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h. Removal of the Main Board Assembly
The main board disassembly procedure refers to the view of figure 8-5 & 8-10.
•
Remove the front bezel (6.2.1.a)
•
Remove the upper cover assembly (6.2.1.b)
•
Remove the front frame assembly (6.2.1.c)
•
Remove the processor board (6.2.1.d)
•
Remove the power supply (6.2.1.e)
•
Remove the upper shield (6.2.1.f)
•
Remove three M3x6 screws that secure the main board to the lower cover.
•
Remove twelve M3X6 screws that secure the main board to the lower cover
The main board can now be removed from the oscilloscope.
6.2.2 Assembly Procedure
Reassemble the unit in the reverse order, check that all screws shown on the
drawings in section 8 are used and properly torqued.
Verify that all cables are correctly connected.
Assembly Note :
•
Bezel :
The plastic bezel should be in contact with the CRT all around the screen
area. The bezel should not be deformed. When reassembling unit, if glass on
inside of bezel must be cleaned use lint free wipes and while again wearing a lab
coat and gloves try to polish off any marks, as a last resort use glass cleaner. If
any fingerprints are present on LCD display, it may be possible to clean with
alcohol and a lint free wipe, however sometimes it is impossible to clean it
completely. If dust is present it may be possible to blow it off using particle free
compressed air however this may cause more dust to be drawn to the LCD face.
•
LCD Display
: Being careful not to damage the LCD face. Fingerprints may be
impossible to clean off.
•
Fan
: Check the fan cable direction. Note the air flow, the fan extracts air from the
unit and expels it.
•
Feet
: Check that the lower feet and rear feet are aligned and properly tightened
before re-assembly.
•
Filter
: Check that the earth wire is correctly installed and tightened.
•
Floppy
: Adjust the floppy position to obtain the front face tangential to face of the
front panel. Check that the door is moving freely and shuts correctly.
Insert a floppy and eject it to check the mechanism.
Maintenance
6-5
Содержание LC564DL
Страница 12: ...x Table of Contents ...
Страница 18: ...2 4 General Information ...
Страница 46: ...4 22 Theory of Operation 4 6 2 Power Supply Block Diagram ...
Страница 59: ...Performance Verification 5 13 ...
Страница 70: ...5 24 Performance Verification ...
Страница 95: ...Performance Verification 5 49 ...
Страница 115: ...Performance Verification 5 69 ...
Страница 122: ...5 76 Performance Verification Figure 5 14 1MΩ Ω Ω Ω Rise time Equipment Setup ...
Страница 148: ...6 14 Maintenance 6 6 4 Fan Problem ...
Страница 149: ...6 6 5 Power Supply Voltages Problem Maintenance 6 15 ...
Страница 150: ...6 16 Maintenance 6 6 6 Display Problem ...
Страница 151: ...6 6 7 Front Panel Controls Do not Operate Maintenance 6 17 ...
Страница 152: ...6 18 Maintenance 6 6 8 Remote Control GPIB or RS232 Problem ...
Страница 153: ...6 6 9 Performance Verification Fails Maintenance 6 19 ...
Страница 154: ...6 20 Maintenance 6 6 10 Floppy Disk Drive Problem ...
Страница 155: ...6 6 11 Graphic Printer Problem Maintenance 6 21 ...
Страница 156: ...6 22 Maintenance 6 6 12 Centronics Problem ...
Страница 157: ...6 6 13 Hard Disk Drive Problem Maintenance 6 23 ...
Страница 158: ...6 24 Maintenance ...
Страница 181: ...Mechanical Parts 8 1 8 Mechanical Parts Figure 8 1 LC564DL Cabinet ...
Страница 182: ...8 2 Mechanical Parts Figure 8 2 LC564DL Chassis Assembly ...
Страница 184: ...8 4 Mechanical Parts Figure 8 3 Power Supply Installation ...
Страница 185: ...Mechanical Parts 8 5 Figure 8 4 Lower Cover Assembly ...
Страница 187: ...Mechanical Parts 8 7 Figure 8 5 Lower Cover Assembly with CKTRIG Option ...
Страница 188: ...8 8 Mechanical Parts Figure 8 6 Lower Cover ...
Страница 190: ...8 10 Mechanical Parts Figure 8 7 CKTRIG Option ...
Страница 191: ...Mechanical Parts 8 11 Figure 8 8 Rear Panel Assembly ...
Страница 193: ...Mechanical Parts 8 13 Figure 8 9 900079 Main Board Assembly ...
Страница 194: ...8 14 Mechanical Parts Figure 8 10 900079 Main Board Assembly ...
Страница 196: ...8 16 Mechanical Parts Figure 8 11 Upper Shield Assembly ...
Страница 197: ...Mechanical Parts 8 17 Figure 8 12 Front Frame Assembly ...
Страница 199: ...Mechanical Parts 8 19 Figure 8 13 Keypad Assembly ...
Страница 200: ...8 20 Mechanical Parts Figure 8 14 Fan Assembly ...
Страница 202: ...8 22 Mechanical Parts Figure 8 15 Graphic Printer Assembly ...
Страница 203: ...Mechanical Parts 8 23 Figure 8 16 Upper Cover Assembly ...
Страница 205: ...Mechanical Parts 8 25 Figure 8 17 Hard Disk Assembly ...
Страница 206: ...8 26 Mechanical Parts Figure 8 18 Centronics VGA Interface Assembly ...
Страница 207: ...Mechanical Parts 8 27 Figure 8 19 Floppy Disk Assembly ...
Страница 209: ...Mechanical Parts 8 29 Figure 8 20 LC564DL Dimensions ...
Страница 210: ...8 30 Mechanical Parts Figure 8 21 LC564DL Packaging ...