Maintenance
1710J-Series Waveform Monitors
8–15
There are a number of solder connections that must be unsoldered to remove the
circuit board and soldered back to replace the circuit board. A soldering iron is
required for this procedure.
1. Remove the plug from J4 on the Power Supply board. This is the connection
to the Main board.
2. Remove the anode connection from the CRT and discharge it to ground.
WARNING.
The CRT may retain a dangerous charge. Ground the conductor of the
anode to discharge the CRT. Do not allow the conductor to touch your body or
any circuitry.
3. Unsolder the following connections: J1 pins 1 through 4, J3 pins 1 through
4, and the focus lead at J11.
4. Disconnect the ac line filter from the rear panel by unscrewing its two
mounting screws.
5. Use a screwdriver with #1 Pozidrive tip to disconnect the power on/off
switch from the front casting.
6. Remove the seven screws that are holding the Power Supply board down.
See Figure 8–8.
7. Remove the board by sliding it forward and lifting it up.
A1 Pwr Supply Bd
J4
J2
J1
J3
Front
J5
Figure 8–8: Screws holding the power supply circuit board (A1) in place
To replace the power supply circuit board perform the following procedure:
1. Replace the board by sliding it back into place.
2. Reinstall the seven screws that hold the Power Supply board down. See
Figure 8–8.
Содержание 1710J Series
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