Nautel NX15, Руководство пользователя

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NX15 to NX400 Transmitters - Replacing the Single-Board Computer (SBC)
Page 5
FM13016D Issue 1.0
Make the following changes to:
 Table 3.7: Connector Mating Information - NX400 Transmitter - Cabinet 1 (Control)
Connector Mate Comments
P30 A62A1U1CPU12V1 A62A1U1PWR2
P35 A62A1U1F_PANEL1 A62A1U1RST_BTN1
P36 A62A1UCOM3 Streaming Bus
W66P2 A62A1U1COM3 W66P2(P102)
W67P2 A62U1COM1 W67P2(A62A1U1COM2
All NX Models:
Section 4 (NX15 to NX200 and NX400), Section 5 (NX300) – Electrical Schematics

Insert the applicable replacement Electrical Schematic included in this document and
discard the old schematic:
Electrical Schematic SD-3 - Control/Monitor Stage in the NX Troubleshooting
Manual with the applicable schematic provided with this document.
2 REPLACEMENT PROCEDURE
Remove the SBC as follows:
NOTE
The replacement SBC assembly is static sensitive and can be damaged by electrostatic
discharge (ESD). Observe the static precautions described in the NX series technical
documentation.
(a) Open the front door of the NX transmitter to access the SBC.
(b) Remove the old SBC cover (Nautel part # 207-8292) using a 7-mm nut-driver/socket to
remove the seven (7) M4 hardware, which holds the SBC's protective cover to the front
door of the transmitter. Retain hardware. See Figure 1.
Figure 1: SBC Cover Removal
(c) Disconnect the power connector (P30) from the original SBC.