Autoguider Slot Assignments

1.  SCSI Board
2.  CPU Board
3.  Peltier Control Board
4.  N2 Sensor card
5.  Level/Telemetry Card
6.  Sequencer Control Board
7.  Sequencer Memory Board
8.  -
9.  -
10. Fibre Board
11. -
12. A to D Board
13. -
14. CDS Board
15. -
16. -
17. Clock Board 0
18. Clock Board 1
19. -
20. -
21. -

SCSI Board

SW1-1    ON                SW2-1  ON                SW3    Set to F        SW4   Set to 4
SW1-2    ON                SW2-2  OFF
SW1-3    ON                SW2-3  OFF
SW1-4    ON                SW2-4  ON

F1  Check 1 Amp Fuse

RP2,3,4  220/330 R Terminators

Connector 1 - External 5V disk power
Pin 1 GND
Pin 2 +5V
Pin 3 GND

J2 BG,   J3 IACK

Mods:     U13:1 -> U13:19
               U12:1 -> U12:19
               U15:1 -> U15:19

CPU Board

J1  Bridged
J2  Open
J3  Pins 1 & 2 Bridged
J4  Position 4
J5  1 to 3, 7 to 14, 2 to 4, 8 to 10, 9 to 11
J6  1 to 3, 7 to 14, 2 to 4, 8 to 10, 9 to 11
J7  2 to 4, 3 to 5, 7 to 8, 9 to 11, 13 to 14
J8  2 to 4, 3 to 5, 7 to 8, 9 to 11, 13 to 14

Resistor 10K  U20:1 -> P2:2

Check if 50pF Caps are fitted C12,13,14,15 under U19

Check Battery voltage 2.4V

PAL = 2+2( 2 ROM, 2 RAM ) Checksum 1619

Peltier Control Board

Check there is a 10uF cap across R9 on heatsink.

N2 Sensor card

Link 1 Out
Link 2 Out

Switch 1  set to normal   ie reads the sensor

Level/Telemetry Card

Sequencer Control Board

Sequencer Memory Board

There are no options with this card.

Fibre Board

A to D Board

CDS Board

Clock Board 0

Clock Board 1

This page last updated : 16 Dec 98
awr@ing.iac.es