Shure T1 Body-Pack Transmitters
9
Service Procedures
25C1016 (CC)
Service Procedures
Reference Material
The Shure Wireless Systems: T Series User’s Guide provides a de-
scription, information on operation and troubleshooting, and technical
data.
Special Equipment
The Wireless Service Equipment manual covers the standard items
needed for servicing the transmitters. If you do not have the modified
SC4 receiver described there, you will need an appropriate receiver (usu-
ally T3 or T4) to verify that the transmitter is working properly.
System Operating Frequencies
Each transmitter circuit board is marked with a group letter (A, B, C,
or T) that identifies the range of frequencies on which the transmitter can
operate. Table 1 shows the Group Letter and its associated frequencies.
Note that this chart applies only to the T1 series.
Table 1
(90_8552F) Pc Board Groups
Group Frequency Range
A 169.000–183.975 MHz
B 184.000–198.975 MHz
C 199.000–215.975 MHz
T “AC,” “V,” & “W” frequencies
Used with pcb assembly 90_8552F
(pcb marking 34A8459F)
Table 2 provides information for identifying the system frequency.
The Crystal Letter Code, when used with the appropriate Shure model
number, identifies a specific operating frequency for both transmitters
and receivers. Note that, although a Crystal Letter Code always desig-
nates a specific frequency, it may be used with different Group Letters on
other products.
Group T: Beginning in July 1995, “V” and “W” frequencies, formerly
assigned to the “A” board, were reassigned to a newly designated “T”
board (see the “Audio Alignment” subsection in “Service Procedures”).
