Hitachi 21 manual BE-IR20 external sync

11. Function setting and changes

11-5 BE-IR20 external sync

The BE-IR20 factory setting is for internal sync. If required, this can be changed to external sync by changing chip parts.

Change the following chip parts for external sync operation.

Sync system	R280	R281		R282	R284
Internal	100 Ω	Absent		Absent	0 Ω	Factory setting
External	Delete	0 Ω		100 Ω	Delete
0 Ω ：	Part code		RME1784
	Type		ERJ3GEYJ0R00V
100 Ω	： Part code		RME1797
	Type		ERJ3GEYJ101V

(Main board side A) (Main board side B)

Location of chip resistors

BE-IR20 / 21 15