The XA1541 mini-adaptor

Important notes


You need the following parts to build this adaptor:

Step 1. Build the board of the adaptor, cut it to shape and drill the holes in it, according to the board diagram (300 DPI resolution): top side and bottom side. Both diagrams show the board as viewed from that particular side. Use through-coppering to connect the two sides through the holes.

Step 2. Build the amplifier bridges, consisting of one transistor and one resistor each, onto the appropriate places. These include the following connections:

Parallel plug Parallel plug
13, Select 1, Strobe
12, PaperEnd 14, AutoFeed
11, Busy 17, SelectIn
10, Ack 16, Init

The collector of each transistor should be pointing towards the pin in the left column of the table. The base of each transistor should be connected to one side of the resistor; the other side of each resistor should be connected to the pin in the right column of the table. The emitters of the transistors should be connected together to the common ground of the adaptor.

The parts should be soldered the following way onto the board. This diagram shows the top side of the board as viewed from above.

[XA1541 mini-adaptor]

Step 3. Solder and then glue the board between the two pin rows of the parallel plug. The top side of the adaptor, the one with the electronical components, should be leveled with the longer side of the parallel plug, the one with 13 pins.

Circuit diagram

[XA1541 mini-adaptor]

You can find the description of all parts used on the diagrams at the legend page.

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