15.82. SS-Board (2 of 2), SS2 and SS3-Board Schematic
Diagram
16 Parts Location & Mech anica l Replacement Parts List
16.1. Parts Location
16.2. Packing Exploded Views
16.3. Packing Exploded Views
16.4. Mechanical Replacement Parts List
17 Elect rical Replaceme nt Parts List
17.1. Replacement Parts List Notes
17.2. Electrical Replacement Parts List
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162
163
163
164
165
166
167
167
168
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1 Applicable signals
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2 Safety Precautions
2.1. General Guidelines
1. 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.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
2.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two
prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between
the jumpered AC plug and each exposed metallic cabinet
part on the equipment such as screwheads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1Mohm and 5.2Mohm.
When the exposed metal does not have a return path to
the chassis, the reading must be
Figure 1
.
2.1.2. Leakage Current Hot Check (See
Figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use an
isolation transformer for this check.
2. Connect a 1.5kohm, 10 watts resistor, in parallel with a
0.15µF capacitors, 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 an AC voltmeter, with 1000 ohms/volt or more
sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the
voltage at each point.
5. Reverse the ACplugintheACoutlet and repeat eachof the
above measurements.
6. The potential at any point should not exceed 0.75 volts
RMS. A leakage current tester (Simpson Model 229 or
equivalent) may be used to make the hot checks, leakage
current must not exceed 1/2 milliamp. In case a
measurement is outside 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.
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3 Prevention of Electro Static 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 electro static 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 alminum
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, alminum 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 hamless motion such asthe 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).
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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.
To remove P.C.B. wait 1 minute after power was off for
discharge from electrolysis capacitors.
1. Disconnect the couplers (P5,P10, P12, P23, P25,P51, P53
and P55).
2. Remove the screws (×9
) and remove the P(P-2)-Board.
6.3. Remove the P(P-1)-Board
Caution:
To remove P.C.B. wait 1 minute after power was off for
discharge from electrolysis capacitors.
1. Disconnect the couplers (P2, P9, P11, P52, P54 and P56).
2. Remove the screws (×10
Board.
) and remove the P(P-1)-
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6.5. Remove the PA-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (PA2, PA5, PA10, PA31, PA32,
PA33, PA34, PA35, PA36 and PA40).
3. Disconnect the flexible cable (PA20).
4. Remove the screws (×4
unit.
5. Remove the screws (×4
) and remove the PA-Board
) and remove the PA-Board.
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2. Disconnect the couplers (D3, D5, DT10, H51, PA2, PA40
and relay couplers).
3. Disconnect the flexible cables (DG11 and PA20).
4. Remove the screws (×4
) remove the tuner unit.
6.6. Remove the D-Board
1. Remove the PA-Board unit. (See section 6.5.)
2. Disconnect the couplers (D3, D5, D20 and D25).
3. Disconnect the flexible cables (D31, D32, D33, D34, D35
and D36).
4. Remove the screws (×4
) and remove the D-Board.
6.8. Remove the DT-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the coupler (DT10).
3. Remove the screws (×5
(Be careful the coupler (DT12-DG22) when remove the DT-
Board.)
) remove the DT-Board unit.
6.7. Remove the tuner unit
1. Unlock the cable clampers to free the cable.
4. Remove the screws (×2).
5. Remove the DT-Board shield case cover.
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6. Release the DT-Board shield case body claws (×6).
7. Remove the DT-Board.
6.9. Remove the DG-Board
1. Remove the DT-Board unit. (See section 6.8.)
2. Remove the screws (×8
metal frame.
) and remove the DT-Board
3. Disconnect the couplers (DG2, DG3 and DG5).
4. Disconnect the flexible cables (DG1, DG11 and DG20).
5. Remove the screw (×1
) and remove the DG-Board.
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6.10. Remove the H-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (H2, H40 and H51).
3. Disconnect the flexible cable (H1).
4. Remove the screws (×5
) and remove the H-Board.
6.12. Remove the Fan (Big and
Middle/L)
1. Disconnect the relay coupers.
2. Remove the screws (×4
and Middle/L).
3. Remove the screws (×8
the Fan (Middle/L).
) and remove the Fan unit (Big
) and remove the Fan (Big) and
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6.11. Remove the Fan (Middle/R)
1. Disconnect the relay couper.
2. Remove the screws (×4
(Middle/R).
3. Remove the screws (×4
(Middle/R).
) and remove the Fan unit
) and remove the Fan
6.13. Remove the Fan (SC)
1. Disconnect the relay coupers.
2. Remove the screws (×4
3. Remove the screws (×8
) and remove the Fan unit (SC).
) and remove the Fans (SC×2).
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6.14. Remove the Fan (SS)
1. Disconnect the relay coupers.
2. Remove the screws (×4
3. Remove the screws (×4
) and remove the Fan unit (SS).
) and remove the Fan (SS).
