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M2500
MIXING CONSOLE
SERVICE MANUAL
M2500-56C
CONTENTS SPECIFICATIONS .............................................. 3/5 DIMENSIONS ............................................................ 8 PANEL LAYOUT ..................................... 9 CIRCUIT BOARD LAYOUT .............. 16 DISASSEMBLY PROCEDURE ............................ 18 LSI PIN DESCRIPTION .............................. 26 IC BLOCK DIAGRAM ................................... 30 CIRCUIT BOARDS ....................................... 33 INSPECTIONS ....................................................... 61/69 TEST PROGRAM ............................. 76/78 ERROR MESSAGES ....................... 80/81 MIDI IMPLEMENTATION CHART ......................................... 82 CIRCUIT DIAGRAMS PARTS LIST
PA 011484 1/2
M2500-24 20000220-850000 M2500-32 20000220-1000000 M2500-40C 20000220-1150000 M2500-48C 20000220-1300000 M2500-56C 20000220-1450000 PW3000MA 20000220-100000 HAMAMATSU, JAPAN
1.50K-5972 Printed in Japan 2000.02
1
M2500
IMPOR TANT NOTICE
This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated.
WARNING :
Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative. This presentation or sale of this manual to any individual or firm does not constitute authorization certification, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.
IMPORTANT :
The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.
WARNING : IMPORTANT :
Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.) Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
LITHIUM BA TTER Y HANDLING
This product uses a lithium battery for memory back-up. WARNING : Lithium batteries are dangerous because they can be exploded by improper handling. Observe the following precautions when handling or replacing lithium batteries. Leave lithium battery replacement to qualified service personnel. Always replace with batteries of the same type. When installing on the PC board by soldering, solder using the connection terminals provided on the battery cells. Never solder directly to the cells. Perform the soldering as quickly as possible. Never reverse the battery polarities when installing. Do not short the batteries. Do not attempt to recharge these batteries. Do not disasemble the batteries. Never heat batteries or throw them into fire.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig handtering. Udskiftning ma kun ske med batteri af samme fabrikat og type. lever det brugte batteri tilbage til leverandren.
VARNING
Explosionsfara vid felaktigt batteribyte. Anvand samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren. Kassera anvant batteri enligt fabrikantens instruktion.
VAROITUS
Paristo voi rajahtaa, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiiin. Havita kaytetty paristo valmistajan ohjeiden mukaisesti. The following information complies with Dutch official Gazette 1995. 45; ESSENTIALS OF ORDER ON THE COLLECTION OF BATTERIES. · Please refer to the diassembly procedure for the removal of Back-up Battery. · Leest u voor het verwijderen van de backup batterij deze beschrijving.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.
WARNING
Components having special characteristics are marked originally installed. and must be replaced with parts having specification equal to those
2
M2500
SPECIFICATIONS
General specifications
0 dB is referenced to 0.775 Vrms. Total Harmonic Distortion (Master output) Frequency Response (Master Output) Less than 0.1% (THD+N) 20 Hz20 kHz @ +14 dB 600 0+1, 3 dB 20 Hz20 kHz @ +4 dB 600 Gain control at minimum level 128 dB Equivalent Input Noise. 99 dB Residual Output Noise. (STEREO OUT, MONO/C OUT, GROUP/AUX OUT, AUX OUT, AUX/GROUP OUT)
ST CH INPUT Equalization +15, 15 dB maximum HIGH LOW Phantom Power
10 kHz (shelving) 100 Hz (shelving)
+48 VDC is applied to balanced inputs (via 6.8 k current-limiting/isolation resistors) for powering condenser microphones; may be turned ON or OFF via rear-panel phantom Master switch. When Master is ON, individual channels may be turned ON or OFF via +48V switches (with red LED) on each input channel.
