Philips 55PFL5505D/F7, 55PFL5705D/F7 Schematic

LCD TV

chassis PL10.8

Service Manual

Contents

55” 55PFL5505D/F7 55” 55PFL5705D/F7 55” 55PFL5705DV/F7

All rights reserved. No part of this manual may be reproduced, copied, transmitted, disseminated, transcribed, downloaded or stored in any storage medium, in any form or for any purpose without the express prior written consent of Funai. Furthermore, any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.

Information in this document is subject to change without notice. Funai reserves the right to change the content herein without the obligation to notify any person or organization of such changes.

with the design is a registered trademark of Funai Electric Co., Ltd and may not be used in any way without the express written consent of Funai. All other trademarks used herein remain the exclusive property of their respective owners. Nothing contained in this manual should be construed as granting, by implication or otherwise, any license or right to use any of the trademarks displayed herein. Misuse of any trademarks or any other content in this manual is strictly prohibited. Funai shall aggressively enforce its intellectual property rights to the fullest extent of the law.

A01R5UF/A01R6UF/A01R9UF

101016

IMPORTANT SAFETY NOTICE

Proper service and repair is important to the safe, reliable operation of all P&F Equipment. The service procedures recommended by P&F and described in this service manual are effective methods of performing service operations. Some of these service special tools should be used when and as recommended.

It is important to note that this service manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It also is important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. P&F could not possibly know, evaluate and advice the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way. Consequently, P&F has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by P&F must first use all precautions thoroughly so that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected.

The LCD panel is manufactured to provide many years of useful life. Occasionally a few non active pixels may appear as a tiny spec of color. This is not to be considered a defect in the LCD screen.

TABLE OF CONTENTS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Cabinet Disassembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

How to Initialize the LCD TV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Schematic Diagrams and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1

SPECIFICATIONS

< TUNER / NTSC >

ANT. Input ---------------------- 75 Ω Unbal., F type

Description Condition Unit Nominal Limit

1. AFT Pull-In Range --- MHz ±2.3 ±2.1 20

20 23

2. Synchronizing Sens.

TV.ch.4 CA.ch.31 CA.ch.87

dBµ dBµ dBµ

18 18 18

< TUNER / ATSC >

Description Condition Unit Nominal Limit

1. Received Freq. Range (-28dBm) --- kHz --- ±100

2. ATSC Dynamic Range (min / max)

ch.4 ch.10 ch.41

dBm dBm dBm

---

-76/0

-76/+4

< LCD PANEL >

Description Condition Unit Nominal Limit

1. Native Pixel Resolution

2. Brightness (w / filter) --- cd/m

3. Viewing Angle

Horizontal

Vert ical

Horizontal

Vert ical

pixels pixels

° °

1920 1080

2

350 ---

-88 to 88

---

< VIDEO >

Description Condition Unit Nominal Limit

1. Over Scan

2. Color Temperature (component1)

3. Resolution (composite video)

Horizontal

Vert ical

--x y

Horizontal

Vert ical

% %

°K 12000

line line

5 5

0.272

0.278 400

350

5±5 5±5

--±3% ±3%

---

< AUDIO >

All items are measured across 6 Ω load at speaker output terminal with L.P.F.

Description Condition Unit Nominal Limit

1. Audio Output Distortion (ATSC 0 dBfs)

2. Audio Distortion (NTSC) 500mW: Lch/Rch % 0.5/0.5 2.0/2.0

3. Audio Freq. Response (NTSC)

Lch/Rch W 10.0/10.0 9.0/9.0

-

6dB: Lch

-

6dB: Rch

Hz Hz

70 to 10 k 70 to 10 k

---

1-1 PL10.8SP

IMPORTANT SAFETY PRECAUTIONS

Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.

Safety Precautions for LCD TV Circuit

1. Before returning an instrument to the

customer, always make a safety check of the

entire instrument, including, but not limited to, the following items:

a. Be sure that no built-in protective devices are

defective and have been defeated during servicing. (1) Protective shields are provided on this chassis to protect both the technician and the customer. Correctly replace all missing protective shields, including any removed for servicing convenience. (2) When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all protective devices, including but not limited to, nonmetallic control knobs, insulating fishpapers, adjustment and compartment covers/shields, and isolation resistor/capacitor networks. Do not operate this instrument or

permit it to be operated without all protective devices correctly installed and functioning. Servicers who defeat safety features or fail to perform safety checks may be liable for any resulting damage.

b. Be sure that there are no cabinet openings

through which an adult or child might be able to insert their fingers and contact a hazardous voltage. Such openings include, but are not limited to, (1) spacing between the Liquid Crystal Panel and the cabinet mask, (2) excessively wide cabinet ventilation slots, and (3) an improperly fitted and/or incorrectly secured cabinet back cover.

c. Antenna Cold Check - With the instrument AC

plug removed from any AC source, connect an electrical jumper across the two AC plug prongs. Place the instrument AC switch in the on position. Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and, if applicable, to the coaxial connector. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohm, an abnormality exists that must be corrected before the instrument is returned to the customer. Repeat this test with the instrument AC switch in the off position.

d. Leakage Current Hot Check - With the

instrument completely reassembled, plug the AC line cord directly into a 120 V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL) 1410, (50.7). With the instrument AC switch first in the on position and then in the off position, measure from a known earth ground (metal water pipe, conduit, etc.) to all exposed metal parts of the instrument (antennas, handle brackets, metal cabinet, screw heads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 milli-ampere. Reverse the instrument power cord plug in the outlet and repeat the test.

