diff --git a/hardware_components/ohmpi_card_3_15.py b/hardware_components/ohmpi_card_3_15.py
index f99bb50b883dcfc4336124e1cb4c47712df1e5bc..22c732475d54828d783246e1f78417f7a9ba4eaa 100644
--- a/hardware_components/ohmpi_card_3_15.py
+++ b/hardware_components/ohmpi_card_3_15.py
@@ -98,9 +98,6 @@ class Tx(TxAbstract):
 
         self.adc_gain = 2 / 3
 
-        # DPH 5005 Digital Power Supply
-        self.turn_on()
-        time.sleep(TX_CONFIG['dps_switch_on_warm_up'])
         self.pwr = None
 
         # I2C connexion to MCP23008, for current injection
@@ -108,9 +105,6 @@ class Tx(TxAbstract):
         self.pin4.direction = Direction.OUTPUT
         self.pin4.value = True
 
-        self.exec_logger.info(f'TX battery: {self.tx_bat:.1f} V')
-        self.turn_off()
-
     @property
     def adc_gain(self):
         return self._adc_gain