Fostex VM-04 Service manual

Page 1

Service Manual

Model

VM04

4ch Digital Mixer with DSP Effects

FOSTEX CORPORATION 3-2-35 Musashino, Akishima, Tokyo, Japan 196-0021 FOSTEX CORPORATION OF AMERICA 15431 Blackburn Ave., Norwalk, CA 90650, U.S.A.

Page 2

VM04VM04

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

The lightening flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

“WARNING”

“TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.”

CAUTION:

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.

ATTENTION:

POUR ÉVITER LES CHOCS ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU' AU FOND.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

8. BLOCK DIAGRAMS

OUTPUT

(-10dBV)

D/A

PHONES

METER

MASTER FADER

S/P DIF OUT

D/A

MASTER

EFFECT

SAFETY INSTRUCTIONS

1. Read instructions - All the safety and operating instructions should be read before the appliance is operated.

2. Retain instructions - The safety and operating instructions should be retained for future reference.

3. Heed warnings - All warnings on the appliance and in the operating instructions should be adhered to.

4. Follow instructions - All operating and use instructions should be followed.

5. Water and Moisture - The appliance should not be used near water - for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, and the like.

6. Carts and Stands - The appliance should be used only with a cart or stand that is recommended by the manufacturer.

An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn.

7. Wall or Ceiling Mounting - The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer.

8. Ventilation - The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the appliance should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.

9. Heat - The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat.

10. Power Sources - The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.

11. Grounding or Polarization - The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated.

12. Power Cord Protection - Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.

13. Cleaning - The appliance should be cleaned only as recommended by the manufacturer.

14. Nonuse Periods - The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.

15. Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.

16. Damage requiring Service - The appliance should be serviced by qualified service personnel when: A. The power supply cord or the plug has been damaged;

B. Objects have fallen, or liquid has been spilled into the

appliance; or C. The appliance has been exposed to rain; or D. The appliance does not appear to operate normally or

exhibits a marked changed in performance; or E. The appliance has been dropped, or the enclosure dam-

aged.

17 Servicing - The user should not attempt to service the appli-

ance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel.

EFFECT

R L

METER

CH1

PAN

FADER

10kHz100Hz

A/D

INPUT 1

(-10dBV~-50dBV)

TRIM

EFFECT

SEND

PRE/POST

10kHz100Hz

METER

CH2

PAN

FADER

A/D

INPUT 2

(-10dBV~-50dBV)

TRIM

10kHz100Hz

METER

CH4

PAN

FADER

A/D

INPUT 4

(-10dBV)

EFFECT

SEND

PRE/POST

LO HI

METER

10kHz100Hz

PAN

FADER

EFFECT

SEND

PRE/POST

LO HI

EFFECT

SEND

PRE/POST

A/D

CH3

INPUT 3

(-10dBV)

Page 3

VM04VM04

TABLE OF CONTENTS

1. SPECIFICATIONS............................................................................ 4

R405

10KB

AD+5

R404

10KB

AD+5

R403

10KB

AD+5

ADGND

2. CONTROLS, INDICATORS AND CONNECTORS.................... 5

3. SERVICE MODE ............................................................................. 6

REPLACING THE BATTERY .............................................................................7

4. EXPLODED VIEW .......................................................................... 8

5. PARTS LIST..................................................................................... 9

6. PCB PATTERN DRAWING......................................................... 11

7. CIRCUIT DIAGRAMS .................................................................. 16

8. BLOCK DIAGRAMS..................................................................... 23

R402

10KB

AD+5

ADGND

NOTES

* Parts List and circuit diagrams are given in this manual to assist the service technician in maintaining the

Model VM04

R401

10KB

AD+5

ADGND

U401

EC12E

B A

DGND

2 1

* The following accessories are supplied with VM04 as the standard accessories.

Owner's manual : 8288440000 AC adaptor AD-9B : 8270818003 (for USA/CND)

: 8270818006 (for EUR) : 8270818007 (for UK) : 8270818010 (for JPN)

* Following is the packing material for the Model VM04.

PACK, SIDE, L, VM04 : 8228446000

AD+5

PACK, SIDE, R, VM04 : 8228447000

AD+5

VR0

VR1

VR2

VR3

<<<<<

1234567891011121314151617

ADGND

VR4

DGND

ADGND

JOG0

JOG1

DGND ADGND

DGND

CARTON, INNER, VM04 : 8228722000 CARTON, OUTER, VM04 : 8228901000

FADER PCB

J401

FPC-17P

To Main J11

CAUTION

Parts marked with this sign are safety critical components. They must always be replaced with identical components. Refer to the Fostex Parts List and ensure exact replacement.

322

Page 4

1. SPECIFICATIONS

DEFINITION (Specification Unit : 0 dBV = 1 Vrms)

NORMAL FADER POSITION

Master fader ........................................................................................................... 80 position (Master Fader display)

Input fader........................................................................................................... 80 position (Channel Fader display)

Effect Send.................................................................................................................................................. 00 position

MIXER SECTION

INPUT 1, 2

Input Level .......................................................................................................................................-50dBV ~ -10dBV

Input Impedance ..................................................................................................................................... 20kΩ or more

Connector................................................................................................................... Ø6 mm Phone Jack/Unbalanced

INPUT 3, 4

Input Level ........................................................................................................................................................-10dBV

Input Impedance ..................................................................................................................................... 20kΩ or more

Connector................................................................................................................... Ø6 mm Phone Jack/Unbalanced

OUTPUT (L, R)

Output Level .....................................................................................................................................................-10dBV

Load Impedance...................................................................................................................................... 10kΩ or more

Connector................................................................................................................... Ø6 mm Phone Jack/Unbalanced

PHONES OUT

Output Level .........................................................................................................................20 mW MAX (16Ω load)

Load Impedance........................................................................................................................................ 16Ω or more

Connector............................................................................................................................ Ø6 mm Stereo Phone Jack

EQUALIZER

HI (Shelving Type) ...............................................................................................±18dB or more (-10dBV / 10 kHz)

LO (Shelving Type) ..............................................................................................±18dB or more (-10dBV / 100 Hz)

FREQUENCY RESPONSE

Input (-10dBV) → Stereo Out (-10dBV)............................................................................. +1, -2dB (20Hz ~ 20kHz)

Input (-50dBV) → Stereo Out (-10dBV)............................................................................. +1, -3dB (20Hz ~ 20kHz)

Input (-10dBV) → Phones Out (20mW/16Ω) ..................................................................... +1, -3dB (20Hz ~ 20kHz)

S/N (with DAT envelope filter)

Input (+2dBV) → Stereo Out (+2dBV)....................................................................................86dB or more (IHF-A)

Input (-38dBV) → Stereo Out (+2dBV)...................................................................................66dB or more (IHF-A)

Input ∑4 (+2dBV) → Stereo Out (+2dBV) .............................................................................. 81dB or more (IHF-A)

Phones Out Phones Out Residual Noise ................................................................................... 66dB or more (IHF-A)

DISTORTION (with DAT envelope filter)

Input (+2dBV) → Stereo Out (0dBV) ..........................................................................0.1% or less (100Hz ~ 10kHz)

Input (-40dBV) → Stereo Out (0dBV) .........................................................................0.1% or less (100Hz ~ 10kHz)

Input (0dBV) → Phones Out (20mW/16Ω) ................................................................................. 1.0% or less (1kHz)

CROSSTALK ................................................................................................................................... 60dB or more (1kHz)

SHOCK NOISE ..................................................................................................................................... -30dBVp-p or less

LEVEL INDICATION

Type ............................................................................................................................................ LCD Bargraph Meter

