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McIntosh C2500 Service Manual

McIntosh C2500
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90
PARTS LIST cont’d.
DIGITAL AUDIO PCB 751120 (Cont’d.)
Ref No. Description Part No.
Ref No. Description Part No.
6
R174 RES SMD0805 100K 1/8W 1% 145014
R175 RES SMD0805 22.1 1/8W 1% 145003
R176 RES SMD0805 0 1/8W 0% 145016
R180 RES SMD0805 10K 1/8W 1% 145010
R181 RES SMD0805 22.1K 1/8W 1% 145012
R182 RES SMD0805 47.5K 1/8W 1% 145013
R184 RES SMD0805 47.5 1/8W 1% 145004
R185 RES SMD0805 47.5 1/8W 1% 145004
R188 RES SMD0805 47.5K 1/8W 1% 145013
S1 SWTCH TACT 1.96N 5.9 X 6MM SMD 150071
S2 SWTCH TACT 1.96N 5.9 X 6MM SMD 150071
U1 IC PROG CLOCK SYNTHESIZER SMD 133774
U2 IC SINGLE 2 INPUT NOR GATE SMD 133651
U3 IC USB 2:1 MUX SWITCH SMD 133754
U4 IC OP AMP FET INPUT DUAL SMD 133725
U5 IC 2.5V 500 MA LDO REGULAT SMD 133773
U6 IC D/A CONVERT 32 BIT 192K SMD 133757
U7 IC 32-BIT MICRO SMD 133755
U8 IC DUAL OP AMP 5532 SMD 133718
U9 IC OP AMP FET INPUT DUAL SMD 133725
U10 IC DUAL OP AMP 5532 SMD 133718
U15 IC DIG INTERFACE RECEIVER SMD 133691
U37 IC QUAD 2 TO 1 DATA SELCTR SMD 133698
U100 IC CONVE S-RATE 32BIT 192K SMD 133765
Y1 CRYSTAL OSCIL 12.0000MHZ SMD 180089
Y5 CRYSTAL OSCLTOR 25.6000MHZ SMD 180092
FIRMWARE USB AUDIO V1.00 230007
BACKUP PS PCB 751185
7
C1 CAP ELECT 3300UF 35V 066509
C2 CAP ELECT 3300UF 35V 066509
D1 DIODE SILICON 070174
D2 DIODE RECT SCHOTTKEY 2A 40V 070196
D3 DIODE RECT SCHOTTKEY 2A 40V 070196
D4 DIODE RECT SCHOTTKEY 2A 40V 070196
D5 DIODE RECT SCHOTTKEY 2A 40V 070196
F1 HOLDER FUSE 5X20MM PCB MOUNT 178159
J6 CONN 2 PIN MALE 117213
J1 CONN PCB MOUNT POWER RED 117719
J2 CONNECTOR 2 PIN HEADER 11.88MM 118026
J4 CONN PCB MOUNT POWER RED 117719
J5 CONNECTOR 3 PIN HEADER 2MM 118013
K1 RELAY 12VDC 5A 250VAC TV-4 087077
PCB1 PC BD BACKUP POWER SUPPLY 130069
R1 RES POLYSWITCH RXE030 144670
R2 RES POLYSWITCH RXE030 144670
T1 TRANSFORMER BACKUP 159376
POWER PCB 751459
8
C1 CAP POLYPROP 0.22UF 400V 20% 064438
C3 CAP ELEC 47UF 450V 066560
C4 CAP POLYPROP 0.47UF 10% 275V 064466
C6 CAP ELECT 10UF 250V 066558
C7 CAP POLYPROP 0.47UF 10% 275V 064466
C8 CAP ELECT 220UF 25V 066507
C11 CAP ELECT 4700UF 35V 066541
C17 CAP POLYPROP .047UF 10% 250VDC 064364
C18 CAP ELECT 4700UF 35V 066541
C24 CAP ELECT 10000UF 10V 066595
C25 CAP POLYPROP .047UF 10% 250VDC 064364
C103 CAP MONO .1UF 50V 20% 061346
C104 CAP MONO .1UF 50V 20% 061346
