Removal and Installation Procedures
6-20
TDS 420A, TDS 430A & TDS 460A Service Manual
Table 6- 7: Access (and Removal) Instructions for Cables in Figure 6- 4
Name of Cable Access and Removal Instructions
1 Disk to CPU 1 Lift up on the latch at each side of both jacks.
2 Unpl ug the cable to be replaced from the disk drive and A03 CPU
assemblies. See Figure 6--4 on page 6--22 for jack location.
3 Reverse these instructions to install the replacement cable.
2 Backplane to Acquisition
Backplane to Attenuator
1 Fi nd the procedure A01 Backplane Assembly and its Mount in Table
6--6.
2 Fol low the access instructions found there to access and remove the
backplane assembly.
3 Unsol der the cable(s) to be replaced using a 15 watt solderi ng iron and
remove it.
4 Reverse these instructions to install the replacement cable.
3 Backplane to Front Panel
CPU to Front Panel
1 Fi nd the procedure A06 Front-Panel Assembly, ESD Shield, and Menu
Flex and Probe Code Flex Circuits in Table 6--6.
2 Fol low the access instructions found there to access and remove the
front panel assembly. The cables plugged into that assembly are
removed in the process.
3 Unpl ug the cable to be replaced from the backplane assembly. See
Figure 6--4 for jack location.
4 Reverse these instructions to install the replacement cable.
4 Backplane to Low Voltage Power Supply 1 Reach in from the top of the oscilloscope and unplug the cable at the
jacks at the front of the backplane and low voltage power supply
modules.
2 Reverse these instructions to install the replacement cable.
5 Aux Supply to Line Filter
Aux Supply to Low Voltage Power Supply
1 Fi nd the procedure A07 Auxiliary Power Supply in Table 6--6.
2 Fol low the access instructions found there to access and remove the
auxiliary power supply assembly.
3 Unsol der the cable to be replaced using a 15 watt soldering iron and
remove it from the auxiliary power supply.
4 Reverse these instructions to install the replacement cable.
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