Pioneer f-502 Service Manual page 76

PDP436PU, PDP506PU, PRO436PU, PRO506PU
• Operation statuses indicated by LEDs
Status
Standby
1 Lit in Red
2 Lit in Blue
Power ON
Red flashes
AC Power OFF of
3
(1000ms)
one side
Red and
System cable
blue flash
4
disconnection
(1000ms)
Red flashes
5
Power-down
(500+2500ms)
Blue flashes
6
Shutdown
(500+2500ms)
Lit in Red and
No backup copy 7 blue flashes
(200ms)
• PD (power-down) count
1 Not used
2 POWER SUPPLY Unit
3 SCAN Assy
4 5V power supply for SCAN
5 Y-DRIVE (Not used)
6 DCDC for Y drive
7 Y-SUS
8 ADDRESS Assy
9 X-DRIVE
10 DCDC for X drive
11 X-SUS
12 Not used
13 Sequence drive stop
14 Not used
15 UNKNOWN
Note:
• When a shutdown occurs, a warning will be issued by the
Media Receiver and displayed, then the power will be shut off.
• When a shutdown or power-down occurs on the Panel side,
the Media Receiver will enter Standby mode (the red LED
will light).
LED Pattern
Blue
Red
Blue
Red
Blue
Red
1000ms
Blue 1000ms
Red 1000ms
Blue
Once Twice
Red
500ms
Blue
500ms
Red
Once Twice
200ms
Blue
Red
: Lit in Red LED
: Lit in Blue LED
• SD (shut down) count
* When a jumper (J105) between the HD AUDIO Assy and
the POWER SUPPLY Unit is disconnected, the SD LED
flashes five times in this manner.
76
n times 2.5s
n times
2.5s
1 SEQUENCE PROCESSOR (SQ_IC)
2 MDU-IIC
3 RST2 abnormality
4 Panel high temperature
5 Speaker short-circuit *
Once
Once