Sega Virtua Fighter 4 Kit Installation Service Manual

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Sega Naomi System
JAMMA Harness Wiring
(JAMMA I/O BD)
(Figure 4)
4 1
2
3
5
6
7
8
10
11
12
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1
8
19
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21A
B
C
D
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F
H
J
K
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M
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P
R
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T
U
V
X
Y
Z
a 22
23
24
4ed
26 25cb
28f 279
W
Ground
Ground Ground
Ground
+5v (Not Used)+5v (Not Used)
+5v (Not Used)+5v (Not Used)
(Not Used)(Not Used)
+12v (Not Used)+12v (Not Used)
KeyKey
Coin Meter 1
Coin Meter 2
(Not Used)
(Not Used)
(Not Used)(Not Used)
(Not Used)
(Not Used)
Video Red
Video Blue
Video GroundVideo Green
Video Sync
Service
Test
(Not Used)
Coin 1
Coin 2
1P Start
2P Start
1P UP2P UP
2P Down 1P Down
1P Left
2P Left
1P Right
Attack 1P (1P SW1)
Grapple 1P (1P SW2)
Support 1P (1P SW3)
 Ground
 Ground2P Right
Attack 2P (2P SW1)
 Ground GroundSupport 2P (2P SW3) Grapple 2P (2P SW2)
(Not Used)
(Not Used)(Not Used)
(Not Used) 
						

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CN4
Sega Naomi System
Filter Board Information
Connector Description etc.
PSW2PSW1
CN3CN2CN1
DIPSW1
Power Connectors VGA Level
Video Out Preamp Level
Audio Out Test
 Switch Service
Switch
1
12
23
34
Setting for High
Resolution 31KHZ
1 -4 off
Setting for Standard
Resolution 15KHZ
1 on 2-4 off. 
						

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To prevent electric shock or IC Board malfunctioning, be sure to turn off the
power for the cabinet when installing or removing the IC Board.

Extraneous matter such as dust on the IC Board can cause the IC Board to
generate heat and result in a fire due to short circuit, etc.  Ensure the IC Board
surfaces are always kept clean.

Use NAOMI 2 for the cabinets compatible with JVS.  Using NAOMI for the
cabinet other than those compatible with JVS can cause generation of heat
and a fire.

Be sure to connect the IC Board and connectors completely.  Insufficient
insertion can damage IC Board, etc.

For the IC Board circuit inspection, only the use of Logic Tester is permitted.
The use of ordinary testers is not permitted as these can damage the IC Board.

Do not subject the IC Board to static electricity when installing the IC Board
in the cabinet or when connecting wire harness connectors to the IC Board.

When soldering buttons, etc. to the wire harnesses, be sure to remove the wire
harnesses from the IC Board so as not to subject the IC Board to heat.

Using NAOMI 2 without the Shield Case can cause electric wave trouble.  Be
sure to use NAOMI 2 together with the accessory Shield Case.

The monitor frequency corresponding to NAOMI 2 is 15kHz or 31kHz.
NAOMI 2 can not be used for the cabinet incorporating a monitor or projector
not corresponding to 15kHz or 31kHz.
1.  HANDLING PRECAUTIONS
STOP
IMPORTANT

Concerning the display of JAMMA VIDEO STANDARD:
JAMMA VIDEO STANDARD adopted by NAOMI 2 is referred to as JVS.  As against this
Standard, the conventional JAMMA STANDARD which employs 56P Edge Connectors
adopted by ST-V, etc. is displayed as Old JAMMA STANDARD.
The specific Manual attached to each game sometimes displays JVS as JV STANDARD, New
JAMMA STANDARD, or JAMMA 2 STANDARD against OLD JAMMA STANDARD as
JAMMA STANDARD, JS, etc.

The contents herein described are subject to change without notice. 
						

