diff --git a/slsDetectorSoftware/jungfrauDetectorServer/firmware_funcs.c b/slsDetectorSoftware/jungfrauDetectorServer/firmware_funcs.c
index c2bb7bce5..1778c0171 100755
--- a/slsDetectorSoftware/jungfrauDetectorServer/firmware_funcs.c
+++ b/slsDetectorSoftware/jungfrauDetectorServer/firmware_funcs.c
@@ -1039,15 +1039,15 @@ int startReceiver(int start) {
 	int reg=bus_r(addr);
 	//for start recever, write 0 and for stop, write 1
 	if (!start)
-		bus_w(CONFIG_REG,reg|CPU_OR_RECEIVER_BIT);
+		bus_w(CONFIG_REG,reg&(~GB10_NOT_CPU_BIT));
 	else
-		bus_w(CONFIG_REG,reg&(~CPU_OR_RECEIVER_BIT));
+		bus_w(CONFIG_REG,reg|GB10_NOT_CPU_BIT);
 
 	reg=bus_r(addr);
 //#ifdef VERBOSE
 	printf("Config Reg %x\n", reg);
 //#endif
-	int d =reg&CPU_OR_RECEIVER_BIT;
+	int d =reg&GB10_NOT_CPU_BIT;
 	if(d!=0) d=1;
 	if(d!=start)
 		return OK;
@@ -2279,8 +2279,6 @@ int prepareADC(){
     codata=0;    
     writeADC(0x08,0x3);
     writeADC(0x08,0x0);
-     writeADC(0x14,0x40);//lvds reduced range
-     // writeADC(0x14,0x00);//lvds
     
 
           writeADC(0x16,0x01);//output clock phase
@@ -2288,6 +2286,10 @@ int prepareADC(){
 
      //   writeADC(0x16,0x4);//output clock phase
 
+	     writeADC(0x18,0x0);// vref 1V
+	    
+     writeADC(0x14,0x40);//lvds reduced range -- offset binary
+
      writeADC(0xD,0x0);//no test mode
 
 #ifdef TESTADC
diff --git a/slsDetectorSoftware/jungfrauDetectorServer/registers_m.h b/slsDetectorSoftware/jungfrauDetectorServer/registers_m.h
index a1f8b92bb..fae176f09 100755
--- a/slsDetectorSoftware/jungfrauDetectorServer/registers_m.h
+++ b/slsDetectorSoftware/jungfrauDetectorServer/registers_m.h
@@ -392,7 +392,7 @@
 #define TOT_ENABLE_BIT           0x00000002
 #define TIMED_GATE_BIT           0x00000004
 #define CONT_RO_ENABLE_BIT       0x00080000
-#define CPU_OR_RECEIVER_BIT		 0x00001000
+#define GB10_NOT_CPU_BIT		 0x00001000