Tascam DM-24 Page 49 Service Manual Download

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TASCAM DM-24

MAIN PCB DSP Architecture 5/6 (DSP #7)

DT0A
DT0

DT1A

DT1

DSP #7

DR0A
DR0B

TCLK

R186

R188

R187

R189

TFS0

TFS1

RFS0
RCLK0

TCLK

TFS0

DR0A

DR0B

R190

R195

R194

R198

RFS0
RCLK0

DR1A
DR1B

RFS1
RCLK1

AUX out , EFF out

BUSS output

AUX out , STEREO Pre

BUSS output

DT0A
DT0

TCLK

TFS0

U77

U104

DATA0-23

Addr0-14

MS1

RD
WR

IRQ0

IRQ1
IRQ2

FLAG1

FLAG3

CE*

CPU

U110

U111

U112

SRAM

DATA0-15

DATA0-23

ADDRESS0-14

LRCK

R218

U128

U107

U108

DSP_MUTE

Performance check

U106

Effect patching

PLUG-in Effect

SRAM

OE*

U109

ADDRESS0-7

U105

HBR

HBG

Summary of Contents for DM-24

Page 1: ...BLOCK DIAGRAMS 38 8 EXPLODED VIEWS AND PARTS LIST 57 9 PC BOARDS AND PARTS LIST 65 10 INCLUDED ACCESSORIES 90 1 2 2 7 3 MAIN PCB Version 20 4 SRAM 21 5 23 6 29 7 38 8 57 9 65 10 90 D DM M 2 24 4 Digi...

Page 2: ...evel 2dBu Headroom 16dB Input impedance 5k ASSIGNABLE SENDS 1 through 4 Quasi balanced 1 4 jacks Nominal output level 2dBu Maximum output level 14dBu Output impedance 100 2 TR IN L R 2 x RCA pin jacks...

Page 3: ...20 mW 33 load Digital audio I O DIGITAL INPUTS 1 2 2 x XLR type female connectors input impedance 110 2 x RCA pin jacks input impedance 75 AES3 1992 or IEC60958 data format automatically detected 24 b...

Page 4: ...r non metric lock screws For use with the optional MU 24 DM RS 422 for Sony 9 pin 9 pin female D sub connector non metric lock screws wired to RS 422 standards GPI for Machine start 9 pin female D sub...

Page 5: ...kHz 0 5dB 1 5dB LINE IN to STEREO OUTPUT 20Hz 20kHz 0 5dB 1 0dB LINE IN to BUSS AUX OUTPUT 20Hz 20kHz 0 5dB 1 0dB 2TR IN to MONITOR OUTPUTS 20Hz 25kHz 0 5dB 1 5dB Noise level 20Hz 20kHz TRIM max 150 6...

Page 6: ...6 TASCAM DM 24 Dimensional Drawings TASCAM 93 mm 3 7 in 582 mm 22 9 in 574 mm 22 6 in 6 5 7 m m 2 5 9 in 198 mm 7 8 in...

Page 7: ...lustration below shows You can move the cursor through the test items by using the cur sor keys or JOG DATA dial When you press the ENTER key the unit switches into the selected test mode In addition...

Page 8: ...all the LEDs should illuminate They illuminate at the same time if the meter bridge MU 24 is connected 2 Press a cursor key to return to the DIAG menu screen If all the LEDs are in order the LED TEST...

Page 9: ...e corre sponding on screen image goes out Pressing a switch associated with an LED causes the LED to illuminate to indicate the switch is activated The LED turns off when the switch is deactivated 3 U...

Page 10: ...ber are displayed in the upper part of the screen 3 If the fader works properly providing the prescribed maxi mum and minimum values go on to the next fader The image of the previous fader which has...

Page 11: ...d to a fader to be touched is shown in the upper part of the screen along with the number assigned to the actually touched fader The on screen image of the fader knob you touch goes black 3 If the fad...

Page 12: ...ple Fader Moter TEST will start All the faders move from MIN value MAX value MIN value 15 dB or 25 dB with the STEREO fader 2 When all the faders have moved through the positions indi cated above the...

