Panasonic Viera TH-P50ST30A User manual

© Panasonic Corporation 2011.
Unauthorized copying and distribution is a violation
of law.
ORDER NO.PAVCTH1104014CE
Plasma Television
Model No. TH-P50ST30A
TH-P50ST30Z
GPF14D-A Chassis

2
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------------------------------------------9
5.1. Specification of KEY for CI Plus, DTCP-IP,
WIDEVINE and One-to-One ----------------------------9
5.2. USB HDD Recording --------------------------------------9
6 Service Mode ----------------------------------------------------- 10
6.1. How to enter into Service Mode ---------------------- 10
6.2. Option - Mirror--------------------------------------------- 12
6.3. Service tool mode---------------------------------------- 12
6.4. Hotel mode------------------------------------------------- 13
6.5. Data Copy by SD Card --------------------------------- 14
7 Troubleshooting Guide---------------------------------------- 17
7.1. Check of the IIC bus lines------------------------------ 17
7.2. Power LED Blinking timing chart --------------------- 18
7.3. No Power--------------------------------------------------- 18
7.4. No Picture-------------------------------------------------- 19
7.5. Local screen failure-------------------------------------- 20
8 Service Fixture & Tools --------------------------------------- 21
8.1. SC jig -------------------------------------------------------- 21
9 Disassembly and Assembly Instructions --------------- 22
9.1. Remove the Rear cover -------------------------------- 22
9.2. Remove the AC inlet ------------------------------------ 22
9.3. Remove the P-Board------------------------------------ 22
9.4. Remove the P2-Board ---------------------------------- 22
9.5. Remove the Side terminal cover and the
shield metals ---------------------------------------------- 23
9.6. Remove the A-Board------------------------------------ 23
9.7. Remove the Side unit assy ---------------------------- 23
9.8. Remove the SU-Board---------------------------------- 24
9.9. Remove the SD-Board---------------------------------- 24
9.10. Remove the SC-Board---------------------------------- 24
9.11. Remove the SS-Board---------------------------------- 24
9.12. Remove the SS2-Board -------------------------------- 25
9.13. Remove the Fan------------------------------------------ 25
9.14. Remove the Speakers ---------------------------------- 25
9.15. Remove the Stand bracket----------------------------- 25
9.16. Remove the S-Board------------------------------------ 25
9.17. Remove the Contact metal bottom B---------------- 26
9.18. Remove the Plasma panel section from the
Cabinet assy----------------------------------------------- 26
9.19. Remove the Contact metals and the Bottom
support metal---------------------------------------------- 26
9.20. Remove the C1-Board ---------------------------------- 26
9.21. Remove the C2-Board ---------------------------------- 27
9.22. Remove the C3-Board ---------------------------------- 27
9.23. Remove the K-Board------------------------------------ 27
9.24. Remove the V-Board ------------------------------------ 27
9.25. Replace the Plasma panel----------------------------- 27
10 Measurements and Adjustments-------------------------- 28
10.1. Adjustment ------------------------------------------------ 28
11 Block Diagram --------------------------------------------------- 35
11.1. 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) -------------------------------------------------- 42
12.4. Wiring (3) -------------------------------------------------- 42
12.5. Wiring (4) -------------------------------------------------- 43
12.6. Wiring (5) -------------------------------------------------- 43
13 Schematic Diagram
14 Printed Circuit Board
15 Exploded View

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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 Fasten connectors but plug them straight in or unplug them straight
out.
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 (TOUCH CURRENT) expressed as voltage U1and U2, does not exceed the following values:
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 U2= 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
mA d. c.
The limit value U1= 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.
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.
Figure 1

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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 Elec-
trostatically 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).

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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.

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3 Service Navigation
3.1. PCB Layout
Board Name Function Board Name Function
P Power Supply C1 Data Driver (Lower Right)
P2 Power Supply C2 Data Driver (Lower Center)
A Main AV input, processing C3 Data Driver (Lower Left)
K Remote receiver, Power LED, C.A.T.S sensor SC Scan Drive
S Power switch SS Sustain Drive
V 3D Eyewear transmitter SS2 Sustain out
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.

