1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.
2. When wiring units (with cables, flexiblecables or lead wires)are supplied as repairparts and only one wire or some of the wires
have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the entire wiring unit instead.
3. When conducting repairs and servicing, do not twist the Faston connectors but plugthem straight inor 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.
2.2. Touch-Current Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such
as a water pipe, as shown in Figure 1.
3. Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reserve the AC plug in the AC outlet and repeat each of the above measure.
6. The potential at any point (TOUGH CURRENT) expressed as voltage U
For a. c.: U
For d. c.: U
= 35 V (peak) and U2= 0.35 V (peak);
1
= 1.0 V,
1
Note:
The limit value of U
= 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
2
mA d. c.
The limit value U
= 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.
1
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.
and U2, does not exceed the following values:
1
Figure 1
5
TH-58PH10BK / TH-58PH10EK
3 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 motionswhen handling unpackaged replacement ESdevices. (Otherwise ham lessmotion such as thebrushing
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).
6
TH-58PH10BK / TH-58PH10EK
4 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.
7
TH-58PH10BK / TH-58PH10EK
5 Service Hint
Board NameFunction
DNDigital Signal Processor, Microcomputer
DFormat Converter, Plasma AI Processor
DSSlot Interface (Audio / Video / Sync Input Switch),
2. Remove the Flexible Cables from the connectors (SS53,
SS54, SS55, SS56).
3. Remove 7 screws and then remove SS-Board.
12
TH-58PH10BK / TH-58PH10EK
6.14.2. Removal of C2-Board
1. Remove 3 screws and then remove the AC-Inlet Block.
2. Remove the Flexible Cables from the connectors (C20,
C21, C22).
3. Remove 8 screws (
from the connectors (CB5, CB6, CB7, CB8).
4. Remove 6 screws (
) and then remove the Flexible Cables
) and then remove C2-Board.
6.14.3. Removal of C3-Board
1. Remove 1 screw and then remove the Wire Support.
2. Remove the Flexible Cable from the connector (C32).
3. Disconnect the connectors (C33, C35).
4. Remove 6 screws (
from the connectors (CB9, CB10, CB11).
5. Remove 5 screws (
) and then remove the Flexible Cables
) and then remove C3-Board.
6.15. Removal of S1-Board
1. Remove 2 screws(H)and then removethe S1-Board Block.
2. Disconnect the connector (S34).
3. Remove 1 screw (J) and then remove S1-Board.
13
TH-58PH10BK / TH-58PH10EK
6.16. Removal of Fan
1. Disconnect the Fan Relay Connectors.
2. Remove 9 screws and then remove the 3 Fan Blocks.
3. Remove each 4 screws (K) and then remove the Fans.
6.17. Removal of V1-Board, V2Board and Operation Button
1. Remove the S1-Board Block.
(Refer to Removal of S1-Board)
2. Disconnect the connectors (DS2, DS15).
3. Remove 8 screws of the Escutcheon.
4. Reassemble the Fans in reverse order.
5. Stick the Cushion (Fan) around the Fan.
Note:
The Cushion of Fan is not re-usable.
Please use a new one when Fan exchange.
4. Pull the bottom of the Plasma Panel forward (arrow1).
5. Slide the Plasma Panel and then remove the Plasma Panel
(arrow2).
6. Remove 20 screws and then remove the Fixed Angle (A, B,
C).
7. Remove 1 screw (L).
8. Disconnect the connector (V2) and then remove V1-Board.
9. Remove the Operation Button from V2-Board.
10. Disconnect the connector (V15) and then remove V2-
Board.
14
6.18. Removal of Escutcheon and
Front Glass
1. Remove the S1-Board Block.
(Refer to Removal of S1-Board)
2. Disconnect the connectors (DS2, DS15).
3. Remove 8 screws of the Escutcheon.
TH-58PH10BK / TH-58PH10EK
Note: when Front Glass is exchanged
· Along each fixed Angles of an top and bottom, right
and left order and the sponge for the Front Glass is
pasted to the Front Glass.
4. Pull the bottom of the Plasma Panel forward (arrow1).
5. Slide the Plasma Panel and then remove the Plasma Panel
(arrow2).
Note
· The sponges are parts which cannot be recycled.
Please use the new article when you exchange the
Front Glass.
8. Remove 1 screw (L) and then remove V1-Board.
9. Remove V2-Board and Operation Button.
6. Remove 25 screws and then remove the Fixed Angle (A, B,
C, D).
7. Remove the Front Glass.
15
TH-58PH10BK / TH-58PH10EK
6.19. Removal of Plasma Panel
1. Disconnect the Fan Relay Connectors.
2. Remove 9 screws and then remove the 3 Fan Blocks.
3. Remove 8 screws and then remove the Reinforcement
Angle (L, R).