Number of Indicated Levels ...................................................... 11 dots (-48, -30, -24, -18, -12, -9, -6, -3, -1, 0, OL)

Reference Level (-10dBV) Indication ................................................................................................................ -12dB

DIGITAL SECTION

SAMPLING FREQUENCY ..................................................................................................................................44.1kHz

QUANTIZATION ........................................................................................................................................... 16 bit linear

A/D CONVERTER ......................................................20bit, 64 times Over Sampling Enhanced Dual Bit, Delta-Sigma

D/A CONVERTER .................................................................................... 20bit 128-time, Over Sampling, Delta-Sigma

S/P DIF OUT

Format ......................................................................................................................................... IEC 60958 (S/P DIF)

Connector...........................................................................................................................................................Optical

GENERAL

DC IN AD-9B, DC9V, 650 mA (the Center Positive)

DIMENSIONS................................................................................................................ 254 (W) × 186 (D) × 50 (H) mm

WEIGHT .................................................................................................................................................... Approx. 1.1 kg

POWER SUPPLY

USA/CND ............................................................................................................................................ 120VAC, 60Hz

EUR/UK.......................................................................................................................................... 230VAC, 50/60Hz

JPN 100VAC, 50/60Hz

VM04VM04

D303B

DIODE

S306

R326

NON

KEY0

R325

NON

D+5D+5

L302

LAMP

SEG4 0 SEG3 9 SEG3 8 SEG3 7 SEG3 6 SEG3 5 SEG3 4 SEG3 3 SEG3 2 SEG3 1 SEG3 0 SEG2 9 SEG2 8 SEG2 7 SEG2 6 SEG2 5 SEG2 4 SEG2 3 SEG2 2 SEG2 1 SEG2 0 SEG1 9 SEG1 8 SEG1 7 SEG1 6 SEG1 5 SEG1 4 SEG1 3 SEG1 2 SEG1 1 SEG1 0 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1

SEG[ 1. .40]

SEG3 8 SEG3 7 SEG3 6 SEG3 5 SEG3 4 SEG3 3 SEG3 2 SEG3 1 SEG3 0 SEG2 9 SEG2 8 SEG2 7 SEG2 6 SEG2 5 SEG2 4 SEG2 3

SEG4 0

SEG3 9

SEG3 8

SEG3 7

SEG3 6

SEG3 5

SEG3 4

SEG3 3

SEG3 2

SEG3 1

SEG3 0

SEG2 9

SEG2 8

SEG2 7

SEG2 6

SEG2 5

SEG2 4

SEG2 3

SEG2 2

SEG2 1

SEG2 0

SEG1 9

SEG1 8

SEG1 7

SEG1 6

SEG1 5

SEG1 4

SEG1 3

SEG1 2

SEG1 1

SEG1 0

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

L301

SEG39

SEG3 8

SEG3 7

SEG3 6

SEG3 5

SEG3 4

SEG3 3

SEG3 2

SEG3 1

SEG3 0

SEG2 9

SEG2 8

SEG2 7

SEG2 6

SEG2 5

SEG2 4

SEG2 3

SEG22

COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM13 COM12 COM11 COM10 COM9 SEG3 3 SEG2 8 SEG2 3 SEG1 8 SEG1 3 SEG4 0 SEG3 9 SEG3 8 SEG3 7 SEG1 6

U302

SEG1 0

LCD_FD4

SEG9 SEG8 SEG7 SEG6 COM16 COM15 COM14 COM13 COM12 COM11 COM10 COM9 SEG1 SEG2 SEG3 SEG4 SEG5

LAMP

DGND DGND

SEG40

COM11

COM12

COM13

COM14

COM15

COM16

SEG4063SEG39

SEG221SEG212SEG203SEG194SEG185SEG176SEG167SEG158SEG149SEG1310SEG1211SEG1112SEG1013SEG914SEG815SEG716SEG617SEG518SEG419SEG320SEG221SEG122GND23OSCI

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

COM1

COM2

COM3

COM4

COM5

COM6

COM7

COM13

COM12

COM11

COM10

COM9

SEG3 3

SEG2 8

SEG2 3

SEG1 8

SEG1 3

SEG4 0

SEG3 9

SEG3 8

SEG3 7

SEG1 6

SEG1 0

SEG9

SEG8

SEG7

SEG6

COM16

COM15

COM14

COM13

COM12

COM11

COM10

COM9

SEG1

SEG2

SEG3

SEG4

SEG5

COM[1..16 ]

LCD_D3

LCD_D4

LCD_D5

LCD_D6

LCD_D7

COM1

COM2

COM3

COM4

COM5

COM6

COM7

COM8

COM9

COM10

COM1056COM1157COM1258COM1359COM1460COM1561COM16

U301

SEG11

SEG12

SEG13

SEG14

COM147COM248COM349COM450COM551COM652COM753COM854COM9

HD44780U

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

LCD_D2

KEY1

R324

NON

KEY2

R323

NON

KEY3

R322

NON

KEY4

D+5 D+5 D+5 D+5 D+5 D+5

R321

NON

KEY5

KEY[0..5]

C302

DB241DB342DB443DB544DB645DB7

R301

DGND

0.01

D+5

DB1 DB0 E R/W RS D M VCC CL2 CL1 V5 V4 V3 V2 V1 OSCO

220K

D+5

DGND

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25

R3021KR3031KR3041KR3051KR306

TACT

D303A

DIODE

S305

TACT

D302B

DIODE

S304

TACT

D302A

DIODE

S303

TACT

D301B

DIODE

S302

TACT

D301A

DIODE

FADER ADJ CH1 C H2 CH3 CH4 VIEW

S301

TACT

DIG0

LCD_D1 LCD_D0 E R/W RS

D306B

DIODE

S312

TACT

D305B

DIODE

S311

TACT

D304B

DIODE

S310

TACT

D306A

DIODE

S309

TACT

D305A

DIODE

S308

TACT

D304A

DIODE

RECAL L EFF TYPE EXI T STORE EFF PARAM E NTE R

S307

TACT

DIG1

DGND

KEY0

KEY1

KEY2

KEY3

KEY4

KEY5

DIG0

DIG1

LED_A0

1234567891011121314151617

J302

C301

0.1

DGND

D+5

DGND

LCD_D2

LCD_D3

LCD_D4

LCD_D5

LCD_D6

LCD_D7>

>>>>>>>>>

1234567891011121314151617

J301

5KB

R311

R307

10K

D-12

D356

NON

D355

LED

D354

LED

D353

LED

D352

LED

D351

LED

FADER ADJ CH1 CH2 CH3 CH4

LED_A0

LED_A1

LED_K0

LED_K1

LED_K2

LED_K3

LED_K4

LED_K5

FPC-1 7P

DGND

D+5

R/WRSLCD_D0

LCD_D1

D362

NON

LED_K0

D361

LED

LED_K1

D360

LED

LED_K2

D359

NON

LED_K3

D358

LED

LED_K4

D357

LED

RECAL L EFF TYPE STORE EFF PARAM

LED_K5

LED_A1

LED_A[0..1] DIG[0..1]

LED_K[0..5]

To Mai n J1 3

D-12DGND

D-12

FPC-1 7P

To Main J12

* Specifications and appearance are subject to change without notice for product improvement.

