JVC GR-DVL355EG, GR-DVL355EK, GR-DVL357EG, GR-DVL357EK, GR-DVL555EG Schematics

SECTION 4

CHARTS AND DIAGRAMS

NOTES OF SCHEMATIC DIAGRAM

Safety precautions The Components identified by the symbol are

critical for safety. For continued safety, replace safety critical components only with manufacturer's recommended parts.

1. Units of components on the schematic diagram

Unless otherwise specified.

1) All resistance values are in ohm. 1/6 W, 1/8 W (refer to parts list). Chip resistors are 1/16 W.

K: KØ (1000Ø), M: MØ (1000KØ)

2) All capacitance values are in µF, (P: PF).

3) All inductance values are in µH, (m: mH).

4) All diodes are 1SS133, MA165 or 1N4148M (refer to parts list).

2. Indications of control voltage

AUX : Active at high.

AUX or AUX(L) : Active at low.

4. Voltage measurement

1) Regulator (DC/DC CONV) circuits REC : Colour bar signal. PB : Alignment tape (Colour bar). — : Unmeasurable or unnecessary to measure.

4) Indication on schematic diagram Voltage Indications for REC and PB mode on the schematic diagram are as shown below.

REC mode

12 3

2.5

(5.0)

PB mode

1.8

PB and REC modes (Voltage of PB and REC modes are the same)

Note: If the voltages are not indicated on the schematic

diagram, refer to the voltage charts.

5. Signal path Symbols

The arrows indicate the signal path as follows.

NOTE : The arrow is DVC unique object.

Playback signal path

3. Interpreting Connector indications

1

2

Removable connector

3

1

2

Wire soldered directly on board

3

1

Non-removable Board connector

2

3

1

2

4

Board to Board

3

Connected pattern on board The arrows indicate signal path

Playback and recording signal path

Recording signal path (including E-E signal path)

Capstan servo path

Drum servo path

(Example)

R-Y

Playback R-Y signal path

Y

Recording Y signal path

6. Indication of the parts for adjustments

The parts for the adjustments are surrounded with the circle as shown below.

7. Indication of the parts not mounted on the circuit board

“OPEN” is indicated by the parts not mounted on the circuit board.

S40889-01

R216

OPEN

4-1

CIRCUIT BOARD NOTES

1. Foil and Component sides

1) Foil side (B side) : Parts on the foil side seen from foil face (pattern face) are indicated.

2) Component side (A side) : Parts on the component side seen from component face (parts face) indicated.

2. Parts location guides

Parts location are indicated by guide scale on the circuit board.

LOCATION

IC

Category : IC

Horizontal “A” zone

Vertical “6” zone

(A : Component side)

D : Discrete component)

B : Foil side

C : Chip component

REF No.

IC101 B C 6 A

Note: For general information in service manual, please

refer to the Service Manual of GENERAL INFORMATION Edition 4 No. 82054D (January 1994).

4-2

S40889-01

4.1 BOARD INTERCONNECTIONS

NOTE

)

: The number of patch cords

are indicated by interconnected.

JUNCTION

ZOOM UNIT

(

)

Page 4-41

VTR CPU

(

)

Page 4-9

YTU94074-15 YTU94077-15

VPPC

RESET

YTU94074-20 YTU94077-20

CN5001

MDA 3.0V

5

YTU94074-24 YTU94077-24

OP DRIVE

(

)

4

Page 4-25

(

Page 4-37

OP DRIVE

VDCVF DS

)

TG/VDRV

(

)

Page 4-27

MDA 3.0V

(

)

REG 2.5V

(

)

Page 4-23

VC0

INV

VTR CPU

VC2

VC3

VC1

BLKA

BLKB

BLKC

Page 4-11

VTR CPU

(

Page 4-13

)

PD L

GND/DR_GND

(

Page 4-38

)

(

)

Page 4-17

CAM DSP

(

)

