Looking for schematic for old automotive ignition scope

[FGCOX1]

Have an older Craftsman/Penske Diagnostic Oscilloscope I am needing to work on.
I am searching for a schematic for it.
It is part number 161.21056
Sears considers it obsolete and nothing is available from their site.
If anyone knows a source or can point me in the right direction I would appreciate it!
Tnx Fred

 

[camerart]

Have an older Craftsman/Penske Diagnostic Oscilloscope I am needing to work on.
I am searching for a schematic for it.
It is part number 161.21056
Sears considers it obsolete and nothing is available from their site.
If anyone knows a source or can point me in the right direction I would appreciate it!
Tnx Fred

Hi F,

This may give you clues: **broken link removed**

C.