Disassembly And Reassembly - Tait TP9100 Service Manual

Note
Table 18.2 Hirose accessory adapter – pins and signals
Signal name Pin Description
HIROSE MIC 1 External microphone input
(electret)
Dynamic microphones are not
supported.
HIROSE PWR 2 Accessory power
HIROSE SPKR+ 3 External speaker output
GND 4 Analog ground
HIROSE PTT 5 External press-to-talk input
HIROSE GPIO1 6 Accessory sense (internal
speaker disable)
a. Dependent on battery charge level.
Figure 18.1 Hirose accessory adapter – pinout and circuit diagram
ACC PWR
PL2
ACC GPIO1
PL10
ACC MIC
PL6
GND
PL1
ACC PTT
PL12
ACC SPKR+
PL11
Chassis GND
PL13
Accessory Connector PCB
Note
18.2

Disassembly and Reassembly

Disassembly and reassembly is the same as the TPA-AA-201 accessory
connector kit, refer to
318 TPA-AA-210 Hirose Accessory Adapter
If your accessory has a PTT switch in series with the microphone,
the accessory cannot be used. The PTT needs to be a separate
signal and must be made available at the connector separately; it
must not be multiplexed on any other signal
Signal type Signal level
Analog audio 9.5V
modulation at 1kHz,
DC-coupled
DC supply 3.3V nominal
Analog audio +6.5V
Ground –
Analog DC 0 to 2.5V, PTT=0
3V3 CMOS high = 1
low = 0
P10 HIROSE PWR
P13 HIROSE GPIO1
P1 HIROSE MIC
P2 GND
P3 HIROSE PTT
P7 HIROSE SPKR+
C1
4.7µF
Hirose Connector
Connecting the Hirose adapter to the radio alone does not mute
the internal speaker of the radio. The internal speaker is muted
when the accessory is connected to the Hirose adapter.
"Disassembly and Reassembly" on page
Output
impedance/
current
for 60% –
rms
100mA (max) –
a
To drive 16Ω
pp
–
–
1mA (max)
c
g
b
e
f
d
TP9100 Service Manual
© Tait Electronics Limited May 2005
Input
impedance
2.2kΩ
–
–
27kΩ
–
312.