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SR40•8 +12V Fuse Upgrade BC 4/20/98

THE MIXER FIXER • MACKIE DESIGNS SERVICE NEWS

SR 40•8 +12V Power Supply Fuse Upgrade:

Model:

SR40/56•8 440W Power supplys

Serial #:

Prior to SN#AD14392

Effective 4/20/98

Symptom: No +12V Power LED’s or no power to the Little Light outlets.

Solution:

Replace F8 (1.6A Fuse) with a 3.15A 5X20MM 250V (Part # 510-026-00).

Содержание SR40.8

Страница 1: ...SR40 8 SR56 8 SERVICE MANUAL VERSION 1 1 1997 1999 MACKIE DESIGNS INC 820 176 00 Page 3 is interactive Go To Bulletins...

Страница 2: ...sent appare il num rique n m et p as de bruits radio lectrique s d p assant las lim ites applicables aux appareils num riques de class A de class B selon le cas prescrites dans le r glem ent sur le br...

Страница 3: ...IRCUITRY 14 SOLO CONTROL CIRCUIT 15 INPUT SOLO LOGIC 16 OUTPUT SOLO LOGIC 16 OTHER MATTERS 17 CLEAR COM INTERFACE 18 CIRCUIT DESCRIPTION 18 TRANSMIT SIGNAL PATH 19 RECEIVE SIGNAL PATH 19 CALL SIGNAL 1...

Страница 4: ...tation of this manual does not constitute endorsement of qualifications by Mackie Designs SERVICE TECHNICAL ASSISTANCE Mackie Designs Service Technical Assistance is available 8AM 5PM PST Monday throu...

Страница 5: ...enabling them to be used as master faders for submixes of channels Alternatively the subs can be used for secondary speaker systems More output routing options involve the matrix discussed below MATR...

Страница 6: ...nd assign B aux returns B1 B2 and B3 are dedicated to the left right mix and offer only rotary level and mute switch controls Aux return B4 is dedicated to the center mix Additionally there are two st...

Страница 7: ...ux sends and matrices These mutes may be activated in four ways By pressing the local mute switch included for each path by assigning paths to a mute group by assigning paths to a mute snapshot or by...

Страница 8: ...s and decrements Snapshots in the Numeric Display In Snapshot Mode press and hold the CLEAR and Arrow Up buttons to enter Auto Increment Load and Go mode Then press the DO IT button to engage consecut...

Страница 9: ...splay In Auto Increment Mode press to advance to the next Snapshot In Preview Mode press DO IT to engage the Group or Snapshot selected NUMBER BUTTONS 0 9 In Group Mode press number buttons to select...

Страница 10: ...ETURN B1 B2 B3 B4 ID EN TIC AL LIN E IN L LIN E IN R TAPE A IN TAPE B IDEN TIC AL LIN E IN L LIN E IN R AUX RETURN B4 O N LY L LEFT M AIN M IX R RIG HT M AIN M IX C C EN TER M AIN M IX FO R SIM PLIC I...

Страница 11: ...TER SO LO RELAY M ETER A FL PFL RELAY TO M ATRIX IN C EN TER O UT R M IX SO LO SO LO C M IX SO LO C FADER M ETERS O UTPUTS PFL AFL M ETERS IN P UTS PFL AFL SO LO LO G IC SO LO INPUTS PFL AFL SO LO O...

Страница 12: ...es Mic preamp input 2 4k All other inputs except inserts bal 10k RCA outputs 3 3k All other outputs balanced 240 unbalanced 120 Equalization Low EQ shelving 15dB 80Hz Low Mid EQ 1 5 octave bandwith Mo...

Страница 13: ...noise to a minimum Mackie mixers employ VLZ architecture In VLZ or Very Low Impedance architecture internal impedances are kept as low as practical in as many places as possible Resistor values are sc...

Страница 14: ...upling caps C111 112 R114 115 provide a 20dB pad when using the TRS input Both inputs are clamped to within 12V of ground by D101 102 PREAMP CIRCUITRY On the channel board further RF rolloff is provid...

Страница 15: ...aux sends 1 8 left center right and matrices A D Separate push switches select between pre fade listen PFL and after fade listen solo in place AFL SIP or just AFL There is one switch for the input sol...

Страница 16: ...NTL IP is high controlling analog switches U1211D U1211C U3C U3D and U3A U1211 delivers input solo signals to the headphone system U3 delivers input solo signals to the LCR meters OUTPUT SOLO LOGIC At...

