This router is possibly based on the WLR2454 board, which could be found in several other routers.
I have bought it from an hungarian auction portal in defected state.
The LAN, WAN leds are lighting, possibly due to the fail of the switch
IC.
I have a died TPLINK TL-340GD with the same switch, so I will change it.
I can access it via wireless fine.
Problem:
All LAN leds and WAN led is lighting. My board had a short in the 88E6060's generated 2,5V VDD.
If you have similar problem check the following:
Measure the resistance between the GND and the C479 + pin (polarized cap near the switch IC's corner).
If you measure ~short in both directions the 88E6060 is dead. If it good you should measure ~ 30 Ohms in both directions.
I have replaced the switch IC from an died TPLINK TL-340GD. Now the LAN is functioning, but the WAN is dead.
I don't know that it is the failture of the colis, or the new 88E6060's wan port is dead too.
Hardware:
CPU:
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Atheros AR2313A
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Flash
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29LV800BBTC 2MByte
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Ram:
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M12L6416 8 MByte
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Radio:
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Atheros AR2112A (802.11 b/g)
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Switch:
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Marwell 88E606
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Picture from the PCB:
Serial port:
Next to the antenna there is an unsoldered 12 pin connector.
The pinout: (12th pin is at the cutoff of the border)
GND
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GND
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?
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TX
|
?
|
?
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?
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?
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?
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RX
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+3,3 V
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+3,3 V
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I had not seen any interesting on the serial link. only on 9600 8n1 seen some normal traffic which is:
aaa
bbb
EZ
JTAG:
The second pinhead is possibly a JTAG connector. Possibly
MIPS EJTAG JTAG header pinout.
VCC
|
|
|
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GND
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pulled low
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GND
|
pulled low |
GND
|
|
GND
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pulled low
|
GND
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pulled low place R3 to wire it to somewhere
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