READING SHOULD NOT BE ABOVE 0.5 mA

LEAKAGE

DEVICE

BEING

TESTED

TEST ALL EXPOSED METAL SURFACES

ALSO TEST WITH PLUG REVERSED USING AC ADAPTER PLUG AS REQUIRED

ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE INSTRUMENT TO THE CUSTOMER OR BEFORE CONNECTING THE ANTENNA OR ACCESSORIES.

2. Read and comply with all caution and safety-

related notes on or inside the receiver cabinet, on the receiver chassis, or on the Liquid Crystal Panel.

CURRENT

TESTER

+

EARTH GROUND

_

2-1 LTVN_ISP

3. Design Alteration Warning - Do not alter or add to the mechanical or electrical design of this TV receiver. Design alterations and additions, including, but not limited to circuit modifications and the addition of items such as auxiliary audio and/or video output connections, might alter the safety characteristics of this receiver and create a hazard to the user. Any design alterations or additions will void the manufacturer's warranty and may make you, the servicer, responsible for personal injury or property damage resulting therefrom.

4. Hot Chassis Warning a. Some TV receiver chassis are electrically

connected directly to one conductor of the AC power cord and maybe safety-serviced without an isolation transformer only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC power source. To confirm that the AC power plug is inserted correctly, with an AC voltmeter, measure between the chassis and a known earth ground. If a voltage reading in excess of

1.0 V is obtained, remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground.

b. Some TV receiver chassis normally have 85V

AC(RMS) between chassis and earth ground regardless of the AC plug polarity. This chassis can be safety-serviced only with an isolation transformer inserted in the power line between the receiver and the AC power source, for both personnel and test equipment protection.

c. Some TV receiver chassis have a secondary

ground system in addition to the main chassis ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulation material that must not be defeated or altered.

5. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a. near sharp edges, b. near thermally hot parts-be sure that leads and components do not touch thermally hot parts, c. the AC supply, d. high voltage, and, e. antenna wiring. Always inspect in all areas for pinched, out of place, or frayed wiring. Check AC power cord for damage.

6. Components, parts, and/or wiring that appear to have overheated or are otherwise damaged should be replaced with components, parts, or wiring that meet original specifications. Additionally, determine the cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard.

7. Product Safety Notice - Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified by a # on schematics and in parts lists. Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire, and/or other hazards. The product's safety is under review continuously and new instructions are issued whenever appropriate. Prior to shipment from the factory, our products are strictly inspected to confirm they comply with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.

2-2 LTVN_ISP

Precautions during Servicing

A. Parts identified by the # symbol are critical for

safety. Replace only with part number specified.

B. In addition to safety, other parts and assemblies

are specified for conformance with regulations applying to spurious radiation. These must also be replaced only with specified replacements. Examples: RF converters, RF cables, noise blocking capacitors, and noise blocking filters, etc.

C. Use specified internal wiring. Note especially:

1) Wires covered with PVC tubing

2) Double insulated wires

3) High voltage leads

D. Use specified insulating materials for hazardous

live parts. Note especially:

1) Insulation Tape

2) PVC tubing

3) Spacers

4) Insulators for transistors.

E. When replacing AC primary side components

(transformers, power cord, etc.), wrap ends of wires securely about the terminals before soldering.

F. Observe that the wires do not contact heat

producing parts (heat sinks, oxide metal film resistors, fusible resistors, etc.)

G. Check that replaced wires do not contact sharp

edged or pointed parts.

H. When a power cord has been replaced, check that

5~6 kg of force in any direction will not loosen it.

I. Also check areas surrounding repaired locations. J. Use care that foreign objects (screws, solder

droplets, etc.) do not remain inside the set.

K. When connecting or disconnecting the internal

connectors, first, disconnect the AC plug from the AC supply outlet.

L. When installing parts or assembling the cabinet

parts, be sure to use the proper screws and tighten certainly.

2-3 LTVN_ISP

Safety Check after Servicing

Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards.

1. Clearance Distance

When replacing primary circuit components, confirm specified clearance distance (d) and (d') between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)

Table 1: Ratings for selected area

Chassis or Secondary Conductor

Primary Circuit

AC Line Voltage Region

110 to 130 V

Note: This table is unofficial and for reference only. Be

sure to confirm the precise values.

U.S.A. or

Canada

Clearance

Distance (d), (d’)

≥ 3.2 mm

(0.126 inches)

2. Leakage Current Test

Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) is lower than or equal to the specified value in the table below.

Measuring Method: (Power ON)

Insert load Z between B (earth ground, power cord plug prongs) and exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig. 2 and following table.

d' d

Fig. 1

Exposed Accessible Part

Z

AC Voltmeter (High Impedance)

Earth Ground

B

Power Cord Plug Prongs

Fig. 2

Table 2: Leakage current ratings for selected areas

AC Line Voltage Region Load Z Leakage Current (i) Earth Ground (B) to:

110 to 130 V

Note: This table is unofficial and for reference only. Be sure to confirm the precise values.

U.S.A. or

Canada

0.15 µF CAP. & 1.5 kΩ

RES. Connected in parallel

2-4 LTVN_ISP

i ≤ 0.5 mA rms

Exposed accessible

parts

STANDARD NOTES FOR SERVICING

Circuit Board Indications

1. The output pin of the 3 pin Regulator ICs is indicated as shown.

To p Vi ew

Out

2. For other ICs, pin 1 and every fifth pin are indicated as shown.

Pin 1

3. The 1st pin of every male connector is indicated as shown.

Pin 1

Input

In

Bottom View

5

10

Pb (Lead) Free Solder

Pb free mark will be found on PCBs which use Pb free solder. (Refer to figure.) For PCBs with Pb free mark, be sure to use Pb free solder. For PCBs without Pb free mark, use standard solder.