9. Remove 3 screws and then remove the Fixed Plate.
4. Disconnect the connectors (DS2, DS4, DS6, DS7, DS8,
DS15).
5. Remove the Flexible Cable from the connector (DS1).
6. Remove 4 screws and then remove the Slot Block.
10. Disconnect the connectors (P2, P9, P11, P12, P25).
11. Remove 8 screws (
12. Remove 2 screws (
Terminal Block (L, R).
13. Disconnect the connector (D20).
14. Remove the Flexible Cables from the connectors (C11,
C21).
15. Remove 4 screws and then remove D-Board.
) and then remove P-Board.
) and then remove the Speaker
7. Disconnect the connector (DN6).
8. Remove 4 screws and then remove DN-Board.
16
16. Remove SU-Board and SD-Board.
(Refer to Removal of SU-Board and SD-Board)
17. Remove 10 screws and then remove SC-Board.
TH-58PH10BK / TH-58PH10EK
24. Remove 3 screws and then remove the AC-Inlet Block.
25. Remove the Flexible Cables from the connectors (C10,
C20, C22, C32).
18. Remove SS2-Board and SS3-Board.
(Refer to Removal of SS2-Board and SS3-Board)
19. Disconnect the connectors (SS33, SS34, SS35).
20. Remove the Flexible Cables from the connectors (SS53,
SS54, SS55, SS56).
21. Remove 7 screws and then remove SS-Board.
22. Remove 2 screws ( ) and then remove the S1-Board Block.
23. Remove 1 screw (
) and then remove the Wire Support.
26. Remove 8 screws of the Escutcheon.
27. Remove the 10 Spacers and Spacer Rings from the Plasma
Panel.
17
TH-58PH10BK / TH-58PH10EK
Caution:
· Please confirm the installation place of Spacer and
Spacer Ring when you exchange the Plasma Panel,
and install Spacer and Spacer Ring in an original
installation place after exchanging the Plasma
Panel.
28. Lift up the bottom of the Plasma Panel in the direction of the
arrow 1 and pull the Plasma Panel in the direction of the
arrow 2 and then remove the Plasma Panel.
18
7 Location of Lead Wiring
7.1. Location of Lead Wiring (1)
The lead wiring is dressed as shown in figure.
TH-58PH10BK / TH-58PH10EK
19
TH-58PH10BK / TH-58PH10EK
7.2. Location of Lead Wiring (2)
The lead wiring is dressed as shown in figure.
20
8 Adjustment Procedure
TH-58PH10BK / TH-58PH10EK
8.1. Driver Set-up
8.1.1. Item / Preparation
1. Set Aging pattern 0 (Vset adjustment pattern) by IIC mode.
2. Set the picture controls as follows.
Picture menu: Standard
Picture: +25
Aspect: Full
Caution
1. First perform Vsus adjustment.
2. Confirmation of Vscn voltage should be performed after
confirmation of Vad adjustment.
When Vad=-100V, Voltage of Vscn is 45V ±4V.
8.1.2. Adjustments
Adjust driver section voltages. (Refer to the panel data on the
panel label).
Check or adjust the following voltages with the multimeter.
VbkTPVBK (SC)155V ± 1VVR6604 (SC)
SS BoardVeTPVE (SS)Ve ± 1VVR6000 (SS)*
D, DS, DN BoardWhite balance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625i signals
DN BoardSet Market Select Number to correct destination by MS mode. (See chap. 9.1.4)
*See the Panel label.
Caution:
Absolutely do not reduce Vsus voltage below Ve not to damage the P.C.B.
22
8.4. Adjustment Volume Location
TH-58PH10BK / TH-58PH10EK
8.5. Test Point Location
23
TH-58PH10BK / TH-58PH10EK
9 Service mode
9.1. CAT (computer Aided Test) mode
To exit the CAT mode, access the ID mode and switch off the main power.
9.1.1. IIC mode
Select the IIC mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button
on the remote control.
Subject and item are mentioned on “IIC mode structure”.
To exit the IIC mode, press the R button on the remote control.
24
TH-58PH10BK / TH-58PH10EK
9.1.2. CD mode
Select the CD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button
on the remote control more than 3 seconds.
Microcomputer software version (IC4702), this version can be upgrade by
1. replace of new version IC
2. Loading the new version software from loader tool, TZSC07036.
Memory data change
To exit the CD mode, press the R button on the remote control.
9.1.3. SD mode
Select the SD mode by Up/Down button on the remote control at the front page of CAT mode and then press the Action button
on the remote control.
To exit the SD mode, press the R button on the remote control.
25
TH-58PH10BK / TH-58PH10EK
9.1.4. MS mode
Select the MS mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button
on the remote control more than 3 seconds.
To exit the MS mode, press the R button on the remote control.
Caution:
Market Select should be set after exchange of DN-Board.
