Panasonic TH-37PV80P, TH-37PX80B, TH-37PX80E, TH-42PV80P, TH-42PX80B Service Manual

...

ORDER NO.PCZ0802008CE

Plasma Television

Model No. TH-37PV80P

TH-37PX80B TH-37PX80E TH-42PV80P TH-42PX80B TH-42PX80E

GPH11DE 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.: U1= 1.0 V,

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.

= 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

2 Warning

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 aluminum 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 comparable 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 brushing 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 solder. 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. However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.

3 Service Navigation

3.1. Service Hint (42 inch)

Board Name Function Board Name Function

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

Speaker out, Sound Processor AV Terminal, AV Switch Digital Signal Processor, Micon, HDMI Interface Peaks Lite 2p Format Converter, Plasma AI, Sub-Field Processor

K Remote receiver, Power LED GS SD Card Slot S Power Switch

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

G Key Switch, Front Terminal

3.2. Service Hint (37 inch)

Board Name Function Board Name Function

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

Speaker out, Sound Processor AV Ter m i nal, 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 S Power Switch

C2 Data Driver (Lower Left)

SC Scan Drive SM Scan out SS Sustain Drive

G Key Switch, Front Terminal

GS SD Card Slot

3.3. Applicable signals

4 Specifications

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

Average use 235 W (37 inch)

Standby condition 0.7 W (Without monitor out recording)

Plasma Display panel

Aspect Ratio 16:9 Visible screen size 94 cm (diagonal) (37 inch)

Number of pixels 737,280 (1,024 (W) × 720 (H)) [3,072 × 720 dots] (37 inch)

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

Receiving Systems / Band name PAL I : UHF E21-68 (B model) PAL 525/60 : Playback of NTSC tape from some PAL Video recorders (VCR)

(Except B model) PAL B, G, H, I, SECAM B, G, SECAM L/L’ :

Aerial - Rear UHF (B model), VHF/UHF (Except B model) Operating Conditions

Connection Terminals

AV1 (Scart terminal) 21 Pin terminal (Audio/Video in, Audio/Video out, RGB in, Q-Link) AV2 (Scart terminal) 21 Pin terminal (Audio/Video in, Audio/Video out, RGB in, S-Video in, Q-Link) AV3

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) AUDIO L - R RCA

COMPONENT

VIDEO Y 1.0 V [p-p] (including synchronization)

AUDIO L - R RCA PIN Type × 2 0.5 V [rms]

Others

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

Card slot SD Card slot × 1

Output

AUDIO L - R RCA PIN Type × 2 0.5 V [rms] (high impedance)

255 W (42 inch)

20 W (With monitor out recording)

819 mm (W) × 457 mm (H) (37 inch) 106 cm (diagonal) (42 inch) 922 mm (W) × 518 mm (H) (42 inch)

786,432 (1,024 (W) × 768 (H)) [3,072 × 768 dots] (42 inch)

SXGA ....... compressed)

Horizontal scanning frequency 31 - 69 kHz Vertical scanning frequency 59 - 86 Hz

or NTSC disc playback from DVD player and recorder.

DVB : Digital terrestrial services via UHF aerial input. M.NTSC : Playback from M.NTSC Video recorders (VCR).

NTSC (AV input only) : Playback from NTSC Video recorders (VCR).

VHF E2 - E12 VHF H1 - H2 (ITALY) VHF A - H (ITALY) UHF E21 - E69 CATV (S01 - S05) CATV S1 - S10 (M1 - M10) CATV S11 - S20 (U1 - U10) CATV S21 - S41 (Hyperband)

PAL D, K, SECAM D, K :

VHF R1 - R2 VHF R3 - R5 VHF R6 - R12 UHF E21 -E69

PAL 520/60 : Playback of NTSC tape from some PAL Video recorders (VCR) DVB : Digital terrestrial services via VHF / UHF aerial input. M.NTSC : Playback from M. NTSC Video recorders (VCR) NTSC (AV input only) : Playback from NTSC Video recorders (VCR)

TV signals may not be received in some areas.

Temperature: 0 °F - 35 °C Humidity: 20 % - 80 % RH (non-condensing)

IN Type × 2 0.5 V [rms]

, P

± 0.35 V [p-p]

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

Dimensions (W × H × D) 917 mm × 665 mm × 327 mm (With Pedestal) (37 inch)

917 mm × 617 mm × 95 mm (TV only) (37 inch) 1,020 mm × 727 mm × 327 mm (With Pedestal) (42 inch) 1,020 mm × 679 mm × 95 mm (TV only) (42 inch)

Mass 24.5 k Net (With Pedestal) (37 inch)

22.5 k Net (TV only) (37 inch)

28.0 k Net (With Pedestal) (42 inch)

26.0 k Net (TV only) (42 inch)

Note

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

• This equipment complies with the EMC standards listed below. EN55013, EN61000-3-2, EN61000-3-3, EN55020, EN55022, EN55024.

