McIntosh MC830 Service Manual
  1. Manuals
  2. Brands
  3. McIntosh Manuals
  4. Amplifier
  5. MC830
  6. Service manual
McIntosh MC830 Service Manual

McIntosh MC830 Service Manual

Hide thumbs Also See for MC830:
Table of Contents

Advertisement

Quick Links

Download this manual
MC830
WATTS
LIGHTS OFF
HOLD
METER
POWER AMPLIFIER
SERIAL NO. AJN1001
REMOTE
OFF
POWER
And Above
SERVICE MANUAL
Performance Specifications ......................................... 2
Notes ................................................................................ 2
Rear Panel ....................................................................... 2
Section Locations .......................................................... 3
Block Diagram ................................................................ 4
Interconnection Diagram ............................................ 5
Main Schematic, PCB and Parts list .......................6-13
Repacking Instructions ............................................. 23
ON
MC830
CONTENTS
1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MC830 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for McIntosh MC830

Summary of Contents for McIntosh MC830

  • Page 1: Table Of Contents

    MC830 MC830 POWER AMPLIFIER SERIAL NO. AJN1001 And Above SERVICE MANUAL CONTENTS Performance Specifications ......... 2 Notes ................2 Rear Panel ............... 2 Section Locations ............3 Block Diagram ..............4 Interconnection Diagram ..........5 Main Schematic, PCB and Parts list .......6-13 Control Schematic, PCB and Parts list ....14-16...

  • Page 2: Performance Specifications

    240 Volts ~ 50/60Hz at 3.3 Amps Total Harmonic Distortion Standby, less than 0.5 watt 0.005% maximum harmonic distortion at any power level Refer to the rear panel of the MC830 for the from 250 milliwatts to rated power, 20Hz to 20,000Hz correct voltage. Intermodulation Distortion Overall Dimensions 0.005% maximum, if the instantaneous peak power...

  • Page 3: Section Locations

    MC830 SECTION LOCATIONS Top View DISPLAY Bottom View CONTROL MAIN METER LIGHT HEATSINK...

  • Page 4: Block Diagram

    MC830 BLOCK DIAGRAM POWER GUARD DIFF AMP VOLT AMP DRIVER OUTPUT OUTPUT DRIVER DETECTOR AC POWER CURRENT THERMAL TRAK CURRENT MAIN FUSE SOURCES DC BIAS LIMITERS BACKUP BACKUP DIFF AMP VOLT AMP DRIVER OUTPUT POWER POWER + 5VBU DRIVER TRANSFORMER...

  • Page 5: Interconnection Diagram

    MC830 INTERCONNECT PARTS LIST Ref. No. Description Part No. POST BINDING MEDIUM MCINTOSH 084232 POST BINDING MEDIUM MCINTOSH 084232 CABLE ASSY AC 173398 CABLE ASSY OUTPUT 173401 CABLE ASSY DC 173399 CABLE ASSY DC 173399 CABLE ASSY HEATSINK 173400 CABLE ASSY HEATSINK...

  • Page 6: Main Schematic, Pcb And Parts List

    MC830 MAIN 752555 SCH 1of 5 BACKUP PWR SUPPLY J1:1 +12V VOUT 6-32 J1:4 350mA J1:7 PRIMARY J1:10 J2:1 J2:4 J2:7 J10:2 J10:1 J2:10 AC D ET EC T OR APPLY +12VD C TO ENERGIZE MAIN PW R RELAY WITH NO AC POW ER 0.
  • Page 7 MC830 MAIN 752555 SCH 2 of 5 DIFFERENTIAL VOLTAGE 6-32 47µF L AMP 2.21M 3 G D .65µH 2.21M 3 G D + OUT OUTPUT L OU T -18V AMP MU J6:1 L PTC AMP MUTING J6:7 CURRENT SOURCE J6:5...
  • Page 8 MC830 MAIN 752555 SCH 3 of 5 DIFFERENTIAL VOLTAGE 47µF R AMP 2.21M .65µH 2.21M - OUT OUTPUT -18V R OUT AMP MU J7:1 R PTC AMP MUTING J7:7 PGND CURRENT SOURCE DRV + J7:5 R DRV + FEEDBACK 1.8V...
  • Page 9 MC830 MAIN 752555 SCH 4 of 5 1.96k 22.1 UNBALAN CED R AM P INPUT +14V1 -15V +14V1 U1:1 10µF 2.21M EN A PG ATT Vo cm BALAN CED -14V1 INPUT 221k 47pF -14V1 -14V2 1.96k 22.1 4-40 U1:2 L AM P 10µF...
  • Page 10 MC830 MAIN 752555 SCH 5 of 5 J22:1 +15V PC OU TPU T +15V DRIVER POWER CONTROL 13. 2V J22:2 +15V PC OU T PC OU TPU T DELAY R107 R114 V c c 33.2k 2.21k PC IN J21:17 PC IN...
  • Page 11 MC830 MAIN 752555 PCB...
  • Page 12 MC830 MAIN 752555 PARTS LIST Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. CAP ELECT 10UF 16V 066580 CAP MONO X7R .1uF ±20% 50V SMD 061365 CONN HEADER 2 POS 3.96MM...
  • Page 13 MC830 MAIN 752555 PARTS LIST Continued Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. RES SMD0805 332K 1/8W 1% 145039 RES MO 47 OHM .5W 5% 137102 R105 RES SMD0805 3.32K 1/8W 1%...

