Panasonic TH-50PV80AZA, TH-50PX80AA Schematic

ORDER NO.PPDS080883CE

Plasma Television

Model No. TH-50PV80AZA

TH-50PX80AA

GPH11DA Chassis

1 Safety Precautions

1.1. General Guidelines

1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

4. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

5. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

6. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1.2. Touch-Current Check

1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.

2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1.

3. Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.

4. Check each exposed metallic part, and measure the voltage at each point.

5. Reserve the AC plug in the AC outlet and repeat each of the above measure.

6. The potential at any point (TOUGH CURRENT) expressed as voltage U

For a. c.: U1 = 35 V (peak) and U2 = 0.35 V (peak);

For d. c.: U

Note:

The limit value of U

mA d. c. The limit value U

7. In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to the customer.

= 1.0 V,

= 0.35 V (peak) for a. c. and U1 = 1.0 V for d. c. correspond to the values 0.7 mA (peak) a. c. and 2.0

= 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.

and U2, does not exceed the following values:

Figure 1

2Warning

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor [chip] components. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi- num foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as [anti-static (ESD protected)] can generate electrical charge sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara- ble conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed.

Caution

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise ham less motion such as the brush- ing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device).

2.2. About lead free solder (PbF)

Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu). That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.

This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d suggest the use of Pb free solder as well, although Pb solder may be used.

PCBs manufactured using lead free solder will have the PbF within a leaf Symbol PbF stamped on the back of PCB.

Caution

• Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40 °C) higher. Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).

• Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C). If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb sol- der. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.

• After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto the opposite side. (see figure below)

Suggested Pb free solder

There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder. How- ever, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.

3 Service Navigation

3.1. Important Notice

3.1.1. Model Name Identification

1. Model number is indicated the previous model number and space with A name plate as shown in figure.

2. TH-50PV80AZ or TH-50PX80A will be discontinued and TH-50PV80AZA or TH-50PX80AA will be introduced from Aug/2008.

3.2. Different P.C.B.

Parts No. Parts name & Description Remarks TH-50PV80AZ, PX80A TH-50PV80AZA, PX80AA TZTNP01RQTA TZTNP01BCUA CIRCUIT BOARD A AA TZTNP01RQTP TZTNP01BCUP CIRCUIT BOARD A AZA N0AE6JL00002 LSEP1260MYHB CIRCUIT BOARD P

TNPA4432 CIRCUIT BOARD C1 TNPA4433 CIRCUIT BOARD C2 TNPA4434 CIRCUIT BOARD C3

TNPA4393 TXNSC1BCUC CIRCUIT BOARD SC

TNPA4398 CIRCUIT BOARD SD

TNPA4394 TXNSS1BCUC CIRCUIT BOARD SS

TNPA4395 CIRCUIT BOARD SS2 TNPA4396 CIRCUIT BOARD SS3 TNPA4397 CIRCUIT BOARD SU

TXN/G1RRTC CIRCUIT BOARD G

TXNGH1RRTC CIRCUIT BOARD GH

TXNGS1RRTC TNPA4139AE CIRCUIT BOARD GS

TXN/K1RRTC CIRCUIT BOARD K TXN/S1RRTC CIRCUIT BOARD S

3.3. Service Hint

Board Name Function Board Name Function

P Power Supply C1 Data Driver (Lower Right) A DC-DC Converter

Speaker out, Sound Processor AV Termin a l , AV Swi t c h Digital Signal Processor, Micon, HDMI Interface Peaks Lite 2p Format Converter, Plasma AI, Sub-Field Processor

K Remote receiver, Power LED G Key Switch, Front Terminal

S Power Switch GS SD Card Slot SS2 Sustain out (Upper) GH HDMI3 SS3 Sustain out (Lower)

C2 Data Driver (Lower Center) C3 Data Driver (Lower Left) SC Scan Drive SU Scan out (Upper) SD Scan out (Lower) SS Sustain Drive

3.4. Applicable signals

4 Specifications

Power Source AC 220 - 240 V, 50/60 Hz Power Consumption

Average use 500 W Standby condition 0.5 W

Plasma Display panel

Aspect Ratio 16:9 Visible screen size 127 cm (diagonal)