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/Analog/DVB/AV1/AV2/AV2S/COMPONENT/ 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 63

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

7.1. Remove the rear cover

1. See Service Hint (Section 3)

7.2. Remove the P-Board

Caution:

To remove P.C.B. wait 1 minute after power was off for discharge 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, A12, A25, A31, A32, A51, A52).

3. Remove the screws (×5 ) and remove the tuner unit.

7.5. Remove the A-Board

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

2. Remove the tab and remove the CI cover.

7.3. Remove the rear terminal cover

1. Remove the screws (×3 , ×4 ).

2. Remove the rear terminal cover.

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

7.6. Remove the SU-Board (42 inch)

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 screws (×2 , ×2 ) and remove the SUBoard.

7.8. Remove the SD-Board (42 inch)

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 screws (×2 , ×2 ) and remove the SDBoard.

7.7. Remove the SM-Board (37 inch)

1. Remove the flexible cables (SM1, SM2, SM3, SM4, SM5 and SM6).

2. Remove the bridge connector (SM41, SM42 and SM46).

3. Remove the screws (×3 , ×4 ) and remove the SMBoard.

7.9. Remove the SC-Board

1. Remove the SU-Board, SM-Board and SD-Board. (See section 7.6., 7.7. and 7.8.)

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 SS-Board

1. Unlock the cable clampers to free the cable.

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

3. Disconnect the flexible cables (SS53A and SS56A) (42 inch)/(SS53 and SS56) (37 inch).

4. Remove the molding prop (×1 ).

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

7.12. Remove the C1-Board

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

2. Unlock the cable clampers to free the cable.

3. Remove the flexible cables holder fastening screws (×8

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

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

6. Remove the screws (×4 ) and remove the C1-Board.

42 inch

37 inch

7.11. Remove the stand brackets

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

2. Remove the stand brackets (left, right) fastening screws

(×4 each) and remove the stand brackets (left, right).

7.13. Remove the C2-Board

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

2. Unlock the cable clampers to free the cable.

3. Remove the flexible cables holder fastening screws

(×8 ).

4. Disconnect the flexible cables (CB5, CB6, CB7 and CB8).

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

6. Disconnect the connector (C23).

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

42 inch

37 inch

7.14. Remove the front shield unit

7.16. Remove the speaker L, R

1. Disconnect the connector (A12). (See section 7.4.)

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

assy

1. Disconnect the connector (A51 and A52). (See section

7.4.)

2. Remove the screws (×4 ) and remove the front shield unit assy.

7.15. Remove the G-Board and GS-Board

1. Remove the front bracket and the front shield unit assy. (See section 7.14.)

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

7.17. Remove the S-Board

1. Remove the stand brackes. (See section 7.11.)

2. Remove the screws (×2 ).

3. Disconnect the connector (S1).

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

3. Remove the screws (×5 ) and disconnect the connector (G51 and GS52).

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

7.18. Remove the K-Board

1. Remove the S-Board. (See section 7.17.)

2. Unlock the cable clampers to free the cable.

3. Remove the screws (×2 ).

4. Disconnect the connectors (K1) and remove the K-Board.

screws (×7 ).

7.19. Remove the Plasma panel section from the Cabinet assy (glass)

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

(×1 each).

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 ).

2. Remove the cabinet assy and the plasma panel fastening

Caution:

• Please confirm the installation plate of Spacer and Spacer Ring when you exchange the Plasma Panel, and install Spacer and Spacer Ring in an original installation place after exchange the Plasma Panel.

7.20. Replace the plasma panel (finished)

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 and the C2-Board, connect the flexible cables (×16) from the Plasma panel to the C1-Board and the C2-Board, and fit the flexible 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. Driver Set-up

8.1.1. 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.

8.1.2. 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 (SS) * Vset TPVSET

(SC) Vad TPVAD (SC) -149V ± 1V VR16600 (SC) Vscn TPVSCN

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

*See the Panel label.

Vsus ± 2V R628 (P) *

320V ± 7V Fixed

Vad+145V ± 4V Fixed

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

8.1.3.1. Caution

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

8.1.3.2. 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) -105V ± 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.

