GE H41542LA, Базовое руководство по обслуживанию

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GE M
EDICAL
S
YSTEMS
D
IRECTION
2317229, R
EVISION
3 LOGIQ™ 180 B
ASIC
S
ERVICE
M
ANUAL
Chapter 7 Diagnostics 7 - 7
7-2-4 FEB Test for LOGIQ™ 180 (V7.0HC)
When self test for the FEB is selected, the DPRAM on the FEB Board will be written on and read back.
Read data is checked for validity. This will prove the communication between FEB & CPU boards.
7-2-5 Keyboard Tests
When this Option is selected following Menu appears
All Tests
This option is used to run all tests in the menu.
Keyboard Alive Test
In this test, keyboard alive condition is tested by interacting with the keyboard firmware directly.
Keys Test
In this test, all the keys in the keyboard can be tested. The user is prompted to press the keys on the
keyboard and the pressed keys are highlighted on the screen. (This is a toggle operation).
NOTE: During Keys Test Press “Ext. Video” at the last. Pressing “Ext. Video” key interrupts the test and
return to main keyboard Tests Menu.
LEDS Test
During this test FREEZE field and EXTERNAL VIDEO field will be displayed on the monitor. The
FREEZE and EXTERNAL VIDEO LEDs blink for a while sequentially and the corresponding field gets
highlighted.
Trackball Test
A cursor is displayed on the monitor and the user can move the trackball and move the cursor over the
screen.
Gain Knob Test
In this test, the user can check for the operation of the gain knob. The current gain value is displayed
on the screen.
Figure 7-48 Keyboard Tests
KEYBOARD TESTS
1.) ALL TESTS
2.) KEYBOARD ALIVE TEST
3.) KEYS TEST
4.) LEDS TEST
5.) TRACKBALL TEST
6.) GAINKNOB TEST
P.) MAIN MENU
Q.) QUIT
ENTER THE CHOICE:_