Agilent Technologies 1100 Series Service Manual page 148

3 Repairing the Pump
7 If you have to exchange other parts, also, continue with that work first.
8 On the new board check the switch setting of address switch S1, see Table
An incorrect switch setting (e.g., TEST/BOOT) may cause the pump to turn into a basic
NO TE
mode (yellow or red flashing status light). In such a case turn off the pump, re-set the
address switches, and turn on the pump again.
9 Install the new board and reconnect the connectors. Make sure that the
Make sure that P21 is not accidentally connected into the position of P16-P17 (possible on
CAU TI O N
revision A and B boards). This will damage the encoder of pump drive B when turned on.
10 Replace the connector screws.
Nut and
screws
Figure 23
11 Replace foam and top covers, see "Replacing the Top Cover and Foam" on
12 Reinstall the pump in the stack. Reconnect all cables. Turn on the nano
136
51 on page 219.
board is fitted correctly in the board recess holes at the rear panel.
Rear of Nano Pump
page 154.
pump. If the status indicator turns red, continue with the section "Entering
1100 Series Nano Pump Service Manual