ER3-1M TechTools, ER3-1M Datasheet - Page 10

• Manufacturer Part Number: ER3-1M
• Description: EMULATOR EPROM ECONOROM III 1MEG
• Manufacturer: TechTools
• Series: EconoROM™ IIIr
• Type: Memoryr

Specifications of ER3-1M

• Contents: ER3 EconoROM III Emulator, Cables (Daisy-chain, LPT and Target) and more
• For Use With/related Products: EPROMs
• For Use With: CBL08-25 - 25 FT DOWNLOAD CABLE UPGRADEC32D-6 - 6" TARGET CABLE IDC TO 32PIN DIPC28D-6 - 6" TARGET CABLE IDC TO 28PIN DIPPS-RT1 - EXTERNAL PWR SUPPLY
• Other names: ER31M

Using External Power
Connect the external power supply but leave the target turned off. The emulator status LED should glow a
STEADY RED, indicating the presence of emulator power but not target power. If not, disconnect the
emulator power and refer to the troubleshooting tips below to correct the problem before continuing.
Turn on target power. The emulator status LED should change from a steady RED GLOW to a steady
GREEN GLOW. If not, refer to the troubleshooting tips below before continuing.
LED Turns OFF:
Something is VERY wrong with the target wiring, cables or adapters.
LED STAYS RED:
The emulator did not sense at least 3V from the target power pins.
LED Flashes GREEN:
The emulator detected the target’s power, but the reset line is not properly connected. When the emulator is
first powered up, it asserts RESET to keep the target from running until it has received a download. The
flashing GREEN LED indicates target activity.
EconoROM III User’s Manual
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Verify the external power supply is properly connected and plugged into a powered socket.
Verify the external power supply is providing a regulated 5VDC at 300ma or more.
Verify the external power supply is wired correctly (center is positive, ring is ground).
Disconnect the target cable and re-apply emulator power. If the LED now GLOWS RED, the
target wiring, adapters or cabling are incorrect.
Verify all target cable connections
Verify the target cable is plugged in correctly (pin 1 orientation)
Verify that any adapters you might be using are the correct pin-outs.
Verify the RESET line is connected
Verify your selection of the RESET attachment point
Verify your selection of RESET polarity.
power. Correct the problem before reapplying power!
Immediately turn off target power and then emulator
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