Mackie FR Series User manual

M1400, M1400i
FR series amplifiers (series II)
SERVICE MANUAL
2000 MACKIE DESIGNS, INC.
Service Bulletins

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

3
CONTENTS
Introduction..................................................................... 3
Overview.......................................................................... 4
Safety test ........................................................................ 5
Service bulletins ............................................................... 6
Parts................................................................................... A-1
Fold-out Sections
Amplifier board .......................................................... 255-1
Input board ................................................................ 253-1
Displayboard.............................................................. 254-1
Soft Start board ......................................................... 162-1
Main Assembly Drawings .......................................... Assembly-1
Amplifier Sub-assembly Drawings............................ Sub-1
INTRODUCTION
• What’s all this “series II” stuff anyway?
The designation “series II” is an internal Mackie way of describing the new M1400 and
M1400i amplifiers built after June 1999. You will not see “series II” written on any of the
advertising, boxes or silkscreens. One clue is that the series II amps do not have handles.
The serial number prefix also indicates if the amplifier is a series I or II:
The M1400 Series I serial numbers start with a prefix “AH,” (use the other M1400 service manual)
The M1400 Series II serial numbers start with a prefix “DB” (use this manual)
M1400iSeriesI serialnumber prefixis “AM”(use the otherM1400 servicemanual)
M1400i Series II serial number prefix is “DA” (use this manual)
This manual contains basic service information. It is essential that you have a copy of the
user’s manual as this contains the complete operating instructions.
SERVICE TECHNICAL ASSISTANCE
MackieDesigns, Service TechnicalAssistance, isavailable 8AM- 5PMPST, Mondaythrough
Friday for Authorized Mackie Service Centers, at 1-800-258-6883. Feel free to call with any
questions and speak with a carefully-calibrated technician. If one is not available, leave
a detailed message and a qualified Mackoid will return your call asap.
DISCLAIMER
The information contained in this manual is proprietary to Mackie Designs, Inc. The entire
manual is protected under copyright and may not be reproduced by any means without
express written permission from Mackie Designs, Inc.
SERVICE ON THIS EQUIPMENT IS TO BE PERFORMED BY
EXPERIENCED REPAIR TECHNICIANS ONLY
Click on any item to open that page
ALL BOARDS

4
Overview
M1400 and M1400i power amps built after June 15, 1999 have some rather lovely
improvements. These include:
1. Higher output fan for increased cooling – The old fan which has an output of 51 CFM has
been replaced with a new hi-performance Panasonic FBA0824H1T fan that has 62 CFM
output. This improves the M1400/1400i’s cooling capacity by 20%, allowing them to run in
an environment 14°F hotter than previously without overheating.
2. Higher voltage tolerance – the four main filter capacitors have been increased in
voltage rating from 80V to 82V. This improves the ability of the M1400/1400i to handle
installations and gigs where the AC line voltage is higher than normal.
3. Improved speaker protection circuitry – Previously, under certain unusual conditions,
(such as the SeaHawks winning an away game), the protection circuits could shut down
the amplifier. The circuit is redesigned so instead of shutting down, the amplifier will
mute for two seconds and then begin operation again.
4. Other improvements– The new designs have improved reliability by changing the design
surrounding the driver transistors, specifying higher quality main 30A bridges, removing all
soldered-in multi-pin cable assemblies in favor of more reliable (and more expensive)
header to receptacle interconnections, increasing the robustness of the +/-16V power
supplies, and redesigning the baker clamp for improved high power operation.
5. New circuit boards– The new designs have new circuit boards.
6. Handles Removed– The new designs have no handles on the front panel. This is also a
quick way of telling if the amplifier is a series II design or not.
7. Service Manual– The old service manual contains many details which still apply, such as
circuit theory and troubleshooting. This series II manual is just a basic guide to the new
schematics, pcbs, assembly drawings and parts lists.
8. Owner’s Manual– The owner’s manual was only mildly altered to reflect the new model,
so all details of the amplifier’s operation are correct.
9. Service bulletin– The ribbon modification still applies to the “series II” models. See the last
page of this service manual.

