Yamaha EMX-3000 Service manual

EMX3000

POWERED MIXER

SERVICE MANUAL

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

011569

PA

20010501-135000

CONTENTS

SPECIFICATIONS ................................................ 3/5

PANEL LAYOUT .................................... 7

CIRCUIT BOARD LAYOUT ............... 10

WIRING ................................................................... 11

DIMENSIONS .......................................................... 11

BLOCK & LEVEL DIAGRAM.......................................................

DISASSEMBLY PROCEDURE ............................ 14

LSI PIN DESCRIPTION .............................. 17

IC BLOCK DIAGRAM ................................. 19

CIRCUIT BOARDS ....................................... 20

INSPECTIONS ...................................................... 27/33

CIRCUIT DIAGRAMS .............................................C1

PARTS LIST

HAMAMATSU, JAPAN

1.389K-0221 Printed in Japan 2001.4

12

1

EMX3000

IMPORTANT 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 per-

IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-

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 : Static discharges can destroy expensive components. Discharge any static electricity your body may have

IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power

sonal 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.

cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of
any form.

accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to
this bus.)

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 : EARTH
BLUE : NEUTRAL
BROWN : LIVE
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.

WARNING

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

2

SPECIFICATIONS

General specifications

Maximum output power

STEREO: 300 W+300 W/4Ω @0.5% THD at 1 kHz

215 W+215 W/8Ω @0.5% THD at 1 kHz

BRIDGE: 600 W/8Ω @0.5% THD at 1 kHz

Frequency response

20 Hz~20 kHz +1 dB, –3 dB
@1 W output into 8Ω
(SPEAKER OUT)

Channel Gain control at minimum.

20 Hz~20 kHz +1 dB, –3 dB
@+4 dB output into 600Ω
(ST OUT, MONO OUT, EFFECT
SEND, MONITOR OUT)

Channel Gain control at minimum.

Total harmonic distortion

Less than 0.5% @20 Hz~20 kHz, 150 W output into 4Ω (SPEAKER OUT)
Less than 0.3% @20 Hz~20 kHz, +14 dB output into 600Ω
(ST OUT, MONO OUT, EFFECT SEND, MONITOR OUT)

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

–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)
–87 dB

(ST OUT, MONO OUT)

ST master/MONO master fader at maximum level and all
channel fader at minimum.

–64 dB (68 dB S/N)
(ST OUT, MONO OUT)

ST master/MONO master fader and 1 channel fader at maxi­mum level. And 1 channel Gain control at maximum.

–80 dB
(EFFECT SEND, MONITOR OUT)

Master fader at maximum level and all channel level control
at minimum.

Maximum voltage gain

91 dB MIC IN to SPEAKER OUT (CH 1~8)
64 dB MIC IN to ST OUT (CH 1~8)
38 dB LINE IN to ST OUT (CH 1~8)
38 dB ST IN to ST OUT (CH 9/10, 11/12)
70 dB MIC IN to EFFECT SEND (CH 1~8)
64 dB MIC IN to MONITOR OUT (CH 1~8)

Crosstalk at 1 kHz

–70 dB adjacent input, –70 dB input to output

MIC IN gain control

44 dB variable

POWER AMP level control

14 dB variable

Input channel equalization

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.

Meters

13 points LED meter

CH peak indicators

Red LED on each channel lits when POST EQ signal reaches the level –3 dB below clipping.

Limiter

Comp. : THD≥0.5%

LIMIT indicators

Turn on THD≥0.5%

Graphic equalizer

7 bands (125, 250, 500, 1k, 2k, 4k, 8k Hz), ±12 dB Maximum

Internal digital effect

16 programs, PARAMETER control

Foot switch

Digital effect mute: on/off

Protection circuit (Power amp)

POWER switch on/off mute, DC detection, TEMP (heatsink temp. ≥90°C)

Fan circuit

stop — low speed (50°C) — variable — high speed (70°C)

Phantom power

+48 V is supplied to electrically balanced inputs.

Option

FC5 (Foot switch)

Power requirement/
Power consumption

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

Dimensions (WxHxD)

480

XX

125 454 mm

Weight

16 kg

Accessories

Power cord, Owner’s Manual

EMX3000

3

EMX3000

Input specifications

Input terminals

MIC INPUT (1–8)

LINE INPUT (1–8)

ST INPUT (9–12)

Gain

trim

MAX

MIN

MAX

MIN

MAX

MIN
ST SUB IN (1, 2) +4 dB (1.23 V) +20 dB (7.75 V)
TAPE IN (L, R) –10 dBV (316 mV) +10 dBV (3.16 V) PHONO JACK

Actual load
impedance

For use with

nominal

5 kΩ 50~600Ω Mics

50 kΩ

600Ω Lines

10 kΩ

Sensitivity

–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)

CH INSERT IN (1–4) 0 dB (775 mV) +20 dB (7.75 V)
POWER AMP IN (L, R)

+4 dB (1.23 V)

Input level

1

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)

+18 dB (6.16 V)

Connectors on mixer

XLR-3-31 type

PHONE JACK (TRS)

PHONE JACK

PHONE JACK (I/O)

5

PHONE JACK

1. Sensitivity is the lowest level that can produce an output of +4 dB (1.23 V) or the nominal output le v el 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.

