CONFIDENTIAL
21 (29)
NPE-4 6310/NPL-1 6310i Repair Hints
Customer Care Europe, Middle East & Africa Version 3.0 Approved
SCCE Training Group Date 22.04.2003
© NMP 2003
Checked by:
SCCE Training Group
Approved by:
SCCE
Hookswitch problems
Sometimes not possible to release “incoming call”
No voice dial possible
When the headset HDC-9P is connected to the bottom connector of NPE-4 and a call is coming in, it is often not possible
to release the call by pressing the hookswitch.
Often it is also not possible to initiate the voice call by pressing the hookswitch.
If one of the problems mentioned above occurs, changing the R175 can solve the problem.
Note: Do not check audio function of the phone with HDC-9P by using the JBV-1 docking station!
Only noise will be audible,I f testing in this way
Open the BB-shield and measure the resistor R175=100kΩ.
If R175=100kΩ, change the resistor to 15kΩ.
(see pictue below).
Note! Up to HW-ID 06.01 there is a 100kΩ resistor. From HW-ID 06.02 the value has changed to 15kΩ.
For more information also see SB 024 (NPE-4).
100kohm
15kohm