diff --git a/src/engine/platform/pce.cpp b/src/engine/platform/pce.cpp
index 87f1af1f1..01efd7131 100644
--- a/src/engine/platform/pce.cpp
+++ b/src/engine/platform/pce.cpp
@@ -519,7 +519,7 @@ int DivPlatformPCE::init(DivEngine* p, int channels, int sugRate, unsigned int f
     isMuted[i]=false;
   }
   setFlags(flags);
-  pce=new PCE_PSG(tempL,tempR,PCE_PSG::REVISION_HUC6280);
+  pce=new PCE_PSG(tempL,tempR,PCE_PSG::REVISION_HUC6280A);
   reset();
   return 6;
 }
diff --git a/src/engine/platform/sound/pce_psg.cpp b/src/engine/platform/sound/pce_psg.cpp
index f9c1ee099..ed71e0fd2 100644
--- a/src/engine/platform/sound/pce_psg.cpp
+++ b/src/engine/platform/sound/pce_psg.cpp
@@ -157,6 +157,12 @@ void PCE_PSG::RecalcUOFunc(int chnum)
 
  //printf("UO Update: %d, %02x\n", chnum, ch->control);
 
+ // what is this?
+ if (lfoctrl&3 && chnum==1) {
+   ch->UpdateOutput = &PCE_PSG::UpdateOutput_Off;
+   return;
+ }
+
  if((revision != REVISION_HUC6280 && !(ch->control & 0xC0)) || (revision == REVISION_HUC6280 && !(ch->control & 0x80)))
   ch->UpdateOutput = &PCE_PSG::UpdateOutput_Off;
  else if(ch->noisectrl & ch->control & 0x80)