From da6e435d4585e242382b6f6174f764d7946c6390 Mon Sep 17 00:00:00 2001
From: Matt Jenkins <matt@majenko.co.uk>
Date: Thu, 9 Oct 2025 21:28:19 +0100
Subject: [PATCH] Added readme

---
 MDACGAtoExtron/README.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 MDACGAtoExtron/README.md

diff --git a/MDACGAtoExtron/README.md b/MDACGAtoExtron/README.md
new file mode 100644
index 0000000..eb9ebcb
--- /dev/null
+++ b/MDACGAtoExtron/README.md
@@ -0,0 +1,12 @@
+CGA / MDA to Extron IN1606
+==========================
+
+This is a small adapter to convert CGA or MDA, or EGA
+if the jumper settings are set right, to the "Configurable"
+(i.e., VGA etc) inputs on the Extron IN1606 (and similar)
+video scalers.
+
+For CGA/MGA mode, enable all four inner solder jumpers on
+the underside of the board.
+
+For EGA mode enable just the outer two solder jumpers.