Panasonic TC-P42S2 Technical Guide

2010 Plasma TV Technical Guide

2010-Plasma FHD TV – S2 Series (13

Applies to models:

TC-P42S2

th

Generation)

Panasonic National Training

Panasonic Service and Technology Company

TTG100218CP

Prepared by N. Kuge, J. Mizukami, and

Cesar Perdomo.

Edited by Cesar Perdomo

"HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.“

Warning This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

Slide 2

Table of Content

Subject Slide

Table of Contents Features 5 Series Line up 6 New Features 7 Specifications 8-10 Model Comparison 11 2009/2010 Models Comparison 12-13 Connectors Location (TC-P42S2) 14 Boards Description 15 TC-P42S2 (FHD Model) 16 Technical Changes 17 Start-up Operation 18 Standby/Power On 19 Standby Operation 20 Power On Operation 21 Power On Circuit Explanation 22 CPU Commands Explanation 23 Supply Voltages (SUB Voltages) For Video Processing Circuit 24-28 Overview of Voltage Distribution 29-31 Troubleshooting “No Power” Symptom 32 Signal Processing 33 Signal Process Circuit Comparison between 2009 and 2010 34 Signal Process Circuit 35 Signal Process Circuit Explanation 36 Audio Signal Processing Circuit 37 SOS Detect (Shutdown) 38 Protection circuit block diagram 39 Power LED Error Code Definition 40-41 SOS Detect Circuit 42-43 Panel Drive SOS Detect Block Diagram 44 SOS Detect Circuit 45-46 1 Blink Error Code 47 Troubleshooting 1 Blink Failure 48 2 Blinks Error Code 49

4 Blinks Error Code 56-57 Troubleshooting 4 Blinks Failure (Flowchart) 58 5 Blinks Error Code 59 Troubleshooting 5 Blinks Failure 60-61 Troubleshooting 5 Blinks Failure (Flowchart) 62 6 Blinks Error Code 63 6 Blinks Error Code Circuit Explanation 64 P15V and P5V Test Points (SC Board) 65 Troubleshooting 6 Blinks Failure (Flowchart) 66 7 Blinks Error Detect Circuit 67-68 Troubleshooting 7 Blinks Failure 69 8 Blinks Error Code 70 8 Blinks Error Code Circuit 71 Troubleshooting 8 Blinks Failure (Flowchart) 72 9 Blinks Error Code 73 10 Blinks Error Code 74 10 Blinks Error Detect Circuit 75 Troubleshooting 10 Blinks Failure (Flowchart) 76 Service Notes 77 Service Mode 78 Self Check/Reset 79 Mirror Function 80-81 Vsus Adjustment with Remote Control 82-83 Troubleshooting 84 1st Step Resistance Test – VFG and VFO 85 1st Step Resistance Test – 5V_F and VFG 86 2nd Step – SC Resistance Test 87 2nd Step – SC Resistance Test VFG and TPSC1 88 2nd Step – SC Resistance Test VFG and TPSC1 89 3rd Step SM Resistance 90 3rd Step SM Resistance Test VFG and VFO 91 3rd Step SM Resistance Test VFG and 5V_F 92 SM Board Isolation Procedure 93-95 TV’s Behavior After Connectors Removal 96 Glossary 97-99

Subject Slide

Troubleshooting 2 Blinks Failure 50 Troubleshooting 2 Blinks Failure (Flowchart) 51 3 Blinks Error Code 52 Troubleshooting 3 Blinks Failure 53-54 Troubleshooting 3 Blinks Failure (Flowchart) 55

Slide 3

Content

1 - Features

Series Lineup New Features Specifications

2 - Models Comparison

Boards Layout Boards Part Number Connectors Location Technical Changes

3 - Start-up Operation

STB Operation

Power On Operation

4 - SOS Detect Circuit with Troubleshooting Flowcharts 5 - Video Signal Process Circuit/Panel Drive Operation 6 - Service Notes

Service Mode

Self-check

Reset

Aging Mode

7 - Troubleshooting

Boards Isolation Procedure

TV’s Behavior After Connectors Removal

Slide 4

Features

Slide 5

Series Line up

SERIES MODELS

42” 46” 50” 54” 58” 65”

