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EMX3000

POWERED MIXER

SERVICE MANUAL

CONTENTS SPECIFICATIONS ................................................ 3/5 PANEL LAYOUT .................................... 7 CIRCUIT BOARD LAYOUT ............... 10 WIRING ................................................................... 11 DIMENSIONS .......................................................... 11 BLOCK & LEVEL DIAGRAM ....................................................... 12 DISASSEMBLY PROCEDURE ............................ 14 LSI PIN DESCRIPTION .............................. 17 IC BLOCK DIAGRAM ................................. 19 CIRCUIT BOARDS ....................................... 20 INSPECTIONS ...................................................... 27/33 CIRCUIT DIAGRAMS ............................................. C1 PARTS LIST

This document is printed on chlorine free (ECF) paper with soy ink.

PA 011569
20010501-135000
1.389K-0221

HAMAMATSU, JAPAN
Printed in Japan 2001.4

1

EMX3000

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.

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: THIS APPARATUS MUST BE EARTHED

IMPORTANT
THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: GREEN-AND-YELLOW : BLUE : BROWN : EARTH NEUTRAL LIVE

WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed.

As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured GREEN and YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety earth symbol or coloured GREEN and YELLOW. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. * This applies only to products distributed by YAMAHA KEMBLE MUSIC (U.K.) LTD.

2

EMX3000

SPECIFICATIONS
General specifications
Maximum output power STEREO: 300 W+300 W/4 @0.5% THD at 1 kHz 215 W+215 W/8 @0.5% THD at 1 kHz BRIDGE: 600 W/8 @0.5% THD at 1 kHz 20 Hz~20 kHz +1 dB, ­3 dB @1 W output into 8 (SPEAKER OUT) Frequency response 20 Hz~20 kHz +1 dB, ­3 dB @+4 dB output into 600 (ST OUT, MONO OUT, EFFECT SEND, MONITOR OUT) Channel Gain control at minimum.

Channel Gain control at minimum.

Total harmonic distortion

Less than 0.5% @20 Hz~20 kHz, 150 W output into 4 (SPEAKER OUT) Less than 0.3% @20 Hz~20 kHz, +14 dB output into 600 (ST OUT, MONO OUT, EFFECT SEND, MONITOR OUT) ­128 dB equivalent input noise ­63 dB residual output noise (SPEAKER OUT) ­95 dB residual output noise (ST OUT, MONO OUT, EFFECT SEND, MONITOR OUT)

Hum & noise (Average, Rs=150) (with 20 Hz~20 kHz BPF)

­87 dB (ST OUT, MONO OUT) ­64 dB (68 dB S/N) (ST OUT, MONO OUT) ­80 dB (EFFECT SEND, MONITOR OUT) 91 dB 64 dB 38 dB 38 dB 70 dB 64 dB MIC IN to SPEAKER OUT MIC IN to ST OUT LINE IN to ST OUT ST IN to ST OUT MIC IN to EFFECT SEND MIC IN to MONITOR OUT

ST master/MONO master fader at maximum level and all channel fader at minimum. ST master/MONO master fader and 1 channel fader at maximum level. And 1 channel Gain control at maximum. Master fader at maximum level and all channel level control at minimum. (CH 1~8) (CH 1~8) (CH 1~8) (CH 9/10, 11/12) (CH 1~8) (CH 1~8)

Maximum voltage gain

Crosstalk at 1 kHz MIC IN gain control POWER AMP level control

­70 dB adjacent input, ­70 dB input to output 44 dB variable 14 dB variable HIGH 10 kHz shelving* MID 2.5 kHz peaking LOW 100 Hz shelving* * Turn over/roll off frequency of shelving: 3 dB below maximum variable level. 13 points LED meter Red LED on each channel lits when POST EQ signal reaches the level ­3 dB below clipping. Comp. : THD0.5% Turn on THD0.5% 7 bands (125, 250, 500, 1k, 2k, 4k, 8k Hz), ±12 dB Maximum 16 programs, PARAMETER control Digital effect mute: on/off POWER switch on/off mute, DC detection, TEMP (heatsink temp. 90°C) stop -- low speed (50°C) -- variable -- high speed (70°C) +48 V is supplied to electrically balanced inputs. FC5 (Foot switch) USA and Canada:120 V AC 60 Hz, 250 W Europe: 230 V AC 50 Hz, 300 W Other: 240 V AC 50 Hz, 300 W 480 X 125 X 454 mm 16 kg Power cord, Owner's Manual

Input channel equalization

Meters CH peak indicators Limiter LIMIT indicators Graphic equalizer Internal digital effect Foot switch Protection circuit (Power amp) Fan circuit Phantom power Option Power requirement/ Power consumption Dimensions (WxHxD) Weight Accessories

