Panasonic TC-P2013TI Guida rapida

Panasonic Corporation 2013

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a violation of law.

Model No. TC-P2013TI

Ver. 1.0

Blinking Code and “No Power”

Troubleshooting Flowchart

(SOS – Shutdown Detect)

Slide 1

Troubleshooting Information

Order No. ITD1302912GE

Ver. 1.0

Important Information

•To avoid the unnecessary replacement of multiple PC boards, please read this before

beginning to repair this unit.

•Do not use any service documentation other than the one designed for this particular model.

•Techniques used on previous models may not necessarily apply to the model you are

working on.

•For accurate diagnosis during troubleshooting, do not skip or alter the order of steps on the

guide.

Slide 2

When an abnormality occurs in the unit, the “SOS Detect” circuit is triggered and the TV shuts down.

The power LED on the front panel will flash a pattern indicating the circuit that has failed.

Cautions:

If the power LED continues to blink even after the TV is unplugged, press and hold the power switch

on the TV for a few seconds until the LED turns off.

Some steps require removal of connectors and sometimes PC boards removal. Do not allow the TV to

run for more than 30 seconds while connectors or boards are disconnected.

NOTE: When taking voltage reading, place your meter’s probe on the test point or pin indicated before

connecting the TV to the AC line. The voltage you intent to measure may only appear for a brief

moment.

Warning: The Vsus line has large capacitors that hold the charge for some time even after the TV has been turned off and

unplugged. When disconnecting P2/SC2 or P11/SS11, bleed the remaining charge of the Vsus before reconnecting the cable.

Use a 500 ohms/ 5W (At least) resistor to discharge the Vsus line before reconnecting P2/SC2 or P11/SS11.

SOS Precautions

Slide 3

42S60

50/55/60/65ST60

50S60

PSS

55/60/65S60

PSS

Board Layout

Slide 4

Board Layout

Board Layout and Connectors Location (1)

and Connectors Location (1)

TC-P42 S60

P35

SN2

PSS

C1 C2

SS53

SS55

C25

SN20

C10 C20 C21 C26

A20

A31

A32

A6A

A12

Slide 5

Board Layout

Board Layout and Connectors Location (2)

and Connectors Location (2)

TC-P50 ST60

P2 P11

P35

SS11

SC2

C1 C2

C2 C3

SS2

SS33

SS52

SS54

SS57

SC20

SC41

SU41

SC46

SD46

SC42

SD42

SU11

SD11

C14 C18 C10 C20

C28

C25 C21 C26 C36 C31

A20

A31

A32

A33

A6 A12

Slide 6

SC/SS

(“42: SN)

“42/50: PSS

“55/60/65: P

Missing F15V (As a result of Shorted Vsus/Vda)Incomplete or interrupted

Boot Program execution

of PEAKS IC (IC8000).

Fast

3 BLINKS

#4 Not

Often

#3 Occasionally#2#1 Suspect

ASC

(“42: SN)

An increase or reduction of the Energy Recovery

Circuit output (MID).

Shorted SUB5V.

Open or loose connection between SC and A boards

(SC20(SN20)/A20).

Open or loose connection between connectors of A and C

boards.

SC Energy Recovery

Circuit

6 BLINKS

Failure of IC9300.Discharge Control Circuit

DDC (IC9300)

9 BLINKS

A“42/50: PSS

“55/60/65: SS

Abnormality of the sustain drive circuit.

Open or loose connection between the SS/SS2 Boards

and FPCs from the panel (SS5# – SS5# – SS5#).

Sustain Drive Circuit and

Connection between the

SS(PSS) board and the

Panel.

8 BLINKS

A/Panel“42/50: PSS

“55/60/65: SS

(“42: SN)

SU/SD

(“42: SN)

Missing Vsus. ( Open or loose connection between

connectors SC2(SN2)-P2. )

Abnormality of the scan circuit output, the 15V_F, Vad, and

Vscn circuit.

Open or loose Connection between the SC board and

the SU/SD board (SC41, SC42, SC46).

Defective panel.

Scan Drive Circuit and

Connection between the

SC board and the SU/SD

board.

7 BLINKS

Defective A board.IC8000 Internal problem

13 BLINKS

Speakers/

Subwoofer

Defective Speaker/Subwoofer.

Pinched Speaker Wire.

Audio Amp. Circuit

12 BLINKS

Over Voltage Condition of SUB5V or SUB3.3V.

Low voltage or SUB3.3V

SUB3.3V_Sense (OVP)

10 BLINKS

“42: SN

50/55/60/65: A

“42/50: PSS

“55/60/65: P

Missing P15V.P15V from the P board

2 BLINKS

Read error.

