User Guide

Issue 1 12/04 COMPANY CONFIDENTIAL 61
Copyright © 2004 Nokia. All Rights Reserved.
RAE-6/RA-4
6 - Baseband Description and Troubleshooting Nokia Customer Care
■ Bluetooth troubleshooting
BT Check
Connection to
JBT9. OK?
Check BT clock path from
APE clock and reset
trobleshooting
Check Vreg (2.8V)
from capacitor
C6036. Is it OK?
No
Yes
BER <= 0.1%Yes No
repeat BER test.
OK?
No
Yes
No
Check BC02 Xtal_in from
R6043.
Frequency 12Mhz, swing 400-
900mV.
OK?
Yes
Check VDD_ANA
(1.8V) from
capacitor C6031.
Is it OK?
No
No
Check RF
components (L6032,
L6031, C6046 and
C6049.
Check regulator
N4200 (EM
troubleshooting)
Change BT ASIC
N6030
Repeat BER
test. OK?
BT OK
Yes
Check balun
T6030 and filter
Z6030.
Repeat BER test.
OK?
Yes
Yes
No
Yes