Page 13: ...s into the POD DIAL TEST mode the following screen appears 2 A POD to be rotated is indicated by a bliking frame Rotate that POD First the JOG DATA dial will be indicated 3 Rotate the POD all the way...

Page 14: ...enu screen with the LCD TEST item check marked COMMUNICATION TEST This test checks the MIDI I O and RS422 for irregularity This test is conducted largely by letting data be looped as inter nally direc...

Page 15: ...screen with a check mark placed in the corresponding check box 5 When a time out occurs the next pop up message will appear This pop up message goes out when you press a cursor key No check mark is p...

Page 16: ...e GPI TEST mode the follow ing pop up message will appear 2 Upon pressing ENTER the GPI pulse signal is sent out and the next pop up message will appear Pressing a cursor key stops sending out the GPI...

Page 17: ...tialization the pop up message will go out bringing you back to the DIAG menu screen with a check mark placed in the corre sponding check box Pressing a cursor key aborts the initialization SRAM INIT...

Page 18: ...e SRAM DUMP mode the following message will appear 2 Upon pressing ENTER the dump process starts Pressing a cursor key cancels the dump and brings you back to the DIAG menu screen The next pop up mess...

Page 19: ...of times you repeat the following procedure is recorded on the SRAM This record however is NOT erased by SRAM INIT BE SURE TO RUN THIS PROCEDURE WHEN THE FLASH ROM IS REPLACED AND NEVER RUN THIS PROC...

Page 20: ...HE MAIN PCB VERSION MAIN PCB Version TASCAM DM 24 1 Switch on power to the DM 24 2 Press SHIFT REPEAT RHSL as many times as neces sary to get to the following screen XX in Main PCB version XX in the f...

Page 21: ...e process Otherwise there are occasions where the system data is lost Required Equipment MIDI cable Either a computer program that is capable of recording play ing back the MIDI system exclusive data...

Page 22: ...message appears operate the MIDI sequencer to play the MIDI file containing the SRAM data 4 When playing the SRAM data the next pop up message will appear 5 Upon completion of the load the next pop u...

Page 23: ...d Remote Program Data 3 main mid Program Data about Main CPU normal operation 4 preset mid Preset Library Data 5 diag mid Diagnostics Program Data 6 start mid Main CPU StartUp Program Data 7 panel mid...

Page 24: ...earance of the above pop up play the MIDI Data Filer having a mid file you need to dump before any other one 6 As shown below the File Name field on the screen reads the file name and version number t...

Page 25: ...arts After having played the panel mid file Sector xx download erase write verify done is dis played over than 10 times followed by ROM update fin ished restarting Mixer and then the DM 24 automati ca...

Page 26: ...7 and U31 on the MAIN PCB and use the ROM WRITER to run the Program Update b Install the ROMs removed in step a and switch on power to the DM 24 Powered up it shows the screen you were at in step 4 c...

Page 27: ...the Version Number and initialize the SRAM as follows 1 Get to the PREFERENCES sub screen under the OPTION screen move the curosr to the Version Info button and press ENTER 2 Check the pop ups for th...

Page 28: ...4 4 SRAM INIT ENTER SRAM INIT 5 EXIT ENTER DIAGNOSTICS 4 Move the cursor to the SRAM INIT option and press ENTER to run SRAM INIT 5 Move the cursor to the EXIT option and press ENTER to leave the DIAG...

Page 29: ...k the U6 and U7 on the MAIN PCB and its peripheral cir cuits for signs of poor contact or bad soldering If these mesures are of no avail replace the ROM at U6 and U7 MAIN PCB U6 U7 U6 U7 ROM 2AA The p...

Page 30: ...the MAIN PCB and its peripehral circuits for signs of poor contact or bad soldering MAIN PCB U6 U7 009 A CPU address error occured CPU 011 An illeggal interruption signal was issued Check that pin no...