Страница 17: ...s out of phase with the solo LEDs at any of the solo switches that is they alternate D11 couples the LCR MUTE line to U2D ensuring that the RSL is extinguished when nothing is soloed the resting state...

Страница 18: ...e There is no possibility of a ground loop regardless of who supplies the intercom system and where they get their ground from CIRCUIT DESCRIPTION Refer to the MASTER PCB schematic The Clear Com inter...

Страница 19: ...imal load to signals coming from the line Another input to the diffamp s inverting input comes from the current source op amp but prior to the current sensing resistor R1807 The two signals are subtra...

Страница 20: ...monitors the state of the ignore timer C144 and R1899 via analog switch U1801 16 and Q1807 IGNORE SWITCH Rev A and higher PCBs If the SR40 8 shares the intercom line with the lighting company there i...

Страница 21: ...04 E1805 to lower bridge E1805 E1806 to raise it Try 4k7 for starters See schematic Not present Normal sidetone cancellation is about 10 dB More cancellation than this is highly dependent on the inter...

Страница 22: ...ata from shift register parallel inputs 5 FET DATA Serial data for all FET analog sw itches 6 LOAD FET Updates FET data to shift register parallel outputs 7 CLOCK Serial clock for sw itch data 8 n c 9...

Страница 23: ...A13 NVRAM 24C65 MUTE CONTROL BOARD MUTE SW ITCH BOARD OUTPUT DIGITAL BOARD LAST CHANNEL BOARD PREVIOUS CH S LED DATA LOAD LED P CLOCK FET DATA LOAD FET SW ITCH DATA LOAD SW ITCH CLOCK ULTRAMUTE SERIAL...

Страница 24: ...h is depressed 6 Individually press all Ultramute control switches sequence not relevant Switch s corresponding LED lights while switch is depressed bottom row switches light same LED s as top row 7 D...

Страница 25: ...01 3 00 SW ITCH 500 018 00 M U T E BUTTO N 7 60 01 1 00 SW ITCH 500 020 00 LE D 30 4 027 0 2 B U S A S S IG N S BUTTO N 7 60 01 3 00 SW ITCH 500 018 00 S O L O BUTTO N 7 60 01 1 00 SW ITCH 500 012 00...

Страница 26: ...TO N 7 60 01 3 0 0 SW ITCH 500 0 18 00 AI R 10 KB PO T 1 30 02 2 02 KN OB 760 048 03 S U B A S S IG N S BU TTO N 7 60 01 3 0 0 SW ITCH 500 0 18 00 S U B P A N S 10KA C POT 130 06 5 0 2 KN OB 760 04 8...

Страница 27: ...760 024 00 R IG H T FA D E R 10K Dx2 PO T 130 035 00 KNOB 760 024 01 S O L O BU TTO N 760 011 00 SW ITCH 500 012 00 LED 304 027 02 R E C E IV E 50KG PO T 130 003 02 KNOB 760 048 01 IG N O R E BUTTO N...

Страница 28: ...28...

Страница 29: ...10 710 012 00 FLAT WASHER 10 HANDLES 11 712 033 00 FERRULE 12 712 032 00 HANDLES 13 400 126 00 XLR JACK TALKBACK MIC PRE ASSEMBLED 14 550 213 00 JACK PLATE PRE ASSEMBLED A 700 028 00 SCREW SEMS 6 32X...

Страница 30: ...30...

Страница 31: ...STER SECTION 6 550 191 00 BACK PANEL 16 CH 7 040 130 00 CABLE ASSY BLK 9 NOT SHOWN 8 040 131 00 CABLE ASSY GRN 3 5 NOT SHOWN 9 400 127 00 XLR LAMP JACK 10 550 194 00 NUTPLATE LAMP JACKS A 700 028 00 S...

Страница 32: ...32...

Страница 33: ...0 RIBBON CABLE ASSY 34C 16 5 040 015 00 RIBBON CABLE ASSY 34C 10 6 055 074 00 PCB ASSY MASTER OUTPUT 7 040 093 00 RIBBON CABLE ASSY 40C 9 5 8 040 103 00 RIBBON CABLE ASSY 10C 5 9 055 067 00 PCB ASSY M...

Страница 34: ...34...

