KVH Industries TracVision M7 Guide

TracVision M7
1
Main PCB Replacement Instructions
TracVision®M7 Main PCB Replacement
Instructions
The following instructions explain how to replace the main PCB in a
TracVision M7.
Tools Required
TIP: The Flash Update Wizard is available to KVH-authorized
dealers through the KVH Partner Portal at www.kvh.com/
partners.
• #1 Phillips screwdriver
• #2 Phillips screwdriver
• 3/8" nut driver or wrench
• PC with the latest version of the Flash Update Wizard
installed
CAUTION
For your own safety, be sure to disconnect power from all wired
components before performing this procedure.
54-0477 Rev. C

TracVision M7
2
Main PCB Replacement Instructions
Step 1 - Replace the Main PCB
a. Using a #2 Phillips screwdriver, remove the six #10-32
screws securing the radome. Then remove the radome
and set it aside in a safe place.
Figure 1 Radome Removal/PCB Cover Screws
b. Using a #2 Phillips screwdriver, remove the four screws
securing the PCB cover at locations 1-4 (see Figure 1).
Using a 3/8" nut driver or wrench, remove the three
nuts and washers at locations 5-7.
c. Carefully position the cover to allow access to the PCB.
NOTE: Be sure to handle the cover carefully to avoid damaging or
dislodging PCB components.
NOTE: The PCB module is static-sensitive. Ensure that you take the
necessary grounding precautions before handling.
PCB Cover
Radome
Baseplate
1234
6
57
Inverter PCB
(not present on all systems)

TracVision M7
3
Main PCB Replacement Instructions
d. Examine the gyro connections to the PCB. If the gyro
wires are connected as shown in Figure 2 (an old
version PCB is currently installed), discard the jumper
cable connecting the small gyro PCB to the main PCB.
Later, you will connect the elevation and azimuth gyro
wires directly to the new PCB. The small gyro PCB is no
longer necessary.
Figure 2 Gyro Wires with Old PCB Version
e. Label the eight Molex connectors as shown in Figure 3.
This will prevent incorrect connections to the PCB later.
(If you are replacing an old version PCB, as identified in
the previous step, label the elevation and azimuth gyro
connectors as shown in Figure 2 then disconnect them
from the small gyro PCB.)
Figure 3 Molex Wire Labels/PCB Screws
Azimuth
Elevation
Remove,
Discard
Molex Label Key (for reference only):
= External Sensor - 7 pins
4
= Elevation Motor - 6 pins
3
= Azimuth Motor - 5 pins
2
= Power/Data - 10 pins
1= Azimuth Gyro - 3 pins 6
= To RF PCB - 8 pins
7
1
234
7
8
= Screws (x9)
Not Used
5 6
= Limit Switches - 8 pins
8
5= Elevation Gyro - 3 pins

TracVision M7
4
Main PCB Replacement Instructions
f. Disconnect the Molex connectors from the main PCB
(see Figure 3 on page 3).
g. Using a #1 Phillips screwdriver, remove the nine screws
securing the main PCB to the antenna frame
(see Figure 3 on page 3).
h. Remove the faulty main PCB.
i. Reverse this process to install the replacement main
PCB. (If you replaced an old version PCB, as identified
in Step 1d, be sure to connect the azimuth and elevation
wires to the new PCB as shown in Figure 4.) Then
reinstall the radome and reconnect power to the
TracVision system.
Figure 4 Gyro Connections from Old Version PCB to New Version PCB
NOTE: Be sure to remove the labels you applied to the wires in
Step 1e.
Small PCB
Not Used
Elevation Azimuth

TracVision M7
5
Main PCB Replacement Instructions
Step 2 - Configure the Antenna
The antenna now needs to be configured. The following instructions
explain how to configure the antenna. This procedure requires a PC
with the latest version of the KVH Flash Update Wizard installed.
a. Follow the instructions provided in the TracVision M7
User’s Guide to connect a PC to the TracVision system.
b. Double-click the KVH Flash Update Wizard shortcut on
your PC’s desktop to start the Flash Update Wizard.
TIP: You do not need to flash the antenna; you will simply type
commands in the Flash Update Wizard’s “TracVision Antenna
Comms” window. Be sure to click the “TracVision Antenna Comms”
window to select it before typing.
c. Type HALT then press Enter.
d. Type DEBUGON then press Enter.
e. Type =TVM7 then press Enter.
f. The antenna will restart. Wait one minute for system
startup.
g. Type HALT then press Enter.
h. Type DEBUGON then press Enter.
i. Type =LSTEST then press Enter
j. Type =CALGYRO then press Enter. If a “Scale factor
out of range - bad gyro” message appears, contact KVH
Technical Support.
k. The antenna will restart. Wait one minute for system
startup.
l. Type HALT then press Enter.

