G3 Mode Communication Ng - Oki OKIFAX4550 Maintenance Manual

4.4.12 G3 mode communication NG

12: G3 mode
communication NG
Able to communicate
at G4 mode
OK
During protocol signal
sending or receiving, sine
wave or modulated sine wave
output is provided between
pin 44 and pin 46 of CN1 and
between pin 48 and pin 46
of CN1.
Yes
Waveform of pins 11, 15,
13 of IC4 are similar to
Figure H.14(1/2).
Yes
Waveform of pins 11, 15,
12 of IC4 are similar to
Figure H.14(2/2).
Yes
Replace G4N board.
41309401TH Rev.4
NG
Check No. 11 item
No
Check 46F/R46 board
No
Replace IC4
No
Replace IC2
572 /