6.16. Remove the Shield cover (B)
and (C)
1. Remove the screws (×2each).
2. Remove the Shield cover (B) and (C).
6.17. Remove the H3-Board (L, R)
1. Remove the screws (×2each) and remove the Speaker
Terminal unit (L, R).
6.15. Remove the Shield cover (A)
1. Remove the screws (×4).
2. Remove the Shield cover (A).
2. Remove the screw (×1each) and the screws (×2
each).
3. Disconnect the coupler (H37).
4. Remove the H3-Board.
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6.18. Remove the Esc-fixing metal
(A)
1. Remove the screws (×4each).
2. Remove the Esc-fixing metal (A).
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6.21. Remove the SD-Board
6.19. Remove the Esc-fixing metal
(B)
1. Remove the screws (×6each).
2. Remove the Esc-fixing metal (B).
6.20. Remove the SU-Board
1. Remove the screws (×4).
2. Remove the flexible cables (SU1, SU2, SU3,SU4 and SU5)
connected to the SU-Board and remove the bridge
connector (SU45).
3. Slide the SU-Board to the left to disconnect from couplers
(SC41-SU41 and SC42-SU42) on the SC-Board and
remove the SU-Board.
1. Remove the screws (×4).
2. Remove the flexible cables (SD1, SD2, SD3,SD4 and SD5)
connected to the SD-Board and remove the bridge
connector (SD46).
3. Slide the SD-Board to the left to disconnect from couplers
(SC43-SD43 and SC44-SD44) on the SC-Board and
remove the SD-Board.
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6.22. Remove the SC-Board
6.24. Remove the SS3-Board
1. Unlock the cable clampers to free the cable.
2. Remove the Fan (SC). (See section 6.13.)
3. Remove the SU-Board and SD-Board. (See section 6.20.
and 6.21.)
4. Disconnect the couplers (SC2, SC20 and SC23).
5. Remove the screws (×10
) and remove the SC-Board.
1. Unlock the cable clampers to free the cable.
2. Disconnect the coupler (SS27) and disconnect the flexible
cables (SS57 and SS58).
3. Remove the screws (×3
) and remove the SS3-Board.
6.23. Remove the SS2-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the coupler (SS23) and disconnect the flexible
cables (SS51 and SS52).
3. Remove the screws (×3
) and remove the SS2-Board.
6.25. Remove the SS-Board
1. Unlock the cable clampers to free the cable.
2. Remove the Fan (SS). (See section 6.14.)
3. Disconnect the couplers (SS11, SS12, SS23, SS27, SS35,
SS42 and SS44).
4. Disconnect the flexible cables (SS53, SS54, SS55 and
SS56).
5. Remove the screws (×10
) and remove the SS-Board.
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6.26. Remove the Reinforcement
Angles (L, R) and the
Connection Plate (A, B, C, D)
1. Remove the plasma panel section from the servicing stand
and lay on a flat surface such as a table (covered), with the
plasma panel surface facing downward.
Spread a soft cloth or similar on the table for protection, so
the panel surface is not scratched.
2. Remove the screws (×2
Reinforcement Angles (L, R).
3. Remove the screws (×2
Connection Plate (A, B, C, D).
each) and remove the
each) and remove the
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6.28. Remove the C2-Board
1. Remove the Fan unit (Big and Middle/L). (See section
6.12.)
2. Remove the Esc-fixing metal (B). (See section 6.19.)
3. Remove the flexible cables holder fastening screws (×10
).
4. Disconnect the flexible cables (CA6, CA7, CA8, CA9, and
CA10).
5. Disconnect the flexible cables (C21, C22, C24 and C25).
6. Remove the screws (×6
) and remove the C2-Board.
6.27. Remove the C1-Board
1. Remove the Fan unit (Middle/R). (See section 6.11.)
2. Remove the Esc-fixing metal (A) and (B).(Seesection 6.18.
and 6.19.)
3. Remove the Reinforcement Angle (R). (See section 6.26.)
4. Remove the flexible cables holder fastening screws (×10
).
5. Disconnect the flexible cables (CA1, CA2, CA3, CA4 and
CA5).
6. Disconnect the flexible cables (C10 and C11).
7. Remove the screws (×6
) and remove the C1-Board.
6.29. Remove the C3-Board
1. Remove the Fan unit (Big and Middle/L). (See section
6.12.)
2. Remove the Esc-fixing metal (A) and (B).(Seesection 6.18.
and 6.19.)
3. Remove the Reinforcement Angle (L). (See section 6.26.)
4. Remove the flexible cables holder fastening screws (×10
).
5. Disconnect the flexible cables (CA11, CA12, CA13, CA14
and CA15).
6. Disconnect the flexible cable (C31).
7. Disconnect the coupler (C35).
8. Remove the screws (×6
) and remove the C3-Board.
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6.30. Remove the C4-Board
6.32. Remove the C6-Board
1. Remove the Speaker Terminal unit (L). (See section 6.17.)
2. Remove the Esc-fixing metal (A) and (B).(Seesection 6.18.
and 6.19.)
