Panasonic TX-P42G30E-J, TX-PF42G30 Schematic

ORDER NO.PCZ1103028CE

Plasma Television

Model No. TX-P42G30E

TX-P42G30J

TX-PF42G30

GPF14D-E Chassis

© Panasonic Corporation 2011.

Unauthorized copying and distribution is a violation of law.

TABLE OF CONTENTS

PAGE			PAGE
1 Safety Precautions -----------------------------------------------	3	11 Wiring Connection Diagram	-------------------------------- 41
1.1. General Guidelines ----------------------------------------	3	11.1. Caution statement. --------------------------------------	41
1.2. Touch-Current Check--------------------------------------	3	11.2. Wiring (1) --------------------------------------------------	41
2 Warning --------------------------------------------------------------	4	11.3. Wiring (2) --------------------------------------------------	42
2.1. Prevention of Electrostatic Discharge (ESD)		11.4. Wiring (3) --------------------------------------------------	43
to Electrostatically Sensitive (ES) Devices ----------	4	11.5. Wiring (4) --------------------------------------------------	43
2.2. About lead free solder (PbF) ----------------------------	5	12 Schematic Diagram
3 Service Navigation------------------------------------------------	6	13 Printed Circuit Board
3.1. PCB Layout--------------------------------------------------	6	14 Exploded View
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 Disassembly and Assembly Instructions---------------	21
8.1. Remove the Rear cover --------------------------------	21
8.2. Remove the AC inlet ------------------------------------	21
8.3. Remove the P-Board------------------------------------	21
8.4. Remove the Side terminal cover ---------------------	21
8.5. Remove the Tuner unit ---------------------------------	21
8.6. Remove the A-Board------------------------------------	22
8.7. Remove the Side unit assy ----------------------------	22
8.8. Remove the Speakers ----------------------------------	22
8.9. Remove the SN-Board----------------------------------	22
8.10. Remove the SS-Board----------------------------------	23
8.11. Remove the Fan------------------------------------------	23
8.12. Remove the Stand bracket-----------------------------	23
8.13. Remove the C1-Board ----------------------------------	23
8.14. Remove the C2-Board ----------------------------------	23
8.15. Remove the Chassis support metals and the
M8 nut metals ---------------------------------------------	24
8.16. Remove the Contact metal bottom B----------------	24
8.17. Remove the Plasma panel section from the
Cabinet assy-----------------------------------------------	24
8.18. Remove the Contact metals ---------------------------	25
8.19. Remove the K-Board------------------------------------	25
8.20. Replace the Plasma panel-----------------------------	25
9 Measurements and Adjustments --------------------------	26
9.1. Adjustment-------------------------------------------------	26
10 Block Diagram ---------------------------------------------------	35
10.1. Main Block Diagram -------------------------------------	35
10.2. Block (1/4) Diagram -------------------------------------	36
10.3. Block (2/4) Diagram -------------------------------------	37
10.4. Block (3/4) Diagram -------------------------------------	38
10.5. Block (4/4) Diagram -------------------------------------	39

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	Board Name	Function
P	Power Supply	C1	Data Driver (Lower Right)
	Non serviceable
		C2	Data Driver (Lower Left)
	P-Board should be exchange for service
		SN	Scan Drive
A	Main AV input, processing	SS	Sustain Drive
K	Remote receiver, Power LED, C.A.T.S. sensor

6

3.2.Applicable signals

COMPONENT (Y, PB, PR), HDMI

* Mark: Applicable input signal

			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		*

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.

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4 Specifications

Power Source	AC 220-240 V, 50 / 60 Hz
Power Consumption
Rated Power Consumption	275 W
On mode Average Power	122 W
Consumption	(based on IEC 62087 Ed.2 measurement method)
Standby Power Consumption	0.40 W
	16.00 W (With monitor out recording)
Display panel
Aspect Ratio	16:9
Visible screen size	106 cm (diagonal)
	921 mm (W) × 518 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
Receiving Systems / Band name	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/tv/