Pb free mark

How to Remove / Install Flat Pack-IC

1. Removal

With Hot-Air Flat Pack-IC Desoldering Machine:

1. Prepare the hot-air flat pack-IC desoldering machine, then apply hot air to the Flat Pack-IC (about 5 to 6 seconds). (Fig. S-1-1)

Fig. S-1-1

2. Remove the flat pack-IC with tweezers while applying the hot air.

3. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)

4. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

CAUTION:

1. The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC.

2. Do not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other parts from damage. (Fig. S-1-2)

3-1 TVN_SN

3. The flat pack-IC on the CBA is affixed with glue, so be careful not to break or damage the foil of each pin or the solder lands under the IC when removing it.

With Soldering Iron:

1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)

CBA

Masking Ta pe

Tweezers

Hot-air Flat Pack-IC Desoldering Machine

Flat Pack-IC

Fig. S-1-2

Flat Pack-IC

Desoldering Braid

Soldering Iron

Fig. S-1-3

2. Lift each lead of the flat pack-IC upward one by one, using a sharp pin or wire to which solder will not adhere (iron wire). When heating the pins, use a fine tip soldering iron or a hot air desoldering machine. (Fig. S-1-4)

Sharp Pin

Fine Tip Soldering Iron

3. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)

4. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

Fig. S-1-4

3-2 TVN_SN

With Iron Wire:

1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)

2. Affix the wire to a workbench or solid mounting point, as shown in Fig. S-1-5.

3. While heating the pins using a fine tip soldering iron or hot air blower, pull up the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5.

4. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)

5. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

Note: When using a soldering iron, care must be

taken to ensure that the flat pack-IC is not being held by glue. When the flat pack-IC is removed from the CBA, handle it gently because it may be damaged if force is applied.

Hot Air Blower

2. Installation

1. Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you can install a replacement flat pack-IC more easily.

2. The “ I ” mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) Be sure this mark matches the pin 1 on the PCB when positioning for installation. Then presolder the four corners of the flat pack-IC. (See Fig. S-1-8.)

3. Solder all pins of the flat pack-IC. Be sure that none of the pins have solder bridges.

Example :

Pin 1 of the Flat Pack-IC is indicated by a " " mark.

Fig. S-1-7

To Solid Mounting Point

CBA

Tweezers

Iron Wire

Soldering Iron

Fig. S-1-5

Fine Tip Soldering Iron

Flat Pack-IC

or

Presolder

Flat Pack-IC

CBA

Fig. S-1-8

Fig. S-1-6

3-3 TVN_SN

Instructions for Handling Semiconductors

Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work.

1. Ground for Human Body

Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged on the body.

2. Ground for Workbench

Be sure to place a conductive sheet or copper plate with proper grounding (1 MΩ) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing.

1MΩ

CBA

Grounding Band

1MΩ

CBA

Conductive Sheet or Copper Plate

3-4 TVN_SN

CABINET DISASSEMBLY INSTRUCTIONS

1. Disassembly Flowchart

This flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they were.

[1] Stand

Assembly

[9] Speaker-S

[10] Speaker

[2] Rear Cabinet

[5] Power Supply CBA Unit

[7] PCB Holder (D), (U)

[8] Wall Mount Bracket

[11] Stand Bracket

[14] Front Flare

[15] LCD Module Assembly

[16] Front Cabinet Assembly

[12] IR Sensor CBA Unit

[13] Function CBA Unit

[3] Shield Box

[4] Digital Main CBA Unit

[6] Jack PCB Holder

2. Disassembly Method

Removal

Step/

Loc.

Part

No.

Stand

[1]

Assembly Rear

[2]

Cabinet

[3] Shield Box

Digital Main

[4]

CBA UnitD2D5 Power

[5]

Supply CBA Unit

Remove/*Unhook/

Fig.

No.

Unlock/Release/

Unplug/Unclamp/

Note

Desolder

D1 4(S-1) ---

D1 16(S-2), 3(S-3) ---

2(S-4), 12(S-5), 2(H-1), *CN3002, *CN3004,

D2

*CN3801, *CN3802,

D5

*CN4901, *CN4902, Jack Holder(A), Jack Holder(B)

6(S-6) ---

D2D511(S-7), *CN1, *CN4,

*CN5

---

Removal

Step/

Loc.

No.

Part

Fig.

Remove/*Unhook/

Unlock/Release/

No.

Unplug/Unclamp/

Note

Desolder

Jack PCB

[6]

Holder PCB Holder

[7]

(D), (U) Wall Mount

[8]

Bracket

D3 6(S-8) ---

D3 6(S-9) ---

D3 8(S-10), 2(S-11) ---

[9] Speaker-S D4 2(S-12), Desolder ---

[10] Speaker D4 4(S-13) ---

Stand

[11]

Bracket

IR Sensor

[12]

CBA UnitD4D5

Function

[13]

CBA UnitD4D5

2(S-14), 6(S-15),

D4

2(S-16), AC Inlet Holder

*CN4051, Sheet(Sensor)

Function Knob, Knob Frame, Sheet(Key)

---

15(S-17), 4(S-18),

[14] Front Flare D4

Boss, Boss(T),

---

Boss(W)

LCD

[15]

Module

D4 3(S-19) ---

Assembly Front

[16]

Cabinet

D4 --------------- ---

Assembly

↓

(1)

↓

(2)

↓

(3)

↓

(4)

↓

(5)

Note:

(1) Order of steps in procedure. When reassembling,

follow the steps in reverse order. These numbers are also used as the Identification (location) No. of parts in figures.

(2) Parts to be removed or installed. (3) Fig. No. showing procedure of part location (4) Identification of parts to be removed, unhooked,

unlocked, released, unplugged, unclamped, or desoldered. P = Spring, L = Locking Tab, S = Screw, H = Hex Screw, CN = Connector * = Unhook, Unlock, Release, Unplug, or Desolder e.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2)

(5) Refer to the following "Reference Notes in the

Table."