1,106 mm (W) × 622 mm (H)

Number of pixels 1,049,088 (1,366 (W) × 768 (H)) [4,098 × 768 dots]

Sound

Speaker 160 mm × 42 mm × 2 pcs, 8 Ω Audio Output 20 W (10 W + 10 W), 10% THD Headphones M3 (3.5 mm) stereo mini Jack × 1

PC signals VGA, SVGA, XGA

SXGA .......(compressed)

Horizontal scanning frequency 31 - 69 kHz

Vertical scanning frequency 59 - 86 Hz Receiving Systems / Band name PAL B/G Reception of Off air broadcasts (AA model) DVB-T 7 MHz VHF / UHF (Australia) free-to-air TV broadcast reception

PAL 60 Hz Playback of NTSC tape from some PAL Video recorders (VCR)

M.NTSC Playback from M. NTSC Video recorders (VCR)

NTSC Playback from NTSC Video recorders (VCR) Receiving Systems / Band name

(AZA model)

Receiving Channels

(Regular TV) (AZA model)

Aerial - Rear VHF/UHF (AZA model), Standard Belling & Lee connector (AA model) Operating Conditions

Connection Terminals

AV1 Input

AUDIO L - R RCA PIN Type × 2 0.5 V [rms] VIDEO RCA PIN Type × 1 1.0 V [p-p] (75 Ω) COMPONENT Y 1.0 V [p-p] ((including synchronization)

AV2 Input

AUDIO L - R RCA PIN Type × 2 0.5 V [rms] VIDEO RCA PIN Type × 1 1.0 V [p-p] (75 Ω) COMPONENT Y 1.0 V [p-p] ((including synchronization)

AV3 Input

AUDIO L - R RCA PIN Type × 2 0.5 V [rms] VIDEO RCA PIN Type × 1 1.0 V [p-p] (75 Ω) S VIDEO Mini DIN 4-pin Y:1.0 V [p-p] (75 Ω) C:0.286 V [p-p] (75 Ω)

VHF BAND

2 - 12 (PAL/SECAM B, K1)

0 - 12 (PAL B AUST.)

1 - 9 (PAL B N.Z.)

1 - 12 (PAL/SECAM D)

1 - 12 (NTSC M Japan)

2 - 13 (NTSC M USA)

CATV

S1 - S20 (OSCAR)

1 - 125 (USA CATV)

C13 - C49 (JAPAN)

S21 - S41 (HYPER)

Z1 - Z37 (CHINA)

5A, 9A (AUST.)

Temperature: 0 °C - 35 °C

Humidity: 20 % - 80 % RH (non-condensing)

, PR/C

B/CB

, PR/C

UHF BAND

21 - 69 (PAL G, H, I/SECAM G, K, K1) 28 - 69 (PAL B AUST.) 13 - 57 (PAL D, K) 13 - 62 (NTSC M Japan) 14 - 69 (NTSC M USA)

± 0.35 V [p-p]

AV4 I n p u t

AUDIO L - R RCA PIN Type × 2 0.5 V [rms] VIDEO RCA PIN Type × 1 1.0 V [p-p] (75 Ω) S VIDEO Mini DIN 4-pin Y:1.0 V [p-p] (75 Ω) C:0.286 V [p-p] (75 Ω)

Monitor Output

AUDIO L - R RCA PIN Type × 2 0.5 V [rms] (high impedance) VIDEO RCA PIN Type × 1 1.0 V [p-p] (75 Ω)

Others

HDMI1 / 2 / 3 Input TYPE A Connectors This TV supports [HDAVI Control 3] function. PC Input HIGH-DENSITY D-SUB 15PIN R, G, B/ 0.7 V [p-p] (75 Ω)

HD, VD/TTL Level 2.0 - 5.0 V [p-p] (high impedance)

Card slot SD Card slot × 1 DIGITAL AUDIO OUT

(AA model)

Dimensions (W × H × D) 1,210 mm × 844 mm × 387 mm (With Pedestal)

Mass 38.0 k Net (With Pedestal)

PCM/Dolby Digital, Fiber optic

1,210 mm × 790.5 mm × 95 mm (TV only)

36.0 k Net (TV only)

Note

• Design and Specifications are subject to change without notice. Mass and Dimensions shown are approximate.

