FREQUENTLY ENCOUNTERED PROBLEMS


1�  Formattin� th� � 1/4� dis� take� � lon� tim� (approximatel� �
10 minutes.  Can't write to the 5 1/4" disc.

Solution�  Us� har� sectore� discs�  Yo� ar� probabl� usin� sof� �
sectored�  Us� 1� har� sector� pe� trac� (identifie� b� 1� inde� �
hole� pe� revolution�  Identifie� b� revolvin� th� flopp� dis� �
on� revolutio� insid� it� jacket�  Eleve� inde� hole� wil� b� �
counted through the small hole in the disc.

2�  � pu� a� operatin� syste� o� th� har� disc� bu� whe� � boo� �
the hard disc I can't read the floppies (with the DJDMA).

Solution:  Move the jumpers on the DJDMA as follows:

P3-N� jumpe� (Han� i� o� on� pos� s� yo� don'� loos� th� slid� �
jumper).

J2-Mov� th� slid� jumpe� fro� th� cente� an� righ� pin� t� th� �
center and left pins.

3.  When I press reset, all I get is FFFF.  Why?

Switc� � o� th� CP� i� se� t� ON�  Tur� switc� � OF� t� boo� �
automatically�  Whe� yo� pres� reset� th� CP� doe� man� tes� an� �
initializatio� routines�  On� routin� check� fo� memor� i� th� �
syste� an� the� print� th� highes� addres� i� � 64� syste� tha� �
i� finds�  Tha� addres� i� � 64� syste� i� FFFF�  Afte� thi� �
appear� o� th� screen� yo� ar� no� i� CP� monitor�  Ther� ar� �
severa� thing� tha� ca� b� don� fro� th� monitor�  On� i� t� typ� �
� (fo� boot)�  Thi� wil� loa� i� an� the� ente� CP/M�  Typin� � �
fro� th� monito� (switc� � ON� give� th� sam� resul� a� pressin� �
reset and booting automatically (switch 6 OFF).