Aerial input	VHF / UHF
Operating Conditions	Temperature:	0 °C- 35 °C
	Humidity:	20 % - 80 % RH (non-condensing)
Connection Terminals
AV1 (SCART)	21 Pin terminal (Audio/Video in, Audio/Video out, RGB in, Q-Link)
AV2 input	VIDEO:	RCA PIN Type × 1 1.0 V [p-p] (75 Ω)
	AUDIO L-R:	RCA PIN Type × 2 0.5 V [rms]
COMPONENT input	Y:	1.0 V [p-p] (including synchronization)
	PB, PR:	±0.35 V [p-p]
HDMI1 / 2 / 3 / 4 input	TYPE A Connectors
	HDMI1 / 3 / 4 :	HDMI (Version 1.4 with Content Type), Deep Colour,
		x.v.Colour™
	HDMI2 :	HDMI (Version 1.4 with Content Type, Audio Return Channel,
		Deep Colour, x.v.Colour™
	• This TV supports "HDAVI Control 5" function.
Card slot	SD CARD slot × 1
	Common Interface slot (complies with CI Plus) × 1
ETHERNET	RJ45, IEEE802.3 10BASE-T / 100BASE-TX
USB 1 / 2 / 3	USB2.0 DC 5 V, Max. 500 mA
AUDIO OUT	RCA PIN Type × 2	0.5 V [rms] (high impedance)
DIGITAL AUDIO OUT	PCM / Dolby Digital / DTS, Fiber optic
Dimensions (W × H × D)	1,020 mm × 675 mm × 320 mm (With Pedestal)
	1,020 mm × 640 mm × 70 mm (TV only)
Mass	24.0 kg Net (With Pedestal)
	20.5 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, EN55022, EN55024

8

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:

Model No.			Keys
	One-to-One	CI Plus		DTCP-IP	WIDEVINE
	(For USB Rec.)
TX-P42G30E	Yes	Yes		Yes	Yes
TX-P42G30J	Yes	Yes		Yes	Yes
TX-PF42G30	Yes	Yes		Yes	Yes

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.

9

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 [0] button of the remote control three times within 2 seconds.

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.

10

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			1EE
	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			FF
	G-DRV			E9
	B-DRV			91
	ALL-CUT			80
	ALL-DRV			FF
OPTION	Panel-Type			42FHD		Factory Preset
	Boot			ROM
	STBY-SET			00
	EMERGENCY			ON
	Y/C Delay			0
	OPT 1			00010100
	OPT 2			11101110
	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						See Service tool mode
		Destination
		Check sum		9031

11

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 3 sec.

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.

12

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/DVB-C/DVB-T/AV1/AV2/COMPO-
	NENT/HDMI1/HDMI2/HDMI3/HDMI4
	• Off: give priority to a last memory. However,
	Euro model is compulsorily set to TV.
	• AVnS/AVnC: only Euro model selectable
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	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.)
	• 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

13

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.

14

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

15

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.

16

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 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 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	IC2001	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

7.1.4.Exit

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

17

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	-
	LP1 Start SOS
3	P+ 3.3V SOS	A-Board
4	Power SOS	P-Board
5	P+ 5V SOS	A-Board
6	Driver SOS1	SN-Board
	(SN Energy recovery circuit)	A-SN FPC
	(A-SN FPC DET)
7	Driver SOS2	SN-Board
	(SN Connector DET)
	(SN Scan and Logic IC)
8	Driver SOS3	SS-Board
	(SS FPC DET)	SS FPC
	(SS Energy recovery circuit)
9	Discharge Control SOS	A-Board
10	Sub 5V SOS	A-Board
	Sub 3.3V SOS	SN-Board
	Tuner power SOS	SS-Board
		P-Board
11	Fan SOS	A-Board
		Fan
12	Sound SOS	A-Board
		Speaker
13	Emergency SOS	A-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.

18

7.4.No Picture

19

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

20

8 Disassembly and Assembly Instructions

8.1.Remove the Rear cover

1. See PCB Layout (Section 3)

8.2.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 screws (×2 ) and remove the AC inlet.

8.4.Remove the Side terminal

cover

1.Remove the screws (×2 ).

2.Remove the Side terminal cover.

8.5.Remove the Tuner unit

8.3.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, P9, P11, P34 and P35).

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

1.Remove the Side terminal cover. (See section 8.4.)

2.Unlock the cable clampers to free the cable.

3.Disconnect the connectors (A1, A6, A8, A11 and A35).

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

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

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8.6.Remove the A-Board

1.Remove the Tuner unit. (See section 8.5.)

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

8.7.Remove the Side unit assy

1.Disconnect the connector (C14).

2.Remove the screws (×2 ) and remove the Side unit complete.

3.Remove the screws (×2 ).

4.Disconnect the connector.

