Avid Technology S6L Control Surface User manual

S6L Control Surface: Replacing the AVB Board
9329-66070-00 REV B 1
S6L Control Surface: Replacing the AVB Board
This document provides instructions for replacing the AVB board in the S6L Control Surface.
Before you Begin
Make sure to do all the following items before beginning the procedure.
1Make sure you have assembled all Required Tools and Items.
2Put on your anti-static wrist band and configure according to its instructions.
3Shut down your system, and disconnect any cables connected to your S6L control surface.
4Make sure your work area is clear of any debris.
Required Tools and Items
• 1x 2.5mm Hex driver
• 1x #2 Phillips screwdriver (for S6L-16C only, 12-inch magnetic-tip #2 Phillips recommended)
• Anti-Static wrist strap (not included)
• S6L-24C and 16C Only: 5 mm nut driver or open end wrench
• S6L-24C Only: 1x 9/32 nut driver
• Small cups or other containers to hold and organize the different types of fasteners as you remove them from the unit
• S6L-24C and 16C Only: Large towel or similar on which to set the Top Cover
• Table or other work surface strong enough to support the S6L control surface while allowing access to the back. For S6L-16C,
make sure the table provides at least 30 cm (+/- 12 inches) at the back of the control surface to set the PSU.
• USB keyboard and mouse
• Recommended for labeling cables: Camera (your phone or other) to document cable connections, or a pen and lightweight
tape to label cables as you disconnect them
What’s Included
• 1x Replacement AVB board assembly
Throughout this procedure, keep the removed screws organized to simplify re-assembly.
Figure 1. AVB board assembly

S6L Control Surface: Replacing the AVB Board 2
1. Prepare the S6L Control Surface
Prepare the S6L control surface by removing the back cover (all models) and disconnecting Light cables (S6L-24C and 16C only)
as explained in the following sections.
Remove the S6L Back Cover
The steps required to remove the back cover vary depending on the model of S6L control surface.
S6L-48D, 32D, and 24D
To remove the Back Cover from S6L-48D, 32D, or 24D:
1Using a 2.5mm Hex driver, remove the fasteners that secure the back cover to the S6L chassis and set the screws aside.
• S6L-48D uses 12 fasteners
• S6L-32D uses 10 fasteners
• S6L-24D uses 8 fasteners
2After removing the fasteners try sliding the back cover off the chassis by pushing it down with your hands and simultaneously
pulling the cover away from the chassis.
If the cover does not slide freely, try inserting a small flathead screwdriver along its upper edge as shown in Figure 2 and try to
work one side free and then the other.
3Slide the panel away from the control surface, and set the panel aside.
4Proceed to 2. Remove the SBC Tray.
Figure 2. Removing the S6L back cover
Fasteners:
Tool:
M4x8mm BHCS
2.5mm Hex driver

S6L Control Surface: Replacing the AVB Board 3
S6L-24C and 16C
To remove the covers from S6L-24C or 16C:
1Using a 2.5 mm Hex driver, loosen or remove both the right and left End Caps by loosening the 7 fasteners securing the caps to
the chassis.
At minimum, one End Cap needs to be loosened enough to let you remove the top cover later in these instructions. If you remove
either (or both) of the End Caps completely, carefully disconnect the LED power cable before moving the cap away from the
chassis.
2Using a 2.5mm Hex driver, remove the fasteners that secure the back edge of the back cover to the S6L chassis and set the screws
aside.
• S6L-24C uses 8 fasteners
• S6L-16C uses 6 fasteners
3After removing the fasteners try sliding the back cover off the chassis by pushing it down with your hands and simultaneously
pulling the cover away from the chassis.
4Slide the panel away from the control surface, and set the panel aside.
Figure 3. End Cap fasteners
Figure 4. Back Cover fasteners on S6L-24C (above) and S6L-16C (below)
Fasteners:
Tool:
M4x8mm BHCS
2.5mm Hex driver
Fasteners:
Tool:
M4x8mm BHCS
2.5mm Hex driver

