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HP 97s test
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07-15-2023, 07:06 AM
Post: #1
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HP 97s test
Hello all,
I just got a HP97s with good shape both calculator & BCD interface. the calculator seems work well. but for the BCD interface. Does anyone know how to test it? I just tested it with multi-meter to measure the voltage between: ---- pin1(GND) and pin26 DC 0V ---- pin1(GND) and pin27 DV 0.3mv ---- pin1(GND) and pin28,29,30/ it is DC4.5V ---- pin1(GND) and pin6~25 & P31~50/ it is DC5.3V please give me some advice, thanks! BR, bai |
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HP 97s test - zixingcheche - 07-15-2023 07:06 AM
RE: HP 97s test - AndiGer - 07-15-2023, 08:38 AM
RE: HP 97s test - zixingcheche - 07-15-2023, 09:21 AM
RE: HP 97s test - teenix - 07-15-2023, 09:38 AM
RE: HP 97s test - John Ioannidis - 07-18-2023, 01:33 AM
RE: HP 97s test - teenix - 07-18-2023, 02:04 AM
RE: HP 97s test - AndiGer - 07-18-2023, 05:10 PM
RE: HP 97s test - zixingcheche - 07-15-2023, 10:01 AM
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