Panasonic TX-P50C2B, TX-P50C2E, TX-PR50C2 Service manual

ORDER NO. PCZ1004041CE

Plasma Television

Model No. TX-P50C2B

TX-P50C2E TX-PR50C2

GPH13DE Chassis

TABLE OF CONTENTS

PAGE PAGE

1 Safety Precautions -----------------------------------------------3

1.1. General Guidelines ----------------------------------------3

1.2. Touch-Current Check--------------------------------------3

2Warning--------------------------------------------------------------4

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices ----------4

2.2. About lead free solder (PbF)----------------------------5

3 Service Navigation------------------------------------------------6

3.1. PCB Layout--------------------------------------------------6

3.2. Applicable signals------------------------------------------7

4 Specifications------------------------------------------------------8 5 Technical Descriptions----------------------------------------10

5.1. Specification of KEY for CI Plus, DTCP-IP and One-to-One------------------------------------------------10

6 Service Mode-----------------------------------------------------11

6.1. How to enter into Service Mode---------------------- 11

6.2. Option - Mirror---------------------------------------------13

6.3. Service tool mode----------------------------------------13

6.4. Hotel mode-------------------------------------------------14

6.5. Data Copy by SD Card ---------------------------------15

7 Troubleshooting Guide----------------------------------------18

7.1. Check of the IIC bus lines------------------------------18

7.2. Power LED Blinking timing chart---------------------19

7.3. No Power---------------------------------------------------20

7.4. No Picture--------------------------------------------------21

7.5. Local screen failure--------------------------------------22

8 Service Fixture & Tools---------------------------------------23

8.1. SC jig--------------------------------------------------------23

9 Disassembly and Assembly Instructions---------------24

9.1. Remove the Rear cover --------------------------------24

9.2. Remove the AC inlet ------------------------------------24

9.3. Remove the P-Board------------------------------------24

9.4. Remove the Side terminal cover and the Side shield metal------------------------------------------------ 24

9.5. Remove the Tuner unit ---------------------------------25

9.6. Remove the A-Board------------------------------------25

9.7. Remove the Speakers ----------------------------------25

9.8. Remove the SU-Board----------------------------------25

9.9. Remove the SD-Board----------------------------------26

9.10. Remove the SC-Board----------------------------------26

9.1 1 . Remove the SS-Board----------------------------------26

9.12. Remove the Hanger metals and the Stand brackets-----------------------------------------------------26

9.13. Remove the C1-Board----------------------------------27

9.14. Remove the C2-Board----------------------------------27

9.15. Remove the S-Board------------------------------------27

9.16. Remove the Plasma panel section from the Cabinet assy (glass)-------------------------------------28

9.17. Remove the Glass holders ----------------------------28

9.18. Remove the K-Board------------------------------------28

9.19. Replace the plasma panel -----------------------------29

10 Measurements and Adjustments --------------------------30

10.1. Adjustment-------------------------------------------------30

11 Block Diagram ---------------------------------------------------35

1 1 .1. Main Block Diagram-------------------------------------35

11.2. Block (1/4) Diagram -------------------------------------36

11.3. Block (2/4) Diagram -------------------------------------37

11.4. Block (3/4) Diagram -------------------------------------38

11.5. Block (4/4) Diagram------------------------------------- 39

12 Wiring Connection Diagram -------------------------------- 41

12.1. Caution statement. -------------------------------------- 41

12.2. Wiring (1) -------------------------------------------------- 41

12.3. Wiring (2) -------------------------------------------------- 41

12.4. Wiring (3) -------------------------------------------------- 42

12.5. Wiring (4) -------------------------------------------------- 43

13 Schematic Diagram -------------------------------------------- 45

13.1. Schematic Diagram Note------------------------------ 45

13.2. A-Board (1/19) Schematic Diagram----------------- 46

13.3. A-Board (2/19) Schematic Diagram----------------- 47

13.4. A-Board (3/19) Schematic Diagram----------------- 48

13.5. A-Board (4/19) Schematic Diagram----------------- 49

13.6. A-Board (5/19) Schematic Diagram----------------- 50

13.7. A-Board (6/19) Schematic Diagram----------------- 51

13.8. A-Board (7/19) Schematic Diagram----------------- 52

13.9. A-Board (8/19) Schematic Diagram----------------- 53

