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Updated: 19.dec.2019 Patrick.J aka DSL-man


DO NOT SHARE THIS INFOS in public domain - its copyrighted (by Matthias and me), thank you.


IDMatthiasIssueNr.Issue release date IssueSolution
129

19.dec.2019

When mounting the matrix to the lower frontpanel by the ground terminals, a distance of 1 - 1.5 mm can be noticed between the matrix's surface and the frontpanel.
Caused by the production charge of the ground terminals. In this charge the isolating upper bushing of the terminal is longer than usual.
See the attached graphic therefor.

File down the narrow part of the bushing to at least 3 mm or less.
Use a file or some sandpaper, a countersink will also help.
Another option is to re-drill the matrix at these two holes to the diameter of 8.6 mm.

Plan B: try a washer or 2 of them (not tested yet)

22816.dec.2019

At the Z board there is a link missing on the 12 V trace.
See the attached photograph.

The failure affects OSC 1.

32716.dec2019

At the Z board the captions of the presets are not printed.

See herefor the attached page of the population guide.

426

08.dec2019

"I meanwhile realized the EK construction manual gives no detailled information about mounting the matrix to the lower panel. So I decided to extend the manual by an additional page.

Find this new page attached to this Newsletter.

With this change, the actual EK construction manual now is rev. 1.24 and will be part of the next shipments (serial 078, 101, 106)."

525

04.dec.2019

There is no trace error at the X board.

It is at the Y board - I am sorry.

As reported, it was already soldered by Derek before packing the Electronics-Kit.
But its good to check this one more time, as the soldered wire can be fallen off whilst transportation or handling.

Therefor see the attached photo. If this link is not present, solder a piece of wire to complete the trace.

624

03.dec.2019

There is a track error at the -9 V rail.
Its at the bottom of the Z board area in the BACKPLANE !!

See the attached backplane photo.

Solution: Solder a cable as shown in the picture (yellow link) to connect the right part of the -9 V rail.
The upper panel is usually connected to the power rails by one of the 4-pin sockets in this area.



722

03.dec

Info only: Please refer to page 2 of the Population-Guide Version 1.92

8--23.dec

Info: the 1K 2Watt resistor for the X board is for the PSU wiring... not on the X board pcb

use 1% metal film resistors or select the 2% resistors on board X.










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