Tektronix TSG 95, Service Manual

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Maintenance
TSG 95 Service Manual
5–13
2. When J2 pulls free, lift the Main board and the LCD display away from the
case.
3. To separate the Main board and LCD display module, disconnect the LCD
display cable from J6, and gently pull the two assemblies apart at J1. The
rubber board spacers should remain attached to the LCD display.
4. Replacement is the reverse of removal.
Follow this procedure to remove the TSG 95 keypad:
1. Once the Main board is out of the way, lift the plastic spacer board out of the
instrument. This is held in place only by a friction fit.
2. Lift the Keypad board out of the instrument. This too is held in place by a
friction fit.
3. Peel the rubber keypad out of the front panel.
Follow this procedure to replace the TSG 95 keypad:
1. Place the Keypad board with the pins of the connector towards the work-
bench.
2. Place the rubber keypad on top of the Keypad board, positioning it so that
the ON button is in the corner closest the connector.
3. Adjust the rubber keypad so that the fingers on its back side fit through the
corresponding holes in the Keypad board.
4. Holding the keypad and Keypad board with the buttons up, slide the front
case onto them, aligning the rubber buttons with the holes for them in the
front case as you do so. The Keypad board is a friction fit in the front case
half, so you must apply some slight pressure to fully seat the assemblies into
the case.
5. Place the assembled front case and keypad face down on the workbench and
press the plastic spacer board into place. Align the cutout in the spacer board
with the connector. The plastic fingers will be facing up.
Keypad Removal
Keypad Replacement