2

2

3

4

3

Output specifications

Output level

Output terminals

Actual source

impedance

For use with

nominal

Nominal Max. before cliping

ST OUT 1, 2 (L/R)
MONO OUT

150Ω 600Ω Lines +4 dB (1.23 V) +20 dB (7.75 V)

EFFECT SEND
MONITOR OUT 1, 2
REC OUT (L/R)

–10 dBV (316 mV) +10 dBV (3.16 V) PHONO JACK

600Ω 10 kΩ Lines

CH INSERT OUT (1–4) 0 dB (775 mV) +20 dB (7.75 V)

C-R/PHONES
OUT

for PHONES
for C-R OUT 10 kΩ Lines +4 dB (1.23 V) +20 dB (7.75 V)

SPEAKER OUT 1, 2 (L/R)

100Ω

40Ω Phones 3 mW 100 mW

4/8Ω Speaker 300 W/4

0.1Ω

BRIDGE OUT 8Ω Speaker 600 W/8

1. Impedance balaned. (T=HOT, R=COLD, S=GND)

2. Unbalanced. (T=OUT, R=IN, S=GND)

3. Unbalanced. (T=L, R=R, S=GND)

4. Unbalanced.

5. 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.

Connectors on

mixer

PHONE JACK

1

(TRS)

PHONE JACK (I/O)

ST PHONE JACK

PHONE JACK
PHONE JACK

4

5

2

3

4

EMX3000

5

EMX3000

6

PANEL LAYOUT

Control Panel

Channel Control Section

GAIN GAIN

+10

-16 -60

PEAK

HIGH

-15

MID

-15

LOW

-15

MONI 1

0

MONI 2

0

EFFECT

EMX3000

A
B

-34

+15

+15

+15

10

10

+10

HIGH

-15

MID

-15

LOW

-15

MONI 1

MONI 2

EFFECT

PEAK

0

0

-34

+15

+15

+15

10

10

GAIN control

1

A/B switch (Channels 9/10~11/12 only)

2

PEAK indicator

3

Equalizer controls (HIGH, MID, LOW)

4

Monitor 1/2 controls (MONI 1/2)

5

Effect control (EFFECT)

6

PAN (panpot) control (Channels 1~8)

7

BAL (balance) control (Channels 9/10~11/12)

8

PFL (pre-fader listen) switch

9

Channel fader

10

10

0

PAN

R

L

PFL PFL

0

5

10

15

20

25
30

40
50

1

Stereo Sub Input Section

MONI 1

0

MONI 2

0

ST

10

0

BAL

R

L

0

5

10

15

20

25
30

40
50

910

10

10

MONI 1 (monitor 1) control

11

MONI 2 (monitor 2) control

12

ST (stereo) control

13

PFL (pre-fader listen) switch

14

MONI 1

MONI 2

ST

0

PFL

ST SUB 1

0

0

0

PFL

ST SUB 2

10

10

10

10

7

EMX3000

Master Control Section

0

5

10

15

20

25
30

40
50

Tape in Section

0

5

10

15

20

25
30

40
50

ST

AFLAFLAFLAFLAFL

0

5

10

15

20

25
30

40
50

0

5

10

15

20

25
30

40
50

0

5

10

15

20

25
30

40
50

MONI 1 (monitor 1) fader

15

MONI 2 (monitor 2) fader

16

EFFECT fader

17

ST 1 (stereo 1) fader

18

MONO (monaural) fader

19

AFL (after fader listen)

