Polaroid PDP TV PLA4200 Schematic

42” Plasma Color Television

Model: PLA-4200M

Service Manual

PDP TV SERVICE MANUAL

Contents

1.Safety instruction…………………………….……………2

2.Specification………………………………….……………4

3.Signal processing and system block diagram….…………..5

4.Part list ……………………………….…………………….7

5.General assembly drawing …………….………………...10

6.General connection diagram………………………………11

7.Failures analysis…………………………….………….….15

8.Description of main ICs and components ….……………..19

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PDP TV SERVICE MANUAL

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Notice: This service manual is only read and used by

professionals. The repairman should review the part o safety precaution before work.

1.Safety instruction

TO PREVENT POSSIBLE DANGER,DAMAGE, AND BODILY HARM, PLEASE CONSIDER AND OBSERVE ALL CAUTIONS CONTAINED IN THIS PARAGRAPH.

A.Warning

If you don’t consider the following warning before maintenance, it could result in death or serious injury.

(1) The PDP module is controlled by voltage about 350V. If you need to handle the module during operation or just

after power-off, you must take proper precautions against electric shock and never touch the drive circuit

portion and metallic part of PDP module. The capacitors in the drive circuit portion remain temporarily charged even after the power off. After turning off the power, you must be sure to wait at least one minute before touching the module. If the remainder of voltage is strong enough, it could result in electric shock.

(2) Do not use any other power supply voltage than the specified voltage in this product specifications. If you use

deviated power voltage from the specifications, it could result in fire hazard or product failure.

(3) Do not operate or install under the deviated surrounding from the environmental specification such as in

moisture or rain; near water-for example, bath tub, laundry tub, kitchen sink; in a wet basement; or near a swimming pool; and also near fire or heater for example, near or over radiator heat resistor; or where it is exposed to direct sunlight; or somewhere like that. If you use the PDP module in places above, it could result in electric shock, fire hazard or product failure.

(4) If any foreign objects (e.g. water, liquid and metallic chip or dust) entered the PDP module, the power supply

voltage to the PDP module must be turned off immediately. Also never push objects of any kind into the PDP module as they may touch dangerous voltage point or make short circuits that could result in fire hazard or electric shock.

(5) If smoke, offensive smell or unusual noise should come from the PDP module, the power supply voltage to the

PDP module must be turned off immediately.

Also, when the PDP screen cannot display any picture after the power-on or during operation, the power supply must be turned off immediately. Never continue to operate the PDP module under these conditions.

6 Do not disconnect or connect the PDP module’s connector while the power supply is on, or just after power off.

Because the PDP module is operated by high voltage, and the capacitors in drive circuit remain temporarily changed even after the power is turned off. If you need to disconnect it, you have to wait at least one minute after power off.

7 Do not disconnect or connect the power connector by wet hands. The voltage of the product may be strong

enough to cause an electric shock..

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PDP TV SERVICE MANUAL

Do not damage the power cable of the PDP module, also do not modify it.

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When the power cable or connector is damaged or frayed, do not use it.

When the power connector is covered with dust, please wipe it with a dry cloth before the power on.

Caution

If you don’t consider the following cautions, it may result in personal injury or damage to the product.

Do not set the PDP module on an unstable place, vibrating place or inclined place. The PDP module may

fall or drop, and it may cause serious injury to a person, and serious damage to the product.

If you need to remove the PDP module to another place, you must turn off the power supply and detach the

interface cable and power cable from the PDP module, and watch your steps during the work. If the cable has a damage, it may result in fire hazard or electric shock. Also if the PDP module drop or fall, it may result in personal injury.

When you draw or insert the PDP’s cable, you must turn off the power supply and do it with holding the

connector. If you draw the cable, the electric wire in the cable could be exposed or broken. It may result in fire hazard or electric shock.

To carry the PDP module, it be done by two workers in order to avoid unexpected accidents. The PDP module has a glass-plate. If the PDP module is inflicted with excessive stress for example; shock,

vibration, bending and heat-shock, the glass plate could break. It may result in personal injury. And also, do not press or strike the glass surface.

If the glass plate was broken, do not touch it with bare hand. It may result in a cut injury. Do not place any object on the glass plate. It may scratch or break the glass plate. Do not place any object on the PDP module. It may result in personal injury due to its fall or drop.

