Sony DXF-701 User manual

DXF-701

DXF-701CE

DXF-701WS

DXF-701WSCE

ELECTRONIC VIEWFINDER

SERVICE MANUAL

1st Edition (Revised 1)

X-RAY RADIATION WARNING

Be sure that parts replacement in the high voltage block

and adjustments made to the high voltage circuits are

carried out precisely in accordance with the procedures

given in this manual.

The material contained in this manual consists of

information that is the property of Sony Corporation and is

intended solely for use by the purchasers of the equipment

described in this manual.

Sony Corporation expressly prohibits the duplication of any

portion of this manual or the use thereof for any purpose

other than the operation or maintenance of the equipment

described in this manual without the express written

permission of Sony Corporation.

Le matériel contenu dans ce manuel consiste en infor-

mations qui sont la propriété de Sony Corporation et sont

destinées exclusivement à l’usage des acquéreurs de

l’équipement décrit dans ce manuel.

Sony Corporation interdit formellement la copie de quel-que

partie que ce soit de ce manuel ou son emploi pour tout

autre but que des opérations ou entretiens de l’équipement

à moins d’une permission écrite de Sony Corporation.

Das in dieser Anleitung enthaltene Material besteht aus

informationen, die Eigentum der Sony Corporation sind,

und ausschließlich zum Gebrauch durch den Käufer der in

dieser Anleitung beschriebenen Ausrüstung bestimmt sind.

Die Sony Corporation untersagt ausdrücklich die Ver-

vielfältigung jeglicher Teile dieser Anleitung oder den

Gebrauch derselben für irgendeinen anderen Zweck als die

Bedienung oder Wartung der in dieser Anleitung

beschriebenen Ausrüstung ohne ausdrückliche schrift-liche

Erlaubnis der Sony Corporation.

DXF-701 (J, UC)

DXF-701CE (CE)

TABLE OF CONTENTS

1. OPERATING INSTRUCTION

2. SERVICE INFORMATION

2-1. BOARD LAYOUT.......................................... 2-1 (E)

2-2. REPLACEMENT OF MAIN PARTS............. 2-1 (E)

2-2-1. Notes on Replacement of MAIN Board ... 2-1 (E)

2-2-2. Replacement of CRT/DY Ass’y .............. 2-1 (E)

2-3. REPLACEMENT OF VF LOUPE.................. 2-2 (E)

2-4. REPLACEMENT OF OUTSIDE HOLDER T AND

EYEPIECE OUTER RING ............................. 2-3 (E)

3. ALIGNMENT

3-1. PREPARATION ............................................. 3-1 (E)

3-1-1. Equipment Required ................................ 3-1 (E)

3-1-2. Connection and lnitial Setting ................. 3-1 (E)

3-1-3. Notes on Adjustment ............................... 3-1 (E)

3-2. VIEWFINDER SYSTEM ADJUSTMENT .... 3-2 (E)

3-2-1. +9.5V Adjustment ................................... 3-2 (E)

3-2-2. Heater Voltage Pre-Adjustment .............. 3-2 (E)

3-2-3. Vertical Hold Adjustment........................ 3-2 (E)

3-2-4. Horizontal Hold Adjustment ................... 3-3 (E)

3-2-5. Focus Adjustment .................................... 3-3 (E)

3-2-6. Picture Frame Adjustment ....................... 3-4 (E)

3-2-7. Operational Amplifier Output

Adjustment .............................................. 3-5 (E)

3-2-8. Bright Calibration Adjustment ................ 3-5 (E)

3-2-9. Peaking Offset Adjustment...................... 3-6 (E)

3-2-10. Heater Voltage Adjustment ..................... 3-6 (E)

4. BLOCK DIAGRAM

5. SCHEMATIC DIAGRAM AND BOARD

LAYOUTS

MAIN BOARD ..................................................... 5-1

SUB BOARD ........................................................ 5-3

FRAME ................................................................. 5-5

6. SEMICONDUCTOR PIN ASSIGNMENTS

7. SPARE PARTS

7-1. NOTES ON REPAIR PARTS............................... 7-1

7-2. EXPLODED VIEWS ............................................ 7-2

7-3. ELECTRICAL PARTS LIST................................ 7-4

1 (E)

1-1 (E)

DXF-701 (UC)

DXF-701CE (CE)

SECTION 1

OPERATING INSTRUCTIONS This section is extracted

from operation manual.

•DXF-701/701CE

The DXF-701/701CE is an electronic (monochrome)

viewfinder which can be attached to a Sony CCD Color

Video Camera DXC-D30/D30P. For details of operation,

refer to the Operating Instructions for the camera.

Principal Specifications

Picture tube 1.5-inch monochrome

Indicators REC/TALLY, TAKE, BATT,

SHUTTER, GAIN UP

Resolution 600 TV lines

Signal system DXF-701: EIA standards

DXF-701CE: CCIR standards

Power supply 12 V DC

Power consumption 2.1 W

Mass 660 g approx. (1 lb 7 oz)

Maximum external dimensions

236 (W) ×85 (H) ×219 (D) mm

(9 3/8×3 3/8×8 5/8inches)

Accessories Operation Guide

Design and specifications are subject to change without

notice.

