1Ck Baseband Hw Subarea Troubleshooting; Flashing Troubleshooting - Nokia RH-47 Series Description

Nokia Customer Care

1CK Baseband HW Subarea Troubleshooting

Flashing troubleshooting

RH-47 has two memory components installed on the main PWB. The best indication of
which one is causing problems can be obtained by flashing the device. It has to be kept
in mind that the two flashes are interfaced with UPP WD2 ASIC that might itself have
some problems. The necessary steps are described below. Phoenix error messages during
flashing greatly help on defining what is wrong. To be able to flash the device, most
device BB area components must function properly.
Flashing
faults
The phone does
not set Flashbus
TXD line high
after startup
No
The phone does
not set the
flashbus TXD
line low after the
startup
No
Memory
faults page
2
Issue 1 05/04
Company Confidential
6 - Baseband Description and Troubleshooting
Yes
Yes
Measure BSI
pulse during
flash
programming
Is it ok?
Yes
Measure
FBUSTX line
during flash
programming is
it 1.8V?
Yes
Copyright © 2004 Nokia Corporation
Company Confidential
Check connections
Check BB voltages
Check clocks
Change UEM
No
Check BSI line
Check BSI line
Battery connector, flex,
battery connector,
C239, Z383, R384
C381, R193, C231, C232, R200
Change
UEM
No
Change UPP
WD2
RH-47
Page 27