Страница 35: ...0C 20 5 040 098 00 RIBBON CABLE ASSY 34C 27 6 040 099 00 RIBBON CABLE ASSY 26C 9 5 7 040 104 00 RIBBON CABLE ASSY 34C 16 8 040 105 00 RIBBON CABLE ASSY 34C 10 9 055 073 00 PCB ASSY MASTER POD A 701 00...

Страница 36: ...36...

Страница 37: ...RIBBON CABLE ASSY 14C 2 15 040 133 02 RIBBON CABLE ASSY 3C 16 16 040 192 00 RIBBON CABLE ASSY 50C 17 040 091 00 RIBBON CABLE ASSY 24C 18 040 094 00 RIBBON CABLE ASSY 5C 77 19 040 132 00 RIBBON CABLE...

Страница 38: ...38...

Страница 39: ...END CAP 4 700 043 15 SCREW TF 10 32X1 1 2 END CAP 5 700 045 04 SCREW SEMS 10 32X3 8 END CAP 6 780 028 00 METER LENS 7 760 60 20 ENDCAP LEFT 8 550 195 00 BOTTOM COVER 9 700 028 02 SCREW SEMS 6 32X3 8...

Страница 40: ...40...

Страница 41: ...MM 250V 550 214 00 SMTL TOP COVER PS SR40 8 550 215 00 SMTL BOTTOM COVER PS SR40 8 550 216 10 SMTL SIDE RAIL RIGHT PS SR40 8 550 216 20 SMTL SIDE RAIL LEFT PS SR40 8 550 217 00 SMTL BRKT HEATSINK PS S...

Страница 42: ...F SM 1W 5 4K7 OHM 140 090 00 RES TF SM 1W 5 5K1 OHM 140 091 00 RES TF SM 1W 5 5K6 OHM 140 092 00 RES TF SM 1W 5 6K2 OHM 140 094 00 RES TF SM 1W 5 7K5 OHM 140 095 00 RES TF SM 1W 5 8K2 OHM 140 097 00 R...

Страница 43: ...0V TR 200 008 02 PLY 0039UF 10 100V TR 200 014 00 PLY 0033UF 10 100V 200 015 02 PLY 0047UF 10 100V PEI 200 019 02 PLY BX 1UF 10 63V TR 200 021 02 PLY 027UF 10 100V TR 211 001 00 CER 01UF 80 20 25V AX...

Страница 44: ...MALL 400 123 00 HDR 4P 156X1 STR 400 126 00 XLR 3P FEMALE P SERIES 400 127 00 XLR 4P FEMALE P SERIES 400 139 00 SHUNT 2P 100 400 146 00 HDR 5P 156X1 STR LOCK 400 147 00 HDR 26P 1X2 STR LK SHRD 400 152...

Страница 45: ...2 00 HDL 1 7 8H 5L 1 2D AL PNT 712 033 00 FERRULE 1 2 DIA PNT 720 002 00 TAPE DS 10MIL X 75W CLR 740 001 00 TYRAP 3 1 4L 750 004 00 FOOT 10 BLK 1 X 562 760 011 00 BTN 9 X 9MM LG CORE 760 013 00 BTN 9...

Страница 46: ...200UF 20 100V RAD 220 022 00 LYT 22000UF 20 35V RAD 220 023 00 LYT 6800UF 20 35V RAD 220 024 00 LYT 100UF 20 35V RAD 220 025 00 LYT 1000UF 20 35V RAD 220 026 00 LYT 1000UF 20 100V RAD 300 001 00 DIO S...

Страница 47: ...5V 6FT 700 010 04 TF 6 32X3 8 PHP BLKZC 700 011 00 MCH 4 40X1 4 BTNSKT BLKOX 700 019 00 MCH 10 32X3 8 PHP BLKZC 700 022 00 MCH 6 32X5 8 FILPHP CLRZC 700 028 00 SEMS 6 32X1 4 PHP BLKZC 700 028 02 SEMS...

Страница 48: ...48 J1 J3 J2 J4 J8 J7 J5 J6 MONO CHANNEL PCB 055 067 00 COMPONENT SIDE SR40 8 CHANNEL PCB CONNECTOR LOCATIONS CONNECTOR PINOUT AND LOCATION...

Страница 49: ...00 CH 1 MTR 1 2 CH 2 MTR CH 3 MTR 3 4 CH 4 MTR CH 5 MTR 5 6 CH 6 MTR CH 7 MTR 7 8 CH 8 MTR GND 9 10 MTRCTL J4 AUX SEND BUS 40 PIN CABLE 040 093 00 AUX 1 1 2 AUX 1 GND AUX 1 GND 3 4 AUX 2 AUX 2 GND 5 6...

