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Imho the microQ is a positive only design. No analogue filter like
on the wave.<br>
There are 2 x 7805, a single LF33 and the 12V from the PSU.<br>
Then you have a few mosfets and the logic chips for the button
multiplexing.<br>
<br>
Not sure which rails there are left to check.<br>
Even the output OpAmps are running in single rail configuration.<br>
<br>
julian<br>
<br>
<br>
<div class="moz-cite-prefix">Am 23.02.2017 um 18:10 schrieb Peter
Pearson:<br>
</div>
<blockquote
cite="mid:CA+qbVc91uqYm+QEJozqiVjsyWc8GnHxCgsMoHwzOz8GpW4a3Wg@mail.gmail.com"
type="cite">
<div dir="ltr">If memory serves, they're similar enough to help
you get orientated. You should still check the other supply
rails.</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Feb 23, 2017 at 12:01 PM,
Julian Schmidt <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:elfenjunge@gmx.net" target="_blank">elfenjunge@gmx.net</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> I'm afraid thats for
the microWAVE not the microQ.<br>
<br>
But thanks nonetheless.<span class="HOEnZb"><font
color="#888888"><br>
<br>
julian</font></span>
<div>
<div class="h5"><br>
<br>
<div class="m_-4620647226517329397moz-cite-prefix">Am
23.02.2017 um 17:31 schrieb Peter Pearson:<br>
</div>
<blockquote type="cite">
<div style="white-space:pre-wrap">Check +/- 12V
<a moz-do-not-send="true" href="https://elektrotanya.com/waldorf_microwave.pdf/download.html" target="_blank">https://elektrotanya.com/<wbr>waldorf_microwave.pdf/<wbr>download.html</a>
</div>
<div class="gmail_quote">
<div dir="ltr">On Thu, Feb 23, 2017 at 11:30 Peter Pearson <<a moz-do-not-send="true" href="mailto:electrocontinuo@gmail.com" target="_blank">electrocontinuo@gmail.com</a>>
wrote:
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="white-space:pre-wrap" class="m_-4620647226517329397gmail_msg">Check +/- 12V</div>
<div class="gmail_quote m_-4620647226517329397gmail_msg">
<div dir="ltr" class="m_-4620647226517329397gmail_msg">On Thu, Feb 23, 2017 at
11:29 Terry Shultz <<a moz-do-not-send="true" href="mailto:thx1138@earthlink.net" class="m_-4620647226517329397gmail_msg" target="_blank">thx1138@earthlink.net</a>> wrote:
</div>
<blockquote class="gmail_quote m_-4620647226517329397gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word" class="m_-4620647226517329397gmail_msg">Hi
All,
<div class="m_-4620647226517329397gmail_msg">
</div>
<div class="m_-4620647226517329397gmail_msg">On another note , if this is a
DSPB56362 device, then Waldorf wold not have put any
of their code into this device.</div>
<div class="m_-4620647226517329397gmail_msg">
</div>
<div class="m_-4620647226517329397gmail_msg">I do not recall Motorola doing a
custom DSPx56362 for Waldorf as the volumes used would
not support the mask charges.</div>
<div class="m_-4620647226517329397gmail_msg">
</div>
<div class="m_-4620647226517329397gmail_msg"><a moz-do-not-send="true" href="http://www.nxp.com/assets/documents/data/en/data-sheets/DSP56362.pdf" class="m_-4620647226517329397gmail_msg" target="_blank">http://www.nxp.com/assets/<wbr>documents/data/en/data-sheets/<wbr>DSP56362.pdf</a></div>
<div class="m_-4620647226517329397gmail_msg">
</div>
<div class="m_-4620647226517329397gmail_msg">regards,</div>
<div class="m_-4620647226517329397gmail_msg">
</div>
<div class="m_-4620647226517329397gmail_msg">Terry</div>
</div>
<div style="word-wrap:break-word" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">
</div>
<div class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">On Feb 23, 2017, at 8:13
AM, Peter Pearson <<a moz-do-not-send="true" href="mailto:electrocontinuo@gmail.com" class="m_-4620647226517329397gmail_msg" target="_blank">electrocontinuo@gmail.com</a>>
wrote:</div>
<div class="m_-4620647226517329397gmail_msg">
<div style="white-space:pre-wrap" class="m_-4620647226517329397gmail_msg">Check the supply means check all the supplies. Do you have all the other rails and reference voltages? The service manual is online and you could check that for resets etc. You should also consider contacting Waldorf for advice. </div>
<div class="gmail_quote m_-4620647226517329397gmail_msg">
<div dir="ltr" class="m_-4620647226517329397gmail_msg">On Thu, Feb
23, 2017 at 10:46 Julian Schmidt <<a moz-do-not-send="true" href="mailto:elfenjunge@gmx.net" class="m_-4620647226517329397gmail_msg" target="_blank">elfenjunge@gmx.net</a>>
wrote:
</div>
<blockquote class="gmail_quote m_-4620647226517329397gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg"> yeah but these are ROM
not RAM.