S6L Control Surface: Replacing the AVB Board 4
5Using a 2.5mm Hex driver, remove the fasteners that secure the top cover to the control surface.
• S6L-24C and 16C both use 4 fasteners
6Set a large towel or similar across the upper modules of the control surface (CKM, MTS, MLM) to protect them.
7Carefully lift the top cover off the chassis and set it face down on the towel you placed on the surface, being careful to not stretch
or stress the cables connected to the light sockets.
8Proceed to Disconnect Light Cables.
Figure 5. Top cover fasteners on S6L-24C (above, with End Cap loosened) and S6L-16C (below, showing End Caps removed)
Fasteners:
Tool:
M4x8mm BHCS
2.5mm Hex driver

S6L Control Surface: Replacing the AVB Board 5
Disconnect Light Cables
(S6L-24C and 16C Only)
Before removing the SBC tray you must label and disconnect the two Light cables connected to the Top Panel.
To disconnect the Light cables:
1Do the following:
• On S6L-24C disconnect the cables at the connectors shown below.
• On S6L-16C, disconnect the cables at the connectors shown below.
2Proceed to 2. Remove the SBC Tray.
Light cables (rear view of S6L-26C shown)
Light cables (front view of S6L-16C shown)
LR

S6L Control Surface: Replacing the AVB Board 6
2. Remove the SBC Tray
The SBC Tray must be removed from the chassis before replacing the AVB board assembly or any of the I/O boards.
To remove the SBC Tray:
1If present, remove the black rubber stopper from the purple plastic shroud, and set it aside. This stopper was present on early S6L
control surfaces, and must be removed to access one of the captive screws that secures the SBC Tray to the chassis. It does not
need to be re-installed (you can discard it if desired).
2With the stopper removed, use a #2 Phillips screwdriver to loosen the captive screw below the stopper hole.
3Using a #2 Phillips screwdriver, remove the two fasteners securing the top edge of the purple shroud to the top of the chassis.
Figure 6. Shroud with stopper removed, showing captive screw below
Figure 7. Loosening the captive screw below the shroud
Figure 8. Fasteners to remove from the top of the shroud

S6L Control Surface: Replacing the AVB Board 7
424C Only: On some S6L-24C control surfaces the LVDS cable needs to be freed from the tray and disconnected before the tray
can be removed. If your 24C has a short LVDS cable, do the following.
• Using a 9/32 nut driver, remove the nut securing the LVDS cable to the tray then remove the cable clamp from its bolt.
• Carefully unplug the LVDS cable from the SBC. Use your finger of fingernail (or a small tool if the connection is too tight)
to disconnect the plug on the end of the cable from the connector on the board; do not pull on the wires.
5Locate the captive screws securing the SBC Tray to the chassis (these are in addition to the captive screw under the shroud that
you loosened earlier).
• S6L-48D, 32D, 24D, and 24C have four captive screws to loosen, shown below:
• S6L-16C has two captive screws to loosen (at the far left and far right in the image, above).
Figure 9. Bolt for LVDS cable
Figure 10. LVDS cable connection to SBC
Figure 11. Fasteners securing the SBC Tray to the chassis on S6L-48D, 32D, 24D, and 24C

S6L Control Surface: Replacing the AVB Board 8
6Using a #2 Phillips screwdriver, loosen the captive screws.
7If cables in your unit are bound with a cable tie similar to that shown below, cut the cable tie (this will allow the SBC Tray to
be removed).
8(S6L-16C Only) Move the PSU out of the way to be able to remove the SBC tray by doing the following:
• Using a 12-inch magnetic tip #2 Phillips screwdriver, remove the two fasteners that secure the lower back of the PSU to the
bottom of the control surface chassis (between the lower back of the PSU and the chassis interior wall).
• Using a 2.5mm Hex driver, stand at the back of the control surface and remove the four fasteners that secure the PSU Bay to
the back of the S6L chassis.
Figure 12. Loosening one of the captive screws
Figure 13. Cable tie
Figure 14. One of the two inner screws that secure the PSU to the bottom of the control surface chassis
Figure 15. PSU fasteners to remove
PSU
Chassis interior wall

