1,330
edits
AFG5102/Repairs: Difference between revisions
added LDC photo and extra info.
Jaredcabot (talk | contribs) (Added gerber file and picture.) |
Jaredcabot (talk | contribs) (added LDC photo and extra info.) |
||
| Line 26: | Line 26: | ||
If the contrast is too dark on the new LCD, the contrast pin (third from the left) on the header connector from the front panel PCB to the LCD PCB can be removed entirely, and the connection made with a 3.6 kΩ resistor around the edge of the PCB. This (or a similar value) should bring the contrast back to center scale. | If the contrast is too dark on the new LCD, the contrast pin (third from the left) on the header connector from the front panel PCB to the LCD PCB can be removed entirely, and the connection made with a 3.6 kΩ resistor around the edge of the PCB. This (or a similar value) should bring the contrast back to center scale. | ||
Some 14mm long heat shrink of an appropriate size slipped over the two red LED's (no need to shrink it) will help prevent light bleed from the new LCD causing the LED's to appear illuminated. | |||
To adjust the contrast and turn the backlight on and off, press <SPCL>, then <2> <2> <0> followed by <ENTER>. The contrast can be adjusted using the up and down arrow keys and the backlight turned on and off using the <ENTER> key. | To adjust the contrast and turn the backlight on and off, press <SPCL>, then <2> <2> <0> followed by <ENTER>. The contrast can be adjusted using the up and down arrow keys and the backlight turned on and off using the <ENTER> key. | ||
==Pictures== | |||
<gallery> | |||
Tek_AFG5101_LCD_Replaced.jpg|Replacement LCD installed with resistor mod | |||
</gallery> | |||
[[Category:Instrument repair reports]] | [[Category:Instrument repair reports]] | ||