Display Faults - Nokia NPD-1 Series Troubleshooting - Bb

NPD-1
Troubleshooting — BB

Display faults

Display
faults
Are the UI-m odule
LED's turned on
when phone is
turned on or when
m aking a phone
call?
Display
foults 2
Page 38
No
Set phone in LOCAL m ode.
Use Phoenix "Message Sender"
Yes
and navegate down as follows:
DEV_HOST --> DEV_PC -->
OBJ_ROUTING_REQ -->
OBJ_PC --> UTID -->
LIGHT_CONTROL_RE Q -->
LIGHT_CONTROL_TARG ER_K
"LIGHT_STATE_BLINK " and
For AM S, m ake a call from the
Measure the UEM
Measure the voltage
Nokia Corporation
CCS Technical Documentation
Measure VBATT
No
voltage at C310
Is it OK?
Yes
PN_LIGHT -->
No
BD. Select
click "Send'
call box
signal @ R306
Is the signal OK?
No
Yes
No
Yes
@ LEDs
Is it ~ 3.8V?
Yes
Change LED's
Confidential
Check V BATT line.
Change UEM.
Change LM 2795
Issue 1 11/2002