8.1.4. Adjustment Volume Location

8.1.5. Test Point Location

9 Block Diagram

9.1. Block (1 of 7) Diagram

SD CARD SLOT

SD CARD I/F

HEADPHONE

+3.3V(S)

FRONT TERMINAL

AV3

KEY

Y,C , V

L,R

SPEAKER(R)

SPEAKER(L)

GS52

G51

from

A52

A51

A12

HDMI1

HDMI2

HDMI3

Dig/Ana Tuner

AV1

AV2

COMP

MONITOR OUT

DIGITAL AUDIO OUT

+3.3V(S)

Y,C , V

L,R

Y,C , V

L,R

Y,PB,PR

L,R

R,G,B

Y,C , V

L,R

HP L/R

KEY SCAN

+15V(SOUND)

+5V(STB)

+15V(F_STB)

ALL OFF

IFD1/2

SIF,AM

AUDIO AMP

SOUND+15V

VIDEO AUDIO SWITCH

SOUND SOS DET

B/E ONLY

OFDM

L,R

L,R (ATV or DTV)

SOUND_SOS

CI SLOT

BUFFER

PWM

MONITOR L,R

OPT

AUDIO PROCESSOR

BT+30V

HDMI

DTV

IECOUT

RESET

HDMI Rx A/D CONV.

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

+9V(S)

+9V(M)

+5V(S)

+3.3V(M)

+3.3V(S)

DDR2

CLOCK GEN

SD DATA

Digital Video Signal

Peaks Lite2p

(MAIN MPU+VIDEO PROCESSOR)

HSDIN TS Parallel

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 11TIMES)(LED 12TIMES)

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)

A20

+15V(P)

FPGA

to/from

SC20

(LED

SOS6_SC1

SOS7_SC2

EEPROM

+15V(P)

SCAN CONTROL

+3.3V(P)

LVDS

+15V(P) DET

(LED

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

+5V(P) DET

+5V(P)

(LED

Ready,ALARM

PANEL STB_ON

2TIMES)

3TIMES)

5TIMES)

(LED

PANEL STATUS

(LED

Genx6

MPU

(LED 4TIMES)

SOS8_SS

8TIMES)

6TIMES)

7TIMES)

POWER_SOS

+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

DDR

LVDS Rx CPG with SS

H/V Sync Control Sub Filed Processor Plasma AI

+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)

PD2-M

A33

A34

Thermal sensor

FLASH MEMORY

FOR FACTORY USE

SUSTAIN CONTROL

POWER SOS

VIDEO DATA

SOS8_SS

LED/RMT

+3.3V(STB)

+5V(S)

+5V(P)

+15V(P)

+5V(P)

A25

A31

A32

REMOTE

LED

to/from

P25

to/from

C21

C11

TH-37/42PV80P, PX80B/E Block (1/7) Diagram

A35

FOR FACTORY USE

TH-37/42PV80P, PX80B/E

Block (1/7) Diagram

9.2. Block (2 of 7) Diagram (42 inch)

SU SCAN OUT (UPPER)

SCAN DRIVER

SU11

SD11

SCAN DRIVER

SCAN OUT (LOWER)SD

SU41

SD42

SD46

SC41

SC42

SC46

SC SCAN DRIVE

SC-BOARD ENEGRY RECOVERY SOS DETECT

(LED

6 TIMES)

SC-BOARD FLOTING PART SOS DETECT

7 TIMES)

(LED

CONTROL PULSE

SUSTAIN PULSE

SCAN PULSE

VOLTAGE GENERATOR

SC2

VSUS

SOS6 SC1

SOS7_SC2

+5V(P)

+15V(P)

SCAN CONTROL

SC20

DATA DRIVER

A20

DATA DRIVER (RIGHT)

DATA DRIVER

Main Block(Tuner side)

A31

C11

+5V(P)

VIDEO DATA

C10

DATA DRIVER

POWER SUPPLY

PS SOS (LED

+5V(P)

+15V(P)

P25

A25

F+15V

+5V(STB)

SOS8 SS

VdaVda

DATA DRIVER (LEFT)

DATA DRIVER

F+15V

+15V(SND)

+5V(STB)

DATA DRIVER

A32

C21

+5V(P)

C20

VIDEO DATA

DATA DRIVER

4 TIME)

POWER MICOM

ON/OFF CONTROL

Vda

+15V(P)

+5V(P)

COLD HOT

STANBY VOLTAGE RECTIFIER

STANBY VOLTAGE CONTROL

RECTIFIER

LINE FILTER

+5V(P)