3

EMX3000

Input specifications
Input terminals Gain trim MAX MIN MAX MIN MAX MIN 600 Lines 10 k Actual load impedance For use with nominal Input level Connectors on mixer Sensitivity1 ­60 dB (775 µV) ­16 dB (123 mV) ­34 dB (15.5 mV) +10 dB (2.45 V) ­34 dB (15.5 mV) +10 dB (2.45 V) +4 dB (1.23 V) ­10 dBV (316 mV) 0 dB (775 mV) +4 dB (1.23 V)5 Max. before clip ­40 dB (7.75 mV) +4 dB (1.23 V) ­14 dB (155 mV) +30 dB (24.5 V) ­14 dB (155 mV) +30 dB (24.5 V) +20 dB (7.75 V) +10 dBV (3.16 V) +20 dB (7.75 V) +18 dB (6.16 V)5 PHONO JACK PHONE JACK (I/O)4 PHONE JACK3 XLR-3-31 type2 PHONE JACK (TRS)2

MIC INPUT (1­8) LINE INPUT (1­8) ST INPUT (9­12) ST SUB IN (1, 2) TAPE IN (L, R) CH INSERT IN (1­4)

5 k 50 k

50~600 Mics

PHONE JACK3

POWER AMP IN (L, R)

1. Sensitivity is the lowest level that can produce an output of +4 dB (1.23 V) or the nominal output level when the unit is set at maximum gain. (All fader and level controls are at maximum position.) 2. Balanced. (T=HOT, R=COLD, S=GND) 3. Unbalanced. 4. Unbalanced. (T=OUT, R=IN, S=GND) 5. POWER AMP level control= maximum (+4) · In these specifications when dB represents a specific voltage, 0 dB is referenced to 0.775 Vrms, 0 dBV is referenced to 1 Vrms.

Output specifications
Output terminals Actual source impedance For use with nominal Output level Nominal Max. before cliping Connectors on mixer

ST OUT 1, 2 (L/R) MONO OUT 150 EFFECT SEND MONITOR OUT 1, 2 REC OUT (L/R) 600 CH INSERT OUT (1­4) C-R/PHONES for PHONES OUT for C-R OUT SPEAKER OUT 1, 2 (L/R) 0.1 BRIDGE OUT 1. 2. 3. 4. 5. · 8 Speaker 600 W/8 PHONE JACK5 40 Phones 100 10 k Lines 4/8 Speaker +4 dB (1.23 V) +20 dB (7.75 V) PHONE JACK4 300 W/4 10 k Lines 0 dB (775 mV) 3 mW +20 dB (7.75 V) 100 mW ST PHONE JACK3 PHONE JACK (I/O)2 ­10 dBV (316 mV) +10 dBV (3.16 V) PHONO JACK 600 Lines +4 dB (1.23 V) +20 dB (7.75 V) PHONE JACK (TRS)1

Impedance balaned. (T=HOT, R=COLD, S=GND) Unbalanced. (T=OUT, R=IN, S=GND) Unbalanced. (T=L, R=R, S=GND) Unbalanced. Balanced. (T=HOT, S=COLD) In these specifications when dB represents a specific voltage, 0 dB is referenced to 0.775 Vrms, 0 dBV is referenced 1 Vrms.

4

EMX3000

5

EMX3000

6

EMX3000

PANEL LAYOUT
Control Panel
Channel Control Section
A B

GAIN

GAIN

+10 -16

-34 -60

+10

-34

PEAK

PEAK

HIGH

HIGH

-15

+15

-15

+15

MID

MID

-15

+15

-15

+15

LOW

LOW

-15

+15

-15

+15

MONI 1

MONI 1

0

10

0

10

MONI 2

MONI 2

1 2 3 4 5 6 7 8 9 10

GAIN control A/B switch (Channels 9/10~11/12 only) PEAK indicator Equalizer controls (HIGH, MID, LOW) Monitor 1/2 controls (MONI 1/2) Effect control (EFFECT) PAN (panpot) control (Channels 1~8) BAL (balance) control (Channels 9/10~11/12) PFL (pre-fader listen) switch Channel fader

0

10

0

10

EFFECT

EFFECT

0

10

0

10

PAN

BAL

L
PFL

R

L
PFL

R

0

0

5 10

5 10

15

15

20 25 30 40 50

20 25 30 40 50

1

9 10

Stereo Sub Input Section
MONI 1

0

10

MONI 2

0

10

ST

11 12 13 14

MONI 1 (monitor 1) control MONI 2 (monitor 2) control ST (stereo) control PFL (pre-fader listen) switch

0

10

PFL

ST SUB 1 MONI 1

0

10

MONI 2

0

10

ST

0

10

PFL

ST SUB 2

7

EMX3000

Master Control Section
AFL AFL AFL AFL AFL

0

0

0

0

0

5 10

5 10

5 10

5 10

5 10

15 16 17 18 19 20

MONI 1 (monitor 1) fader MONI 2 (monitor 2) fader EFFECT fader ST 1 (stereo 1) fader MONO (monaural) fader AFL (after fader listen)

