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ORDER NO.PAVCTH1203004CE
Plasma Television
Model No. TH-P50XT50A
TH-P50XT50D
TH-P50XT50G
TH-P50XT50K
TH-P50XT50M
TH-P50XT50P
TH-P50XT50S
TH-P50XT50V
GPF15D-A Chassis
© Panasonic Corporation 2012.
Unauthorized copying and distribution is a violation
of law.
TABLE OF CONTENTS
PAGE
1 Safety Precautions -----------------------------------------------3
1.1. General Guidelines ----------------------------------------3
1.2. Touch-Current Check--------------------------------------3
2 Warning --------------------------------------------------------------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 DTCP-IP, One-to-
One, Widevine and Netflix ---------------------------- 10
5.2. USB HDD Recording (A only)------------------------- 10
5.3. Panel-Type setting --------------------------------------- 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. DRV Check - USBHDD Check------------------------ 14
6.5. Hotel mode------------------------------------------------- 14
6.6. 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 Disassembly and Assembly Instructions --------------- 23
8.1. Disassembly Flow Chart for the Unit ---------------- 23
8.2. Disassembly Procedure for the Unit----------------- 24
9 Measurements and Adjustments -------------------------- 28
9.1. Adjustment ------------------------------------------------- 28
10 Block Diagram --------------------------------------------------- 31
10.1. Main Block Diagram ------------------------------------- 31
10.2. Block (1/4) Diagram ------------------------------------- 32
10.3. Block (2/4) Diagram ------------------------------------- 33
10.4. Block (3/4) Diagram ------------------------------------- 34
10.5. Block (4/4) Diagram ------------------------------------- 35
11 Wiring Connection Diagram --------------------------------- 37
11.1. Caution statement.--------------------------------------- 37
11.2. Wiring (1) --------------------------------------------------- 37
11.3. Wiring (2) --------------------------------------------------- 38
11.4. Wiring (3) --------------------------------------------------- 39
12 Schematic Diagram
13 Printed Circuit Board
14 Exploded View
2
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 U1 and 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
3
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).
4
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.
5
3 Service Navigation
3.1. PCB Layout
Board Name Function
PSS Power Supply, Sustain Drive
Non serviceable.
PSS-Board should be exchanged for service.
A Main AV input, processing
K Remote receiver, Power LED, C.A.T.S sensor
C1 Data Driver (Lower Right)
C2 Data Driver (Lower Left)
SN Scan Drive
6
3.2. Applicable signals
COMPONENT (Y, PB, PR) (from AV2 terminal), HDMI
Signal name COMPONENT HDMI
525 (480) / 60i, 60p * *
625 (576) / 50i, 50p * *
750 (720) / 60p, 50p * *
1,125 (1,080) / 60i, 50i * *
1,125 (1,080) / 60p, 50p, 24p *
* Mark: Applicable input signal
PC (from D-sub 15P)
Signal name Horizontal frequency (kHz) Vertical frequency (Hz)
640 × 480 @60 Hz 31.47 59.94
800 × 600 @60 Hz 37.88 60.32
852 × 480 @60 Hz 31.44 59.89
1,024 × 768 @60 Hz 48.36 60.00
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
Applicable input signal for PC is basically compatible to VESA standard timing.
PC (from HDMI terminal)
Signal name Horizontal frequency (kHz) Vertical frequency (Hz)
640 × 480 @60 Hz 31.47 60.00
1,280 × 720 @60 Hz 45.00 60.00
1,920 × 1,080 @60 Hz 67.50 60.00
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 show fine detail with sufficient clarity.
7
4 Specifications
Sound
Speaker (160 mm × 40 mm) × 2, 8
Audio output 20 W ( 10 W + 10 W )
Headphones M3 (3.5 mm) stereo mini Jack × 1
Receiving systems / Band name (A)
PAL B/G Reception of Off air broadcasts
Digital TV 7 MHz VHF/UHF (Australia) free-to-air TV broadcast reception
PAL 60 Hz Playback of NTSC tape from some PAL Video recorders (VCR)
M.NTSC Playback from M.NTSC Video recorders (VCR)
NTSC Playback from NTSC Video recorders (VCR)
Receiving systems / Band name
(Except A)
Receiving Channels (Except A)
VHF BAND
2-12 (PAL/SECAM B, K1) 0-12 (PAL B AUST.)
