Omron 8025G Maintenance Manual page 163

MAINTENANCE AND REPAIR
WAVEFORM 46: Each B Data Bus line
Oscilloscope Settings:
Vertical, 1 V/cm
Horizontal, 2 Usec/cm
Synchronization, internal
IF SIGNAL IS INCORRECT OR ABSENT,
QIECK:
XFl-3, 6, 8, 11; XF2-3, 6, 8, 11:
related input circuitry
WAVEFORM
47:
CPU BUSY
Oscilloscope Settings:
Vertical,
I
V/cm
Horizontal,
2
usec/cm
Synchronization, internal
IF SIGNAL
I
S INCORRECT OR ABSENT,
CHECK: .
XE6-8 and related input circuits
WAVEFORM 48:
T2 .
Oscilloscope Settings:
Vertical,
I
V/cm
Horizontal, 2 usec/em
Synchronization, internal
IF SIGNAL IS INCORRECT OR ABSENT.
CHECK:
XB4-6, XA2-3, input circuitry re-
lated to XA2- 3
SECTION 6
6-40