diff --git a/src/mame/drivers/kongs470.cpp b/src/mame/drivers/kongs470.cpp
index 3a5dba9ce54..06f9175ee7e 100644
--- a/src/mame/drivers/kongs470.cpp
+++ b/src/mame/drivers/kongs470.cpp
@@ -14,13 +14,15 @@ Main board (with sound)
 470A03      ;  |
 470A04      ;  /
 470G01      ; 27C4096 main prg
+
+Unfortunately there are no PCB pics or more detailed hardware info available.
+Should be the main board for a multi board set, where the satellite boards handle the video part.
+A full cabinet pic is available on Gaming History.
 */
 
 #include "emu.h"
 #include "cpu/m68000/m68000.h"
 #include "sound/k054539.h"
-#include "emupal.h"
-#include "screen.h"
 #include "speaker.h"
 
 
@@ -40,20 +42,12 @@ protected:
 	virtual void machine_start() override;
 
 private:
-	uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
-
 	void main_map(address_map &map);
 
 	required_device<cpu_device> m_maincpu;
 };
 
 
-uint32_t kongs470_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
-{
-	return 0;
-}
-
-
 void kongs470_state::main_map(address_map &map)
 {
 	map(0x000000, 0x07ffff).rom().region("maincpu", 0);
@@ -81,19 +75,11 @@ void kongs470_state::kongs470(machine_config &config)
 	M68000(config, m_maincpu, 10'000'000); // clock unverified
 	m_maincpu->set_addrmap(AS_PROGRAM, &kongs470_state::main_map);
 
-	// video hardware, all TBD
-	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
-	screen.set_refresh_hz(60);
-	screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
-	screen.set_size(64*8, 32*8);
-	screen.set_visarea(40, 400-1, 16, 240-1);
-	screen.set_screen_update(FUNC(kongs470_state::screen_update));
-
 	// sound hardware
 	SPEAKER(config, "lspeaker").front_left();
 	SPEAKER(config, "rspeaker").front_right();
 
-	k054539_device &k054539(K054539(config, "k054539", 10'000'000)); // clock unverified
+	k054539_device &k054539(K054539(config, "k054539", 18'432'000)); // clock unverified
 	k054539.add_route(0, "rspeaker", 0.75);
 	k054539.add_route(1, "lspeaker", 0.75);
 }
@@ -103,15 +89,13 @@ ROM_START( tdbingo )
 	ROM_REGION( 0x80000, "maincpu", 0 )
 	ROM_LOAD16_WORD_SWAP( "470g01.bin", 0x00000, 0x80000, CRC(c0015cfb) SHA1(633e1d6c12691ddd31ccdd41b213b6ed33ae4554) )
 
-	ROM_REGION( 0x100000, "gfx", 0 )   // which GFX custom does this use, if any?
+	ROM_REGION( 0x180000, "k054539", 0 )
 	ROM_LOAD( "470a02.bin", 0x000000, 0x080000, CRC(5b68522d) SHA1(2f14857d315b524ec27238f8e33e650843bda256) )
 	ROM_LOAD( "470a03.bin", 0x080000, 0x080000, CRC(25ee73f3) SHA1(119c99af839f5def342930dccf45d205ad83aef7) )
-
-	ROM_REGION( 0x80000, "k054539", 0 )
-	ROM_LOAD( "470a04.bin", 0x00000, 0x80000, CRC(9b432c4b) SHA1(9ab0396579aba215c8adc81b6568b2b94c226589) )
+	ROM_LOAD( "470a04.bin", 0x100000, 0x080000, CRC(9b432c4b) SHA1(9ab0396579aba215c8adc81b6568b2b94c226589) )
 ROM_END
 
 } // Anonymous namespace
 
 
-GAME( 1995, tdbingo,  0, kongs470, tdbingo, kongs470_state, empty_init, ROT0, "Konami", "Trio de Bingo", MACHINE_IS_SKELETON )
+GAME( 1995, tdbingo,  0, kongs470, tdbingo, kongs470_state, empty_init, ROT0, "Konami", "Trio de Bingo", MACHINE_IS_SKELETON_MECHANICAL )