5
You must perform the following leakage test before returning the unit to your customer.
Take every safety precaution to protect yourself while doing this test.
1. Make a small loading RC circuit as shown in the diagram below, and connect the AC
volt meter between the AC power source ground and any exposed metal on the 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 750mVAC (note: this is equivalent to 0.5mA of
leakagecurrent).
4. Flip the plug over in the receptical so the hot and neutral are swapped.
Verify that the reading is still less then 750mVAC.
5. If either reading is greater than 750mVAC, then you must investigate and repair the unit
before returning it to your customer.
Safety test

A- 1
M1400, M1400i series II
PART# DESCRIPTION PAGES
090-137-XX M1400assembly A-2
080-149-00 Heatsink subassembly A-3
090-134-00 M1400iassembly A-4
080-143-00 Heatsink subassembly A-5
055-253-00 Input board A-6
055-254-00 Displayboard A-7
055-255-00 Amplifier board A-8
055-162-00 Soft Start board A-11
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.

A- 2
M1400, M1400i series II
Master Parts List 090-137-XX M1400 series II
Part # Description Rev Qty
090-137-00 M1400 SERIES II 120V A6 A2 1
090-137-01 M1400 SERIES II 230V A6 A2 1
090-137-02 M1400 SERIES II 100V A6 A2 1
040-359-00 RIB 28GA 20C 4.25IN PLZD C 1
040-360-00 RIB 28GA 20C 18IN PLZD C 1
055-162-01 PCB ASSY SOFT START 240V A1 1 FOR 240VAC VERSION. SEE PAGE 11
055-162-02 PCB ASSY SOFT START 100V A1 1 FOR 100VAC VERSION. SEE PAGE 11
055-253-00-01 PCB ASSY INPUT A2 A2 1 SEE PAGE 6
055-254-00-01 PCB ASSY DISPLAY A2 A2 1 SEE PAGE 7
080-035-00 PWR SW HARNESS - AMP A 1
080-149-00 SA HTSK M1400 SERIES II A6 A2 1
080-154-00 SA XFMR 120V 1400/1400 I A1 A1 1 FOR 120VACVERSION
080-154-01 SA XFMR 230V 1400/1400 I A1 A1 1 FOR 230VACVERSION
080-154-02 SA XFMR 100V 1400/1400 I A1 A1 1 FOR 100VACVERSION
500-022-00 SWITCH, ROCKER ILLUMINATED A 1
510-017-00 FUSE SB 20A 3AB 1/4X1-1/4 A 1 FOR 120VAC AND 100VAC VERSIONS
510-023-00 FUSE SB 8A 3AB 1/4X1-1/4 A 1 FOR 230VACVERSION
550-247-00 SHIELD INPUT - M1200 A 1
550-249-00 PLATE XFMR .335IDX4.528OD A AR
550-294-00 BRACKET FOR SOFT START A 1 FOR 230VAC AND 100VAC VERSIONS
550-470-00 PNT CHASSIS M1400-PRO A 1
550-564-00 PNT TOP COVER M1400-I-PRO A 1
550-566-00 PNT SIDE RIGHT M1400-I-PR A 1
550-568-00 PNT LEFT SIDE M1400-I-PRO A 1
551-029-10 EXTR SCRN DSPLY BZL-M1400 D 1
640-006-00 LC 15A 125V SJT 14GA 6FT7 D 1 LINECORD FOR 120VACVERSION
640-007-02 LCEXPORT - JAPANESE D 1 LINECORD FOR 100VACVERSION
640-007-01 LCEXPORT - EUROPEAN D 1 LINECORD FOR 230VACVERSION
700-011-00 MCH 4-40X1/4 BTNSKT BLKOX A 6
700-028-01 SEMS 6-32X5/16 PHP BLKZC B 36
700-041-04 MCH 6-32X3/8 FL 100DG BLK A 8
700-050-04 MCH 6-32X3/8 FIL PHL CLR A 2
700-085-03 SCR PHP M3X6 STL BLK ZC A 4
700-086-00 TF 6-32X3/8 FL 100DG BLK A 3
700-106-00 BOLT HEX 5/16X23/4 ZC GD5 A 1
701-016-00 5-20X5/16 PHPII TYP B BLK A 8
701-022-01 #4X5/16 PHP II TYP B BLK B 4
705-001-00 KEPNUT 6-32 A 2
705-019-00 NUT STOVER LOCK 5/16X18 A 1
710-002-00 WASHER-SPLD W/400-214-00 A AR
710-024-00 WASH FLAT 5/16 HARD (USS) A 2
730-016-00 LOCTITE 242 A AR
730-026-00 ADHESIVE RTV162 A AR
740-001-00 TYRAP 3-1/4L A 2
740-003-00 TYRAP 8IN BLK A 2
740-004-00 STRAIN RELIEF HEYCO 1244 A 1
760-048-04 KNOB 9MM DARK GRAY B 4
760-061-00 KNOB VOLUME AMPS A 2
780-042-00 INSUL MYLAR INPUT SHIELD A 1
780-111-00 WASH RUB (W/TRANSFORMER) A 2
790-002-00 BAG POLY 12 X 18 2MIL A 1
790-022-00 POLY-SHEET 52CF X 26 4MIL A 1
800-160-00 BOX M1400 SER II A 1
800-161-00 M1400 BOX SLEEVE SER II A 1
810-056-00 INST TOP/BOTTOM - AMP 2
820-062-11 OWN MNL M1400 A 1
Components noted with this symbol shall be replaced only by the component specified.
This is required to maintain product safety.

