196
UF-5500 / 4500
3.3V / 1.2V Troubleshooting Guide (2)
OK
NG
3.3V NG
1.2V NG
Is Fuse F800
correct?
OK
OK
END
NG
Check Q800, Q801, and IC300 on
the MAIN Board and replace the
parts having the problem.
Check L800, D800, Q802, Q804,
Q806, D805, L801, D803, Q803,
Q805, Q807, D806 and IC800 on
the MAIN Board and replace the
parts having the problem.
NG
Replace the
MAIN Board.
NG
OK
Is the problem
still occurred?
Replace the
MAIN Board.
END
OK
(1.2V NG)
Is the voltage of IC800
pin2 more than 1V?
Is the problem
still occurred?
A
3.3 V / 1.2 V Troubleshooting(2)
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...