13.10. A-Board (9/19) Schematic Diagram----------------- 54

13.11. A-Board (10/19) Schematic Diagram--------------- 55

13.12. A-Board (11/19) Schematic Diagram --------------- 56

13.13. A-Board (12/19) Schematic Diagram--------------- 57

13.14. A-Board (13/19) Schematic Diagram--------------- 58

13.15. A-Board (14/19) Schematic Diagram--------------- 59

13.16. A-Board (15/19) Schematic Diagram--------------- 60

13.17. A-Board (16/19) Schematic Diagram--------------- 61

13.18. A-Board (17/19), K-Board and S-Board Schematic Diagram ------------------------------------- 62

13.19. A-Board (18/19) Schematic Diagram--------------- 63

13.20. A-Board (19/19) Schematic Diagram--------------- 64

13.21. C1-Board Schematic Diagram ----------------------- 65

13.22. C2-Board Schematic Diagram ----------------------- 66

13.23. SC-Board (1/4) Schematic Diagram---------------- 67

13.24. SC-Board (2/4) Schematic Diagram---------------- 68

13.25. SC-Board (3/4) Schematic Diagram---------------- 69

13.26. SC-Board (4/4) Schematic Diagram---------------- 70

13.27. SS-Board (1/2) Schematic Diagram ---------------- 71

13.28. SS-Board (2/2) Schematic Diagram ---------------- 72

14 Printed Circuit Board------------------------------------------ 73

14.1. K-Board ---------------------------------------------------- 73

14.2. A-Board ---------------------------------------------------- 74

14.3. C1-Board--------------------------------------------------- 76

14.4. C2-Board--------------------------------------------------- 77

14.5. SC-Board -------------------------------------------------- 78

14.6. SS-Board -------------------------------------------------- 80

15 Exploded View and Replacement Parts List----------- 83

15.1. Exploded View and Mechanical Replacement Parts List--------------------------------------------------- 83

15.2. Electrical Replacement Parts List ------------------- 91

1 Safety Precautions

1.1. General Guidelines

1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.

2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the wires have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the entire wiring unit instead.

3. When conducting repairs and servicing, do not twist the Faston connectors but plug them straight in or un plug them straight out.

4. When servicing, observe the original lead dress. If a short circuit is found, re place 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 incid ence 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 su ch 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 rem oval 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 proc ess 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. However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.

3 Service Navigation

3.1. PCB Layout

Board Name Function Board Name Function

P Power Supply

Non serviceable. P-Board should be exchanged for service.

A DC-DC Converter, Tuner

Speaker out, AV Terminal, HDMI in, SD Card Digital Signal Processor, PEAKS-sLD Format Converter, Plasma AI, Sub-Field Processor

Key Switch K Remote receiver, Power LED S Power Switch

C1 Data Driver (Lower Right) C2 Data Driver (Lower Left) SC Scan Drive SS Sustain Drive SU Scan out (Upper)

Non serviceable. SU-Board should be exchanged for service.

SD Scan out (Lower)

Non serviceable. SD-Board should be exchanged for service.

3.2. Applicable signals

COMPONENT (Y, PB, PR), HDMI

* Mark: Applicable input signal for Component (Y, PB, PR) and HDMI

Signal name COMPONENT HDMI 525 (480) / 60i * * 525 (480) / 60p * * 625 (576) / 50i * * 625 (576) / 50p * * 750 (720) / 60p * * 750 (720) / 50p * * 1,125 (1,080) / 60i * * 1,125 (1,080) / 50i * * 1,125 (1,080) / 60p * 1,125 (1,080) / 50p * 1,125 (1,080) / 24p *

PC (from HDMI terminal)

Applicable input signal for PC is basically compatible to HDMI standard timing.

Signal name Horizontal frequency (kHz) Vertical frequency (Hz) 640 × 480 @60 Hz 31.47 60.00 750 (720) / 60p 45.00 60.00 1,125 (1,080) / 60p 67.50 60.00

Note

• Signals other than above may not be displayed properly.

• The above signals are reformatted for optimal viewing on your display.

• PC signal is magnified or compressed for display, so that it may not be possible to show fine detail with sufficient clarity.

4 Specifications

Power Source AC 220-240 V, 50 / 60 Hz Rated Consumption 265 W (B/E), 290 W (R) Standby Power Consumption 0.4 W (Without monitor out recording)

15 W (With monitor out recording)

Display panel

Aspect Ratio 16:9 Visible screen size 127 cm (diagonal) 1,105 mm (W) × 622 mm (H) Number of pixels 786,432 (1,024 (W) × 768 (H)) [3,072 × 768 dots]

Sound

Speaker 160 mm × 40 mm × 2 pcs, 6 Ω Audio Output 20 W ( 10 W + 10 W ) Headphones M3 (3.5 mm) stereo mini Jack × 1

Receiving Systems / Band name (B)

PAL I : UHF E21-68 PAL 525/60 : Playback of NTSC tape from some PAL Video recorders (VCR)

DVB-T : 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).

