5 6V 5 6V 5 6V 5 6V 5 6V 5 6V 2 1 3 4 R B G D2 332 R1 2 1 3 4 R B G D1 1K R7 2 1 3 4 R B G D6 1K R11 332 R9 FROM DISPLAY 332 R2 1K R8 1K R12 332 R10 J1B J1E J1H J1K J1C J1A J1D J1F J1G J1I J1J J1L 2 1 3 4 R B G D4 1K R3 332 R5 2 1 3 4 R B G D3 2 1 3 4 R B G D5 1K R4 332 R6 ...

Page 29: ... 25V 066507 C53 CAP ELECT 220UF 25V 066507 C54 CAP MPF 0 0033 5 63VDC 064455 C55 CAP MPF 0 0033 5 63VDC 064455 C56 CAP MONO 22PF 200V 10 NPO 061339 C57 CAP MONO 22PF 200V 10 NPO 061339 C58 CAP ELECT 10UF 50V 066445 C59 CAP ELECT 10UF 50V 066445 C60 CAP MONO 1UF 50V 20 Z5U 061346 C61 CAP MONO 1UF 50V 20 Z5U 061346 C62 CAP MONO 1UF 50V 20 Z5U 061346 C63 CAP MONO 1UF 50V 20 Z5U 061346 C64 CAP MONO 1U...

Page 30: ...25 D1 DIODE ZENER 5 1V 070186 D2 DIODE SILICON 070174 D3 DIODE SILICON 070174 D4 DIODE SILICON 070174 D5 DIODE SILICON 070174 D6 DIODE SILICON 070174 D7 DIODE SILICON 070174 D8 DIODE SILICON 070174 D9 DIODE SILICON 070174 D10 DIODE SILICON 070174 D11 DIODE SILICON 070174 D12 DIODE SILICON 070174 D13 DIODE SILICON 070174 D14 DIODE SILICON 070174 D15 DIODE SIL 400 PIV 1 5A 070031 D16 DIODE SIL 400 P...

Page 31: ...317 Q23 TRANSISTOR PNP SILICON 132304 Q24 TRANSISTOR PNP SILICON 132304 Q25 TRANSISTOR NPN SILICON 132317 Q26 TRANSISTOR NPN SILICON 132317 Q27 TRANSISTOR PNP SILICON 132304 Q28 TRANSISTOR PNP SILICON 132304 Q29 TRANSISTOR NPN SILICON 132317 Q30 TRANSISTOR NPN SILICON 132317 Q31 TRANSISTOR PNP SILICON 132304 Q32 TRANSISTOR PNP SILICON 132304 Q33 TRANSISTOR NPN SILICON 132317 Q34 TRANSISTOR NPN SIL...

Page 32: ...3 RES MF 22 1 OHM 1 1 4W 144554 R74 RES MF 1 5K 1 1 4W 144539 R75 RES MF 1 5K 1 1 4W 144539 R76 RES MF 1 5K 1 1 4W 144539 R77 RES MF 1 5K 1 1 4W 144539 R78 RES MF 1 21K 1 1 4W 144566 R79 RES MF 1 21K 1 1 4W 144566 R80 RES MF 1 21K 1 1 4W 144566 R81 RES MF 1 21K 1 1 4W 144566 R82 RES MF 475 OHM 1 1 4W 144509 R83 RES MF 475 OHM 1 1 4W 144509 R84 RES MF 475 OHM 1 1 4W 144509 R85 RES MF 475 OHM 1 1 4W...

Page 33: ...150K 1 1 4W 144627 R192 RES MF 20K 1 1 4W 144524 R193 RES MF 20K 1 1 4W 144524 R194 RES MF 1K 1 1 4W 144513 R195 RES MF 1K 1 1 4W 144513 R196 RES MF 1 5K 1 1 4W 144539 R197 RES MF 1 5K 1 1 4W 144539 R198 RES MF 10M 1 1 4W 144575 R199 RES MF 10M 1 1 4W 144575 R200 RES MF 1M 1 1 4W 144577 R201 RES MF 200K 1 1 4W 144531 R202 RES MF 267K 1 1 4W 144532 R203 RES MF 267K 1 1 4W 144532 R204 RES MF 1M 1 1 ...

