Removal and Replacement Procedures
Table 4-9: Tools required for module removal (cont.)
Item
no. Name Description
General Tool
number
3T-15Torxtip
Used for removing instrument
screws. Torx-driver bit for T-15 size
screw heads
640-247
4
1/8 inch flat-bladed
screwdriver
Screwdriver for unlocking cable
connectors
Standard tool
5
Angle-Tip Tweezers
Used to remove front panel knobs Standard tool
6
3
/
16
inch nut driver
Used to remove jack screws and
front panel standoffs
Standard tool
7
5
/
16
inch nut driver Used to remove nut on AC ground
lug
Standard tool
8
MA-800G Soldering Aid
(spudger)
Used to remove the front panel trim Standard tool
9 Bomar DB36400
Special BNC socket wrench with
Controlled Torque. Used to remove
Audio board BNCs
–––––
10
Soldering iron (15 W) Used for replacing Main board
fuses
Standard tool
11 Long nose pliers Used to compress connector lock
tabs
Standard tool
Module Removal
The removal of most of the modules is a straightforward process, and can be
determined by a quick study of the exploded diagrams in the Replaceable Parts
List in Section 5. The table below shows what to remove to access each module.
(SeeTable4-10onpage4-28.)
Table 4-10: Module removal
To remove
You must first remove Composite Mezzanine
EYE/PHY
or 3G
Audio
assy
Power
supply Main
Front
panel
LCD
assy
Top cover X X X X X X X X
Board supports X X X X X X
Composite
XX
Mezzanine X
EYE/PHY or 3G
X
Analog audio X X
Audio main X X
Main board
4–28 WFM6120, WFM7020, and WFM7120 Waveform Monitors Service Manual
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