1-9 (PAL B N.Z.) 1-12 (PAL/SECAM D)
1-12 (NTSC M Japan) 2-13 (NTSC M USA)
UHF BAND
21-69 (PAL G, H, I/SECAM G, K, K1)
28-69 (PAL B AUST.) 13-57 (PAL D, K)
13-62 (NTSC M Japan) 14-69 (NTSC M USA)
CATV
S1-S20 (OSCAR) 1-125 (USA CATV)
C13-C49 (JAPAN) S21-S41 (HYPER)
Z1-Z37 (CHINA) 5A, 9A (AUST.)
Aerial - Rear Standard Belling & Lee connector (A), VHF/UHF (Except A)
Operating Conditions
Temperature: 0 °C - 40 °C (Except A) 0 °C - 35 °C (A)
Humidity: 20 % - 80 % RH (non-condensing)
Connection terminals
AV1 IN
AUDIO L - R RCA PIN Type × 2 0.5 V [rms]
VIDEO RCA PIN Type × 1 1.0 V [p-p] (75 )
AUDIO OUT
AUDIO L-R RCA PIN Type × 2 0.5 V [rms] (high impedance)
AV2 IN
AUDIO L - R RCA PIN Type × 2 0.5 V [rms]
COMPONENT Y 1.0 V [p-p] (including synchronization)
PB/CB, PR/CR ± 0.35 V [p-p]
VIDEO RCA PIN Type × 1 1.0 V [p-p] (75 )
HDMI 1 / 2 input TYPE A Connectors
· This TV supports "HDAVI control 5" function.
PC HIGH-DENSITY D-SUB 15PIN
R,G, B: 0.7 V [p-p] (75 )
HD, VD: TTL Level 2.0 - 5.0 V [p-p] (high impedance)
· Applicable input signals: VGA, SVGA, WVGA, XGA
SXGA, WXGA ...... (compressed)
Card slot SD Card slot × 1
ETHERNET 10BASE-T / 100BASE-TX
USB 1 / 2 USB 2.0 TYPE A Connectors DC 5 V, Max. 500 mA
DIGITAL AUDIO OUT PCM / Dolby Digital / DTS, Fiber optic
Bluetooth wireless technology*1
Standard Compliance Bluetooth 3.0
Frequency Range 2.402 GHz - 2.480 GHz
*1: Not all the Bluetooth compatible devices are available with this TV.
Power Source (Except A) AC 220 - 240 V, 50 / 60 Hz (Except P)
AC 110 - 240 V, 50 / 60 Hz (P)
8
Power Consumption (A)
Power rating AC 220-240 V, 50 / 60 Hz 1.4 A
Normal (Home) mode 122 W
Standby condition 0.4 W
Power Consumption (Except A)
Power Rating 265 W (Except P) 270 W (P)
Standby condition 0.4 W
Display panel
Panel system Plasma panel
Visible screen size (diagonal) 127 cm / 50 inches
Number of pixels 786,432 (1,024 (W) × 768 (H)), [3,072 × 768 dots]
Dimensions (W × H × D) 1,186 mm × 764 mm × 335 mm (With Pedestal)
1,186 mm × 717 mm × 84 mm (TV only)
Mass 25.5 kg Net (With Pedestal)
22.0 kg Net (TV only)
Note
· Design and Specifications are subject to change without notice. Mass and Dimensions shown are approximate.
9
5 Technical Descriptions
5.1. Specification of KEY for DTCP-IP, One-to-One, Widevine and Netflix
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).
Four 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:
Model No. Keys
One-to-One DTCP-IP WIDEVINE Netflix
(For USB Rec.)
TH-P50XT50D/G/K/M/P/S/V None None Yes Yes
TH-P50XT50A Yes Yes Yes Yes
5.2. USB HDD Recording (A only)
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.
5.3. Panel-Type setting
Panel-Type setting is required after exchange the A-board.