VT SERIES

(FHD Premium 3D)

G SERIES

(FHD Core)

S SERIES

(FHD Leader)

PS,U SERIES

(FHD Entry)

X SERIES

(HD Leader)

PX,C SERIES

(HD Entry)

TC-P50VT25 TC-P50VT20

TC-P50G25

TC-P42G25 TC-P46G25

TC-P42S2 TC-P46S2 TC-P50S2 TC-P54S2 TC-P58S2 TC-P65S2

TC-P42U2

TC-P42X2 TC-P50X2

TC-42PX24

TC-P42C2

TC-P46C2

TC-P50G20

TC-50PS24

TC-P50U2

TC-50PX24

TC-P50C2

TC-P54VT25 TC-P58VT25 TC-P65VT25

TC-P54G25 TC-P54G20

TC-58PS24 TC-65PS24

Slide 6

New Features

VT25 VT20 G25 G20 S2 PS24 U2 X2 PX24 C2

Clubs Clubs

High Picture Quality

Smart Networking

FHD 3D

NEW

Dual Scan

Short Stroke Phosphor

NEW

THX Certified

Moving Picture 1080 Lines

1080p 720p

600Hz Sub-field Drive

NEW

Infinite Black Plus (Native CR > 2 Mil:1)

Viera Cast IPTV Wi-Fi Ready (USB)x2 VIERA Image Viewer

Image Viewer (Photo only)

(Movie & Photo)

VIERA Link

4 HDMI 3 HDMI 2 HDMI

Stylish Design

Environmen tally

Friendly

Metallic

NEW

Buck Cut

Energy Saving

(Louver Filter)

Mercury & Lead Free + 100,000 hrs + Eco Mode

Slide 7

NEW

Glossy

NEW

& Pattern Texture

Glossy

Slide 7

Specifications (1 of 3)

VT SERIES G SERIES S SERIES PS SERIES U SERIES X S E RIES PX SERIES C SERIES

Main Specification

Picture Deep Color

Resolution Contrast

(Native) Gradation Filter

Remote THX

X.V. Color Game

Mode Motion

Reality

1920X1080 1920X1080 1920X1080 1920X1080 1920X1080 1024X768 1024X768 1024X768

Infinite:1 Infinite:1 Infinite:1 Infinite:1 Infinite:1 Infinite:1 Infinite:1 Infinite:1

6144 6144 6144 6144 6144 6144 6144 6144 Louver

(Direct filter) w/ Viera Cast w/ Viera Cast - - - - - Y Y N N N N N N Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y N Y Y N N

1080 lines 1080 lines 1080 lines 900 lines 720 lines 720 lines 720 lines 720 lines

Louver (Direct filter)

AR AR - AR AR -

Slide 8

Specifications (2 of 3)

VT SERIES G SERIES S SERIES PS SERIES U SERIES X SERIES PX SERIES C SERIES

Sound Surround

Sound Control BBE Balance Control Lip Sync

Improvement

Terminal Input

AV1 Type (Position)

AV2 Type (Position)

Component1 Type (Position)

Component2 Type (Position)

HDMI1 Position HDMI2 Position HDMI3 Position

Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y N N N N N N N Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y

RCA/S (Rear)

RCA (Side)

RCA (Rear)

Rear Rear Rear Rear Rear Rear Rear Rear Rear Rear Rear Rear Rear Rear Rear Rear Rear Side Side Side Side - - -

RCA/S (Rear)

RCA (Side)

RCA (Rear)

RCA/S (Rear)

RCA (Side)

RCA (Rear)

RCA/S (Rear)

RCA (Side)

RCA (Rear)

RCA/S (Rear)

RCA (Side)

RCA (Rear)

RCA/S (Rear)

RCA (Side)

RCA (Rear)

RCA/S (Rear)

RCA (Side)

RCA (Rear)

RCA/S (Rear)

RCA (Side)

RCA (Rear)

