User Guide

CCS Technical Documentation System Module LG4 and Grip Module LS4
Issue 2 11/02 ¤Nokia Corporation Page 31
Flashing
SW download in service is impelemented by custom tools and SW, kindly refer to Service
Software Instructions and Service Tool section of the manual.
Connections to Baseband
NHL-2NA type flash programmer FPS-8 is connected to the baseband directly in Produc-
tion Tester, by using service cable and FLA-21 or Module jig to connect to test pads. With
assembled devices the testpads can be accessed by opening the grip with a special tool.
Figure 18: Flash programming connections
FPS-8 can also supply Vcc during flash programming i.e. service box’s or service battery’s
Vcc can be connected to FPS-8 by banana plugs but external power supply can be also
used during flash programming. shows how flash programming equipment is connected.
Note that Vcc connected to FPS-8/FLS-4S is preferred.
The flash programming interface uses following external signals:
1 FBUS RX (accessed from test pad pattern)
2 FBUS TX (accessed from test pad pattern)
3 MBUS (accessed from test pad pattern)
PC
FPS-8 /FLS-4S
Serial2(AXS-4)
(
FPS 8 ONLY)
LPT1
COM1
COM2
UPP_WD2
UEM
Flashing interface
= DCT4 Accessories
= Phone
ACF-8
FBUS_TX
FBUS_RX
MBUS
BSI
Gnd
Vpp
TXRX
MBUS
BSI
FBUS_TX
FBUS_RX
MBUS_TX
MBUS_RX
PurX
1.8V
2.78V
2.78V
Flash
Vpp
VPP
FBUS_RX
FBUS_TX MBUS
GND
Phone
service cable
V
cc
FBUS
Centronics
4k7