A-board for spare parts is common use for different inch size in same series.
Go into Service Mode and confirm/select Panel-Type in OPTION to correct inch size.
10
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.
11
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 36
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 F8
G-DRV FF
B-DRV D1
ALL-CUT 80
ALL-DRV FF
OPTION Panel-Type 50HD Factory Preset
Boot ROM
STBY-SET 00
EMERGENCY ON
CLK MODE 00
CLOCK 000
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
MIDDLE BLUE WITH MAGENTA OUTSIDE FRAME displayed.
MIDDLE STEP GREEN
MIDDLE STEP RED
LOW STEP WHITE
ALL BLUE
ALL GREEN
ALL 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
DOUBLE FIXED 1% WINDOW
VERTICAL LINE SCROLL
ON/OFF
R/G/B/W ROTATION WITH COUNT DISPLAY
HALF FIXED ALL WHITE
ALL WHITE WITH COUNT DISPLAY
SRV-TOOL 00 See Service tool mode
DRV CHECK USBHDD CHECK 00 See DRV Check-USBHDD Check
12
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 except 2nd and 1st occurrence after shipment 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.
13
6.4. DRV Check - USBHDD Check
1. Select [DRV Check - USBHDD Check] in Service Mode.
2. Press [OK] button on the remote control for more than 3 seconds.
6.5. Hotel mode
1. Purpose Item Function
Restrict a function for hotels. Hotel Mode Select hotel mode On/Off
Initial INPUT Select input signal modes.
2. Access command to the Hotel mode setup menu
Set the input, when each time power is switched
In order to display the Hotel mode setup menu: on.
While pressing [VOLUME (-)] button of the main unit, Selection :
press [AV] button of the remote control three times within Off,Analogue TV,Digital TV,AV1,AV2,PC,HDMI1,
2 seconds. HDMI2
· Off: give priority to a last memory.
Initial POS Select programme number.
Then, the Hotel mode setup menu is displayed. 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 Adjust maximum volume.
Level 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.)
3. To exit the Hotel mode setup menu · ALL: altogether invalid.
Remote Lock Select remote control key conditions.
Disconnect AC power cord from wall outlet.
Selection :
4. Explain the Hotel mode setup menu 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
14
6.6. Data Copy by SD Card
6.6.1. 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.
6.6.2. 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.
15
6.6.3. 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
16
6.6.4. 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.
17
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 USB HDD
Recording) (A only)
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main 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.
DISPLAY Check Ref. No. Description Check Point
TUN TU6705 TUNER A-BOARD
STBY IC8000 PEAKS-LD4(STM) A-BOARD
MEM1 IC8902 PEAKS EEPROM A-BOARD
MEM2 IC8900 NAND FLASH A-BOARD
PANEL IC9300 PD6H A-BOARD
TEMP IC2001 TEMP SENSOR A-BOARD
LAN IC8650 ETHERPHY A-BOARD
ID ID A-BOARD
ID2 ID2 A-BOARD
BT IC8000, A50 BLUETOOTH A-BOARD/BLUETOOTH
7.1.4. Exit
Disconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.
18
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.
Blinking Times Contents Check point
1 Panel information SOS -
PD Start SOS
2 P+15V SOS A-Board
PSS-Board
3 IROM BOOT PROGRAM SOS A-Board
PSS-Board
4 Power SOS PSS-Board
6 Driver SOS1 SN-Board
(SN/PSS Energy recovery circuit) PSS-Board
(A-SN FPC DET) A-SN FPC
7 Driver SOS2 SN-Board
(SN Connector DET)
(SN Scan and Logic IC)
8 Driver SOS3 PSS-Board
(PSS FPC DET) PSS FPC
9 Discharge Control SOS A-Board
10 Sub 3.3V SOS A-Board
Tuner power SOS SN-Board
BE SOS PSS-Board
12 Sound SOS A-Board
Speaker
13 Emergency SOS A-Board
20 2nd BOOT PROGRAM SOS A-Board
(Watchdog timer over flow)
21 2nd BOOT PROGRAM SOS A-Board
(System error)
22 2nd BOOT PROGRAM SOS A-Board
(Main system bus freeze)
23 2nd BOOT PROGRAM SOS A-Board
(Accidental interrupt signal)
24 2nd BOOT PROGRAM SOS A-Board
(NAND Flash memory data transfer error finish)
25 2nd BOOT PROGRAM SOS A-Board
(Unsupported NAND Flash memory)
19
7.3. No Power
First check point
There are following 2 states of No Power indication by power LED.
