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Motorola MTR3000 User Manual

Motorola MTR3000
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4-28 Troubleshooting
Figure 4-13 Ethernet Troubleshooting Flow Chart (Controller)
Ethernet
Link LED
(green) solid
on/flashing?
Ethernet Option
Ethernet
Cable plug
in?
Ethernet is ok
Ethernet
RESET =
3.3V?
U3020M7
pin 4
Check/Plug in
Ethernet Cable
U3020M7
pin 3 =
1.875V?
U2208M5
pin 4,5,6,7 =
1.875V?
No
Replace U3020M7 Repl
ace U3020M7
No
Yes
See Clock & Reset
Troubleshooting Flow
Chart
No
Yes
Ethernet
Enable =
3.3V?
U3025M7
pin 4
U3025M7
pin 3 =
1.875V?
Series
Components
ok? See
Schematic
Replace U3025M7
Check/Replace
Series Component
Tx OMAP (U1000M1)
failure
Replace Controller
See Note 3
Y3038M7
pin
3 =
25MHz?
Replace Y3038M7
Activity on
J3006M7 pin
1,2,3,6
Replace J3006M7
Activity on
T3106M7
pin 1,3,6,8
Replace T3106M7
Activity on
U3005M7
pin 11,12
Ethernet-USB IC
(U3005M7) failure
Replace Controller
MAKO IC (U1402M1)
failure
Replace Controller
See Note 3
See Note 3
Yes
No
No
Yes
No No
Yes
Yes
Yes No
No
No
Yes
No
Yes
No
Yes
U3005M7
supply ok?
E3041M7 =
3.3V
Replace E3041M7
Yes
No
Yes
MAC/IP
programmed
?
Program MAC/IP
No
Yes
Yes

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Motorola MTR3000 Specifications

General IconGeneral
BrandMotorola
ModelMTR3000
CategoryAccessories
LanguageEnglish

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