SON CCU-TX7P Manual de usuario

CCU-TX7

CAMERA CONTROL UNIT

SERVICE MANUAL

Vol. 1 (1st Edition)

CCU-TX7P

CAMERA CONTROL UNIT

COU-TX7

CAMERA OPERATION UNIT

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

informations 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

quelque 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

Vervielfältigung 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

schriftliche Erlaubnis der Sony Corporation.

SAFETY CHECK-OUT

After correcting the original service problem,

perform the following safety checks before

releasing the set to the customer :

Check the metal trim, “metallized” knobs,

screws, and all other exposed metal parts for AC

leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to

earth ground and from all exposed metal parts to

any exposed metal part having a return to

chassis, must not exceed 0.5 mA. Leakage

current can be measured by any one of three

methods.

1. A commercial leakage tester, such as the

Simpson 229 or RCA WT-540A. Follow the

manufacturers’ instructions to use these

instruments.

2. A battery-operated AC milliammeter. The

Data Precision 245 digital multimeter is

suitable for this job.

3. Measuring the voltage drop across a resistor

by means of a VOM or battery-operated AC

voltmeter. The “limit” indication is 0.75 V, so

analog meters must have an accurate low-

voltage scale. The Simpson 250 and Sanwa

SH-63Trd are examples of a passive VOM

that is suitable. Nearly all battery operated

digital multimeters that have a 2 V AC range

are suitable. (See Fig. A)

Fig A. Using anAC voltmeter to check AC leakage.

To Exposed Metal

Parts on Set

1.5 k

Ω

0.15

FAC

voltmeter

(0.75V)

Earth Ground

CCU-TX7 (E)/V1

MANUAL STRUCTURE

Purpose of this manual

Related manuals

This manual is the Service Manual Vol. 1 of the CAMERA CONTROL UNIT CCU-TX7

(for NTSC) and CCU-TX7P (for PAL), and also CAMERA OPERATION UNIT COU-

TX7.

This manual contains the operation manual related to the operations of this equipment,

the replacement of the parts and adjustments.

In addition to this Service Manual Vol. 1, the following manual is provided.

• Service Manual Vol. 2

Part No. 9-977-286-21

Containssemiconductor pin assignments, parts lists, block diagrams, board illustrations

and schematic diagrams.

2CCU-TX7 (E)/V1

TABLE OF CONTENTS

1. OPERATING INSTRUCTIONS

2. INSTALLATION

2-1. CONNECTORS AND CABLES .......................... 2-1

2-1-1. Connector Input/Output Signals .................... 2-1

2-1-2. Connection Connector ................................... 2-4

2-1-3. Wiring Diagram for Cable............................. 2-4

2-2. MAKING OF WF MODE CONNECTOR ........... 2-4

2-3. COAX CONNECTOR .......................................... 2-5

2-4. OPERATING ENVIRONMENT .......................... 2-5

2-5. MOUNTING ON 19-INCH RACK ...................... 2-6

2-6. SWITCH FUNCTIONS ON BOARD .................. 2-7

3. SERVICE INFORMATION

3-1. BOARD LAYOUT................................................ 3-1

3-2. DISASSEMBLY/INSTALLATION OF MAIN

PART ..................................................................... 3-1

3-2-1. Removal of Cabinet ....................................... 3-1

3-2-2. Replacement of Switching Regulator ............ 3-2

3-2-3. Installation of COU-TX7............................... 3-2

3-3. CIRCUIT DESCRIPTION .................................... 3-3

CT-181 board .............................................................. 3-3

AA-90 board ............................................................... 3-3

YD-26 board ............................................................... 3-3

ES-20 board................................................................. 3-3

AU-234 board ............................................................. 3-3

IO-140 board ............................................................... 3-3

4. ADJUSTMENT

4-1. Preparation............................................................. 4-1