C107 CAP ELECT 220UF 50V 20% 066254
C108 CAP ELECT 220UF 50V 20% 066254
CL1 CLIP ANGLE RIGHT 414141
CL2 CLIP ANGLE RIGHT 414141
D1 DIODE ZENER 12V 400MW 070099
D2 DIODE SIL 400 PIV @ 1.5A 070031
D3 DIODE SIL 400 PIV @ 1.5A 070031
D4 DIODE SIL 400 PIV @ 1.5A 070031
D5 DIODE SIL 400 PIV @ 1.5A 070031
D6 DIODE RECT SCHOTTKEY 2A 40V 070196
D7 DIODE RECT SCHOTTKEY 2A 40V 070196
D19 DIODE RECTIFIER 1N4007 070178
D20 DIODE RECTIFIER 1N4007 070178
D21 DIODE RECTIFIER 1N4007 070178
D22 DIODE RECTIFIER 1N4007 070178
F1 FUSE 0.125A 250V SLO-BLO 089128
FH1 HOLDER FUSE 5X20 PCB MOUNT 178159
HS1 SUB HEATSINK 018751
IS1 ISOSTRATE 084196
J1 HEADER 9 CIRCUIT POST NATURAL 117724
J6 7PIN SHROUDED HEADER 117910
J7 7PIN SHROUDED HEADER 117910
J31 CONN 8 PIN 2.5MM SHROUDED 118046
PCB1 PC BD POWER 130179
Q1 TRANSISTOR NPN 60V MPSA05 132317
Q2 TRANSISTOR NPN 300V BF420 132351
Q3 TRANSISTOR NCH MOSFET 800V SMD 132353
R1 ASSY SMD POWER 710175
R2 RES CF 0 OHM 5% 1/4W 141554
R3 RES MF 221K 1% 1/4W 144629
R4 RES MF 4.99K 1% 1/4W 144521
R5 RES MF 6.49K .5% 1/4W 144617
R6 RES MF 499 OHM 1% 1/4W 144510
R7 RES MF 6.49K .5% 1/4W 144617
R8 RES MF 475 OHM 1% 1/4W 144509
R9 RES MF 221K 1% 1/4W 144629
R10 RES MF 1M 1%1/4W 144577
R11 RES MF 2.21K 1% 1/4W 144584
R12 RES MF 221K 1% 1/4W 144629
R13 RES MF 200K 1% 1/4W 144531
R14 RES MF 22.1K 1% 1/4W 144564
R15 RES MF 22.1 OHM 1% 1/4W 144554
R16 RES MF 2.21K 1% 1/4W 144584
R19 POLYSWITCH 1.85A 72V 144716
R29 POLYSWITCH RXE300 144681
R35 POLYSWITCH RXE300 144681
R195 POLYSWITCH 1.85A 72V 144716
SC1 SCR MS 6-32 X 1/4 400025
SC2 SCR MS 6-32 X 1/4 400025
U17 IC VOLTAGE REGULATOR VERI NEG 133602
U18 IC VOLTAGE REGULATOR VARI POS 133601
ASSY INS POWER 701635
TUBE PCB 751461
9
C1 CAP MONO 47PF 200V 10% NPO 061340
C2 CAP MONO 47PF 200V 10% NPO 061340

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McIntosh C2500 Specifications

General IconGeneral
Total Harmonic Distortion0.08%
Signal to Noise Ratio100dB
Rated Output Voltage2.5V unbalanced, 5V balanced
Maximum Output Voltage8V unbalanced, 16V balanced
High Level Voltage Gain15dB
TypeVacuum Tube Preamplifier
Inputs6 unbalanced, 2 balanced, 1 phono MC, 1 phono MM
Outputs3 unbalanced, 2 balanced
Weight29 lbs (13.2 kg)
Input Impedance47k ohms
Phono Voltage Gain40dB (MM), 60dB (MC)
Frequency Response+0, -0.5dB from 20Hz to 20, 000Hz +0, -3dB from 10Hz to 100, 000Hz

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