ARCADE MANUAL ARCHIVEMachine Specs, DIP Switches & Service Manuals

Champion Base Ball Part-2 (set 1)

Alpha Denshi Co. (Sega license) · 1983 · raster Horizontal · 2P · joy · champbb2

Also known as: Taikyoku Base Ball, Champion Baseball II

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Display

Type: raster Horizontal
Resolution: 256 x 224
Refresh: 60 Hz

Processors

2x Zilog Z80 @ 3.072 MHz
Hitachi HD44801 @ 384 kHz

Audio

AY-3-8910A PSG @ 1.536 MHz
6-Bit R-2R DAC
Channels: 1

Controls

Players: 2
Coin slots: 2
joy, 8-way, 3 buttons
joy, 8-way, 3 buttons

Components (from manual)

Z80 CPU · IC · Main processor
2114 RAM · Multiple locations · Static RAM
2732 ROM · Multiple locations · Program ROM
74LS00 Logic · Multiple locations · NAND gates
74LS04 Logic · Multiple locations · Hex inverter
74LS08 Logic · Multiple locations · AND gates
74LS32 Logic · Multiple locations · OR gates
74LS74 Logic · Multiple locations · D flip-flop
74LS138 Logic · Multiple locations · 3-to-8 decoder
74LS157 Logic · Multiple locations · Quad 2-input multiplexer
74LS245 Logic · Multiple locations · Octal bus transceiver
TMS9918 Video · Video section · Video display processor
SN76489 Sound · Audio section · Sound generator

PCBs (from manual)

CPU Board 72-395200
Main processor board
Display Board 72-395200
Video display board

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.

SettingOptionsDefault
CoinageA 2/1 B 3/2A 1/1 B 2/1 ✱A 1/2 B 1/6A 1/3 B 1/6A 1/1 B 2/1
Flip ScreenOff ✱OnOff
Demo SoundsOffOn ✱On
CabinetUpright ✱CocktailUpright
DifficultyEasy ✱HardEasy
UnknownOff ✱OnOff