Page 34: ...ILICON 070174 D3 DIODE SILICON 070174 D4 DIODE SILICON 070174 D5 DIODE SILICON 070174 DS1 LED GREEN 5MM HI INT VF V 3 5 058165 DS1 SPACER LED 112108 DS2 LED GREEN 5MM HI INT VF V 3 5 058165 DS2 SPACER LED 112108 DS3 LED GREEN 5MM HI INT VF V 3 5 058165 DS3 SPACER LED 112108 DS4 LED GREEN 5MM HI INT VF V 3 5 058165 DS4 SPACER LED 112108 DS5 LED GREEN 5MM HI INT VF V 3 5 058165 DS5 SPACER LED 112108...

Page 35: ...813 J3 XLR FEMALE VERTICAL WITH LATCH 117813 J4 XLR FEMALE VERTICAL WITH LATCH 117813 J5 XLR FEMALE VERTICAL WITH LATCH 117813 J6 XLR FEMALE VERTICAL WITH LATCH 117813 J7 XLR FEMALE VERTICAL WITH LATCH 117813 J8 XLR FEMALE VERTICAL WITH LATCH 117813 J9 CONN FFC 18PIN 117908 J10 RECEPTACLE XLR MALE 117669 J11 RECEPTACLE XLR MALE 117669 J12 RECEPTACLE XLR MALE 117669 J13 RECEPTACLE XLR MALE 117669 J...

Page 36: ...C 064453 C27 CAP MPF 0 0033UF 5 63VDC 064455 C28 CAP MPF 0 0033UF 5 63VDC 064455 C31 CAP POLYPROP 1UF 20 250VDC 064433 C32 CAP POLYPROP 1UF 20 250VDC 064433 C33 CAP ELECT 1UF 50V 066510 C34 CAP ELECT 1UF 50V 066510 C37 CAP ELECT 10UF 250V 066558 C40 CAP MPF 0 1UF 630VDC 064431 C41 CAP MPF 0 1UF 630VDC 064431 C42 CAP MONO 47PF 200V 10 NPO 061340 C43 CAP MONO 47PF 200V 10 NPO 061340 C44 CAP MONO 47P...

Page 37: ... 165065 V1 SOCKET 9 PIN TUBE CERAMIC 178170 V2 TUBE 12AX7A MCINTOSH 165065 V2 SOCKET 9 PIN TUBE CERAMIC 178170 V3 TUBE 12AX7A MCINTOSH 165065 V3 SOCKET 9 PIN TUBE CERAMIC 178170 V4 TUBE 12AX7A MCINTOSH 165065 V4 SOCKET 9 PIN TUBE CERAMIC 178170 V5 TUBE 12AX7A MCINTOSH 165065 V5 SOCKET 9 PIN TUBE CERAMIC 178170 V6 TUBE 12AX7A MCINTOSH 165065 V6 SOCKET 9 PIN TUBE CERAMIC 178170 DATA PCB 750762 6 C1 ...

Page 38: ...150058 S2 SWITCH PB TACT 150058 S3 SWITCH PB TACT 150058 S4 SWITCH PB TACT 150058 S5 SWITCH PB TACT 150058 S6 SWITCH PB TACT 150058 S7 SWITCH PB TACT 150058 S8 SWITCH PB TACT 150058 PCB PUSHBUTTON 129828 PUSHBUTTON PCB 750645 7 J2 CONN 12 PIN FFC 117907 J1 HEADPHONE JACK 1 4 117881 PC BD HEADPHONE 129674 HEADPHONE PCB 750332 Ref No Description Part No 8 6 D1 LED RGB SURFACE MOUNT 058178 D2 LED RGB...

Page 39: ...lt in shipping damage Use the original shipping carton and interior parts only if they are all in good serviceable condition If a shipping carton or any of the interior part s are needed please call or write Customer Ser vice Department of McIntosh Laboratory Refer to page 4 Please see the Part List for the correct part numbers Quantity Part Number Description 1 033888 Shipping carton only 4 03388...

Page 40: ...onstant 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 McINTOSH LABORATORY INC 2 CHAMBERS STREET BINGHAMTON NEW YORK 13903 Printed in U S A Part Number 041118 SERVICE MANUAL SERIAL NO YA1001 And Above C2300 TUBE PREAMPLIFIER ...

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