HDMI4 Position PC Input

Terminal Output

Network Ethernet

Digital Audio Out

Side - - - - - - 1 1 - 1 - 1 Y Y Y Y Y Y Y Y

1 1 - - - - - -

Slide 9

Specifications (3 of 3)

VT SERIES G SERIES S SERIES PS SERIES U SERIES X SERIES PX SERIES C SERIES

Card I/F SD Card Slot

SD Card LED Color SD Function

Other I/F USB

(Wi-Fi Ready) RS-232C

Function DLNA

IPTV

Y Y Y Y Y Y Y Y Blue - - - - - - Movie &

Photo 2 2 - - - - - -

1 - - - - - - -

- - - - - - - Viera Cast Viera Cast - - - - - -

Movie & Photo

Photo Photo Photo Photo Photo Photo

Slide 10

Models Comparison

Slide 11

2009/2010 Models Comparison (1 of 2)

2009 model 2010model New features Remarks

3D Added(120kHz frame sequential) Panel NeoPDPeco Panel Native contrast Infinite:1

TC-P**V10 TC-P**VT25/20

TC-P**G10/15 TC-P**G25/20

TC-P**S1 TC-P**S2

Screen coating Louver (Direct filter, No front glass) USB Added (Wi-Fi Ready) Power Consumption -40%

Panel NeoPDPeco Panel Native contrast Infinite:1 Screen coating Louver (Direct filter, No front glass) Power Consumption -40%

Panel NeoPDPeco Panel Native contrast Infinite:1 X.V. Color Added Power Consumption -40%

TC-**PS14 TC-**PS24

Panel NeoPDPeco Panel Native contrast Infinite:1 Gradation 6,144 X.V. Color Added Power Consumption -40%

Slide 12

2009/2010 Models Comparison (2 of 2)

2009 model 2010model New features Remarks

Panel NeoPDPeco Panel Native contrast Infinite:1 Gradation 6,144

TC-P**U1 TC-P**U2

X.V. Color Added Game mode Added Power Consumption -40%

TC-P**X1 TC-P**X2

TC-P**X14 TC-P**PX24

TC-P**C1 TC-P**C2

Panel NeoPDPeco Panel Resolution 1024X768 (*1) Native contrast Infinite:1 Gradation 6,144 X.V. Color Added HDMI input 2 (*2) Power Consumption -40%

Panel NeoPDPeco Panel Resolution 1024X768 (*1) Native contrast Infinite:1 Gradation 6,144 X.V. Color Added Power Consumption -40%

Panel NeoPDPeco Panel Resolution 1024X768 (*1) Native contrast Infinite:1 Gradation 6,144 Power Consumption -40%

(*1)2009 model is 1,366 x 768.

(*2)2009 model is 3.

(*1)2009 model is 1,366 x 768.

Slide 13

Connectors Location (TC-P42S2)

Slide 14

Boards Description

Board Description Board Description

A Speaker out, Sound Processor, AV Terminal, AV

Switch, DC-DC Converter, Digital Signal

Processor, Microcomputer, HDMI Interface, SD

card slot, Format-Converter, Plasma AI, Sub-

Field Processor, ( Newly Added Key Switch )

C1 Data Drive ( Right ) SC Scan Drive C2 Data Drive ( Left ) SU Scan Out ( Upper )

K Remote Receiver, Power LED SD Scan Out ( Lower )

P Power Supply

42” SM

Boards comparison between 2009 S1 series and 2010 S2 series

2009

⇒

S1 series

SU + SD SM ( only 42inch )

⇒

2010

S2 series

Board

GK + S Delete ( on A board )

⇒

Slide 15

New

TC-P42S2 (FHD Model)

( 42inch only )

SU and SD board are

integrated to SM board

No fans

New

Power SW and

Key Input are

now on the A

board

Slide 16

Technical Changes

The resolution of the 50” HD models has been reduced from 1,366x768 to 1024x768 (Same as the 42” HD models).

TC-P42S2

The Power Switch is located on the A board (G20 and S2 models). The U2, X2, and C2 models still have the power switch on the S board.

