Konami GQ830-HD, Operator'S Manual

Page: 62 / 76

60
7 Maintenance
Trouble Possible cause & check point Measures
Rifle unit orientation
cursor failure to move or
out of position. •Reference settings greatly out
of spec.
•Wires disconnected from rifle
unit’s potentiometer.
•Rifle unit’s potentiometer
wrongly installed.
•Rifle unit’s potentiometer
defective.
° Check performance on
“I/O CHECK” screen.
Make new settings on
“GUN CHECK” screen as
required. (See page 26.)
° Reconnect potentiometer
wires properly. (See page
52.)
°
I n s t a l l p o t e n t i o m e t e r
properly. (See page 49.)
°
Replace potentiometer
with new one. (See page
49.)
Image out of position on
scope screen. •Reference settings greatly out
of position.
° Make new settings on
“ S C O P E S C R E E N
ADJUST” screen. (See
page 27.)
Image too dark or too
bright on scope screen. • S c o p e L C D s c r e e n
maladjusted.
° Readjust brightness on
scope LCD screen. (See
page 57.)
No sound, or sound too
weak or too loud. •Sound level maladjusted.
• W i r e s ( c o n n e c t o r s )
disconnected on PCB unit.
° Make new settings on
“ S O U N D O P T I O N S ”
screen. (See page 28.)
° Check to see if PCB unit
wires (connectors) are all
connected. (See page 53.)
No image on screen at
start (power supplied and
monitor well adjusted) •Error message “Er
**
” in
7-segments display of PCB
unit. (See page 52.)
° Write down the error code
“
**
”, immediately turn
OFF the main power
switch, unplug the power
cord from the receptacle
and contact your nearest
dealer.