meta data for this page
  •  

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Next revision		Previous revision
drives:panasonic_ju475 [2023/01/18 10:02] – Created; added brochure flandrives:panasonic_ju475 [2023/01/18 10:20] (current) – [Panasonic JU-475] Added comment about the RDY jumper flan
Line 3: Line 3:
 {{ :drives:panasonic_ju-475-4apj.jpg?400|Image of controller board}} {{ :drives:panasonic_ju-475-4apj.jpg?400|Image of controller board}}
  
-The Applesauce works best if the BX jumper is in place. This allows the controller to set the disk speed (300 rpm/360 rpm), which is crucial for formatting disks correctly. BX is //not// usually set.+The Applesauce works best if the ''BX'' jumper is in place. This allows the controller to set the disk speed (300 rpm/360 rpm), which is crucial for writing and formatting double density disks correctly. ''BX'' does not usually come with a jumper.
  
 +By default, the JU-475-4 has the ''DC'' jumper set, but Applesauce may prefer having the ''RDY'' jumper set instead. (It still works fine with the ''DC'' jumper set, but may be faster with ''RDY''.) This is the preferred configuration in the Alpha Microsystems manual linked below.
  
 ===== References ===== ===== References =====
  
   * [[http://www.bitsavers.org/pdf/panasonic/floppy/brochures/Panasonic_JU-455_JU-475_Brochure_Mar91.pdf|Brochure for JU-475]]: contains detailed specs, but no jumper settings   * [[http://www.bitsavers.org/pdf/panasonic/floppy/brochures/Panasonic_JU-455_JU-475_Brochure_Mar91.pdf|Brochure for JU-475]]: contains detailed specs, but no jumper settings
-  * [[https://www.vogons.org/download/file.php?id=134573&mode=view|Jumper descriptions]]: List of Jumpers for JU-475-4+  * [[https://bitsavers.org/pdf/panasonic/floppy/JU-4x5/MSD891122000_JU-475-4_Service_Man.pdf|JU-475-4 Service Manual]]: complete service manual 
 +  * [[http://www.bitsavers.org/pdf/panasonic/floppy/Panasonic_5.25-jumpers.pdf|Panasonic 5.25 jumpers]]: List of jumpers for many models of Panasonic 5.25" drives. The JU-475-4 is on pages 3-15 and 3-16. 
 +  * [[http://jope.fi/drives/40200A03.pdf|Alpha Microsystems Diskette Configuration Guide]]: List of jumpers for many models of 5.25" drives. The JU-475-4 is on page 11.