4-1 PL10.8DC

(S-2)

[2] Rear Cabinet

[1] Stand Assembly

(S-2)

[4] Digital Main CBA Unit

(S-3)

(S-2)

(S-1)

Fig. D1

[5] Power Supply CBA Unit

(S-6)

[3] Shield Box

Jack Holder(B)

(S-7)

(S-5)

(S-4)

Jack Holder(A)

(S-4)

(S-5)

(H-1)

(S-5)

Fig. D2

4-2 PL10.8DC

[8] Wall Mount Bracket

(S-10)

(S-11)

[7] PCB Holder (D)

[6] Jack PCB Holder

(S-8)

[7] PCB Holder (U)

(S-10)

(S-11)

(S-9)

Fig. D3

4-3 PL10.8DC

[16] Front Cabinet Assembly

[15] LCD Module Assembly

[13] Function CBA Unit

Sheet(Key)

Knob Frame

Function Knob

Boss

(S-19)

(S-17)

(S-18)

[11] Stand Bracket

Boss

(S-18)

Boss(T)

Boss(W)

Boss

Sheet(Sensor)

Desolder

(S-18)

Boss

[14] Front Flare

(S-17)

(S-18)

(S-15)

(S-16)

(S-17)

Boss(W)

Boss

[12] IR Sensor CBA Unit

[9] Speaker-S

(S-15)

(S-16)

AC Inlet Holder

Boss

Desolder

(S-12)

(S-14)

(S-13)

[10] Speaker

[9] Speaker-S

(S-12)

(S-13)

[10] Speaker

Fig. D4

4-4 PL10.8DC

TV Cable Wiring Diagram

To LCD Module Assembly

CN5

CN4

Power Supply CBA Unit

CN1

Function CBA Unit

AC Cord

CN2

To LCD Module Assembly

CN4902

CN3002

CN4901

Digital Main CBA Unit

CN3004

CN3801

CN3802

CN4001

IR Sensor CBA Unit

CN4051

To Speaker

CN4052

Fig. D5

4-5 PL10.8DC

ELECTRICAL ADJUSTMENT INSTRUCTIONS

General Note: “CBA” is abbreviation for “Circuit Board Assembly.”

Note: Electrical adjustments are required after

replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been completed. Also, do not attempt these adjustments unless the proper equipment is available.

Test Equipment Required

1. NTSC Pattern Generator (Color Bar W/White Window, Red Color, Dot Pattern, Gray Scale, Monoscope, Multi-Burst)

2. Remote control unit

3. Color Analyzer

How to set up the service mode:

Service mode:

1. Turn the power on.

2. Press [0], [6], [2], [5], [9], [6] and [INFO] buttons on the remote control unit in this order. The following screen appears.

1. Purity Check Mode

This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.

1. Enter the Service mode.

2. Each time pressing [7] button on the remote control unit, the display changes as follows.

Purity Check Mode

White mode

[7] button

Black mode

[7] button

Red mode

"*" differs depending on the models.

[current] File code : Total checksum : Panel-Option code :

[FRC] SoftwareID : Checksum : BootID :

Tuner : Safety : EDID :

***-***-***-* Push"0"key **-***-***

Press "POWER" key to exit.

********-***** **** ***

***** Safety_Non Push"0"key

Lightsensor : **

[7] button

Green mode

[7] button

Blue mode

[7] button

White 20% mode

Note:

When entering this mode, the default setting is White mode.

3. To cancel or to exit from the Purity Check Mode, press [PREV. CH] button.

5-1 PL10.8EA

The White Balance Adjustment should be performed when replacing the LCD Panel or Digital Main CBA Unit.

2. White Balance Adjustment

Purpose: To mix red, green and blue beams correctly

for pure white. Symptom of Misadjustment: White becomes bluish

or reddish.

Test Point

Screen

Pattern Generator,

Color analyzer

INPUT: WHITE 70%

1. Operate the unit for more than 60 minutes.

2. Input the White Raster (70%=70IRE).

3. Set the color analyzer to the CHROMA mode and bring the optical receptor to the center on the LCD-Panel surface after zero point calibration as shown above. Note: The optical receptor must be set perpendicularly to the LCD Panel surface.

4. Enter the Service mode. Press [VOL] - button on the remote control unit and select “C/D” mode.

Adj. Point Mode Input

[CH] + or -

button

M. EQ. Spec.

To avoid interference from ambinent light, this adjustment should be performed in a dark room.

Perpendicularity

L = 3 cm

C/D

x= 0.272 ± 0.003 y= 0.278 ± 0.003

Figure

Color Analyzer

White Raster

(APL 70%)

5. [CUTOFF] Press [1] button to select “COR” for Red Cutoff adjustment. Press [2] button to select “COG” for Green Cutoff adjustment. Press [3] button to select “COB” for Blue Cutoff adjustment.

[DRIVE]

Press [4] button to select “DR” for Red Drive adjustment. Press [5] button to select “DG” for Green Drive adjustment. Press [6] button to select “DB” for Blue Drive adjustment.

6. Adjust the data of “1(COR)”, “2(COG)” and “3(COB)” to 0 by using [CH] - or + button.

7. Adjust the data of “4(DR)”, “5(DG)” and “6(DB)” to 63 by using [CH] - or + button.

8. Adjust Drive so that the color temperature becomes 12000°K (x

9. Adjust the highest data from the “4(DR)”, “5(DG)” and “6(DB)” to 127 by using [CH] - or + button. To adjust the rest of the two drive data, calculate the data by the following method.