Hum & Noise (20 Hz20 kHz)*1 Rs= 150
CH LED Indicators PEAK NOM SIGNAL
Input Gain= Max. Input Pad= OFF || Input sensitivity= 60 dB 64 dB(68 dB S/N) STEREO OUT Master Level control and one Ch fader at nominal level. 80 dB(84 dB S/N) STEREO OUT, MONO/C OUT Master fader at nominal level and all Ch assign SW's off and all GROUP to ST SW's off. 81 dB(85 dB S/N) GROUP1/AUX7GROUP8/AUX14 OUT Master Level control at nominal level and all Ch assign SW's off. GROUP/AUX FLIP SW off. 75 dB(79 dB S/N) AUX16, AUX7/GROUP1AUX14/GROUP8 OUT Master Level control at nominal level and all Ch send controls at minimum. GROUP/AUX FLIP SW off. 90 dB(94 dB S/N) MATRIX OUT Master level control at nominal level and all Matrix Mix controls at minimum level. Crosstalk 70 dB @ 1 kHz 70 dB @ 1 kH 50 dB @ 1 kHz adjacent inputs. input to output. (CH INPUT) input to output. (ST CH INPUT)
LED(red) built into each CH INPUT turns on when pre-Fader level reaches +17 dB. LED(yellow) built into each CH INPUT turns on when pre-Fader level reaches 0 dB. LED(green) built into each CH INPUT turns on when pre-Fader level reaches 13 dB.
ST CH LED Indicators PEAK
NOM
SIGNAL
LED(red) built into each ST CH INPUT turns on when pre-Fader [L+R] level reaches +17 dB. LED(yellow) built into each ST CH INPUT turns on when pre-Fader [L+R] level reaches 0 dB. LED(green) built into each ST CH INPUT turns on when pre-Fader [L+R] level reaches 13 dB. Switchable sine wave @ 100 Hz, 1 kHz or 10 kHz, or pink noise. Direct Scene Memory recall switches (18) Switchable Scene Memory recall (1128)
Oscillator/Noise
Scene Memory
VU Meters
Maximum Voltage Gain GROUP/AUX FLIP SW= off 60 dB CH INPUT to CH INSERT OUT 84 dB CH INPUT to GROUP1/AUX7GROUP8/ AUX14 OUT 80 dB CH INPUT to AUX1, 2 OUT(Pre Fader) 90 dB CH INPUT to AUX36, AUX7/GROUP1 AUX14/GROUP8 OUT(Post Fader) 84 dB CH INPUT to STEREO OUT(CH to ST) 70 dB CH INPUT to MONITOR OUT(PFL) CH INPUT PAD SW CH INPUT GAIN control 26 dB 44 dB variable Dimension variable
11 illuminated meters (0VU= +4 dB output @ 600 load) #1 ; GROUP1/AUX7·AUX1·AUX7/GROUP1·MATRIX1 #2 ; GROUP2/AUX8·AUX2·AUX8/GROUP2·MATRIX2 #3 ; GROUP3/AUX9·AUX3·AUX9/GROUP3·MATRIX3 #4 ; GROUP4/AUX10·AUX4·AUX10/GROUP4·MATRIX4 #5 ; GROUP5/AUX11·AUX5·AUX11/GROUP5·MATRIX5 #6 ; GROUP6/AUX12·AUX6·AUX12/GROUP6·MATRIX6 #7 ; GROUP7/AUX13·NONE·AUX13/GROUP7·MATRIX7 #8 ; GROUP8/AUX14·NONE·AUX14/GROUP8·MATRIX8 #9 ; STEREO L·PFL/AFL L #10 ; MONO/C #11 ; STEREO R·PFL/AFL R LED(red) built into each VU meter turns on when output signal is above the level 3 dB lower than clipping level. 265 mm 875 mm (except rear connectors) 2385 mm(56C), 2142 mm(48C), 1899 mm(40C), 1642 mm(32), 1400 mm(24) 102kg(56C), 93kg(48C), 84kg(40C), 71kg(32), 62kg(24)
VU Meter Peak Indicators
ST CH 1A, 24 INPUT GAIN control 40 dB ST CH 1B INPUT GAIN control 30 dB
Heigt Depth Width
variable Weight
CH INPUT High Pass Filter 18 dB/octave roll-off below 80 Hz at 3 dB point. CH INPUT Equalization +15, 15 dB maximum HIGH 10 kHz (shelving) HIGH-MID 400 8 kHz (peaking) LOW-MID 801.6 kHz (peaking) LOW 100 Hz (shelving)
*1 Hum & Noise are measured with a 6 dB/octave filter @ 12.7 kHz; equivalent to a 20 kHz filter with infinite dB/octave attenuation. For European Model Purchaser/User information specified in EN55103-1 and EN55103-2. Conformed Enviroment: E1, E2, E3 and E4.
