Nokia 6820a Manuale Di Servizio
CCS Technical Documentation
Service tools
NSB-9
Issue 1 04/03
Nokia Corporation
Page 3
JVB-1 Docking Station and MJF-32 Adapter
The JVB-1 Docking Station has been designed for calibration and soft ware update use.
The MJF-32 Docking Station Adapter makes signal connections to the phone. JVB-1 and
MJF-32 are used as one unit.
The MJF-32 Docking Station Adapter makes signal connections to the phone. JVB-1 and
MJF-32 are used as one unit.
JVB-1 main electric functions include:
- adjustable VBATT calibration voltage, current measurement limit voltage "VCHAR", cur-
rent measurement calibration current "ICHAR"
rent measurement calibration current "ICHAR"
- adjustable ADC calibration voltage via BTEMP and BSI signal
- BTEMP and BSI calibration resistor
- signals from FBUS to the phone via parallel jig
- control via FBUS or USB
- Flash OK/FAIL indication
In calibration mode JVB-1 is powered by external power supply 11-16V DC. In flashing
power for the phone can be taken from FPS-8.
power for the phone can be taken from FPS-8.
MJF-32 main electric functions are:
- phone recognizing from BTEMP
- filters of FBUS signals
Product Code
JVB-1 Docking Station:
0770298
MJF-32 Docking Station Adapter:
0770528