Service Manual Part 1

  +8+
  
+8/8- 9&)
The mode or status of the radio is indicated by the behaviour of:
• the monitor LEDs (ML1 and ML2) on the top side of the logic PCB
• the radio control head LEDs.
Unless otherwise stated, the two monitor LEDs behave as in normal operation:
• ML2 is off
• ML1 flashes at a rate of 1Hz to indicate watchdog timer ‘kick’ activity
• In normal trunked radio mode, ML2 flashes at a rate of several Hertz. This indicates
control channel hunt or codeword reception on a control channel.
A value in brackets { } with a mode/status description indicates that the radio sends an
error message via the serial port upon engaging that mode/status.
This table identifies display states for trunked radios, with non-trunked models for
comparison.
Mode/State T2010/T2015 T2020 T2030/T2035 T2040
CONFIG error
Monitor LEDs
flashing together.
Display shows
“CONF-ERR”
Monitor LEDs
flashing together.
Top & bottom row
LEDs flashing. C1
LED on (if fitted)
Monitor LEDs
flashing together.
Display shows
“CONF-ERR”
CONFIG register
programmed
Display shows
“CONF-PGM”
Display undefined Display shows
“CONF-PGM”
ROM or RAM test
failure
CTCSS output tog-
gling. Display
undefined
Tone output tog-
gling. Display
undefined
Tone output tog-
gling. LEDs unde-
fined
Tone output tog-
gling. Display
undefined
ESN checksum error
{X31}
(go to program
mode)
As for program
mode + CLR LED
flashing. T2035: dis-
play shows “-U1”
Display shows
“ESN-ERR”
Database checksum
error {X32}
(go to program
mode)
As for program
mode.
2010: all channel
LEDs on
2015: display shows
“00”
Display shows
“-PROG-”
Top row LEDs on
As for program
mode + DESP LED
flashing.
T2035: display
shows “-U2”
Display shows
“-DATA-ERR-”
Top row LEDs on.
System error
{Enn}
Monitor LEDs
alternately flashing
“-ERROR nn” in
display (nn = error
mumber)
Monitor LEDs &
top row LEDs flash-
ing.
2 digit BCD error
number on bottom
rows.
T2035: display
flashes error
number
Monitor LEDs
alternately flashing.
“ERROR nn” in dis-
play (nn = error
mumber)
MOBD link left in &
CONFIG register OK
{X06}
Display error
shows
“MODB-ERR”
Top & bottom row
LEDs flashing + C2
LED on (if fitted)
Display shows
“MODB-ERR”
Logon with test link
in
{X07}
Top & bottom row
LEDs flashing + C3
LED on (if fitted)
Display shows
“TLINK-ERR”
Key/LED test failure
{X04}
LED flashing
shows error - all
LEDs to right &
below on