15

15

15

15

15

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

MONI 1

MONI 2

EFFECT

ST 1

MONO

Tape in Section
21 ST (stereo) control 22 PFL (pre-fader listen) switch
0 10

ST

PFL

TAPE IN

Digital effect Section

Graphic equalizer Section

MONI 1

MONI 2

ST
125 250 500 1K 2K 4K 8K +12 6 0 6 -12

0

10

0

10

0

10

+12 6

ON

0 6

ON

6 5 4 3 2

7 8 9

MIN

MAX
VOCAL REVERB 1 VOCAL REVERB 2 VOCAL REVERB 3 VOCAL REVERB 4

1 16 15

10 11 12 13 14

PROGRAM
1 2 3 4
VOCAL ECHO 1 VOCAL ECHO 2 VOCAL ECHO 3 VOCAL ECHO 4

PARAMETER
5 6 7 8 9 10 11 12
HALL 1 HALL 2 HALL 3 ROOM

-12

13 PLATE 1 14 PLATE 2 15 PLATE 3 16 GATE REVERB

125

250

500

1K

2K

4K

8K

GRAPHIC EQUALIZER

DIGITAL EFFECT

28 Graphic equalizer 29 ON switch 23 24 25 26 27 MONI 1/2 (monitor 1/2) control ST (stereo) control PROGRAM selector ON switch PARAMETER control

8

EMX3000

Power amp Section
LIMITER

LEVEL
+18 +4

L BRIDGE ST1 L MONI 1 MONO (BRIDGE)

+18

+4

30 LIMITER indicator 31 LEVEL controls 32 Power amp select switch

R ST1 R MONO

POWER AMP

Other indicators and controls
33 34 35 36 37 Peak level indicator POWER indicator PHANTOM (+48V) switch and indicator C-R/PHONES (control room/headphones)control ST 2 (stereo 2) control

PEAK

+8 +5 +3 +1 0 -1 -3 -5 -7 -10 -15 -20
L R
0

POWER

PHANTOM +48V
(1-8ch)

ON OFF
C-R/PHONES

10

ST 2

ST 1

0

10

Input/Output pabel
INPUT MIC MIC MIC MIC MIC MIC MIC MIC
9L
B

OUTPUT
L 11 L
B

R
ST 1
+4dB

L
TAPE
-10dBV

L
REC
-10dBV

FOOT SW

L

R
ST 2
+4dB

10 R
B

12 R
B

R L
(MONO)

R L
(MONO)

MONO
+4dB

LINE

LINE

LINE

LINE

LINE

LINE

LINE

LINE

9L
(MONO)

11 L
(MONO)

MONI 1

MONI 2

A

A +4dB

EFFECT
+4dB

INSERT I O

INSERT I O

INSERT I O

INSERT I O

0dB
INSERT I O

10 R
A

12 R
A

1

2

3

4

5

OUT IN

6

7

8

R ST SUB 1
+4dB

R ST SUB 2
+4dB

L

R
P.AMP IN

9 10

11 12

BRIDGE

+4dB

C-R PHONES

1 Channel input jacks (MIC, LINE) 1~8 2 INSERT I/O (insert) jacks 1~4 3 Channel input jacks 9~12A Channel input jacks 9~12B 4 ST SUB 1 (stereo sub 1) jacks ST SUB 2 (stereo sub 2) jacks 5 TAPE jacks 6 P.AMP IN (power amp input) jacks 7 REC (record) jacks 8 ST 1 (stereo 1) jacks ST 2 (stereo 2) jacks 9 MONI 1 (monitor 1) jack MONI 2 (monitor 2) jack 10 MONO (monaural) jack 11 EFFECT jack 12 C-R/PHONES (control room/headphones) jack 13 FOOT SW (foot switch) jack

9

EMX3000

Rear panel

2

R/MONO

SPEAKERS
1 2

L/ MONI 1

1

1 SPEAKERS (speaker output) jacks 2 POWER switch 3 AC inlet

AC IN

BRIDGE

POWER

ON

OFF

CIRCUIT BOARD LAYOUT
PWR1 PWR2 2/3 PWR2 1/3 MAIN
INPUT MIC MIC MIC MIC MIC MIC MIC MIC
9L
B

OUTPUT
L 11 L
B

R
ST 1
+4dB

L
TAPE
-10dBV

L
REC
-10dBV

FOOT SW

L

R
ST 2
+4dB

10 R
B

12 R
B

R L
(MONO)

R L
(MONO)

MONO
+4dB

LINE

LINE

LINE

LINE

LINE

LINE

LINE

LINE

9L
(MONO)

11 L
(MONO)

MONI 1

MONI 2

A

A +4dB

EFFECT
+4dB

PWR2 2/3 PWR2 1/3 PWR1
POWER PHANTOM +48V
(1-8ch)