DATA DRIVER

C23

PROCESS VOLTAGE RECTIFIER

PROCESS VOLTAGE CONTROL

POWER FACTOR CONTROL

RECTIFIER

P-BOARD SOS DETECT

LINE FILTER

RELAY

+5V(P)

SOS8 SS

SUSTAIN CONTROLSUSTAIN CONTROL

Vda

VSUS

SUSTAIN VOLTAGE RECTIFIER

SUSTAIN VOLTAGE CONTROL

MAIN SW2

MAIN SW1

+15V(P)

AC CORD

SUSTAIN DRIVESS

VSUS

P11

P12

Vda

SS11

SS12

VSUS

MAIN SW2

MAIN SW1

+15V(P)

+5V(P)

Vda

SS23

SOS8_SS

SUSTAIN CONTROL

SS-BOARD SOS DETECT

(LED

ADDRESS VOLTAGE (VE)

SUSTAIN PULSE

MAIN SW1

MAIN SW2

SS34

ERASE PULSE

8 TIME)

POWER SW

POWER SWITCH

TH-42PV80P, PX80B/E Block (2/7) Diagram

TH-42PV80P, PX80B/E

Block (2/7) Diagram

9.3. Block (3 of 7) Diagram (37 inch)

SM SCAN OUT

SCAN DRIVER

SC41

SM41

SM42

SC42

SM46 SC46

SC SCAN DRIVE

SC-BOARD ENEGRY RECOVERY SOS DETECT

6 TIMES)

(LED

SC-BOARD FLOTING PART SOS DETECT

7 TIMES)

(LED

CONTROL PULSE

SUSTAIN PULSE

SCAN PULSE

VOLTAGE GENERATOR

SC2

VSUS

SOS6 SC1

SOS7_SC2

+5V(P)

+15V(P)

SCAN CONTROL

SC20

A20

DATA DRIVER (RIGHT)

Main Block(Tuner side)

A31

C11

+5V(P)

VIDEO DATA

Vda

C10

POWER SUPPLY

PS SOS

4 TIME)

F+15V

+5V(STB)

(LED

POWER MICOM

ON/OFF CONTROL

Vda

+15V(P)

+5V(P)

COLD HOT

STANBY VOLTAGE RECTIFIER

STANBY VOLTAGE CONTROL

RECTIFIER

LINE FILTER

+5V(P)

+15V(P)

P25

A32

C21

+5V(P)

C20

VIDEO DATA

DATA DRIVER (LEFT)

SOS8 SS

SUSTAIN CONTROL

Vda

F+15V

+15V(SND)

+5V(STB)

C23

PROCESS VOLTAGE RECTIFIER

PROCESS VOLTAGE CONTROL

POWER FACTOR CONTROL

RECTIFIER

LINE FILTER

RELAY

+5V(P)

SOS8 SS

SUSTAIN CONTROL

Vda

P-BOARD SOS DETECT

VSUS

SUSTAIN VOLTAGE RECTIFIER

SUSTAIN VOLTAGE CONTROL

MAIN SW2

MAIN SW1

+15V(P)

AC CORD

SUSTAIN DRIVESS

VSUS

P11

P12

Vda

SS11

SS12

VSUS

MAIN SW2

MAIN SW1

+15V(P)

+5V(P)

SS23

SS-BOARD SOS DETECT

(LED 8 TIME)

ADDRESS VOLTAGE (VE)

SUSTAIN PULSE

ERASE PULSE

Vda

SOS8 SS

SUSTAIN CONTROL

MAIN SW1

MAIN SW2

SS34

POWER SW

POWER SWITCH

TH-37PV80P, PX80B/E Block (3/7) Diagram

DATA DRIVER

TH-37PV80P, PX80B/E

Block (3/7) Diagram

9.4. Block (4 of 7) Diagram

+15V_S

F+15V

STB5V

TUNER_SUB_ON

ECO_ON

SUB+9V

SUB+5V

JK3002

AV1 V

DTV9V

SUB5V

AV1

AV1 RED

AV1 GREEN

AV1 BLUE

AV1 LIN

IC3001

AV SW

AV1

V,R,G,B

L,R

AV2

V,Y,C,R,G,B

L,R

AV3

V,Y, C

L,R

COMP/PC

Y,PB,PR

R,G,B

L,R

TV/DTV

DVB_CVBS

L,R

MAIN9V

MAIN5V

AV1 RIN

TU8301

Dig/Ana Tuner

SUB+5V

BT+30V

SIF,AM

IFD1/2

IIC_TUNER

S_15V

F15V

IC5401

+9V

IC5400

+5V

STB5V

AV1 VOUT

AV1_LOUT

AV1_ROUT

+9V +5V

JK3003

AV2_V_Y

AV1_VOUT

AV2_VOUT

AV1_L,ROUT

AV2_L,ROUT

L,ROUT

MAIN

CVBS/S/YUV /RGB(PC)