DISPLAY PCB

214

Page 5

INPUT

-10-50

TRIMTRIM

-10-50

32 14

OUTPUT

MIN MAX

PHONESFOOT SW

OUT

S/P DIF

DC IN

RESET

123 45 6 7 8 9

VIEW

CHANNEL EDIT

MASTER4321

MAX

MIN

SCENE No

0 6

1234LR1234

MIN

MAX

EFFHILOPAN

VIEWLEVEL

FADER ADJUST

ENTEREXIT

DATA

STORERECALL

SCENE

PARAMETERTYPE

EFFECT

SETUP

MAX

MIN

MAX

MIN

MAX

MIN

MASTER

12 14 15 16

17 18

10 11

19 20

242522 23

231

VM04VM04

2. CONTROLS, INDICATORS AND CONNECTORS

< REAR PANEL >

PHONE

YKB21-5074

AGND

MASTER L

(-10dBV)

YKB21-5074

231

AGND

L111

BEAD

U112

DTC314TK

1 3

AGND

R115

R114

100K

AGND

C114

10/16

AGND

0.01

C113

A+5

C116

R113

27K

10P

C112

NON

R111

C111

10/16

U111A

NJM2115M

AGND

R112

100K

R116

R213

27K

10P

C213

C115

100/10

AGND

VBIAS3

L211

R215

C214

C212

C211

10/16

BEAD

10/16

NON

MASTER R

J7 231

U111B

R211

100K

YKB21-5074

L121

(-10dBV)

AGND

BEAD

R126

R125

10K

AGND

C125

220/10

L221

C225

BEAD

R226

R225

10K

AGND

220/10

1. DC INLET connector [the Center Positive]

2. S/P DIF optical output connector [Optical]

3. FOOT SW (unlatched) jack [Ø6 mm Phone]

4. Headphone jack [Ø6 mm Stereo Phone]

6. Stereo OUTPUT L/R jacks [Ø6 mm Phone]

7. RESET switch

8. INPUT jacks [Ø6 mm Phone]

9. TRIM knobs

5. Headphone volume control knob

U212

DTC314TK

1 3

AGND

R124

4.7K

10P

R214

100K

AGND

NJM2115M

R212

100K

C215

R216

VBIAS3

C124

100/10

AGND

C127

C121

10/16

AGND

100/10

A+5

C123

NON

C122

10/16

R121

U122A

NJM3414AD

AGND

R123

470

R122

100K

C126

U121

DTC314TK

1 3

AGND

R131A

RK09 K12A

R224

4.7K

10P

C224

100/10

AGND

R127

VBIAS4

C221

(DIP-8PIN)

U122B

NJM3414AD

R223

470

C223

NON

R222

100K

C226

100/10

AGND

C222

10/16

U221

R221

R131B

10/16

RK09 K12A

R227

DTC314TK

1 3

AGND

VBIAS4

AGND

< TOP PANEL >

AOUTL

AOUTR

10K

D11

DAN202K

D+5

MAIN PCB : ANALOG OUT

R95

100K

100/10

U12

DTA114EK

2 3

R94

10K

DGND D-12

DGND

MUTE

10. Contrast control knob

11. FADER ADJUST key

12. LCD display

13. View status indicator

14. SCENE Number display

15. SCENE RECALL key

16. SCENE STORE key

17. EFFECT PARAMETER key

18. EFFECT TYPE key

19. EXIT key

20. ENTER key

21. DATA encoder

22. CHANNEL EDIT key

23. Input faders

24. MASTER fader

25. VIEW key

520

Page 6

3. SERVICE MODE

3-1 Software Version Check

While holding down the EXIT key and ENTER key together, press the EFFECT TYPE key. The LCD Display will show the Software Version of the VM04 for a second, and then return to the Normal Mix mode.

3-2 Battery Check

While holding down the EXIT key and ENTER key together, press the EFFECT PARAMETER key .

· The LCD Display will show the voltage of the memor y backup battery inside the VM04 for a second, and then return to the Normal Mix mode.

· If the voltage falls below 2.2V, the message “BattEmpty” will appear when powering ON.

· If the message “BattEmpty” is displayed, please replace the battery with the new one. For exchanging procedure, please refer to the page 7.

3-3 Display Check

While holding down the EXIT key and ENTER key together, press the VIEW key.

· All the LEDs and LCD segments are supposed to start blinking. Check if they are correctly blinking or not.

· Press the ENTER key would change the blinking pattern.

· If the key other than the ENTER key is pressed, the VM04 returns to Normal Mix mode display.

MASTERCH

Blink

VM04VM04

AIN3-

AIN3+

NJM2115M

U301B

R307 10K

C305

NON

10K

R306

AGND

0.01

C306

R304

NON

C303

A+5

C302

NON

C301

10/16

27K

R301

L301

231

U301A

NJM2115M

AGNDR305

NON

R303

100K

R302

47K

AGNDAGND

BEAD

C307

10/16

AGND

R308

VBIAS3

C403

C406

R404

NON

AIN4+

R407 10K

0.01 84

A+5

C402

C401

10/16

R401

L401

10K

R406

AGND

NON

27K

231

AIN4-

NJM2115M

U401B

C405

NON

U401A

NJM2115M

AGNDR405

NON

R403

100K

R402

47K

AGNDAGND

BEAD

C407

10/16

AGND

R408

VBIAS3

3-4 Fader Check

While holding down the EXIT key and ENTER key together , press the FADER ADJUST key.

· Confirm that each channel parameter value correctly appears on the

2ch1ch 4ch DATA encoder3ch

Character Display.

· Confirm that the SCENE NO. Display value would vary when rotating the DATA encoder.

· If any key is pressed, the VM04 returns to Normal Mix mode display.

3-5 Test Scene RECALL

While holding down the EXIT key and ENTER key together, press the SCENE RECALL key

· There are five Test Scenes (Test 1 ~ Test 5).

· Pressing the ENTER key would step forward the Test Scene.

· Pressing the key other than the ENTER key would return the VM04 to the Normal Mix mode display .

· Each Test Scene is set up as shown in the table below.

CH 1 CH 2 CH 3 CH 4

Level PAN Level PAN Level PAN Level PAN 1~4 ch TEST 1 80 L 80 R 80 L 80 R 80 00 POST TEST 2 80 L 80 R 00 C 00 C 80 00 POST TEST 3 00 C 00 C 80 L 80 R 80 00 POST TEST 480L80L80L80L 80 00 POST -

TEST 500C00C00C00C 80 80 PREDelay

Eff Send

MASTER

MAX

EffectMaster Pre/Post

SCENE NO.

MASTERCH

(-10dBV)

YKB21-5074

INPUT3

AIN1-

AIN1+

NJM2115M

U101B

R109 10K

C105

NON

10K

R108

AGND

0.01

C106

R104

100P

C103

A+5

C102

C101

10/16

18K

R101

NON

R103

R102

R110

20KC

U101A

NJM2115M

AGND

100K

22K

AGNDAGND

C107

220/10

R106

130

R107

100K

100P

C203

VBIAS1

AIN2+

R209 10K

10K

R208

AGND

0.01

C206

R204

A+5

C202

NON

C201

10/16

18K

R201

(-10dBV)

YKB21-5074

INPUT4

AIN2-

NJM2115M

U201B

C205

NON

R210

20KC

U201A

NJM2115M

AGND

R203

100K

R202

22K

AGNDAGND

C207

220/10

R206

130

R207

100K

VBIAS2

TEST 1 Line Check 1~4 Output Level / Frequency Response TEST2 Line Check 1, 2 Output Level(Trim) / Frequency Response / Distortion / S/N(INPUT : Short) TEST 3 Line Check 3, 4 Output Level / Frequency Response / Distortion / S/N(INPUT : Short) TEST 4 Line Check 1~4 S/N(∑4, INPUT : Short) TEST 5 Effect Check 1~4 Only the effect signal (1 Time Delay) is output.

CAUTION: While in the condition that the Test Scene is recalled, please do not turn off the po wer. Otherwise, correct Scene No. cannot be recalled.