S6L Control Surface: Replacing the AVB Board 9
• From inside the chassis, push the PSU assembly out far enough to be able to grab the flanges then carefully pull the PSU as-
sembly almost all the way out of the chassis (you do not need to remove it). Use a block or similar to support the PSU assem-
bly.
In the next step you will lift the Tray out of the chassis and hang it off the back edge of the console chassis. You should not need
to disconnect any cables before lifting the Tray out (other than S6L-24C LVDS as described previously), but you may need to guide
one or more cables away to allow the Tray to be lifted out of the chassis. If you find you do need more slack, note and/or label and
then disconnect any cable that isn't long enough to allow the Tray to be lifted out of the chassis.
9Being very careful to not stretch any cables, use two hands to lift the tray out of the chassis. Tilt the Tray as needed to clear the
chassis, and make sure no cables are caught or stretched.
10 Align the edge of the Tray with the edge of the chassis and hook the Tray on the edge as shown in Figure 17 so that the Tray
hangs off the chassis.
Figure 16. Lifting the Tray out of the chassis
Figure 17. SBC Tray hung off the back edge of the chassis

S6L Control Surface: Replacing the AVB Board 10
11 Do the following for better access to the AVB board assembly:
• Being careful not to stretch or strain any cables or connectors, slide the SBC Tray to the left and guide its cables to the left so
they do not block access to the AVB board assembly.
• If any SBC cables are too short to let you position the SBC or its cables out of the way, photograph and/or label and then dis-
connect those cables (labeling the cables ensures you will be able to re-connect them to their correct ports after completing the
procedure).
S6L-48D, 32D, and 24D Proceed to 3. Remove the Old AVB Assembly.
S6L-24C and 16C Only Continue with the following instructions to remove the BaseBoard Lite.
Remove the BaseBoard Lite
(S6L-24C and 16C Only)
On S6L-24C and 16C you must remove the BaseBoard Lite before you can replace the AVB assembly.
To remove the BaseBoard Lite:
1Disconnect the Molex power cable from the BaseBoard Lite (see “1” in the figures below).
2If you did not disconnect the two light connectors at the top panel, disconnect them from the BaseBoard Lite now to simplify
removing the board.
• S6L-16C has additional cables that need to be disconnected, shown below. Photograph and/or label each cable to simplify
re-connecting them later.
Figure 18. Power cable (1) and 2x Light connectors in S6L-24C
Figure 19. Cables to disconnect from BaseBoard Lite in S6L-16C
1
1
7070-35118-00
(analog in) 7070-35119-00
(analog out 1/2) 7070-30552-00
(headphones) 7070-35117-00
(lights XLR)
7070-30633-00
(AVB)
Cable:

S6L Control Surface: Replacing the AVB Board 11
3Using a magnetic tip #2 Phillips screwdriver, remove the 7 fasteners that secure the BaseBoard Lite and set them aside.
4Carefully lift the BaseBoard Lite out of its location, angling it as needed. Do not move the board too far away from the chassis
until you disconnect the ribbon cable as explained in the next step.
5Holding the BaseBoard Lite close to the chassis with one hand, use your other hand to unlock the ZIF connector on theAVB as-
sembly that secures the ribbon cable coming from the back edge of the BaseBoard Lite (the cable in your system may look dif-
ferent that the one shown below).
• To unlock the ZIF connector, use your finger or fingernail to carefully pull the top-mounted tab up from its locked position
(down) to its unlocked position (up), then carefully pull the ribbon cable away from the connector.
6Set the BaseBoard Lite aside on a padded surface.
7Proceed to 3. Remove the Old AVB Assembly.
Figure 20. BaseBoard Lite fasteners
Figure 21. Disconnecting the ZIF connector