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PDP TV SERVICE MANUAL

2.Specifications

Type System of the broadcasting System of the video signal Number of stored programs

Scope of the channel Signal intensity Audio input Speaker output

Visual angle (Max) Resolution Power supply Energy consumption Dimensions (W*H*D) Size of screen Aspect ration Weight Ambient temperature Ambient humidity Ambient air pressure

PLA-4200M NTSC-M PAL/NTSC/SECAM 125 Air: CH2 to CH69, Cable: CATV1 to CATV125 70dB Input impedance>10k , Input voltage 0.1-0.5 V(rms) 2*5W 160 852*480 AC 100V-240V (50Hz/60Hz) 350W(typ).3W (stand by)

46.1*29.1*5.2 inch 42 inch 16:9 110 lb.

0-35 20%-70%RH 86-106Kpa

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PDP TV SERVICE MANUAL

UV UV

G(0,7)

V

N

V

N

V +9V

N

V

5V

S

scale CC

3.Signal processing and system block diagram

A. Image signal processing block diagram

U202

AD9883A

A/D Convertor

U301 Y U302

VPC3230

Decoder

Digital RGB

De-interlace

Y

PW1230

VGA IN

S-VHS IN

1 I 2 I

J201

R G B H V

J4

J3

U101 U531

PW166B

THC63LVD823

LVD

U31

SST39VF800A

Flash

AC Card

+

PDP

Panel

AMP

+12

YCbCr IN

Cable/air IN

A1 I

A2 I

TCPN9082DC

27D(T)

TUNER

EXT Audio IN

VIDEO OUT

U1

Zilog Z86229

V-Chip

D

MEMORY

BUFFER

U3

MTS Process

U303

+12

TDA8944

Audio Amp

DC/DC

U4

+

+3..3V

Speaker

5

B. PDP DISPLAY SCREEN BLOCK DIAGRAM

PDP TV SERVICE MANUAL

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PDP TV SERVICE MANUAL

4.Part list

Part Number Description Qty.

A904008 1

Included in A904008

SPW5.069.166

SPW5.969.003

A920008

B135011 SPW8.339.008

E143221JF

E143222JH

E143461 16

E143463

E144231 30

E144431

E690220 16

E690221

E690223 15

E690230

E690420 14

E690660 10

E690670 4

S070183

G330170

Polaroid PLA-4200M Plasma Display Panel

Polaroid PLA-4200M Cable L=150mm

Polaroid PLA-4200M YPbPr Circuit Board

Polaroid PLA-4200M Remote Control Circuit Board

Polaroid PLA-4200M Zinnia PDP Control Circuit Board

Polaroid PLA-4200M Main Power Button Polaroid PLA-4200M Tapping Screw ST3*8F

Polaroid PLA-4200M Tapping Screw ST3*8 (black)

Polaroid PLA-4200M Tapping Screw ST4*16

Polaroid PLA-4200M Tapping Screw ST4*16 (black)

Polaroid PLA-4200M Tapping Screw ST3*10

Polaroid PLA-4200M Tapping Screw ST4*10

Polaroid PLA-4200M SEMS Screw M3*8

Polaroid PLA-4200M SEMS Screw M3*8 (black)

Polaroid PLA-4200M SEMS Screw M3*10

Polaroid PLA-4200M SEMS Screw M4*8

Polaroid PLA-4200M SEMS Screw M6*16 (black)

Polaroid PLA-4200M SEMS Screw M6*20 (black)

Polaroid PLA-4200M Power Switch KDC-A04-1

Polaroid PLA-4200M Remote Control

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2

6

3

6

2

1

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4.Part list

PDP TV SERVICE MANUAL

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4.Part list

PDP TV SERVICE MANUAL

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5.General assembly drawing

PDP TV SERVICE MANUAL

10

r

CN6

J6 J7 J

ower J

ower CN6

CN

6.General connection diagram

W2

PDP TV SERVICE MANUAL

7-31

X1001 Receiving Unit fo Remote control

SPW.5.969.003

W17 6-15

1

15

J5 (LVDS 1/F)

(TTL 1/F)

Main board

(OSD)

(DV1)

J8

12

31 1

1

Connector

CN1

CN2

Tuner board

13

1

P

1 9

2

P

1 6

1

W3

4-6

W5

W4 2-13

1-9

LA03

CON8011

CON8009

Plasma Display Panel

S42SD-YD

Power filter board

5-3

CN8702

CN8701

CON8002

Right

Speaker

YPbPr Board

3-12

YPbPr Socket

SPW5.069.166

Left

9-1

16-1

Speaker

11

SWITCH

220V~IN

Power supply socket

5-3

PDP TV SERVICE MANUAL

B. Input Power Voltage Source and Pin Assignment

Connector Name: SA J1(W4)