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2.  SPECIFICATIONS
ON-SCREEN DISPLAY
Monitor Position
Horizontal Synchronous Frequency
31 / 15 kHz
CONTROL PANEL
HORIZONTAL
START 
DEFENSE (GUARD)PUNCH
KICK8WAYS
1
2 
						

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3 -1  OUTLINE OF THE GAME
•You, as a martial art fighter, play in a tournament.
•You operate a playing character to fight against an opponent computer-operated character
(CPU).
•The playing characters covers 13 selectable regular characters and 1 boss character.
3 - 2  PLAYING PROCEDURE
Total 13 characters are available. Out of them you select one character to start the game.
At each stage you play a match against a computer-operated character.
Winning a match
•Each match consists of multiple rounds. You win a match when the number of your gained
rounds reaches a preset value.
•When you win a match at any stage, you can proceed to a next stage and play a match
against a new computer-operated character.
Gaining a round
You can gain a round when either of the following events occurs.
•You successfully reduce the opponent's energy to 0 (zero).
•Your energy remains much more than the opponent's energy when the limit time has become
0 (zero).
•You turn the opponent out of the ring.
When you and the opponent have drawn (that is, at the end of a round, both have a same level of
energy or have knocked each other at the same time), both can gain the round exceptionally.
When you and the opponent have drawn under a sudden death state (that is, the number of the
gained rounds is equal to each other and either can win the match by obtaining one more round),
either with more energy becomes a winner of the match.
When the GAME becomes OVER
The game is over when either of the following events occurs.
•You lose a match against a computer-operated character.
•You finish all the 14 stages: 13 stages, each with a regular computer-operated character, and
1 stage with a boss computer-operated character.
Continuing the game
You can continue the game as follows.
•When you lose a match, the CONTINUE screen appears.
•Insert the credit coins before the limit time is counted down to 0 (zero) on the CONTINUE
screen, and press the start button. Then, you can continue the game (or resume the first round
of the stage where you lost a match).
3.  CONTENTS OF GAME
1
2
3
4
5
6 
						

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3 - 3  CHARACTER SELECT SCREEN

You select one out of the 13 available characters.

Each character indicates its difficulty level: novice, intermediate, or expert.

Place the lever in an upper, lower, left, or right position to migrate from character to
character, and press either of the punch, kick, and defense buttons to select a character.

Hold down the start button and press either of the punch, kick, and defense buttons to toggle
between 1P character's color and 2P character's color.
3 - 4  GAME-PLAYING SCREEN
1P Energy Gauge Reduced when damaged.
The round ends when the gauge reads 0.Limited Time of the Round The round ends when the
time is counted down to 0.
2P Energy Gauge
2P Character
Obtained Rounds of 2PYou win
if you obtain all the rounds.
1P Character
Obtained Rounds of 1P 
						

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3 - 5  BASIC OPERATIONS OF THE CONTROLS
The following explains the operation for a 1P character. For a 2P character, read right and left
reverse.
The following abbreviations are used herein.
P: Punch button
K: Kick button
G: Defense (Guard) button
+: Operating the two or more controls at the same time
•P:Punching attack
•K:Kicking attack
•G:Defending upper and middle parts
•Lever in a lower position + G: Defending lower part
(Note: The opponent may attack you at your upper, middle, or lower part. You must defend
your upper, middle, or lower part accordingly.)
•Lever in a right position: Moving forwards
•Lever in a left position: Moving backwards
•Lever in an upper position: Dodging away from you
•Lever in a lower position instantly: Dodging toward you
•P or K + lever in an upper position: Jumping upwards
•P or K + lever in an upper right position: Jumping diagonally forwards
•P or K + lever in an upper left position: Jumping diagonally backwards
•Lever in a right position two times quickly: Dashing forwards
•Lever in a left position two times quickly: Dashing backwards
•Lever in a lower right position two times quickly: Crouching and dashing forwards
•Lever in a lower left position: two times quickly: Crouching and dashing backwards
•Lever held in a lower position: Crouching
•P + G when you are close to the opponent: Throwing
•P + G when the opponent is throwing you: Escaping the throw (slipping)
•Lever in an upper position + P for the downed opponent: Jumping and attacking the downed
opponent
•Repeated G when you are downed: Standing up quickly
•Repeated K when you are downed: Kicking attack immediately after quickly standing up
•Lever in a left position when you are downed: Rolling backwards and standing up
•Continuously operated lever when you are faltering: Unfaltering quickly 
						

