Sleep Clock - Nokia NPC-1 Series Troubleshooting Instructions

NPC-1
Troubleshooting Instructions
Accessory detection
doesn't work normally
Check HeadInt
ad-value with Phoenix
(No accessory
connected)
- HeadInt ~0 *)
Fail
Check R151
and C160
Ok
Check bottom
connector
Ok
Change UEM

Sleep Clock

Missing/non-functional sleep clock causes
• entering sleep mode fails (higher current consumption -> shorter standby time).
The
• Baseband self tests cannot be run.
• Phone clock (on display) does not function properly.
Page 16
Figure 6: Fault tree, accessory detection
Use the xmic- switch on MJS-18
and check hookint ad-value.
Ok
Should go from high (~1000) to
Ok
ãNokia Corporation
PAMS Technical Documentation
low (~0)
Fail
Check R152,C161,L160
Ok
Check
R150,R201,C104,C105,
L162,L163
* On local or test m ode
Headint <400
Ok
Issue 1 10/01