3
M2500
Input/output characteristics
Input specifications
Connection PAD Gain Trim Actual Load Impedance For Use With Nominal Input Level *1 Sensitivity *9 80 dB(0.078 mV) 60 CH INPUT (1n) *8 26 3 k 0 16 26 ST CH 1A INPUT [L, R] ST CH 1B INPUT [L, R] ST CH INPUT [L, R] (24) TALKBACK IN MATRIX SUB IN [L, R] 10 k STEREO [L, R] MONO/C SUB IN CH INSERT IN (1n) *8 STEREO [L, R] MONO/C INSERT IN GRP/AUX INSERT IN (1/78/14) AUX INSERT IN (16) *1 *2 *3 *4 *5 *6 *7 *8 *9 10 k 600 Lines 30 5 k +10 20 10 k +10 30 5 k +10 10 k 600 Lines 50600 Mics & 600 Lines 54 dB(1.55 mV) 36 dB(12.3 mV) 10 dB(245 mV) 50 dB(2.45 mV) 10 dB(245 mV) 40 dB(7.75 mV) 10 dB(245 mV) 50 dB(2.45 mV) 10 dB(245 mV) 66 dB(0.388 mV) 2 dB(0.616 V) +4 dB(1.23 V) 6 dB(388 mV) 26 dB(38.8 mV) 0 dB(0.775 V) 10 dB(245 mV) +20 dB(7.75 V) Phone Jack(TRS) *7 +24 dB(12.3 V) Phone Jack(TRS) *6 Nominal 60 dB(0.775 mV) 34 dB(15.5 mV) 16 dB(123 mV) +10 dB(2.45 V) 30 dB(24.5 mV) +10 dB(2.45 V) 20 dB(77.5 mV) +10 dB(2.45 V) 30 dB(24.5 mV) +10 dB(2.45 V) 50 dB(2.45 mV) Max before Clip 40 dB(7.75 mV) 14 dB(155 mV) +4 dB(1.23 V) XLR-3-31 type *2 +30 dB(24.5 V) 10 dB(245 mV) +30 dB(24.5 V) 0 dB(0.775 V) Phono Jack *3 +30 dB(24.5 V) 10 dB(245 mV) Phone Jack(TRS) *4 +30 dB(24.5 V) 20 dB(77.5 mV) XLR-3-31 type *5 Connector In Mixer
0
600 Lines
600 Lines 50600 Mics 600 Lines
0 dB=0.775 Vrms. Balanced. Unbalanced. Balanced (T=HOT, R=COLD, S=GND). Unbalanced. Unbalanced (T=SIGNAL, R=GND, S=GND). Unbalanced (T=OUTPUT, R=INPUT, S=GND). n=56, 48, 40, 32 or 24 Sensitivity is the lowest level that will produce an output of +4 dB(1.23 V), or the nominal output level when the unit is set to maximum level.
Output specifications
Connection Actual Source Impedance For Use With Nominal Output Level *1 Connector In Mixer Nominal Max before Clip
STEREO OUT [L, R] MONO/C OUT GRP/AUX OUT (1/78/14) AUX/GRP OUT (7/114/8) AUX OUT (16) MONITOR OUT [L, R, MONO/C] MATRIX OUT (18) CH INSERT OUT (1n) *5 STEREO INSERT OUT [L, R] MONO/C INSERT OUT GRP/AUX INSERT OUT (1/78/14) AUX INSERT IN (16) PHONES OUT [L, R] *1 *2 *3 *4 *5
150
600 Lines
+4 dB(1.23 V)
+24 dB(12.3 V)
XLR-3-32 type *2
600
10 k Lines
0 dB(0.775 V)
+20 dB(7.75 V)
Phone Jack(TRS) *3
100
8 Phones 40 Phones
10 mW 30 mW
20 mW Stereo Phone Jack *4 75 mW
0 dB=0.775 Vrms. Balanced. Unbalanced (T=OUTPUT, R=INPUT, S=GND). Unbalanced. n=56, 48, 40, 32 or 24
4
M2500
Other
Connector wiring
Pin No. 1 2 3 4 5 6 7 8 9 10 Signal name Power supply remote +15 V ±15 V GND +48 V GND 15 V +12 V +12 V GND / power supply remote Power supply remote +48 V FRAME GND
