25
No Power
See Next Page.
Turn on the Main
Power Switch.
Can an audible
click be heard
from the Power
relay?
If connector is good, replace
the P Board.
Yes
No
Standby 7V
JS7963
OK?
Yes
No
Refer to AP Board test point locations
Refer to AP Board test point locations
Slide 13
Slide 13
Check for 6V on pin 11 of
connector AP2 (RELAY.)
Check for STBY 7V on pin 12 of
connector AP2.
7V
Present?
Yes
6V
Present?
Check for the primary
24V and 10V output.
The ALL Off signal on Pin 7
of connector AP4 should go
low when the Main Power
switch is depressed.
Pin 7 low?
Replace the
Main Switch.
No
No
Yes
24V & 10V
OK?
Replace the
P Board.
No
Yes
No
Summary of Contents for Lx-600
Page 6: ...6 Board Description...
Page 31: ...31 Pedestal Removal...
Page 32: ...32 Pedestal Removal...
Page 33: ...33 The End The End...