CBT36K Assembly Manual
Page
46
of 89
8. SOLDER CONNECTIONS, DRESS
THE WIRING, AND MOUNT RESISTORS:
8.1.
F
INAL
W
IRING
C
HECK
:
Important!
Using the full-size front-
panel foldout diagram found at the end of this
manual
or packed separately, carefully
compare your wiring to the foldout and check
for errors before proceeding to the to the
following steps.
8.2.
S
OLDER
L
EADS TO
M
ID
-B
ASS
D
RIVERS AND
T
WEETER
M
ODULES
:
The following steps indicate how to finish the driver
installation by showing how to solder each of the
connections to the mid-bass drivers and tweeter
modules.
8.2.1.
Solder all ND91 mid-bass driver
terminals:
Start at the top and work your way down the line
soldering all ND91 mid-bass terminals. Check each
connection to make sure all wires are securely
soldered, especially terminals with three wires
attached.
8.2.2. Prepare to Solder All Tweeter Module
Connections:
Start at the top tweeter module and work your way
down toward the bottom.
8.2.3.
Solder Insulated-Lead Connections
Attached to Tweeter Modules:
The next four photos indicate how to solder the
insulated leads, resistor leads and the U-jumpers
to the tweeter-module PC board.
8.2.3.1.
Soldering Insulated and Resistor
Leads:
Insulated leads require a little extra attention. First,
heat the PCB and apply some solder then lift the
lead about 1/8” and allow the solder to flow around
the exposed wire. This isn’t hard to do, but you
may find it easier to use one of the clips on the test
lead to help hold the wire in position so both hands
are free to handle soldering iron and solder.
8.2.3.2.
Watch Out for Cold-Soldered Joints!:
This image was shown earlier but repeated here
for convenience. Solder must get to the tinned
portion of the wire. Solder can build up around the
insulation and appear to be connected even
though no connection exists. This is a form of cold-
soldered joint.
8.2.3.3.
Solder All U-Jumpers Connecting PC
Boards:
Solder all 10 series jumpers on each front panel,
these are easy to forget.