20

MONOMONI 2MONI 1 ST 1EFFECT

ST (stereo) control

21

PFL (pre-fader listen) switch

22

10

0

PFL

TAPE IN

Digital effect Section

MONI 1 MONI 2

10

0

8

7

6

5

4

3

2

1

16

MONI 1/2 (monitor 1/2) control

23

ST (stereo) control

24

PROGRAM selector

25

ON switch

26

PARAMETER control

27

0

ON

9

10

11

VOCAL ECHO 1 VOCAL REVERB 1 HALL 1 PLATE 1

1

12

2

VOCAL ECHO 2

13

3

VOCAL ECHO 3

14

4

15

VOCAL ECHO 4

ST

10

MIN

PARAMETERPROGRAM

5
6
7
8

DIGITAL EFFECT

10

0

MAX

VOCAL REVERB 2
VOCAL REVERB 3
VOCAL REVERB 4

Graphic equalizer Section

8K4K2K1K500250125

+12

6
0
6

-12

9

13

HALL 2
HALL 3
ROOM

PLATE 2

14
15

PLATE 3
GATE REVERB

16

GRAPHIC EQUALIZER

Graphic equalizer

28

ON switch

29

10
11
12

+12

6

ON

0
6

-12

8K4K2K1K500250125

8

Power amp Section

LIMITER

LEVEL

+4

+18

LR

ST1 L

MONI 1
MONO

(BRIDGE)

Other indicators and controls

PEAK

+8
+5
+3
+1

0

-1

-3

-5

-7

-10

-15

-20

L

R

ST 1

BRIDGE

POWER AMP

ST 2

+18

POWER

PHANTOM +48V

(1-8ch)

ON

OFF

C-R/PHONES

10

0

10

0

ST1 R
MONO

EMX3000

LIMITER indicator

30

LEVEL controls

31

Power amp select switch

+4

32

Peak level indicator

33

POWER indicator

34

PHANTOM (+48V) switch and indicator

35

C-R/PHONES (control room/headphones)control

36

ST 2 (stereo 2) control

37

Input/Output pabel

MIC MIC MIC MIC MIC MIC MIC MIC

LINE

LINE

LINE

INSERT

INSERT

I O I O I O I O

1

Channel input jacks (MIC, LINE) 1~8

1

INSERT I/O (insert) jacks 1~4

2

Channel input jacks 9~12A

3

INSERT

2345678

INPUT OUTPUT

LINE LINE LINE LINE

LINE

INSERT

INSERT

OUT IN

0dB

I O

Channel input jacks 9~12B
ST SUB 1 (stereo sub 1) jacks

4

ST SUB 2 (stereo sub 2) jacks
TAPE jacks

5

P.AMP IN (power amp input) jacks

6

REC (record) jacks

7

ST 1 (stereo 1) jacks

8

ST 2 (stereo 2) jacks
MONI 1 (monitor 1) jack

9

MONI 2 (monitor 2) jack
MONO (monaural) jack

10

EFFECT jack

11

C-R/PHONES (control room/headphones) jack

12

FOOT SW (foot switch) jack

13

9 L

B

10 R

B

9 L 11 L L L

(MONO) (MONO) (MONO) (MONO)

A

A

10 R 12 R R R

A

11 12

A

9 10

L

11 L

B

TAPE REC

-10dBV -10dBV

12 R

R

B

ST
SUB 1STSUB 2

+4dB +4dB

L

L

R

MONI MONI

12

LR

BRIDGE

R

ST 1

+4dB

RL

ST 2

+4dB

+4dB

P.AMP

IN

+4dB

FOOT SW

MONO

+4dB

EFFECT

+4dB

C-R
PHONES

9

EMX3000

Rear panel

R/

MONO

21

SPEAKERS

AC IN

BRIDGE

L/

MONI 1

21

POWER

ON OFF

CIRCUIT BOARD LAYOUT

PWR1

MIC MIC MIC MIC MIC MIC MIC MIC

LINE

LINE

INSERT
I O I O I O I O

1 2345678

LINE

INSERT

INSERT

INPUT OUTPUT

LINE

LINE LINE LINE LINE

INSERT

0dB

INSERT

I O

OUT IN

9 L

B

10 R

B

9 L 11 L L L

(MONO) (MONO) (MONO) (MONO)

