Flash Programming Ok; Part 4 - Nokia NME-2A Series Troubleshooting Instructions

P.A.M.S.
Technical Documentation

Flash Programming OK; part 4

Check D251/FLASH
ADDRESS/DATA LINES
/no shortcircuits or
unconnected pins allowed
OK
Change D251
Original 08/97
4
D251/FLASH
/pin 11 +12 V during
programming?
YES
D250/MCU
/pin 64/RXD2 pulses
during programming?
YES
X100/pin 7
/TXD2 pulses during
programming?
YES
D251/FLASH
/pin 12/PWD +5 V
after power on?
YES
D251/FLASH
/pin 9/ROMSELX pulses
from +5 to 0 V after
power on?
YES
D251/FLASH
/pin 37/RSTROBEX pulses
from +5 to 0 V after
power on?
D251/FLASH
YES
/pin 38/WSTROBEX pulses
from +5 to 0 V after
power on?
NME–2A
Troubleshooting Instructions
Check X100/pin 14
NO
R271, L250, R264
R265, C264
NO
Check X100/pin 6
R252, R253, R255
C254
NO
Check D250/pin 63
R250, R251, C250
NO
Check D300
NO
Check D250 (D300)
NO
Check D250 (D300)
NO
Check D250 (D300)
Page 9