NPL-1
6 - Troubleshooting
PAMS Technical Documentation
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Phone is dead
L260 towards SIM connector,
VBAT = 3.6 VDC
Yes
Failure in VBAT
line, check:
X101, X102
No
L261 towards C261,
L262 towards C262,
L265 towards C265
voltage = 3.6 VDC
Yes
Check:
L261,L262,L263,
C261,C262,C265
No
Pin 2 and 4 on S300 = 0 VDC
when powerkey pressed
Yes
Check:
S300, PWB
No
PURX = 1.8 VDC
on J402 or
V130 (Bluetooth module) pin44
~1 sec. after power key is
pressed
Yes
Check:
D200, PWB
No
Yes
VR3 ~2.78 VDC on C295
towards D200 (UEM)
Check:
D200,C295,PWB
No
26 MHz clock min 300
mVACpp on
R425
towards
D200 with regular probe Cin
~10-13 pF/10M
Check:
R425,C425
(Mjoellner)
Yes
No
Check:
D400 (UPP),D450 (FLASH)
Yes
Sleep clock on J404
~32.768 Hz, 1.8 Vpp
Check:
B200,C209,C210,
D200,PWB
Yes
No
Summary of Contents for 6310I - Cell Phone - GSM
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