•DXF-701WS/701WSCE

The DXF-701WS/701WSCE is an electronic

(monochrome) viewfinder which can be attached to a Sony

CCD Color Video Camera DXC-D30/D30P/D30WS/

D30WSP. For details of operation, refer to the Operating

Instructions for the camera.

Principal Specifications

Picture tube 1.5-inch monochrome

Indicators REC/TALLY, TAKE, BATT,

SHUTTER, GAIN UP

Resolution 600 TV lines

Signal system DXF-701WS: EIA standards

DXF-701WSCE: CCIR standards

Power supply 12 V DC

Power consumption 2.1 W

Mass 660 g approx. (1 lb 7 oz)

Maximum external dimensions

236 (W) ×85 (H) ×219 (D) mm

(9 3/8×3 3/8×8 5/8inches)

Scan size 16:9/4:3

Accessories Operating Instructions

Design and specifications are subject to change without

notice.

http://getMANUAL.com

2-2 DXF-701 (UC)

DXF-701CE (CE)

SECTION 2

SERVICE INFORMATION

2-1. BOARD LAYOUT 2. Remove the slide ring as shown in Figure.

Remove two screws and remove the CRT/DY ASS’Y

from outside holders B and T.

MAIN board

SUB board LED(B) board

LED(A) board

2-2. REPLACEMENT OF MAIN PARTS

2-2-1. Notes on Replacement of MAIN Board

To replace the MAIN board, perform adjustment referring

to Section 3.“ALIGNMENT”.

2-2-2. Replacement of CRT/DY Ass'y

Note: If a deflection yoke is replaced, you should

replace assembly of CRT and deflection yoke

(CRT/DY ASS’Y).

1. Remove four screws as shown in Figure and remove

the bottom case.

Outside holder T

Outside holder B

CRT/DY Ass'y

Slide ring

Screws(BTP3 X12)

3. Untie two strings and remove an adhesive tape and

Cable Holder.

String

Cable holder

Adhesive tape

2-1 (E)

Screws(B3 X8) Screws(B3 X8)

Bottom case

2-3

DXF-701 (UC)

DXF-701CE (CE)

4. Disconnect four connectors CN2, 3, 4, 5 and 7 on the

MAIN board and high-tension cable. Disconnect the

CRT socket from the CRT/DY ASS’Y.

Note: In disconnecting, carefully pull the CRT socket

backward, as the pins of CRT/DY ASS’Y is

liable to bend.

5. When installing a new CRT/DY ASS’Y, reverse the

above procedures.

Note: In reconnecting the CRT socket, be sure to

match a projection of the CRT socket with a

mark of the CRT/DY ASS’Y.

CN2

CN3

MAIN board

CN5

CN4

High tension cable

CRT socket

CRT/DY Ass'y

CRT socket CRT/DY Ass'y

Projection Mark

2-3. REPLACEMENT OF VF LOUPE

1. Insert a minus screw driver to the clearance between

portion A and eyepiece outer ring as shown in Figure.

Remove eye cup by lifting its portion A and remove

eyepiece inner ring.

Note: When removing eyepiece inner ring, the

friction spring is liable to remove.

3. Remove one side of cutout portion as shown in Figure.

Pull out the lens holder (2) and remove the VF loupe.

Lens holder(2)

VF loupe

Convexity

Cutout

Eyecup

Friction spring

Eyepiece inner ring

Eyepiece outer ring

2. Hold the portion B as shown in Figure. Remove the

lens holder along the groove C.

Lens holder

2-2 (E)

2-4 DXF-701 (UC)

DXF-701CE (CE)

4. When installing the VF loupe, reverse the above

procedures.

Note: 11

1When installing the VF loupe, ensure the

direction of VF loupe. (Refer to Item 2-3-3.)

2When installing eyepiece inner ring, ensure

the inserting position of friction spring and

hold it by finger. Match boss of portion D

and insert the inner ring to the outer ring.

3. Remove a screw, washer and two hinge springs. Then,

remove the outside holder T and eypiece outer ring as

shown in Figure arrow.

•Optional VF loupe

There are two kind of VF loupes as optional accesory.

Use a VF loupe to match your visibility range.

VF loupe for aged eyes;

–2D to +1D (Sony part No. 3-725-276-01)

–0.5D to +3D (Sony part No. 3-176-501-01)

(For reference) Standard ; –3D to 0D

2-4. REPLACEMENT OF OUTSIDE

HOLDER T AND EYEPIECE OUTER

RING

1. Remove the Outside holder T referring to Section 2-2-

2. “Replacement of CRT/DY Ass’y”.

2. Push two pins to portion A by minus screw driver as

shown in Figure.

Outside holder T

Eyepiece outer ring

Hinge springs

4. Pull out two pins.

5. Replace outside holder T or eyepiece outer ring to new

one. Insert two pins to portion B by minus screw driver

as shown in Figure.

