FE ZAJ, Service Manual

Page: 16 / 28

10
TN512955-E
Perform the following procedure when synchronous rectification waveforms are widely different
from the good example.
Caution:

Failure to adjust synchronous rectification waveforms may result in inaccurate measurement.

If you go into a wrong Adjustment Item screen of the Factory mode, be sure to press the ESC
key, and then retry from the first step. On the different Adjustment Item screen, don’t press
the “ENT” key or the > key, or accurate measurement cannot be performed and poor
measurement results will be obtained.
0V
2

0.5V
・
Good
0V
2

0.5V
・
Not good
MEAS MODE
H:ON R:OFF L:OFF A:OFF
ADJUST MODE
＞
MOVE AVE
▲
CLOCK
Factory Mode Sync phase
▲
Amp gain
▼
Zero save
Sync-phase
Press
▲▼
key
ENT
ESC
MODE ESC
Press the key several times to change to the Adjustment mode.
ZERO ESC
Press the key 5 times.
In the Factory mode that is displayed, move Synchronous Pulse one line
up by using
▲
or
▼
key. Press the ( > ) key to go into the
Synchronous Pulse Phase adjustment screen.
While observing the synchronous rectification waveforms with an oscilloscope,
adjust them by using
▲
or
▼
key. Establish waveforms with the ENT key.
If you want to stop halfway, press the ESC key.