Receiving Systems / Band name (E)

PAL B, G, H, I, SECAM B, G, SECAM L, L’

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 525/60 Playback of NTSC tape from some PAL Video recorders (VCR) M.NTSC Playback from M. NTSC Video recorders (VCR) NTSC (AV input only) Playback from NTSC Video recorders (VCR) DVB-T Digital terrestrial services (MPEG2 and MPEG4-AVC(H.264)) DVB-C Digital cable services (MPEG2 and MPEG4-AVC(H.264))

• Check the latest information on the available services at the following website. (English only)

http://panasonic.jp/support/global/cs/

Receiving Systems / Band name (R)

PAL D, K, SECAM D, K

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

• Check the latest information on the available services at the following website. (English only)

http://panasonic.jp/support/global/cs/

Aerial input UHF (B), VHF / UHF (E/R) Operating Conditions

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

Connection Terminals

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

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

COMPONENT

VIDEO

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

Others

HDMI1 / 2 TYPE A Connectors

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

, P

HDMI1 : HDMI (Version 1.3a with x.v.Colour™) HDMI2 : HDMI (Version 1.4 with Audio Return Channel) and

or NTSC disc playback from DVD player and recorder.

Countries that DVB-C is available: Germany, Switzerland, Denmark, Sweden, Norway, Finland, Netherlands

± 0.35 V [p-p]

HDMI (Version 1.3a with x.v.Colour™)

• This TV supports “HDAVI Control 5” function.

Card slot SD Card slot × 1

Common Interface slot × 1

Output

DIGITAL AUDIO OUT PCM / Dolby Digital, Fiber optic

Dimensions (W × H × D) 1,218 mm × 817 mm × 357 mm (With Pedestal)

1,218 mm × 769 mm × 93 mm (TV only)

Mass 33.0 kg Net (With Pedestal)

31.5 kg Net (TV only)

Note

• Design and Specifications 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

5 Technical Descriptions

5.1. Specification of KEY for CI Plus, DTCP-IP and One-to-One

5.1.1. General information:

1. EEPROM (IC8950) for spare parts has the seed of KEY for each.

2. The final KEY data will be generated by Peaks IC (IC8001) when SELF CHECK was done and are stored in both Peaks IC (IC8001) and EEPROM (IC8950). Three KEY are not generated for all models. The necessary KEY are only generated and stored depend on the feature of models.

5.1.2. Replacement of ICs:

When Peaks IC (IC8001) is replaced, EEPROM (IC8950) should be also replaced with new one the same time. When EEPROM (IC8950) is replaced, Peaks IC (IC8001) is not necessary to be replaced the same time. After the replacement of IC, SELF CHECK should be done to generate the final KEY data. How to SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds. TV will be forced to the factory shipment setting after this SELF CHECK.

5.1.3. Model and Keys:

Model No. Keys

CI Plus DTCP-IP One-to-One

(For USB Rec.) TX-P50C2B None None None TX-P50C2E Yes None None TX-PR50C2 None None None

6 Service Mode

6.1. 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.

6.1.1. 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 dire cti o n [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 ( - )

6.1.2. 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.

6.1.3. How to exit

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

6.2. Option - Mirror

Picture can be reversed left and right or up and down. 00 : Default (Normal picture is displayed) 01 : Picture is reversed left and right. 02 : Picture is reversed up and down.

Hint : If the defective symptom (e.g. Vertical bar or Horizontal bar) is moved by selection of this mirror, the possible cause is in A-board.

6.3. Service tool mode

6.3.1. How to access

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

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

6.3.2. 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].

6.3.3. POWER ON Time, On/Off

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

6.3.4. Exit

1. Disconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.

6.4. 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/DVB-C/DVB-T/Analog/AV1/AV1S/AV2/COMPONENT/HDMI1/HDMI2

• 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 100

• 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

6.5. Data Copy by SD Card

6.5.1. Purpose

(a) Board replacement (Copy the data when exchanging A-board):

When exchanging A-board, the data in original A-board can be copied to SD card and then copy to new A-board.

(b) Hotel (Copy the data when inst alling a number of units in hotel or any facility):

When installing a number of units in hotel or any facility, the data in master TV can be copied to SD card and then copy to other TVs.

