Pioneer PDP-435PG Service Manual page 61

5
• Identification of locations having abnormality by the number of times the LEDs flash
On Shutdown and power-down
Shutdown
• Operation: When the microcomputer detects any abnormality, it forcibly turns off the unit.
• LED indication: The green LED flashes.
Power-down
• Operation: When the unit is in emergency status, a protection circuit is activated, and the power is turned off.
• LED indication: The red LED flashes.
MR-LED PANEL-LED
Category
STB ON STB
Lit
Lit
Lit
Lit
Lit
Lit
6 times
SD
Lit
7 times
Lit
8 times
Lit
9 times
10 times Lit
Lit
11 times
Lit
12 times
Lit
13 times
1 time Lit
Lit
2 times
Lit
3 times
Lit 4 times
Lit
5 times
Lit
6 times
Lit
PD 7 times
Lit
8 times
Lit
9 times
Lit
10 times
Lit
11 times
Lit
12 times
Lit
13 times
Lit
15 times
∗ If the power-down circuit for X-SUS/Y-SUS is activated because output of the drive waveform for IC4 is stopped, IC4-PD is displayed.
∗∗ If the unit cannot identify which protection circuit was activated, even if a power-down had been detected, the red LED may flash 15 times.
5
6
Content
ON
Communication failure of the
1 time
panel-drive IC
Communication failure of the
2 times
module IIC
Power decrease of the digital
3 times
DC-DC converter
Panel having high
4 times
temperature
5 times Audio failure
Communication failure of the
module microcomputer
Main 3-wire serial
communication in failure
Communication failure of the
main IIC
Communication failure of the
main microcomputer
Fan in failure
MR or unit having higher
temperature
Communication failure of the
digital tuner
MR-ASIC power (DC-DC) in
failure
MR power supply
Panel-POWER SUPPLY
SCAN
SCAN-5V
Y-DRIVE
Y-DCDC
Y-SUS
ADDRESS
X-DRIVE
X-DCDC
X-SUS
DIGITAL-DCDC
IC4 ∗
UNKNOWN ∗∗
PDP-435PE
6
7
Warning indication
Unit's operation
when the MR is connected
Immediate shutdown
Immediate shutdown
Immediate shutdown
Powering off. Internal temperature is too high.
Shutdown 30 seconds
Check temperature around PDP. [SD04]
after warning
Powering off. Internal protection circuits
Shutdown 3 seconds turns power off.
after warning Is the speaker cable short-circuited ?
[SD05]
Immediate shutdown
Is there a short in speaker cable ?
Immediate shutdown
Immediate shutdown
Immediate shutdown
Immediate shutdown
Powering off. Internal temperature is too high.
Shutdown 30 seconds
Check temperature around media receiver.
after warning
[SD11]
Immediate shutdown
Immediate shutdown
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
Immediate power-down
7
8
A
B
C
D
E
F
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