The datasheet says "These ROMs may be
factory programmed with data or programs
provided by the application developer."
No idea if waldorf went all the way to
burn a custom loader into these ROMs at
the chip factory.
At least the normal firmware should be
located on the flash, otherwise you could
not update it.
julian</div>
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938moz-cite-prefix m_-4620647226517329397gmail_msg">Am 23.02.2017 um 16:39
schrieb Terry Shultz:
</div>
</div>
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg">
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
Hello All,
<div class="m_-4620647226517329397gmail_msg">
</div>
<div class="m_-4620647226517329397gmail_msg">The DSP56362
Motorola DSP does have P, X, and Y
memory</div>
<div class="m_-4620647226517329397gmail_msg">
</div>
</blockquote>
</div>
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg">
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938page m_-4620647226517329397gmail_msg" title="Page 4">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938layoutArea m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12.000000pt;font-family:'TimesNewRomanPSMT'" class="m_-4620647226517329397gmail_msg">On-Chip
Memories
— Modified Harvard
architecture allows
simultaneous access to
program and data memories —
30720 x 24-bit on-chip
program ROM</span><span style="font-size:10.000000pt;font-family:'TimesNewRomanPSMT';vertical-align:5.000000pt" class="m_-4620647226517329397gmail_msg">1 </span><span style="font-size:12.000000pt;font-family:'TimesNewRomanPSMT'" class="m_-4620647226517329397gmail_msg">(disabled
in 16-bit compatibility
mode)
— 6144 x 24-bit on-chip
X-data ROM</span><span style="font-size:10.000000pt;font-family:'TimesNewRomanPSMT';vertical-align:5.000000pt" class="m_-4620647226517329397gmail_msg">1
</span><span style="font-size:12.000000pt;font-family:'TimesNewRomanPSMT'" class="m_-4620647226517329397gmail_msg">— 6144 x
24-bit on-chip Y-data ROM</span><span style="font-size:10.000000pt;font-family:'TimesNewRomanPSMT';vertical-align:5.000000pt" class="m_-4620647226517329397gmail_msg">1
</span><span style="font-size:12.000000pt;font-family:'TimesNewRomanPSMT'" class="m_-4620647226517329397gmail_msg">— Program
RAM, instruction cache, X
data RAM, and Y data RAM
sizes are programmable </span></p>
</div>
</div>
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938layoutArea m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt;font-weight:700" class="m_-4620647226517329397gmail_msg">Instruction
Cache </span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">Disabled
Enabled Disabled Enabled </span></p>
</div>
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt;font-weight:700" class="m_-4620647226517329397gmail_msg">Switch
Mode </span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">Disabled
Disabled Enabled Enabled </span></p>
</div>
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt;font-weight:700" class="m_-4620647226517329397gmail_msg">Program
RAM Size </span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">3072 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">×
</span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit
2048 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit
5120 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit
4096 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit </span></p>
</div>
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt;font-weight:700" class="m_-4620647226517329397gmail_msg">Instruction
Cache Size </span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">0
1024 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit 0
1024 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit </span></p>
</div>
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt;font-weight:700" class="m_-4620647226517329397gmail_msg">X Data RAM
Size </span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">5632 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">×
</span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit
5632 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit
5632 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit
5632 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit </span></p>
</div>
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt;font-weight:700" class="m_-4620647226517329397gmail_msg">Y Data RAM
Size </span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">5632 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">×
</span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit
5632 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit
3584 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit
