■ Defective points assumed from the number of times of LED flashing
No. of times of LED flashing
LEDs on the panel
LEDs on the MR
Category
Site detected as
Possible defective points (representative examples)
OSD when detected
RED
Blue
RED
Blue
∗
1
defective
(warning message)
Blue 1
Red
SD
Panel drive IC
*
2
None
Blue 2
Red
Module section IIC
*2
None
Blue 3
Red
Power decrease of
*2
None
DIGITAL-DC-DC
Blue 4
Red
Panel having abnormally
*2
Powering off.
high temperature
Internal temperature is too high.
Check temperature around PDP. [SD04] ∗6
Blue 5
Red
Short-circuiting of the
*2
Internal protection circuit turns power off.
speakers
Is there a short in speaker cable? [SD05]
Red
Blue 6
Module microcomputer
Disconnection of the system cable
None
Defective module microcomputer or its peripheral circuits of the panel (Refer to
the service manual of the
PDP-436PU
or
PDP-506PU
.)
Defective main microcomputer (IC
5206
)
Failure in communication (TXD_MD, RXD_MD, REQ_MD) between the panel's
module microcomputer and IC
5206
(main
microcomputer)
Red
Blue 7
3-wire serial connection
Defective IC
5002
or its peripheral circuits
None
of the main section
Failure in communication (
TXD_IF, RXD_IF, CLK_IF, CE_IF, REQ_IF,
BUSY_IF
) between IC
5002
and IC
5206
(main
microcomputer)
Defective IC
7001
or its peripheral circuits
Failure in communication (TXD_IC3, RXD_IC3, CLK_IC3,
CE_IC3
,
REQ_IC3
,
BUSY_IC3
) between IC
7001
and IC
5206
(main microcomputer)
Red
Blue 8
IIC of the main section
Defective U
4401
(
FE1
) or its peripheral circuits
None
Defective U4402 (FE2) or its peripheral circuits
Defective IC4401 (MPX) or its peripheral circuits ∗3
Defective IC
4801
(AV_SW) or its peripheral circuits
Defective IC
4702
(RGB_SW) or its peripheral circuits
Defective IC5602 (CCD) or its peripheral circuits
Defective ICxxxx (GCR) or its peripheral circuits ∗4
Defective IC6003 (M-VDEC) or its peripheral circuits
Defective IC6001 (S-VDEC) or its peripheral circuits ∗5
Defective IC6201 (ADC) or its peripheral circuits
Defective IC6404 (HDMI) or its peripheral circuits
Defective IC7202 (PLK-T) or its peripheral circuits
Defective ICxxxx (PLK-R) or its peripheral circuits
Defective IC5405 (TTX-COM, TTX-BSY) or its peripheral circuits
∗3
Defective IC5202 (MA-EEP)or its peripheral circuits
Failure in communication (SCL_AV, SDA_AV,
SCL_MA
,
SDA_MA
, SCL_EP,
between one of the above devices and IC
5206
main
microcomputer)
Red
Blue 9
Main microcomputer
Defective IC
5206
(main microcomputer)
None
Failure in communication (TXD_IF, RXD_IF, CLK_IF,
CE_IF, REQ_IF,
BUSY_IF
) between IC
5206
(main microcomputer) and
IC
5002
Red
Blue 10
Fan
Failure in the fan motor, or the fan stopped because of dust attached to the fan None
Red
Blue 11
MR or unit having abnormally
The Media Receiver or the unit being used at high temperature
Powering off. Internal temperature is too high.
high temperature
Check temperature around media receiver. [SD11]
Red
Blue 12
Digital tuner
Defective DTV tuner
Failure in communication (TXD_DT, RXD_DT) between the digital tuner and IC
520
6
(main microcomputer)
None
Red
Blue 13
ASIC power supply (DC-DC)
Defective U
4201
(DD_CON) or short-circuiting elsewhere
∗
6
None
∗
1: Shutdown (SD) is a protective operation controlled by the microcomputer, and you can turn on the unit again using the remote control unit.
Power-down (PD) is a protective operation activated by the circuitry and can be reset after AC power is off for about 1 minute.
∗
2: Refer to the service manual of the PDP-436PU or PDP-506PU.
∗
3
: Only for EU and IRD model,
∗4: Only for J model,
∗5: Except for US model.
∗6 Only for one-body model,
17