6.5.2. Preparation

Make pwd file as startup file for (a) or (b) in a empty SD card.

1. Insert a empty SD card to your PC.

2. Right-click a blank area in a SD card window, point to New, and then click text document. A new file is created by default (New Text Document.txt).

3. Right-click the new text document that you just created and select re name, and then change the na me and extension of th e file to the following file name for (a) or (b) and press ENTER.

File name:

(a) For Board replacement : boardreplace.pwd (b) For Hotel : hotel.pwd

Note:

Please make only one file to prevent the operation error. No any other file should not be in SD car d.

6.5.3. Data copy from TV set to SD Card

1. Turn on the TV set.

2. Insert SD card with a startup file (pwd file) to SD slot. On-screen Display will be appeared according to the startup file automatically.

3. Input a following password for (a) or (b) by using remote control.

(a) For Board replacement : 2770

(b) For Hotel : 4850 Data will be copied from TV set to SD card. It takes around 2 to 6 minutes maximum for copying.

4. After the completion of copying to SD card, remove SD card from TV set.

5. Turn off the TV set.

Note:

Following new folder will be created in SD card for data from TV set.

(a) For Board replacement : user_setup (b) For Hotel : hotel

6.5.4. Data copy from to SD Card to TV set

1. Turn on the TV set.

2. Insert SD card with Data to SD slot. On-screen Display will be appeared according to the Data folder automatically.

3. Input a following password for (a) or (b) by using remote control.

(a) For Board replacement : 2771 (b) For Hotel : 4851

Data will be copied from SD card to TV set.

4. After the completion of copying to SD card, remove SD card from TV set.

(a) For Board replacement : Data will be deleted after copying (Limited one copy). (b) For Hotel : Data will not be deleted and can be used for other TVs.

5. Turn off the TV set.

Note:

1. Depending on the failure of boards, function of Data copy for board replacement does not work.

2. This function can be effective among the same model numbers.

7 Troubleshooting Guide

Use the self-check function to test the unit.

1. Checking the IIC bus lines

2. Power LED Blinking timing

7.1. Check of the IIC bus lines

7.1.1. How to access

7.1.1.1. Self-check indication only:

Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] b utton on the remote control for more than 3 seconds.

7.1.1.2. Self-check indication and forced to factory shipment setting:

Produce TV reception screen, and while pressing [VOLUME ( - )] button on the ma in unit, press [MENU] button on the remote control for more than 3 seconds.

7.1.2. Screen display

7.1.3. Check Point

Confirm the following parts if NG was displayed.

7.1.4. Exit

Disconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.

7.2. 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.

7.3. No Power

First check point There are following 3 states of No Power indication by power LED.

1. No lit.

2. Green is lit then turns red blinking a few seconds later. (See 7.2.)

3. Only red is lit.

7.4. No Picture

7.5. 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

8 Service Fixture & Tools

8.1. SC jig

Purpose:

To find the failure board (SC or SU/SD) when the power LED is blinking 7 times.

SC jig:

Jumper connector to connect to SC50 connector on SC board

Part number:

TZSC09187

How to use: Caution: Remove SC jig from SC board after inspection.

1. Remove all connector between SC board and SU/SD board to isolate SC board from both SU and SD board electrically. Note: The board will be damaged if all connector is not removed (for ex ample; remove connector on ly for SU board and stay connecting with SD board. The board will be damaged.)

2. Connect SC jig to connector SC50 at left bottom side of SC board

3. Turn on the TV/Display Unit and confirm the power LED blinking. LED blinking: Possible cause of failure is in SC board No LED blinking (Lighting or no lighting): Possible cause of failure is in SU or SD board

4. After inspection, turn off the TV/Display Unit and wait a few minutes to discharge.

5. Remove SC jig from SC board.

Remark: This SC jig can be used for all 2010 Plasma TV and Plasma Display.

9 Disassembly and Assembly Instructions

9.1. Remove the Rear cover

1. See PCB Layout (Section 3)

9.2. Remove the AC inlet

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 connector (P9).

3. Remove the screw (×1 ) and remove the AC inlet.

9.3. 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, P34 and P35).