Page 31: ...haracters in a single line 64 Write down all error messages and check with the Tokyo Service CP 99 An undefined interruption occured Run the SRAM Initialization If this is of no avail replace the ROM...

Page 32: ...le Control and Layer Control Sections Module Control Section Layer Control Section 05 Check if any switches are held down in the Machine Control Section Machine Control Section 06 Check if any switche...

Page 33: ...lso is of no avail check if the read off signal indicating the Fader SOLO VR positions at pin 2 of MFxxx fader itseld on the FADER PCB and pin 2 of VR1 on the C ROOM PCB does not busrt off while nothi...

Page 34: ...xxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx Please note for reference Meaning The Panel CPU runs wild Remdy Restart the DM 24 If this does not fix the problem write down all e...

Page 35: ...ich generate an interruption to pin 76 of the CPU U33 for signs of bad soldering 5V AC 5V MAIN PCB U3 CPU U33 76 U3 8pin R3 R52 U33 76pin Out of Sram Range Initialize Sram Data xxch xxx xxxxxxxxxxxxx...

Page 36: ...eplace the battery OPTION PREFERENCE Battery Check OK Can t Save DM 24 System Data Battery NaN occurred on the DSP Meaning Aberrant data is detected in the audio signal in the DSP Remedy Run the SRAM...

Page 37: ...Meaning The wrong CH number was specified when requesting that the bar display data for the SURROUND screen should be generated Remedy Run the SRAM Initialization If this does not fix the problem che...

Page 38: ...38 TASCAM DM 24 7 BLOCK DIAGRAMS...

Page 39: ...39 TASCAM DM 24...

Page 40: ...40 TASCAM DM 24 MAIN PCB CPU BLOCK DIAGRAM part 1...

Page 41: ...OC0C 2 P7 OE R 2 111 74 88 PE13 U164 U30 RXD1 91 89 PB8 AN0 PE8 TIOC2A RXD0 50 112 49 AN4 IRQ0 RXD1 28 R W R RXD0 50 96 102 2 3 24V P1 12 4 6 7 5 11 10 9 U4 P4 14 DIG I O PCB 13 15 3 1 RS 422 2 RESET...

Page 42: ...in U87 206pin U88 206pin U94 206pin U95 206pin U106 206pin U113 206pin U71 27pin U72 27pin U73 27pin P3 3pin U148 13pin U149 13pin U150 13pin U151 13pin U152 13pin U153 13pin U154 13pin U155 13pin U15...

Page 43: ...LOT1 IN 2 SLOT1 IN 7 SLOT1 IN 1 SLOT1 IN 8 SLOT1 IN 4 SLOT1 IN 6 SLOT1 IN 11 SLOT1 IN 12 SLOT1 IN 10 SLOT1 IN 9 SLOT1 IN 13 SLOT2 IN 8 SLOT2 IN 6 SLOT2 IN 7 SLOT2 IN 3 SLOT2 IN 10 SLOT2 IN 4 SLOT2 IN...

Page 44: ...44 TASCAM DM 24 MAIN PCB DSP BLOCK DIAGRAM...

Page 45: ...R1B DR0A DR0B DT1A DT1B DT0A DT0 DR0A DR0B DR1A DR1B DT0A DT0 DT1A DT1 CS842 CS842 CS8420 CS8420 AK535 AK452 DR0A DR0B DT0A DT0 DSP 7 DSP 2 DSP 3 DSP 4 DSP 5 DSP 6 DT0 DT0 DR0A DR0 DR1 DR1 DSP 9 IOX 3...

Page 46: ...25 32 Post GATE MON1 8 RTN Digital OUT MON9 16 RTN Digital OUT AUX out EFF out BUSS output Post FADER 16 Digital in Insert out DT0A DT0 DT1A DT1 TCLK TCLK TFS0 TFS1 DR0A DR0B RFS0 RCLK0 DR0A DR0B RFS0...