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3 - 6  SPECIAL OPERATIONS OF THE CONTROLS
Dodging/Attacking
Immediately after surely dodging by a lever operation, you attack an opponent. Thus you can
use the combination of dodging/attacking skills.
Lever in an upper position + P + K + G: Dodging away from you and attacking
Lever in a lower position instantly + P + K + G: Dodging toward you and attacking
Ukemi (safe ways of falling down)
The ukemi enables you to regain your balance just when landing and to immediately attack an
opponent. This skill lessens damage to you. Thus you can escape from the crunch and rather
earn a chance to counterattack. You may be just downed or use the ukemi, whichever is
tactically desirable in each situation.
P + K + G immediately before you are downed: Ukemi
Attacking with the accumulated energy
Using the energy accumulated for a little time, you can destroy an opponent's defenses. This
high-risk, high-return skill enhances your tactical capabilities. Special commands, one each with
a character, are available to activate this function.
Fighting by the walls
•You may damage and destroy the walls. Thereby you can change the state of the ring as
tactically required.
•The opponent may falter when you throw him/her against the walls. This enables you to use
the combination (Combo) skills. 
						

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3 - 7  PERSON-VS-PERSON (VS) MATCHS
•A new player may join you in playing the GAME or selecting a character. As a result the
system suspends the current one-person match against a computer-operated character and
starts a person-vs-person match.
•The new player must insert the credit coins before joining.
•After playing the person-vs-person match only the winner can continue to play the
suspended match: one-person match against a computer-operated character. He/she resumes
the first round of the suspended match.
•When you have set the STAGE item to RANDOM on the GAME ASSIGNMENTS screen,
the built-in computer (CPU) randomly selects a stage.
•When you have set the STAGE item to SELECTIVE on the GAME ASSIGNMENTS
screen, the newly joined player selects a stage. (For more information see the chapter 4, B, b.
"GAME ASSIGNMENTS.") To select, he/she places the lever in an upper, lower, left, or
right position to migrate from stage to stage, and presses either of the punch, kick, and
defense buttons.
PERSON-VS-PERSON (VS) MATCHS•STAGE SELECT SCREEN 
						

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4.  TEST MODE
A.  SYSTEM MENU
When settings are changed in SYSTEM ASSIGNMENTS, COIN
ASSIGNMENTS, and GAME ASSIGNMENTS of GAME TEST MODE, be sure
to exit from the test mode of SYSTEM MENU screen.  The contents of setting
changes are stored in the IC on the BOARD when exiting from the Test Mode.  If
the power is turned off in the Test Mode (before exiting), the contents of setting
changes are ineffective.  In this case, the settings remain unchanged.STOP
IMPORTANT
This test mode mainly allows the IC Board to be checked for accurate functioning, monitor
color to be adjusted as well as COIN ASSIGNMENTS and GAME ASSIGNMENTS to be
adjusted.
1) Connect the power, and press the TEST Button. Then the following SYSTEM MENU screen
appears.
   SYSTEM MENU
   RAM TEST
   JVS TEST
   SOUND TEST
   C.R.T. TEST
   SYSTEM ASSIGNMENTS
   COIN ASSIGNMENTS
   BOOKKEEPING
   BACKUP DATA CLEAR
   CLOCK SETTING
        ROM BOARD TEST
       GAME TEST MODE
       [X X X X X X X X X  ]
        -> EXIT
SELECT WITH SERVICE BUTTON
                      AND
          PRESS TEST BUTTON
1423
123 144424443For the SYSTEM ASSIGNMENTS, do not
change the following default settings:
CABINET TYPE: 2 PLAYER(S)
MONITOR TYPE: HORIZONTAL
SERVICE TYPE: COMMON
For the COIN ASSIGNMENTS, set as follows:
COIN CHUTE TYPE: INDIVIDUAL
COIN/CREDIT SETTING: at discretion
SEQUENCE: at discretion
Out of the COIN ASSIGNMENTS items, the SEQUENCE # items means as
follows:
SEQUENCE 1: The number of credits required for starting the game
SEQUENCE 2: The number of credits required for continuing the game
SEQUENCE 3 to 8: Not Used
BOOKKEEPING 2/2 means as follows:
P1 SEQ 1: Play frequency of Player 1
P2 SEQ 2: Frequency of CONTINUE by Player 1
P3 SEQ 3 ~ 8: Not Used