Nokia NSE–6 Series Disassembly & Troubleshooting Instructions page 36

NSE–6
Disassembly & Troubleshooting Instructions
J117 SIMCLK_O
J118 SIMRST_O
J119 VCOBBA
J153 GND
J154 MBUS
J220 V5V
J221 5V
J222 DSPXF
J223 CCONTINT
J224 VSRM
J225 EXTSYSRE-
SETX
J226 EXTSYSRE-
SETX
J227 PurX
J228 SLEEPCLK
J229 SELF TEST
J230 GND
Page 36
0 0 0.8 V
1 2.0 2.85
0 0 0.5 V
1 2.8/4 3.2/5
.0 .2
2.7 2.85 V
0 0 V
0 0 0.8 V
1 2.0 2.85
4.8 5.2 V
2.8 3.2 V
0 0 0.8 V
1 2.0 2.85
0 0 0.8 V
1 2.0 2.85
5.2 5.5 V
0 0 0.8 V
1 2.0 2.85 V
0 0 0.8 V
1 2.0 2.85
0 0 0.8 V
1 2.0 2.85
0 0 0.8 V
1 2.0 2.85
0 0 0.8 V
1 2.0 2.85
0 0 V
Technical Documentation
Clock line to Sim (3.25MHz)
Sim reset line
Supply voltage for analog part of COBBA
Data I/O for external device and clock
signal from flash prommer to MAD2
Supply voltage for RF circuits. (VCP)
Supply voltage for flash programming
(Vpp). Vpp will be switched on only dur-
ing flash programming.
Test point for fault diagnostic.
Interrupt line from CCONT to MAD2.
Used for charger indication and RTC
alarm indication. If high, an interrupt is
generated.
Supply voltage for flash programming
regulator N201 from CCONT (N100)
Testpoint for fault diagnostic. If missing,
check power supply, PurX line and 13
MHz clock signal.
Testpoint for fault diagnostic. If missing,
check power supply, PurX line and 13
MHz clock signal.
Power up reset line from CCONT to
MAD.
If low, the bb circuits are in reset state.
32 kHz square wave clock from CCONT
to MAD.
Self test pin. If short–circuit is made be-
tween testpoint J229 and J230, the self
test will be executed.
Original 08/98
PAMS