10 R 12 R R R

AAA

9 10

SPEAKERS (speaker output) jacks

1

POWER switch

2

AC inlet

3

2/3PWR2

1/3PWR2

MAIN

L

L

R

MONI MONI

12

LR

BRIDGE

R

ST 1

+4dB

ST 2

+4dB

+4dB

P.AMP

+4dB

FOOT SW

RL

MONO

+4dB

EFFECT

IN

+4dB

C-R
PHONES

1/3PWR2

2/3PWR2

L

11 L

B

TAPE REC

-10dBV -10dBV

12 R

R

B

A

ST
SUB 1STSUB 2

+4dB +4dB

11 12

10

GAIN

+10

-16 -60

HIGH

-15

MID

-15

LOW

-15

MONI 1

MONI 2

EFFECT

PAN

0

5

10

15

20

25
30
40
50

MAIN

GAIN

GAIN

GAIN

GAIN

-34

-34

+10

-16 -60

PEAK

HIGH

+15

-15

MID

+15

-15

LOW

+15

-15

MONI 1

10

0

MONI 2

10

0

EFFECT

10

0

PAN

R

L

PFL

10

15

20

25
30
40
50

1

-34

+10

+10

-16 -60

PEAK

0

0

0

L

PFL

0

5

-16 -60

PEAK

PEAK

HIGH

HIGH

+15

+15

-15

-15

MID

MID

+15

+15

-15

-15

LOW

LOW

+15

+15

-15

-15

MONI 1

MONI 1

10

10

0

0

MONI 2

MONI 2

10

10

0

0

EFFECT

EFFECT

10

10

0

0

PAN

PAN

R

R

L

L

PFL

PFL

0

0

5

5

10

10

15

15

20

20

25

25

30

30

40

40

50

50

2345678

GAIN

-34

-34

-16 -60

PEAK

-15

-15

-15

0

0

0

L

0

5

-34

+10

-16 -60

PEAK

HIGH

+15

+15

-15

MID

+15

+15

-15

LOW

+15

+15

-15

MONI 1

10

0

MONI 2

10

0

EFFECT

10

0

PAN

R

R

L

PFL

PFL

0

5

10

15

20

25
30
40
50

+10

HIGH

+15

MID

+15

LOW

+15

MONI 1

10

MONI 2

10

EFFECT

10

PAN

R

10

15

20

25
30
40
50

A

A

B

B

MONI 1

GAIN

GAIN

GAIN

-34

+10

+10

-16 -60

-16 -60

PEAK

PEAK

HIGH

HIGH

+15

-15

-15

MID

MID

+15

-15

-15

LOW

LOW

+15

-15

-15

MONI 1

MONI 1

10

10

0

0

MONI 2

MONI 2

10

10

0

0

EFFECT

EFFECT

10

10

0

0

PAN

PAN

R

L

L

PFL

PFL

0

0

5

5

10

10

15

15

20

20

25

25

30

30

40

40

50

50

GAIN

-34

-34

+10

+10

PEAK

PEAK

HIGH

HIGH

+15

+15

-15

-15

MID

MID

+15

+15

-15

-15

LOW

LOW

+15

+15

-15

-15

MONI 1

MONI 1

10

10

0

0

MONI 2

MONI 2

10

10

0

0

EFFECT

EFFECT

10

10

0

0

BAL

BAL

R

R

L

L

PFL

PFL

0

0

5

5

10

10

15

15

20

20

25

25

30

30

40

40

50

50

ST

-34

10

0

0

MONI 2

PFL

10

+15

0

TAPE IN

MONI 1 MONI 2

ST

10

0

+15

0

PFL

ST SUB 1

+15

6

MONI 1

5

4
3

10

10

0

2

MONI 2

10

10

0

+12

ST

6
0
6

10

10

0

-12

PFL

R

ST SUB 2

0

5

10

15

20

25
30
40
50

11 129 10

LIMITER

LEVEL

+4

10

+18+4+18

LR

BRIDGE

ST1 L
MONI 1
MONO
(BRIDGE)

POWER AMP

10

10

0

ON

8

9

7

10

11

VOCAL ECHO 1 VOCAL REVERB 1 HALL 1 PLATE 1

1

12

2

VOCAL ECHO 2

13

3

VOCAL ECHO 3

14

VOCAL ECHO 4

4

1

15

16

DIGITAL EFFECT

GRAPHIC EQUALIZER

0

0

5

5

10

10

15

15

20

20

25

25

30

30

40

40

50

50

ST

MIN

PARAMETERPROGRAM

5
6
7
8

ST1 R
MONO

0

VOCAL REVERB 2
VOCAL REVERB 3
VOCAL REVERB 4

PEAK

+8

POWER

+5
+3
+1

PHANTOM +48V

(1-8ch)

0

ON

-1

OFF

-3

-5

C-R/PHONES

-7

-10

-15

10

0

10

-20

ST 2

L

R

10

0

MAX

ST 1

9

13

HALL 2

PLATE 2

10

14

11

15

HALL 3

PLATE 3

ROOM

GATE REVERB

12

16

8K4K2K1K500250125

+12

6

ON

0
6

-12

8K4K2K1K500250125

AFLAFLAFLAFLAFL

0

0

5

5

10

10

15

15

20

20

25

25

30

30

40

40

50

50

3/3PWR2

MONOMONI 2MONI 1 ST 1EFFECT

PWR1

3/3PWR2

DSP

DSP

WIRING

EMX3000

2

1

2

MAIN

PWR1

2pin

CN104

3pin

CN101

12pin

CN102

PWR2 3/3

CN105
CN106

CN103

6pin

3pin

5

12pin

CNM01

13pin

CNM04

4pin

4

3

DSP

CN102

CN101

3pin

3

13pin

1

4

5

PWR2 2/3

Location

Connector Assembly Remarks Parts No.

