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Diffstat (limited to 'src/mame/drivers/conic_cchess2.cpp')
-rw-r--r--src/mame/drivers/conic_cchess2.cpp2
1 files changed, 0 insertions, 2 deletions
diff --git a/src/mame/drivers/conic_cchess2.cpp b/src/mame/drivers/conic_cchess2.cpp
index 2b56ffd24ba..3f5150d7de3 100644
--- a/src/mame/drivers/conic_cchess2.cpp
+++ b/src/mame/drivers/conic_cchess2.cpp
@@ -31,7 +31,6 @@ BTANB:
#include "machine/6821pia.h"
#include "machine/sensorboard.h"
#include "sound/dac.h"
-#include "sound/volt_reg.h"
#include "video/pwm.h"
#include "speaker.h"
@@ -259,7 +258,6 @@ void cchess2_state::cncchess2(machine_config &config)
/* sound hardware */
SPEAKER(config, "speaker").front_center();
DAC_1BIT(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.25);
- VOLTAGE_REGULATOR(config, "vref").add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
}