INSERT I O

INSERT I O

INSERT I O

INSERT I O

0dB
INSERT I O

10 R
A

12 R
A

1

2

3

4

5

OUT IN

6

7

8

R ST SUB 1
+4dB

R ST SUB 2
+4dB

L

R
P.AMP IN

9 10

11 12

BRIDGE

+4dB

C-R PHONES

A B

A B

LIMITER MONI 1 ST LEVEL

PEAK

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

+8 +5
+4

+10 -16

-34 -60

+10 -16

-34 -60

+10 -16

-34 -60

+10 -16

-34 -60

+10 -16

-34 -60

+10 -16

-34 -60

+10 -16

-34 -60

+10 -16

-34 -60

+10

-34

+10

-34

0

10

0

10

+18

+4

+3 +1 0 -1 -3 -5 -7 -10

L BRIDGE ST1 L MONI 1 MONO (BRIDGE)

+18

R ST1 R MONO

PEAK

PEAK

PEAK

PEAK

PEAK

PEAK

PEAK

PEAK

PEAK

PEAK

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

MONI 2
PFL

ON OFF
C-R/PHONES

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

0

10

TAPE IN
MONI 1 MONI 2

POWER AMP
ST

MID

MID

MID

MID

MID

MID

MID

MID

MID

MID

ST

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

0

10

0

10

0

10

0

10

-15 -20

0

10

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW
PFL

ST 2
R

ON

L
MIN MAX

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

-15

+15

ST SUB 1 MONI 1
5 4 3 6

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

7 8 9

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

1 16 15
125

10 11 12 13 14

PROGRAM
1 VOCAL ECHO 1 2 VOCAL ECHO 2 3 VOCAL ECHO 3 4 VOCAL ECHO 4

PARAMETER
5 VOCAL REVERB 1 6 VOCAL REVERB 2 7 VOCAL REVERB 3 8 VOCAL REVERB 4

ST 1
9 HALL 1 10 HALL 2 11 HALL 3 12 ROOM

0

10

13 PLATE 1 14 PLATE 2 15 PLATE 3 16 GATE REVERB

DIGITAL EFFECT
250 500 1K 2K 4K 8K +12 6 0 6 -12

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

ST

+12 6 0

PWR2 3/3
ON

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

0

10

6 -12

PAN

PAN

PAN

PAN

PAN

PAN

PAN

PAN

BAL

BAL
PFL

125

250

500

1K

2K

4K

8K

L
PFL

R

L
PFL

R

L
PFL

R

L
PFL

R

L
PFL

R

L
PFL

R

L
PFL

R

L
PFL

R

L
PFL

R

L
PFL

R

ST SUB 2

GRAPHIC EQUALIZER AFL AFL AFL AFL AFL

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5 10

5 10

5 10

5 10

5 10

5 10

5 10

5 10

5 10

5 10

5 10

5 10

5 10

5 10

5 10

PWR2 3/3

15

15

15

15

15

15

15

15

15

15

15

15

15

15

15

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

20 25 30 40 50

1

2

3

4

5

6

7

8

9 10

11 12

MONI 1

MONI 2

EFFECT

ST 1

MONO

DSP

MAIN

DSP

10

EMX3000

WIRING
2
12pin

MAIN
13pin

CNM01

3
CNM04

PWR1
2pin

DSP
4pin

CN101
13pin

3

CN103

4
CN102
3pin

CN104
3pin

1 2

CN101
6pin 12pin

CN105 CN106

1 4

CN102

3pin

5

PWR2 3/3

PWR2 2/3
5

DC fan Power transformer

3pin

CN301

PWR2 1/3
Location 1 2 3 4 5 Connector Assembly DSP-PWR1 MAIN-PWR1 MAIN-DSP PWR1-PWR2 2/3 PWR1-PWR2 3/3 Remarks 2426&2426 3P 210L 2426&2426 12P 2426&2426 13P B&C #18 4P B&C #18 3P Parts No. (V705810) (V705820) (V705830) (V702070) (V702080)
AC INLET

DIMENSIONS
H: 125

286 168 D: 454

Units: mm
W: 480

11

EMX3000

BLOCK & LEVEL DIAGRAM
A

MAIN

1

2 3 2 4 3 1 2 3 4 1

IC101,201,301,401IC102, IC302
6 5 7 5 7

IC103,303

5 (3)

7 (1)

ICE01
6 7 2 1

ICE02

IC104,304

IC501,601,701,801
1 3 2 2 3 4 1 6 5 7

IC502,IC702

IC504,704
6 (2) 7 (1) 6

ICF01
7 2 1

6 (2)

7 (1)