5 Service Mode

5.1. How to enter into Service Mode

While pressing [VOLUME ( - )] button of the main unit, press [0] button of the remote control three times within 2 seconds.

5.1.1. Key command

[1] button...Main items Selection in forward direction [2] button...Main items Selection in reverse direction [3] button...Sub items Selection in forward direction [4] button...Sub items Selection in reverse direction [RED] button...All Sub items Selection in forward direction [GREEN] button...All Sub items Selection in reverse direction [VOL] button...Value of sub items change in forward direction ( + ), in reverse direction ( - )

5.1.2. Contents of adjustment mode

• Value is shown as a hexadecimal number.

• Preset value differs depending on models.

• After entering the adjustment mode, take note of the value in each item before starting adjustment.

5.1.3. How to exit

Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

5.2. Service tool mode

5.2.1. How to access

1. Select [SRV-TOOL] in Service Mode.

2. Press [OK] button on the remote control.

5.2.2. Display of SOS History

SOS History (Number of LED blinking) indication. From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment. This indication will be cleared by [Self-check indication and forced to factory shipment setting].

5.2.3. POWER ON TIME/COUNT

Note : To display TIME/COUNT menu, highlight position, then press MUTE for 3sec. Time : Cumulative power on time, indicated hour : minute by decimal Count : Number of On times by decimal Note : This indication will not be cleared by either of the self-checks or any other command.

5.2.4. Exit

1. Disconnect the AC cord from wall outlet.

5.3. Hotel mode

1. Purpose Restrict a function for hotels.

2. Access command to the Hotel mode setup menu In order to display the Hotel mode setup menu, please enter the following command (within 2 second). [TV] : Vol. [Down] + [REMOTE] : AV (3 times)

Then, the Hotel mode setup menu is displayed.

3. To exit the Hotel mode setup menu Disconnect AC power cord from wall outlet.

4. Explain the Hotel mode setup menu

item Function Hotel Mode Select hotel mode ON/OFF Initial INPUT Select input signal modes.

Set the input, when each time power is switched on. Selection : Off/TV/AV1/AV2/AV3/AV4/PC/HDMI1/HDMI2/ HDMI3

• Off: give priority to a last memory. However, Euro model is compulsorily set to TV.

• AVnS/AVnC: only Euro model selectable

• PC: selectable with VGA option

Initial POS Select programme number.

Selection : Off/0 to 99

• Off: give priority to a last memory

Initial VOL level Adjust the volume when each time power is

switched on. Selection/Range : Off/0 to 63

• Off: give priority to a last memory

Maximum VOL level

Button lock Select local key conditions.

Remote lock Select remote control key conditions.

Adjust maximum volume. Range : 0 to 100

Selection : Off/SETUP/MENU/All

• Off: altogether valid

• SETUP: only F-key is invalid (Tuning guide(menu) can not be selected.)

• MENU: only F-key is invalid (only Volume/Mute can be selected.)

• ALL: altogether invalid.

Selection : Off/SETUP/MENU

• Off: altogether valid

• SETUP: only Setup menu is invalid

• MENU: Picture/Sound/Setup menu are invalid

6 Troubleshooting Guide

Use the self-check function to test the unit.

1. Checking the IIC bus lines

2. Power LED Blinking timing

6.1. Check of the IIC bus lines

6.1.1. How to access

Self-check indication only: Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds. Self-check indication and forced to factory shipment setting: Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote con-

trol for more than 3 seconds.

6.1.2. Screen display

6.1.3. Check Point

Confirm the following parts if NG was displayed.

6.1.4. Exit

Disconnect the AC cord from wall outlet.

6.2. Power LED Blinking timing chart

1. Subject Information of LED Flashing timing chart.

2. Contents When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.

6.3. No Power

First check point There are following 2 states of No Power indication by power LED.