4-1-1. Equipment Required ...................................... 4-1

4-1-2. Fixture............................................................ 4-1

4-1-3. Notes on Adjustment ..................................... 4-1

4-1-4. Switch settings............................................... 4-1

4-1-5. Connections ................................................... 4-2

4-2. Video Signal System Adjustment.......................... 4-3

4-2-1. Sub-carrier Frequency Check ........................4-3

4-2-2. CAM H Phase Adjustment ............................ 4-3

4-2-3. H Phase Adjustment ...................................... 4-4

4-2-4. SYNC Phase Adjustment .............................. 4-4

4-2-5. INT SC Phase Adjustment............................. 4-5

4-2-6. Y CLAMP Adjustment.................................. 4-5

4-2-7. Y OUT (COMP) Level Adjustment .............. 4-6

4-2-8. Y OUT (VBS) Level Adjustment.................. 4-6

4-2-9. R-Y/B-Y White Black Balance

Adjustment .................................................... 4-7

4-2-10. G Level Adjustment ...................................... 4-7

4-2-11. R Level Adjustment....................................... 4-8

4-2-12. B Level Adjustment....................................... 4-8

4-2-13. WF OUT R/B DC OFFSET Adjustment ....... 4-9

4-2-14. Carrier Balance Adjustment .......................... 4-9

4-2-15. Color Vector Adjustment ............................ 4-10

4-2-16. R-Y/B-Y OUT Level Adjustment ............... 4-10

4-2-17. VBS OUT Level Adjustment ...................... 4-11

4-2-18. STAIR CASE Adjustment........................... 4-11

4-3. Y Cable Compensation System Adjustment ....... 4-12

4-3-1. SYNC SEP Adjustment ............................... 4-12

4-3-2. BLACK Pulse Width Adjustment ............... 4-12

4-3-3. SYNC Sample Hold Pulse Width

Adjustment .................................................. 4-13

4-3-4. 22.5 MHz VCO DC Set Adjustment ........... 4-13

4-3-5. Sample Pulse Width Adjustment................. 4-14

4-3-6. Sample Pulse V Gate Width Adjustment ....4-14

4-3-7. 22.5 MHz Carrier Level Adjustment........... 4-15

4-3-8. Y DEMOD Carrier Balance Adjustment..... 4-15

4-3-9. Y OFFSET Adjustment ............................... 4-16

4-3-10. Y 90dAdjustment ........................................ 4-16

4-3-11. Y 1st AGC Adjustment ............................... 4-16

4-3-12. Y Output Level Adjustment ........................ 4-17

4-4. CHROMA Cable Compensation System

Adjustment .......................................................... 4-17

4-4-1. 45 MHz Carrier Level Adjustment.............. 4-17

4-4-2. C PLL Set Adjustment................................. 4-18

4-4-3. B-Y DEMOD Carrier Balance

Adjustment .................................................. 4-18

4-4-4. B-Y Crosstalk Adjustment .......................... 4-19

4-4-5. C 1st AGC Adjustment................................ 4-19

4-4-6. B-Y OUT Level Adjustment ....................... 4-20

4-4-7. R-Y DEMOD Carrier Balance

Adjustment .................................................. 4-20

4-4-8. R-Y Crosstalk Adjustment .......................... 4-21

4-4-9. R-Y OUT Level Adjustment ....................... 4-21

4-5. RETURN VIDEO Cable Compensation

System Adjustment.............................................. 4-22

4-5-1. Return Video Carrier Frequency

Adjustment .................................................. 4-22

4-5-2. Return Video Deviation Adjustment ........... 4-22

4-6. PROMPT VIDEO Cable Compensation

System Adjustment.............................................. 4-23

4-6-1. TX PROMPT VIDEO Demodulation

Adjustment .................................................. 4-23

4-6-2. RX PROMPT VIDEO Demod.