to The Image Board

Pin no Voltage Source Usage

1 5Vsb Vcc5-SB-PDP 2 GND GND 3 GND-D GND 4 B5d1 NC 5 RELAY PDP-RELAY 6 TH-DET NC 7 FAN-DET NC 8 GND-A GND

9 GND-A GND 10 NC NC 11 V12A NC 12 V5a Vcc5-PDP 13 NC NC

Pin no Voltage Source Usage

Connector Name: AUDIO J2(W5)

to The Audio Amp Board

1 V5A Vcc5-PDP

2 GND-A GND

3 12VCC Vcc12-FAN

4 V9A Vcc9-PDP

5 GND-A GND

6 24Vsp Vcc12-AUD-PDP

7 24Vsp Vcc12-AUD-PDP

8 GNDS GND-AUD

9 GNDS GND-AUD

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PDP TV SERVICE MANUAL

Pin no

Connector Name:

Usage

OSD(W17)

1 Vcc5 2 KPAD0 3 KPAD1 4 KPAD2 5 KPAD3 6 LED-RED 7 LED-GREEN 8 Vcc5-SB

9 GND 10 POWER-SW 11 IR 12 KPAD4 13 KPAD5 14 KPAD6 15 KPAD7

Connector Name:

SPEAKER(W3)

Pin no

1 SPEAKER-SW 2 SPK-OUT13 SPK-OUT1+ 4 GND 5 SPK-OUT26 SPK-OUT2+

Usage

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7.Failures analysis

PDP TV SERVICE MANUAL

Without raster

Judge input voltage and frequency whether they are right

Judge whether this product is in standb mode by remote control

Check whether the

current receive signal is right

input the voltage an frequency according to the specification

Press power key to turn on

Check the external signal source

Turn off for 2 minutes, then turn on again to check whethe

the picture emerges

Open the rear cover then ente

power-on mode to check the

CON8002-220v voltage of PDP

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if it is ok, maybe failure results from poor contact

Replace power suppl switch or filter wit poor performance

PDP TV SERVICE MANUAL

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f

Check the output voltage CON8011 / CON8009 o power board

Check the input voltage J1 / J3 connector of main board

Check the supply voltages o mainboard:Vcc5-SUB(IC-U 15-4#),Vcc3(IC-U8-2#)

Check and repai display screen powe board voltage

Check and transpose the line of connector

Check OR transpose U15-1.#IN , D1,CE21,CE26. U8-2#IN, C198, CE33.

heck or transpose

C

the signal data line of connector

check and transpose the main board

check the driver board of PDP display screen, and the slices of soft IC etc.

Check the other circuits

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PDP TV SERVICE MANUAL

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Display image but without sound

Turn on to chec whether there is noise

exchange tuner board

Check whether the volume is correctly set

Read the operating instruction, and set the volume again

Check J7 waveform of Speaker's audio output

Check and exchange speaker

Check IC U4 whether input or output signal is ok.

Check and exchange IC U4

Check IC U3 Whether input-60#/output-27# 28# signal is OK

Check and exchange IC U3

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PDP TV SERVICE MANUAL

r

d

Check whether there is audio output in connecto CN1/CN2- 40#pin

Check and exchange the connecto which is not good.

Check whether there is

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audio output in tuner boar (U5-14#)

Exchange the tuner board

or the tuner.

d

a

k

d d

8.Description of main ICs and components

(1) M52790SP/FP

PDP TV SERVICE MANUAL

AV SWITCH with I

2

C BUS CONTROL

DESCRIPTION

The M52790 is AV switch semiconductor integrate circuit with I2C bus control . This IC contains 2-channels of 4-input audio switches an 2-channels of 4-input video switches. Each channel can be controled independently . The video switches contain amplifiers can be controled gain of output 0dB or 6dB .

FEATURES

•Video and stereo sound switches in one package

•Wide frequency range (video switch) ...........DC-20MHz

•High separation ( video switch ).................Crosstal

-60dB ( typ. ) at 1MHz

•Two types of packages are provided : SDIP with a lea pitch of 1.778mm ( M52790SP ) ; and SSOP with a lea pitch of 0.8mm ( M52790FP ) .

APPLICATION

Video equipment

RECOMMENDED OPERATING CONDITION

Supply voltage 4.7V ~ 9.3V Rated supply voltage 5V,9V Maximum output current 63mA(at 9V)

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PDP TV SERVICE MANUAL

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PDP TV SERVICE MANUAL

(2) MSP3450G

Multistandard Sound Processor Family

Release Note: Revision bars indicate significant changes to the previous edition. The hardware and software description in this document is valid for the MSP 3450G version B5 and following versions.