5.Remove the Side unit assy from the Side unit metal.

8.8.Remove the Speakers

1.Unlock the cable clampers to free the cable.

2.Disconnect the Relay connector.

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

8.9.Remove the SN-Board

1.Disconnect the flexible cables (SN21, SN22, SN23, SN24, SN25, SN26, SN27 and SN28) connected to the SN-Board.

2.Disconnect the connector (SN2).

3.Disconnect the flexible cable (SN20).

4.Remove the screws (×8 ) and remove the SN-Board.

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8.10. Remove the SS-Board

1.Remove the Tuner unit. (See section 8.5.)

2.Disconnect the connector (SS11).

3.Disconnect the flexible cable (SS33).

4.Disconnect the flexible cables (SS61 and SS66).

5.Remove the screws (×7 ) and remove the SS-Board.

8.11. Remove the Fan

1.Unlock the cable clampers to free the cable.

2.Remove the screws (×3 ).

3.Remove the Relay connector and remove the Fan.

8.12. Remove the Stand bracket

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 AC inlet. (See section 8.2.)

3.Remove the Stand bracket fastening screws (×5 , ×4 ) and the Stand bracket.

8.13. Remove the C1-Board

1.Remove the Stand bracket. (See section 8.12.)

2.Disconnect the flexible cables (CB1, CB2, CB3, CB4, CB5, CB6 and CB7).

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

4.Disconnect the connector (C14).

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

8.14. Remove the C2-Board

1.Remove the Stand bracket. (See section 8.12.)

2.Disconnect the flexible cables (CB8, CB9, CB10, CB11, CB12, CB13, CB14 and CB15).

3.Disconnect the flexible cables (C20, C21 and C23).

4.Disconnect the connector (C25).

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

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8.15. Remove the Chassis support metals and the M8 nut metals

1.Remove the Stand bracket. (See section 8.12.)

2.Remove the screws (×3 each) and remove the Chassis support metal (L, R) and the M8 nut metal top (L, R).

3.Remove the screw (×1 each) and remove the M8 nut metal bottom (L, R).

8.17. Remove the Plasma panel section from the Cabinet assy

1.Place the Cabinet assy on a flat surface of a table (covered by a soft cloth) and a cushion.

2.Remove the Contact metal bottom B. (See section 8.16.)

3.Remove the screws (×6 ).

8.16. Remove the Contact metal bottom B

1.Remove the Stand bracket. (See section 8.12.)

2.Remove the screws (×5 , ×7 ).

3.Remove the Contact metal bottom B.

4. Remove the Plasma panel section from the Cabinet assy.

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8.18. Remove the Contact metals

1.Remove the Cabinet assy. (See section 8.17.)

2.Remove the Tape from the Contact metals.

3.Remove the screws (×8 ).

4.Remove the Contact metal side (L, R).

5.Remove the screws (×6 ).

6.Remove the Contact metal top.

7.Remove the screws (×15 ).

8.Remove the Contact metal bottom A.

8.20. Replace the Plasma panel

Caution:

Place the Plasma panel on a flat surface of a table (covered by a soft cloth) and a cushion.

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 metals.

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.

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

8.19. Remove the K-Board

1.Remove the Contact metal bottom B. (See section 8.16.)

2.Remove the screw (×1 ).

3.Remove the claw (×1 ).

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

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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.

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9.1.2.		Sub-Contrast adjustment
		Name of measuring instrument		Connection	Remarks
	RF generator
	Base Band signal generator
	HD signal generator
		Steps			Remarks
	Connect IIC cable (bus controller-cable) after banner OSD appear.				Note:
	And after SRQ-L, begin an adjustment 2 seconds later.				Sub-contrast adjustment is unadjusted
					for AV/ HD input.
	Adjustment of TV (RF system)				But, when needing the adjustment cho-
	Note:				sen manually, please refer to [ alterna-
					tive method ].
	In adjustment, you must setting to modulation of signal at 90%.

1. Receive a RF PAL 100% Full White or Split Colour bar shown as below.

2.Goes into service mode.

3.Push a [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ CONTRAST ].

Adjustment

1. The colour key yellow button of remote control is pushed. 2. The OSD character of sub-contrast becomes red.

(Inside under automatic adjustment)

3. The OSD character of sub-contrast returns to black. When [NG] is displayed, adjustment failure.

4. End.

Steps	Remarks
Another procedure
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
Adjustment of AV system
1. PAL 100% Full White or Split Colour bar receive AV1(or AV2), shown as below.