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3.2. Applicable signals
COMPONENT (Y, PB/CB, PR/CR), HDMI
* Mark: Applicable input signal
PC (from D-sub 15P)
Applicable input signal for PC is basically compatible to VESA standard timing.
PC (from HDMI terminal)
Applicable input signal for PC is basically compatible to HDMI standard timing.
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.
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 *
Signal name Horizontal frequency (kHz) Vertical frequency (Hz)
640 ×400 @70 Hz 31.47 70.07
640 ×480 @60 Hz 31.47 59.94
640 ×480 @75 Hz 37.50 75.00
800 ×600 @60 Hz 37.88 60.32
800 ×600 @75 Hz 46.88 75.00
800 ×600 @85 Hz 53.67 85.06
852 ×480 @60 Hz 31.44 59.89
1,024 ×768 @60 Hz 48.36 60.00
1,024 ×768 @70 Hz 56.48 70.07
1,024 ×768 @75 Hz 60.02 75.03
1,024 ×768 @85 Hz 68.68 85.00
1,280 ×1,024 @60 Hz 63.98 60.02
1,280 ×768 @60 Hz 47.70 60.00
1,366 ×768 @60 Hz 48.39 60.04
Macintosh13" (640 ×480) 35.00 66.67
Macintosh16" (832 ×624) 49.73 74.55
Macintosh21" (1,152 ×870) 68.68 75.06
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

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4 Specifications
Power
Power rating AC 220-240 V, 50 / 60 Hz 2.4 A
Normal (Home) mode 153 W
Standby condition 0.3 W
Display panel
Aspect Ratio 16:9
Visible screen size 127 cm (diagonal)
1,105 mm (W) ×622 mm (H)
Number of pixels 2,073,600 (1,920 (W) ×1,080 (H)) [5,760 ×1,080 dots]
Sound
Speaker (140 mm ×35 mm) ×2, 6 Ω
Audio Output 20 W ( 10 W + 10 W )
Headphones M3 (3.5 mm) stereo mini Jack ×1
PC signals VGA, SVGA, WVGA, XGA
SXGA, WXGA ...... (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
Digital TV 7 MHz VHF/UHF (Australia) free-to-air TV broadcast reception
8 MHz UHF (New Zealand) 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)
Aerial - Rear Standard Belling & Lee connector (A), VHF/UHF (Z)
Operating Conditions
Temperature: 0 °C - 35 °C
Humidity: 20 % - 80 % RH (non-condensing)
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 synchronisation)
PB/CB, PR/CR± 0.35 V [p-p]
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)
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)
Audio Output
AUDIO L - R RCA PIN Type ×2 0.5 V [rms] (high impedance)
Others
HDMI1 - 4 Input TYPE A Connectors • This TV supports "HDAVI control 5" 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)
DIGITAL AUDIO OUT PCM / Dolby Digital / DTS, Fiber optic
Card slot SD Card slot ×1
USB 1/2/3 USB 2.0 TYPE A Connectors DC 5 V, Max. 500 mA
ETHERNET 10BASE-T / 100BASE-TX
Dimensions (W ×H ×D) 1,204 mm ×779 mm ×335 mm (With Pedestal)
1,204 mm ×744 mm ×69 mm (TV only)
Mass 30.0 kg Net (With Pedestal)
26.0 kg Net (TV only)
Note
• Design and Specifications are subject to change without notice. Mass and Dimensions shown are approximate.

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5 Technical Descriptions
5.1. Specification of KEY for CI Plus, DTCP-IP, WIDEVINE and One-to-One
5.1.1. General information:
1. EEPROM (IC8902) for spare parts has the seed of KEY for each.
2. The final KEY data will be generated by Peaks IC (IC8000) when SELF CHECK was done and are stored in both Peaks IC
(IC8000) and EEPROM (IC8902).
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 (IC8000) is replaced, EEPROM (IC8902) should be also replaced with new one the same time.
When EEPROM (IC8902) is replaced, Peaks IC (IC8000) 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:
5.2. USB HDD Recording
5.2.1. General information:
Digital TV programmes can be recorded in USB HDD.
A One-to-One key generated in A-board by SELF CHECK binds TV and USB-HDD for communication.
That key is only one key for them. If the key is difference, TV can not access USB-HDD.
Caution:
New key will be generated by following SELF CHECK and previous TV programmes recorded in USB HDD will not be
viewed.
SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for
more than 3 seconds.
Model No. Keys
One-to-One
(For USB Rec.)
WIDEVINE
TH-P50ST30A/Z

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6 Service Mode
6.1. How to enter into Service Mode
6.1.1. Purpose
After exchange parts, check and adjust the contents of adjustment mode.
While pressing [VOLUME ( - )] button of the main unit, press [i] button of the remote control three times within 2 seconds.
Note:
Service Mode can not be entered when 3D signal input.
Input 2D signal to enter Service Mode.
6.1.2. 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 reverse direction
[GREEN] button...All Sub items Selection in forward direction
[VOL] button...Value of sub items change in forward direction ( + ), in reverse direction ( - )
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.