3. Remove the screws (×9 ) and remove the P-Board.

9.4. Remove the Side terminal cover and the Side shield metal

1. Remove the screws (×2 , ×1 , ×1 ).

2. Remove the Side terminal cover.

3. Remove the Side shield metal.

9.5. Remove the Tuner unit

1. Remove the Side terminal cover and the Side shield metal. (See section 9.4.)

2. Unlock the cable clampers to free the cable.

3. Disconnect the connectors (A1, A6, A7 and A11).

4. Disconnect the flexible cables (A20, A31 and A32).

5. Remove the screws (×2 ) and remove the Tuner unit.

9.7. Remove the Speakers

1. Unlock the cable clampers to free the cable.

2. Disconnect the Speaker terminal.

3. Remove the screws (×2 each) and remove the Speakers (L, R).

9.8. 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-SU41B).

3. Remove the molding prop (×1 ).

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

9.6. Remove the A-Board

1. Remove the Tuner unit. (See section 9.5.)

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

9.9. 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-SD42B and SC46-SD46B).

3. Remove the molding prop (×1 ).

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

9.11. Remove the SS-Board

1. Remove the Tuner unit. (See section 9.5.)

2. Unlock the cable clampers to free the cable.

3. Disconnect the connectors (SS3, SS11 and SS23).

4. Disconnect the flexible cables (SS52 and SS55).

5. Remove the screws (×4 ) and remove the SS-Board.

9.10. Remove the SC-Board

1. Remove the SU-Board and SD-Board. (See se ction 9.8. and 9.9.)

2. Unlock the cable clampers to free the cable.

3. Disconnect the connectors (SC2 and SC3).

4. Disconnect the flexible cable (SC20).

5. Remove the screws (×8 ) and remove the SC-Board.

9.12. Remove the Hanger metals and the Stand brackets

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

2. Remove the Stand brackets (L, R) fastening screws (×3

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

3. Remove the Hanger metals (L, R) fastening screws (×2 each) and remove the Hanger metals (L, R).

9.13. Remove the C1-Board

1. Remove the Hanger metal R and the Stand bracket R.

(See section 9.12.)

2. Remove the flexible cable holder fastening screws (×8 ).

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

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

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

9.15. Remove the S-Board

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

2. Disconnect the connector (S1B).

3. Remove the Power Button.

4. Remove the screw (×1 ) and remove the S-Board.

9.14. Remove the C2-Board

1. Remove the Tuner unit. (See section 9.5.)

2. Remove the Hanger metal L and the Stand bracket L. (See section 9.12.)

3. Remove the flexible cable 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 connectors (C23 and C25).

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

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

1. Remove the plasma panel fastening screws (×3 ) and remove the cabinet assy.

9.17. Remove the Glass holders

1. Remove the Cabinet assy. (See section 9.16.)

2. Remove the screws (×4 ).

3. Remove the Glass holder side (L, R).

4. Remove the screws (×9 ).

5. Remove the Glass holder top.

6. Remove the screws (×7 ).

7. Remove the Glass holder bottom.

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

9.18. Remove the K-Board

1. Remove the Glass holders. (See section 9.17.)

2. Remove the screw (×1 ).

3. Remove the claws (×2 ).

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

9.19. Replace the plasma panel

Caution:

A new plasma panel itself without Hanger metals is fragile. To avoid the damage to new plasma panel, carry a new plasma panel taking hold of the Hanger metals after assembling the Hanger metals and the Stand brackets.

1. Place a carton box packed a new plasma panel on the flat surface of the work bench.

2. Open a box and without taking a new plasma panel; Attach the C1-Board and the C2-Board, connect the flexible cables from the plasma panel to the C1-Board and the C2-Board, and fit the flexible cable holders.

3. Attach the Hanger metals and the Stand brackets to the new plasma panel.

4. Place the plasma panel on the servicing stand taking hold of the Hanger metals.

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.

10 Measurements and Adjustments

10.1. Adjustment

10.1.1. Vsus selection

Caution:

When Plasma panel or A-board is replaced, Vsus should be set to LOW or HIGH.

Procedure

1. Go into main item [VSUS] in Service Mode. LOW or HIGH will be displayed.

2. Press [OK] button to go to TEST stage. White pattern without On-Screen Display will be displayed during TEST and CONF stage. Press [5] button to display the On-Screen Display.

3. Press [VOL (-)] button to set to LOW.

4. In LOW setting

a. If no several dead pixel is visible remarkably in white pattern, press [3] button to go to CONF stage. b. If the several dead pixels are visible remarkably in wh ite pattern, Set to HIGH by press [VOL (+)] button. Pres s [3] button

to go to CONF stage if the symptom is improved.

5. Press [OK] button in CONF stage to store LOW or HIGH.

6. Exit Service Mode by pressing [Power] button.

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