Adjustment .................................................. 4-24

4-6-3. RX PROMPT VIDEO RF AGC

Adjustment .................................................. 4-25

4-6-4. RX PROMPT VIDEO Level Adjustment ...4-26

CCU-TX7 (E)/V1

4-7. TRIAX Interface System Adjustment ................. 4-26

4-7-1. Frequency Set Adjustment .......................... 4-26

4-7-2. INCOM Deviation Adjustment ................... 4-27

4-7-3. PGM Deviation Adjustment ........................ 4-27

4-7-4. INCOM Demodulation Adjustment ............ 4-28

4-7-5. INCOM Level Adjustment .......................... 4-28

4-7-6. MIC 1 Demodulation Adjustment ............... 4-29

4-7-7. MIC 1 Level Adjustment............................. 4-29

4-7-8. MIC 2 Demodulation Adjustment ............... 4-30

4-7-9. MIC 2 Level Adjustment............................. 4-30

4-7-10. CAM DATA Demodulation Adjustment .... 4-31

4-7-11. CAM TONE Adjustment............................. 4-31

http://getMANUAL.com

1-1

CCU-TX7 (E)/V1

SECTION 1

OPERATING INSTRUCTIONS

Operating Instructions

Before operating the unit, please read this manual

thoroughly and retain it for future reference.

Camera Control

Unit

3-859-845-11(1)

CCU-TX7/TX7P

1997 by Sony Corporation

1-2 CCU-TX7 (E)/V1

WARNING

To prevent fire or shock hazard, do not

expose the unit to rain or moisture.

This symbol 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.

This symbol is intended to alert the user to the

presence of important operating and

maintenance (servicing) instructions in the

literature accompanying the appliance.

Owner’s Record

The model and serial numbers are located at the rear.

Record the serial number in the space provided below.

Refer to these numbers whenever you call upon your Sony

dealer regarding this product.

Model No. Serial No.

For the customers in the USA

This equipment has been tested and found to comply with

the limits for a Class A digital device, pursuant to Part 15 of

the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference when the

equipment is operated in a commercial environment. This

equipment generates, uses, and can radiate radio frequency

energy and, if not installed and used in accordance with the

instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential

area is likely to cause harmful interference in which case the

user will be required to correct the interference at his own

expense.

You are cautioned that any changes or modifications not

expressly approved in this manual could void your authority

to operate this equipment.

This device requires shielded interface cables to comply with

FCC emission limits.

Table of Contents

Overview ............................................................................4

Product Features.................................................................. 4

Connections......................................................................... 5

Installing the Camera Operation Unit ................................. 7

Location and Function of Parts .......................................8

Front Panel .......................................................................... 8

Rear Panel ......................................................................... 14

Internal Board Switches and Knobs .................................. 17

Notes on Use ...................................................................20

Specifications..................................................................21

1-3

CCU-TX7 (E)/V1

Overview

Product Features

The CCU-TX7/TX7P is a camera control unit that

connects to DXC-637 Series and DXC-D30 Series

Color Video Cameras via the CA-TX7/TX7P Camera

Adaptor.

This product’s features are described below.

Full-featured signal transfer functions

•The CCU-TX7/TX7P is able to transfer wideband

component video signals. (Y signals at 9 MHz or

above, and R–Y and B–Y signals at 4.5 MHz or

above)

•When using a triaxial cable, audio signals can be

transferred up to 750 meters (2460 feet) (when cable

diameter is 8.5 mm (

inch)) or 1,500 meters (4920

feet) (when cable diameter is 14.5 mm (

inch).

•Transfer functions are provided for the following

signals.

Return video, teleprompter signal, microphone audio,

program audio, red tally and green tally signals

•An intercom switch is also provided.

Flexibly adaptable camera control functions

•The optional COU-TX7 Camera Operation Unit,

which can be installed on the CCU-TX7/TX7P’s

front panel, enables video camera operations to be

controlled from the CCU-TX7/TX7P.