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6.1.4. 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.
Main item Sub item Sample Data Remark
ADJUST CONTRAST 000
COLOR 3D
TINT 00
SUB-BRT 800
H-POS 0
H-AMP 0
V-POS 0
V-AMP 0
WB-ADJ R-CUT 80
G-CUT 80
B-CUT 80
R-DRV FF
G-DRV F2
B-DRV 8E
ALL-CUT 80
ALL-DRV FF
OPTION Panel-Type 50FHD Factory Preset
Boot ROM
STBY-SET 00
EMERGENCY ON
Y/C Delay
OPT 1 10110000
OPT 2 00100010
OPT 3 00000001
OPT 4 00010000
EDID-CLK MID
MIRROR 00 (See Option-Mirror)
AMR-SELECT OFF
VSUS LOW See Vsus selection
AGING ALL WHITE Built-in test patterns can be
displayed.
ALL BLUE WITH WHITE OUTSIDE FRAME
ALL GREEN
ALL RED
LOW STEP WHITE
LOW STEP BLUE
LOW STEP GREEN
LOW STEP RED
WHITE DIAGONAL STRIPE
RED DIAGONAL STRIPE
GREEN DIAGONAL STRIPE
BLUE DIAGONAL STRIPE
A-ZONE & B-ZONE
1% WINDOW
COLOR BAR
9 POINTS BRIGHT MEASURE
2 DOT OUTSIDE FRAME
ALL BLUE
DOUBLE FIXED 1% WINDOW
VERTICAL LINE SCROLL
ON/OFF OR WHITE
R/G/B/W ROTATION
HALF FIXED ALL WHITE
ALL WHITE WITH COUNT DISPLAY
SRV-TOOL 00 See Service tool mode

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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, Count
Note : To display TIME/COUNT menu, highlight position, then press MUTE for 3 sec.
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.
6.3.4. Exit
1. Disconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.

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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:
While pressing [VOLUME (-)] button of the main unit,
press [AV] button of the remote control three times within
2 seconds.
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/Analogue TV/Digital TV/AV1/AV2/AV3/PC/
HDMI1/HDMI2/HDMI3/HDMI4
• Off: give priority to a last memory.
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
Adjust maximum volume.
Range :
0 to 100
Button Lock Select local key conditions.
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.
Remote Lock Select remote control key conditions.
Selection :
Off/SETUP/MENU
• Off: altogether valid
• SETUP: only Setup menu is invalid
• MENU: Picture/Sound/Setup menu are invalid
Private Information Select private information for VIERA Cast is Keep
or Reset if Hotel mode is set to [On] when TV
power on.
Selection :
Keep/Reset
• Keep: private information for VIERA Cast is
keep
• Reset: private information for VIERA Cast is
reset

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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 installing 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 rename, and then change the name and extension of the
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 card.

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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

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6.5.4. Data copy from 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.

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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] button on the remote control
for more than 3 seconds.
7.1.1.2. Self-check indication and forced to factory shipment setting:
Caution:
New key will be generated and previous TV programmes recorded in USB HDD will not be viewed. (See Chap.5)
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.
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.
DISPLAY Check Ref. No. Description Check P.C.B.
TUN TU4801 TUNER A-BOARD
STBY IC8000 PEAKS-LDA3(STM) A-BOARD
MEM1 IC8902 PEAKS EEPROM A-BOARD
MEM2 IC8901 STM EEPROM A-BOARD
AVSW IC3001 AUDIO/VIDEO SW A-BOARD
TEMP IC3753 TEMP SENSOR A-BOARD
LAN IC8601 ETHERPHY A-BOARD
ID A-BOARD
ID2 A-BOARD
LP1 IC9300 LP1 A-BOARD
HDMI-SW IC4700 HDMI SW A-BOARD
IRDRV IC5901 IR LED DRIVER A-BOARD

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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.
*Use SC jig to isolate the board.
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.
Blinking Times Contents Check point
1 Panel information SOS
LP1 Start SOS
-
3 P+ 3.3V SOS A-Board
4 Power SOS P-Board
P2-Board
5 P+ 5V SOS A-Board
6DriverSOS1
(SC Energy recovery circuit)
(A-SC FPC DET)
SC-Board
A-SC FPC
7DriverSOS2
(SU/SD Connector DET)
(SU/SD Scan and Logic IC)
SU-Board
SD-Board
*
8DriverSOS3
(SS FPC DET)
(SS Energy recovery circuit)
SS-Board
SS2-Board
SS FPC
SS2 FPC
9 Discharge Control SOS A-Board
10 Sub 5V SOS
Sub 3.3V SOS
Tuner power SOS
A-Board
SC-Board
SS-Board
P-Board
P2-Board
11 FAN SOS A-Board
FAN
12 Sound SOS A-Board
Speaker
13 Emergency SOS A-Board
14 IROM SOS (ROM in Peaks IC) A-Board
P-Board

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7.4. No Picture

20
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