DSP-PWR1

1

MAIN-PWR1

2

MAIN-DSP

3

PWR1-PWR2 2/3

4

PWR1-PWR2 3/3

5

DIMENSIONS

DC fan

2426&2426 3P 210L
2426&2426 12P
2426&2426 13P
B&C #18 4P
B&C #18 3P

(V705810)
(V705820)
(V705830)
(V702070)
(V702080)

Power transformer

H: 125

286

D: 454

PWR2 1/3

AC INLET

3pin

CN301

W: 480

168

Units: mm

11

EMX3000

4

BLOCK & LEVEL DIAGRAM

A

MAIN

12

3

2

4

3

1

2

4

3

1

12

3

2
4

3

1

2
4

3

1

2
4

3

1

2
4

3

1

2
4

3

1

IC101,201,301,401

6
5

IC501,601,701,801

6
5

9ch: IC901, IC902

11ch: IC801, IC802

57

31

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

ST SUB1: ICD01
ST SUB2: ICD02

57

ST SUB1: ICD01
ST SUB2: ICD02

31

ICD03

57

ICD03

31

IC102, IC302

7

7

11ch: IC803

10ch: IC903
12ch: IC803

5

(3) (1)

IC104,304

IC502,IC702

6

(2) (1)

IC504, IC704

9ch: IC903

57

IC103,303

7

IC504,704

6

7

(2) (1)

7

9ch: IC904

11ch: IC804

57

10ch: IC904
12ch: IC804

31

ICE01

6721

ICF01

6721

ICE02

ICH01

67

ICH01

21

ICJ01

21

ICK01

67

ICK01

21

CNM04-1
CN101-1

CNM04-4~8

CNM04-9~11

CN101-4~8

CN101-9~11

CN101CN101-2

CNM04-1

CNM0

12

A

EMX3000

A

ICE04

57

ICE04

31

1

1

ICE02

ICF02

ICE03

57

ICE03

31

ICM01

3

ICM02

3

PWR1

PWR2

2/3

CN101-4~8

CN101-9~11

CNM04-1

CNM04-1
CN101-1

CN101-3CN101-2
CNM04-2

ICG01

67

DSP

CN101-12 CNM04-12

CN101-13 CNM04-13

ICG01

21

ICH02

67

ICH02

21

ICJ02

67

ICK02

21

ICK02

67

CNM01-8

ICJ01

76

CNM01-10

CN102-8

CN102-10

CN103-1

RY101

RY102

CN103-3

1+

2+

A

13

EMX3000

DISASSEMBLY PROCEDURE

1. Panel Assembly and Bottom Assembly (Manhour
requirement: 5 min.)

1-1. After removing the six (6) screws mark ed [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]: Bind Head Tapping Screw-B 3.0 X 6 MFZN2BL (EP600230)
[100]: Bind Head Tapping Screw-B 3.0 X 6 MFZN2BL (EG340190)

2. MAIN Circuit Board (Manhour requirement: 30 min.)

2-1. Remove the panel assembly and the bottom

assembly. (See Procedure 1.)

2-2. Remove the three (3) screws marked [P70] from

each side (front and rear). The shield plate can then
be removed. (Fig. 2)

2-3. Remove all the knob s f rom th e fr ont pa nel an d al l

the special hexagon nuts from the jacks.

2-4. Remov e 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)

[90]

[100]

Fig.1

14

EMX3000

[P40]

[P50]

MAIN

[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)

[P40]

[P50]

[P40]

[P70][P70]

[P70]

[P50]

[P40]

[P70]

[P40]

[P40]

[P70]

[P70]

3. PWR1 Circuit Board (Manhour requirement: 30 min.)

3-1. Remove the panel assembly and the bottom

assembly. (See Procedure 1.)

3-2. Remove the four (4) screws marked [B130] and

remove the PWR1 circuit board together with the
isolation sheet. (Fig. 3)

3-3. 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)

4. DSP Circuit Board (Manhour requirement: 10 min.)

4-1. Remove the panel assembly and the bottom

assembly. (See Procedure 1.)

4-2. Remove each PCB support at four (4) locations. The

DSP circuit board can then be removed. (Fig. 3)

5. PWR2 3/3 Circuit Board (Manhour requirement:

10 min.)

5-1 Remove the panel assembly and the bottom

assembly. (See Procedure 1.)

5-2. Remove the one (1) screw marked [B75] and the

electrolytic capacitor holder. The PWR2 3/3 circuit
board can then be removed. (Fig. 3)

Fig.2

6. DC fan (Manhour requirement: 10 min.)

6-1. Remove the panel assembly and the bottom

assembly. (See Procedure 1.)

