Samsung OFFICESERV 7100 Service Manual page 151

3.5.2.2 Abnormal Operation of All the DSPs of the MFM Board
The method to solve the problem when all the DSPs of the MFM board do not operate is as
follows:
Check the 16.384 MHz clock.
Is there anything abnormal?
No
Check if all the resets of the
board are HIGH.
Check if the 4 MHz,
FOI signal is normal.
Check if the signal is input to the
highway and if there is no signal,
trace up to the time switch(9603) of
the MP10/11 board and repair it.
Is there anything abnormal?
No
Check the ADDRESS/DATA
buffer signal.
© SAMSUNG Electronics Co., Ltd.
Yes
Replace the oscillator(Y1).
Yes
Repair the corresponding item.
OfficeServ 7100 Service Manual
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