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Diffstat (limited to 'src/mame/drivers/esripsys.cpp')
-rw-r--r--src/mame/drivers/esripsys.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mame/drivers/esripsys.cpp b/src/mame/drivers/esripsys.cpp
index c1521980411..8186124ecec 100644
--- a/src/mame/drivers/esripsys.cpp
+++ b/src/mame/drivers/esripsys.cpp
@@ -33,6 +33,7 @@
#include "cpu/m6809/m6809.h"
#include "machine/6840ptm.h"
#include "machine/nvram.h"
+#include "sound/volt_reg.h"
#include "speaker.h"
@@ -693,7 +694,8 @@ static MACHINE_CONFIG_START( esripsys )
MCFG_SOUND_ADD("dac", MC3410, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 1.0) // unknown DAC
MCFG_SOUND_ADD("dacvol", MC3408, 0) // unknown DAC
MCFG_SOUND_ROUTE_EX(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "dac", -1.0, DAC_VREF_NEG_INPUT)
- MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_POS_INPUT, 1.0)
+ MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
+ MCFG_SOUND_ROUTE_EX(0, "dacvol", 1.0, DAC_VREF_POS_INPUT)
MCFG_SOUND_ADD("tms5220nl", TMS5220, 640000)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 1.0)