6-2. Remove the two (2) screws marked [B100]. The DC

fan can then be removed. (Fig. 3)

15

EMX3000

7. Power transf ormer (Manhour requirement: 10 min.)

7-1. Remove the panel assembly and the bottom

assembly. (See Procedure 1.)

7-2. 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]

[B60]

[B130]

[B60]

PSW1

DC fan

Fig.3

[B60]

[B50]

[B100]

[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. PWR2 2/3 Circuit Board (Manhour requirement:
15 min.)

8-1. Remove the panel assembly and the bottom

assembly. (See Procedure 1.)

8-2. Remove the five (5) special he xagonal nuts and one

(1) screw marked [R30] from the rear panel. The
PWR2 2/3 circuit board can then be remove. (Fig. 4)

[B130]

Power transformer

DSP

PCB support

[B75]

PWR2 3/3

9. PWR2 1/3 Circuit Board (Manhour requirement:
15 min.)

9-1. Remove the panel assembly and the bottom

assembly. (See Procedure 1.)

9-2. 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]

PSW knob

[R20]

Hexagonal nut

PWR2 2/3

PSW escussion

PWR2 1/3

[R20]

Fig.4

16

[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)

LSI PIN DESCRIPTION

EMX3000

ZFX-2

PIN
No.

1
2
3
4
5
6
7
8
9

10

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

(XY297A00)

NAME I/O FUNCTION

ED2
ED3
ED4
ED5
ED6

ED7
VSS
VDD

CLKM0
CLKM1

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

S
S

I
I

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

CPU DSP: IC105

External Memory and I/O Data Bus

Ground
Power Supply
Clock Mode

CLKM0
CLKM1

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

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

1

0
0

PIN

NAME I/O FUNCTION

No.

53

AXLR2

54

AR1

55

AR2

56

HRBCK/SA0

57

HR/SA1

58

HRS/SA2

59

VSS

60

3

6

1
0

PLL BYPASS

0
1

1
1

61

HXBCK/SCL

62

HXS/SA3

63

/CS/SA4

64

HBCKS/SA5
65
66
67
68
69
70

71
72
73
74
75
76
77
78
79

80
81

HDIR/SA6

82

SEL5V3V
83
84
85
86
87
88
89

/RAS/SRCS
90

/CAS/SROE
91

92
93
94
95
96
97
98
99

100

VDD

I2CSEL

VSS

VDD
AXBC1
AXBC2

AXLR1

DIVS

/LAV

/LMV

/DRDY

EMU0
EMU1

TDO
DIV512

ARLR1
ARLR2

/MUTE

/TRST

/RS

VSS

VDD

/IOE

/ROME

/WE
EA0
EA1
EA2
EA3
VSS

VDD

ED0
ED1

I
I

I
I
I
I

S
S

I
I

I
I

I
S
S

I

I

I
O

O
O

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

O/Z

O

I
I
I

I
I
I

I
S
S
O
O

O
O

O
O
O
O
O
S
S

I/O
I/O

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

PIN

NAME I/O FUNCTION

No.

1

VINL

2

Vcc1

3

AGND1

4

VREFL

5

VREFR

6

VINR

7

CINPR

8

CINNR

9

CINNL

10

CINPL

11

VCOM

12

VOUTR

13

AGND2

14

Vcc2

(X0053A00)

I

ADC Analog Input, Lch
ADC Analog Power Supply
ADC Analog GND
ADC Reference decouple, Lch
ADC Reference Decouple, Rch

I

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

O

DAC Analog Output, Rch
DAC Analog GND
DAC Analog Power Supply

UPD78082(XZ312A00) MCU

PIN

NAME I/O FUNCTION

No.

1

P12/ANI2

2

P13/ANI3

3

P14/ANI4

4

P15/ANI5

5

P16/ANI6

6

P17/ANI7

7

P72/SCK2/ASCK

8

P71/SO2/TXD

9

P70/SI2/RXD

10

P101/T16/T06

11

P100/T15/T05

12

P50

13

P51

14

P52

15

P53

16

P54

17

VSS

18

P55

19

P56

20

P57

21

P30

22

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

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.

ADA

PIN

NAME I/O FUNCTION

No.

15

VOUTL

16

LRCIN

17

BCKIN

18

DIN

19

DOUT

20

XTI

21

XTO

22

CLKIO

23

VDD

24

DGND

25

FMT2

26

FMT1

27

FMT0

28

RSTB

PIN

NAME I/O FUNCTION

No.

