User Guide

CC Technical Documentation Troubleshooting - BB
NPM-10 (3595)
Issue 2 03/2004 ©2004 Nokia Corporation Confidential Page 5
Figure 2: Phone is dead
Phone is dead
No
X101
VBAT - 3.6 VDC
Z261, C261, Z264, C264
Voltage = 3.6 VDC
S300
Pin 1 & 3 is HIGH when power
key is untouched
S300
Pin 1 & 3 is 0VDC(LOW) when
power key is pressed
J404
Sleep clock is
32.768 kHz, 1.8 Vpp
J402
PURX = 1.8VDC 1 sec. after
power key is pressed
C227
VR3 = 2.78 VDC
J425
26 MHz clock min.
300 mVACpp,
probe Cin=10 - 13 pF/10M
CHECK:
D450 (Flash).
Else defective D200*
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
CHECK:
X101
CHECK:
Z261, C261, Z264, C264
Yes
No
No
No
No
No
No
No
CHECK:
R217, C310
CHECK:
S300, PWB
CHECK:
B200, C209, C210, PWB.
Else defective D200*
CHECK:
PWB.
Else defective D200*
CHECK:
C227, PWB.
Else defective D200*
CHECK:
C227, PWB.
Else defective D200*