Page 47: ...32 DT0A DT0 DT1A DT1 TCLK TCLK TFS0 TFS1 DR0A DR0B RFS0 RCLK0 DR1A DR1B RFS1 RCLK1 DATA0 15 Addr0 14 MS0 RD WR IRQ0 IRQ1 IRQ2 FLAG0 FLAG1 FLAG3 DT0A DT0 DT1A DT1 TCLK TCLK TFS0 TFS1 DR0A DR0B RFS0 RCL...

Page 48: ...B RFS0 RCLK0 DR1A DR0B RFS1 RCLK1 U106 U77 U88 U87 DATA0 Addr0 14 DATA0 31 Addr0 15 MS RD WR MS0 RD WR IRQ0 IRQ1 IRQ2 FLAG0 FLAG1 IRQ0 IRQ1 IRQ2 FLAG FLAG FLAG3 FLAG3 CPU U97 U96 SDRAM DATA0 15 DATA0...

Page 49: ...R198 RFS0 RCLK0 DR1A DR1B RFS1 RCLK1 AUX out EFF out BUSS output AUX out STEREO Pre BUSS output DT0A DT0 TCLK TFS0 U77 U104 DATA0 23 Addr0 14 MS1 RD WR IRQ0 IRQ1 IRQ2 FLAG1 FLAG3 CE WE CPU U110 U111 U...

Page 50: ...AUX ST CASC in BUSS DT0A DT0 TCLK TFS0 U106 U95 CS RD WR IRQ0 IRQ2 FLAG0 FLAG3 CPU DATA0 7 LRCK R11 U3 U19 U15 Performance check U17 MASTER FADER MASTER COMP CASCADE ADDRESS0 7 U21 HBR HBG R40 R42 R4...

Page 51: ...R1A U159 AK5353 U88 DSP P5 P111 TB MIC STUDIO L STUDIO R P33 P32 P106 STEREO L STEREO R CROOM L CROOM R METER L METER R P101 U104 U103 U105 CR CROOM PCB MASTER PCB U503A U503B U504 U505 P108 P104 U510...

Page 52: ...9 16DO 1 8DO TDIF 1 1 2 3 ADAT IN TDIF 1 1 2 3 ADAT OUT SLOT 1 SLOT 2 TDIF PCB MOTHER PCB MOTHER PCB TDIF PCB MAIN PCB SLOT 1 SLOT 2 P611 P611 P612 P612 P17 P18 P17 P18 U120 P23 AL1402 P23 P614 P603 P...

Page 53: ...G M L11 H C G M L12 H C G M L13 H C G M L14 H C G M L15 H C G M L16 H C G AK5383 AK5383 AK5383 AK5383 AK5383 AK5383 AK5383 AK5383 INPUT JACK PCB MIC AMP PCB MAIN PCB P101 U1A U1B U3 U2 P102 P103 P104...

Page 54: ...DS 1 2 3 4 DAC3 DAC3 DIGITAL OUTPUTS 1 2 DIT DIT J101 J201 J301 J401 P105 P31 U501 U502 J102 J202 J302 J402 P106 P32 MASTER PCB DIO PCB J904 J904 J905 J906 J903 J903 J901 J902 P901 P901 MAIN PCB P35 P...

Page 55: ...1 T C 110V W103 W102 W101 CN1 W103 W102 W101 DM 100V CN1 91251456 00 SW POWER UNIT CN9 CN10 CN11 CN12 CN13 To PCBA MOTHER To PCBA MOTHER To PCBA MAIN To PCBA FADER To PCBA LCD SUB PANEL TDIF P1 P9 P2...

Page 56: ...he resistors and capacitors refer to the circuit dia grams contained in the manual Parts marked with this sign are safety critical components They must be replaced with identical components refer to t...

Page 57: ...ODED VIEW 1 TASCAM DM 24 1 2 3 4 5 6 7 8 8 9 0 q q w e Z F r t t y P u i o p D S a a a a s d d f g g h h h j g k l z x x c v b n m Q Q Q Q Q W W E E R A R R R R T Y Y Y U U I To Side Panel R To Rear P...

