Sharp PG-F320W - Notevision WXGA DLP Projector, Service Manual

Page: 37 / 144

PG-F320W
5 – 9
Checking the LAN
LAN communication is disabled even though connecting the con-
trol PC with a LAN cable. The LINK LED (green) does not light
up.
YES
Are the connection of connecting cable and the settings of IP
address, sub-net address and default gateway correct? NO Check the connecting cable and LAN settings. If the LAN
settings are unknown, contact the network administrator.
If the network settings cannot be saved, replace IC8003
(EEPROM) as it may be defective.
YES
NOTE: When IC8003 (EEPROM) is replaced, the MAC address
returns to default. Refer to “Resetting after replacing
IC8003 (EEPROM)” to reset.
Are the network device (e.g. Hub) between the control PC and
cable normal? NO Repair defective parts in the network.
YES
When data is sent from the control PC, do pins (30) and (31) of
IC8201 (PHY receiver) receive signals? NO Check the peripheral circuit of J8201 (RJ-45 jack with built-in
transformer).
YES
Check the PHY receiver IC8201 and the peripheral circuits of the
microprocessor IC8001.