A- 3
M1400, M1400i series II
Part # Description Rev Qty
080-149-00 SA HTSK M1400 SERIES II A6 A2 1
040-209-00 RIB 28GA 10C 11.5 PLZD C 1
055-255-01-01 PCB ASSY MAIN M1400 A6 A2 1 SEE PAGE 8. THIS HAS SPEAKON OUTPUTS
220-059-00 LYT 12000UF 20% 82V 35X60 A 4 NOTE THAT THIS IS 12,000 UF
400-083-00 2P .100X1 22GA END B 1
410-003-00 INSL SILPAD K6 W/ADHESIVE A 8.2
410-006-00 INSL SILPAD W/O ADHESIVE B 1
550-237-00 SPRING CLIP SUBSINK-M1200 A 2
550-255-00 PIGGYBACKCLIP A1 1
550-467-00 BRKT SUBSINK M1400 PRO A 2
550-468-00 COWLING HTSINK M1400 PRO A 1
550-469-00 BRKT FAN M1400 PRO A 1
551-085-00 EXTR FAB HEATSINK M1400PR A 1
700-010-00 TF 6-32X1/4 PHP BLKZC A 3
700-010-04 TF 6-32X3/8 PHP BLKZC A 8
700-028-02 SEMS 6-32X3/8 PHP BLKZC B 10
700-087-00 TF 4-40X5/8 TORX 1/4 WASH A 5
700-088-00 TF 4-40X5/8 TORX 3/8 WASH A 18
700-122-00 SS-8-32X1/4 PHP PH BLK OX 4
705-024-00 NUT 8-32 SMALL DIA A 4
710-013-00 WASH FLAT NO.6 FIBRE A 4
730-001-00 THERMALJOINTCOMPOUND A AR
730-003-00 ADHESIVE INDSTRL 3M 4799 A AR
730-025-00 LOCTITE 222 A AR
730-026-00 ADHESIVE RTV162 A AR
770-007-00 FAN 80MM 24VDC-PANASONIC B 1
780-136-00 FOAM INSL FAN M1400 II A 1
Heatsink sub assy 080-149-00
Components noted with this symbol shall be replaced only by the component specified.
This is required to maintain product safety.