{ (128 + A) x 255 / (128 + B) } - 128

A: One of two data, except for the highest drive

data, you would like to calculate.

B: The highest drive data.

For example: (When the current data says DR=70, DG=63 and DB=59.)

1: Adjust the highest data to 127.

In this case, adjust the DR to 127.

2: Calculate the DG data.

{(128+63)x255/(128+70)}-128=117.9 The result for the DG data is 118.

3: Calculate the DB data.

{(128+59)x255/(128+70)}-128=112.8 The result for the DG data is 113.

10. To cancel or to exit from the White Balance Adjustment, press [PREV. CH] button.

=

0.272 / y= 0.278 ±0.003).

5-2 PL10.8EA

HOW TO INITIALIZE THE LCD TV

The purpose of initialization is to place the set in a new out of box condition. The customer will be prompted to select a language and program channels after the set has been initialized. To put the program back at the factory-default, initialize the LCD TV using the following procedure.

1. Turn the power on.

2. Enter the service mode.

- To cancel the service mode, press [ ] button on the remote control unit.

3. Press [INFO] button on the remote control unit to initialize the LCD television.

4. "INITIALIZED" will appear in the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is completed.

5. Unplug the AC Cord.

6-1 PL10.12INT

FIRMWARE RENEWAL MODE

Equipment Required

a. USB storage device b. Remote Control Unit

Firmware Update Procedure

1. Turn the power off and unplug the AC Cord.

2. Insert the USB storage device to the USB port as shown below.

USB port

USB storage device

Rear Cabinet

(Files included in the USB storage device are displayed.)

"*" differs depending on the models.

Select an upgrade file

Cancel

*****_******.upg

123

Note:

To cancel the update mode, select “Cancel” and press the [OK] button.

10. Select the file and press [OK] button.

11. The update will start and the following will appear on the screen.

"*" differs depending on the models.

Current Version: New Version:

***-***-***-***-* ********-****** *******-***-*-***-****

3. Plug the AC Cord and turn the power on.

4. After few seconds, the menu mode will appear on the screen.

Note:

After 30 seconds without an operation, the menu mode will disappear automatically. To display the menu mode again, press the [MENU] button on the remote control unit.

5. Select “Setup” and press the [OK] button to display the setup menu.

6. Select “Software update”.

7. Select “Updates”.

8. Select “USB”.

9. Press the [OK] button on the remote control unit to enter the update mode. Update file selection screen appears as follows.

Are you sure you want to update?

No Yes

Note:

If the above screen isn’t displayed, repeat from step 1.

12. Select “Yes” and press the [OK] button to update.

Note:

Do not remove the USB storage device or turn the TV off while update is in progress.

13. When the firmware update is completed, the following will appear on the screen.

Update your TV with new software: Done

Software update is successful.

Please remove the USB storage device

and restart the TV set.

Remove the USB storage device from the USB port. Turn the power off and turn the power on again.

7-1 PL10.8FW

FLOW CHART NO.1

The power cannot be turned on.

TROUBLESHOOTING

Is 5V voltage supplied to Pin(6) of CN3002 on the Digital Main CBA Unit?

Ye s

When pressing power switch on the unit, LED is lighting or flashing?

Ye s

When pressing power switch on the remote control unit, LED is lighting or flashing?

Ye s

Is 3V voltage supplied to Pin(3) of CN3002 on the Digital Main CBA Unit?

Ye s

Replace Power Supply CBA Unit.

FLOW CHART NO.2

The key operation is not functioning.

Is 3.3V voltage supplied to Pin(3) of CN3004 on the Digital Main CBA Unit?

Ye s

Is 3.3V voltage supplied to Pin(1) of CN4001 on the Function CBA Unit?

Ye s

Is the Pin(3) voltage of CN4001 0V when pressing power switch?

Ye s

No

Replace Power Supply CBA Unit.

See FLOW CHART NO.2 <The key operation is not functioning.>

See FLOW CHART NO.3 <No operation is possible from remote control unit. (Operation is possible from the unit.)>

Replace Digital Main CBA Unit.

Check the line between Pin(1) of CN4001 and Pin(3) of CN3004, and service it if defective.

Replace Function CBA Unit.

Check the line between Pin(3) of CN4001 and Pin(6) of CN3004, and service it if defective.

FLOW CHART NO.3

No operation is possible from remote control unit. (Operation is possible from the unit.)

Is 3.3V voltage supplied to Pin(3) of CN40 IR Sensor CBA Unit?

Ye s

Is the "L" pulse sent out Pin(2) of CN4052 on the IR Sensor CBA Unit?

Ye s

Is the "L" pulse sent out Pin(2) of CN3004 on the Digital Main CBA Unit?

Ye s

Replace Digital Main CBA Unit.

52 on the

No

Check AL+3.3V line and service it if defective.

Replace IR Sensor CBA Unit.

Check CL3004 and service it if defective.

8-1 PL10.4TR

FLOW CHART NO.4

Picture does not appear normally.

Is 3V voltage supplied to Pin(1, 3) of CN3002 on the Digital Main CBA Unit?

Ye s

Is 12V voltage supplied to Pin(10, 12, 13, 14) of CN3002 on the Digital Main CBA Unit?

Ye s

Is 24V voltage supplied to Pin(1, 2, 3, 4,5) of CN4?

Ye s

CL4901, C Module ma Check and repla

FLOW CHART NO.5

Audio is not outputted normally.

Is 12V voltage supplied to Pin(10, 12, 13, 14 CN3002?

Are the audio signals outputted to Pin(1, 2) of CN and Pin(1,

L4902, Digital Main CBA Unit or LCD

y be defective.

ce these parts.

) of

Ye s

3) of CN3802?

