diff --git a/src/devices/machine/sensorboard.cpp b/src/devices/machine/sensorboard.cpp
index c10c533c8ac..420b3a4f6ed 100644
--- a/src/devices/machine/sensorboard.cpp
+++ b/src/devices/machine/sensorboard.cpp
@@ -57,7 +57,7 @@ sensorboard_device::sensorboard_device(const machine_config &mconfig, const char
 	// set defaults for most common use case (aka chess)
 	set_size(8, 8);
 	set_spawnpoints(12);
-	set_delay(attotime::from_msec(250));
+	set_delay(attotime::from_msec(75));
 }
 
 
diff --git a/src/mame/drivers/fidel_vsc.cpp b/src/mame/drivers/fidel_vsc.cpp
index 394efe7e37b..1f797713445 100644
--- a/src/mame/drivers/fidel_vsc.cpp
+++ b/src/mame/drivers/fidel_vsc.cpp
@@ -443,6 +443,7 @@ void vsc_state::vsc(machine_config &config)
 
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::BUTTONS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
+	m_board->set_delay(attotime::from_msec(250));
 
 	/* video hardware */
 	PWM_DISPLAY(config, m_display).set_size(8, 16);
diff --git a/src/mame/drivers/novag_cforte.cpp b/src/mame/drivers/novag_cforte.cpp
index 3a9b271a30c..d882f6b96c8 100644
--- a/src/mame/drivers/novag_cforte.cpp
+++ b/src/mame/drivers/novag_cforte.cpp
@@ -259,6 +259,7 @@ void cforte_state::cforte(machine_config &config)
 
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::BUTTONS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
+	m_board->set_delay(attotime::from_msec(200));
 
 	/* video hardware */
 	HLCD0538(config, m_lcd).write_cols().set(FUNC(cforte_state::lcd_output_w));
diff --git a/src/mame/drivers/novag_diablo.cpp b/src/mame/drivers/novag_diablo.cpp
index 19832b02007..1bea1422d24 100644
--- a/src/mame/drivers/novag_diablo.cpp
+++ b/src/mame/drivers/novag_diablo.cpp
@@ -339,7 +339,9 @@ void diablo_state::scorpio68k(machine_config &config)
 
 	/* basic machine hardware */
 	m_maincpu->set_addrmap(AS_PROGRAM, &diablo_state::scorpio68k_map);
+
 	m_board->set_type(sensorboard_device::BUTTONS);
+	m_board->set_delay(attotime::from_msec(150));
 
 	config.set_default_layout(layout_novag_scorpio68k);
 }
diff --git a/src/mame/drivers/novag_scon.cpp b/src/mame/drivers/novag_scon.cpp
index 6a239b66fd3..345161aff1c 100644
--- a/src/mame/drivers/novag_scon.cpp
+++ b/src/mame/drivers/novag_scon.cpp
@@ -209,6 +209,7 @@ void scon_state::scon(machine_config &config)
 
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::BUTTONS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
+	m_board->set_delay(attotime::from_msec(200));
 
 	/* video hardware */
 	PWM_DISPLAY(config, m_display).set_size(3, 8);
diff --git a/src/mame/drivers/novag_sexpert.cpp b/src/mame/drivers/novag_sexpert.cpp
index b5c85944804..ef9aeb53cf8 100644
--- a/src/mame/drivers/novag_sexpert.cpp
+++ b/src/mame/drivers/novag_sexpert.cpp
@@ -425,6 +425,7 @@ void sexpert_state::sexpert(machine_config &config)
 
 	SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS);
 	m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
+	m_board->set_delay(attotime::from_msec(200));
 
 	/* video hardware */
 	SCREEN(config, m_screen, SCREEN_TYPE_LCD);