AV2

AV2_RED_C

AV2_GREEN

L,R

D5612

(+5 6V)

AV2_BLUE

SUB+5V DTV+9V

BT+30V

IC5660

RESET

AV2_LIN

AV2_RIN

IIC2

D5522

D5521

AV2 ROUT

AV2 VOUT

AV2 LOUT

XRST

IC5600

+3.3V

Q5606,07

F+15V DET

Norm Low Ab

high

JK3100

Norm Low

high

SHOTO SOS

Q5522

LED 3TIMES)

SUB+3.3V

AUDIO

YPBPR

IN/OUT

LIN

RIN

IC2106

AUDIO PROCESSOR

SIF,AM

L,R

TV_LR/DTV_LR

IC2008

IIC2

SUB3.3V

IC5601

LOUT

HEADPHONE

JK3001

PC IN

ROUT

IC2013

MAIN9V

HEADPHONE

+3.3V

HP L,R

SP L,R

+1.8V

PWM

HDMI Audio

DTV

IC2107

+1 8V

+3 3V

SUB3.3VSUB5V

MAIN3.3V

SUB1.8V

+1.8V

SUB1.2V

+1.2V

AV3

415210 139326

AV3_L

AV3_C

AV3_V

AV3 Y

10 15

IC2012

+5V

MAIN9V

BT30V

AV3_R

HP AMP

Q2027

BT30V

HP_L

SUB5V

DTV9V

STB5V

HP R

CONTROL BUTTON

G51

KEY1

A51

IC2301

AUDIO AMP

IC2403

STB3.3V

STB_RESET

STB_RST

STB +3.3V

+9V

SPEAKER L,R

A12

R(-)

R(+)

SPEAKER OUT

STB3.3V

L(+)

D2017

(LED

L(-)

SOS DET

SOS Low

SOUND SOS

Q2022

12TIMES)

IC1102

BUFFER

+15V

SOUND15V

D2014

HDMI_CEC

SUB3.3V

IC4811

IIC SW

JK4500

Q4502

HDMI2

CEC

+5V

DDC IIC

DET2

+5V(HDMI)

B/E ONLY

TMDS

IC4515

5V<->3.3V

LEVEL SHIFT

DDC_IIC1

IC8302

+1 8V

JK4501 JK4502

HDMI1

CEC

+5V

DDC IIC

LEVEL SHIFT

STB5V

DET1

Q4503

+5V(HDMI)

XRST

3.3V

1.8V

IC1101

EEPROM

TMDS

IC4514

5V<->3.3V

DDC_IIC0

IC8301

OFDM

DIGITAL DEMODULATOR

IIC2

HDMI3

+5V

Q4521

+5V(HDMI)

IIC TUNER

IIC3

CEC

TMDS

DDC IIC

Analog video signal

SUB3.3V

DET3

IC4518

EEPROM

IC1100

STANDBY_MPU

SOUND_SOS

KEY1

SOS

(LED 10TIMES)

XRST

STB_RST

MAIN3.3V_SENSE

SUB3.3V_SENSE

IIC3

IIC

STB+3.3V

SUB5V_SENSE

DTV_9V_SENSE

MAIN9V_SENSE

TUNER_SUB_ON

ECO_ON

HDMI3

HDMI1

HDMI2

(LED

IC4512

+1 8V

SUB5V

IC4800

TEMP SENSOR

GenX5

12TIMES)

IC4510

HDMI PROCESSOR

HDMI

DECORD

DDCB_IIC

DDCC_IIC

DDCA_IIC

IC4511

+3 3V

IC4513

+1 8V

+5V(HDMI) DET1,2,3

HDMI_CEC

HDMI_CEC_PU_ON

SD BOOT

PANEL SOS (ARARM)

PANEL STB_ON

PANEL STATUS (READY)

AI_SENSOR

G_LED_ON

R_LED_ON

HDMI Rx/AD CONV.

AUDIO

VIDEO

A/D

+3.3V

+1.8V

IIC1

SBI2 SBO2

RMIN

D1107

Digtal Audio Signal

Digtal Video Signal

TH-37/42PV80P, PX80B/E Block (4/7) Diagram

DIGITAL MAINA

TH-37/42PV80P, PX80B/E

Block (4/7) Diagram

+ 127 hidden pages