1. No lit

2. Red is lit then turns red blinking a few seconds later. (See 6.2.)

6.4. No Picture

6.5. Local screen failure

Plasma display may have local area failure on the screen. Fig-1 is the possible defect P.C.B. for each local area.

Fig-1

7 Disassembly and Assembly Instructions

Caution:

Exchange printed circuit board after confirm parts number.

7.1. Remove the Back cover

1. See Service Hint (Section 3)

7.2. Remove the Rear Terminal cover

1. Remove the screws (×2 , ×2 ).

2. Remove the rear terminal cover.

7.3. Remove the P-Board

Caution:

To remove P.C.B. wait 1 minute after power was off for dis- charge from electrolysis capacitors.

1. Unlock the cable clampers to free the cable.

2. Disconnect the connectors (P2, P6, P7, P9, P11, P12 and P25).

3. Remove the screws (×10 ) and remove the P-Board.

7.4. Remove the Tuner unit

1. Unlock the cable clampers to free the cable.

2. Disconnect the connectors (A1, A7, A11, A12, A20, A25, A31, A32, A51, A52).

3. Remove the screws (×4 , ×1 ) and remove the tuner unit.

7.5. Remove the A-Board

1. Remove the tuner unit. (See section 7.4.)

2. Remove the screws (×7 ) and remove the A-Board.

7.6. Remove the SU-Board

1. Remove the flexible cables (SU1, SU2, SU3 and SU4) connected to the SU-Board.

2. Remove the flexible cable (SU11-SD11) and the bridge connector (SC41-SU41).

3. Remove the molding prop (×1 ).

4. Remove the screws (×2 , ×2 ) and remove the SU- Board.

7.7. Remove the SD-Board

1. Remove the flexible cables (SD1, SD2, SD3 and SD4) connected to the SD-Board.

2. Remove the flexible cable (SU11-SD11) and the bridge connectors (SC42-SD42 and SC46-SD46).

3. Remove the molding prop (×1 ).

4. Remove the screws (×2 , ×2 ) and remove the SD- Board.

7.8. Remove the SC-Board

1. Remove the SU-Board and SD-Board. (See section 7.6. and 7.7.)

2. Unlock the cable clampers to free the cable.

3. Disconnect the connector (SC2).

4. Disconnect the flexible cable (SC20).

5. Remove the screws (×6 ) and remove the SC-Board.

7.10. Remove the SS3-Board

1. Disconnect the connector (SS03) and disconnect the flexible cable (SS57).

2. Remove the screws (×2 ) and remove the SS3-Board.

7.11. Remove the SS-Board

1. Unlock the cable clampers to free the cable.

2. Disconnect the connectors (SS02 and SS03).

3. Disconnect the connectors (SS11, SS12, SS23 and SS34).

4. Disconnect the flexible cables (SS54 and SS55).

5. Remove the molding prop (×1 ).

6. Remove the screws (×5 ) and remove the SS-Board.

7.9. Remove the SS2-Board

1. Disconnect the connector (SS02) and disconnect the flex- ible cable (SS52).

2. Remove the screws (×2 ) and remove the SS2-Board.

7.12. Remove the Stand brackets

1. Remove the Plasma panel section from the servicing stand and lay on a flat surface such as a table (covered) with the Plasma panel surface facing downward.

2. Remove the Stand brackets (L, R) fastening screws (×5

each) and remove the Stand brackets (L, R).