23

NC

24

P32

25

P33

26

P34

27

P35/PCL

28

P36/BUZ

29

P37

30

P00

31

P01/INTP1

32

P02/INTP2

33

P03/INTP3

34

NC

35

RESET

36

IC(VPP)

37

X2

38

X1

39

VDD

40

AVDD

41

AVREF

42

AVSS

43

P10/ANI0

44

P11/ANI1

I/O

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

I/O

I/O

I/O

I/O
I/O

O

DAC Analog Output, Lch

I

Sampling Clock Input (fs)

I

Bit Clock Input

I

Audio Data Input

O

Audio Data Output

I

Crystal Oscillator Input, External System Clock Input

O

Crystal Oscillator Output
Crystal Oscillator Buffer Output, External System Clock Input
Digital Power Supply
Digital GND

I

Audio Data Format 2 (Pull up to 70k ohm typical)

I

Audio Data Format 1 (Pull up to 70k ohm typical)

I

Audio Data Format 0 (Pull up to 70k ohm typical)

I

Reset Input, Active "L" (Pull up to 70k ohm typical)

-

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.

I

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

I

System reset input

-

Internal connect

-

Main system clock oscillator X'tal

I

Main system clock oscillator X'tal

-

Power Supply

-

A/D Converter Analog Power Supply

I

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.

DSP: IC104

DSP: IC102

18

IC BLOCK DIAGRAM

EMX3000

74HCU04DT (XZ110A00)
INVERTER

DSP: IC101

1

1A

2

1Y

3

2A

4

2Y

5

3A

6

3Y

7

SS

V

DD

V

14

6A

13

6Y

12

5A

11

5Y

10

4A

9

4Y

8

M5229P (XG203A00)
7-SEG. GRAPHIC

MAIN: ICE02, ICF02

1

IN1

560

2

NF1

IN2

3

560

4

NF2

IN3

5

560

6

NF3

IN4

7

560

8

NF4

9

IN5

560

10

NF5

47k

+

-

+

-

+

-

+

-

+

-

47k

47k

47k

47k

10k

10k

47k

47k

47k

NJM2068L-D(XM356A00

)

OP AMP

MAIN: IC101–104, IC201, IC301–IC304,
IC401, IC501–IC504, IC601,

-Vcc

20

GND

19

+Vcc

18

OUTPUT

17

INVERTED

16

-

+

-

+

-

+

15

14

13

12

11

INPUT
NON-INVERTED

INPUT
NF7

IN7

NF6

IN6

IC701–704, IC801, IC901–904,
ICB01–04, ICD01–03, ICE01,
ICH01, ICJ01,ICK01

NJM4556AL(XP844A00

)

OP AMP

MAIN: ICK02

NJM4558L-D(XQ212A00

)

OP AMP

PWR1: IC101, IC201

NJM4580L(XF195A00

)

OP AMP

MAIN:

ICE03, ICE04, ICG01, ICH02, ICJ02

+

1A2 3 4 5 6 7 8

IN V

+IN

OUT

AAA

+

+IN

BBB

B

OUT

+VIN

NJM4558MT-1 (IG103520)

OP AMP

DSP: IC103

Output A

Inverting
Input A

Non-Inverting
Input A

DC Voltage
Supply

1

2

3

4

V

DC Voltage

8

Supply

Output B

7

Inverting

6

Input B

Non-Inverting

5

Input B

BA682A (XS046A00)

LED LEVEL METER

MAIN: ICM01, ICM02

Vcc Vc1 Vc2 Vc3 Vc4 Vc5 Vc6 Vc7 Vc8 Vc9 Vc10 Vc11 Vc12

INPUT

Discharge Constant

1

3

to R3, C2 :

