diff --git a/src/emu/inpttype.h b/src/emu/inpttype.h
index c77df5f39f6..3c30ad517f4 100644
--- a/src/emu/inpttype.h
+++ b/src/emu/inpttype.h
@@ -168,7 +168,7 @@ inline void construct_core_types_P2(simple_list<input_type_entry> &typelist)
 	INPUT_PORT_DIGITAL_TYPE( 2, PLAYER2, BUTTON2,             "P2 Button 2",            input_seq(KEYCODE_S, input_seq::or_code, JOYCODE_BUTTON2_INDEXED(1), input_seq::or_code, MOUSECODE_BUTTON3_INDEXED(1), input_seq::or_code, GUNCODE_BUTTON2_INDEXED(1)) )
 	INPUT_PORT_DIGITAL_TYPE( 2, PLAYER2, BUTTON3,             "P2 Button 3",            input_seq(KEYCODE_Q, input_seq::or_code, JOYCODE_BUTTON3_INDEXED(1), input_seq::or_code, MOUSECODE_BUTTON2_INDEXED(1)) )
 	INPUT_PORT_DIGITAL_TYPE( 2, PLAYER2, BUTTON4,             "P2 Button 4",            input_seq(KEYCODE_W, input_seq::or_code, JOYCODE_BUTTON4_INDEXED(1)) )
-	INPUT_PORT_DIGITAL_TYPE( 2, PLAYER2, BUTTON5,             "P2 Button 5",            input_seq(JOYCODE_BUTTON5_INDEXED(1)) )
+	INPUT_PORT_DIGITAL_TYPE( 2, PLAYER2, BUTTON5,             "P2 Button 5",            input_seq(KEYCODE_E, input_seq::or_code, JOYCODE_BUTTON5_INDEXED(1)) )
 	INPUT_PORT_DIGITAL_TYPE( 2, PLAYER2, BUTTON6,             "P2 Button 6",            input_seq(JOYCODE_BUTTON6_INDEXED(1)) )
 	INPUT_PORT_DIGITAL_TYPE( 2, PLAYER2, BUTTON7,             "P2 Button 7",            input_seq(JOYCODE_BUTTON7_INDEXED(1)) )
 	INPUT_PORT_DIGITAL_TYPE( 2, PLAYER2, BUTTON8,             "P2 Button 8",            input_seq(JOYCODE_BUTTON8_INDEXED(1)) )
diff --git a/src/mame/drivers/fidel_csc.cpp b/src/mame/drivers/fidel_csc.cpp
index c8b86b99b7f..4127a2df34a 100644
--- a/src/mame/drivers/fidel_csc.cpp
+++ b/src/mame/drivers/fidel_csc.cpp
@@ -372,7 +372,7 @@ WRITE8_MEMBER(csc_state::pia1_pb_w)
 	m_speech->start_w(data >> 1 & 1);
 
 	// d4: lower TSI volume
-	m_speech->set_output_gain(0, (data & 0x10) ? 0.5 : 1.0);
+	m_speech->set_output_gain(0, (data & 0x10) ? 0.25 : 1.0);
 }
 
 READ8_MEMBER(csc_state::pia1_pb_r)
diff --git a/src/mame/drivers/fidel_elite.cpp b/src/mame/drivers/fidel_elite.cpp
index 3a2226dbafa..458d9e21dfe 100644
--- a/src/mame/drivers/fidel_elite.cpp
+++ b/src/mame/drivers/fidel_elite.cpp
@@ -176,7 +176,7 @@ WRITE8_MEMBER(elite_state::ppi_portc_w)
 	m_speech_bank = data >> 4 & 1;
 
 	// d5: lower TSI volume
-	m_speech->set_output_gain(0, (data & 0x20) ? 0.5 : 1.0);
+	m_speech->set_output_gain(0, (data & 0x20) ? 0.25 : 1.0);
 
 	// d6,d7: bookrom bankswitch (model EAG)
 	if (m_rombank != nullptr)
diff --git a/src/mame/drivers/fidel_vsc.cpp b/src/mame/drivers/fidel_vsc.cpp
index 4f0ccca9b4e..fab9b75e647 100644
--- a/src/mame/drivers/fidel_vsc.cpp
+++ b/src/mame/drivers/fidel_vsc.cpp
@@ -275,7 +275,7 @@ WRITE8_MEMBER(vsc_state::pio_portb_w)
 	m_speech->start_w(data >> 6 & 1);
 
 	// d2: lower TSI volume
-	m_speech->set_output_gain(0, (data & 4) ? 0.5 : 1.0);
+	m_speech->set_output_gain(0, (data & 4) ? 0.25 : 1.0);
 }
 
 
diff --git a/src/mame/drivers/hh_pic16.cpp b/src/mame/drivers/hh_pic16.cpp
index a454aef4ae7..3ade8a5655b 100644
--- a/src/mame/drivers/hh_pic16.cpp
+++ b/src/mame/drivers/hh_pic16.cpp
@@ -44,6 +44,7 @@
   - ttfball: discrete sound part, for volume gating?
   - what's the relation between hccbaskb and tbaskb? Is one the bootleg of the
     other? Or are they both made by the same subcontractor? I presume Toytronic.
+  - uspbball and pabball internal artwork
 
 ***************************************************************************/
 
@@ -1672,7 +1673,7 @@ INPUT_PORTS_END
 void uspbball_state::uspbball(machine_config &config)
 {
 	/* basic machine hardware */
-	PIC1650(config, m_maincpu, 1000000); // approximation - RC osc. R=22K, C=47pF
+	PIC1650(config, m_maincpu, 900000); // approximation - RC osc. R=22K, C=47pF
 	m_maincpu->read_a().set_ioport("IN.0");
 	m_maincpu->write_a().set(FUNC(uspbball_state::write_a));
 	m_maincpu->read_b().set_constant(0xff);
@@ -1683,7 +1684,7 @@ void uspbball_state::uspbball(machine_config &config)
 	m_maincpu->write_d().set(FUNC(uspbball_state::write_d));
 
 	// PIC CLKOUT, tied to RTCC
-	CLOCK(config, "clock", 1000000/4).signal_handler().set_inputline("maincpu", PIC16C5x_RTCC);
+	CLOCK(config, "clock", 900000/4).signal_handler().set_inputline("maincpu", PIC16C5x_RTCC);
 
 	TIMER(config, "display_decay").configure_periodic(FUNC(hh_pic16_state::display_decay_tick), attotime::from_msec(1));
 	config.set_default_layout(layout_hh_pic16_test);
diff --git a/src/mame/layout/mchess.lay b/src/mame/layout/mchess.lay
index dc5911fe027..9e77f64bb7b 100644
--- a/src/mame/layout/mchess.lay
+++ b/src/mame/layout/mchess.lay
@@ -142,7 +142,11 @@
 
 <!-- build screen -->
 
-	<view name="Internal Layout">
+	<view name="Internal Layout (Screen)">
+		<group ref="display"><bounds x="0" y="0" width="86" height="94.434" /></group>
+	</view>
+
+	<view name="Internal Layout (Full)">
 		<bounds left="-1" right="185" top="-1" bottom="96" />
 		<group ref="display"><bounds x="0" y="0" width="86" height="94.434" /></group>
 
@@ -153,8 +157,4 @@
 		<bezel element="text_switch" inputtag="IN.3" inputmask="0x01"><bounds x="95" y="38" width="24" height="2.7" /></bezel>
 	</view>
 
-	<view name="Screen Overlay">
-		<group ref="display"><bounds x="0" y="0" width="86" height="94.434" /></group>
-	</view>
-
 </mamelayout>