PT3600 Service Manual
6
Pin No.
I/O
Port Name
Function
11
I
DOWN KEY Down key
12
I
PTT KEY
PTT key, programming test point
13
O
3TC
Tx power control
14
I/TRCI
OA
2T/5T IN
TONE test input (reserved), programming
test point, connect to RDA1846 GPIO1
15
I
SQL
RDA1846 SQL test input (RDA GPIO6)
16
O
RDA PDN
RDA1846 power supply control
17
I
VOXIN
RDA1846 VOX test input (RDA GPIO7)
18
I/TRDI
OB1
CTCSS/CDCSS
INPUT
CTCSS/CDCSS input (TimerD input
capture)
，（
RDA GPIO0
）
19
O
SHIFT
Beat shift selection
20
O/TRD
IOD0
CTCSS/CDCSS
OUTPUT
CTCSS/CDCSS output
（
TimerD PWM
）
（
RDA GPIO0
）
21
O/TRD
IOC0
CFA
Frequency stability output (TimerD PWM)
22
O/TRD
IOB0
APC
Automatic power control output (TimerD
PWM)
23
I
RDA GPIO4 Connect to RDA1846 GPIO4
24 I/INT1 RDA
INT
RDA1846 interrupt signal detect
（
RDA
GPIO2
）
25
O
MAXAF
Max. audio frequency
26
I
RDA GPIO5 Connect to RDA1846 GPIO5
27
O
AFCO
Audio frequency amplifier power supply
28
O
3RC
Rx power supply control
29
O
UVSEL
UHF and VHF switch control
30
I
RDAOSC
RDA crystal frequency selection
31 O RDA
EN
RDA1846
enabling
control
32
O
RDA CLK
RDA1845 clock line
33
I/O
RDA DATA
RDA1845 data line
34 O
- -
35 O
- -
36 O
- -
37
O/TXD
1
TXD
RS-232C output (programming test point)
38
I/RXD
1
RXD
RS-232C input (programming test point)
39 O
- -
40 O
- -
41 O
- -
42 O
- -
43 O
- -
44 O
- -
45 O
- -
46
O
FlashClk
Flash IC clock
（
for FLASH IC and W588
）
47
I/O
FlashDio
Flash IC data input/output
48
O
FlashCs
Flash IC selection
49
O
FlashDo
Flash IC data output
50 I ENC0
Encoder
input
51 I ENC1
Encoder
input
52 I ENC2
Encoder
input
53 I ENC3
Encoder
input
54
O
GLED
Green LED control
55
O
RLED
Red LED control
56
O
SPKC
Speaker second level control switch
57
I/AN2
LOW BATT Low battery test input
58 O/DA0 BEEP
Alert tone/TONE output
（
and connect to
RDA GPIO1
）
59 I VSS/AVSS
MCU
（
GND
）
60 -
- -
61
I
VREF
A/D reference voltage
62
I
VCC
MCU power supply
63 -
- -
64 -
- -
Chapter 4 Function Description and
Parameter Setting
4.1 Main Functions
4.1.1 Programmable Buttons
Long Press Duration:
Amount of time that the radio-user is
required to press (and hold down) a button, for the press to be
interpreted by the radio as a long press. A short press is defined as
any button-press that is shorter than the duration.
The dealer can assign one of the following auxiliary functions
to the long press or short press of the programmable button 1 and
programmable button 2:
●
None: No function is assigned.
●
Monitor Momentary
Press and hold the preprogrammed Monitor Momentary button
to open squelch for monitoring the transmission on the channel
whether the CTCSS/DCS, audio squelch conditions match or not.
Release it to exit monitor mode. Press this button can also cancel
the current incoming call.
●
Monitor
Press the preprogrammed Monitor button to open squelch for
monitoring the transmission on the channel whether the
CTCSS/DCS, audio squelch conditions match or not or cancel the
current incoming call. Press it again to exit monitor mode.
●
Squelch Off Momentary
Press and hold the preprogrammed Squelch Off Momentary
button to open squelch momentarily, and release it to resume
normal operation. Press this button can also cancel the current
incoming call.
●
Squelch Off
Press the preprogrammed Squelch Off button to open squelch,
and press it again to resume normal operation. Press this button
can also cancel the current incoming call.
●
Channel Annunciation
Press the preprogrammed Channel Annunciation button, the
current channel number can be heard.
●
Scan
Press the preprogrammed Scan button to start scanning (the
scan list should be effective), press it again during the scanning to
stop scanning.
●
High/Low Power Switch
Press the preprogrammed High/Low Power Switch button to
switch the current channel power between high and low.
●
Battery Check
Press the preprogrammed Battery Check button, the current
battery power level can be heard. There are four levels in all.
