8. Electronic System
2004-10
Technical Manual for sunrise RC, TW, TS, TC, BC, 6F No. T 137 302 Rev No. 1.1
8-11
8.9 TW
Board
This board is for controlling the tuneable wavelength filter wheel.
The TW Board is replaced using the following procedure:
1. Switch the instrument OFF.
2. Remove the main power cable from the socket.
3. Remove the instrument top cover.
4. Remove the Epack top cover.
5. Disconnect the Power Board on connector ST20.
6. Disconnect the lamp connector on ST15.
7. Disconnect the power on LED connector on ST23.
8. Disconnect the filter transport motor connector on ST5.
9. Disconnect the transport motor connector on ST6.
10. Disconnect the Power supply connector on ST18.
11. Disconnect the fan connector on ST22.
12. Carefully pull the Power board out of the instrument.
13. Disconnect the fiber bundle from the filter guide.
14. Remove the transport box carefully.
15. Remove EPAC Filter Guide.
16. Disconnect all cable connections on the TW Board and replace the board.
17. Replace all parts in reverse order.
Filter wheel home
position senor
Motor Filter Wheel
24 Volt power
connector
Motor driver for
filtr wheel
Option connector
to Mainboard
