Motorola MSF 5000 Instruction Manual page 235

MSF
5000
Instruction Manual
Appendix
B
Error Codes
Audio Error Codes
Table B-2
Audio Error Codes (Continued)
Error
Description
Probable
Cause
Corrective Action
A23
TRC
encoder-to-line
4
path failure The following circuits on
the
TTRC
Replace
TTRC.
may
be
faulty:
©
TRC
encoder-to-line
4
path.
¢
TRC
encoder.
A24
TRC
encoder-to-line
2
path failure
The
following
circuits on the
TTRC
Replace
TTRC.
(STAC
filter path)
may
be
faulty:
¢
TRC
encoder-to-line
2
path.
¢
TRC
encoder.
¢
STAC
filter.
A25 Bad line
2 gate (no mute)
Line
2
gate (no mute) on the
TTRC.
Replace
TTRC.
A26
TRC
encoder-to-line
4
path failure or The following circuits on
the
TTRC
Perform
the
alignment procedure,
line
4
EEPOT
failure
may
be
faulty:
refer to
Chapter
4
-
Alignment. If
failure still occurs, replace
TTRC.
¢
EEPOT
d
(line
4
output level)
adjusted incorrectly.
*
TRC
encoder-to-line
4
path.
A27
Bad line
4
gate (no mute)
Line
4
gate (no mute).
Replace
TTRC.
A28 STAC
encoder failure or
STAC
The following circuits
on the
TTRC
Perform the alignment procedure,
EEPOT
failure
may
be
faulty:
refer to
Chapter
4
-
Alignment. If
failure still occurs, replace
TTRC.
¢
EEPOT
8, 9,
A
adjusted incorrectly.
¢
STAC
encoder failure.
A29
STAC
encoder-to-line
2
path failure The following circuits
on the
TTRC
Perform the alignment procedure,
or line
2
EEPOT
failure
may
be
faulty:
refer to
Chapter
4
-
Alignment. If
¢
EEPOT
C
(line
2
output level)
failure still occurs, replace
TTRC.
adjusted incorrectly.
TTRC
hardware
/
firmware
slightly
¢
STAC
encoder-to-line
2
path
incompatible.
failure.
A2A
ALC
audio circuitry failure
ALC
audio circuit.
Replace
TTRC
A2b Function
tone decode
circuitry Replace
TTRC
failure
A2C
Guard tone decode circuitry failure
Replace
TTRC
A2d Wireline activity circuitry failure
Replace
TTRC
A2E
ALC
audio-to-transmit audio line
4
The following circuits on
the
TTRC
Perform the alignment procedure,
path failure or transmit audio level
may
be
faulty:
refer to
Chapter
4
-
Alignment. If
EEPOT failure
failure still occurs, replace
TTRC.
¢
EEPOT
7
(transmit audio level)
adjusted incorrectly.
¢
ALC
audio to
transmit audio line
4
path.
A2F
ALC
audio-to-transmit audio line
2
The following circuits on
the
TTRC
Perform
the
alignment procedure,
ath
failure
or
transmit audio level
may be faulty: refer to
Chapter
4
-
Alignment. If
EEPOT
failure
failure still occurs, replace
TTRC.
¢
EEPOT
7
(transmit audio level)
adjusted incorrectly.
¢
ALC
audio
to
transmit audio line
2
path.
68P81092E09
3/14/94
B-13
MSF
5000
Instruction Manual
Appendix
B
Error Codes
Audio Error Codes
Table B-2
Audio Error Codes (Continued)
Error
Description
Probable
Cause
Corrective Action
A23
TRC
encoder-to-line
4
path failure The following circuits on
the
TTRC
Replace
TTRC.
may
be
faulty:
©
TRC
encoder-to-line
4
path.
¢
TRC
encoder.
A24
TRC
encoder-to-line
2
path failure
The
following
circuits on the
TTRC
Replace
TTRC.
(STAC
filter path)
may
be
faulty:
¢
TRC
encoder-to-line
2
path.
¢
TRC
encoder.
¢
STAC
filter.
A25 Bad line
2 gate (no mute)
Line
2
gate (no mute) on the
TTRC.
Replace
TTRC.
A26
TRC
encoder-to-line
4
path failure or The following circuits on
the
TTRC
Perform
the
alignment procedure,
line
4
EEPOT
failure
may
be
faulty:
refer to
Chapter
4
-
Alignment. If
failure still occurs, replace
TTRC.
¢
EEPOT
d
(line
4
output level)
adjusted incorrectly.
*
TRC
encoder-to-line
4
path.
A27
Bad line
4
gate (no mute)
Line
4
gate (no mute).
Replace
TTRC.
A28 STAC
encoder failure or
STAC
The following circuits
on the
TTRC
Perform the alignment procedure,
EEPOT
failure
may
be
faulty:
refer to
Chapter
4
-
Alignment. If
failure still occurs, replace
TTRC.
¢
EEPOT
8, 9,
A
adjusted incorrectly.
¢
STAC
encoder failure.
A29
STAC
encoder-to-line
2
path failure The following circuits
on the
TTRC
Perform the alignment procedure,
or line
2
EEPOT
failure
may
be
faulty:
refer to
Chapter
4
-
Alignment. If
¢
EEPOT
C
(line
2
output level)
failure still occurs, replace
TTRC.
adjusted incorrectly.
TTRC
hardware
/
firmware
slightly
¢
STAC
encoder-to-line
2
path
incompatible.
failure.
A2A
ALC
audio circuitry failure
ALC
audio circuit.
Replace
TTRC
A2b Function
tone decode
circuitry Replace
TTRC
failure
A2C
Guard tone decode circuitry failure
Replace
TTRC
A2d Wireline activity circuitry failure
Replace
TTRC
A2E
ALC
audio-to-transmit audio line
4
The following circuits on
the
TTRC
Perform the alignment procedure,
path failure or transmit audio level
may
be
faulty:
refer to
Chapter
4
-
Alignment. If
EEPOT failure
failure still occurs, replace
TTRC.
¢
EEPOT
7
(transmit audio level)
adjusted incorrectly.
¢
ALC
audio to
transmit audio line
4
path.
A2F
ALC
audio-to-transmit audio line
2
The following circuits on
the
TTRC
Perform
the
alignment procedure,
ath
failure
or
transmit audio level
may be faulty: refer to
Chapter
4
-
Alignment. If
EEPOT
failure
failure still occurs, replace
TTRC.
¢
EEPOT
7
(transmit audio level)
adjusted incorrectly.
¢
ALC
audio
to
transmit audio line
2
path.
68P81092E09
3/14/94
B-13