Hitachi BE-IR30 manual BE-IR31 internal sync

11. Function setting and changes

11-6 BE-IR31 internal sync

The BE-IR31 factory setting is for external sync. If required, this can be changed to internal sync by changing chip parts.

Change the following chip parts for internal sync operation.

Sync system	R280	R281		R282	R284
External	Absent	0 Ω		100 Ω	Absent	Factory setting
Internal	100 Ω	Delete		Delete	0 Ω
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-IR30 / 31 19