The SU and SD boards are now just one board (SM). The TC-P42X2 model combines the SU, SD, and SC boards into just on board (SN). Instead of 30V, SUB5V is used as the Tuner +B. The tuner has a built-in DC-DC Converter. P5V is produced in the A board. (Not in the P board.) The Main CPU and the Front end processor circuit are built into one IC. (Nile-TCON IC8001). IC8001 uses STB3.3V and STB1.2V as VCC. Vset is no longer used on the SC board. P25/A25 connector is deleted

G20/25, VT20 Series

No front glass is used on these models.

Slide 17

Start-up Operation

Standby/Power On

Slide 18

Standby Operation

P9

P

Circuit

STB

STB5V

P7

1 1

5V

A7

3.3V REG

STB5V

3.3V REG

3.3V

POWER SWITCH

IC9003

PANEL

Vcc

Processing

CPU

STB3.3V

MAIN

CPU

Signal

IC8001

A

A1 K1

3 3

K

REMOTE

REC.

LED

Slide 19

Standby Circuit Explanation

When the TV is plugged in: AC is applied to the standby circuit in the power supply to produce STB5V. The STB5V is provided to the A board via connectors P7 (Pin 1). The STB5V from pin1 of connector P7 is applied to a 3.3V regulator to power the Main CPU

(IC8001) on the A board. This energizes and prepare the microprocessor (CPU) for program execution.

The 3.3V from the voltage regulator besides being applied to the CPU, is also applied to the remote control receiver and the power LED on the K board through connector A1/K1 (pin 3).

If the STB5V is missing, the TV is dead (No power)

Slide 20

Power On Operation

P9

P

RELAY

STB

Circuit

Vsus, Vda

STB5V

Power

CPU

F15V

P15V

P7 A7

7 7

55

3.2V

TV_SUB_ON

SUB3.3V,

1.8V,1.2V

3.2V

5V

1 1

P6 A6

77 88

PA4701

99

14.6V F15V

PANEL_MAIN_ON

IC9004

3.3V REG

PANEL_STB_ON

STB5V

IC4700(A)

3.3V REG

IC5606

IC5610

3.3V

STB3.3V

3.3V

10 blinks

SOS Detect

SUB1.8V

SUB1.2V

SUB5V

IC9003

PANEL

Vcc

KEY_INPUT

Processing

CPU

IC8001

MAIN

Signal

IC4700(B)

Detect

A

CPU

TUNER

A

A1 K1

3 3

6

5 5

Voltage Drop

Error Detect

K

6

POWER SWITCH

REMOTE

REC.

LED

IC5608

SUB3.3V

Slide 21

Power On Circuit Explanation

The power command from the power switch on the A board or the remote control receiver on the K board is provided to the Main CPU on the A board (IC8001). The CPU on the A board outputs the “TV_SUB_ON” Command (3.2V) and the PANEL_STB_ON” command (3.2V).

The “TV_SUB_ON” command is provided to pin 5 of connector P7 of the power supply

to develop the F+15V. At this time, the relays on the power supply are triggered and a “click” sound can be heard.

The F+15V from the P board is applied to several voltage regulator (IC5608- IC5610, and

IC5606) on the A board. The voltage output from these ICs are SUB5V, SUB1.8V, and SUB1.2V respectively. They are used by various circuits on the A board. To avoid catastrophic failures, they are monitored by an SOS Detect circuit (IC4700) for over-voltage and over-current conditions. Any abnormalities of the SUB5V, SUB1.8V, or SUB1.2V triggers the SOS circuit. The TV shuts down and the power LED blinks 10 times.

The “PANEL_STB_ON” is used to turn on the 3.3V regulator (IC9004) on the A board.

The output voltage is applied to the “Panel CPU” on the A board. The Panel CPU on the A board outputs the “PANEL_MAIN_ON” Command (3.2V) to pin 7 of connector P7 on the P board. The “PANEL MAIN ON” command turns on the power supply circuit that outputs the Vsus, Vda, and 15V.

Slide 22

CPU Commands Explanation

TV SUB ON (F-STBY-ON), PANEL-STB-ON, PANEL MAIN ON, and DISPEN.