IC504, IC704
2 3 4 1 2 3 4 1

9ch: IC901, IC902 9ch: IC903 11ch: IC801, IC802 11ch: IC803
5 7

9ch: IC904 11ch: IC804
5 7

10ch: IC904 12ch: IC804
3 3 1 1

10ch: IC903 10ch: IC901, IC902 12ch: IC803 12ch: IC801, IC802

ICH01
6 7

ST SUB1: ICD01 ST SUB2: ICD02
2 3 4 1 5 7

ICH01
2 1

ST SUB1: ICD01 ST SUB2: ICD02
3 1

2 3 4 1

ICJ01
2 1

ICK01
6 7

ICD03
5 7

ICK01
2 1

ICD03
3 1

CNM04-1 CN101-1 CNM04-4~8 CNM04-9~11 CN101-9~11 CN101-2 CNM04-1 CN101 CNM04 CN101-4~8

A

12

EMX3000

A

ICE04
5 7

ICE04
3 1

ICM01
3

ICM02
3

1
1

ICE02

ICE03
5 7

ICE03
1 3 1

ICF02

PWR1

PWR2 2/3
CN103-1 RY101 1+

CNM01-8 ICJ01
7 6

CN102-8

CN102-10 CNM01-10

RY102 CN103-3 2+

ICG01
6 7

ICG01
2 1

ICH02
6 7

ICH02
2 1

ICJ02
6 7

ICK02
2 1

ICK02
6 7

CNM04-1 CN101-1 CN101-4~8 CN101-12 1 CN101-9~11 CN101-2 CNM04-1 CN101-3 CNM04-2 CN101-13 CNM04-13 CNM04-12

DSP

A

13

EMX3000

DISASSEMBLY PROCEDURE

1. 1-1.

Panel Assembly and Bottom Assembly (Manhour requirement: 5 min.) After removing the six (6) screws marked [90] and six (6) screws marked [100], lift the rear side of the assembly and remove it from claws on the front. (Fig. 1)

[100]

[90]

[90]

[100]
[90]: Bind Head Tapping Screw-B 3.0 X 6 MFZN2BL (EP600230) [100]: Bind Head Tapping Screw-B 3.0 X 6 MFZN2BL (EG340190)

Fig.1

2. 2-1. 2-2.

2-3. 2-4.

MAIN Circuit Board (Manhour requirement: 30 min.) Remove the panel assembly and the bottom assembly. (See Procedure 1.) Remove the three (3) screws marked [P70] from each side (front and rear). The shield plate can then be removed. (Fig. 2) Remove all the knobs from the front panel and all the special hexagon nuts from the jacks. Remove the fourteen (14) screws marked [P40] and eighteen (18) screws marked [P50] (cannon connector, pin jack). The MAIN circuit board can then be removed. (Fig. 2)

14

EMX3000

[P70]

[P50]

[P50]

[P70]

[P50]

[P70]

[P40]

[P40]

MAIN

[P40] [P40] [P70]

[P70]

[P40]

[P70]

[P40]

[P70]

[P40]: Flat Head Tapping Screw-B 3.0 X 25 MFZN2BL (VV095300) [P50]: Bonding Screw-B 3.0 X 8 MFZN2BL (VN413300) [P70]: Bind Head Tapping Screw-B 3.0 X 6 MFZN2BL (EP600230)

Fig.2 3. 3-1. 3-2. PWR1 Circuit Board (Manhour requirement: 30 min.) Remove the panel assembly and the bottom assembly. (See Procedure 1.) Remove the four (4) screws marked [B130] and remove the PWR1 circuit board together with the isolation sheet. (Fig. 3) Remove the twenty-eight (28) screws marked [B60]and four (4) screws marked [B50]. The PWR1 circuit board can then be separated from the isolation sheet. (Fig. 3) DSP Circuit Board (Manhour requirement: 10 min.) Remove the panel assembly and the bottom assembly. (See Procedure 1.) Remove each PCB support at four (4) locations. The DSP circuit board can then be removed. (Fig. 3) PWR2 3/3 Circuit Board (Manhour requirement: 10 min.) Remove the panel assembly and the bottom assembly. (See Procedure 1.) Remove the one (1) screw marked [B75] and the electrolytic capacitor holder. The PWR2 3/3 circuit board can then be removed. (Fig. 3) DC fan (Manhour requirement: 10 min.) Remove the panel assembly and the bottom assembly. (See Procedure 1.) Remove the two (2) screws marked [B100]. The DC fan can then be removed. (Fig. 3)

3-3.

4. 4-1. 4-2.

5. 5-1 5-2.

6. 6-1. 6-2.

15

EMX3000

7. 7-1. 7-2.

Power transformer (Manhour requirement: 10 min.) Remove the panel assembly and the bottom assembly. (See Procedure 1.) Remove the hexagonal bolt. The power transformer can then be removed. (Fig. 3) (See Fig.3 for drawing direction of wiring assembly.)
[B130] [B130] [B60] [B50] [B60] Power transformer

PSW1
[B60] [B50] [B130] [B60]

[B60]

[B75]

DC fan

[B130]

DSP
PCB support

PWR2 3/3

[B100]

Fig.3

[B50]:Bind Head Screw SP 3.0 X 8 MFZN2Y (FG330290) [B60]:Pan Head Screw SPK 3.0 X 12 MFZN2Y (VJ470900) [B75]:Bind Head Tapping Screw-B 3.0 X 6 MFZN2BL (EP600230) [B100]:Bind Head Tapping Screw-B 4.0 X 8 MFZN2BL (EG340190) [B130]:Bind Head Tapping Screw-B 4.0 X 8 MFZN2BL (EG340190)

8. 8-1. 8-2.