Page 58: ...OVER WHT N61 1 23 9260362701 BUTTON BLT IN WHT 1 24 9260362601 BUTTON BLT IN R23 1 25 9260362801 BUTTON BLT IN N64 1 26 9260299302 BUTTON BLT IN LED 1 27 9260362901 BUTTON BLT IN 266C 1 28 9260324702...

Page 59: ...60 9260389100 PCB SUPPORT HP 8 1 61 9780403006 SCREW BH M3X6 1 62 9260356300 SPACER SUPPORT LCC 8 1 63 9260355700 SPACER SUPPORT MC 8 1 64 9260366700 CUSHION 10X20X9 1 71 MIC AMP PCB GATHER PCB ASSY I...

Page 60: ...EXPLODED VIEW 2 TASCAM DM 24 1 2 3 3 4 5 6 7 7 8 9 0 q w e r r t y u u i o p a s d f g h j k l z x c T Q Q Q Q Q Q Q W E R To Top Panel To Top Panel T A S D F G H J K L 60...

Page 61: ...63901 BRACKET SLOT 2 20 MOTHER PCB ASSY GATHER PCB ASSY MOTHER Refer to page 70 2 21 9260364301 BRACKET MOTHER PCB 2 22 9260363701 FRAME BOTTOM 2 23 9260384800 SHIELD COVER TRANS 2 24 9125145202 POWER...

Page 62: ...0 2 64 BD PCB ASSY GATHER PCB ASSY POWER Refer to page 70 2 65 TR2 PCB ASSY GATHER PCB ASSY POWER Refer to page 70 2 66 TR1 PCB ASSY GATHER PCB ASSY POWER Refer to page 70 2 67 TR5 PCB ASSY GATHER PCB...

Page 63: ...EXPLODED VIEW 3 MU 24 63 TASCAM MU 24 1 1 2 3 4 5 6 7 8 9 a a s s d 0 0 q w e e f g g f g g...

Page 64: ...71 3 8 PCB ASSY METER DRIVER GATHER PCB ASSY METER DRIVER Refer to page 71 3 9 9260368900 REAR PANEL METER 3 10 9260369000 BASE METER 3 11 9260369100 ANGLE SIDE L 3 12 9260369200 ANGLE SIDE R 3 13 92...

Page 65: ...CHIP RA40 41 9111303030 R ARRAY 47KX8 YC 15J CHIP RA42 43 9111281030 R ARRAY 10KX8 FCA350 CHIP RA44 45 9111303030 R ARRAY 47KX8 YC 15J CHIP RA46 49 9111281030 R ARRAY 10KX8 FCA350 CHIP GATHER PCB ASS...

Page 66: ...IC TC74VHC153F 16P X1 9173016430 OSC MIN95A T 7 056MHZ X2 9173019730 XTAL LIM C 30MHZ GATHER PCB ASSY INPUT REF NO PARTS NO DESCRIPTION 9145313000 GATHER PCB ASSY INPUT PCB INPUT JACK PCB MIC AMP D13...

Page 67: ...9165023530 DIODE 1SS355 TE17 D401 403 9165023530 DIODE 1SS355 TE17 D451 453 9165023530 DIODE 1SS355 TE17 D501 503 9165023530 DIODE 1SS355 TE17 D551 553 9165023530 DIODE 1SS355 TE17 GATHER PCB ASSY FA...

Page 68: ...B1237R SW1 16 9136003020 TACT SW EVQ11L H 5 TP SW17 33 9136002000 TACT SW SKHHDA SW34 9136003020 TACT SW EVQ11L H 5 TP SW35 42 9172039800 ENCODER EC12E24204F25 SW43 9172040200 ENCODER EC12E2420802 SW1...

Page 69: ...VR3 9172023200 1S1UVR 11 50K W VR4 9172023100 1S2UVR 14 10K A X2 GATHER PCB ASSY TRANSPORT REF NO PARTS NO DESCRIPTION 9145319020 GATHER PCB ASSY TRANSPORT J US C 9145319050 GATHER PCB ASSY TRANSPORT...