The “TV Sub On” The CPU on the A board outputs the

“TV_SUB_ON” Command (3.2V) when the power is turned on. This command is used to turn on the circuit in the power supply that generates the F+15V.

The F+15V is provided to the A to generate the Sub-voltages used by the signal process circuit. When the output of the Sub-voltages is confirmed by the system MPU, it outputs the “Panel STB On” command. The “Panel STB On” (3.2V) command is used to energize the panel MPU IC. When the panel MPU is energized, it outputs the “Panel Main On” command.

A7

A

5

7

PANEL_MAIN_ON

TV_SUB_ON

IC9004

RESET

3.3V

IIC-SW

P_ON/OFF

IC9003

panel

pane

uCOM

l

IC8001-2

Nile-

TCON

(SYSTE

M CPU)

DISPEN

The “Panel Main On” (3.2V) command is applied to the power supply to turn on the circuits that generate the Vsus, Vda, P15V.

The “Dispen” (Display Enable) command is applied to the Discharge Control/Sub-field Conversion IC (IC9300) to begin panel drive operation and video display.

PANEL_STBY_ON

PANEL_VCC_ON

Slide 23

P

STB5V

P7

Supply Voltages (Sub Voltages) For Video Processing Circuit

A7

5

IC4700

1

STB5V

1

RESET

3.3V

TV_SUB_ON

MCU_XRST (STB_RST )

3

2

STB3.3V

IC5601

STB reset

5

4

IC8001-1

Nile-TCON

(SYSTEM

CPU)

A

F+15V

P6

5V

IC8004

EEPROM

IC8502 Flash ROM

Flash ROM

IC8002

DDR2

SUB5V

IC5609

3.3V

IC5607

3.3V

IC5605

3.3V

IC5613

3.3V

Power Switch

DDR_VCC_POST =SUB1.8V

SUB1.2V

SUB3.3V_A

3.3V

SUB3.3V_HDMI

3.3V

SUB3.3V

3.3V

SUB3.3V_SD

3.3V

SUB5V

STB3.3V

SUB3.3V

IC2106-1

AMP

IC8503 EEPROM

EEPROM

IC4701 TEMP sense

TEMP se

JK8502

4

TU8302

TUNER

LED/

Remote

A1

3 1

nse

SD card SLOT

IC9004

RESET

A6

7

8

9

#

= Steps

F+15V

6

RESET

3.3V

IIC-SW

PA4701 (Fuse)

F15V

IC5610

1.8V

IC5606

1.2V

IC5608

5V

SUB5V / SUB5V_TUNER

Sub-Voltages Distribution Explanation

AC is applied to the standby circuit in the power supply to produce STB5V when the TV is plugged in.

The STB5V is provided to the A board via connectors P7 (Pin 1).

1

2

3

 The power command from the power switch on the A board or the remote control receiver

4



 The CPU on the A board outputs the “TV_SUB_ON” Command (3.2V)

5

 The F+15V from the P board is applied to several voltage regulator (IC5608- IC5610, and

6

The STB5V from pin1 of connector P7 is applied to a 3.3V regulator to power the Main CPU (IC8001) on the A board. This energizes and prepare the microprocessor (CPU) for program execution.

The 3.3V from the voltage regulator besides being applied to the CPU, is also applied to the remote control receiver and the power LED on the K board through connector A1/K1 (pin 3).

The reset pulse from IC4700 is applied to the Main CPU (IC8001) for program execution.

on the K board (Not shown on the schematic) is provided to the Main CPU on the A board (IC8001).

The “TV_SUB_ON” command is provided to pin 5 of connector P7 of the power supply to develop the F+15V. At this time, the relays on the power supply are triggered and a “click” sound can be heard.

IC5606) on the A board. The voltage output from these ICs are SUB5V, SUB1.8V, and SUB1.2V respectively. These voltages are used by the signal processing circuit in the

A board.

The circuit responsible for processing the signal is now ready. All the necessary voltages are present.

