Filter
Top Products
Remove and Replace
WFM90D and WFM91D Service Manual
6-11
Instructions for serial numbers below B 020100. This procedure tells how to
remove and replace an LCD Display assembly (for example, to gain access to
another module). However, if you need to replace the LCD Display assembly
with a new one, please order the LCD Display Assembly Replacement kit from
Tektronix and follow the enclosed instructions.
Remove. To remove the LCD display assembly:
1. Remove the top cover. Refer to Top Cover on page 6--5.
2. Disconnect the wires from the two backlight connectors.
3. Grasp the sides of the LCD display to lift it up off of the locating feet and
disconnect the ribbon cable from the back of the display module.
NOTE. The cable connecting the display module to the Bottom board is a zero
insertion-force ribbon cable. To remove the cable from the connector housing,
pull out the connector latch, and then pull the ribbon cable out of the connector.
See Figure 6--4.
NOTE. Some early instruments used cushion pads instead of locating feet to hold
the display module in position. If your instrument has cushion pads, replace the
pads at this time with locating feet. Contact your local Tektronix representative
to order the necessary parts.
Replace. To replace the existing LCD Display Assembly:
1. Connect the ribbon cable from the Bottom board into the back of the display
module.
NOTE. The cable connecting the display module to the Bottom board is a zero
insertion-force ribbon cable. To install the cable into the connector, pull out the
connector latch and then push the ribbon cable into the connector housing.
When the cable rests against the back of the connector, press in the connector
latch to lock the cable in place. See Figure 6--4.
LCD - Older Instruments