The 40-BIT PORT 3.3V ADAPTER (p/n INN-8484-5) enables SIMCHECK to test 3.3V 72-pin SIMM modules. It uses latest electronic circuitry for true 3.3V testing and the same high quality SIMM ZIF socket for safe and easy module handling.
The 40-BIT PORT 3.3V ADAPTER is conveniently installed in the 40-BIT PORT expansion slot, and is automatically recognized by SIMCHECK. The test procedure is identical to the 40-BIT PORT test.
IMPORTANT NOTE: This tester connects to SIMCHECK via the 40-BIT PORT (p/n INN-8484) which is sold separately.
40-BIT PORT 3.3V COMPATIBILITY: Your 40-BIT PORT should have serial number #20158 or higher for compatibility with the new 3.3V tests performed with this adapter. This serial number cutoff corresponds to May 9, 1995 or later. If your 40-BIT PORT has an earlier serial number, the 3.3V tests will be actually done at 3.7V-4.1V instead of 3.0V-3.5V. Please consult application note INN-8448-APN09 "40-BIT PORT 3.3V COMPATIBILITY MODIFICATION" which comes with this adapter, or contact your dealer.
This adapter connects to SIMCHECK via the 40-BIT PORT (see Section 7.15). Plug the adapter into the 40-BIT EXPANSION PORT of the 40-BIT PORT only when SIMCHECK is turned OFF.
CAUTION: Failure to turn SIMCHECK OFF when connecting or disconnecting the 40-BIT PORT 3.3V ADAPTER to the 40-BIT PORT may result in damage to the PAL chip of the ADAPTER!
Turn SIMCHECK ON once the 40-BIT PORT 3.3V ADAPTER is installed in the 40-BIT PORT and insert a 3.3V SIMM module.
Press F1 to start the BASIC test. Since the test is done at 3.3V, you will see the message '3V' at the top right corner of the display during BASIC test (and during the final test of the EXTENSIVE test).
The 3.3V ADAPTER test procedure is identical to the 40-BIT PORT module test as discussed in Section 3.8.3. Since the voltage levels are different, you will see that the Voltage Cycling test of the EXTENSIVE test goes through 3.0V, 3.3V, and 3.5V instead of 4.5V, 5.0V, and 5.5V. Also, the Voltage Bounce test of the EXTENSIVE test is performed between 3.0V to 3.5V, instead of 4.5V to 5.5V.
Testing 5V modules on this 3.3V Adapter: Regular 5V SIMM should be tested directly on the 40-BIT PORT. You may safely try to test the regular 5V modules on this 3.3V adapter, but the test results will be much different than those obtained at 5V: there will be a large speed degradation, and even functional test failures.
Required EPROM Version: 2.30 or above.
NOTE: 3.3V 72-p SIMM modules are supported directly on SIMCHECK II without the need of an adapter extension.
