TEF Tips - LPT Port Address
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Problem
Description
Gray or Green Face Icon TEF20 analyzer is not detecting attached computer. Relay clicking is heard.
Protocol Click = Single Left Click. [Bold Face] = Buttons/Menu Commands. Bold Face = Important Information. Italics = Filled in information. Underline = Text box.

On some installations, communications cannot be accomplished as Windows will incorrectly detect the printer port address.
1. Relay clicking is heard when TEF is powered up or when Reset is pushed.
2. Power LED is on.
3. Dip switch positions 7 and 8 are set to off (Up). (TEF Mode).
4. Dip switch positions 5 and 6 are set to on (Down) for 57600 Baud Rate.
5. You are running Sound Lab for Windows V6.6.4b or higher software.

Then ...

1. Launch TEF software.
2. Click the [Input] button on the Menu Bar.
TEF Menu Bar With Gray Face
3. Click on [Communications] on the pull down menu.
4. Under [Settings], make sure Com Port Baud Rate is set to 57600.
5. Manually select the LPT port base address.
6. Try the addresses in this order:
a. 0x378
b. 0x278
c. 0x3BC
See step 7 below.
Printer Port Address
7. Select an address, go to the [Hardware] Tab and select [LPT1], click [OK]. Listen for relays clicking.
8. When you hear relays clicking, the correct address has been selected.
Comm Hardware Tab
9. You should now have either an "unhappy" (green face) or "happy" (yellow face) in the TEF Status Icon. Not A Happy FaceA Happy Face
If the Icon is green, click on it. This will cause the TEF to reset. It is sometimes necessary to click on it more than once, especially under Windows XP.

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