•When several CCU-TX7/TX7P units are connected in

parallel, the optional RCP-TX7 Remote Control

Panel can be used to control video camera operations

as well as the color balance between cameras.

•An RS-232C connector is provided for the CCU-

TX7/TX7P, allowing a personal computer to be

connected for computer-based control of video

camera operations.

Wide array of input/output signals

The input and output connectors provided for the

CCU-TX7/TX7P include those for outputting such

signals as a composite video signal (VBS), component

video signals (switchable to RGB), video signals for

video and waveform monitors, and for inputting a

reference signal for external synchronization.

Rack mountable

Two CCU-TX7/TX7P units can be installed side by

side in the optional RMM-TXC7 Rack Mount Bracket.

When using one CCU-TX7/TX7P unit

Connections

Examples of how to connect other devices to this unit

are shown in the following.

Notes

•Be sure to power the CCU-TX7/TX7P off before

inserting or removing the triaxial cable connector.

•Some of the video camera’s switches and buttons

may not operate while the CCU-TX7/TX7P is

connected to it.

For details, see the operation manual for the video camera

or camera adaptor.

SYNC AC IN

WFPIX

MIC

OUT

RETURN

VIDEO

PROMPT

VIDEO

DC IN

GENLOCK

INTERCOM

CCU/CAMERA

VIDEO

REF



INTERCOM/

TALLY VBS

VIDEO

CAMERA

REMOTE

Y/R–Y/B–Y,

R/G/B,Y/C

Control console

Out

In/Out

Headset

CA-TX7/TX7P

DXC-D30/D30P

Triaxial cable

CCA-7 cable

RCP-TX7

CCU-TX7/TX7P

(front panel)

Reference sync signal

Teleprompter signal

DC power

source

AC power source

AC power cord

(supplied)

Video monitor Waveform monitor

1) Y/R–Y/B–Y, R/G/B, and Y/C outputs are switchable.

2) Use either AC or DC power source.

3) This illustration shows the CCU-TX7.

Headset

1-4 CCU-TX7 (E)/V1

Overview



VBS

REMOTE

CAMERA

GENLOCK

CCU/CAMERA

RS232C

GEN

LOCK

RETURN

VIDEO

RETURN

VIDEO

PROMPT

VIDEO

PROMPT

VIDEO

RETURN

VIDEO

PROMPT

VIDEO

Y/R–Y/B–Y,R/G/B,Y/C

AC IN

DC IN

When using two CCU-TX7/TX7P units

CA-TX7/TX7P

DXC-D30/D30P

Triaxial cable

CCA-7 cable

RCP-TX7

CCU-TX7/TX7P

Switcher, video

monitor, etc.

VTR

Chroma keyer

Reference sync signal

Return video signal

Teleprompter signal

(For power sources,

see the connections

illustrated for the unit

shown below.)

DC power

source

AC power source

AC power cord

(supplied)

Personal computer

(When the RCP-TX7s are

not connected.)

1) Y/R–Y/B–Y, R/G/B, and Y/C outputs are switchable.

2) Use either AC or DC power source.

3) This illustration shows the CCU-TX7.

Switcher, video

monitor, etc.

VTR

Chroma keyer

CCU-TX7/

TX7P

CA-TX7/TX7P

DXC-D30/D30P

CCA-7 cable

Triaxial cable

RCP-TX7

Installing the Camera Operation Unit

The following describes how to fit the optional COU-

TX7 Camera Operation Unit to the CCU-TX7/TX7P’s

front panel.

Open the CCU-TX7/TX7P’s

front panel.

Remove the blank panel and

the connector cap.

Attach the camera operation

unit to the front panel and

connect the flat cable to the

connector.

Close the front panel and

fasten the screws.

Stopper

Connector cap

Blank panel

Flat cable

Camera

operation unit

1-5

CCU-TX7 (E)/V1

Various switches, adjustment knobs, and connectors

are located on the front panel, rear panel, and also on

the edges of internal boards.

