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190
UF-5500 / 4500
11.2.19. LAN SECTION (UF-5500 only)
LAN Block Diagram
LAN Circuit signal waveform (Normal)
Transmitter waveform [TD+ (CN750 pin1), TD- (CN750 pin2) differential voltage] : Differential probe is used.
1. When network equipment is not connected (LAN cable is not connected);
Network communication failed.
(LAN circuit failure.:In case that LAN
settings,Connection cable and peripherals
have no problems)
Confirm the MAC Address by function
parameter 110.
Is MAC Address
displayed?
Is MAC Address Norma
(Is it the same as the
one on the label)
While network is
connected; Is LAN
Link/Activity LED (Green)
lighted?
Is the voltage of C752 and
C762 at both ends is normal
(3.3V) ?
Replace the IC750.
Replace the Main Board.
1
Replace the IC750.
1
1
YES
YES
YES
NO
NO
NO
NO
YES
IC750
Physical Layer
Transceiver
CN750
RJ45 Connector Module
Transformer
RJ45
X750
Crystal
(25MHz)
Ethernet
MAC
(Media
Access
Control)
IC300 Soc
LED
Summary of Contents for UF-4500
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 ...