Page 70: ...101 SPARK KILLER 0 0047M 250V D1 9165026900 BRIDGE DIODE RS403L GATHER PCB ASSY POWER REF NO PARTS NO DESCRIPTION D3 9165027000 BRIDGE DIODE KBU6D D4 5 9165020550 DIODE LT 1N4003 TP 0 6MM D6 916605555...

Page 71: ...K S RED J202 9144330000 PLUG S16B PH K S SW101 103 9136002000 TACT SW SKHHDA GATHER PCB ASSY METER DRIVER OPTION REF NO PARTS NO DESCRIPTION 9145335000 GATHER PCBA METER DRIVER PCB METER DRIVER J1 91...

Page 72: ...9260366200 LEVER SLOT 9260330600 D SUB WASHER HW C050MN00 9260330700 D SUB SCREW HW H118MN02 9145331000 GATHER PCB ASSY IF AE DM PCB IF AE DM D1 9165023530 DIODE 1SS355 TE17 D2 3 9165024730 DA IMN10 T...

Page 73: ...7051430 IC TC74VHCT04AF 14P U22 9167066730 IC AL1402 U23 24 9167075030 IC HD74LV04AFPEL U25 28 9167075430 IC HD74LV273AFPEL U26 9167070530 IC PC410 U27 9167040030 IC M66230FP X1 9173013930 CRYSTAL SK3...

Page 74: ...2022730 BEAD BK1608HS102 T IF AN DM OPTION REF NO PARTS NO DESCRIPTION L090 100 9122022730 BEAD BK1608HS102 T L110 120 9122022730 BEAD BK1608HS102 T L130 140 9122022730 BEAD BK1608HS102 T L150 160 912...

Page 75: ...75 TASCAM DM 24 MAIN PCB SIDE A...

Page 76: ...76 TASCAM DM 24 MAIN PCB SIDE B...

Page 77: ...TASCAM DM 24 GATHER PCB TRANSPORT TRANSPORT PCB LCD SUB PCB MIDI PCB TDIF PCB 77...

Page 78: ...TASCAM DM 24 GATHER PCB MASTER STUDIO PCB C ROOM PCB DIGITAL I O PCB MASTER JACK PCB MASTER AMP PCB BUSS PCB 78...

Page 79: ...79 TASCAM DM 24 FADER PCB SIDE A...

Page 80: ...80 TASCAM DM 24 FADER PCB SIDE B...

Page 81: ...81 TASCAM DM 24 MOTHER PCB MOTHER PCB SIDE A SIDE B...

Page 82: ...82 TASCAM DM 24 PANEL PCB SIDE A...

Page 83: ...83 TASCAM DM 24 PANEL PCB SIDE B...

Page 84: ...84 TASCAM DM 24 GATHER PCB INPUT INPUT JACK PCB MIC AMP PCB...

Page 85: ...85 TASCAM DM 24 GATHER PCB POWER POWER PCB POWER SW PCB TRANS1 2 PCB TR1 2 3 4 5 PCB BD PCB...

Page 86: ...86 TASCAM MU 24 GATHER PCB METER BRIDGE MASTER METER PCB INPUT METER PCB OPTION METER DRIVER PCB OPTION...

Page 87: ...87 TASCAM IF TD DM IF AE DM IF TD DM PCB OPTION IF AE DM PCB OPTION...

Page 88: ...88 TASCAM IF AD DM IF CS DM IF AD DM PCB OPTION IF CS DM PCB OPTION...

Page 89: ...89 TASCAM IF AN DM IF AN DM PCB OPTION IF AN DM PCB OPTION SIDE A SIDE B...

Page 90: ...TASCAM DM 24 INCLUDED ACCESSORIES REF NO PARTS NO DESCRIPTION REMARKS 9101439600 OWNER S MANUAL JPNANESE J 9101439700 OWNER S MANUAL ENGLISH EXCEPT J 10 INCLUDED ACCESSORIES 90...

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