Hi All,
Dear old Ma's ancient Toshiba microwave oven (model ER-7700) has an intermittent problem with the display, which is of the VFD variety. The display works fine - sometimes, but fades out or completely disappears during use. Tapping on the display usually brings it back, but only temporarily until it drops out again. I've had it apart several times looking for the obvious bad connection / solder etc. but no joy. Hoping someone on here can suggest a likely failure mode for this type of display and how best to go about troubleshooting it. I attached a short video clip to show the problem. Thanks.
Dear old Ma's ancient Toshiba microwave oven (model ER-7700) has an intermittent problem with the display, which is of the VFD variety. The display works fine - sometimes, but fades out or completely disappears during use. Tapping on the display usually brings it back, but only temporarily until it drops out again. I've had it apart several times looking for the obvious bad connection / solder etc. but no joy. Hoping someone on here can suggest a likely failure mode for this type of display and how best to go about troubleshooting it. I attached a short video clip to show the problem. Thanks.
Comment