Siemens VideoMed User manual

VIDEOMED SX

Service

Setting Instructions

H1X / HD emulation from firmware VA01F

The reproduction, transmission or use of th is do cu ment or its con ten ts is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model _or_ design,_are_ reserved.

Replaces: RX52-041.032.01.04.02

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VIDEOMED SX Register 4 RX52-041.032.01 TD AX 1 Siemens AG Service Rev. 05 03.96 Medical Engineering

Contents Chapter 0

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1 _______Notes ________________________________________________________1 - 1

Va lidity of the document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

Additionally required documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

Tools and measuring equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

2 _______Settings ______________________________________________________2 - 1

Installation of the service program . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

Start service program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

Selecting the Emulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2

Selecting the Video Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3

Adjustment of the size and position of the imag e . . . . . . . . . . . . . . . . . . . . 2 - 3

Setting the size of the AGC measurement fields . . . . . . . . . . . . . . . . . . . . 2 - 4

Adjusting the fix gain 2 (only with Fluorospot H) . . . . . . . . . . . . . . . . . . . . 2 - 5

Overview of the Configuration as H1X Emulation . . . . . . . . . . . . . . . . . . . . 2 - 8

Overview of the Configuration as HD Emulation . . . . . . . . . . . . . . . . . . . . 2 - 9

Nominal values for the H1X emulation . . . . . . . . . . . . . . . . . . . . . . . . 2 - 10

Pedestal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 10

Manual gain 1/2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 10

AGC function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 10

3 _______Service auxiliaries______________________________________________3 - 1

Generating a Saw-Tooth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

4 _______Changes to previous version_____________________________________4 - 1

Siemens AG TD AX 1 R52-041.03 2.0 1 Register 4 VIDEOMED SX Medical Engineering Rev. 05 03.96 Service

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VIDEOMED SX Register 4 R52-041.032.01 TD AX 1 Siemens AG Service Rev. 05 03.96 Medical Engineering

NOTE

Notes 1

Validity of the document 1

These instructions provide an overview of the set ting val ues of the videomed SX. The values shown in the service masks are presettings and can be changed if , for instance, IQ desired values are not achieved.

The document applies for setting work on system-t ested systems as well as for subsystems.

Chapter 3 (Service auxiliaries) desc ri bes the generation of a sawtooth signal as, for instance, is required for the setti ng of the Video In board (FLUOROSPOT H).

The function of the service masks is described in the service instructions RA52-

041.061.01...

Additionally required documents 1

VIDEOMED S/S-C/SX service instructions RA52-041.061.01... VIDEOMED S/SX circuit diagram G5383

Tools and measuring equipment 1

Service PC as specified in ARTD 3.1.0 Extension cable (interface cable) 99 00 440 RE999 Oscilloscope >50 MHz with delayed time basis, e.g.: Tektronix 2232 97 02 234 Y3155

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General notes 1

Every permanent change of the setting parameters has to be confi rmed wit h "Permanent" so that the VIDEOMED SX accepts the data (Fig. 1).

Fig. 1

Always save the last, current se ttings o n the confi guratio n fl oppy supplied.

Siemens AG TD AX 1 RX52-041.03 2.0 1 Register 4 VIDEOMED SX Medical Engineering Rev. 05 03.96 Service

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VIDEOMED SX Register 4 RX52-041.032.01 TD AX 1 Siemens AG Service Rev. 05 03.96 Medical Engineering

Settings 2

Installation of the service program 2

In some DOS versions there can be problems when reading the configura tion floppy. Therefore the service software should be started from the hard disk of the service PC.

• Call up the "File Manager" in the WINDOWS "Program Manager".

• Create the director y "ssw" under the hard disk drive C. Select <Creat e directory> in

the <File> menu bar.

• In the directory " ssw" create the subdirectory "vid_sx" and under this "va01f".

• Insert the floppy di sk with the firmware + service software VA01F in drive A.

• Call <File> <Copy>

• Enter a:\*.* in t he "From" box and "c:\ssw\v id_sx\vao1f in the "To" box and confirm with

"OK". The floppy ist copied into drive C.

• Remove the floppy and close the " File Manager".

• Click <File> <New> in t he Program Manager.

• Create the "Servic e" program group or, if this window already exi sts, select it in the

Program Manager.

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• Select <File> <New> "Program" and confirm with "OK".

• Click "Search" and select the directory c:\ssw\vid_sx\va01f by do uble clicking.

• Under "File name" select videomed.exe and confir m with "OK".

• Enter VA01F in the "Descript ion" field, select the "Symbol" box, con firm with "OK".

Start service program 2

• Connect the service PC ( Com1) with serial interface cable t o D12.X100.

• Start the service pr ogram by double clicking the icon (Fig. 1).