Location and Function of Parts

Front Panel

From the front panel, you can operate the CCU-TX7/

TX7P’s switches and knobs as well as the camera

operation unit’s switches and knobs (when the optional

COU-TX7 Camera Operation Unit has been installed).

For description of how to install the camera operation unit,

see “Installing the Camera Operation Unit” (page 7).

TALLY

SHUTTER

KNEE IRIS

WHITE/BLACK BALANCE

OUTPUT

M.GAMMA

GAIN TLCS

DETAIL

OPERATE

POWER

CABLE ALARM

INTERCOMCAMERA

POWER

SKIN

DETAIL

MASTER

BLACK

SHORT

CALL

MIC

OFF

INTERCOM

LINE

CH1

CH2

PGM

PRIV

OFF

OPEN

LOCK

PART

FULL

HIGH

MID

LOW

CAM

BARS

OFF

C.SCAN

AUTO

MANUAL

AUTO

PRESET

WHITE

BLACK

BLACK WHITE

AUTO ATW

MANUAL

AUTO

MANUAL

OFF

PRE

PUSH

CCU-TX7/TX7P switches and knobs

(see page 9) Camera operation unit switches and knobs

(see page 10)

CCU-TX7/TX7P switches and knobs

1TALLY lamp

The lamp lights red when a red tally signal is received

and green when a green tally signal is received.

It also lights red when the CALL button is pressed on

the CA-TX7/TX7P Camera Adaptor or RCP-TX7

Remote Control Panel connected to this unit.

The camera number plate (provided) can be attached to

this lamp.

2CABLE ALARM indicator

SHORT: this indicator lights when an overcurrent

occurs in the triaxial cable connected to the

CAMERA connector on the rear panel.

OPEN: this indicator lights when there is no triaxial

cable connected to the CAMERA connector on

the rear panel or when the current flowing in the

connected triaxial cable is excessively small.

3CALL button

When you press this button, it lights along with the red

TALLY lamps and CALL buttons on the video

camera, camera adaptor, and remote control panel

connected to this unit. This function can be used to call

the video camera or remote control panel operator.

You can then talk with the operator via the intercom.

This button also lights when the CALL button is

pressed on the camera adaptor or remote control panel.

4INTERCOM audio input/output and setting

section

INTERCOM connector (XLR 5-pin): Use this to

connect a headset.

INTERCOM (intercom level) knob: Use this to

adjust the intercom sound volume.

PGM (program audio level) knob: Use this to

adjust the sound volume when monitoring

program audio via a headset.

MIC switch: Use this switch to turn the headset’s

microphone ON or OFF.

LINE switch: Use this switch to select the channel

for intercom signals that are input and output via

the INTERCOM connector.

• CH1: Connects to channel 1

• CH2: Connects to channel 2

• PRIV: Does not connect to channel 1 or

channel 2. Instead, the intercom operates only

between this unit and the connected video

camera.

5CAMERA POWER switch and indicator

When the POWER switch is on, use this switch to

switch the power on and off to the video camera and

camera adaptor connected to this unit. The indicator

lights when this switch is turned on powering the

camera adaptor.

6POWER switch and indicator

This switches the power to this unit on or off. The

indicator lights when the power is on.

TALLY

POWER

CABLE ALARM

INTERCOMCAMERA

POWER

SHORT

CALL

MIC

OFF

INTERCOM

LINE

CH1

CH2

PGM

PRIV

OFF

OPEN

PUSH

1TALLY lamp

2CABLE ALARM indicator

3CALL button

4INTERCOM audio input/

output and setting section

5CAMERA POWER switch

and indicator

6POWER switch and

indicator

INTERCOM

MIC

OFF

INTERCOM

LINE

CH1

CH2

PGM

PRIV

PUSH

MIC switch

LINE switch

PGM knob

INTERCOM knob

INTERCOM connector

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