  • Page 14: Control Schematic, Pcb And Parts List

    MC830 CONTROL 752556 SCH 1 of 2 METER WATTS 22.1k LTS OFF HOLD MET HLD CONTROL J2:11 MET OUT J2:12 47.5k 3.32k METER J2:3 LIGHT DRIVER MET IN J1:7 J2:5 MET LT MET IN J2:6 J2:7 3.32k PANEL AMP MU...
  • Page 15 MC830 CONTROL 752556 SCH 2 of 2 +10VM +10VM U10:2 .1µF LOG AMP DRIVER AMP .47µF MET HLD 12.1k 3.32k 2700pF 100k 100k -5VM -5VM 475k +10VM 4.99k MET IN 22.1k 221k 332k U10:1 -5VM 1.58k MET OUT AMP MU 5.1V...
  • Page 16 MC830 CONTROL 752556 PCB CONTROL 752556 PARTS LIST Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. CAP MONO X7R .1uF ±20% 50V SMD 061365 CONN 12 PIN FFC SMD 118001 RES TF 221K .125W .5% SMD0805...

  • Page 17: Heatsink Schematic, Pcb And Parts List

    MC830 HEATSINK 752561 SCH +55V J2:2 +55V +55V 100pF -55V J2:1 Q9:2 Q7:2 -55V 1.8V 5.75 in DRIVER 1µF 1µF ISO 5.700 X 1.010 1.2V 6-32 X 7/16 Q5:1 .1µF OUTPUTS 6-32 X 7/16 6-32 X 7/16 Q7:1 6-32 X 7/16...
  • Page 18 MC830 HEATSINK 752561 PCB...
  • Page 19 MC830 HEATSINK 752561 PARTS LIST Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. CAP MONO X7R .1uF ±20% 50V SMD 061365 STANDOFF PCB 0.144DIA X 0.188L 412186 RES MO 1.8k .5W 5%...

  • Page 20: Display Schematic, Pcb And Parts List

    MC830 DISPLAY / METER LIGHT 752557 SCH PAN LTS J1:11 PAN LT J1:12 POWER GUARD 56.2k 56.2k 56.2k 56.2k 56.2k 56.2k 56.2k 56.2k 56.2k 56.2k 56.2k 56.2k 5.62k PG LT J1:9 PG LT DS14 DS10 DS11 DS12 DS13 STANDBY 8.25k J1:10 56.2k...
  • Page 21 MC830 DISPLAY / METER LIGHT 752557 PCB...
  • Page 22 MC830 DISPLAY / METER LIGHT 752557 PARTS LIST Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. Ref. No. Description Part No. DS32 LED GRN REV MOUNT SMD 058222 RES SMD0805 56.2K 1/8W 1% 145034 RES SMD0805 56.2K 1/8W 1%...

  • Page 23: Repacking Instructions

    REPACKING INSTRUCTIONS When shipping the MC830, it is highly recommended that the unit be packed as it was originally shipped to avoid damage. Failure to properly pack the unit will likely result in damage. (The front panel is made of glass!) If you need any of the packing material, you can contact McIntosh Customer Service. Use only packing...
  • Page 24 OUTPUT FUSE T8AL 250V T8AL 250V PUSH of McIntosh Laboratory Incorporated, who reserve the CLASS 2 WIRING CLASS 2 WIRING right to improve design without notice. Because of the constant upgrading of McIntosh products’ circuitry and components, the Company cannot insure, and does not...

Table of Contents