L101

BEAD

231

MAIN PCB : ANALOG IN

INPUT1

L201

BEAD

231

YKB21-5074

(-10dBV to -50dBV)

YKB21-5074

(-10dBV to -50dBV)

INPUT2

196

Page 7

VM04VM04

D0D1D2D3D4D5D6

I/O021I/O122I/O223I/O325I/O426I/O527I/O628I/O7

DGND

/OE

CE2

/WE

/CE1

While holding down the

· Pressing the ENTER key would clear the memory and the message “ClearMem!” appear. All the setup will be initialized.

EXIT key and ENTER key together, press the SCENE ST ORE k ey

MASTER

D+5

· Pressing the key other than ENTER returns to the Normal Mix mode display (The

3-6 Memory Clear

A020A119A218A317A416A515A614A713A8

A0A1A2A3A4A5A6A7A8A9A10

[ANA]

AOUTL

AOUTR

0.1

C69

C70

1500P

R80 330

R82 330

R81 330

AIN4-

AIN4+

AIN3-

AIN4-

AIN4+

[ANA]

C61

1500P

C60

R79 330

AIN3+ AOUTL

10/16

AIN3+

C59

0.1

[ANA]

0.1

C58

R71

A+5

76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

AGND

C57

0.01

C56

0.01

C55

0.01

C54

0.01

C53

0.01

C52

0.01

C51

10/16

DZF2 DZF1

AVB

AVSS

AINR-

AINL-

VCO M

AVSS

AVDD

AVB

DVB74DVB

DVSS

DVDD

DZFSET

AOUTR2 AOUTL2

AOUTR1 AOUTL1

VRD AL

AVDD

VRD AH

AINR+

AINL+

VRA DL

VRA DH

TSTI11OPCL2/PDAD3/PDDA4/PD5/RST6TSTIO17TSTIO28TSTIO39DVB10DVB11SDIN212SDAD13SDOUT214SDDA15SDDA216SDOUT317SDOUT118SDIN119SMODE20BCLK21LRCK22CLKO23DVDD24DVSS

/PD_ADDA

/PD_DSP

/RST_DSP

/PD_ADDA

/PD_DSP

[CPU]

FXS_DATA

D0D1D2D3D4D5D6

A0A1A2A3A4A5A6A7A8

/OE60IO061IO162IO263IO364IO465IO566IO667IO7

AK7712A

CLOCK MASTER

R73 330

R72 330

DG_OUT_DATA

AIN34_DATA

ST_DATA

AIN34_DATA

ST_DATA

[DSP]

A851A752A653A554A455A356A257A158A0

DVDD

DVSS

A10 A11 A12 A13 A14 A15 A16 /WE /RASCE /CASRF SO DRDY WRDY SI SCLK DVDD DVSS /WRQ /CS TSTI2 XTO XTI

R74 100

R76 330

R75 100

D+5

MSCK

LRCK

BCK

LRCK

MSCK

BCK

[DSP]

A10

A11

A12

A13

A14

A15

A16

/WE 39 38 37 36 35 34 33 32 31 30 29 28 27 26

C66

0.01

C65

0.01

C64

0.01

C63

0.01

C62

10/16

DGND

LRS

LRCK

UBDA

BLOCK

D+5

C81

0.01

DGND

16.9344MHZ

BCK

DATA6VLDY

C68

22P

C67

22P

COPY

EMPH

C82

10/16

D+5

A92A1031A111A1212A134A1411A157A16

A11

A12

A13

A14

A15

DGND DGND

/CS_DSP _EF F

/WRQ_DSP

[CPU]

1312

U5F

74VHC14

1110

U5E

74VHC14

FS110FS2

VSS

CKS

DO115DO216M117M218IS119IS220CTG121CTG222CTG323FR3224LBIT25CKA126CKA227VDD

TC9271F

R91

100

C83

0.01

123

A16

SCK

[CPU]

DGND

VSS

VCC

TC551001CFT-70L

C77

0.01

C76

10/16

D+5

DGND

R77 100

DRDY_DSP_EF F

WRDY_DSP

[CPU]

Scene No. 00 is displayed.) and the memory will not be initialized.

· Pressing the RESET SW would also clear the memory and the message “ClearMem!” appear.

Gain Table

The value appears in the LCD display corresponds to the gain in dB as shown below.

INPUT F ader

MASTER Fader

EFFECT Send

Value

00 01 05 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 99

Gain (dB)

- ∞

-72.0

-55.0

-42.5

-35.0

-28.75

-23.0

-18.0

-15.5

-13.0

-10.5

-8.5

-7.0

-5.5

-4.0

-2.5

-1.25 0

+1.5 +3.0

+4.67

+6.0

REPLACING THE BATTERY

If the voltage of the inside memory backup battery falls below 2.2V, the message “BattEmpty” will appear when powering ON.

Parts No.:8239120000

CAUTION

· Replacing the battery with the new one would basically initialize the backup data.

· In order to retain the backup data, please replace the battery while powering on.

BATTERY, 3V, CR2032

B001

Value

L10

L9 L8 L7 L6 L5 L4 L3 L2 L1

C R1 R2 R3 R4 R5 R6 R7 R8 R9

R10

PAN

Gain (dB)

Left

0.0

-0.1

-0.25

-0.4

-0.7

-1.0

-1.4

-1.8

-2.2

-2.6

-3.0

-4.2

-5.5

-7.1

-9.0

-11.3

-14.1

-17.6

-23.5

-32.0

- ∞

MASTER

Right

- ∞

-32.0

-23.5

-17.6

-14.1

-11.3

-9.0

-7.1

-5.5

-4.2

-3.0

-2.6

-2.2

-1.8

-1.4

-1.0

-0.7

-0.4

-0.25

-0.1

0.0

MAIN PCB : DSP (EFFECT)

U10

GPIF32T

718

Page 8

4. EXPLODED VIEW

VM04VM04

BTT 3x8 BZn

B 3x8

CZn

C47

C48

1500P

0.1

C41

C40

R56 330

R58 330

R57 330

AIN2-

BTT 3x8 BZn

[ANA]

R55 330

AIN2+

AIN1-

AIN1+

AIN1-

AIN2+

[ANA]

AIN1+

[ANA]

10/16

C39

0.1

C38

R52

76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

C37

C36

C35

C34

C33

C32

DVB74DVB

DZF2 DZF1

AVB

AOUTR2 AOUTL2

AOUTR1 AOUTL1

VRDAL

AVSS

AVDD

VRDAH

AINR-

AINR+

AINL-

AINL+ VCOM

VRADL

AVSS

AVDD

VRADH

AVB

TSTI11OPC L2/PDAD3/PDDA4/PD5/RS T6TSTIO17TSTIO28TSTIO39DVB10DVB11SDIN212SDAD13SDOUT214SDDA15SDDA216SDOUT317SDOUT118SDIN119SMODE20BCLK21LRCK22CLKO23DVDD24DVSS

AGND

0.01

DVSS

DVDD

DZFS E T

AK7712A

/PD_ADDA

/PD_DS P

/RS T_DSP

/PD_ADDA

/PD_DS P

AIN34_DATA

C31

BTT 3x8

BZn

A+5

10/16

[CPU]

AIN34_DATA

/OE60IO061IO162IO263IO364IO465IO566IO667IO7

CLOCK SLAVE

R53 330

R54 330

FXS_DATA

ST_DATA

FXS_DATA

ST_DATA

A851A752A653A554A455A356A257A158A0

DVDD

DVSS

A10

A11

A12

A13

A14

A15

A16

/WE

/RASCE

/CASRF

DRDY

WRDY

SCLK

DVDD

DVSS

/WRQ

/CS

TSTI2

XTO

XTI

MSCK

C46

0.01

C45

LRCK

BCK

C44

LRCK

BCK

[DSP]

