GE Vivid 7 Service Manual
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GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 4 - Functional Checks 4 - 67 4-3-16 Probe/Connectors Check NOTE: Probes can be connected at any time, whether the unit is ON or OFF CAUTIONTake the following precautions with the probe cables: - Keep away from the wheels - Do not bend - Do not cross cables between probes Table 4-31 Probe and Connectors Checks StepTaskExpected Result(s) 1. Press Probe on the Operator Panel. A list of the connected probes will pop up on the screen. 2. If not already selected. use the trackball to select the desired probe. An application menu for the desired probe is listed on the screen. 3. Trackball to the desired application Press Select to launch the application. To change application without changing the current probe, press Appl. on the Operator Panel. The selected application starts. 4.Verify no missing channelsAll channels is functioning. 5.Verify theres no EMI/RFI or artifacts specific to the probe.No EMI/RFI or artifacts. 6.Test the probe in each active connector slot., see 3-6-5 Probe Connection on page 3-21It will display pictorial data each time 7. Do a leakage test on the probe, see Section 10-7 Electrical Safety Tests on page 10-12 It passes the test. 8. Repeat this procedure for all available probes.
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL 4 - 68 Section 4-3 - Functional Checks 4-3-17 ECG Check 4-3-17-1 Introduction The ECG capability on this unit, is intended as use as a trigger for measurements, but can also be viewed on the screen. 4-3-17-2 Parts needed • ECG Harness, P/N:16L0026 + P/N:16L0028 • ECG Pads, (3 pc) or • ECG simulator 4-3-17-3 Preparations None 4-3-17-4 ECG Check Table 4-32 ECG Check StepTaskExpected Result(s) 1. Connect the ECG harness to the connector on the front of the system The unit displays a straight curve along the bottom edge of the image sector on the screen. 2. Connect the three leads to a ECG simulator, or Fasten the three ECG Pads to your body and connect the three leads to respective ECG Pad - When connecting, the signal on the screen will be noisy - When the connection is completed, a typical clean ECG signal is displayed.
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 4 - Functional Checks 4 - 69 4-3-18 Cineloop Check 4-3-18-1 Introduction A cineloop is a sequence of images recorded over a certain time frame. When using ECG the time frame can be adjusted to cover one or more heart cycles. When frozen the System automatically displays the cineloop boundary markers on either side of the last detected heart cycle (Figure 4-36). 4-3-18-2 Preparation Use a phantom when doing these tests. 1.) Connect one of the probes, to the scanner’s left-most probe connector. -See 3-6-5 Probe Connection on page 3-21 for info about connecting the probes -See Section 9-26 Probes on page 9-80 for available probes 2.) Turn ON the scanner -See 4-2-2 Power ON/ Boot UP on page 4-3 for info about booting the scanner. The 2D Mode window is displayed (default mode). 3.) Press Freeze to freeze the image. 4.) Press the Mode Dependant button Cineloop. Figure 4-36 The Cineloop controls display Left marker Right marker Current frame Cine speed (replay) Loop displayECG
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL 4 - 70 Section 4-3 - Functional Checks 4-3-18-2 Preparation (cont’d) Figure 4-37 Cineloop controls OffOff/OnO n Mode Dependant Keys Left marker Right marker Cycle select Number of cycles First Cycle Last Cycle Sync Cineloop Select all Trackball Scroll (in freeze) Cine speed (in replay) Freeze Image Store Start/stop cineloop
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 4 - Functional Checks 4 - 71 4-3-18-3 Check Left Marker, Right Marker, Cycle Select and Number of Cycles Table 4-33 Cineloop Controls Checks StepTaskExpected Result(s) 1. Adjust LEFT MARKER and RIGHT MARKER Moves the Left and Right Markers to expand or trim the cineloop boundaries. 2. Adjust CYCLE SELECT Moves the cineloop boundaries from heart cycle to heart cycle. 3. Adjust NUMBER OF CYCLE Increase or decrease the number of heart cycles to be included in the cineloop.
GE HEALTHCARE
DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL
4 - 72 Section 4-3 - Functional Checks
4-3-18-4 Check First, Last Cycle, Sync and Select all
4-3-18-5 Adjust Scroll and Cine Speed
Table 4-34 Cineloop Controls Checks
StepTaskExpected Result(s)
1. Press FIRST and LAST CYCLE
Select either the first or the last heart cycle.
2. Press SYNC
Phase synchronize multiple loops.
3. Press SELECT ALL
Moves the cineloop boundaries to include all heart
cycles.
Table 4-35 Cineloop Controls Checks
StepTaskExpected Result(s)
1. Adjust Scroll (in Frozen mode):
Press TRACKBALL
until the Scroll trackball mode
dependant button is selected.
