TDS310 datasheet(176/242 Pages) ETC2

176 / 242 page

Removal and Replacement

Maintenance

818

9. Reinstallation:

a. If you are replacing the menu flex circuit, perform the following sub

parts:

H Wipe the front of the chassis using isopropyl alcohol and a clean,

lint free cloth. Let it dry.

H Find the score line in the adhesive backing and peel the backing

off the menu flex circuit.

H Carefully align the three holes on the menu flex circuit to the

locator studs on the front of the main chassis. When the align

ment is correct, press the flex circuit against the chassis so it

adheres to the chassis.

H Clean the surface of the menu flex circuit using isopropyl alcohol

and a clean, lint free cloth.

b. Reconnect the main board and menu flex circuit cables to the back of

the front panel assembly.

c. Carefully reinsert the front panel assembly into the main chassis left

side first.

1. Have handy a screwdriver with a size T 15 TorxR tip (Items 1 and 2).

2. Remove the front trim ring as outlined on page 815.

3. Set the oscilloscope so its top side is down on the work surface and its

front is facing you.

4. Ifpresent, unplug the option board cables.

5. Unplug the power supply cable at the power supply.

6. Unplug the monitor cable at the monitor assembly and power supply;

carefully route the cable out through its access hole.

7. Unplug the front panel cable.

8. Using Figure 89 as a guide, remove the eight T 15 TorxR screws secur

ing the main board assembly to the chassis.

Main Board

Assembly

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