JVC GY-DV300U Diagram

SECTION 4

CHARTS AND DIAGRAMS

 SCHEMATIC DIAGRAM NOTES

• Schematic safety precaution

! Parts are safety related parts. When replacing them, be sure to use the specified parts.

• Voltage and waveform measurements

Voltage: Measured with digital voltmeter in DC range;

iris closed in REC mode. Value in ( ) is indicated only in the case PB voltage is different from that in REC mode.

Waveform: Gray scale illuminated at more than 2000 lux at

3200K lighting.

• Unit of value

Unless otherwise specified

1) Resistance is in Ω (1/6 W)

2) Capacitance is in µF

3) Inductance is in µH

• Expression of wiring

As the following circuit diagram is divided to print on some sheets, such an indication as the following is found in the case the wiring extends over two or more divided sections.

1) Circuit diagram divided into two or more sections:

• Wiring of connector

(Example)

16

To DV MDA CN5506 Page 4-30

CAM SW3

CAM SW2

In the above example, CN2 is connected with CN5506 on

CN2

20

19

16 DV MDA board.

• Signal flow on the diagram

The following allow marks indicate the specified signal paths respectively.

: Recording or EE signal path : Playback signal ptah : Recording and Playback signal path

Board Board Name

02 03

A)

In the above case, the end of the wiring is connected to the “HID 3” on the “sheet 2” section of the diagram.

MAIN A/L/S

This indication that wiring extends to “sheet 2” of the diagram.

Pg2

HID3

Signal name

Number of

divided sections

1/11 – 11/11

1/4 –4/4

• Others

In regard of a board assembly whose circuit is composed of multilayered board patterns such 4- or 6-layered patterns, board patterns of the inner layers are omitted in this section.

Note: For detail of each electrical part, refer to Section 6

“ELECTRICAL PARTS LIST” by it symbol number.

4-1

 REPLACING SURFACE MOUNT “CHIP” COMPONENTS

• Some resistors, shorting jumpers (0 resistance), ceramic capacitors, transistors, and diodes are chip parts. These chip parts cannot be reused after they are once removed.

• Chip resistors used in some circuits are of high precision type having little error in resistance. To demonstrate the full capacity of this set, place an order for proper parts referring to the diagrams and parts lists in the section 5.

• Soldering cautions:

1) Do not apply heat for more than 3 seconds.

2) Avoid using a rubbing stroke when soldering.

3) Discard removed chips; do not reuse them.

4) Supplementary cementing is not required.

5) Use care not to scratch or otherwise damage the chips.

[2] Chip transistors and chip F.E.T.s

2SA 2SB

C

BE

2SC 2SD

(Top view) (Top view)

2SJ2SK

G

C

BE

G

 CHIP PARTS PIN ARRANGEMENT

[1] Digital transistors

DTC 1

1 2 3

C

R1

R2

BE

DTA 1 DTB 1

1 2 3

C

R1

R2

BE

(Top view) (Top view)

Two digits show resistance of R1 in abbreviation.

1

43 : 4.7 kΩ 14 : 10 kΩ 24 : 22 kΩ 44 : 47 kΩ

Roman letter show the resistive ratio between R1 and R2

2

in abbreviation.

E : R2/R1 = 1/1 Y : R2/R1 = 5/1 W : R2/R1 = 2/1 X : R2/R1 = 1/2 T : R2 is opened.

Symbol the shape of resistor in abbreviation.

3

SD

(Top view) (Top view)

[3] Chip diodes

MA143A/MA742 MA142WA MA142A

(Top view)(Top view) (Top view)

4-2

4.1 BOARD LOCATIONS

01 IS

20 IRIS

10 FOCUS

02 MAIN

RIGHT SIDE

06 REG03 A/L/S

15 JOG

07 SWR

04

MONITOR BL

11 M RELAY

06 REG

15 JOG

07 SWR

14 PON

22 LOCK 05 INPUT1

12 TALLY

19 EJECT2

09 ZOOM

18

EJECT1

17

REC TRG

18 EJECT1

REAR SIDE LEFT SIDE

13 CONNECT

21 TEMP

16 DV MDA

19 EJECT2

09 ZOOM

Board

No.