PWR2 2/3 Circuit Board (Manhour requirement: 15 min.) Remove the panel assembly and the bottom assembly. (See Procedure 1.) Remove the five (5) special hexagonal nuts and one (1) screw marked [R30] from the rear panel. The PWR2 2/3 circuit board can then be remove. (Fig. 4) PWR2 1/3 Circuit Board (Manhour requirement: 15 min.) Remove the panel assembly and the bottom assembly. (See Procedure 1.) Remove the two (2) screws marked [R60], PSW knob, PSW escussion and the 2 screws marked [R20]. The PWR2 1/3 circuit board can then be removed.
[R60] [R30]
Hexagonal nut

9. 9-1. 9-2.

PWR2 2/3
PSW escussion

[R20]

PSW knob [R20] PWR2 1/3

Fig.4

[R20]:Bind Head Screw 3.0 X 8 MFZN2BL (VB659000) [R30]:Bonding Screw-B 3.0 X 8 MFZN2BL (EG413300) [R60]:Bind Head Tapping Screw-B 4.0 X 8 MFZN2BL (EG340190)

16

EMX3000

LSI PIN DESCRIPTION

ZFX-2 (XY297A00) CPU
PIN No. NAME I/O FUNCTION

DSP: IC105 PIN No. 53
NAME I/O FUNCTION

1 2 3 4 5 6 7 8 9 10

ED2 ED3 ED4 ED5 ED6 ED7 VSS VDD CLKM0 CLKM1

I/O I/O I/O I/O I/O I/O S S I I

AXLR2

I I I I I I S S I I I I I S S I I I

External Memory and I/O Data Bus

Ground Power Supply Clock Mode
1 0 0 3 1 0 6 0 1 PLL BYPASS 1 1

54 AR1 55 AR2 56 HRBCK/SA0 57 HR/SA1 58 HRS/SA2 59 VSS 60 VDD 61 HXBCK/SCL 62 HXS/SA3 63 /CS/SA4 64 HBCKS/SA5 65 I2CSEL 66 VSS 67 VDD 68 AXBC1 69 AXBC2 70 AXLR1 71 72 73 74 75 76 77 78 79 80

CLKM0 CLKM1

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

TMS TDI TCK CLKIN VSS VDD CLKO EA12/ED8 EA13/ED9 EA14/ED10 EA15/ED11 VSS VDD EA16/ED12 EA17/ED13 EA18/ES14 EA19/ED15 EA4/ED16 EA5/ED17 EA6/ED18 EA7/ED19 VSS VDD EA8/ED20 EA9/ED21 EA10/ED22 EA11/ED23 TEST0 TEST1 TEST2 TEST3 /BIO /INT1 ARBC1 ARBC2 AX1 AX2 AX3 VSS VDD HX/SDA /EMPTY

I I I I S S O I/O I/O I/O I/O S S I/O I/O I/O I/O I/O I/O I/O I/O S S I/O I/O I/O I/O I I I I I I I I O O O S S I/O/Z O/Z

TAP(Test Access Port) Mode Select TAP Data Input TAP Clock Master Clock Ground Power Supply Machine Clock Output External SRAM and ROM Address Bus/ External DRAM and I/O Data Bus Ground Power Supply External SRAM and ROM Address Bus/ External DRAM and I/O Data Bus

DIVS O /LAV O /LMV O /DRDY O/Z EMU0 I/O/Z EMU1 I/O/Z TDO O/Z DIV512 O ARLR1 I ARLR2 I I I I I I S S O O O O O O O O O S S I/O I/O

External Memory Address Bus/ External I/O Data Bus Ground Power Supply External Memory Address Bus/ External I/O Data Bus

Test Mode Control Separate Control Input Interrupt 1 Audio Data Receive Unit 1 bit Clock Audio Data Receive Unit 2 bit Clock Audio Data Transmitt Unit 1 Data Output Audio Data Transmitt Unit 2 Data Output Audio Data Transmitt Unit 3 Data Output Ground Power Supply Host Interface Data Output/I2C Bus Data CMEM Update Buffer and HR Resistor Empty Flag Output

81 HDIR/SA6 82 SEL5V3V 83 /MUTE 84 /TRST 85 /RS 86 VSS 87 VDD 88 /IOE 89 /RAS/SRCS 90 /CAS/SROE 91 92 93 94 95 96 97 98 99 100 /ROME /WE EA0 EA1 EA2 EA3 VSS VDD ED0 ED1