C43

C42

D+5

MSCK

0.01

[DSP]

0.01

10/16

DGND

SCK

/CS _DSP_C H

/WRQ_DS P

[CPU]

R51

100

DRDY_DSP _C H

WRDY_DSP

[CPU]

BTT 3x8

BZn

[DSP]

BTT 3x8 BZn

BTT 3x8

BZn

MAIN PCB : DSP (CHANNEL)

178

Page 9

VM04VM04

7. CIRCUIT DIAGRAMS

AIN1+

AIN1-

AIN2+

AIN2-

AIN1+

AIN1-

AIN2+

ANALOG IN

ANA_IN.SCH

DSP(CHANNEL)

DSP_CH.SC H

R39

10K

R38

10K

R37

10K

R36

10K

R35

10K

R34

10K

R33

330

R32

10K

D+5

C15

0.1 DGND

D+5B

U5A

R15

R49

D+5

VR[0 .. 4]

AD+5

VR0

AD+5

1234567891011121314151617

MAIN PCB : CPU

J11

AIN2-

AIN1+

AIN1-

AIN2+

AIN2-

BCK

AIN2-

AIN1-

AIN2-

AIN1-

AIN2+

AIN1+

AIN2+

AIN1+

/RST_DSP

/CS_DSP_CH

/WRQ_DSP

DRDY_DSP_CH

/RST_DSP

/CS_DSP_CH

/WRQ_DSP

DRDY_DSP_CH

WRDY_DSP

/RST_DSP

/WRQ_DSP

/WRQ_ DSP

/RST_D SP

/CS_DSP_EFF

/CS_DSP_CH

/PD_DSP

SCK

AD+5

/PD_ADDA

VR2

VR3

VR4

BATT_VOL

57 58

KEY0

KEY1

KEY2

KEY3

KEY4

KEY5

74VHC14

U5C

1 2

5 6

C21

0.01

DGND

47K

R16

47K

10K

R50

10K

D+5

VR1

VR2

VR3

VR4

ADGND

BCK

LRCK

MSC K

ST_DATA

FXS_DATA

AIN34 _DATA

/PD_DSP

/PD_ADDA

WRDY_DSP

SCK

/PD_DSP

/PD_ADDA

WRDY_DSP

SCK

SOSISCK

/PD_ADDA

/PD_DSP

/WRQ_DSP

R31 100

0.1

C16

ADGND

VR0

VR1 <

VASS

VAREF

P60/AIN050P61/AIN1

P62/AIN2 P63/AIN3 P64/AIN4 P65/AIN5 P66/AIN6 P67/AIN7

VDD P70 P71 P72 P73 P74 P75

P761P772P003P014P025P036P047P058P069P0710P10//INT011P11/INT112P12/INT2/TC113P13//DVO14P14//PPG15P15/TC216P1617P1718P20//INT5//STOP

<><><><><><><><> >

R13

10K

D+5

MUTE

LCD_ D0

LCD_ D1

LCD_ D2

74VHC14

C22

0.01

DGND

ADGNDDGND

JOG0

JOG1

DGND

ADGND

FPC-17P

TO FADER J401

AIN3+

AIN3-

AIN3+

AIN3-

LRCK BCK MSCK AIN34_DATA FXS_D AT A ST_DATA

ST_DATA

/WRQ_DSP

DSP(E FFECT)

DSP_EFF.SCH

/WRQ_DSP

/RST_DSP

R30 100

/RST_DSP

/WRQ_DSP

DRDY_DSP_CH

DRDY_DSP_EFF

>< >

P5346P54

P50/INT3/TC343P51/INT4/TC4

P52//PWM//PDO

LCD_ D3

LCD_ D4

LCD_ D5

LCD_ D6

D+5

DGND

LCD_ D0

<><><><><><><><><<<

1234567891011121314151617

J12

FXS_DATA

AIN34 _DATA

/RST_DSP

/CS_DSP_EFF

/RST_DSP

/CS_DSP_EFF

/RST_DSP

/CS_DSP_EFF

R29

100

/CS_DSP_CH

/CS_DSP_EFF

/PD_DSP >

> 42

P46/SI2

P47/SO2

TMP87CM40AF

JOG_0

LCD_ D7

WRDY_DSP

LCD_ D1

LCD_ D2

LCD_ D3

AIN3+

AIN3-

BCK

LRCK

AIN3+

MSC K

AIN3+

MSC K

/PD_DSP

WRDY_DSP

DRDY_DSP_EFF

/PD_DSP

WRDY_DSP

DRDY_DSP_EFF

/PD_ADDA

/PD_DSP

WRDY_DSP

/CS_DSP_CH

R27 100

R28 100

SCK

/PD_ADDA

P43/SI1

P44/SO1

P42//SCK1

P45//SCK2

><<<<< >

LCD_ E

LCD_ R/W

LCD_ RS

JOG_1

LCD_ D4

LCD_ D5

LCD_ D6

LCD_ D7

LCD_ E

AIN3-

/PD_ADDA

DIG1 >

LCD_ R/W

AIN4+

SOSISCK

DIG0 >

P3633P3734P4035P41

/STOP

LCD_ RS

AIN4-

D+5

AIN4-

SCK

R26 100

D+5

SCK

R12

BEAD

FOOT SW

DGND

ANALOG OUT

231

J10

D-12

ANA_OUT.SCH

P35 P34 P33 P32 P31 P30 VSS XOUT XIN /RESET P22/XTOUT P21/XTIN TEST

D+5B

DAN202K

DGNDD-12

FPC-17P

AOUTL

AOUTR

MUTE

AOUTL

AOUTR

MUTE

AOUTL

AOUTR

A+5

AOUTL

AOUTR

A+5

LED_A0

2SA1050

D+5

32 31 30 29 28 27 26 25 24 23 22 21 20

R99

C99

TO LCD J3 0 1

D+5

R24

DIG0

LED5

LED4

LED3

LED2

LED1

LED0

< <

DTC114EK

U11

DGND

10K

100p

DAN202K

DGND

YKF21-5074

DGND

U5B

100K

D+5B

DAN202K

D10

3 1

DAN202K-1

U5D

74VHC14

9 8

D+5

R96

10K

DTC114EK

R92

6.8K

DGND

KEY0

KEY1

KEY2

KEY3

DGND

1234567891011121314151617

J13

5. PARTS LIST

EXPLODED VIEW

VBIAS2

C94

100/10

C93

0.01

R431KR44

AGND

VBIAS1

C92

100/10

C91

0.01

R411KR42

AGND

LED_A1

2SA1050

R25

DIG1

R23

LED_K5

R22

LED_K4

R21

LED_K3

R20

LED_K2

R19

LED_K1

R18

LED_K0

DGND

8MHZ

33P

C20

C19 33P

DGND

74VHC14

S001

3 4

SKHVL H

DGND

0.01

C18

10/16

DGND

R17

100K

DGND

DIG[0. .1 ]

LED_K[0 .. 5]

R93

2.2K

KEY4

KEY5

DIG0

DIG1

LED_K0

LED_K1

LED_K2

LED_K3

LED_K4

LED_A0

LED_A1

VBIAS3

C96

100/10

C95

0.01

R451KR46

A+5

AGND

No. Part No. Description

1 8212653000 WINDOW, LCD, VM04 2 8226239001 KNOB, FADER, N4.5 3 8212652100 PANEL, TOP, VM04 4 8226238000 KNOB, JOG, FD-4 5 8274167000 PCB ASSY , FADER, VM04 6 8276839615 CABLE, FLAT, FFC, 17P, L150 7 8274166000 PCB ASSY , DISPLA Y, VM04