3 7 10 6
2 5 9
1 4 8
Included items
Power supply connection cable (3 m, 10 pin)
7
M2500
DIMENSIONS
Side Front
265 242 23
137 270
1400: M2500-24 1642: M2500-32 1899: M2500-40C 2142: M2500-48C 2385: M2500-56C
422
792
88
Rear
M2500-24
55 597 597 55
422
792
331
M2500-32
55 718 718 55
154
768
792
88
M2500-40C
55 847 847 55
399
768
792
88
M2500-48C
55 968 968 55
399
768
792
331
M2500-56C
55 740 700 740 55
Units
270
8
875
:mm
M2500
PANEL LAYOUT
Control panel Input channel section Monaural input channels
+48V GAIN
+10 16 34 60
1 2 3 5
26dB
4
HI
15
80
+15
HI-MID
400
8k
15
+15
LO-MID
6
80
1.6k
15
+15
LO
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+48 V (phantom power) switch GAIN control 26 dB pad switch (phase) switch 80 (high pass filter) switch EQ controls EQ switch AUX 1AUX 14 controls PRE switches PAN control Channel assign switches ON/EDIT switch / ON, CHECK indicators PEAK/NOM/SIGNAL indicators Channel fader PFL (pre-fader listen) switch
15
+15
EQ
7
0 10
0
AUX1 PRE
10
AUX14
C
PAN
0
AUX2
10
0
AUX3
10
L ODD
R EVEN
10
1-2
0
ST MONO
AUX4
10
PRE
0 10
3-4 5-6 7-8
11
AUX5
LCR
0
AUX6
10
8
CHECK ON
0
AUX7
10
12
ON/EDIT PRE
0
AUX8
10
9
10 PEAK 5 NOM SIGNAL
0
AUX9
10
13
0
0
AUX10
10
5
0 10
AUX11
10 20
0
AUX12
10
PRE
0 10
30 40
AUX13
0
AUX14
C
10
14
50 60 PFL
15
PAN
9
M2500
Stereo input channels
GAIN
A
+10
30
1 2 3
B
+10
20
A B
HI
15
+15
LO
4
+15
1 2 3 4 5 6 7 8 9 10 11 12 13
GAIN A control GAIN B control A/B switch EQ controls EQ switch AUX 1AUX 14 controls PRE switches BAL control Channel assign switches ON/EDIT switch / ON, CHECK indicators PEAK/NOM/SIGNAL indicators Channel fader PFL (pre-fader listen) switch
15
EQ
5
0
AUX1 PRE
10
0
AUX2
10
0
AUX3
10
0 0
AUX14
10
AUX4
10
BAL PRE
0
AUX5
10 L ODD R EVEN
8
0
AUX6
10
6
0
1-2 3-4
ST MONO
9
AUX7
10
5-6 7-8
0
AUX8
10
PRE
0 10
7
CHECK ON
AUX9
10
0
AUX10
10
ON/EDIT
0
AUX11
10
10 PEAK 5 NOM
11
0
AUX12
10
0 PRE
SIGNAL
0
AUX13
10
5 10
0
AUX14
C
10
20
BAL
30
L ODD R EVEN
40
12
50 60 PFL
13
10
M2500
GROUP/AUX master section AUX 1-6 section
A7/G1-A14/G8 section
1
10 ON 5 5 10 ON 5 10 ON 5 10 ON 5 10 ON 5 10 ON
1
0
0
0
0
0
0
0
LEVEL
10
0
LEVEL
10
0
LEVEL
10
0
LEVEL
10
0
LEVEL
10
0
LEVEL
10
0
LEVEL
10
0
LEVEL
10
5 10 20
5 10 20
5 10 20
5 10 20
5 10 20
5 10 20
2
ON
AFL
ON
AFL
ON
AFL
ON
AFL
ON
AFL
ON
AFL
ON
AFL
ON
AFL
A7 / G1
A8 / G2
A9 / G3
A10 / G4
A11 / G5
A12 / G6
A13 / G7
A14 / G8
30 40 50 60 AFL
30 40 50 60 AFL
30 40 50 60 AFL
30 40 50 60 AFL
30 40 50 60 AFL
30 40 50 60 AFL
3
1 LEVEL control 2 ON switch 3 AFL switch
AUX1
AUX2