S6L Control Surface: Replacing the AVB Board 12
3. Remove the Old AVB Assembly
After hanging the SBC Tray on the chassis you are ready to disconnect and remove the old AVB board assembly.
To remove the old AVB assembly:
1Before disconnecting cables from the oldAVB assembly, take a photograph and/or label each cable to simplify connections after
installing the new board. After the new AVB assembly is installed it is crucial to reconnect cables correctly. The fastest way to
ensure this is to take a photo of the old unit while cables are still connected, making sure you can use it to identify which cable
goes to which port. Cable colors and locations vary on different control surfaces and may not match those shown in this guide.
2After photographing and/or labeling all cables and connectors, disconnect cables from the old AVB board (see Figure 22):
• 1x Ethernet cable that connects to the S6L switch (labeled A in Figure 22). Disconnect from the AVB assembly, only.
• 2x Ethernet cables from the half-length Network Daughter board (labeled Band Cin Figure 22). Disconnect both ends of both
cables and remove them from the chassis (set them aside to re-install after the new AVB assembly is installed).
• 3x multi-colored cables: 1x at the rear left of the AVB card (the cable labeled Din Figure 22 disconnects by releasing its tab
and pulling to the left), 1x cable (labeled EFigure 22, disconnects by lifting it up and out of its connector), and 1x cable la-
beled FFigure 22 (disconnects by releasing its tab and pulling to the left).
• The ZIF (zero insertion force) cable at the rear right of theAVB card (labeled Gin Figure 22). To release this cable, use your
finger or fingernail to carefully pull the top-mounted tab up from its locked position (down, to the left) to its unlocked position
(up), then carefully pull the ribbon cable away from the connector.
Figure 22. Example photo of the AVB assembly with cables connected
Figure 23. Releasing the catch on the larger ZIF cable (shown at left) and disconnecting the cable (shown at right)
The short jumper cable (labeled Jin Figure 22) can remain connected. After the old AVB assembly is removed from the chassis
you will transfer this cable to the new AVB assembly.
A
B
C
G
DE
H
E
F
J
CB

S6L Control Surface: Replacing the AVB Board 13
• The smaller ZIF cable at the front left of theAVB board (labeled Hin Figure 22), below the Network Daughter board. To re-
lease this cable, use your finger or fingernail to pull the top-mounted tab up from its locked position (down, to the right while
standing at the back of the unit) to its unlocked position (up). Carefully disconnect the ribbon cable from its connector.
3Using a #2 Phillips screwdriver, loosen the 4 captive screws in Figure 25 that secure the AVB assembly to the chassis.
4Carefully lift the oldAVB assembly out of the chassis. Lift the back first, slide the assembly towards the front of the console so
the faceplate clears the back of the chassis, then lift the AVB assembly up and out.
5Proceed to 4. Install the New AVB Board Assembly.
Figure 24. Side view of the catch on the smaller ZIF cable
Figure 25. Fasteners that secure the AVB board assembly to the chassis
Figure 26. Removing the disconnected AVB board assembly from the chassis

S6L Control Surface: Replacing the AVB Board 14
4. Install the New AVB Board Assembly
You are now ready to begin installing the new AVB board assembly.
To install the new AVB board assembly:
1Remove the new AVB board assembly from its packaging.
2Before installing the assembly transfer the short jumper cable (Jin the figure, below, and in Figure 22) from the old assembly
to the new one.
3S6L-24C and 16C Only: Using a 5 mm socket or open end wrench, remove the threaded standoffs from the oldAVB assembly
and install them on the new assembly. S6L-24C uses 4 standoffs, S6L-16C uses 3.
4Place newAVB assembly in position in the chassis, making sure to orient it correctly and to insert it fully so that its exterior Net-
work Ports (A–D) are seated correctly against the back wall of the chassis.
5Tighten the 4 captive screws that secure the AVB board assembly to the chassis.
6Reconnect all cables (refer to your photos and/or labels).
• Insert the smaller ZIF cable into its connector at the front left of theAVB board (labeled Hin Figure 22), below the Network
Daughter board. Insert the ribbon cable into its connector and then use your finger to push the top-mounted tab down into its
locked position. To ensure proper connection, gently pull on the ribbon cable and make sure it doesn’t slip or disconnect.
• Insert the larger ZIF cable into its connector at the rear right of theAVB card (labeledGin Figure 22). OlderAVB boards have
a vertical connector, while newerAVB cards have a right-angle connector. Insert the ribbon cable into its connector and then
use your finger to push the top-mounted tab down into its locked position (down, to the left).
• Reconnect the 3 multi-colored cables: 1x at that rear left of the AVB card (the cable labeled DFigure 22, 1x cable next to it
(labeled E in Figure 22), and 1x cable labeled FFigure 22.
• Reconnect the Ethernet cable from the S6L switch to its connector on the side of theAVB assembly (labeled A in Figure 22).
• Reinstall the two Ethernet cables to the half-length Network Daughter board (labeled Band Cin Figure 22). Be sure to re-
connect these cables to their correct ports as shown in Figure 22.
• If necessary, remove any labels you applied to the cables.
Figure 27. Jumper cable installed on the new AVB assembly
Figure 28. One of the standoffs to remove from the old assembly and install on the new assembly
J

