Nemesis (ROM version)
Also known as: Gradius
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Display
Type: raster Horizontal
Resolution: 256 x 224
Refresh: 60.61 Hz
Processors
Motorola MC68000 @ 9.216 MHz
Zilog Z80 @ 1.79 MHz
Audio
AY-3-8910A PSG @ 1.79 MHz
AY-3-8910A PSG @ 1.79 MHz
RC Filter
RC Filter
RC Filter
RC Filter
Konami 005289 SCC @ 3.58 MHz
Channels: 1
Controls
Players: 2
Coin slots: 2
joy, 8-way, 3 buttons
joy, 8-way, 3 buttons
Components (from manual)
Z80 CPU · multiple locations · Main processors
LS244 multiple locations · Octal buffer/line driver
LS138 multiple locations · 3-to-8 line decoder
LS245 multiple locations · Octal bus transceiver
LS373 multiple locations · Octal transparent latch
LS139 multiple locations · Dual 2-to-4 line decoder
LS174 multiple locations · Hex D-type flip-flop
LS04 multiple locations · Hex inverter
LS32 multiple locations · Quad 2-input OR gate
LS08 multiple locations · Quad 2-input AND gate
LS00 multiple locations · Quad 2-input NAND gate
2256 multiple locations · 8K x 8 RAM
2114 multiple locations · 1K x 4 RAM
2732 multiple locations · 4K x 8 EPROM
4364 multiple locations · 8K x 8 ROM
LS273 multiple locations · Octal D-type flip-flop
LS157 multiple locations · Quad 2-input multiplexer
LS367 multiple locations · Hex buffer with 3-state outputs
LS74 multiple locations · Dual D-type flip-flop
4-3-8010 multiple locations · Custom sound IC
VLM5030 sound section · Speech synthesis IC
PCBs (from manual)
Main PCB
Primary game logic board
Primary game logic board
Sound PCB
Audio processing board with speech synthesis
Audio processing board with speech synthesis
Fuses (from manual)
multiple fuse locations
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 None | 1 Coin/1 Credit |
| SW2:1, SW2:2 | Lives | SW2:1 SW2:2OFF OFF 3 ✱ON OFF 4OFF ON 5ON ON 7 | 3 |
| SW2:3 | Cabinet | ON Upright ✱OFF Cocktail | Upright |
| SW2:4, SW2:5 | Bonus Life | SW2:4 SW2:5OFF OFF 50k and every 100k ✱ON OFF 30kOFF ON 50kON ON 100k | 50k and every 100k |
| 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 | Upright Controls | OFF Single ✱ON Dual | Single |
| SW3:3 | Service Mode | OFF Off ✱ON On | Off |