3584 </span><span style="font-size:9.000000pt;font-family:'SymbolMT'" class="m_-4620647226517329397gmail_msg">× </span><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">24-bit </span></p>
</div>
</div>
<img moz-do-not-send="true" alt="page4image15160" id="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-36236867747939419389EE12412-1A94-4351-94CB-9E17DC715F7E" class="m_-4620647226517329397gmail_msg"> <img moz-do-not-send="true" alt="page4image15320" id="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-362368677479394193899CD177E-AFCB-4939-B45D-3CCB4B503B76" class="m_-4620647226517329397gmail_msg"> </div>
</div>
</blockquote>
</div>
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg">
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938page m_-4620647226517329397gmail_msg" title="Page 4">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938layoutArea m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:9pt" class="m_-4620647226517329397gmail_msg">1. </span></p>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg">
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938page m_-4620647226517329397gmail_msg" title="Page 4">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938layoutArea m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12.000000pt;font-family:'TimesNewRomanPSMT'" class="m_-4620647226517329397gmail_msg">— 192 x
24-bit bootstrap ROM
(disabled in sixteen-bit
compatibility mode) </span></p>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg">
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938page m_-4620647226517329397gmail_msg" title="Page 4">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938layoutArea m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<ul class="m_-4620647226517329397gmail_msg">
<li style="font-size:12.000000pt;font-family:'TimesNewRomanPSMT'" class="m_-4620647226517329397gmail_msg">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">Off-Chip
Memory Expansion </span></p>
<ul style="list-style-type:none" class="m_-4620647226517329397gmail_msg">
<li class="m_-4620647226517329397gmail_msg">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">—
Datamemoryexpansionto256Kx24-<wbr>bitwordmemoryforP,X,<wbr>andYmemoryusingSRAM.
</span></p>
</li>
<li class="m_-4620647226517329397gmail_msg">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">—
Datamemoryexpansionto16Mx24-<wbr>bitwordmemoryforP,X,<wbr>andYmemoryusingDRAM.
</span></p>
</li>
<li class="m_-4620647226517329397gmail_msg">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">—
Externalmemoryexpansionport(<wbr>twenty-<wbr>fourdatapinsforhighspeedextern<wbr>almemoryaccessallowing
for a large number
of external accesses
per sample) </span></p>
</li>
</ul>
</li>
</ul>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg">
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938page m_-4620647226517329397gmail_msg" title="Page 4">
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938layoutArea m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938column">
<ul class="m_-4620647226517329397gmail_msg">
<li style="font-size:12.000000pt;font-family:'TimesNewRomanPSMT'" class="m_-4620647226517329397gmail_msg">
<ul style="list-style-type:none" class="m_-4620647226517329397gmail_msg">
<li class="m_-4620647226517329397gmail_msg">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">— Chip select logic for
glueless interface
to SRAMs </span></p>
</li>
<li class="m_-4620647226517329397gmail_msg">
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">— On-chip DRAM controller for
glueless interface
to DRAMs</span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">
</span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">regards,</span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">
</span></p>
<p class="m_-4620647226517329397gmail_msg"><span style="font-size:12pt" class="m_-4620647226517329397gmail_msg">Terry </span></p>
</li>
</ul>
</li>
</ul>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg">
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg">On Feb 23,
2017, at 7:17 AM, Julian Schmidt
<<a moz-do-not-send="true" href="mailto:elfenjunge@gmx.net" class="m_-4620647226517329397gmail_msg" target="_blank">elfenjunge@gmx.net</a>>
wrote:</div>
<div class="m_-4620647226517329397gmail_msg">
<div bgcolor="#FFFFFF" text="#000000" class="m_-4620647226517329397gmail_msg"> I checked
the 3.3V supply and it
delivers stable 3.3V
Xtal is running at 14.3MHz and
the Clock IC is forwarding the
clock to the DSP
I only worked with SHARC DSPs
so far, but I guess the
motorola DSP has no internal
program memory and is bootet
by the uC from flash and has
its OS stored in the attached
SRAM?