9North America (Hotel)25-10Europe (Hotel)26-11--27-12Britain (Hotel)28Middle East/Hong Kong
13--29Middle East/Hong Kong (Hotel)
14Thailand (Hotel)30Australia
15--31Australia (Hotel)
NumberDestination
Default setting
1North America
9.1.5. ID mode
Select the ID mode by Up/Down button on the remote control at the front page of CAT mode and then press the Mute button on
the remote control more than 3 seconds.
To exit the ID mode, press the R button on the remote control.
26
9.2. IIC mode structure (following items value is sample data.)
TH-58PH10BK / TH-58PH10EK
27
TH-58PH10BK / TH-58PH10EK
10 Adjustment
10.1. RGB white balance adjustment
Instrument NameConnectionRemarks
·RGB VGA W/B pattern
·Color analyzer
(Minolta CA-100 or equivalent)
ProcedureRemarks
·Ensure aging is adequate.
·Make sure the front panel to be used on the final set is fitted.
·Make sure a color signal is not being shown before adjustment.
·Put the color analyzer where there is little color variation.
1. Set COMPONET/RGB-IN SELECT to RGB.
2. Select the IIC mode “PANEL W/B Adj.” item.
3. Check that the color temperature is “COOL (High)”.
4. Output a white balance pattern.
5. Touch the signal receiver of color analyzer to the highlight window’s center.
6. Fix G drive at E0h and adjust B drive and R drive so x, y become the “Color temperature
High” in the below table.
7. Increase R/G/B together so the maximum drive value in R/G/B becomes FCh.
8. Set color temperature to “NORMAL (Medium)”.
9. Fix G drive at E0h and adjust B drive and R drive so the highlight window’s x, y becomes
the “Color temperature Medium” in the below table.
10. Increase R/G/B together so the maximum drive value in R/G/B becomes FCh.
11. Set color temperature to “WARM (Low)”.
12. Set G drive to E0h and adjust B drive and R drive so the highlight window’s x, y become
the “Color temperature Low” shown in the below table.
13. Increase R/G/B together so the maximum drive value in R/G/B becomes FCh.
14. Copy the R drive, G drive and B drive data in NTSC, PAL DVI region.
PC input
Panel surface
User setting: Normal
(Picture menu: Standard)
Picture Menu: Standard
Picture: 25
Aspect: Full
Position and size: Normal
·Highlight section Signal amplitude 75%
·Cutoff standard G: 80h
·Drive standard G: E0h
Adjustment target
Hi-light: x ± 0.003 y ± 0.003
Hi-light is target of the number at drive adjustment in the hi-light windows.
Therefore, it is not target of the hi-light number at after adjustment white balance.
28
TH-58PH10BK / TH-58PH10EK
29
TH-58PH10BK / TH-58PH10EK
10.2. HD white balance adjustment
Instrument NameConnectionRemarks
·HD W/B pattern (COMPONENT Output)
·Color analyzer
(Minolta CA-100 or equivalent)
ProcedureRemarks
·Ensure aging is adequate.
·Make sure the front panel to be used on the final set is fitted.
·Make sure a color signal is not being shown before adjustment.
·Put the color analyzer where there is little color variation.
1. Set COMPONENT/RGB-IN SELECT to COMPONENT.
2. Select the IIC mode "PANEL W/B Adj.” item.
3. Check that the color temperature is “COOL (High)”.
4. Output a white balance pattern.
5. Touch the signal receiver of color analyzer to the highlight window’s center.
6. Fix G drive at E0h and adjust B drive and R drive so x, y become the "Color temperature
High" in the below table.
7. Increase R/G/B together so the maximum drive value in R/G/B becomes FCh.
8. Set color temperature to “NORMAL (Medium)”.
9. Fix G drive at E0h and adjust B drive and R drive so the highlight window´s x, y becomes
the "Color temperature Medium" in the below table.
10. Increase R/G/B together so the maximum drive value in R/G/B becomes FCh.
11. Set color temperature to "WARM (Low)".
12. Set G drive to E0h and adjust B drive and R drive so the highlight window´s x, y become
the “Color temperature Low” shown in the below table.
13. Increase R/G/B together so the maximum drive value in R/G/B becomes FCh.
14. Copy the R drive, G drive and B drive data in YUV1_525ip, YUV3_625ip region.
PC input
Panel surface
User setting: Normal
(Picture menu: Standard)
Picture Menu: Standard
Picture: 25
Aspect: Full
Position and size: Normal
·Highlight section Signal amplitude 75%
·Cutoff standard G: 80h
·Drive standard G: E0h
Adjustment target
Hi-light: x ± 0.003 y ± 0.003
Hi-light is target of the number at drive adjustment in the hi-light windows.
Therefore, it is not target of the hi-light number at after adjustment white balance.
30
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