![](https://www.tumblr.com/widgets/share/tool?posttype=photo&canonicalUrl=https%3A%2F%2Fsymbolics.lisp.engineer%2Fkoken%2Ftags%2Frepair%2Fcontent%2Fdeflection-board-2%2F&content=https%3A%2F%2Fsymbolics.lisp.engineer%2Fkoken%2Fstorage%2Fcache%2Fimages%2F000%2F681%2FIMG-4249-Version-3%2Flarge.1466898608.jpg&caption=%3Cp%3E%3Cstrong%3E%3Ca href="https%3A%2F%2Fsymbolics.lisp.engineer%2Fkoken%2Ftags%2Frepair%2Fcontent%2Fdeflection-board-2%2F" title="Deflection Board - Problem?"%3EDeflection Board - Problem?%3C/a%3E%3C/strong%3E%3C/p%3E%3Cp%3EI%27m+not+sure+what+this+stuff+on+the+R31+is.%3C/p%3E){kind=link}
Deflection Board - Problem?
I'm not sure what this stuff on the R31 is.
![](https://www.tumblr.com/widgets/share/tool?posttype=photo&canonicalUrl=https%3A%2F%2Fsymbolics.lisp.engineer%2Fkoken%2Ftags%2Frepair%2Falbums%2Fsymbolics-3600-keyboard-repair%2F&content=https%3A%2F%2Fsymbolics.lisp.engineer%2Fkoken%2Fstorage%2Fcache%2Fimages%2F000%2F394%2FIMG-0723%2Flarge.1466745702.JPG&caption=%3Cp%3E%3Cstrong%3E%3Ca href="https%3A%2F%2Fsymbolics.lisp.engineer%2Fkoken%2Ftags%2Frepair%2Falbums%2Fsymbolics-3600-keyboard-repair%2F" title="Symbolics 3600 Keyboard Repair"%3ESymbolics 3600 Keyboard Repair%3C/a%3E%3C/strong%3E%3C/p%3E%3Cp%3EWhen+purchased%2C+the+Symbolics+3600+keyboard+had+five+keys+that+didn%27t+work+reliably.+These+pictures+document+the+before%2C+after%2C+and+repair.%3C/p%3E){kind=link}
Symbolics 3600 Keyboard Repair
When purchased, the Symbolics 3600 keyboard had five keys that didn't work reliably. These pictures document the before, after, and repair.
![](https://www.tumblr.com/widgets/share/tool?posttype=photo&canonicalUrl=https%3A%2F%2Fsymbolics.lisp.engineer%2Fkoken%2Ftags%2Frepair%2Fcontent%2Fxl1201-backplane-scsi-connector%2F&content=https%3A%2F%2Fsymbolics.lisp.engineer%2Fkoken%2Fstorage%2Fcache%2Fimages%2F000%2F481%2FIMG-4086%2Flarge.1466749000.jpg&caption=%3Cp%3E%3Cstrong%3E%3Ca href="https%3A%2F%2Fsymbolics.lisp.engineer%2Fkoken%2Ftags%2Frepair%2Fcontent%2Fxl1201-backplane-scsi-connector%2F" title="XL1201 Backplane SCSI Connector"%3EXL1201 Backplane SCSI Connector%3C/a%3E%3C/strong%3E%3C/p%3E%3Cp%3EThe+XL1201+Backplane%27s+SCSI+connector+has+one+broken+SCSI+pin+%28%231%2C+a+ground%29+and+a+broken+left+side.+It+seems+to+work+adequately+due+to+having+many+ground+pins.%3C/p%3E){kind=link}
XL1201 Backplane SCSI Connector
The XL1201 Backplane's SCSI connector has one broken SCSI pin (#1, a ground) and a broken left side. It seems to work adequately due to having many ground pins.