No NIM Detected

[g8pgo]

I am having problems getting my MiniTioune working. Running TestMyMiniTioune_V2_3 I get the following output.
Have I got a faulty Tuner (SERIT FTS-4434LV ?

TIA


DLL version: 3.2.16
we have found 2 device(s)
............................................
device 0:
device serial N° DA6NQ4W5A
device named: USB <-> NIM tuner A
For I2C, we can use this device
FT2232H NIM_I2C is open
OK, we will use it with Handle: 10339976
............................................
device 1:
device serial N° DA6NQ4W5B
device named: USB <-> NIM tuner B
For TS, we can use this device
FT2232H FIFO open for TS2
OK, we will use it with Handle: 10340128
............................................
USB driver version: 2.12.36
>>>>>>>>>> NO MiniTiouner-Pro connected to USB AUX! <<<<<<<<<<<
==============================================================
****************** NIM I2C controler INIT *******************
NIM_I2C controler INIT OK
OK MPSSE is empty
Init MPSSE NIM I2C done!
**************************************************************
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NIM Test
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Trying to get the Demodulator serial number
No NIM detected
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
No NIM detected
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
ERROR: impossible to read a correct value from Demod chip
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END Test NIM
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[G4EWJ]

Which MiniTiouner hardware do you have?

Brian

[g8pgo]

V2 Board, FTS-4334 tuner and the other major parts supplied by BATC

[M5TXJ]

Have you fitted the resistor to the FTDI module?

73 Dave

[G4EWJ]

I'm using v2.0a of the tester, but even without the resistor, the program does report the decoder chip in the NIM being found at I2C address 0xD2 and then it says "Incompatible hardware".

Check voltages from the regulator.

Your output shows that it's failing when it tries to detect the NIM on the I2C bus. If you have a scope, look at SDA and SCL on J7 near the FT2232H module. This is the I2C bus and you should see some activity when the test runs.

Check the values of R4 and R5 under the FT2232H. These are pullup resistors for the I2C bus.

Brian

[g8pgo]

Thanks for your help guys
Have found the problem with a very strong magnifying glass.
A very fine whisker of solder between pins 1 & 2 of J7, dragging SCL down to ground.

[G4EWJ]

Jolly good.

Brian