Reparatur einem TM machine
 

Bastler Tipp.

Beim TM habe ich das original Test PCB (printed circuit board) repariert von Richard Lang. Es ist einem TM 36 Mhz mit 8 MB DRAM, das sind 64 Chips !

Es gab keinem Fehler beim starten, weil die DRAM nicht getestet wird, aber beim Test mit ENT/Pfeile links gab es eine DRAM Error.

Bei mir einem Error im weise 555F und die Speicherplatz 80200000. Ich war mir bewusst das es einem DRAM Chip Fehler war, aber welche ;)

Habe darum alle Chips einmal raus und rein gesteckt und das alles in einem Excel zusammengefast.

Die Andeutung 555F indiziert einem 32 Bit data check. Wenn es 5555 oder AAAA war, hat es in Ordnung gewesen, aber die 555F indiziert mit dem 'F' das es einem Problem gibt mit das Speicherchip wo die 'F' Bits sind, was in diesem die niedrigste 4 Bit dem 16 Bit data. Ebenso habe ich einem Error gehabt mit EAAA, was bedeutet einem Fehler im höchste 4 Bit teil dem 16 Bit data.

Die DRAM Chips sind 256 Kb (Kilobit)*4 Bits. Mit 16 Chips gibt es 2MB (Megabyte). Mit 64 Chips, 8MB, wie in das Test PCB von Richard Lang.

Im Tabelle die Layout die 64 Chips, und damit einem Möglichkeit gleich zu sehen welche Chip einem Problem hat.

Zum Beispiel, die DRAM Error 555F mit 80200000, bedeutet das die Chip ganz rechts unten kaputt ist.. und das hat gestimmt, replazierung, und voila er funktioniert wieder.
Oder mehr complex, EDAA mit 80580000, bedeutet das die chips ganz links oben und 4 platze darunter beide defect sind...

PS, wenn so einem Fehler da ist bemerkt man eigentlich nicht so viel, aber es gibt fremde Zuge. Die DRAM wird genutzt für dem Hash Tabelle, und damit spielt dem TM noch valide Zuge, aber fremde....
So einem DRAM test mit dem ENT+Pfeile Links ist eine gute idee bevor einem turnier mit dem TM ;)




<table width="752" style="width: 568pt; border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0"><colgroup><col width="94" style="width: 71pt; mso-width-source: userset; mso-width-alt: 3356;" span="8"><tbody><tr height="20" style="height: 15pt;"><td width="94" height="20" style="border-width: 1pt 0px 1pt 1pt; border-style: solid none solid solid; border-color: windowtext black windowtext windowtext; width: 71pt; height: 15pt; background-color: transparent;">Bank 1</td><td width="94" style="border-width: 1pt 1pt 1pt 0px; border-style: solid solid solid none; border-color: windowtext windowtext windowtext black; width: 71pt; background-color: transparent;">Bank 1</td><td width="94" style="border-width: 1pt 0px; border-style: solid none; border-color: windowtext black; width: 71pt; background-color: transparent;">Bank 2</td><td width="94" style="border-width: 1pt 1pt 1pt 0px; border-style: solid solid solid none; border-color: windowtext windowtext windowtext black; width: 71pt; background-color: transparent;">Bank2</td><td width="94" style="border-width: 1pt 0px; border-style: solid none; border-color: windowtext black; width: 71pt; background-color: transparent;">Bank 3</td><td width="94" style="border-width: 1pt 1pt 1pt 0px; border-style: solid solid solid none; border-color: windowtext windowtext windowtext black; width: 71pt; background-color: transparent;">Bank 3</td><td width="94" style="border-width: 1pt 0px; border-style: solid none; border-color: windowtext black; width: 71pt; background-color: transparent;">Bank4 </td><td width="94" style="border-width: 1pt 1pt 1pt 0px; border-style: solid solid solid none; border-color: windowtext windowtext windowtext black; width: 71pt; background-color: transparent;">Bank 4</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80580000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80780000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80180000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80380000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80500000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80700000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80100000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80300000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80480000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80680000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80080000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80280000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80400000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80600000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80000000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">X555 / XAAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80200000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80580000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80780000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80180000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80380000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80500000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80700000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80100000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80300000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80480000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80680000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80080000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80280000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80400000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80600000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80000000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">5X55 / AXAA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80200000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80580000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80780000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80180000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80380000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80500000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80700000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80100000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80300000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80480000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80680000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80080000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80280000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80400000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80600000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80000000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">55X5 / AAXA</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80200000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80580000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80780000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80180000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80380000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80500000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80700000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80100000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80300000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80480000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80680000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80080000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80280000</td></tr><tr height="20" style="height: 15pt;"><td height="20" style="border-width: 0px 0px 1pt 1pt; border-style: none none solid solid; border-color: black black windowtext windowtext; height: 15pt; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80400000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80600000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80000000</td><td style="border-width: 0px 0px 1pt; border-style: none none solid; border-color: black black windowtext; background-color: transparent;">555X / AAAX</td><td style="border-width: 0px 1pt 1pt 0px; border-style: none solid solid none; border-color: black windowtext windowtext black; background-color: transparent;">80200000</td></tr></tbody></table>

AW: Reparatur einem TM machine
 

Extra : Habe replaziert mit dem Siemens HYB514256A-70 chips..

AW: Reparatur einem TM machine
 

Hallo Ruud,

das Problem wird eher selten auftreten. Aber wenn, dann ist Deine Erläuterung natürlich echt hilfreich. Vielen Dank fürs Austüfteln und dass Du es hier eingestellt hast! Ebenso auch für Deine Erklärung zur Ansteuerung der Reeds in der TM in dem Problem-Thread von queegmeister. ;)

Grüße,
Andreas

AW: Reparatur einem TM machine
 

Stimmt, das problem war einem konsequenz dem zum niedrigen spanning auf dem PCB. Und das finden dem DRAM chips nicht angenehm. Aber jedoch interessant fur dem 'Drahti's' unter uns ;)

AW: Reparatur einem TM machine
 

Oder, interessant fur dem jungs die 8 MB auf ihrem platine mochten upgraden ... 48 diesem DRAM chips kosten etwa 100 Euro wenn mann gut sucht, und dann noch einige anstuerungs chips (etwas seltsamer) und voila von 2MB nach 8MB... :) ...
Aber werr hat die nerven so etwas zu probieren... Und dann noch einem tuning van 36 Mhz, nach 66 Mhz... Ich wurde es nicht rekommendieren...


Ich sehe dann das (elektrische) ENDE einige nicht mehr zu reparieren PAL chips...