PT500-2
Service Manual
29
28
GLED
P86
O
H
Green LED
29
RLED
P85
O
H
Red LED
30
NC
P84
O
31
TDIN
P83
I
TRFI
TONE data input
Alarm switch control
(
H
:
Controlled by
32
ALARMC
P82
O
L
Volume Switch
L
:
Emergency siren maximum volume)
33
DEV2
P81
O
-
Voice deviation adjustment 2
34
DEV1
P80
O
-
Voice deviation adjustment 1
35
NARROW
P60
O
H
12.5KHz
36
MIDDLE
P45
O
H
20KHz
37
TXD1
P66
O
-
Reserved
38
RXD1
P67
I
-
Reserved
39
MIC_MUTE
P65
O
L
MIC mute L: MIC mute
40
5TC
P64
O
H
Transmitting power control
41
EXTPTT
P63
I
L
External PTT switch input
42
SAVE
P31
O
H
Battery power control H
:
Power save
43
5RC
P30
O
H
Receiving power control
44
ENC0
P36
I
-
Channel selector input
45
ENC1
P32
I
-
Channel selector input
46
ENC2
P13
I
-
Channel selector input
47
ENC3
P12
I
-
Channel selector input
48
VOX
P11
I
AN9
VOX level input
49
BATT
P10
I
AN8
Battery voltage input
50
AFCO
P00
O
L
Audio Amplification Power
51
SPKSW
P01
O
L
Audio amplifier control
52
DCS_IN
P02
I
AN5
CTCSS/DCS input Recording level input
53
NC
P03
I
Summary of Contents for PT500-2
Page 1: ...PT500 2 Service Manual 1 PT500 2 Service Manual RED RADIO...
Page 12: ...PT500 2 Service Manual 12 Installing Removing the Chassis PCB...
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