Contra (US / Asia, set 1)
Also known as: Gryzor
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Display
Type: raster Vertical
Resolution: 280 x 224
Refresh: 59.19 Hz
Processors
Hitachi HD6309E @ 3 MHz
Motorola MC6809E @ 1.79 MHz
Audio
YM2151 OPM @ 3.58 MHz
Channels: 1
Controls
Players: 2
Coin slots: 2
joy, 8-way, 2 buttons
joy, 8-way, 2 buttons
Components (from manual)
HD6309P CPU · 6C · Main processor
HD6309P CPU · 6E · Sound processor
007121 Custom · Konami custom sprite chip
007766 Custom · Konami custom chip
005849 Custom · Konami custom sound chip
16L8 PAL · Programmable array logic
LS245 Buffer · Octal bus transceiver
LS244 Buffer · Octal buffer
LS138 Logic · 3-to-8 line decoder
LS139 Logic · Dual 2-to-4 line decoder
LS74 Logic · Dual D-type flip-flop
LS32 Logic · Quad 2-input OR gate
LS04 Logic · Hex inverter
LS00 Logic · Quad 2-input NAND gate
6264 Memory · 8K x 8 SRAM
YM2151 Audio · FM sound synthesizer
M6295 Audio · 4-channel ADPCM voice synthesizer
LM324 Audio · Quad operational amplifier
18.432MHz Oscillator · Main clock crystal
3.579545MHz Oscillator · Sound clock crystal
HD6309 CPU · 12F · Main processor
HD6309 CPU · 12D · Sound processor
YM2151 Sound · 10D · FM sound synthesizer
K007232 Sound · 7D · Custom PCM sound chip
K005849 Custom · 16F · Custom video chip
K051962 Custom · 15F · Custom video chip
K005885 Custom · 13F · Custom video chip
K005924 Custom · 11F · Custom chip
6264 Memory · 14F · 8K SRAM
6264 Memory · 13D · 8K SRAM
2016 Memory · 15D · 2K SRAM
2016 Memory · 16D · 2K SRAM
74LS245 Logic · multiple · Bus transceiver
74LS373 Logic · multiple · Latch
74LS138 Logic · multiple · Decoder
74LS74 Logic · multiple · Flip-flop
74LS32 Logic · multiple · OR gate
74LS00 Logic · multiple · NAND gate
PCBs (from manual)
Power Supply
Main power supply board
Main power supply board
Monitor
Monitor control board
Monitor control board
Isolation Transformer
Power isolation and conversion
Power isolation and conversion
Fuses (from manual)
5 AMP FUSE 5A · Standard
4 AMP FUSE 4A · Standard
DIP Switch Settings
Data from MAME. On later hardware, game settings are typically in the Test/Service Menu, not DIP switches. Learn more
| Switch | Setting | Options | Default |
|---|---|---|---|
| SW1:1, SW1:2, SW1:3, SW1:4 | Coin A | SW1:1 SW1:2 SW1:3 SW1:4ON OFF ON ON 4 Coins/1 CreditOFF ON OFF ON 3 Coins/1 CreditON ON ON OFF 2 Coins/1 CreditON ON OFF ON 3 Coins/2 CreditsOFF ON ON ON 4 Coins/3 CreditsOFF OFF OFF OFF 1 Coin/1 Credit ✱OFF OFF ON ON 4 Coins/5 CreditsOFF OFF OFF ON 3 Coins/4 CreditsON OFF OFF OFF 1 Coin/2 CreditsON OFF OFF ON 2 Coins/5 CreditsOFF ON OFF OFF 1 Coin/3 CreditsON ON OFF OFF 1 Coin/4 CreditsOFF OFF ON OFF 1 Coin/5 CreditsON OFF ON OFF 1 Coin/6 CreditsOFF ON ON OFF 1 Coin/7 CreditsON ON ON ON Free Play | 1 Coin/1 Credit |
| SW1:5, SW1:6, SW1:7, SW1:8 | Coin B | SW1:5 SW1:6 SW1:7 SW1:8ON OFF ON ON 4 Coins/1 CreditOFF ON OFF ON 3 Coins/1 CreditON ON ON OFF 2 Coins/1 CreditON ON OFF ON 3 Coins/2 CreditsOFF ON ON ON 4 Coins/3 CreditsOFF OFF OFF OFF 1 Coin/1 Credit ✱OFF OFF ON ON 4 Coins/5 CreditsOFF OFF OFF ON 3 Coins/4 CreditsON OFF OFF OFF 1 Coin/2 CreditsON OFF OFF ON 2 Coins/5 CreditsOFF ON OFF OFF 1 Coin/3 CreditsON ON OFF OFF 1 Coin/4 CreditsOFF OFF ON OFF 1 Coin/5 CreditsON OFF ON OFF 1 Coin/6 CreditsOFF ON ON OFF 1 Coin/7 CreditsON ON ON ON No Coin B | 1 Coin/1 Credit |
| SW2:1, SW2:2 | Lives | SW2:1 SW2:2OFF OFF 2ON OFF 3 ✱OFF ON 5ON ON 7 | 3 |
| SW2:3 | Unused | OFF OffON On ✱ | On |
| SW2:4, SW2:5 | Bonus Life | SW2:4 SW2:5OFF OFF 30000 70000 ✱ON OFF 40000 80000OFF ON 40000ON ON 50000 | 30000 70000 |
| SW2:6, SW2:7 | Difficulty | SW2:6 SW2:7OFF OFF EasyON OFF Normal ✱OFF ON HardON ON Hardest | Normal |
| SW2:8 | Demo Sounds | OFF OffON On ✱ | On |
| SW3:1 | Flip Screen | OFF Off ✱ON On | Off |
| SW3:2 | Unused | OFF Off ✱ON On | Off |
| SW3:3 | Service Mode | OFF Off ✱ON On | Off |
| SW3:4 | Sound | ON MonoOFF Stereo ✱ | Stereo |