Use the Trackball.
Move the current frame marker and review images.
2. Adjust Cine Speed (in Cine Replay mode): Press FREEZE
to freeze the image.
Press CINELOOP
.
Roll the Trackball to the left.
Roll the Trackball to the right.
Step : the cine speed is decreased.
Step : the cine speed is increased.
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 4 - Functional Checks 4 - 73 4-3-19 Back-End Processor Checks • If all the previous tests have been passed succe ssfully, the Back-End Processor is most likely OK. • If the system seems to be operat ing erratically, please refer to Chapter 7 - Diagnostics/ Troubleshooting . Figure 4-38 The Test pane
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL 4 - 74 Section 4-3 - Functional Checks 4-3-20 Peripheral Checks 4-3-20-1 Video Printers Checks There may be both a black & white video printer and a color video printer on-board the system. The Video Printers are controlled from the PRINT and ALT. keys on the scanner’s Operator Panel. The factory default is PRINT for the B/W Video Printer and ALT. for the Color Video Printer. 4-3-20-2 DVR Checks Please see chapter 5 in the Vivid 7 Peripherals Inst allation Manual, Part Number: FC294048 revision 3 (or newer). Figure 4-39 Freeze, Print 1 and Print 2 keys on the Operator Panel Table 4-36 Video Printer(s) Checks StepTask Expected Result(s) 1. When scanning in 2D Color Mode, Press FREEZE to stop image acquisition. Image scanning stops with the last picture on the screen. 2. Press PRINT on the Operator Panel The image displayed on the screen is printed on B&W or Color printer, depending on the key assignment configuration. 3. Press ALT . on the Operator Panel The image displayed on the screen is printed on Color or B&W printer, depending on the key assignment configuration 4.Check if the print quality on the pictures both from the printers are of expected quality. PRINT key ALT. key FREEZE key
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL Chapter 4 - Functional Checks 4 - 75 4-3-20-3 VCR Checks 4-3-20-4 VCR Counter Check When adding new examinations to a Video cassette, you can set the VCR Counter without rewinding the Video Cassette to the start. The procedure below explains how to check this function. Prerequisite: The VCR Counter number when the Video Cassette was Ejected last time. Figure 4-40 VCR Controls on the Operator Panel Table 4-37 VCR Counter Check StepTask Expected Result(s) 1. Insert the Video cassette in the VCR 2. Press VIDEO on the Operator Panel. To start the video counter at a different point: 3. Press UPDATE MENU in the Trackball area. The Video Set Counter / Search Dialog window is displayed 4.Use the alphanumeric keyboard to enter the counter number (from last time) in the counter field.Number appears on the screen 5.Press Set Counter to save the change.Number is saved 6.Press VIDEO on the Operator Panel, to return to scanning mode.The system returns to the scanning mode Mode Dependant Keys Stop, Pause, Rewind Fast Forward Record/Pause
GE HEALTHCARE DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL 4 - 76 Section 4-3 - Functional Checks 4-3-20-5 VCR Record Check 4-3-20-6 Check Rewind, Fast Forward and Replay Video Prerequisite: A Video Tape in the VCR with at least one recorded examination. Table 4-38 VCR Checks StepTask Expected Result(s) 1.When scanning, press REC/PAUSE on the Operator Panel. The VCR starts recording. A red dot is displayed in the screen’s VCR status area on the Title bar. It indicates that recording has begun 2. Press REC/PAUSE on the Operator Panel to stop recording. The Recording stops. The video status icon on the screen is changed to (Pause) 3. Note the counter meter setting on the VCR . Table 4-39 VCR Checks StepTask Expected Result(s) 1. Press VIDEO on the Operator Panel. The Mode Dependant Keys changes to VCR controls 2. Press REWIND (Mode Dependant button) The VCR starts to rewind the video tape.(observe the counter) 3. Press STOP (Mode Dependant button) The VCR Stops 4.Press FAST FORWARD (Mode Dependant button)The VCR starts the Fast Forward (observe the counter) 5.Use the controls above to navigate to the start of the recorded examination. Then press PLAY (Mode Dependant button) to replay the recordingThe replay of the examination starts. 6.While in playback mode, use the Trackball to adjust the video playback speed and scroll through the record.The replay of the examination responds according to your commands 7. Press PAUSE to stop the tape at the desired frame. The tape stops at the desired video frame. 8. When playing back an examination part of it can be stored on the computer’s memory as a cineloop.The cine loop enables the user to perform further operations on the stored section (see for further information on cine loop operation). 9. Press FREEZE while playing back a recorded session. To store a recorded sequence as a cine loop The last few seconds are stored as a cine loop.