Audio Data Transmitt Unit 2/3 Left and Right Channel Frame Frequency Signal Audio Data Receive Unit 1 Data Input Audio Data Receive Unit 2 Data Input Host Interface Receive Clock / I2C Bus Address 0 Host Interface Data Input/ I2C Bus Address 1 Host Interface Receive Data Frame Frequency Signal/ I2C Bus Address 2 Ground Power Supply Host Interface Transmitt Clock/ I2C Bus Clock Host Interface Transmitt Data Frame Frequency Signal/ I2C Bus Address 3 Host Interface Chip Select/ I2C Bus Address 4 HRBCK/HXBCK Active Edge Select/ I2C Bus Address 5 Host Interface Mode Select Ground Power Supply Audio Data Transmitt Unit 1 bit Clock Audio Data Transmitt Unit 2/3 bit Click Audio Data Transmitt Unit 1 Left and Right Channel Frame Frequency Signal Machine Clock Output then 8 min. Ruch ALU Overflow Frag Output Ruch MAC Overflow Frag Output Host Interface Transmitt Data Ready Frag Output Emurator Interrupt 0 Emurator Interrupt 1 TAP(Test Access Port) Data Output Machine Clock then512 min. Audio Data Receive Unit 1 Left and Right Channel Frame Frequency Signal Audio Data Receive Unit 2 Left and Right Channel Frame Frequency Signal Host Interface Data Format Select/ I2C Bus Address 6 Input Level Control Mute Control TAP(Test Access Port) Reset Hardware Reset Ground Power Supply External I/O Enable External DRAM Low Address Strove/External SRAM Chip Select External DRAM Culumn Address Strove/External SRAM Output Enable External ROM Enable External Memory and I/O Wright Enable External Memory and I/O Address Bus Ground Power Supply External Memory and I/O Data Bus

17

EMX3000

PCM3001E/2K (X0053A00) ADA
PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NAME VINL Vcc1 AGND1 VREFL VREFR VINR CINPR CINNR CINNL CINPL VCOM VOUTR AGND2 Vcc2 I/O I FUNCTION ADC Analog Input, Lch ADC Analog Power Supply ADC Analog GND ADC Reference decouple, Lch ADC Reference Decouple, Rch ADC Analog Input, Rch ADC Anti-areasing Filter Capacitor (+), Rch ADC Anti-areasing Filter Capacitor (-), Rch ADC Anti-areasing Filter Capacitior (-), Lch ADC Anti-areasing Filter Capacitor (+), Rch DAC Center Voltage Decouple DAC Analog Output, Rch DAC Analog GND DAC Analog Power Supply PIN No. 15 16 17 18 19 20 21 22 23 24 25 26 27 28 NAME VOUTL LRCIN BCKIN DIN DOUT XTI XTO CLKIO VDD DGND FMT2 FMT1 FMT0 RSTB I/O O I I I O I O I/O FUNCTION

DSP: IC104

I

O

I I I I

DAC Analog Output, Lch Sampling Clock Input (fs) Bit Clock Input Audio Data Input Audio Data Output Crystal Oscillator Input, External System Clock Input Crystal Oscillator Output Crystal Oscillator Buffer Output, External System Clock Input Digital Power Supply Digital GND Audio Data Format 2 (Pull up to 70k ohm typical) Audio Data Format 1 (Pull up to 70k ohm typical) Audio Data Format 0 (Pull up to 70k ohm typical) Reset Input, Active "L" (Pull up to 70k ohm typical)

UPD78082 (XZ312A00) MCU
PIN No. 1 2 3 4 5 6 7 NAME P12/ANI2 P13/ANI3 P14/ANI4 P15/ANI5 P16/ANI6 P17/ANI7 P72/SCK2/ASCK I/O I/O I/O I/O I/O I/O I/O I/O FUNCTION 8 bits input/output port./A/D converter analog input. 8 bits input/output port./A/D converter analog input. 8 bits input/output port./A/D converter analog input. 8 bits input/output port./A/D converter analog input. 8 bits input/output port./A/D converter analog input. 8 bits input/output port./A/D converter analog input. Port 7. 3 bits input/output port./Serial clock input/output of serial interface./Serial clock input for asynchronus serial interface. Port 7. 3 bits input/output port./Serial data output for serial interface./Serial data output for asynchronus serial interface. Port 7. 3 bits input/output port./Serial data input of serial interface./Serial data input for asynchronus serial interface Port 10. 2 bits input/output port./External count clock input to 8 bits timer(TM6)./8 bits timer output. Port 10. 2 bits input/output port./External count clock input to 8 bits timer(TM5)./8 bits timer output. Port 5. 8 bits input/output port. Port 5. 8 bits input/output port. Port 5. 8 bits input/output port. Port 5. 8 bits input/output port. Port 5. 8 bits input/output port. Port 5. 8 bits input/output port. Port 5. 8 bits input/output port. Port 5. 8 bits input/output port. Port 5. 8 bits input/output port. Port 3. 8 bits input/output port. Port 3. 8 bits input/output port. PIN No. NAME I/O FUNCTION