The rest of the PCB,
especially around the DSPs
looks pretty good. All sketchy
looking parts where located to
the left of the uC and the DSP
is on its right side. Caps
look good, too.
Here is a pic of the board.
<a moz-do-not-send="true" class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938moz-txt-link-freetext" href="http://chipmusik.de/dump/uQ.jpg" target="_blank">http://chipmusik.de/dump/uQ.<wbr>jpg</a>
I'm a bit concerned that the
firmware update does not seem
to work, as I guess the DSP
should not be involved with
that.
Maybe an indication that it
could be the flash indeed?
Any idea how to check the
flash?
Julian
<div class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938moz-cite-prefix m_-4620647226517329397gmail_msg">Am 23.02.2017 um
15:56 schrieb Christian
Tecl:
</div>
<blockquote type="cite" class="m_-4620647226517329397gmail_msg">
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938mail_android_message" style="line-height:1;padding:0.5em">Hello list - hello Julian....
I guess you already
checked everything round
that flip flop, resistors,
diodes etc... To me there
are also reasons to
suggest a problem with
power supply, maybe you
check that also before
soldering that dsp... And
think about the
possibility that it could
be the flash, also. Like
to hear what you are
discovering. Greets
Christian
--
Diese Nachricht wurde von
meinem Android
Mobiltelefon mit GMX Mail
gesendet.</div>
<div class="m_-4620647226517329397gmail_msg
m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938mail_android_quote" style="line-height:1;padding:0.3em">Am 23.02.2017, 15:24, Julian Schmidt
<a moz-do-not-send="true" class="m_-4620647226517329397m_-7896264154601678978m_-8617281656987724919m_-3623686774793941938moz-txt-link-rfc2396E m_-4620647226517329397gmail_msg" href="mailto:elfenjunge@gmx.net" target="_blank"><elfenjunge@gmx.net></a>
schrieb:
<blockquote class="gmail_quote m_-4620647226517329397gmail_msg" style="margin:0.8ex 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
I have a broken microQ
in the workshop right
now.
It arrived with a
scrambled LCD that only
showed garbage.
after opening it up I
saw someone butcher the
D-Flipflop (bend and
shorted pins)
after replacing it the
unit boots again,
waldorf welcome screen,
os2.2,
then preset name.
yay!
bad news is the unit
immediately freezes. No
buttons and encoders do
something. :(
I tried the firmware
update but on reveiving
the sysex data the power
button makes a quick
flash, 4 or 5 vertical
bars appear in the LCD
and
then nothing happens.
Pingpong chaselight on
the Inst. 1-4 LEDs and
the
message "please play
back dump" or something
like that in the screen.
In factory test mode all
buttons, LEDs and
encoders work.
Audio out test does not
work (silence on all
outs)
and the DSP test fails.
it only shows:
1:----- 2:----- 3:sig!
and repeatedly flashes
"DSP REBOOT" every
second.
So my guess is that I
have a broken DSP.
Is it worth it to try
and replace the DSP?
they are still in stock
at
digikey.
But I am open for other
ideas since I'm not keen
on desoldering the
LQFP144.
Best,
Julian
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