Страница 50: ...50 SR40 8 STEREO CHANNEL PCB CONNECTOR LOCATIONS J1 J3 J6 J4 J7 J5 STEREO CHANNEL PCB 055 067 00 COMPONENT SIDE...

Страница 51: ...AUX 4 AUX 4 GND 11 12 AUX 4 GND AUX 5 13 14 AUX 5 GND AUX 5 GND 15 16 AUX 6 AUX 6 GND 17 18 AUX 6 GND AUX 7 19 20 AUX 7 GND AUX 7 GND 21 22 AUX 8 AUX 8 GND 23 24 AUX 8 GND J5 MAIN BUS 50 PIN CABLE 040...

Страница 52: ...RET 37 38 GND SUB 8 RET 39 40 SUB 8 RET J10 1 12V 2 LAMP CNTRL J1201 1 N C 2 PHONE 1 LEFT 3 PHONE 1 RIGHT J1701 1 FRONT XLR 2 FRONT XLR 3 GND J2 CONNECTS TO POD PCB J3 35 PIN CABLE 040 098 00 LEFT SEN...

Страница 53: ...CTS TO POD PCB J9 34 PIN CABLE 040 105 00 AUX 1 OUT 1 2 AUX 2 OUT AUX 3 OUT 3 4 AUX 4 OUT AUX 5 OUT 5 6 AUX 6 OUT AUX 7 OUT 7 8 AUX 8 OUT GND 9 10 B1 LEFT AUX B1 LEFT 11 12 GND AUX B1 RIGHT 13 14 AUX...

Страница 54: ...put PCB 055 075 00 Mute Switch PCB 055 076 00 Master Meter PCB 055 077 00 Power Distribution PCB 055 078 00 Power Supply PCB 055 101 00 Output Digital PCB For simplicity and to save a few trees step r...

Страница 55: ...e SR40 8 s features So to alleviate any confusion Stereo Channel and Main Aux Returns are one and the same The Master Section is sometimes referred to as the Output Section The Output Digital PCB cont...

Страница 56: ...FIXER MACKIE DESIGNS SERVICE NEWS SR 40 8 12V Power Supply Fuse Upgrade Model SR40 56 8 440W Power supplys Serial Prior to SN AD14392 Effective 4 20 98 Symptom No 12V Power LED s or no power to the Li...

Страница 57: ...del SR40 8 Serial Prior to SN AD14392 Effective 8 11 97 Symptom No symptoms just improved supply filtering Solution Install one 47uf 25V cap part 220 002 00 per each Mono Channel PCB s 055 067 00 Sold...

Страница 58: ...MIXER FIXER MACKIE DESIGNS SERVICE NEWS SR 40 8 Clock Jumper Model SR40 8 Serial Prior to SN AD14392 Effective 6 1 97 Symptom Digital clock noise in the PFL Solo bus Solution On the Mono Channel PCB c...

Страница 59: ...Clock Noise Model SR40 8 Serial Prior to SN AD14392 Effective 5 8 97 Symptom Digital clock noise in the PFL Solo bus Solution On the Ch1 8 Channel PCB replace the add on resistor backside 36kohms to...

Страница 60: ...ER MACKIE DESIGNS SERVICE NEWS SR 40 8 Digital Output PCB Clock Noise Mod Model SR40 8 Serial Prior to SN AD14392 Effective 7 1 97 Symptom Clock noise in PFL bus Solution Remove 220 SMT resistor R7 an...

Страница 61: ...8 Power Supply Diode Failure Model SR40 8 PSU Power supply unit Serial Not available Very early production probably only 10 20 Effective 6 1 97 Symptom Rectifier diodes D5 and D6 Fail Main fuse may fa...

Страница 62: ...e with serial number prior to AD14392 the following updates must be done 1 Replace all five Mono Pod PCB s Part 055 070 00 2 Replace the Master PCB Part 055 073 00 3 Update the EPROM to Ver 1 3 Part 0...

Страница 63: ...4 pin cable interconnecting the A1 A4 and Mono CH17 24 PCBs 4 Replace the cable with the 155 modification PCB Be sure to install the assembly so the red stripe on the cable is towards the top when the...

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