7.13. Remove the C1-Board

1. Remove the tuner unit. (See section 7.4.)

2. Remove the Stand bracket R. (See section 7.12.)

3. Remove the flexible cables holder fastening screws (×10

4. Disconnect the flexible cables (CB1, CB2, CB3, CB4 and CB5).

5. Disconnect the flexible cables (C10 and C11).

6. Remove the screws (×6 ) and remove the C1-Board.

7.15. Remove the C3-Board

1. Remove the tuner unit. (See section 7.4.)

2. Remove the flexible cables holder fastening screws (×6

3. Disconnect the flexible cables (CB9, CB10 and CB11).

4. Disconnect the flexible cable (C32).

5. Disconnect the connector (C33).

6. Remove the screws (×4 ) and remove the C3-Board.

7.16. Remove the Front bracket

1. Unlock the cable clampers to free the cable.

2. Disconnect the connectors (A51). (See section 7.4.)

3. Remove the screws (×2 , ×2 ) and remove the Front bracket.

7.14. Remove the C2-Board

1. Remove the tuner unit. (See section 7.4.)

2. Remove the stand bracket L. (See section 7.12.)

3. Remove the flexible cables holder fastening screws (×6

4. Disconnect the flexible cables (CB6, CB7 and CB8).

5. Disconnect the flexible cables (C20 and C21).

6. Disconnect the connector (C22).

7. Remove the screws (×4 ) and remove the C2-Board.

7.17. Remove the G-Board, GH-

7.19. Remove the Plasma panel sec-

Board and GS-Board

1. Remove the front bracket. (See section 7.16.)

2. Remove the screws (×3 ) and remove the front shield front.

3. Remove the screws (×7 ) and disconnect the connec- tor (G51, GH11 and GS52).

4. Remove the G-Board, GH-Board and GS-Board.

tion from the Cabinet assy (glass)

1. Remove the stand brackets (left, right) fastening screw

(×1 each).

2. Remove the cabinet assy and the plasma panel fastening

screws (×8 ).

7.18. Remove the Speakers

1. Disconnect the relay connectors

2. Remove the screws (×4 each) and remove the Speaker (L, R).

3. For leaving the plasma panel from the front frame, pull the bottom of the cabinet assy forward, lift, and remove.

4. Remove the spacers and spacer rings (×6 ).

Caution:

• Please confirm the installation place of BC hook (L, R) Spacer and Spacer Ring when you exchange the Plasma panel, and install BC hook (L, R) Spacer and Spacer Ring in an original installation place after exchanging the Plasma panel.

7.20. Remove the S-Board

1. Remove the Cabinet assy. (See section 7.19.)

2. Disconnect the connector (S1).

3. Remove the screws (×2 ) and remove the S-Board metal frame.

4. Remove the screws (×2 ) and remove the S-Board.

7.21. Remove the K-Board

1. Remove the Cabinet assy. (See section 7.19.)

2. Remove the S-Board. (See section 7.21.)

3. Remove the screws (×2 ).

4. Disconnect the connector (K1) and Remove the K-Board.

7.22. Replace the plasma panel (fin- ished)

1. Place the new plasma panel (finished) on the flat surface of the table (covered by a soft cloth), with the plasma panel surface facing downward.

2. Attach the C1-Board, C2-Board and the C3-Board, con- nect the flexible cables (×11) from the plasma panel to the C1-Board, C2-Board and the C3-Board, and fit the flexi- ble cable holders.

3. Attach the Hooks (left, right) and fit the stand brackets (L, R) to the new plasma panel.

4. Place the plasma panel section on the servicing stand.

5. Attach the cabinet assy and each P.C.Board and so on, to the new plasma panel.

*When fitting the cabinet assy, be careful not to allow any debris, dust or handling residue to remain between the front glass and plasma panel.

8 Measurements and Adjustments

8.1. Adjustment Procedure

8.1.1. Driver Set-up

8.1.1.1. Item / Preparation

1. Input a white signal to plasma video input.

2. Set the picture controls as follows. Picture menu: Dynamic PNR: OFF Aspect: 16:9

Caution

1. First perform Vsus adjustment.

2. Confirmation of Vscn voltage should be performed after confirmation of Vad adjustment. When Vad=-149V, Voltage of Vscn is -4V ±4V.

8.1.1.2. Adjustments

Adjust driver section voltages referring the panel data on the panel data label. Check or adjust the following voltages with the multimeter.

Name Test Point Voltage Volume Remarks

Vsus TPVSUS

(SS)

Ve TPVE (SS) Ve ± 1V VR16000

Vset TPVSET

(SC)

Vad TPVAD (SC) -149V ± 1V VR16600

Vscn TPVSCN

(SC)

Vda TPVDA (SS) 75V + 1V, -2V Fixed

*See the Panel label.