16 15

17

reg

V

4

918

13 12 11 10

14

8765

2 2 2 2

BA682A

2

to R : Set I LEDGNDGND

1

Vreg

19

EMX3000

L

CIRCUIT BOARDS

MAIN Circuit Board

MIC

LINE

INSERT

I/O

1

GAINGAINGAIN

HIGHHIGHHIGH

MIDMIDMID

MIC MIC MIC MIC MIC MIC MIC

LINE LINE LINE LINE LINE LINE LINE

INSERT

I/O

2

GAINGAINGAIN GAINGAINGAIN GAINGAINGAIN GAINGAINGAIN GAINGAINGAIN GAINGAINGAIN GAINGAINGAIN

HIGHHIGHHIGH HIGHHIGHHIGH HIGHHIGHHIGH

MIDMIDMID MIDMIDMID MIDMIDMID MIDMIDMID MIDMIDMID MIDMIDMID MIDMIDMID

INSERT

I/O

3

INSERT

I/O

4

INPUT

5678

HIGHHIGHHIGH HIGHHIGHHIGH

HIGHHIGHHIGH

HIGHHIGHHIGH

A

9L

11L

10R

12R

9L

10R

9/10 11/12

GAINGAINGAIN

HIGHHIGHHIGH

MIDMIDMID

11L

12R

GAINGAINGAIN

HIGHHIGHHIGH

MIDMIDMID

LOWLOWLOW

MONI 1MONI 1MONI 1

MONI 2MONI 2MONI 2

EFFECTEFFECT

PANPANPAN

LOWLOWLOW LOWLOWLOW LOWLOWLOW LOWLOWLOW LOWLOWLOW LOWLOWLOW LOWLOWLOW

MONI 1MONI 1MONI 1 MONI 1MONI 1MONI 1

MONI 2MONI 2MONI 2

EFFECTEFFECTEFFECT

PANPANPAN

MONI 2MONI 2MONI 2 MONI 2MONI 2MONI 2 MONI 2MONI 2MONI 2 MONI 2MONI 2MONI 2 MONI 2MONI 2MONI 2 MONI 2MONI 2MONI 2

EFFECTEFFECT

PANPANPAN PANPANPAN PANPANPAN PANPANPAN PANPANPAN PANPANPAN

MONI 1MONI 1MONI 1

EFFECTEFFECTEFFECT EFFECTEFFECTEFFECT EFFECTEFFECTEFFECT EFFECTEFFECTEFFECT EFFECTEFFECTEFFECT

MONI 1MONI 1MONI 1

MONI 1MONI 1MONI 1 MONI 1MONI 1MONI 1 MONI 1MONI 1MONI 1

LOWLOWLOW

MONI 1MONI 1MONI 1 MONI 1MONI 1MONI 1

MONI 2MONI 2MONI 2

EFFECTEFFECTEFFECT

BALBALBAL BALBALBAL

LOWLOWLOW

MONI 2MONI 2MONI 2

EFFECTEFFECTEFFECT

PFLPFLPFLPFLPFLPFLPFLPFLPFL PF

20

A

EMX3000

A

OUTPUT

MIC

LINE

8

GAINGAINGAIN

HIGHHIGHHIGH

MIDMIDMID

LOWLOWLOW

MONI 1MONI 1MONI 1

9L

11L

10R

12R

9L

10R

9/10 11/12

GAINGAINGAIN

HIGHHIGHHIGH

MIDMIDMID

LOWLOWLOW

MONI 1MONI 1MONI 1 MONI 1MONI 1MONI 1

11L

12R

GAINGAINGAIN

HIGHHIGHHIGH

MIDMIDMID

LOWLOWLOW

TAPE

MONI 1MONI 1MONI 1

MONI 2MONI 2MONI 2

STSTST

PFL

ST SUB1
MONI 1MONI 1MONI 1

L

L

REC

RR

L

R ST-SUB2R ST-SUB1

TAPE IN STTAPE IN STTAPE IN ST

MONI 1MONI 1MONI 1

PROGRAM

LR

L

MONI1 MONI2

LR

L/MONO

MONI 2MONI 2MONI 2

ON

R MONO

LEVEL

PARAMETERPARAMETER

FOOTSW

EFFECTL(MONO)

C-R/PHONES

C-R/PHONES

R

STSTST

PEAK

+8

+5

-10

-15

-30

CNM01:
to PWR1-CN102

POWER

+3
+1

-0

-1

-3

-5

-7

C-R/PHONESC-R/PHONESC-R/PHONES

ST2ST2ST2

PHANTOM

ON/OFF

CNM04:
to DSP-CN101

MONI 2MONI 2MONI 2

EFFECTEFFECTEFFECT

PANPANPAN

3NA-V698310 1

MONI 2MONI 2MONI 2

EFFECTEFFECTEFFECT

BALBALBAL BALBALBAL

MONI 2MONI 2MONI 2

PFLPFL PFL

A

EFFECTEFFECTEFFECT

MONI 2MONI 2MONI 2

STSTST

PFL

ST SUB2

GRAPHIC EQUALIZER

AFL AFL

ON

AFL AFL AFL

Component side

21

EMX3000

MAIN Circuit Board

A

22

A

EMX3000

A

A

Pattern side

23

EMX3000

CN102:
to PWR1-CN101

DSP Circuit Board

CN101: to MAIN-CNM04

Component side

24

Pattern side

3NA-V698320 2

CN103:
to PWR2 2/3

W301RE

CN104:

to FAN

CN101:

to DSP-CN102

CN102:

to MAIN-CNM01

1

W301WH

2

W301BE

3

W301BL

4

CN105:
to Transformer

CN106:
to PWR2 3/3

W302RE

1

W302BL

2

W302BE

3

PWR1 Circuit Board

EMX3000

3NA-V698330 2

Component side

25