Page 4-15

INV

INH

VTR CPU

XI164SEL

YTU94074-6 YTU94077-6

B SEL

ZOOM

CHRG LED

S DET

EXT V IN

Page 4-19

POW LED

XI164SEL

JIG

RESET

VTR CPU

D GAIN

SDET

VDC

B SEL

)

VTR CPU

D GAIN

INV

VC0

VC1

VC2

1413

3

(

Page 4-33

)

Page 4-35 (

MONITOR

(

Page 4-33

B/W VF

(

Page 4-40

GND

SD WP

)

GND (

VSS

VDCVF-DS

DSC/USB

(

)

Page 4-31

MMC CD

)

MMC CD

VDCVF DS

MON G

REG_4.8V

)

2

MODULE

)

MONITOR

(

YTU94109-33

YTU94129A-33

VFREG4.8

BW Y

CVF G

VD

HD

NSLEED

BW VDD

ANA IN

(

Page 4-21

OP DRIVE

MMC CD

INV

A CSYNC

)

EXT V IN

VC3

BLKB

BLKA

BLKC

(

)

Page 4-5

INV

SDTIN

A CSYNC

JIG

JLIP_RX

(

Page 4-7

JLIP_TX

)(

LCD

VD

HD

NC

BW Y

NSLEEP

NCNCNC

1

LCD (B/W-VF) MODULE

YTU94074-20

NC

YTU94077-20

(

)

Page 4-39

VDC

(

Page 4-29

)

(

DC INPUT CONN.

)

LCD (C-VF) MODULE

DC LIGHT

y10185001a rev0

ABCD EFGH

4-3 4-4

4.2 SYSCON SCHEMATIC DIAGRAM

NOTES :

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

TO VTR CPU

TO VTR CPU PC IF

TO REG

,

MAIN(SYSCON

)

5

JIG CONN.

TO REG

TO JACK CN501

TO JACK CN502

(

)

RESET DET

VCC

VOUT

NC

GND

TO DSC/USB

TO MONITOR CN761

4

TO PC IF

C

,

TO CAM DSP

,

AUDIO,TG/VDRV OP DRIVE

,

TO CAM DSP ANA IN

TO

3

ANA IN

UPD703039F1-A03

TO CAM DSP

TO REG

TO REAR UNIT CN1

C

TO TG/VDRV

TO CAM DSP

TO TG/VDRV

TO REG

TO AUDIO

TO MONITOR CN761

2

TO OP DRIVE

TO JUNCTION CN571

TO ZOOM UNIT

TO CAM DSP

TO AUDIO

TO CAM DSP

TO VOUT

1

NO WEAR

4-5 4-6

y10186001a rev0

HGFEDCBA

4.3 PC IF SCHEMATIC DIAGRAM

NOTES :

5

MAIN(PC IF

)

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

4

3

2

1

TO SYSCON

TO REG

2SC4617/RS/-X

RB501V-40-X

TO JACK CN501

JIG CONN.

NO WEAR

ABCD EFGH

4-7 4-8

y30121001a rev0

4.4 VTR CPU SCHEMATIC DIAGRAM

NOTES :

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

TO REG

MAIN(VTR CPU

)

TO REG

5

TO CAM DSP

TO DV MAIN

,

TO DV MAIN PRE/REC

JIG CONN.

TO JUNCTION CN571

4

YQ44882A

MN10316KJJ MN1030F04KYBJJ

TO ROTARY ENCODER SW

TO MDA

TO JUNCTION CN571

TO PRE/REC

3

2

1

TO SYSCON

TO REG

TO MDA

TO DV MAIN

1k

TO DV MAIN

TO TG/VDRV

SN74AHC2G53T

MN103016KJJ

JIG CONN.