2.Goes into service mode.

3.Push [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ Contrast ].

Adjustment

1.The colour key yellow button of remote control is pushed.

2.The OSD character of sub-contrast becomes red. (Inside under automatic adjustment)

3.The OSD character of sub-contrast returns to black. When [NG] is displayed, adjustment failure.

4.End.

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	Steps	Remarks
Another procedure
Connect IIC cable (bus controller-cable) after banner OSD appear.
And after SRQ-L, begin an adjustment 2 seconds later.
Adjustment of HD system
1.	At 1080i 100% Full White or Split colour bar receive component signal, as shown below.
2.	Goes into service mode.
3.	Push [ 1 ] or [ 2 ] key, and goes into adjustment mode for [ Contrast ].
Adjustment
1.	The colour key yellow button of remote control is pushed.
2.	The OSD character of sub-contrast becomes red.
	(Inside under automatic adjustment)
3.	The OSD character of sub-contrast returns to black.
	When [NG] is displayed, adjustment failure.
4.	End.

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9.1.3.THX white balance adjustment

The adjusting method is different according to the PEAKS EEPROM version.

[copy adjustment] : Peaks EEPROM ver.1.00-

[Differential (Normal) + copy + WARM adjustment] : Peaks EEPROM ver.1.**-

Name of measuring instrument	Connection	Remarks
W/ B pattern	Panel surface
Color analyzer
(Minolta CA-100 or equivalent)
Steps		Remarks
[copy adjustment]		Picture menu : Dynamic
Connect IIC cable (bus controller-cable) after banner OSD appear.		ASPECT : 16:9
And after SRQ-L, begin an adjustment 2 seconds later.		Condition is same at
• Make sure the front panel to be used on the final set is fitted.
		alternative method too.

•Make sure a color signal is not being shown before adjustment.

•Put the color analyzer where there is little color variation.

Note:

Copy Adjustment method in service mode.

When you push [OK] key in each item,

Adjustment data is copied between HD data and SD data.

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Steps	Remarks
1. Enter the Service mode.	METHOD=01
Please receive the Analog-RF.	copy adjustments
Or, please select CVBS/YUV/HDMI. (No inputting is possible.).
(Forbid Analog-RF with no signal.)

2.A number key [1] or [2] are operated and [WB-ADJ] is displayed. Check that the color temp is [COOL].

3.A number key [0] is operated and select [METHOD 01].

4.A number key [5] is operated and [INNER PATTERN] is displayed.

[INNER PATTERN]

5.Select [G-CUTOFF] item, using the number-key [3] or [4], and set to [80], using the volume-key [+] or [-]. Also, [B-CUTOFF] and [R-CUTOFF] set to [80].

6.Set [G-DRIVE] at [D0].

7.Touch the signal receiver of color analyzer to the INNER PATTERN center, and adjust B drive and R drive so x, y become the [COLOR TEMP COOL] in the below table1.

8.All RGB drive increase so that the maximum drive value of RGB may become [FF]. ([ALL-DRIVE] set to [FF].)

9.Set color balance to [NORMAL] using [7] key.

10.Fix G-CUTOFF, B-CUTOFF and R-CUTOFF at [80].

11.Set [G-DRIVE] at [D0].

12.Adjust B-DRIVE and R-DRIVE so the INNER PATTERN x, y become the [COLOR TEMP NORMAL] in the table 1.

13.All RGB drive increase so that the maximum drive value of RGB may become [FF]. ([ALL-DRIVE] set to [FF].)

14.Set color balance to [WARM] using [7] key.

15.Set Picture menu to [CINEMA] using [9] key.

16.A number key [5] is operated and [INNER PATTERN] is displayed.

[INNER PATTERN]

17.Fix G-CUTOFF, B-CUTOFF and R-CUTOFF at [80].

18.Set [G-DRIVE] at [D0].

19.Adjust B-DRIVE and R-DRIVE so the INNER PATTERN x, y become the [COLOR TEMP WARM] in the table 1.

20.All RGB drive increase so that the maximum drive value of RGB may become [FF]. ([ALL-DRIVE] set to [FF].)

21.Confirm [METHOD=01].

Please refer table2-3 to address.

22.Asking matter to execute white balance difference adjustment.

Please feed back the DAC value in the adjusted each color temperature in an internal pattern.

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