Front Panel, Key Pad, And Key Flex Circuit Replacement; Tools Required; Removal Procedure; Replacement Procedure - Keysight E4980A Service Manual

Replacement Procedure

Front Panel, Key Pad, and Key Flex Circuit Replacement

Front Panel, Key Pad, and Key Flex Circuit Replacement

Tools Required

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Removal Procedure

Refer to
Step 1. Remove the 3/4 Rack Module Top as described in
Replacement" on page
Step 2. Remove the PCA E4980 USB as described in
on page
Step 3. Remove the A3 Analog Daughter Board as described in
Board Replacement" on page
Step 4. Remove the A2 Analog Board as described in
on page
Step 5. Remove the Front Panel Assembly as described in
Removal" on page
Step 6. Disconnect the Display Cable (item 1) from the Key Flex Circuit.
Step 7. Carefully remove the Display Support with the LCD display (item 2) from the
Front Panel.
When removing the Display Support, release the hook (flat cable side) of
the Display Support first, and then carefully release the other hooks of the
Display Support.
Be careful not to break the hooks.
Step 8. Remove the Front Panel (item 3) from the Key Pad (item 4), the Window EMI
Shield (item 5), the Key Flex Circuit (item 6), and the EMI Shield (item 7).
Replacement Procedure
Step 1. Reverse the order of the removal procedure.
Keysight E4980A/E4980AL Precision LCR Meter
Torque screwdriver, TORX T10
Torque screwdriver, TORX T20
Box torque wrench, 7 mm
Box torque wrench, 5/8 inch
Figure 6-18 for this procedure.
73.
102.
79.
81.
"3/4 Rack Module Top
"PCA E4980 USB Replacement"
77.
"A2 Analog Board Replacement"
"Front Panel Assembly
"A3 Analog Daughter
107