S6L Control Surface: Replacing the AVB Board 15
7S6L-24C and 16C Only: Re-install the BaseBoard Lite by doing the following:
• Reconnect the ribbon cable(s) to the BaseBoard Lite.
• Place the BaseBoard Lite back into the chassis, making sure to align its mounting holes with the four standoffs.
• (16C Only): Reconnect the headphone, analog in, analog out, and light cables to the BaseBoard Lite.
• Secure the BaseBoard Lite by re-installing the seven fasteners you removed earlier.
8Lift the Tray off the edge of the chassis and carefully re-insert it into the chassis.
Angle it in as necessary. Use one hand to keep cables clear while using the other hand to angle the Tray in.
9Double-check that you have reconnected any SBC cables you might have disconnected to make room for the AVB assembly.
10 Make sure the Tray is fully seated in the chassis and that the tabs protruding up from the chassis align with and fit into their slots
in the bottom of the Tray.
11 Using a #2 Phillips screwdriver, secure the Tray to the chassis by tightening the captive screws you loosened earlier (including
the one accessible through the hole in the shroud).
12 Using a #2 Phillips screwdriver, re-install the two screws that secure the top of the shroud to the chassis.
13 S6L-16C Only: Carefully push the PSU assembly back into the chassis, re-install the two screws that secure it to the bottom of
the control surface chassis, then re-install the four fasteners that secure the assembly to the back panel.
14 Proceed to Pair the New AVB to the Control Surface.
Pair the New AVB to the Control Surface
To pair the new AVB card to the control surface:
1Enter Support Mode by holding down Control + Shift on the USB keyboard while typing SUPPORT.
2When the Support shortcuts are now enabled message appears on the MTS, tap OK.
3On the external screen, navigate to Options > Devices.
4Enable Config mode.
5While holding down the Control key on the USB keyboard, right-click (or touch and hold) on the S6L Conrol Surface icon and
choose Pair Console to AVB Card from the pop-up menu.
6Power-cycle the entire system once more.
7Proceed to 5. Complete the Installation.
Reminder: Make sure systems are not connected for IO Sharing while pairing with AVB.

S6L Control Surface: Replacing the AVB Board 16
5. Complete the Installation
After installing the new AVB board assembly, confirm installation then re-assemble the S6L control surface and pair the new AVB
with the control surface.
Confirm Installation
To confirm connections and installation:
1With the back cover and top panel (if any) still off, power up the system and allow all firmware updates to occur.
2Power-cycle the entire system.
3While the system powers back on, look to make sure the LED indicators on the newly installedAVB board and other boards are
lit.
• If the AVB board LEDs are not lit, shut down the system and check all cable connections, then power the system on again.
Re-assemble the S6L Control Surface
Re-assembly instructions differ for S6L-24C/16C, and other control surfaces. Refer to the section below appropriate for your con-
trol surface. For details and illustrations, refer to the earlier instructions for disassembly.
Re-assembling the S6L-24C and 16C Back Cover
To re-assemble the S6L-24C and 16C:
1Reconnect the light cables.
2Reinstall the top panel and secure it with the 4 fasteners you removed earlier.
3Reinstall the back cover and secure it with the fasteners you removed earlier.
4If you loosened or removed one or both End Caps, re-install them and tighten their fasteners. If you removed either or both End
Caps, be sure to re-connect the LED cable(s).

S6L Control Surface: Replacing the AVB Board 17
Re-assembling the S6L-48D, 32D, 24D Back Cover
To replace the S6L Back Cover:
1Making sure to orient the back cover correctly, slide the cover back into position on the control surface.
2Using a 2.5mm Hex driver, reinstall the fasteners to secure the back cover to the S6L chassis.
Your S6L control surface is now ready for use.
Figure 29. Replacing the S6L back cover
Fasteners:
Tool:
M4x8mm BHCS
2.5mm Hex driver