Slide 25

P

STB5V

SND15V

P15V

11a

11b

VSUS

Vda

Supply Voltage (P15V) For 1

A7

P7

5

IC4700

RESET

3.3V

IC9004

RESET

3.3V

IIC-SW

3.3V

CE(STB_D3.3V output)

DCDC_OE

13

P6

1

7

A6

1

2

3

A20

29

30

1

STB5V

IC2106-2

AMP

P15V

P15V P5V

10

PANEL_MAIN_ON

SND15V

11

st

Stage of Panel Drive Circuit

TV_SUB_ON

MCU_XRST (STB_RST )

STB3.3V

IC9003

9

12

NRST

P_ON/OFF

STB_D3.3V

uCOM

8

IC9001

EEPROM

IC9803

3.3V

IC9800

1.2V

IC9801

5V

P5V / P5V_DCDC

panel

uCOM

P3.3V

P1.2V

PANEL_READY

XRST

DRVRST

PANEL_STBY_ON

P3.3V

IC9400

Buffer

IC9401

Buffer

IC8001-2

16

14

15

/PANEL_VCC_ON

IC9304

EEPROM

IC9300 Discharge control

Discharge control

Sub-field Conv.

IC9402

Buffer

Nile-

TCON

(SYSTEM

CPU)

7

DISPEN

17

Panel drive /

Picture signal

18

A

A31

66

67 68

66 68

A32

Panel Drive Circuit Supply Voltages

When the output of the Sub-voltages is confirmed by the system MPU,

7

The System CPU outputs the “Panel STB On/Panel VCC On” command to IC9004.

8 9

10

11

12

13

14

15

When Panel STB On command is applied to IC9004, STB3.3V is developed. Reset (NRST) is also generated by IC9004

When STB3.3V and Reset are applied to the Panel CPU (IC9003), the PANEL MAIN ON command is output to the power supply.

P15V is output from the power supply when it receives the PANEL MAIN ON command.

Vsus and Vda are also output at this point.

11b11a

Right after the PANEL MAIN ON command is output from IC9003, the P_ON/OFF command is also output to IC9004.

IC9004 outputs the ENABLE command to the voltage regulators IC9800, 9801, 9803 to output 3.3V, 1.2V, and 5V respectively.

IC9003 also outputs XRST IC9003 outputs DRVRST (Drive Reset) to reset the drive section of IC9300 and begin

panel drive operation.

16

17

18

PANEL READY from the Panel CPU is output to the System CPU to signal the

beginning of panel drive operation. IC8001 outputs the DISPEN (Display Enable) command to IC9300 to begin panel drive

and picture drive operation. IC9300 outputs the pulses and data necessary to drive the panel and generate video.

Slide 27

Supply voltages (Vsus and Vda) for 2

When the Vsus, Vda, and P15V and all its derivates voltages are present, the panel drive circuit starts to operate.

AC in

nd

Stage of Panel Drive Circuit

TC-P42S2

Relay

Power factor

control

SC SS

Vsus

P35

Vda

1 2

P11

1

SS11

1

SC2

Vsus

P2

11

VSUS

11a

Vda

11b

C1

Vda

C10 C20

1-5

16-20

Vsus

Vda

C25

Vda

1-2

C2

Slide 28

Overview of Voltage Distribution

The voltage distribution to all the boards is illustrated in this block diagram

P3.3V

Drawing is 46inch

50inch: C1-C2 → C1-C3

42inch: SU+SD → SM )

Slide 29

AC input

SU

TC-P42S2

The voltage distribution to all the boards is illustrated in this block diagram

SC

DCDC DCDC

DCDC

5V

SC2

Vsus

(P34)

P6 A6

Power

uCOM

F_STBY

F15V

Stand-by

power

REG

15V

P7

A7

STB5V

STB 5V

Relay

Power factor

control

15V

DC/DC

15V

Vsus

Vda

P35

Vda

P11P2

15V

SC11

SS

DCDC

5V

SD

C1

SC20

15V

5V

A20

F15V

A31

C11

5V

3.3V

STB３．３V

A32

5V

C21

A

Vda

C25

SS33

5V

C23

C2

Slide 30