GEM TestMon Tool (GEM TestMon 5.03

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GEM TestMon Tool (GEM TestMon 5.03

February 4, 2021 | | No Comments

TESTMON program is only in Italian language, sorry!

Testmon Tool for Keyboards 2000

The testmon program is specially created by Generalmusic to test the CPU and DSP boards of the 2000 series keyboards such as:

  • Promega 2
  • Promega 3
  • pRP Series

and all future keyboards developed with DRAKE technology.


To install TESTMON  run Testmon0503.exe   This can be found in (see Repository Downloads Search (Members))


The use of the TESTMON program by a service center must be limited to the finished product only as specified in the service manuals of the respective instruments, as the execution of other Test modes without suitable external hardware can compromise the use of the cards such as to require replacement and eventual return to Generalmusic to attempt recovery.

In addition, the use of the Testmon program empties the contents of the NANDFLASH memories on the CPU cards such as to ALWAYS require reloading the Operating System of the instrument being tested.

Some suggestions:

The following suggestions can be useful to identify a defective card without using the testmon program, it is always recommended to remove and reinsert the cards in the slots with extreme caution and always with the keyboard off.

If a keyboard lock with CPU motherboard and one or more slot-mounted DSP cards occurs one of the most likely causes is that one or more DSP cards are faulty or their contacts are no longer reliable, to check if the card is CPU is still efficient it is sufficient to remove (with due caution and with the instrument off) the DSP cards and turn the instrument back on, if the CPU card is working correctly the instrument must apparently work (control panel, etc.) without generating any sound.

At this point, by reinserting the DSP cards one by one (always with the instrument off of course and with extreme caution so as not to damage the gilding and the contacts) you can check which of these does not work, it is obvious that if the instrument had two DSP cards with only one inserted you will hear only part of the sounds, it is also obvious that if the instrument does not turn on again as soon as a DSP card is inserted, this card is probably faulty.

VERY IMPORTANT is that during these tests only the slots from which the DSP cards have been removed are used, as certain slots are used for each instrument.

Some Tips:

The tips that follows can be useful to locate a defective board without using the testmon program, it is always recommended to take off and take in the boards in the slots using the maximum precaution and always with the keyboard switched off.

If happen a keyboard blockage on a mother CPU with one or more DSP board mounted on it slots, one of the most probable reason is that one or more DSP board are defective or their contacts are not reliable, to verify if the CPU board is still efficient is sufficient take off (using precaution and the instrument switched off) the DSP boards, switch on again the instrument, if the CPU board operate correctly the instrument must be apparently operative (controls panel and so on..) without generate any sound.

At this point taking in again the DSP board one a time (always with instrument switched off and using the maximum careful to avoid the gold-plated contacts spoiling) you can verify which of these is defective, it is obvious that if the instrument is arranged originally with two DSP boards with only one you can heard only a portion of its sounds, it is always obvious that if you insert a DSP board and the instrument is halted whe you switch it on, this board is probably defective.

MOST IMPORTANT is that during these test you have to use exclusively the slots from you have previously take them out, as for each kind of instrument is expected the use of a certain slot.

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About Author

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Dave Williams

Original and sole proprietor of GEMWorks Europe, later renamed to GEMClub - Generalmusic Owners Club.

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