Tektronix 2230 Service Manual

Maintenance—2230 Service
To remove the instrument cabinet, perform the follow
ing steps:
NOTE
For instruments with a power-cord securing clamp;
remove the Phillips-head screw holding the power-
cord securing clamp before disconnecting the power
cord.
1. Disconnect the power cord from the instrument.
2. Remove two screws, one each from the right-rear
side and bottom front of the cabinet.
3. Remove two screws from the rear panel (located on
each side) and remove it from the instrument.
4. Remove four screws from the left rear side of the
cabinet securing the side panel to the instrument side
chassis.
5. Remove the side panel from the instrument.
6. Pull the front panel and attached chassis forward
and out of the cabinet.
NOTE
To ensure that the cabinet is property grounded to
the instrument chassis, the screws at the right-rear
side and the bottom front of the cabinet must be
tightly secured.
7. To reinstall the cabinet, perform the reverse of the
preceding steps. Ensure that the cabinet is flush with the
rear of the chassis and that the cabinet and rear-panel
holes are align with the screw holes in the chassis frame.
Storage Circuit Board in Servicing Position
The following procedure describes how to secure the
Storage circuit board into the servicing position to facilitate
instrument disassembly and reinstallation for individual
components or subassemblies.
1. Remove the five MEMORY buttons, SELECT
WAVEFORM button, four ACQUISITION buttons, STORE
button, and extension shafts from their respective
switches by inserting a small screwdriver between the
extension shaft and the switch shaft. Push down and for
ward until the extension shaft is disengaged and pull the
shafts straight back through the front panel.
2. Disconnect the following two connectors from the
Storage circuit board.
a. P2111, a four-wire connector located near the mid
dle left edge of the Storage circuit board.
b. P2112, a four-wire connector located near the mid
dle left edge of the Storage circuit board.
3. Remove three Storage circuit board screws that are
identified by the etched words “ Remove To Lift Board”
(see Figure 6-7 for the location of the Storage board three
screws).
4. Lift the Storage circuit board up until the cable of
P9430 (on the front edge of the Storage circuit board)
clears the back of the CURSORS control.
5. Remove P9430, a six-wire connector from the
Storage circuit board by pulling it toward the front panel.
6. Continue to raise up the Storage circuit board to it
standing position ensuring that the Board Latch clears the
top of the chassis side rail. Place the Board Latch tab in
the chassis side rail slot.
To lower the Storage circuit board into the instrument
and to reconnect the connectors, perform the reverse of
the preceding steps.
Support Chassis
The support chassis divides the inside of the instrument
into two parts by connecting the center of the rear chassis
and the front chassis together. The support chassis can
be removed and reinstalled as follows:
1. Perform the “ Storage Circuit Board in Servicing
Position” removal procedure.
2. Remove the crt anode lead and High-Voltage Multi
plier lead connectors from the anode clip on the Power-
Supply shield.
3. Remove the anode clip from the Power-Supply
shield through the hole in the support chassis.
6-35

Tektronix 2230 Specifications

General

Brand	Tektronix
Model	2230
Category	Test Equipment
Language	English