Pioneer f-502 Service Manual page 79

LED-lighting patterns
Status of the Unit
Standby,
Lit in red
power management
Power on Lit in blue
Flashing in red
PDP's power not on
(at 1-sec intervals)
Flashing alternately in red
System cable disconnected *
and blue (at 1-sec intervals)
Waiting for start of rewriting
by the microcomputer
Waiting for finish of rewriting
by the microcomputer
Flashing in blue n times
(initially at 0.5-sec intervals
Shutdown (circuit protection)
then 2.5-sec intervals)
Flashing in red for n times
Power-down
(initially at 0.5-sec intervals
(circuit protection)
then 2.5-sec intervals)
TRAP switch operation
* In this case, the red and blue areas on the screen of the panel flash alternately.
PDP436PU, PDP506PU, PRO436PU, PRO506PU
LED-lighting Pattern
B
R
B
R
B
R 1sec
B
R
B 100msec
R 100msec
B 50msec
R 50msec
B 0.5sec
R
B
R
0.5sec
B
R
1sec
79
2.5sec
2.5sec