Wake up error of IC9300.

Panel Information SOS

Communication problem.

1 BLINK

LIST OF BOARDS POSSIBLY CASUSING THE FAILURECONDITIONS TRIGGERING

THE SHUTDOWN

CIRCUIT

MONITORED

POWER LED

ERROR

CODE

Power LED Error Code Definition (TC-P**S60)

Slide 7

#4 Not Often#3 Occasionally#2#1 Suspect

ASC

An increase or reduction of the Energy Recovery

Circuit output (MID).

Shorted SUB5V.

SC Energy Recovery

Circuit

6 BLINKS

Failure of IC9300.Discharge Control Circuit

DDC (IC9300)

9 BLINKS

ASS

Abnormality of the sustain drive circuit.

Open or loose connection between the SS/SS2 Boards

and FPCs from the panel (SS52 – SS54 – SS55 – SS57).

Open or loose connection between connectors of A and C

boards.

Open or loose connection between SC and A boards

(SC20(SN20)/A20).

Sustain Drive Circuit and

Connection between the

SS board and the Panel.

8 BLINKS

A/PanelSSSCSU/SD

Missing or shorted Vsus.

Abnormality of the scan circuit output, the 15V_F,

the scn_pro, and Vscn circuit.

Loose or open Connection between the SC board and

the SU/SD board (SC41, SC42, SC46).

Open or loose connection between connectors SC2/P2

Defective panel.

Scan Drive Circuit and

Connection between the

SC board and the SU/SD

board.

7 BLINKS

Defective A board.IC8000 Internal

Communication

13 BLINKS

Speakers/

Subwoofer

Defective Speaker/Subwoofer.

Pinched Speaker Wire.

Audio Amp. Circuit

12 BLINKS

APSSSC

Over Voltage Condition of SUB5V or SUB3.3V.

Low voltage of SUB3.3V (Result of P15V shorted)

SUB3.3V_Sense (OVP)

10 BLINKS

Missing P15V.P15V from the P board

2 BLINKS

Read error.

Wake up error of IC9300.

Panel Information SOS

Communication problem.

1 BLINK

LIST OF BOARDS POSSIBLY CASUSING THE FAILURECONDITIONS TRIGGERING

THE SHUTDOWN

CIRCUIT

MONITORED

POWER LED

ERROR CODE

Power LED Error Code Definition (TC-P**ST60)

Slide 8

IC8000-1

Peaks

sLD8

Standby

uCOM

System

uCOM

PANEL_SOS

SC_SOS6

SS_SOS8

SOS_DCC_S (9)

SC_SOS7

10 Normal : all input = “L”

(output = “L” )

A33

A20

IC9300

PD5L

(Analog output)

6 – 9 blinks

SC_UHZ 18

179

A20

(If no signal,

Discharge Stop

: 6/8 blinks)

1314 E3

PDP_DRVRST (Discharge Reset)

DRVRST

(If no 3.3V in C1/C2-PCB,

Discharge Stop

: 6/8 blinks)

D_UHZ

P3.3V

2 blinks

Q9201

P15V

2 Blinks

if P15 is

missing

IC5000

REG

(STB3.3V)

RESET

P15V

Det. Circuit

NSOS

Slide 9

P15V_DET

IC9015

AND

A31

3.3V_DET A32

E27

PSS

A6A

AA3

Protection Circuit Block Diagram 1 of 2 (TC-P**S60)

2 BlinksShorted (42/50 inch)

Fast 3 BlinksShorted (55/60/65 inch)

2 BlinksMissingP15V

(“42/50) (“55/

60/65)

(“42)

IC8000-2

Peaks

sLD8

Standby

uCOM

System

uCOM

STB3.3V

SOS

10 blinks

AB6

Q8771

SUB3.3V

SUB5V

SUB3.3V

SOUND_SOS

12blinks

IC4900

Audio

AMP 18 T3

Normal=“H”

SUB5V &

SUB3.3V

OV Det.

Circuit

10 Blinks if

SUB5V or

SUB3.3V is

too high

Missing

SUB5V 6 blinks

after 11 sec.

Shorted

10 blinksOver Voltage

Slide 10

SUB3.3V

(10 blinks)

3 Fast Blinks

If SUB3.3 is missing,

Software can not

wake up correctly,

then 3 blinks.

Protection Circuit Block Diagram 2 of 2 (TC-P**S60)

6 Blinks

If SUB5 is missing,

Panel drive control signal

can not be output to SC

board, then 6 blinks.

Fast

3 blinks

Shorted

Over Voltage 10 blinks

Missing

SUB3.3V

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