Sinclair QL Service Manual

3.1.4 Insert a blank tape cartridge into MDV2 as requested.
3.2 Colour Test
3.2.1 After the message to load a blank cartridge into MDV2 is displayed, both screens should clear and then display the following colour test card.
NOTE: On each colour bar the word 'Test' should be written 8 times, once in each of the following colours from top to bottom Black - Blue - Red
- Magenta - Green - Cyan - Yellow - White
3.2.2 Check that the colours on the monitor are the same as those on the TV; check that the flashing text is satisfactory; type OK to proceed.
3.3 Sound Test
3.3.1 Check that the following is displayed:
3.3.2 After hearing two cycles of trimphone followed by the low pitch tone, type OK to continue.
3.4 Network Test
3.4.1 Check that the following is momentarily displayed:
Network test : OK
3.5 RS232C Loopback Test
3.5.1 Check that the following is displayed:
3.5.2 Connect the loopback cable in the QL's SER1 and SER2 sockets and press the space bar; the following message should be temporarily
displayed:

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)