Program Hash Ng - Oki OKIFAX4550 Maintenance Manual

4.4.8 PROGRAM HASH NG

8: PROGRAM HASH NG
Check FLS chip
solderling.
Good
Check appearance of
G4N board.
Good
Waveform of pins 12, 14,
43, 15 of FLS are similar to
Figure H.9
Yes
Re-loading G4N program
by PC-loading.
Bad
Replace G4N board.
41309401TH Rev.4
Program hash NG at flash memory
in G4N board.
Bad
Re-solderling
Bad
Modify bad point
No
Replace FLS and
re-loading G4N program
Good
Flash memory failure
568 /