Ye s

3801

No

Replace Power Supply CBA Unit.

Replace Digital Main CBA Unit.

SP3801, SP3802, SP3803, SP3804, CL3801, C CL3803 or CL3804 may be defectiv Check and replace these parts.

e.

L3802,

8-2 PL10.4TR

BLOCK DIAGRAMS

System Control Block Diagram

REMOTE

RS4051

LIGHT

IC4051

P-ON+5V

D4051

POWER

SENSOR

CN4052

LED155

REMOTE22

LIGHT77

KEY-IN166

CN3004

Q3001

CN4051

CN4001

IR SENSOR CBA UNIT

KEY-IN133

KEY SWITCH

FUNCTION CBA

UNIT

SCL

SDA

TU3001 (TUNER UNIT)

9

8

BACKLIGHT-SW1

CN3002

TO POWER SUPPLY

BLOCK DIAGRAM

(CN2)

BACKLIGHT-ADJ5

AL+5V6

P-ON+12V10

P-ON+12V12

P-ON+12V13

P-ON-H13

P-ON+12V14

Q4902

LCD+12V

SW+12V

P-ON+3.3V

P-ON+12V

+3.3V REG.

IC4604

VCC+1.8V

+1.8V REG.

IC3603

+2.7V REG.

IC4601

VCC+1.8V(1)

+1.8V REG.

IC4603

IC4602

VCC+1.25V(1)

VCC+1.25V

+1.25V REG.

IC3604

IC3602

P-ON+5V

A+3.3V

+3.3V REG.

IC3607

+5V REG.

AL+1.25V

+1.25V REG.

IC3601

IC3606

AL+3.3V

+3.3V REG.

IC3101

(MAIN MICRO CONTROLLER)

(USB I/F)

IC3301

Q3002

1

USB(-)

CN3706

BUFFER

AM16

LIGHT

2

USB(+)

USB

AN23

REMOTE

USB-DP0

AP13

59

55PFL5705D/F7, 55PFL5705DV/F7

CN3705

AL16

KEY-IN1

USB-DM0

AN13

58

USB

55

TX(+)

I/F

TX(-)

56

LAN

52

RX(+)

AL18

LED1

53

RX(-)

AP2

12

RESET HUB-RESET

XO

XI

61

60

X3301

25MHz

OSC

C31

TU-SCL

VGA-SCL

J5

VGA-SCL

VGA-SDA

B30

TU-SDA

COMP2-DET

VGA-SDA

AMP-MUTE

M5

G30

AP22

COMP2-DET

AMP-MUTE

TO VIDEO/AUDIO

BLOCK DIAGRAM

SWITCHING

SCL0

AN10

SDA0

AL8L1K1

LCD-ON AN8

H30BACKLIGHT-ADJ

AP21

P-ON-H1

SWITCHING

Q4901

AM21

LCD-P-ON

STM-SCL

STM-SDA

AP24

AM23

Q4601, Q4602

Q4611, Q4612

SWITCHING

AXI

B21

AXO

A21

OSCXO

OSCXI

AP17

AN17

DIGITAL MAIN CBA UNIT

SCL2

SDA2

12MHz

X3102

OSC

X3101

27.576MHz

6

5

SCL1

SDA1

XTAL-IN

AE13

27MHz

X4201

XTAL-OUT

AF13

OSC

SCL

SDA

IC3102 (MEMORY)

IC4201

(FRAME RATE CONTROL)

K2 L2

6

5

SCL

SDA

IC4203 (MEMORY)

OSC

9-1

PL10.8BLS

Video/Audio Block Diagram

AUDIO SIGNAL

VIDEO SIGNAL

COM-VIDEO-Y-IN1

COM-VIDEO-Pb-IN1

COM-VIDEO-Y-IN2

COM-VIDEO-Pr-IN1

COM-VIDEO-Pb-IN2

VGA-R-IN

VGA-G-IN

COM-VIDEO-Pr-IN2

VGA-B-IN

VGA-HSYNC

VGA-VSYNC

TO DIGITAL

IF-AGC

DIF-OUT1

DIF-OUT2

SIGNAL PROCESS

BLOCK DIAGRAM

SIF

TU-CVBS

HDMI/PC-AUDIO(L)-IN

HDMI/PC-AUDIO(R)-IN

COMP-AUDIO(L)-IN1

COMP-AUDIO(R)-IN1

COMP-AUDIO(L)-IN2

COMP-AUDIO(R)-IN2

SPDIF

AMP(L)-

AMP(L)+

AMP(R)-

AMP(R)+

TO SYSTEM

VGA-SCL

VGA-SDA

CONTROL

BLOCK DIAGRAM

AMP-MUTE

COMP2-DET

WF1

COMPONENT

-Y-IN1

JK3001

JK3002

WF2

WF3

COMPONENT

-Pb-IN1

COMPONENT

-Pr-IN1

JK3003

WF1

COMPONENT

-Y-IN2

JK3006

JK3007

WF3

WF2

COMPONENT

-Pb-IN2

COMPONENT

-Pr-IN2

JK3008

123

131415

JK3701

PC-RGB

IN

12

TU3001

(TUNER UNIT)

12

13

14

IF-AGC

DIF-OUT1

DIF-OUT2

Q3003

BUFFER

19

VIDEO

16

SIF

HDMI/PC-

JK3011

JK3004

AUDIO-IN

WF4

COMPONENT-

AUDIO(L)-IN1

JK3005

COMPONENT-

AUDIO(R)-IN1

JK3009

WF4

COMPONENT-

AUDIO(L)-IN2

JK3010

BUFFER

JK3012

COMPONENT-

AUDIO(R)-IN2

Q3807

DIGITAL

AUDIO-OUT

(COAXIAL)

9

PWM

IC3801 (AUDIO AMP)

23,24

SP3803

854

GENE.