AUX3
AUX4
AUX5
AUX6
2
3
1 ON switches 2 AUX 16 master faders 3 AFL (after fader listen) switches
G1/A7-G8/A14 section
PAN
C
PAN
C
PAN
C
PAN
C
PAN
C
PAN
C
PAN
C
PAN
C
4
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
MATRIX
ST MONO
MATRIX
ST MONO
MATRIX
ST MONO
MATRIX
ST MONO
MATRIX
ST MONO
MATRIX
ST MONO
MATRIX
ST MONO
MATRIX
ST MONO
5
4 5 6 7 8
PAN control Channel assign switches ON/EDIT switch / ON, CHECK indicators Fader AFL (after fader listen) switch
LCR
LCR
LCR
LCR
LCR
LCR
LCR
LCR
CHECK ON
CHECK ON
CHECK ON
CHECK ON
CHECK ON
CHECK ON
CHECK ON
CHECK ON
6
ON/EDIT ON/EDIT ON/EDIT ON/EDIT ON/EDIT ON/EDIT ON/EDIT ON/EDIT 10 10 10 10 10 10 10 10
5
5
5
5
5
5
5
5
0
0
0
0
0
0
0
0
5 10 20
5 10 20
5 10 20
5 10 20
5 10 20
5 10 20
5 10 20
5 10 20
30 40
30 40 50 60 AFL AFL
30 40 50 60 AFL
30 40 50 60 AFL
30 40 50 60 AFL
30 40 50 60 AFL
30 40 50 60 AFL
30 40 50 60 AFL
7 8
50 60
G1 / A7
G2 / A8
G3 / A9
G4 / A10
G5 / A11
G6 / A12
G7 / A13
G8 / A14
11
M2500
GROUP/AUX FLIP switch
When GROUP ( ) is selected When AUX ( ) is selected
GROUP AUX
GROUP/AUX FLIP
Stereo/monaural master section STEREO section MONO/C section
1
MATRIX
MATRIX
5
2
10
CHECK ON
CHECK ON
6
ON/EDIT
ON/EDIT
1 2 3 4 5 6 7 8
MATRIX switch ON/EDIT switch / ON, CHECK indicators Fader AFL switch MATRIX switch ON/EDIT switch / ON, CHECK indicators Fader AFL switch
10
5
5
0
0
5 10 20
5 10 20
30 40
30 40 50 60 AFL AFL
3 4
50 60
8 7
STEREO
MONO/C
Matrix section
1 2 3 4 5 6 7 SUB IN L/R control ST L/R controls MONO/C control G1/A7G8/A14 controls LEVEL control ON switch AFL switch
0
L
SUB IN
0
1
R
0
L
ST
0
2
R
MONO/C
0
3
0
G1 / A7
0
G2 / A8
0
G3 / A9
0
G4 / A10
4
0
G5 / A11
0
G6 / A12
0
G7 / A13
0
G8 / A14
0
LEVEL
10
6
12
ON
AFL
5 7
MATRIX 1
M2500
Monitor section
Meter select section
1 2 3 4 MATRIX switch A7-14/G1-8 switch AUX 1-6 switch G1-8/A7-14 switch
1
INPUT MASTER
MASTER PFL
2 3
L+R
4
10
0
5 6
1 2 3 4 5 6 7 8
INPUT indicator MASTER indicator MASTER PFL switch L+R switch LEVEL control ON switch PHONES (headphone) control PHONES jack
MATRIX
A7-14/G1-8
AUX1-6
G1-8/A7-14
1 2 3 4
METER SELECT
LEVEL
Control section
ON
UTILITY
1 2 3
MONITOR
RECALL
PHONES
0
10
7
MEMORY STORE
1 2 3 4 5 6 7 8
UTILITY switch RECALL switch MEMORY display STORE switch CHECK switch 09/ENTER switches / switches DIRECT RECALL 18 switches
4 5
2
CHECK
1
3
4
8
Talkback/oscillator section
5
6
6
7
8
9
0
ENTER
PINK
1 2
10kHz
1kHz
100Hz
ON
AUX1-2
OSCILLATOR
AUX3-6
AUX7-10
AUX11-14
6 7 8 9 10 11
1 2 3 4 5 6 7 8 9 10 11
