Sega MINI DELUXE THE HOUSE OF THE DEAD 4 Service Manual page 84

PROBLEMS
During game, graphics are
displayed on the screen, but no
action of left/right guns.
The colour of image on
MONITOR screen is incorrect
The on-screen image of the
monitor sways and or shrinks.
Sound is not emitted.
During game play, Controller
sighting is irregular.
During game play, when
CONTROLLERS Trigger is
pulled, no shots are displayed on
the screen.
During game play, shots are
displayed on the screen but no
action (shake) from one of the two
guns.
Fluorescent lamp doesn't light up.
82
CASE
The guns may not be aligned
correctly in TEST.
Incorrect monitor adjustment.
The power source and voltage are
not correct.
Sound Volume adjustment is not
correct.
Malfunctioning BD and Amp.
Connector connection is incorrect.
GUN alignment is incorrect.
GUN SENSE BD. malfunctioning.
ASSY MASK malfunction.
Trigger SW malfunctioning.
Gun harness malfunctioning.
Gun Shake Motor malfunction.
Fluorescent lamp need
replacement.
Connector connection is incorrect.
COUNTERMERMEASURES
Enter GAME TEST MODE and
re-align both guns and check.
Make appropriate adjustments
Make sure that power supply
and voltage are correct.
Adjust the VTS UNIT's sound
adjustment volume (control)
Perform SOUND TEST.
Check connector connection
from IC BD to Speaker.
Perform GUN alignment in
GAME TEST Mode.
Replace GUN SENSE BD.
Check optic sensors around the
screen are illuminated. Change
any which are faulty.
Replace SW.
Replace Gun harness.
Replace Gun Shake Motor.
Replace the Fluorescent lamp
Check connector connections in
the BILLBOARD.