1. No lit
2. Green is lit then turns red blinking a few seconds later. (See Power LED Blinking timing chart)
3. Only red is lit.
20
7.4. No Picture
21
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
22
8 Disassembly and Assembly Instructions
8.1. Disassembly Flow Chart for the Unit
This is a disassembly chart.
When assembling, perform this chart conversely.
23
8.2. Disassembly Procedure for the Unit
8.2.1. Remove the Pedestal stand 8.2.4. Remove the Bluetooth module
1. Remove the Plasma panel section from the servicing 1. Remove the screw (×1 ) and remove the Bluetooth
stand and lay on a flat surface such as a table (covered module.
by a soft cloth) with the Plasma panel surface facing
downward.
2. Remove the screws (×4 ).
3. Slide the Pedestal stand to the downside and remove the
Pedestal stand.
8.2.5. Remove the Rear cover
1. Remove the screws (×22 , ×6 , ×2 ).
2. Remove the M8 caps (×4 ).
3. Remove the Rear cover.
8.2.2. Remove the Stand bracket cover
1. Remove the screws (×4 ) and remove the Stand
bracket cover.
8.2.6. Remove the Key button
1. Remove the screws (×2 ).
2. Remove the Key button.
8.2.3. Remove the AC cord clamper B
1. Remove the screws (×2 ) and remove the AC cord
clamper B.
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8.2.7. Remove the PSS-Board 8.2.9. Remove the Speakers
Caution: 1. Unlock the cable clampers and the tapes to free the
To remove P.C.B. wait 1 minute after power was off for cables.
discharge from electrolysis capacitors. 2. Disconnect the Speaker terminal.
1. Disconnect the connectors (P2 and P35). 3. Remove the screws (×2 each) and remove the
2. Disconnect the bridge connector (A6-P6). Speakers (L, R).
3. Disconnect the flexible cables (SS52 and SS55).
4. Remove the screws (×5 , ×1 , ×1 ) and remove
the PSS-Board.
8.2.10. Remove the SN-Board
1. Remove the flexible cables (SN21, SN22, SN23, SN24,
SN25, AN26, SN27 and SN28) connected to the SN-
Board.
2. Disconnect the connector (SN2).
3. Disconnect the flexible cable (SN20).
4. Remove the screws (×5 ) and remove the SN-Board.
8.2.8. Remove the A-Board
1. Unlock the cable clampers and the tapes to free the
cables.
2. Disconnect the connectors (A1, A12 and A50).
3. Disconnect the bridge connector (A6-P6).
4. Disconnect the flexible cables (A20 and A30).
5. Remove the screws (×4 ) and remove the Side shield
metal.
6. Remove the A-Board.
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8.2.11. Remove the BT connector clamper 8.2.13. Remove the M8 nut metals
1. Unlock the cable clampers and the tapes to free the 1. Remove the screw (×1 each) and remove the M8 nut
cables. metals.
2. Remove the claws (×2 ) and remove the BT cable.
3. Disconnect the connector (K1) and remove the A1-K1
cable.
4. Remove the claws (×2 ) and remove the BT connector
clamper.
8.2.14. Remove the K-Board
1. Remove the screw (×1 ).
2. Disconnect the connector (K1) and remove the K-Board
from the LED panel.
8.2.12. Remove the Stand bracket plate
1. Remove the Hanger metals (L, R) fastening screws (×6 8.2.15. Remove the Cabinet assy from the
, ×2 ) and remove the Stand bracket plate.
Plasma panel section.
1. Place the Cabinet assy on a flat surface of a table
(covered by a soft cloth) and a cushion.
2. Remove the screws (×3 ).
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3. Remove the Cabinet assy from the Plasma panel section. 8.2.19. Replace the Plasma panel
Caution:
Place the Plasma panel on a flat surface of a table
(covered by a soft cloth) and a cushion.