OSCILLATOR select switches OSCILLATOR ON switch MIC jack TB/OSC control ON switch AUX 1-2 switch AUX 3-6 switch AUX 7-10 switch AUX 11-14 switch ST switch MONO/C switch
7
SCENE MEMORY
1
2
3
MIC ST
3
4
5
4 5
MONO/C
0 10
8
6
TB/OSC
7
ON
8 DIRECT RECALL
TALKBACK
CONTROL
13
M2500
Meter bridge
1
20 5 3 1 0 10 7
PEAK
2
3 10
PEAK
4
+15V 15V +12V PHANTOM MASTER
20 5 3 1 0 10 7
PEAK
20
5 3 1 0 10 7
PEAK
3
3
20
10 7
3
20
5 3 1 0 10 7
PEAK
3
20
5 3 1 0 10 7
PEAK
3
3
20
5 3 1 0 10 7
PEAK
3
20
5 3 1 0 10 7
PEAK
3
VU 1/7
+
VU 2/8
+
VU
+
VU 7/13
+
VU 8/14
+
VU STEREO L
PFL/AFL L
+
VU MONO/C
+
VU STEREO R
PFL/AFL R
+
3
1 2 3 4 5 1/78/14 level meters +15V/15V/+12V indicators PHANTOM MASTER indicator STEREO, PFL/AFL level meters MONO/C level meter
5
Rear panel Monaural input channel input/output jacks
1 INPUT jacks 2 INSERT I/O jacks
24
INPUT
23
INPUT
22
INPUT
21
INPUT
20
INPUT
19
INPUT
18
INPUT
17
INPUT
1
INSERT I/O 0dB
INSERT I/O 0dB
INSERT I/O 0dB
INSERT I/O 0dB
INSERT I/O 0dB
INSERT I/O 0dB
INSERT I/O 0dB
INSERT I/O 0dB
2
Stereo input channel input/output jacks
3 INPUT A jacks 4 INPUT B jacks 5 INPUT jacks
ST CH 4 ST CH 3 ST CH 2
INPUT L/MONO INPUT L/MONO INPUT L/MONO
ST CH 1
INPUT A L
5
R R R R
3
PHANTOM MASTER
OFF ON
INPUT B L R
4
READ OWNER'S MANUAL
DC POWER INPUT
14
M2500
Master section input/output jacks
12
MIDI
6
MONITOR OUT +4dB
L
5
ST OUT
+4dB
4
MATRIX OUT +4dB
5 1 L A11/ G6
3
AUX/GRP OUT +4dB
A7/ G1
2
GRP/AUX OUT +4dB
G5/ A11 G1/ A7 3
1
AUX OUT +4dB
1
IN MONO /C OUT MONO /C 6 2
A12/ G6
A8/ G2
G6/ A12
G2/ A8
4
2
THRU
R
R
7
3
A13/ G7
A9/ G3
G7/ A13
G3/ A9
5
8
4
A14/ G8
A10/ G4
G8/ A14
G4/ A10
6
ST R
MONO/C
ST L
6
5
4 AUX 3
2
1
G8/A14
G7/A13
G6/A12
G5/A11
G4/A10
G3/A9
G2/A8
G1/A7
ST R
MONO/C
ST L
R
L
MATRIX
INSERT I/O
+4dB
SUB IN
+4dB
11
1 2 3 4 5 6 7 8 9 10 11 12
10
9
8
7
AUX OUT jacks GRP/AUX OUT jacks AUX/GRP OUT jacks MATRIX OUT jacks ST OUT, MONO/C OUT jacks MONITOR OUT jacks SUB IN MATRIX jacks SUB IN ST L/R, MONO/C jack INSERT I/O G1/A7G8/A14 jacks INSERT I/O AUX jacks INSERT I/O ST L/R, MONO jacks MIDI connectors
PHANTOM MASTER
OFF ON
13 14
READ OWNER'S MANUAL
DC POWER INPUT
13 PHANTOM MASTER switch 14 DC POWER INPUT connector
15
M2500
CIRCUIT BOARD LAYOUT
IN1
IN2
INPAN
IN3
INJK IN4
CTRL 3/5 CTRL 4/5 CTRL 5/5 MAS1 MAS2 1/2 MASOUT4 MAS4 MAS3 1/2 MASOUT1 ST1 STJK ST2 MASOUT MASPAN ST4 ST3 CTRL 2/5 CTRL 1/5 MAS3 2/2 MAS2 2/2
MASOUT3
IN4
INJK
IN1
IN2
INPAN
IN3
16
56CH
M2500
M2500-56C
METER2 2/2 2/3
METER2 2/2 1/3
ISRT 5/6 ISRT 3/6
ISRT 1/6
ISRT 6/6 METER2 1/2 2/3 ISRT 2/6 ISRT 4/6 METER2 1/2 3/3
METER2 1/2 1/3
METER1 2/3 METER1 1/3
METER1 3/3
17