M2259-00-200-812 Tait Orca Portable (TOP) Encryption 39
Copyright TEL Encrypted Radio Programming and Service Manual
4.8 Fitting the TOP Encryption Upgrade Flex
Note: Extreme care is critical when disassembling the radio, as failure to disassemble it
correctly may damage the seal and shield resulting in permanent damage. Disassemble
according to standard procedures, using the recommended tools. (See page 7).
Prepare Flex
1. Locate R9 and
remove
2. Locate R7 and fit
0Ohm chip (if not
already fitted)
Note: When fitting a
TVS-2 module
to an -07
version flex,
remove
components
R5 and R6.
Symptom Cause Action
Audio sounds squeaky or
croaky. (Midian modules
only)
Transmit and receive inversion
frequencies may be different.
Ensure both radios are
using same frequency. If
problem still exists,
reprogram module
Receiving radio occasionally
or frequently fails to decode
sync pulse. Audio is
unintelligible for several
seconds then comes right.
(Transcrypt modules only)
System delay may be set too short
Radio may have economy mode enabled
Reprogram module, or
consider if CTCSS can
be removed from some
parts of radio system.
Reprogram radio to
disable economy mode
Radio confidence and alert
tones are different, rapidly
varying tones.
This is normal when either the
transmitting or receiving radio creates an
alert tone or confidence tone during an
encrypted conversation.
No action - not a fault
Radio makes unusual,
distorted beeps at turn on.
Radio confidence tones may be set to
high. (Not all radios exhibit this)
Reprogram radio to set
confidence tones to low.
Module OTAR programming
does not work. (Transcrypt
modules only)
Module may have been corrupted or
damaged by high levels of radiated RF, eg
a portable on high power while the radio
has covers removed
Reprogram module.
Encryption indicator triangle
turns on and off randomly.
Both LK-3 links on TOP flex may be
connected, not just one.
Remove one LK-3 link.
(See Fitting Instructions)
P12
P18
P19
P2
P20
P21
P25
P4
P5P6
P7
P8
PL1
TP13
TS1
228-22592-07
2
1
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