Test Cable - Shure T1 Service Manual

T
Pins
1
2
3
4
I
1
1 ( /
T G
4
phone jack,
J103)
R125
R130
O
n
(red)
LED
"Low Battery"
Mute
(D102)
switch
(S101)

Test Cable

25C1016 (CC)
S
The Gain pot (R125) is preset to its midpoint.
S
The 400 Hz high-pass and the 30 kHz low-pass filters on the
audio analyzer are activated.
1 (Connector J104)
P
3 4
L209
R217 Y201 C217
O
J101 –
Battery
terminals
J102 +
M
"Power On"
u
LED
t
(D101)
e
Power On/Off
switch (S102)
Figure 2. Pc Board: Key Parts Locations
Use a 50 Ω coaxial test cable to connect the pc board with various
test equipment (see Figure 2). To construct the 50 Ω test cable, see the
Wireless Service Equipment manual.
1. Unsolder the antenna lead from the pc board.
2. Attach the center conductor of the 50 Ω
solder pad, and the shield to ground.
3. Turn on the T1.
11
Shure T1 Body-Pack Transmitters
1
T1 (Tini " Q G " J201—solder side)
- ,
2
C215
O
TP4
TP3
T1 (Tini "
(green)
1: Ground
2: +5 V
3: Audio
4: 20 kΩ to ground (connected
to pin 3 in the microphone)
RG
Spectrum Analyzer
or
Frequency Counter
Ê Ê
Q G ") pins:
-
174 cable to the antenna
Service Procedures