Vsus ± 2V R628 (P) *

(SS)

320V + 7V, -9V Fixed

(SC)

Vad+145V ± 4V Fixed

8.1.2. P.C.B. (Printed Circuit Board) exchange

8.1.2.1. Caution

1. To remove P.C.B., wait 1 minute after power was off for discharge from electrolysis capacitors.

8.1.2.2. Quick adjustment after P.C.B. exchange

Adjust the following voltages with the multimeter.

P.C.B. Name Test Point Voltage Volume Remarks P Board Vsus TPVSUS (SS) Vsus ± 2V R628 (P) * SC Board Vad TPVAD (SC) -149V ± 1V VR16600 (SC) SS Board Ve TPVE (SS) Ve ± 1V VR16000 (SS) *

*See the Panel label.

Caution:

Absolutely do not reduce Vsus below Ve not to damage the P.C.B.

8.1.3. Adjustment Volume Location

8.1.4. Test Point Location

9 Block Diagram

9.1. Block Diagram (1/5)

SD CARD SLOT

SD CARD I/F

+3.3V(S)

HDMI3 IN

HDMI3

HEADPHONE

KEY

HDMI EQUALIZER

+3.3V(S) +3.3V(S)

FRONT TERMINAL

Y,C , V

AV3

L,R

SPEAKER(R)

SPEAKER(L)

+5V(S)

to/from

SC20

A20

GS52

A52

+3.3V(S)

GH11

A11

+5V(S)

HDMI2

HDMI1

HDMI Rx A/D CONV.

AA ONLY

IFD1/2

Dig/Ana Tuner

G51

A51

MONITOR OUT

A12

SIF,AM

V,Y,PB,PR

L,R

AV1

V,Y,PB,PR

AV2

L,R

Y,C , V

L,R

AV3

R,G,B

Y,C , V

L,R

HP L/R

KEY SCAN

L,R

AUDIO AMP

SOUND+15V

SOUND SOS DET

(LED:12 TIMES)

AA ONLY

DIGITAL AUDIO OUT

from P6, P7

+15V(SOUND)

+5V(STB)

+15V(F_STB)

ALL OFF

VIDEO AUDIO SWITCH

OFDM

L,R

L,R (ATV or DTV)

MONITOR L,R

SOUND_SOS

HDMI

BT+30V

DTV

IECOUT

RESET

+3.3V(M)

+3.3V(S)

+30V(BT)+9V(P)

+9V(S)

+9V(M)

+5V(S)

AUDIO PROCESSOR

PWM

OPT

DDR2

CLOCK GEN

SD DATA

Digital Video Signal

Peaks Lite2p

(MAIN MPU+VIDEO PROCESSOR)

Digital

DVB_CVBS

DTV

IEC OUT

SERIAL

SBO2 SBI2

SD BOOT

PANEL_STB_ON

PANEL SIDE SOS

PANEL_STATUS

STANDBY MPU

GenX5

KEY1

SOUND SOS

(LED:11 TIMES)

REMOTE

DTV+9V SENSE

MAIN+9V SENSE

SUB+5V SENSE

MAIN+3.3V SENSE

SUB+5V SENSE

R_LED_ON G_LED_ON

DIGITAL MAINA

EEPROM

LVDS

RESET

IIC1

Dischrge Control

RESET

EEPROM

+5V(P)

+15V(P)

FPGA

SOS6_SC1

(LED:6 TIMES)

(LED:7 TIMES)

SOS7_SC2

EEPROM

+15V(P)

SCAN CONTROL

+3.3V(P)

+5V(P)

LVDS

Genx6

MPU

POWER_SOS

+15V(P) DET

(LED:2 TIMES)

+3.3V(P) DET MAIN ON/OFF (LED:3 TIMES)

+5V(P) DET (LED:5 TIMES)

(LED:4 TIMES)

SOS8_SS

(LED:8 TIMES)