–

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22

Board Name

OVERALL IS MAIN A/L/S MONITOR BL INPUT1 REG SWR TOP ZOOM ZOOM FOCUS M RELAY TALLY CONNECT P ON JOG DV MDA REC TRG EJECT1 EJECT2 IRIS TEMP LOCK

Block diagram

–

4-36

4-36, 38

4-37,38

– – – – – – – – – – – –

4-38

– – – – – –

Page of diagram

Schematic diagram

4-4

4-24

4-5 to 4-15

4-18 to 4-21

4-33 4-32 4-28 4-32 4-32

4-4 4-4

4-33

4-4

4-27

4-4 4-4

4-30

4-4 4-4 4-4 4-4 4-4 4-4

Circuit board

– 4-25, 26 4-16, 17 4-22, 23

4-35 4-35 4-29 4-34 4-34 4-34 4-35 4-35 4-34 4-34 4-27 4-34 4-35 4-31 4-35 4-35 4-35 4-35 4-35

08 TOP ZOOM

TOP SIDE

4-3 4-3

4.2 OVERALL WIRING GIAGRAM

CP3V

TEMP SENS

DGND

For servicing

NC

S1

Page 4-27

A

Page 4-28

Page 4-24

DV MDA

Page 4-30

Page 4-5 to 4-15

R1

10k

TH1 10k

A

Page 4-32

S1

A/L/S

Page 4-18 to 4-21

Page 4-32

P ON

DGND

JOG A JOG B JOG SW DGND

TRIG LENS DGND

R1

2.2k

1

6

4

3

D1

S1

QSW0603-001

A

B

SW2

S1

1

2

COM

SW1

2

3

5

R1 220

LD1

LD2

Page 4-33

KA-DV300U : OPTION

+5V

TALLY

Page 4-33

Page 4-32

4-4 4-4

IRIS AUTO

FOCUS AUTO

FOCUS MODE

DGND

NC

IRIS JOG DIR IRIS JOG IN

GND

EJECT

DGND CASS COVER

DGND

D3V ZOOM DGND

S1

S2

S3

S1

VR1

SC92716

4.3 MAIN BOARD SCHEMATIC DIAGRAM

1/11 (PRE/REC

)

FROM/TO ROTALY TRANS OF DRUM ASSEMBLY

4-5 4-5

SC92711-1

MAIN BOARD SCHEMATIC DIAGRAM 2/11 (MSD

)

To DV MDA CN5506 Page 4-30

MSD CPU

IC3

PLSC1404

OPEN

FROM/TO DV MECHANISM ASSEMBLY

Q1

TO DEW SENSOR

4-6 4-6

SC92711-2

MAIN BOARD SCHEMATIC DIAGRAM 3/11 (DV MAIN

)

Pg 4, 6, 8, 10, 11

SC92711-3

4-7 4-7

MAIN BOARD SCHEMATIC DIAGRAM 4/11 (CAM CPU

NETWORK

PACK

)

IC402

PLSC1402

4-8 4-8

SC92711-4

MAIN BOARD SCHEMATIC DIAGRAM 5/11 (AFE

SUB2

To IS CN1 Page 4-24

)

SUB3

SC92711-5

4-9 4-9

MAIN BOARD SCHEMATIC DIAGRAM 6/11 (PLD

IC562

)

Factory Use Only

RA563 NRZ0015-331

RA562 NRZ0015-331

RA561 NRZ0015-331

4-10 4-10

C592

0.1

R758

OPEN

R765

33

SC92711-6

MAIN BOARD SCHEMATIC DIAGRAM 7/11 (DBE

)

C669

C670

12p

4-11 4-11

SC92711-7

MAIN BOARD SCHEMATIC DIAGRAM 8/11 (AF/LENS

)

IC905

4-12 4-12

SC92711-8