208
UF-5500 / 4500
11.3.7. Information Codes: 459, 494, 495
CROSS REFERENCE:
START
END
Check the line connection
between the telephone jack on
the wall and the MAIN PCB.
Is communication with the
reference unit successful?
Yes
No
Yes
No
Does the problem still occur?
Replace the MAIN PCB.
No
1. Check the remote unit in
question.
(Remote unit is defective)
2. Refer to
Sect. Comunications.
If the telephone line frequently
disconnects at the beginning of
each communication, ask the
telephone company to check
the line.
Does the trouble occur
regardless of the remote unit?
END
Yes
Check the telephone line
condition.
Summary of Contents for UF-5500
Page 180: ...180 UF 5500 4500...
Page 248: ...248 UF 5500 4500 13 5 Test Chart 13 5 1 ITU T No 1 Test Chart...
Page 249: ...249 UF 5500 4500 13 5 2 ITU T No 2 Test Chart...
Page 281: ...281 UF 5500 4500 10 10 11 15 12 17 18 19 20 21 22 23 24 28 29 30 27 25 26 21 13 14 16 30...
Page 287: ...287 UF 5500 4500 130 131 132 133 134 135 136 137 138 139 140 141 PCB2 A UF 5500 only CN1...
Page 297: ...297 UF 5500 4500...
Page 305: ...305 UF 5500 4500...
Page 311: ...311 UF 5500 4500 501 502 503 504 506 507 505 508 509 511 510 514 513 512 P51 P53 P54 A51 P52...
Page 362: ...362 UF 5500 4500...