Blue Shark (MDS Hellas)
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Display
Type: raster Horizontal
Resolution: 512 x 256
Refresh: 60 Hz
Processors
Zilog Z80 @ 3 MHz
Audio
AY-3-8910A PSG @ 1.5 MHz
Channels: 1
Controls
Players: 1
Coin slots: 3
gambling, 12 buttons
Components (from manual)
74LS153 Logic · Dual 4-line to 1-line data selector/multiplexer
74LS74 Logic · Dual D-type positive-edge-triggered flip-flop
74LS00 Logic · Quad 2-input NAND gate
74LS08 Logic · Quad 2-input AND gate
74LS32 Logic · Quad 2-input OR gate
74LS04 Logic · Hex inverter
74LS138 Logic · 3-line to 8-line decoder/demultiplexer
74LS245 Logic · Octal bus transceiver
74LS273 Logic · Octal D-type flip-flop
74LS244 Logic · Octal buffer/line driver
74LS393 Logic · Dual 4-bit binary counter
74LS161 Logic · Synchronous 4-bit binary counter
74LS139 Logic · Dual 2-line to 4-line decoder/demultiplexer
74LS174 Logic · Hex D-type flip-flop
74LS125 Logic · Quad bus buffer with 3-state outputs
74LS157 Logic · Quad 2-line to 1-line data selector/multiplexer
LM386 Audio · Low voltage audio power amplifier
DIP Switch Settings
Data from MAME. On later hardware, game settings are typically in the Test/Service Menu, not DIP switches. Learn more
Physical switch positions not available for this machine in MAME. Check the service manual below for DIP switch details.
| Setting | Options | Default |
|---|---|---|
| D-UP Percentage | 60% ✱70%80%90% | 60% |
| Main Game Percentage | 75% ✱78%81%84%87%90%93%96% | 75% |
| Reels Speed | Slow ✱Fast | Slow |
| Bonus Score | 32 ✱24 | 32 |
| Key Out | x1 ✱x100 | x1 |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Double-Up | NoYes ✱ | Yes |
| Payout Limit | 0100020005000 ✱ | 5000 |
| Unknown | Off ✱On | Off |
| Clown Percentage | 60% ✱70%80%90% | 60% |
| Coinage A, B & C | 1 Coin / 1 Credit1 Coin / 5 Credits1 Coin / 10 Credits1 Coin / 20 Credits1 Coin / 30 Credits1 Coin / 40 Credits1 Coin / 50 Credits1 Coin / 100 Credit ✱ | 1 Coin / 100 Credit |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Max Win Bonus | 10000 ✱20000 | 10000 |
| Minimum Bet | 0 ✱81632 | 0 |
| Remote Credits | 1 Pulse / 100 Credits1 Pulse / 110 Credits1 Pulse / 120 Credits1 Pulse / 130 Credits1 Pulse / 200 Credits1 Pulse / 400 Credits1 Pulse / 500 Credits1 Pulse / 1000 Credits ✱ | 1 Pulse / 1000 Credits |
| Max Bet | 32647280 ✱ | 80 |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |
| Unknown | Off ✱On | Off |