TM 11-6625-3081-23
7-31. VIDEO SIGNAL GENERATOR (VSG) CASE ASSEMBLY 2A2A7A1
7-31
INPUT CODE:
VSGST (cont)
a. DESCRIPTION (cont)
To check the camera video signal, the camera video output is programmed for
windows of +2.00 vdc with a duration of 15 microseconds occurring on lines 100 and
101 at 15 microseconds after the start of the horizontal sync. The programmable
digitizer assembly is triggered 10 microseconds into line 99, and the following
checks are made:
The width of the first window for 14.8 to 15.2 microseconds.
The width of the second window for 14.8 to 15.2 microseconds.
The first window to occur 42.4 to 43.5 microseconds after the programmable
digitizer trigger.
The second window to occur 80.5 to 81.6 microseconds after the programmable
digitizer trigger.
Line 102 for no camera window.
The camera video amplitude for +1.4 to +1.9 vdc.
b. REPLACEMENT PROCEDURE REFERENCE
The following list provides a cross reference of replacement items to
replacement procedures. The item column identifies the item to be replaced by
reference designation and part number.
The reference column identifies the
procedural paragraph used to perform the replacement action. The VDT screen will
display the proper sequence of repair/replace actions.
Item
Reference
(Ref Des/Part No.)
(Para No.)
2A2A1A1/13083325
2A2A6/13081880
2A2A6XX (SLOT 406)/HP69331B
2A2A7A1/13082244
2A2A7A6A7/13082714
2A2A7A6A8/13083050-19
2A2A7A6A9/13081467-19
2A2A7A6A10/13081471-19
2A2A11/13081879
2A2A11XX (SLOT 100)/06941-60026
2A2A11XX (SLOT 200)/06941-60025
2A2A11XX (SLOT 300)/5060-2689
2A2A11XX (SLOT 401)/69433A
2-45
2-48
2-49
5-34
2-51
2-51
2-51
2-51
2-56
2-57
2-57
2-57
2-57
7-162