VBIAS4

C98

100/10

C97

0.01

R471KR48

A+5

AGND

8 8226246001 BUTTON, 7X13, LED 9 8226246002 BUTTON, 7X13, N4.5 10 8216 695000 SHEET, LED, VM04 11 822 1266000 SHIELD, MAIN, VM04 12 821 6 6 9 4 0 0 0 SHIELD, EMI, VM04 13 8274165000 PCB ASSY , MAIN, VM04 14 8239 1 20 0 0 0 BATTERY, 3V, CR2032 15 821 6 69 9 0 0 0 SHEET, BATTERY, VM04 16 82212 6 5100 PANEL, BOTTOM, VM04

U5G

VCC14GND

74VHC14

17 8260561000 Foot, Assy 18 827 0 8 1 8 0 03 AC adaptor, AD-9B, USA/CND

827081800 6 AC adaptor, AD-9B, EUR

C23

0.01

D+5B

DGND

D-12

C11

100/16

DSK10 C

NJM2360

+12V

8.2K

INV

GND

V+6SI

68UH

C10

0.0012UF

100/10

DGND

8274165000 PCB ASSY ,MAIN,VM04

Ref.No. Part No. Description

U001 82365701 0 1 IC, ST, DG, DRIVER, DTC114EK U003 823654130 0 IC, ST, AN, DC-DC, NJM2360AM U004 823608520 1 IC, QFP, DG, CPU, VM04 U005 823654501 4 IC, ST, TSSOP, 74VHC14 U006, 007 8236084 9 0 0 IC, QFP, DG, DSP, AK7712A U008 8236084600 IC, TSOP, SRAM, TC551001CFT-70L U009 82365049 0 0 IC, ST, DG, DIGITAL OUT, TC9271F U010 8245317000 CONN, OPT, TOTX178 U011 82365701 0 1 IC, ST, DG, DRIVER, DTC114EK U012 82365704 01 IC, ST, DG, DRIVER, DTA114EK U013, 014 82365403 01 IC, ST, REGULATOR, NJM78M05DLA U101~401 8236505011 IC, ST, AN, OPAMP, NJM2115M(TEI)

82708180 0 7 AC adaptor, AD-9B, UK 82708180 1 0 AC adaptor, AD-9B, JPN

ICs

U111 82365050 11 IC, ST, AN, OPAMP, NJM2115M(TEI) U112, 212 82365702 01 IC, ST, DG, DRIVER, DTC314TK U121, 221 82365702 01 IC, ST, DG, DRIVER, DTC314TK

BATT _VO L

(To CPU)

C24

10/16

D+5B

AD+5A+5

100/10

0.01

22UH

0.01

AGND ADGNDGND

100/10

C27

0.01

U13

78M05DLA

LED_A[0 .. 1]

0.01

C26

SB05-05CP

10K

DGND

DSK10 C

CR2032

D+5

100/10

DSK10 C

C29

0.01

U14

78M05DLA

DSC10C

3 1

0.01

C28

U122 823603750 0 IC, DIP, AN, NJM3414AD

TRANSISTOR

Ref.No. Part No. Description

Q001, 002 82341008 02 TR, VT, PNP, 2SA1150Y

DIODEs

Ref.No. Part No. Description

D002~004 8234019612 D, VT, DSK10C-ET1 D005 8234019612 D, VT, DSK10C-ET1 D006, 007 823450280 0 D, ST, DAN202K D008 823450280 0 D, ST, DAN202K D009 82345021 0 0 D, ST, SCHOTTKY, SB05-05CP D010 823450280 0 D, ST, DAN202K D011 823450280 0 D, ST, DAN202K

RESISTORs

Ref.No. Part No. Description

R001 8230 50 01 0 3 ST, CARBON, 1/10W, 10K, 5% R002 82305 0 01 04 ST, CARBON, 1/10W, 100K, 5% R003 82305 0 01 09 ST, CARBON, 1/10W, 1, 5% R004 82305 00 1 0 2 ST, CARBON, 1/10W, 1K, 5%

470/16

+12V

231

LED_K5

YKB31-0014

R005 8230 50 0 82 2 ST, CARBON, 1/10W, 8.2K, 5% R006 8230 50 01 0 3 ST, CARBON, 1/10W, 10K, 5% R012 82305 00 1 0 2 ST, CARBON, 1/10W, 1K, 5% R013 8230 50 01 0 3 ST, CARBON, 1/10W, 10K, 5% R015, 016 82 3 05 0 04 7 3 ST, CARBON, 1/10W, 47K, 5% R017 82305 0 01 04 ST, CARBON, 1/10W, 100K, 5% R018~023 823050075 0 ST, CARBON, 1/10W, 75, 5% R024, 025 8230 5001 02 ST, CARBON, 1/10W, 1K, 5%

FPC-17P

TO KEY J302

R026~031 823050010 1 ST, CARBON, 1/10W, 100, 5% R032 8230 50 01 0 3 ST, CARBON, 1/10W, 10K, 5%

Ref.No. Part No. Description

R033 8230500331 ST, CARBON, 1/10W, 330, 5% R034~039 8230500103 ST, CARBON, 1/10W, 10K, 5% R041~046 8230500102 ST, CARBON, 1/10W, 1K, 5% R047, 048 8230500102 ST, CARBON, 1/10W, 1K, 5% R049, 050 8230500103 ST, CARBON, 1/10W, 10K, 5% R051 8230500101 ST, CARBON, 1/10W, 100, 5% R052 8230500100 ST, CARBON, 1/10W, 10, 5% R053, 054 8230500331 ST, CARBON, 1/10W, 330, 5% R055~058 8230500331 ST, CARBON, 1/10W, 330, 5% R071 8230500100 ST, CARBON, 1/10W, 10, 5% R072, 073 8230500331 ST, CARBON, 1/10W, 330, 5% R074, 075 8230500101 ST, CARBON, 1/10W, 100, 5% R076 8230500331 ST, CARBON, 1/10W, 330, 5% R077 8230500101 ST, CARBON, 1/10W, 100, 5% R079~082 8230500331 ST, CARBON, 1/10W, 330, 5% R090 8230500103 ST, CARBON, 1/10W, 10K, 5% R091 8230500101 ST, CARBON, 1/10W, 100, 5% R092 8230500103 ST, CARBON, 1/10W, 10K, 5% R093 8230500222 ST, CARBON, 1/10W, 2.2K, 5% R094 8230500103 ST, CARBON, 1/10W, 10K, 5% R095 8230500104 ST, CARBON, 1/10W, 100K, 5% R096 8230500103 ST, CARBON, 1/10W, 10K, 5% R101, 201 8230500183 ST, CARBON, 1/10W, 18K, 5% R102, 202 8230500223 ST, CARBON, 1/10W, 22K, 5% R103, 203 8230500104 ST, CARBON, 1/10W, 100K, 5% R104, 204 8230500105 ST, CARBON, 1/10W, 1M, 5% R106, 206 8230500131 ST, CARBON, 1/10W, 130, 5% R107, 207 8230500104 ST, CARBON, 1/10W, 100K, 5% R108, 208 8230500103 ST, CARBON, 1/10W, 10K, 5% R109, 209 8230500103 ST, CARBON, 1/10W, 10K, 5% R110, 210 824015401 0 POT, PL, RT9, 20KC, RK09K111 R111, 211 8230500104 ST, CARBON, 1/10W, 100K, 5% R112, 212 8230500104 ST, CARBON, 1/10W, 100K, 5% R113, 213 8230500273 ST, CARBON, 1/10W, 27K, 5% R114, 214 8230500104 ST, CARBON, 1/10W, 100K, 5% R115, 215 8230500102 ST, CARBON, 1/10W, 1K, 5% R116, 216 8230500102 ST, CARBON, 1/10W, 1K, 5% R121, 221 8230500102 ST, CARBON, 1/10W, 1K, 5% R122, 222 8230500104 ST, CARBON, 1/10W, 100K, 5% R123, 223 8230500471 ST, CARBON, 1/10W, 470, 5% R124, 224 8230500472 ST, CARBON, 1/10W, 4.7K, 5% R125, 225 8230500103 ST, CARBON, 1/10W, 10K, 5% R126, 226 8230500100 ST, CARBON, 1/10W, 10, 5% R127, 227 8230500102 ST, CARBON, 1/10W, 1K, 5% R131 8240168003 POT, PI, RT 9, 50KAA, RK09K12A R301, 401 8230500273 ST, CARBON, 1/10W, 27K, 5% R302, 402 8230500473 ST, CARBON, 1/10W, 47K, 5% R303, 403 8230500104 ST, CARBON, 1/10W, 100K, 5% R304, 404 8230500000 ST, CARBON, 1/10W, 0, 5% R306, 406 8230500103 ST, CARBON, 1/10W, 10K, 5% R307, 407 8230500103 ST, CARBON, 1/10W, 10K, 5% R308, 408 8230500102 ST, CARBON, 1/10W, 1K, 5%