A- 4
M1400, M1400i series II
Part # Description Rev Qty
090-134-00 M1400-I SERIES II 120V A6 A2 1
040-359-00 RIB 28GA 20C 4.25IN PLZD C 1
040-360-00 RIB 28GA 20C 18IN PLZD C 1
055-253-00-01 PCB ASSY INPUT A2 A2 1 SEE PAGE 6
055-254-00-01 PCB ASSY DISPLAY A2 A2 1 SEE PAGE 7
080-035-00 PWR SW HARNESS A 1
080-143-00 SA HTSK M1400-I SERIES II A6 A2 1 SEEPAGE 5
080-154-00 SA XFMR 120V 1400/1400 I A1 A1 1
500-022-00 SWITCH, ROCKER ILLUMINATED A 1
510-017-00 FUSE SB 20A 3AB 1/4X1-1/4 A 1
550-247-00 SHIELD INPUT - M1200 A 1
550-249-00 PLATE XFMR .335IDX4.528OD A AR
550-564-00 PNT TOP COVER M1400-I-PRO A 1
550-565-00 PNT CHASSIS M1400-I-PRO A 1
550-566-00 PNT SIDE RIGHT M1400-I-PR A 1
550-568-00 PNT LEFT SIDE M1400-I-PRO A 1
551-029-20 EXTR SCRN DSPL BZL M1400I D 1
640-006-00 LC 15A 125V SJT 14GA 6FT7 D 1 LINECORD
700-011-00 MCH 4-40X1/4 BTNSKT BLKOX A 6
700-028-01 SEMS 6-32X5/16 PHP BLKZC B 36
700-041-04 MCH 6-32X3/8 FL 100DG BLK A 7
700-050-04 MCH 6-32X3/8 FIL PHL CLR A 2
700-085-03 SCR PHP M3X6 STL BLK ZC A 4
700-086-00 TF 6-32X3/8 FL 100DG BLK A 3
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 KEPNUT 6-32 A 2
705-003-00 NUT HEX-SPLD W/400-214-00 A AR
705-015-00 NUT SLOT NCKL A 2
705-019-00 NUT STOVER LOCK 5/16X18 A 1
710-002-00 WASHER-SPLD W/400-214-00 A AR
710-019-00 WASH FIBRE BLK A 2
710-024-00 WASH FLAT 5/16 HARD (USS) A 2
730-016-00 LOCTITE 242 A AR
730-026-00 ADHESIVE RTV162 A AR
740-001-00 TYRAP 3-1/4L A 2
740-003-00 TYRAP 8IN BLK A 2
740-004-00 STRAIN RELIEF HEYCO 1244 A 1
750-001-00 BUMPON ROUND BLK .63X.31 A 4
760-048-04 KNOB 9MM DARK GRAY B 4
760-061-00 KNOB VOLUME AMPS A 2
780-042-00 INSUL MYLAR INPUT SHIELD A 1
780-111-00 WASH RUB (W/TRANSFORMER) A 2
790-002-00 BAG POLY 12 X 18 2MIL A 1
790-022-00 POLY-SHEET 52CF X 26 4MIL A 1
800-158-00 BOX M1400-I SERIES II A 1
800-159-00 M1400I BOX SLEEVE SER II A 1
810-056-00 INST TOP/BOTTOM - AMP 2
820-062-14 OWN MANUAL M1400I ENGDOMA 1
Master Parts List 090-134-00 M1400i series II, 120v
Components noted with this symbol shall be replaced only by the component specified.
This is required to maintain product safety.

A- 5
M1400, M1400i series II
Part # Description Rev Qty
080-143-00 SA HTSK M1400-I SERIES II A6 A2 1
040-209-00 RIB 28GA 10C 11.5 PLZD C 1
055-255-02-01 PCB ASSY MAIN M1400-I A6 A2 1 SEE PAGE 8. THIS HAS 1/4” OUTPUTS
220-058-00 LYT 10000UF 20% 82V 35X60 A 4 NOTE THAT THIS IS 10,000 UF
400-083-00 2P .100X1 22GA END B 1
410-003-00 INSL SILPAD K6 W/ADHESIVE A 8.2
410-006-00 INSL SILPAD W/O ADHESIVE B 1
550-237-00 SPRING CLIP SUBSINK-M1200 A 2
550-255-00 PIGGYBACKCLIP A1 1
550-467-00 BRKT SUBSINK M1400 PRO A 2
550-468-00 COWLING HTSINK M1400 PRO A 1
550-469-00 BRKT FAN M1400 PRO A 1
551-085-00 EXTR FAB HEATSINK M1400PR A 1
700-010-00 TF 6-32X1/4 PHP BLKZC A 3
700-010-04 TF 6-32X3/8 PHP BLKZC A 8
700-028-02 SEMS 6-32X3/8 PHP BLKZC B 10
700-087-00 TF 4-40X5/8 TORX 1/4 WASH A 5
700-088-00 TF 4-40X5/8 TORX 3/8 WASH A 18
700-122-00 SS-8-32X1/4 PHP PH BLK OX 4
705-024-00 NUT 8-32 SMALL DIA A 4
710-013-00 WASH FLAT NO.6 FIBRE A 4
730-001-00 THERMALJOINTCOMPOUND A AR
730-003-00 ADHESIVE INDSTRL 3M 4799 A AR
730-025-00 LOCTITE 222 A AR
730-026-00 ADHESIVE RTV162 A AR
770-007-00 FAN 80MM 24VDC-PANASONIC B 1
780-136-00 FOAM INSL FAN M1400 II A 1
Heatsink sub assy 080-143-00
Components noted with this symbol shall be replaced only by the component specified.
This is required to maintain product safety.