DSP: IC102

23 NC 24 P32 I/O 25 P33 I/O 26 P34 I/O 27 P35/PCL I/O 28 P36/BUZ I/O 29 P37 I/O 30 P00 I 31 P01/INTP1 I/O

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

P71/SO2/TXD P70/SI2/RXD P101/T16/T06 P100/T15/T05 P50 P51 P52 P53 P54 VSS P55 P56 P57 P30 P31

I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O

32 P02/INTP2 I/O

33 P03/INTP3 I/O

34 35 36 37 38 39 40 41 42 43 44

NC RESET IC(VPP) X2 X1 VDD AVDD AVREF AVSS P10/ANI0 P11/ANI1

I I I I/O I/O

Not connect. Port 3. 8 bits input/output port. Port 3. 8 bits input/output port. Port 3. 8 bits input/output port. Port 3. 8 bits input/output port./Clock output. Port 3. 8 bits input/output port./Buzzer output. Port 3. 8 bits input/output port. Input only 4 bits input/output port./Effective edge (Rising edge, falling edge, both rising and falling edges) specifiable external interrupt input. 4 bits input/output port./Effective edge (Rising edge, falling edge, both rising and falling edges) specifiable external interrupt input. 4 bits input/output port./Effective edge (Rising edge, falling edge, both rising and falling edges) specifiable external interrupt input. Not connect System reset input Internal connect Main system clock oscillator X'tal Main system clock oscillator X'tal Power Supply A/D Converter Analog Power Supply A/D Converter Power Supply Input A/D Converter ground 8 bits input/output port./A/D converter analog input. 8 bits input/output port./A/D converter analog input.

18

EMX3000

IC BLOCK DIAGRAM

74HCU04DT (XZ110A00) INVERTER
DSP: IC101
1A 1Y 2A 2Y 3A 3Y

M5229P (XG203A00) 7-SEG. GRAPHIC
MAIN: ICE02, ICF02

NJM2068L-D(XM356A00) OP AMP
MAIN: IC101­104, IC201, IC301­IC304, IC401, IC501­IC504, IC601, IC701­704, IC801, IC901­904, ICB01­04, ICD01­03, ICE01, ICH01, ICJ01,ICK01

1 2 3 4 5 6 7 VSS

14 13 12 11 10 9 8

VDD IN1 6A 6Y 5A 5Y 4A 4Y NF3 NF1 IN2

1 560 2 3 560 4 5 560 6 7 560 8 9 560 10

- + 47k 10k

20 19

-Vcc

GND +Vcc

- + 47k

10k 18 17

NF2

OUTPUT

NJM4556AL(XP844A00) OP AMP
MAIN: ICK02

IN3

- + 47k 47k - +

16 15

INVERTED INPUT NON-INVERTED INPUT NF7

IN4

- + 47k 47k - + 47k 47k - + - +
16 15 9

14 13 12 11

NJM4558L-D(XQ212A00) OP AMP
PWR1: IC101, IC201

NF4

IN7

IN5

NF6

NJM4580L(XF195A00) OP AMP
MAIN: ICE03, ICE04, ICG01, ICH02, ICJ02
+ +

NF5

IN6

A

B

1 OUT A

2 IN A

3

4 V

5

6

7

8

+IN
A

+IN
B

IN OUT B B

+V

NJM4558MT-1 (IG103520) OP AMP
DSP: IC103

BA682A (XS046A00) LED LEVEL METER
MAIN: ICM01, ICM02
Vcc
1

Vc1 Vc2 Vc3 Vc4
17
Vreg

Vc5 Vc6 Vc7
13 12 11

Vc8 Vc9 Vc10 Vc11 Vc12
10 8 7 6 5
Vreg

14

Output A Inverting Input A Non-Inverting Input A DC Voltage Supply

1 2 3 4 V

8 7 6 5

DC Voltage Supply Output B Inverting Input B Non-Inverting Input B

INPUT 3
2 2 2 2

BA682A
4 18 2

to R 3, C2 :
Discharge Constant

GND

GND

to R 1 : Set I LED

19

EMX3000

CIRCUIT BOARDS
MAIN Circuit Board
INPUT

A

9L MIC MIC MIC MIC MIC MIC MIC MIC 10R LINE LINE LINE LINE LINE 5 INSERT I/O 1 INSERT I/O 2 INSERT I/O 3 INSERT I/O 4 LINE 6 LINE 7 LINE 8 10R 9/10 9L

11L

12R 11L

12R 11/12

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

GAIN

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

HIGH

MID

MID

MID

MID

MID

MID

MID

MID

MID

MID

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

LOW

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 1

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

MONI 2

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

EFFECT

PAN

PAN

PAN

PAN

PAN

PAN

PAN

PAN

BAL

BAL

PFL

PFL

PFL

PFL

PFL

PFL

PFL

PFL

PFL

PFL

20

A