Ref.No. Part No. Description

C001 8232143477 VT , ALU, 16V, 470µF, 20% C002 8232142107 VT , ALU, 10V, 100µF, 20% C003, 004 8233504103 ST, CER, 25V, 0.01µF, 10% C005 8232142107 VT , ALU, 10V, 100µF, 20% C006 8233504103 ST, CER, 25V, 0.01µF, 10% C007 8232142107 VT , ALU, 10V, 100µF, 20% C008 8232142107 VT , ALU, 10V, 100µF, 20% C009 8232143107 VT , ALU, 16V, 100µF, 20% C010 8233500122 ST, CER, 50V, 0.0012µF, 10% C011 8232143107 VT , ALU, 16V, 100µF, 20% C015 8233502104 ST, CER, 50V, 0.1µF, +80 C016 8233502104 ST, CER, 50V, 0.1µF, +80 C018 8232143106 VT , ALU, 16V , 10µF, 20% C019, 020 8233500330 SAP, ST, CER, 50V, 33pF, 5% C021, 022 8233504103 ST, CER, 25V, 0.01µF, 10% C023 8233504103 ST, CER, 25V, 0.01µF, 10% C024 8232143106 VT , ALU, 16V , 10µF, 20% C025 8233500101 ST, CER, 50V, 100pF, 5%

RESISTORs

CAPACITORs

ALU = Electrolytic

CER = Ceramic type

916

Page 10

VM04VM04

CAPACITORs

ALU = Electrolytic

CER = Ceramic type

Ref.No. Part No. Description

C026~029 8233504103 ST, CER, 25V, 0.01µF, 10% C031 8232143106 VT , ALU, 16V, 10µF, 20% C032~037 8233504103 ST, CER, 25V, 0.01µF, 10% C038, 039 8233502104 ST, CER, 50V, 0.1µF, +80 C040 8232143106 VT , ALU, 16V, 10µF, 20% C041 8233502104 ST, CER, 50V, 0.1µF, +80 C042 8232143106 VT , ALU, 16V, 10µF, 20% C043~046 8233504103 ST, CER, 25V, 0.01µF, 10% C047, 048 8233500152 ST, CER, 50V, 0.0015µF, 5% C051 8232143106 VT , ALU, 16V, 10µF, 20% C052~057 8233504103 ST, CER, 25V, 0.01µF, 10% C058, 059 8233502104 ST, CER, 50V, 0.1µF, +80 C060 8232143106 VT , ALU, 16V, 10µF, 20% C061 8233502104 ST, CER, 50V, 0.1µF, +80 C062 8232143106 VT , ALU, 16V, 10µF, 20% C063~066 8233504103 ST, CER, 25V, 0.01µF, 10% C067, 068 8233500220 ST, CER, 50V, 22pF, 5% C069, 070 8233500152 ST, CER, 50V, 0.0015µF, 5% C076 8232143106 VT , ALU, 16V, 10µF, 20% C077 8233504103 ST, CER, 25V, 0.01µF, 10% C081 8233504103 ST, CER, 25V, 0.01µF, 10% C082 8232143106 VT , ALU, 16V, 10µF, 20% C083 8233504103 ST, CER, 25V, 0.01µF, 10% C091 8233504103 ST, CER, 25V, 0.01µF, 10% C092 8232142107 VT , ALU , 10V, 100µF, 20% C093 8233504103 ST, CER, 25V, 0.01µF, 10% C094 8232142107 VT , ALU , 10V, 100µF, 20% C095 8233504103 ST, CER, 25V, 0.01µF, 10% C096 8232142107 VT , ALU , 10V, 100µF, 20% C097 8233504103 ST, CER, 25V, 0.01µF, 10% C098 8232142107 VT , ALU , 10V, 100µF, 20% C101, 201 8232143106 VT, ALU, 16V, 10µF, 20% C103, 203 8233500101 ST, CER, 50V, 100pF, 5% C106, 206 8233504103 ST, CER, 25V, 0.01µF, 10% C107, 207 8232142227 VT, ALU, 10V, 220µF, 20% C111, 211 8232143106 VT, ALU, 16V, 10µF, 20% C113, 213 8233500100 ST, CER, 50V, 10PF, 5% C114, 214 8232143106 VT, ALU, 16V, 10µF, 20% C115, 215 8232142107 VT, ALU, 10V, 100µF, 20% C116 8233504103 ST, CER, 25V, 0.01µF, 10% C121, 221 8232143106 VT, ALU, 16V, 10µF, 20% C122, 222 8232143106 VT, ALU, 16V, 10µF, 20% C124, 224 8233500100 ST, CER, 50V, 10pF, 5% C125, 225 8232142227 VT, ALU, 10V, 220µF, 20% C126, 226 8232142107 VT, ALU, 10V, 100µF, 20% C127 8232142107 VT , ALU , 10V, 100µF, 20% C301, 401 8232143106 VT, ALU, 16V, 10µF, 20% C306, 406 8233504103 ST, CER, 25V, 0.01µF, 10% C307, 407 8232143106 VT, ALU, 16V, 10µF, 20%

MISCELLANEOUS

Ref.No. Part No. Description

B001 8239121000 HOLDER, BATTERY, BCR20H4 E801 8239120000 BATTERY, 3V, CR2032 J001 8245544000 CONN, DC INLET, YKB31-0014 J002~005 8245339004 CONN, JACK, PHONE, YKB21-5074 J006, 007 8245339004 CONN, JACK, PHONE, YKB21-5074 J008 8245339004 CONN, JACK, PHONE, YKB21-5074 J010 8245339004 CONN, JACK, PHONE, YKB21-5074 J011 8245272017 CONN, PI, JACK, FPC 17P J012 8245272017 CONN, PI, JACK, FPC 17P J013 8245272017 CONN, PI, JACK, FPC 17P L002 8242196223 COIL, PVT, 22µH, 5%, LF5.0S L003 8242214031 COIL, PVT, 68µH, 5%, ELES L004 8242501121 FILTER, EMI, 120, 25%, MMZ2012S L101~401 8242501121 FILTER, EMI, 120, 25%, MMZ2012S L111, 211 8242501121 FILTER, EMI, 120, 25%, MMZ2012S L121, 221 8242501121 FILTER, EMI, 120, 25%, MMZ2012S S001 8253469000 SW, PLT, TACT, SKHVLH X001 8256134003 RESONATOR, PF, CER, 8.00MHZ X002 8256170004 RESONATOR, ST, XTL, 16.9344MHZ Y1501 8245340000 NUT, PHONEJACK