DDR

Thermal sensor

FLASH MEMORY

PD2-M

LVDS Rx CPG with SS

H/V Sync Control Sub Filed Processor Plasma AI

Ready,ALARM

PANEL STATUS

PANEL STB_ON

+5V(STB)

+15V(P)

+15V(S)

DCDC

+3.3VSTB)

DCDC

+2.5V(P)

DCDC +3.3V(P) +1.2V(P)

DCDC

SUB+3.3V

DCDC SUB+1.2V SUB+1.8V

+3.3V(STB)

+2.5V(P)

+3.3V(P)

+1.2V(P)

+3.3V(S)

+1.2V(S)

+1.8V(S)

+3.3V(STB)

+5V(S)

A33

A34

FOR FACTORY USE

POWER SOS

+15V(P)

VIDEO DATA

SOS8_SS

SUSTAIN CONTROL

LED/RMT

+3.3V(STB)

+5V(S)

+5V(P)

A25

A31

A32

REMOTE

LED

to/from

P25

to/from

C21

C11

TH-50PV80AZA, PX80AA Block (1/5) Diagram

FOR FACTORY USE

A35

TH-50PV80AZA, PX80AA Block (1/5) Diagram

9.2. Block Diagram (2/5)

(LED(LED 8 TIME)8 TIME)

(LED

6 TIMES)6 TIMES)

(LED

7 TIMES)7 TIMES)

HOTHOTCOLD

(LED

4 TIME)4 TIME)

C21

C10

C32

+5V(P)

C22

+5V(P)

C20

C11

SS34

SC42

VSUS

SOS6_SC1

SD42

SS12

SC2

SOS7_SC2

SC41

SU11

Main Block(Tuner side)

SD11

SC20

SU41

A31

SS23

A32

SS11

A20

VSUS

SS21

SS02

SS03

SS22

C33

+5V(P)

+5V(STB)

VSUS

MAIN SW2

Vda

VSUS

RELAY

LINE FILTER

RECTIFIER

STANDBY VOLTAGE CONTROL

P11

P-BOARD SOS DETECT

MAIN SW1

+5V(P)

Vda

+15V(P)

F+15V

SUSTAIN VOLTAGE CONTROL

SUSTAIN VOLTAGE RECTIFIER

PROCESS VOLTAGE RECTIFIER

POWER FACTOR CONTROL

PROCESS VOLTAGE CONTROL

P12

STANDBY VOLTAGE RECTIFIER

ADDRESS VOLTAGE (VE)

ERASE PULSE

+15V(P)

MAIN SW1

Vda

MAIN SW1

MAIN SW2

SUSTAIN PULSE

SOS8_SS

SS-BOARD

SOS DETECT

SUSTAIN CONTROL

+5V(P)

MAIN SW2

VIDEO DATA

VdaVda

SOS8_SS

+5V(P)

SUSTAIN CONTROL

+5V(P)

VIDEO DATA

SC-BOARD FLOATING PART SOS DETECT

SC-BOARD ENERGY RECOVERY SOS DETECT

+5V(P)

+15V(P)

SOS8_SS

SUSTAIN CONTROL

Vda

VIDEO DATA

DATA DRIVER

SCAN CONTROL

SCAN OUT (LOWER)

DATA DRIVER (CENTER)

DATA DRIVER (RIGHT)

SCAN OUT (UPPER)

POWER SUPPLY

SCAN DRIVE

SUSTAIN DRIVESS

DATA DRIVER (LEFT)

SUSTAINSS3 CONNECTOR (LOWER)

CONNECTOR

SUSTAIN

(UPPER)

SS2

CONTROL PULSE

SCAN PULSE

VOLTAGE GENERATOR

SCAN DRIVER

SUSTAIN PULSE

F+15V

+15V(SND)

+5V(STB)

P25

PS SOS

+5V(P)

+15V(P)

POWER MICOM

ON/OFF CONTROL

SC46

SCAN DRIVER

SD46

AC CORD

(LED 8 TIME)

(LED

6 TIMES)

(LED

7 TIMES)

HOTCOLD

(LED

4 TIME)

TH-50PV80AZA, PX80AA Block Diagram (2/5)

POWER SWITCH

POWER SW

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