Introduction

The MSP 3450G family of single-chip Multistandard Sound Processors covers the sound processing of all analog TV-Standards worldwide, as well as the NICAM digital sound standards. The full TV sound processing, starting with analog sound IF signal-in, down to processed analog AF-out, is performed on a single chip. Figure4 shows a simplified functional block diagram of the MSP 3450G. This new generation of TV sound processing ICs now includes versions for processing the multichannel television sound (MTS) signal conforming to the standard recommended by the Broadcast Television Systems Committee (BTSC). The DBX noise reduction, or alternatively, MICRONAS Noise Reduction (MNR) is performed alignment free. Other processed standards are the Japanese FM-FM multiplex standard (EIA-J) and the FM Stereo Radio standard. Current ICs have to perform adjustment procedures in order to achieve good stereo separation for BTSC and EIA-J. The MSP 3450G has optimum stereo performance without any adjustments. All MSP 3450G versions are pin and software downward-compatible to the MSP 3450D. The MSP 34x0G further simplifies controlling software. Standard selection requires a single I The MSP 34x0G has built-in automatic functions: The IC is able to detect the actual sound standard automatically (Automatic Standard Detection). Furthermore, pilot levels and identification signals can be evaluated internally with subsequent switching between mono/ stereo/bilingual; no I The ICs are produced in submicron CMOS technology. The MSP 34x0G is available in the following packages: PLCC68, PSDIP64, PSDIP52, PQFP80, and PLQFP64.

2C interaction is necessary (Automatic Sound Selection).

2C transmission only.

Fig. 4: Simplified functional block diagram of the MSP 3450G

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PDP TV SERVICE MANUAL

(3) VPC323OD

PRELIMINARY DATA SHEET

Comb Filter Video Processor Introduction

The VPC 3230D is a high-quality, single-chip video front-end, which is targeted for 4:3 and 16:9, 50/60-Hz and 100/120 Hz TV sets. It can be combined with other members of the DIGIT3000 IC family (such as DDP 331x) and/or it can be used with 3rd-party products. The main features of the VPC 3230D are – high-performance adaptive 4H comb filter Y/C separator with adjustable vertical peaking – multi-standard color decoder PAL/NTSC/SECAM including all substandards – four CVBS, one S-VHS input, one CVBS output – two RGB/YC – integrated high-quality A/D converters and associated clamp and AGC circuits – multi-standard sync processing – linear horizontal scaling (0.25 ... 4), as well as non-linear horizontal scaling ‘Panoramavision’ – PAL+ preprocessing – line-locked clock, data and sync, or 656-output interface – peaking, contrast, brightness, color saturation and tint for RGB/YC – high-quality soft mixer controlled by Fast Blank – PIP processing for four picture sizes (1/4,1/9,1/16, or1/36 of normal size) with 8-bit resolution – 15 predefined PIP display configurations and expert mode (fully programmable) – control interface for external field memory

2

– I

C-bus interface – one 20.25-MHz crystal, few external components – 80-pin PQFP package

System Architecture

Fig.5 shows the block diagram of the video processor

rCb component inputs, one Fast Blank (FB) input

rCb and CVBS/S-VHS

Fig. 5: Block diagram of the VPC 3230D

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Pin Configuration

PDP TV SERVICE MANUAL

Fig.6: 80-pin PQFP package

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(4) Z86229 NTSC LINE 21 CCD DECODER

PDP TV SERVICE MANUAL

GENERAL DESCRIPTION

Capable of processing Vertical Blanking Interval (VBI) data from both fields of the video frame in data, the Z86229 Line 21 Decoder offers a feature-rich solution for any television or set-top application. The robust nature of the Z86229 helps the device conformto the transmission format defined in the Television Decoder Circuits Act of 1990, and in accordance with the Electronics Industry Association specification 608 (EIA–608). The Line 21 data streamcan consistof data fromseveral data channels multiplexed together. Field 1 consists of four data channels: two Captions and two Texts. Field 2 consists of five additional data channels: two Captions, two Texts, and Extended Data Services (XDS). The XDS data structure is defined in EIA–608. The Z86229 can recover and display data transmitted on any of these nine data channels.

2

The Z86229 can recover and output to a host processor via the I

C serial bus. The recovered XDS data packet is further defined in the EIA–608 specification. The on-chip XDS filters in the Z86229 are fully programmable, enabling recovery of only thoseXDSdata packets selected by the user. This functionality allows the device to extract the required XDS information with proper XDS filter setup for compatibility in a variety of TVs, VCRs, and Set-Top boxes. In addition, the Z86229 is ideally suited to monitor Line 21 video displayed in a PiP window for violence blocking, CCD, and other XDS data services.

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