8251972201 Plain PCB, MAIN, VM04

8274165000 PCB ASSY , DISPLA Y , VM04

ICs

Ref.No. Part No. Description

U301 8236083600 IC, QFP, DG, LCD DRIVER, HD44780 U302 8256176000 MODULE, DISPLAY, LCD, FD-4

DIODEs

Ref.No. Part No. Description

D301~306 8234502800 D, ST, DAN202K D351 8234504001 OPT, VT , LED, RED, LT3D31W D352 8234504003 OPT, VT , LED, YLW, L T3H31W D353 8234504003 OPT, VT , LED, YLW, L T3H31W D354 8234504003 OPT, VT , LED, YLW, L T3H31W D355 8234504003 OPT, VT , LED, YLW, L T3H31W D357 8234504004 OPT, VT , LED, GRN, LT3E31W D358 8234504003 OPT, VT , LED, YLW, L T3H31W D360 8234504001 OPT, VT , LED, RED, LT3D31W D361 8234504003 OPT, VT , LED, YLW, L T3H31W

RESISTORs

Ref.No. Part No. Description

R301 8230500224 ST, CARBON, 1/10W, 220K, 5% R302~306 8230500102 ST, CARBON, 1/10W, 1K, 5% R307 8230500752 ST, CARBON, 1/10W, 7.5K, 5% R311 8240151004 POT, PI, RT9, 5KB, L20, RK09K113 R321~326 8230500103 ST, CARBON, 1/10W, 10K, 5%

CAPACITORs

CER = Ceramic type

Ref.No. Part No. Description

C301 8233502104 ST, CER, 50V, 0.1µF, +80 C302 8233504103 ST, CER, 25V, 0.01µF, 10%

MISCELLANEOUS

Ref.No. Part No. Description

J301, 302 8245272117 CONN, PL, JACK, FPC, 17P L301, 302 8239116000 LAMP, 5V, 75MA S301~312 8253135002 SW, PT, TACT, SOR-112HS Y301 8212611000 PLATE, REFLECT, LCD, FD-4

8251972102 Plain PCB, DISPLAY, VM04

8274167000 PCB ASSY , FADER, VM04

Ref.No. PartNo. Description

U401 8253466000 SW, PI, ENCODER, EC12E

RESISTOR

Ref.No. PartNo. Description

R401~405 8240274005 POT, PI, SL30, 10KB, RS30H111

MISCELLANEOUS

Ref.No. PartNo. Description

J401 8245272117 CONN, PL, JACK, FPC, 17P

8251972003 Plain PCB, FADER, VM04

U401

R405

R404

R403

R402

R401

FADER PCB : PARTS SIDE

J401

8251972 003

F ADER, VM04

U401

FADER PCB : FOIL SIDE

R401

R402

R403

R404

R405

J401

17 1

1510

Page 11

DISPLAY PCB : FOIL SIDE

S302

DISPLAY, VM04

8251972 102

D301

D352

D353

S303

D354

S304

J302 KEY J301 LCD

D355

S305

R321

R322

D303

R323

R324

R325

R326

D356

S306

D359

D306

S312 S309

D362

D302

R307

D351

S301

R311

R306

R305

R303

R304

L301

4180

R302

R301

U301

C302

4164

U302

D305

S308

D358

S311

D361

D304

C301

L302

S307

D357

S310

D360

40 1

MAIN PCB : PARTS SIDE

C24

D2D3D5

U14

C28 C29

U10

U13

C26 C27

C82

C83

C225 C125

R12 L4

R13

C127

R91

C81

R224 R223

C224 C223

U122

C124 C123

R124

R123

R225

R226

L221

C226

R122

C126

R125

C23

R126

R92

R222

L121

R96

R227

R127

C222

C122

C121

R221

C98

R121

C11

R131

R50 R49

U221

U121

C221

R214

C96

R23

R17

Q2 Q1

D10 U11

C214

TO FADER

R19

R20

R21

R22

R211

R216

R212

C215

U212

L211

R215

TO KEY

R18

D11

C211 C111

C212

R213

C213

C114

R114

R112

U12

U111

R115

C116

J13

J11

R95

R111

C112

C113

U112

C16

R94

R116

C115

R113

L111

R408

C407

R405

C403

J12

R404

C406

C402

U401

R401 L401

TO LCD

R403

C401

R402 R301 L301

R407

C405

C18

R308

R303

C301

R302

C25

C17

R90

C307

R305

C303

6. PCB PATTERN DRAWING

8251972 200

MAIN, VM04

R51

R55

C106

U101

C40

C105

C41

R110

R53 R54

C38

R109

C62

C306

C302

R304

U301

R307

C51

C305

R71

R43

C94 C201

R202

80 90 100

C70 C69

R82

R81

C203

R201

R77

R80

R204

R79

C202

L201

C60

R76 R75 R74 R73

R72

C58

C61

C206

U201

R209

C205

R102

C207 C107

R210

R52

C31

R41

C103

C92 C101

R101

C42

C48 C47

80 90 100

R58

R57

R56

R104

C102

L101

1114

J10 J8

J7 J6

J5 J4 J3 J2

VM04VM04

Page 12

MAIN PCB : FOIL SIDE

R109

C38

R54 R53

C213

C211 C111

R18

R213

L211

R212

R19

R211

R20

J7 J6

R131

C96

R215

R214

C214

U212

C215

R216

Q2 Q1

C221

U121

U221

D10 U11

R17

C11

R23

R21

R22

TO FADER

R49 R50

L121

R221

R121

C121

C122

C222

R222

C98

R227

R127

R96

R92

C23

R126

C126

R122

C226

R125

L221

R226

R123

R225

R124

C124 C123

U122

C224 C223

R224 R223

C81

J10 J8

U10

C83

C82

C26 C27

R12 L4

C225 C125

C127

R13

C24

R91

U13

U14

C28 C29

J5 J4 J3 J2

C92 C101

R41

R102

R209

R72 R73 R74 R75 R76

R210

C207 C107

C302

R302

C405

U401

R407

C301

C303

R303

C18

C406

R404

J12

R90

R305

C307

R308

C25

C17

C58

C205

U201

C206

C61

C60

L201

C202

R79

R204

R80

R77

R202

R201

C305

U301

R307

C94 C201

C203

R43

R82

R81

C70 C69

80 90 100

R71

C62

C306

R304

C51

C402

R115

R401 L401

R402 R301L301

L111

U112

R113

C401

C403

R405

C407

R408

R403

C115

R111

R116

R95

TO LCD

R94

R114

C114

C116

C113

C112

U111

C212

R112

D11

U12

J13

TO KEY

J11

C16

R110

L101

C102

R57

R104

R58

C48 C47

80 90 100

R101

C103

C31

R52

C42

C41

C105

C40

U101

C106

R55

R51

R56

MAIN, VM04

8251972 200

DISPLAY PCB : PARTS SIDE

U302

R311

L301 L302

D351

S301

D357

S307 D358

S308

D360

S310

D361

S311

1312

D352

S302

J301

(LCD)

D353

S303

D354

S304

D355

S305

J302 (KEY & LED)

D356

S306

D359

S309

D362

S312

VM04VM04

Fostex VM-04 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual