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Mackie M-800, Service Manual, Page: 17 / 22

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Mackie M-800 Service Manual Download Page 17

A-1

PART#

DESCRIPTION

PAGES

090-107-00 Master Parts

A-2

080-105-00 Heatsink subassembly

A-3

055-212-00 Main Board

A-4

055-218-00 Display Board

A-6

M800 PARTS LIST

Parts Numbering guide

040-

Cables

055-

Finished PCB Assy

100-

Pots and resistors

200-

Capacitors

300-

Semiconductors

400-

Jacks/Connectors

500-

Switches

510-

Fuses

550-

Chassis Metalwork

600-

Transformers

601-

Inductors

610-

Wires and Cables

640-

AC line cords

700-

Hardware

760-

Knobs/Plastic

770-

Fans

790-

Misc./Packing

800-

Printed Material

860-

EPROM

Components  noted with this symbol shall be replaced only by the component specified.
This is required to maintain product safety.

Click on any item to open that page

Summary of Contents for M-800

Page 1: ...PICAL TYPICAL STEREO MONO BRIDGE 800 WATTS 4 OHM LOAD MIN 400 WATTS CH 2 OHMS LOAD MIN THRU LOW CUT FILTER INPUT INPUT THRU 170 Hz OFF 4 5k Hz 6k Hz 2k Hz AIR EQ TYPICAL 35 Hz CONSTANT DIRECTIVITY HOR...

Page 2: ...2 SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY EXPERIENCED REPAIR TECHNICIANS ONLY...

Page 3: ...NICAL ASSISTANCE Mackie Designs Service Technical Assistance is available 8AM 5PM PST Monday through Friday for Authorized Mackie Service Centers at 1 800 258 6883 Feel free to call with any questions...

Page 4: ...TECT METER DRIVE AMP AMP 64VDC 64VDC 74VDC 74VDC 64VDC 64VDC 74VDC 74VDC OL 3 6 9 20 METER DRIVE OL 3 6 9 20 MUTE MUTE THRU XLR M CH 2 BALANCED LINE INPUT TRS CH 2 BALANCED LINE INPUT XLR F THRU XLR M...

Page 5: ...THD Power Bandwidth 20Hz to 70kHz 0 3 dB Frequency Response 20Hz to 40kHz 0 1 dB 10Hz to 70kHz 0 3 dB Distortion SMPTE IMD TIM 250mW to rated power 0 025 8 0 05 4 0 15 2 Signal to Noise Ratio 104 dB b...

Page 6: ...fica tions at any time without notice Owner s manual addendum NOTE The specifications are from the owner s manual ad dendum and not from the initial release of the owner s manual Since the owner s man...

Page 7: ...SEND 2 8 RTN 2 10 64V 12 14 1 3 5 7 9 11 13 AMP OUT 2 16V SEND 1 AMP IN 1 OVERTEMP AMP OUT 1 BIAS T P FAN J7 BIAS T P TRANSFORMER SECONDARIES R51 BIAS ADJUST J4 J10 J13 J16 J14 FUSE F1 J15 J18 J17 J3...

Page 8: ...if you change any fusible resistors you must use identical replacement parts Check the VI limiters and detectors It is not uncommon to damage these parts when the amplifier fails in a spectacular way...

Page 9: ...unit under test 2 Connect the unit under test to an AC power source using a ground lift adaptor leaving the unit s safety ground floating Turn the unit on 3 The meter reading should be less than 750mV...

Page 10: ...scribed above Add the 0 1uF capacitive loading and verify clipping is still well behaved 6 Individually load Channel 1 and Channel 2 with 2 Clipping should be symmetrical well behaved and occur somewh...

Page 11: ...mproved linearity intrinsically lower distortion In the event of a catastrophic amplifier failure the triple darlington output stage is peppered with several fusible resistors to minimize damage Q6 an...

Page 12: ...the voltage drop across R100 and R109 D41 D44 allow the second stage quiescent current to remain constant as temperature changes The first stage is fully complimentary and differential in design Over...

Page 13: ...which in turn decreases the LDR s resistance U2B Since R146 and U2B form a voltage divider as U2B s resistance decreases the drive to the power amp decreases limited Negative clipping activates the L...

Page 14: ...ne high With U4 10 high the output of U4 13 goes low allowing the fan to run fast AMPLIFIER MUTING The amplifier is muted in the following instances At turn on C79 is low at turn on and is charged by...

Page 15: ...070 00 OL HOT LED GREEN 304 071 00 OL 3 6 9 20 3 6 9 20 OL 28 26 24 18 20 16 22 14 12 6 0 0 1 23v 4dBu SENSITIVITY GAIN dB 1 23v 4dBu SENSITIVITY GAIN dB NORM HOT SIG CH STATUS 1 2 3v 2v 1v 28 26 24...

Page 16: ...16...

Page 17: ...esistors 200 Capacitors 300 Semiconductors 400 Jacks Connectors 500 Switches 510 Fuses 550 Chassis Metalwork 600 Transformers 601 Inductors 610 Wires and Cables 640 AC line cords 700 Hardware 760 Knob...

Page 18: ...6 32X3 8 FL 100DG BLK A 7 700 085 03 SCR PHP M3X6 STL BLK ZC A 4 700 086 00 TF 6 32X3 8 FL 100DG BLK A 4 700 106 00 BOLT HEX 5 16X23 4 ZC GD5 A 1 701 016 00 5 20X5 16 PHPII TYP B BLK A 8 705 001 00 KE...

Page 19: ...A 6 710 036 00 WASH FLT STL NO 4 030THK A 3 730 001 00 THERMAL JOINT COMPOUND A AR as required 730 003 00 ADHESIVE INDSTRL 3M 4799 A AR 080 139 00 SA XFMR M800 120V 60HZ C2 1 120v units 080 139 01 SA...

Page 20: ...R79 82 R85 R90 R93 96 140 104 00 RESISTOR TF SMT 20K 5 R151 R159 R173 140 111 00 RESISTOR TF SMT 36K 5 R152 R158 R174 175 R179 R196 140 118 00 RESISTOR TF SMT 68K 5 R178 140 119 00 RES TF SM 1W 5 75K...

Page 21: ...8 69 300 003 00 DIODE SIGNAL SMD DL4148 D5 6 D8 9 D11 12 D14 15 D21 32 D40 45 D48 58 D60 66 D68 69 D74 D77 88 300 010 00 DIODE SIGNAL SMD RLS245 D1 4 D67 D75 76 301 010 00 DIODE POWER 1N5404 D17 20 30...

Page 22: ...BT4403 Q1 2 320 012 00 OPAMP NJM4560M NJM4560M U1 U5 323 002 00 I C QUAD COMPARATOR SMD LM339 U2 4 400 079 00 CONNECTOR STR LCK SHRD 14P 100 X 2 J1 450 218 00 PCB M800 DISPLAY Z8 706 033 08 STANDOFF S...

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