From 2c5e6c356a4d177075357ddb7182b808fa8f2b86 Mon Sep 17 00:00:00 2001 From: Kolja Date: Sun, 8 Sep 2024 13:34:58 +0200 Subject: [PATCH 1/2] Improve help for one key don't working --- help/troubleshooting.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/help/troubleshooting.md b/help/troubleshooting.md index 6bfc75e..515d6dc 100644 --- a/help/troubleshooting.md +++ b/help/troubleshooting.md @@ -15,7 +15,7 @@ This page offers remedies to common problems after completing your build. If you ## One or more keys don't work -A single key not working, which has neighbors that work, is most often caused by either a faulty switch, or diode to column discontinuity. It can often be fixed with a [bodge wire][Bodge wire]. +A single key not working, which has neighbors that work, is most often caused by either a faulty switch, or diode to column discontinuity. First try to reflow the solder on diode and switch, otherwise it can often be fixed with a [bodge wire][Bodge wire]. You can either try measuring those with a multimeter, or turn the board on and bridge the diode's cathode to the right switch leg. If that produces a keypress, you can narrow it down further by bridging from the cathode to the switch leg (diode to switch discontinuity), and, separately, between the two switch legs (faulty switch). From b1b8139e1a861cffe2806716d5d6a916379ba05d Mon Sep 17 00:00:00 2001 From: Quentin Date: Mon, 9 Sep 2024 11:10:03 +0200 Subject: [PATCH 2/2] Update troubleshooting.md --- help/troubleshooting.md | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/help/troubleshooting.md b/help/troubleshooting.md index 515d6dc..2571811 100644 --- a/help/troubleshooting.md +++ b/help/troubleshooting.md @@ -15,12 +15,30 @@ This page offers remedies to common problems after completing your build. If you ## One or more keys don't work -A single key not working, which has neighbors that work, is most often caused by either a faulty switch, or diode to column discontinuity. First try to reflow the solder on diode and switch, otherwise it can often be fixed with a [bodge wire][Bodge wire]. +A single key not working, which has neighbors that work, is most often caused by either a faulty switch, or diode to column discontinuity. -You can either try measuring those with a multimeter, or turn the board on and bridge the diode's cathode to the right switch leg. If that produces a keypress, you can narrow it down further by bridging from the cathode to the switch leg (diode to switch discontinuity), and, separately, between the two switch legs (faulty switch). +There are a number of steps you can try, starting with the most simple. + +### Bad solder joint + +If the switch or diode are not soldered properly, this can cause the switch press to not register. +Try to reflow the solder on diode and switch. + +### Discontinuity + +If the reflow does not work, let's check if the key presses register. + +You can do so either by: + +- turning the board on and bridge the diode's cathode to the right switch leg +- checking that connection with a multimeter + +If that produces a keypress, you can narrow it down further by bridging from the cathode to the switch leg (**diode to switch discontinuity**), and, separately, between the two switch legs (**faulty switch**). To find out exactly where which diode is connected to which switch leg, please consult the [diagnosing a broken trace](./diagnose_broken_trace.html#inspect-the-schematics) guide. +If it's a faulty switch - you can replace the switch. If it's a discontinuity, you can [bodge wire][Bodge wire] it. + ## One or more rows or columns don't work If an entire row or column, or a large part of it, does not work, the most common cause is a broken row or column trace. They can often be fixed with a [bodge wire][Bodge wire].