8.2.16. Remove the Contact metal bottom
1. Remove the screws (×8 ) and remove the Contact
metal bottom. A new Plasma panel itself without Contact metals is fragile.
To avoid the damage to new Plasma panel, carry a new
Plasma panel taking hold of the Contact metal bottom.
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.
8.2.17. Remove the C1-Board 3. Attach the Cabinet assy and each P.C.Board and so on,
1. Disconnect the flexible cables (CB1, CB2, CB3 and CB4). to the new Plasma panel.
2. Disconnect the flexible cable (C10).
3. Remove the screws (×4 ) and remove the C1-Board.
8.2.18. Remove the C2-Board
1. Disconnect the flexible cables (CB5, CB6, CB7 and CB8).
2. Disconnect the flexible cables (C20 and C21).
3. Disconnect the connector (C25).
4. Remove the screws (×4 ) and remove the C2-Board.
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9 Measurements and Adjustments
9.1. Adjustment
9.1.1. 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 white pattern, Set to HIGH by press [VOL (+)] button. Press [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.
Notes:
Do not overwrite because data is written in Peaks-EEPROM after executing adjustment of V-SUS Voltage.
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9.1.2. White balance adjustment
Name of measuring instrument Remarks
Color analyzer
(Minolta CS-2000 or equivalent)
Procedure Remarks
1. Enter the Service mode.
2. Receive the Analog-RF (except for no signal) or set CVBS/YUV/HDMI (no signal is
available).
3. Select [WB-ADJ] by using [1] and [2] key in the remote controller.
4. Check that the colour balance and the viewing mode is the values written in table1 and 2.
5. [INNER PATTERN] is displayed by using [5] key by using [5] key in the remote controller.
6. Select [G-CUTOFF] by using the [3] and [4] key in the remote controller, and set the value
to [80] by using the volume [+] and [-] key.
Also, [B-CUTOFF] and [R-CUTOFF] set to [80]
7. Set [G-DRIVE] value to the initial data (ex. D0).
8. Set the color analyzer and adjust color point to the values written in table1 by using [B-
DRIVE] and [R-DRIVE]
9. Increase RGB-DRIVE value so that the maximum drive value of one of R-DRIVE or G-
DRIVE or B-DRIVE should become [FF]
([ALL-DRIVE] set to [FF].)
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30
10 Block Diagram
10.1. Main Block Diagram
A MAIN AV INPUT,PROCESSING
HDMI1-2
ARC
(HDMI2) ETHERNET DATA
TMDS DATA LAN CON I/F ETHERPHY ETHERNET
HDMI I/F
ARC_OUT USB
IFD_OUT USB I/F USB_1-2
TUNER TUNER I/F
USB
A50 BLUETOOTH
R/G/B/H/V
PC R/G/B/H/V PEAKS-LD4
V SD CARD DATA
CVBS
AV1 L/R SD CARD I/F SD CARD
L/R AV IN
V/Y/PB/PR
AV2 VIDEO/ V/YPbPr/RGB/YC
L/R
COMPONENT L/R
L/R OUT
AUDIO OUT LO1_L/R STM
AUDIO
HP L/R OUT
HEADPHONE HP_L/R (LED:10TIMES)
SUB+3.3V_SENSE SUB3.3V
DIGITAL DIGITAL AUDIO OUT TUNER_POWER_SOS
SOUND_SOS(LED:12TIMES)
IEC_OUT TUNER_POWER_SOS SUB3.3V SUB3.3V
P+15V_DET (LED:2TIMES)
AUDIO OUT (LED:10TIMES)
ASDOUT0 STB3.3V STB3.3V
SOS4_PS (LED:4TIMES)
LED_R/G A1 K1 LED_R/G
NAND NAND FLASH I/F
REMOTE_IN REMOTE_RECEIVER
PANEL_MAIN_ON
FLASH CPU BUS
C.A.T.S_SENSOR C.A.T.S_SENSOR
PANEL_SOS
PEAKS IIC1
EEPROM
K POWER LED
LVDS I/F