TracVision M7
6
Main PCB Replacement Instructions
m. Type the following GPS command then press Enter.
GPS,XX,D,YYY,Z
The antenna will use this data to speed up satellite acquisition.
You can find your latitude and longitude from one of the
following sources:
• GPS (Global Positioning System)
•Figure 5 on page 7 and Figure 6 on page 8 contain position
grids and tables, providing you with approximate latitude and
longitude values for North America and Europe.
n. Follow the instructions provided in the TracVision M7
User’s Guide to set up the TracVision system to track
your selected satellites.
o. Type ZAP then press Enter. The antenna will restart.
Wait one minute for system startup.
Field Description
XX Your latitude (0-90)
D S (South) or N (North)
YYY Your longitude (0-180)
Z E (East) or W (West)

TracVision M7
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Main PCB Replacement Instructions
Figure 5 Approximate North American Latitude and Longitude
Grid # Latitude Longitude
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
125° W
110° W
90° W
70° W
55° W
125° W
110° W
90° W
70° W
50° W
125° W
110° W
90° W
70° W
125° W
110° W
90° W
75° W
83° W
78° W
55° N
55° N
55° N
55° N
55° N
45° N
45° N
45° N
45° N
45° N
40° N
40° N
40° N
40° N
32° N
32° N
32° N
32° N
27° N
27° N

TracVision M7
8
Main PCB Replacement Instructions
Figure 6 Approximate European Latitude and Longitude
1234
11
7
6
5
8910
12 13 14
16
15
17 18 19 20
21 22 23 24
Grid # Latitude Longitude
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
7° W
7° E
22° E
45° E
7° W
7° E
22° E
7° W
7° E
22° E
40° E
7° W
7° E
22° E
7° W
7° E
7° W
7° E
22° E
37° E
7° W
7° E
22° E
37° E
67° N
67° N
67° N
65° N
63° N
63° N
63° N
57° N
57° N
57° N
55° N
53° N
53° N
50° N
47° N
47° N
43° N
43° N
43° N
43° N
36° N
36° N
36° N
36° N

TracVision M7
9
Main PCB Replacement Instructions
Step 3 - Check the RF PCB Software Version
You might need to update the software in the TracVision system’s RF
PCB, depending on its software version. The following instructions
explain how to check the currently installed RF PCB software version.
a. Type HALT then press Enter.
b. Type @VER then press Enter. The antenna’s RF PCB
software version will appear in the “TracVision
Antenna Comms” window. Be sure to record the
software version for later use.
c. Type ZAP then press Enter.
d. Click the Flash Update Wizard’s “View Release Notes”
button. Then click the “Flash File Log” link within the
Release Notes. Ensure that your RF PCB software
version matches the version listed for your TracVision
model.
e. If your software version matches the software version
listed in the Release Notes, the procedure is complete!
Be sure to return the old main PCB to KVH.
NOTE: Before returning the main PCB, be sure to obtain an RMA
number from KVH Technical Support and write the number clearly
on the outside of the box. Shipments received without an RMA
number will be returned to you at your expense.
If your software version does not match the software version
listed in the Release Notes, proceed to “Step 4 - Flash the RF
PCB (if required)” on page 10.

TracVision M7
10
Main PCB Replacement Instructions
Step 4 - Flash the RF PCB (if required)
The RF PCB now needs to be updated, or “flashed” to ensure
compatibility with the new main PCB. Flashing also allows the
antenna to use the most current satellite configuration data available.
Flashing instructions vary according to specific TracVision M7
configurations. Refer to the section appropriate for your specific
TracVision M7 configuration.
NOTE: Only flash the RF PCB if your software version does not match the
software version listed in the Release Notes (see “Step 3 - Check the RF
PCB Software Version” on page 9).
Switchplate Configuration
To flash the RF PCB, you will need a special DB9 (female) to RJ22
(male) flash cable. This cable is available from KVH
(KVH Part # 32-0728).
a. Connect the DB9 end of the flash cable to your PC.
b. Connect the RJ22 end of the flash cable to the
TracVision antenna’s RF port, located on the back of the
switchplate.
Figure 7 RF Port on Back of TracVision Switchplate
c. Follow the Flash Update Wizard’s onscreen
instructions to flash the RF board.
RF Port