Sinclair QL Service Manual

APPENDIX B TO SECTION 4
USER HINTS
The following points may be of help in spotting 'non-faults' on QLs.
1. Please note that if you want the QL to tell you which version of ROM it has, you should enter 'PRINT VER$' and not 'PRINT VERS'.
2. If you try to run Abacus, Archive, Easel or Quill on microdrive 2 instead of microdrive 1, you get an error message, typically 'AT END 200 NOT
FOUND'.
3. When saving data on microdrive 2 while using Abacus, etc., remember to use a formatted cartridge in microdrive 2 otherwise you get the
message 'CANNOT OPEN FILE'.
4. If you have opened a data file when using Archive, remember to close it before removing the cartridge, otherwise future access may be
difficult.
5. If you press the SHIFT key at the same time as the space bar, nothing happens when you are using Super Basic.

Sinclair QL Specifications

General

Processor	Motorola 68008
Clock Speed	7.5 MHz
RAM	128 KB (expandable to 640 KB)
ROM	48 KB
Operating System	Sinclair QDOS
Release Year	1984
Storage	Microdrive tape loop
Graphics	256x256 pixels, 8 colors
Ports	RS-232, ROM cartridge
Sound	Beeper (internal speaker)