/GAIN CTL

DRIVE2

13,14

2

CN3801

SP(L)+

SP3801

PWM

47,48

1

SP(L)-

GENE.

DRIVE1

/GAIN CTL

MUTE CONTROL

37,38

CN3802

3

1

3

SP(R)-

SP(R)+

SP3802

DIGITAL MAIN CBA UNIT

SP3804

SPEAKER

L-CH

R-CH

9-2 PL10.8BLV

Digital Signal Process Block Diagram

LCD MODULE

ASSEMBLY

LVDS-TX2-1(-)40

LVDS-TX2-1(+)39

LVDS-TX2-0(-)42

LVDS-TX2-0(+)41

LVDS-TX2-2(-)38

LVDS-TX2-2(+)37

LVDS-TX2-3(-)32

LVDS-TX2-3(+)31

LVDS-TX2-4(-)30

LVDS-TX2-4(+)29

LVDS-TX4-0(-)27

LVDS-TX4-0(+)26

LVDS-TX4-1(-)25

LVDS-TX4-1(+)24

LVDS-TX4-2(-)23

LVDS-TX4-2(+)22

LVDS-TX4-3(-)17

LVDS-TX4-3(+)16

LVDS-TX4-4(-)15

LVDS-TX4-4(+)14

LVDS-TX2CLK(-)35

LVDS-TX2CLK(+)34

LVDS-TX4CLK(-)20

LVDS-TX4CLK(+)19

LVDS-TX1-1(-)30

LVDS-TX1-0(-)32

LVDS-TX1-0(+)31

LVDS-TX1-1(+)29

LVDS-TX1-2(-)28

LVDS-TX1-2(+)27

LVDS-TX1-3(-)22

LVDS-TX1-3(+)21

LVDS-TX1-4(-)20

LVDS-TX1-4(+)19

LVDS-TX3-0(-)17

LVDS-TX3-0(+)16

LVDS-TX3-1(-)15

LVDS-TX3-1(+)14

LVDS-TX3-2(-)13

LVDS-TX3-2(+)12

LVDS-TX3-3(-)7

LVDS-TX3-3(+)6

LVDS-TX3-4(-)5

LVDS-TX3-4(+)4

LVDS-TX1CLK(-)25

LVDS-TX1CLK(+)24

LVDS-TX3CLK(-)10

LVDS-TX3CLK(+)9

AUDIO SIGNAL

VIDEO SIGNAL

IC4201 (FRAME RATE CONTROL)

IC3101 (DIGITAL SIGNAL PROCESS)

VGA-HSYNC

VGA-VSYNC

A2

B3

D12

CN4901

A14

AF17

B32

D9

D11

B14

AE17

A32

D4

C14

AD17

B33

D5

A/D

D14

AC17

A33

CN4902

A9

B9

C9

A12

A21

B12

AE15

E34

A15

C12

AD15

F33

B21

D12

LVD S

OUTPUT

DATA

INPUT

LATCH

LVD S

RX

AF20

AE20

AC15

F34

H33

H34

DEMODULATOR

/MPEG DECODER

IF-AGC

A31

D19

D18

C21

AD20

J33

D21

AC20

J34

B20

AF19

K33

A17

C20

AE19

K34

C23

A19

AF18

M33

C24

B19

AE18

M34

A23

B23

C19

AD18

N33

D19

AC18

N34

AUDIO I/F

E31

E12

AD16

D33

C26

B13

C13

AF16

AF15

AE16

E33

C33

C34

CONVERTER

SW

A6

D6

D7

D8

D26

E13

AC16

D34

E20

AD19

L33

D24

D25

E21

AC19

L34

DIGITAL

A25

A11

SIGNAL

PROCESS

A26

B11

C11

D11

B10

C10

DATA

PROCESSING

AUDI O

DECODER

D9

A18

GAMMA

CORRECTOR

B18

FRC

P1

C18

LINE BUFFER

P2

D18

B17

A16

B16

E10

E11

E18

D16

E19

VIDEO

DECODER

DATA(0-15)

IC4401

(DDR2 SDRAM)

IC3403

DATA(0-15)

(DDR2 SDRAM)

79461

JK3702

DATA0(-)

DATA0(+)

DATA(16-31)

IC4402

ADDESS(0-12)

(DDR2 SDRAM)

IC3401

ADDESS(0-12)

(DDR2 SDRAM)

HDMI-IN4

DATA1(-)

DATA1(+)

DATA2(+)

ADDESS(0-12)

DATA(16-31)

ADDESS(0-12)

3

101216

DATA2(-)

CLOCK(-)

CLOCK(+)

IC4202

(NAND FLASH MEMORY)

IC3104

(NAND FLASH MEMORY)

15

HDMI-DATA

HDMI-CLOCK

DATA(0-7)

C17

C16

HDMI

I/F

L1

N1

L2

N2

M1

M2

VGA-HSYNC

DIGITAL MAIN CBA UNIT

VGA-R-IN

VGA-VSYNC

VGA-G-IN

VGA-B-IN

COM-VIDEO-Y-IN1

TU-CVBS

COM-VIDEO-Y-IN2

COM-VIDEO-Pr-IN1

COM-VIDEO-Pb-IN1

COM-VIDEO-Pr-IN2

COM-VIDEO-Pb-IN2

DIF-OUT1

DIF-OUT2

IF-AGC

TO VIDEO/AUDIO

BLOCK DIAGRAM

SIF

AMP(L)+

AMP(L)-

AMP(R)+

AMP(R)-

SPDIF

HDMI/PC-AUDIO(L)-IN

HDMI/PC-AUDIO(R)-IN

COMP-AUDIO(L)-IN2

COMP-AUDIO(L)-IN1

COMP-AUDIO(R)-IN1

IC3201 (HDMI SW)