3. Remove the Reinforcement Angle (L). (See section 6.26.)
4. Remove the flexible cables holder fastening screws (×10
).
5. Disconnect the flexible cables (CB11, CB12, CB13, CB14
and CB15).
6. Disconnect the flexible cable (C41).
7. Disconnect the couplers (C42 and C44).
8. Remove the screws (×6
) and remove the C4-Board.
1. Remove the Speaker Terminal unit (R). (See section 6.17.)
2. Remove the Esc-fixing metal (A) and (B).(Seesection 6.18.
and 6.19.)
3. Remove the Reinforcement Angle (R). (See section 6.26.)
4. Remove the flexible cables holder fastening screws (×10
).
5. Disconnect the flexible cables (CB1, CB2, CB3, CB4 and
CB5).
6. Disconnect the flexible cables (C60 and C61).
7. Remove the screws (×6
) and remove the C6-Board.
6.31. Remove the C5-Board
1. Remove the tuner unit. (See section 6.7.)
2. Remove the Esc-fixing metal (B). (See section 6.19.)
3. Remove the flexible cables holder fastening screws (×10
).
4. Disconnect the flexible cables (CB6, CB7, CB8, CB9 and
CB10).
5. Disconnect the flexible cables (C51, C52, C54 and C55).
6. Remove the screws (×6
) and remove the C5-Board.
6.33. Remove the front bracket
1. Remove the Shield cover (A). (See section 6.15.)
2. Unlock the cable clampers to free the cable.
3. Disconnect the couplers (G1, G4 and G51).
4. Disconnect the flexible cable (GH11).
5. Remove the screws (×2
) and remove the front bracket.
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6.34. Remove the G-Board, GHBoard and GK-Board
1. Remove the front bracket. (See section 6.33.)
2. Remove the screws (×3
cover.
) and remove the front bracket
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6.35. Remove the GS-Board
3. Remove the screws (×5).
4. Remove the screws (×1) and remove the terminal shield
holder.
1. Remove the Shield cover (B). (See section 6.16.)
2. Remove the screws (×3
3. Remove the SD card unit.
4. Remove the screws (×2).
5. Disconnect the coupler (G52).
6. Remove the GS-Board.
).
5. Remove the screws (×4) and disconnect the couplers
(G3-GK3).
6. Remove the G-Board and GH-Board.
7. Release the control button claws (×2
8. Remove the GK-Board.
).
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6.36. Remove the K-Board, R-Board
and the S-Board
1. Unlock the cable clampers to free the cable.
2. Disconnect the couplers (G1 and G4). (See section 6.33.)
3. Remove the screws (×6
left-assembly.
4. Remove the screw (×1).
5. Disconnect the coupler (R4) and remove the R-Board.
) and remove the L/Front Panel-
6.37. Remove the Plasma panel
section from the Front frame
(glass)
6. Remove the screws (×2).
7. Disconnect the couplers (K1 and K2) and remove the KBoard.
1. Remove the Esc-fixing metal (A) and (B).(Seesection 6.18.
and 6.19.)
2. Remove the front frame and the plasma panel fastening
screws (×6
3. Remove the spacers and spacer rings (×12).
).
8. Remove the screws (×2) and remove the S-Board unit.
9. Disconnect the coupler (S1).
10. Remove the screws (×2
) and remove the S-Board.
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4. For leaving the plasma panel from the front frame, pull the
bottom of the front frame forward, lift, and remove.
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6.38. Replace the plasma panel
(finished)
1. Place the new plasma panel (finished) on the flat surface of
the table (covered by a soft cloth), with the plasma panel
surface facing downward.
2. Attach the C1, C2, C3,C4,C5-Board and the C6-Board,
connect the flexible cables (×30) from the Plasma panel to
the C1, C2, C3,C4,C5-Board and the C6-Board, and fit the
flexible cable holders.
3. Attach the Hooks (left, right) and fit the Reinforcement
Angles (L, R) and the Connection Plate (A, B, C, D) to the
new plasma panel.
4. Place the plasma panel section on the servicing stand.
5. Place the spacers and spacer rings (×12).
6. Attach the front frame and each P.C.Board and so on, to
the new plasma panel.
* When fitting the front frame, be careful to allow any debris,
dust or handling residue to remain between the front glass and
plasma panel.
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7 Caution statement
7.1. Caution statement.
Caution:
Please confirm that all flexible cables are assembled correctly.
Also make sure that they are locked in the connectors.
Verify by giving the flexible cables a very slight pull.
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8 Location of Lead Wiring
8.1. Lead of Wiring (1)
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8.2. Lead of Wiring (2)
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8.3. Lead of Wiring (3)
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8.4. Lead of Wiring (4)
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8.5. Lead of Wiring (5)
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9 Self-check Function
Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timing
9.1. Check of the IIC bus lines
9.1.1. How to access
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.