TO ROTARY ENCODER SW

NO WEAR

4-9 4-10

TO REG

y10188001a rev0

HGFEDCBA

4.5 MDA SCHEMATIC DIAGRAM

NOTES :

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

5

4

TO VTR CPU

TO REG

TO VTR CPU

TO JUNCTION CN571

MAIN(MDA

)

TO REG

TO VTR CPU

TO REG

TO VTR CPU

TO CAPSTAN MOTOR

3

270

TO JUNCTION CN571

TO VTR CPU

TO JUNCTION CN571

2

TO JUNCTION CN571

1

NO WEAR

ABCD EFGH

4-11 4-12

y20123001a rev1

4.6 AUDIO SCHEMATIC DIAGRAM

NOTES :

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

AUDIO

TO MONITOR CN761

5

TO DV MAIN

R

4

R

TO INT MIC

R

L

R

L

R

L

TO SYSCON

TO REG

3

L

R

L

R

L

R

L

R

L

TO JACK CN502

2

L

1

NO WEAR

3.3k

TO SYSCON TO CAM DSP

TO SYSCON

y20124001a rev0

4-13 4-14

HGFEDCBA

4.7 DV MAIN SCHEMATIC DIAGRAM

NOTES :

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

MAIN(DV MAIN

)

5

TO REG

TO CAM DSP ANA IN

C

Y

C

4

Y

C

Y

C

Y

TO CAM DSP

TO CAM DSP ANA IN

TO CAM DSP

TO AUDIO

TO V TR CP U

TO TG/VDRV

3

2

JIG CONN.

TO PRE/REC

1

TO CAM DSP

NO WEAR

ABCD EFGH

4-15 4-16

y10196001a rev0

4.8 PRE/REC SCHEMATIC DIAGRAM

NOTES :

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

5

TO VTR CPU

JIG CONN.

4

TO CAM DSP

TO HEAD

3

TO DV MAIN

2

TO REG

1

NO WEAR

4-17 4-18

y20126001a rev0

HGFEDCBA

4.9 V OUT SCHEMATIC DIAGRAM

NOTES :

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

5

TO REG

C

4

TO ANA IN

Y

C

Y

C

Y

C

TO ANA IN

TO JACK CN502

Y

C

3

Y

C

CC

TO CAM DSP

C

2

TO SYSCON

C

NO WEAR

UMT2N

With ANALOG INPUT

C

y30123001a rev0

Without ANALOG INPUT

1

ABCD EFGH

4-19 4-20

ANA IN SCHEMATIC DIAGRAM [GR-DVL557EG]

4.10

NOTES :

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

5

TO CAM DSP

MAIN(ANA IN

)

C

Y

C

4

TO SYSCON

TO V OUT

C

Y

C

Y

3

Y

C

Y

C

2

R3905

0

C

Y

C

Y

C

Y

C

TO REG

1

Y

C

TO TG/VDRV

TO SYSCON DV MAIN

TO CAM DSP

TO SYSCON CAM DSP

TO CAM DSP

TO DV MAIN

,

Y

C

Y

C

TO DV MAIN

NO WEAR

4-21 4-22

y20127001a rev0.1

HGFEDCBA

4.11 CAM DSP SCHEMATIC DIAGRAM

NOTES :

For the destination of each signal and further line connections that are cut off from this diagram,refer to "4.1 BOARD INTERCONNECTIONS". When ordering parts, be sure to order according to the Part Number indicated in the Parts List.

TO TG/VDRV

MAIN(CAM DSP

)

CY

YC

CY

YC

CY

CN101

TO MO NITOR CN761

5

TO DV MAIIN

YC

TO CCD CN5001

CY

4

Y

B-Y

R-Y

TO SYSCON,DV MAIN

TO DV MAIN

TO OP DRIVE

TO ANA IN

TO PRE/REC

TO DV MAIN

TO PRE/REC

TO SYSCON

Y

3

VC0 VC1

VC2

TO ANA IN

BLKA

BLKC

BLKB

VC3

100

YC

2

TO OP DRIVE,VTR CPU

TO OP DRIVE

C

TO AUDIO

Y

R-Y

B-Y

YC

B-Y

R-Y

C

Y

B-Y

YC

TOVOUT

C

TO REG

Y

R-Y

Y

YC

TO DSC/USB

TO MONITOR CN761

JIG CONN.

1

R4303 R4304

TO REG

y10190001a rev0

ABCD EFGH

4-23 4-24