COMP-AUDIO(R)-IN2

DATA0(+)

JK3705

9-3

DATA0(-)

7 68

677069727166652930

DATA1(+)

DATA1(-)

DATA2(+)

DATA2(-)

HDMI-DATA

HDMI-CLOCK

CLOCK(+)

94613

CLOCK(-)

101216

HDMI-IN1

56575859606162

4365872

DATA0(+)

DATA0(-)

DATA1(+)

JK3704

79461

15

HDMI

DATA1(-)

63

SW

DATA2(+)

DATA2(-)

HDMI-IN2

CLOCK(+)

CLOCK(-)

3

101216

1

33

HDMI-DATA

HDMI-CLOCK

222124232625201943

34

141316151817121139

DATA0(+)

JK3703

79461

15

DATA0(-)

DATA1(+)

DATA1(-)

DATA2(+)

DATA2(-)

HDMI-DATA

HDMI-CLOCK

CLOCK(+)

CLOCK(-)

3

101216

HDMI-IN3

PL10.8BLD

44

40

15

Power Supply Block Diagram

CN2

TO SYSTEM

CONTROL

AL+5V9

P-ON+12V

1-4

BLOCK

DIAGRAM

BACKLIGHT-ADJ

BACKLIGHT-SW

10

14

(CN3002)

P-ON-H1

12

LCD MODULE

ASSEMBLY

NOTE:

The voltage for parts in hot circuit is measured using

hot GND as a common terminal.

3

4

T901

10

For continued protection against risk of fire,

replace only with same type 5 A, 250V fuse.

IC901

(SWITCHING CONTROL)

CAUTION ! :

ATTENTION : Utiliser un fusible de rechange de même type de 5A, 250V.

9

5

7

SWITCHING

6

2

CONTROL

5A/250V

POWER SUPPLY CBA UNIT

Q905

Q910

Q210

1

(ISOLATOR)

PC902

4

2

IN

IC902

(LINEAR REGULATOR)

4

5,6

L800A

1,2

7,8

OUT

4

SCR210

3 2

1

EN

9

6

3

1

Q601B

T601

5

4

14

12710

SWITCHING

Q601A

(FEED BACK)

PC901

4

L800B

7,8

14

3 2

Q903

Q902

5,6

1,2

2

1

7

5

Q904

CN4

13

11

SWITCHING

CT601

PANEL+24V1-5

8

2

4

1

BACKLIGHT-ADJ14BACKLIGHT-SW

12

14

PC601

(FEED BACK)

3

2

PANEL+24V1-5

CN5

3 2

HOT COLD

Q801B

BRIDGE

RECTIFIER

BD1

LINE

FILTER

FL2

IC801

LINE

FILTER

FL1

F1

5A/250V

1

AC

AC601

CN1

INLET

AC CORD

3

HOT CIRCUIT. BE CAREFUL.

CAUTION !

Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.

If Main Fuse (F1) is blown , check to see that all components in the power supply

circuit are not defective before you connect the AC plug to the AC power supply.

Otherwise it may cause some components in the power supply circuit to fail.

(SWITCHING CONTROL)

SWITCHING

14

SWITCHING

7

9-4

SWITCHING

Q801A

11

CONTROL

8

VCC

SCR601

6

5

RESONANT

CONTROL

9

14

15

11612

IC601

(HIGH-VOLTAGE

RESONANT CONTROL)

Q802

Q800

11

HIGH-

VOLTAGE

8

12

PL10.8BLP

SCHEMATIC DIAGRAMS AND TEST POINTS

Standard Notes

WARNING

Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the mark “#” in the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.

Notes:

1. Do not use the part number shown on these drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since these drawings were prepared.

2. All resistance values are indicated in ohms (K = 10

3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.

4. All capacitance values are indicated in µF (P = 10

5. All voltages are DC voltages unless otherwise specified.

6.

This schematic diagrams are masterized version that should cover the entire PL10.8 chassis models. Thus some parts in detail illustrated on this schematic diagrams may vary depend on the model within the PL10.8 chassis. Please refer to the parts lists for each models.

7. The Circuit Board layout illustrated on this service manual is the latest version for this chassis at the moment of making this service manual. Depend on the mass production date of each model, the actual layout of each Board may differ slightly from this version.

3

, M = 106).

-6

µF).

10-1 PL10.8SC

LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON

r

THE FOLLOWING PAGES:

1. CAUTION:

CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME

TYPE_A,_V FUSE.

ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE_A,_V.

2. CAUTION:

Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F1) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

3. Note:

1. Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since the drawings were prepared.

2. To maintain original function and reliability of repaired units, use only original replacement parts which are listed with their part numbers in the parts list section of the service manual.

4. Voltage indications on the schematics are as shown below:

Plug the TV power cord into a standard AC outlet.:

2

(Unit: Volt)

1

5.0 5.0

3

Power on mode

5. How to read converged lines

1-D3

Distinction Area

Line Number (1 to 3 digits)

Examples:

1. "1-D3" means that line number "1" goes to the line numbe "1" of the area "D3".

2. "1-B1" means that line number "1" goes to the line number "1" of the area "B1".

6. Test Point Information

: Indicates a test point with a jumper wire across a hole in the PCB.

: Used to indicate a test point with a component lead on foil side.

: Used to indicate a test point with no test pin.

: Used to indicate a test point with a test pin.

Voltage

Indicates that the voltage is not consistent here.

3

2

1

AREA D3

1-B1

AREA B1

1-D3

ABCD

10-2 PL10.8SC