diff --git a/src/emu/machine/tmp68301.c b/src/emu/machine/tmp68301.c
index d9793f0fefd..9795e075b4a 100644
--- a/src/emu/machine/tmp68301.c
+++ b/src/emu/machine/tmp68301.c
@@ -99,8 +99,15 @@ tmp68301_device::tmp68301_device(const machine_config &mconfig, const char *tag,
 		device_memory_interface(mconfig, *this),
 		m_in_parallel_cb(*this),
 		m_out_parallel_cb(*this),
+		m_imr(0),
+		m_iisr(0),
+		m_scr(0),
+		m_pdir(0),
 		m_space_config("regs", ENDIANNESS_LITTLE, 16, 10, 0, NULL, *ADDRESS_MAP_NAME(tmp68301_regs))
 {
+	memset(m_regs, 0, sizeof(m_regs));
+	memset(m_IE, 0, sizeof(m_IE));
+	memset(m_irq_vector, 0, sizeof(m_irq_vector));
 }
 
 
diff --git a/src/mame/includes/seta2.h b/src/mame/includes/seta2.h
index 5bfca4ffbad..31c86630548 100644
--- a/src/mame/includes/seta2.h
+++ b/src/mame/includes/seta2.h
@@ -10,7 +10,6 @@ public:
 		: driver_device(mconfig, type, tag),
 		m_maincpu(*this,"maincpu"),
 		m_tmp68301(*this, "tmp68301"),
-		m_x1(*this, "x1snd"),
 		m_oki(*this, "oki"),
 		m_eeprom(*this, "eeprom"),
 		m_gfxdecode(*this, "gfxdecode"),
@@ -24,7 +23,6 @@ public:
 
 	required_device<cpu_device> m_maincpu;
 	optional_device<tmp68301_device> m_tmp68301;
-	optional_device<x1_010_device> m_x1;
 	optional_device<okim9810_device> m_oki;
 	optional_device<eeprom_serial_93cxx_device> m_eeprom;
 	required_device<gfxdecode_device> m_gfxdecode;