PinPin

Friction spring

Eyepiece inner ring

Friction spring

Eyepiece

inner ring

Minus screw driver

APin

Outside holder T

2-3 (E)

3-1 (E)

DXF-701 (UC)

DXF-701CE (CE)

SECTION 3

ALIGNMENT

3-1. PREPARATION

3-1-1. Equipment Required

1. Pattern box PTB-500

Sony part number J-6029-140-B

2. Resolution chart

Sony part number J-6026-100-A

3. White Window chart

4. Video camera DXC-D30/D30P (for DXF-701/701CE)

DXC-D30WS/D30WSP (for DXF-

701WS/701WSCE)

5. Camera Adaptor CA-537/537P, etc.

6. AC Adaptor CMA-8/8CE/8A/8ACE

7. Camera Cable CCQ-2BRS

8. B/W monitor PVM-91/91CE or equivalent

9. Oscilloscope

10.Waveform monitor

11.Digital voltmeter

12. Frequency counter

3-1-2. Connection and Initial setting

•Initial setting

1. Setting of Switches and Controls

Video Camera

OUTPUT switch/camera side →CAM/DCC OFF

GAIN switch/camera side →0 dB

Viewfinder DXF-701/701CE/701WS/701WSCE

CONTRAST control →Fully clockwise

BRIGHT control →Mechanical center

Lens

IRIS AUTO/MANU →AUTO

2. Preparation for picture

(1) Adjust the lens zoom so that the Resolution chart

frame coincides the underscanned picture frame on

the monitor.

(2) Adjust the iris control for the best resolution of the

monitor.

DXF-701/701CE

DXF-701WS/701WSCE

VTR/CCU/CMA

DXC-D30/D30P

DXC-D30WS/D30WSP

CA-537/537P, etc

2 3 meters

CCQ Camera cable

To an AC outlet

Black and White monitor

CAMERA/CCU

B.B cable

To VIDEO IN terminal

VIDEO OUT

CMA-8/8ACE

camera adapter

PTB-500

3-1-3. Notes on Adjustment

1. This “ALIGNMENT” is used for the adjustment of

DXF-701/701CE and DXF-701WS/701WSCE.

Therefore, when adjusting DXF-701/701CE, use the

video camera DXC-D30/D30P.

Also, in case of DXF-701WS/701WSCE, use the video

camera DXC-D30WS/D30WSP.

2. When adjusting DXF-701WS/701WSCE, set the DXC-

D30WS/D30WSP to “4:3” position. But, when

performing procedure 7 of “3-2-6. Picture Frame

Adjustment”, set the DXC-D30WS/D30WSP to “16:9”

position.

Therefore, regarding the setting manner of “16:9” or

“4:3”, refer to item of “Menu screen” of “2-7.

SERVICE MODE OPERATION” in the service

manual DXC-D30WS/D30WSP Vol.1, select the

ADVANCE menu “PAGE 9”, and set “16:9” or “4:3”.

3-2 (E) DXF-701 (UC)

DXF-701CE (CE)

3-2. VIEWFINDER SYSTEM

ADJUSTMENT

3-2-1. +9.5 V Adjustment

Note: Perform the adjustment only when measured

voltage is more than ±1 % with respect to the

specified voltage.

When this adjustment is carried out, all of

following adjustments must be confirmed.

Equipment: Digital voltmeter

Test point: TP1/MAIN board

Adjusting point: 1RV1 (VO-ADJ)/MAIN board

Specification: +9.5 ±0.05 Vdc

3-2-2. Heater Voltage Pre-Adjustment

Equipment: Digital voltmeter (AC mode)

Test point: TP5 ⇔TP6/MAIN board

Specification: 0.65 ±0.03 Vrms

Adjustment Procedure

If not met the specification, adjust 1RV4(VH-ADJ)/

MAIN board.

TP1 TP3

TP4

TP5

TP6

TP7

TP2

TP12

R76

TP11

TP10

TP9TP8

MAIN BOARD -SOLDERING SIDE-

3-2-3. Vertical Hold Adjustment

Note: Perform adjustment with removing R76

resistor on the MAIN board. After adjustment,

re-mount R76 resistor.

Equipment: Frequency counter

Preparation:

1RV7 (V-SIZE)/MAIN board →Mechanical center

(If 1RV7 (V-SIZE)/MAIN board is marked, not turn

1RV7 (V SIZE)/MAIN board.)

Test point: TP 10/MAIN board

Adjusting point: 1RV6 (V-HOLD)/MAIN board

Specification: NTSC : 48 ±0.5 Hz

PAL : 38 ±0.5 Hz

Adjustment Procedure

Adjust 1RV6 (V-HOLD)/MAIN board so that the

specification is met while the viewfinder is free-run state

(Viewfinder is not input any video signal.) by pressing the

RET button of Lens.

RV1

(VO-ADJ)

CN7

CN1

CN8

CN6

CN3

CN5CN4

CN2

RV4

(VH-ADJ)

RV3

(FOCUS)

RV7

(V-SIZE)

RV8

(V-LINE)

RV6

(V-HOLD)

RV5

(H-HOLD)

RV14

(OPAMP-ADJ)

RV15

(V-SIZE : WIDE)

(DXF-701WS/701WSCE only)

MAIN BOARD -COMPOMENT SIDE-

RV2

(H-SIZE)

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