Panasonic 42PFL5704D, 47PFL5704D, 52PFL5704D Service Manual

LCD TV

chassis PL9.1

Service Manual

Contents

42” 42PFL5704D/F7 47” 47PFL5704D/F7 52” 52PFL5704D/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.

A9PH1UF/A9PJ1UF/A9PK1UF

090323

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 col 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

Service Modes, Error Codes, and Fault Finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

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

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

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

Schematic Diagrams and CBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

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

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

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

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

SPECIFICATIONS

< TUNER >

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

Description Band Off air channel (MHz) Cable channel (MHz)

Low Band

1. Channel Coverage

Description System Picture (MHz) Chroma (MHz) Sound (MHz)

2. Intermediate Frequencies NTSC-M 45.75 42.17 41.25

Mid Band

High Band

48.25 to 82.25

175.25 to 224.25

471.25 to 855.25

69.25 to 154.25

161.25 to 439.25

447.25 to 463.25

< LCD PANEL >

Description Condition Unit Nominal Limit

1. Pixel Format

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

[42PFL5704D/F7, 47PFL5704D/F7]

3. Viewing Angle (CR>20)

[52PFL5704D/F7]

3. Viewing Angle (CR>10)

Horizontal

Ver t i cal

Horizontal

Ver t i cal

Horizontal

Ver t i cal

pixels pixels

° °

1920 1080

500 ---

178 178

88 88

---

< VIDEO >

Description Condition Unit Nominal Limit

1. Transient Response --- ns <250 ---

2. Y/C Separation --- dB >20 ---

3. Chroma (3.55 MHz) Suppression --- dB >25 ---

11500

0.276

0.277 9000

0.289

0.291 6500

0.314

0.319

±0.004 ±0.004

4. Color Temperature

Cool

x y

Normal

x y

warm

x y

°K

< AUDIO >

Description Condition Unit Nominal Limit

1. Distortion at rated Power (ATSC 0 dBfs)

2. Audio Response Curve -3dB kHz >12.5 ---

--- % <10 ---

---

1-1 A9PH1SP

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

AC Voltmeter (High Impedance)

Earth Ground

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.

Top View

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

Bottom View

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 Tape

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

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 “●” mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) Be sure this mark matches the 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

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

Notes: 1. Please put your machine on soft material to avoid to scrape panel when you disassemble it.

2. The installation specifications of the part are subject to change without notice.

3. By the difference of the LCD panel, the method of installing each part might be different.

1. Assembly/Panel Removal

Front view

3. Remove the Loudspeaker assy Left and Right.

Back view

Remove the 8 screws.

1. Remove the stand. Remove the 4 screws.

2. Remove the Back cover assembly. Remove the 22 screws.

4. Remove the SSB. Remove the 6 connectors. (1312, 1C12, 1G50, 1G51, 1M95, 1M99) Remove the 8 screws.

5. Remove the Power supply Module. Remove the 3 connectors. (CN1, CN2, CN3) Remove the 8 screws.

6. Remove the ASSY Tact SW CBA. Remove the 2 screws and connector J1.

4-1 A9PH1DC

7. Remove the Module IR. Insert a minus screwdriver in the hole of A, and release a locking tab.

2. Set Re-assembly

To re-assemble the whole set, execute all processes in reverse order.

Note: While re-assembling, make sure that all cables

are placed and connected in their original position.

• The content is different according to the product.

8. Remove the Left Loudspeaker. Remove the 4 screws.

9. Remove the Right Loudspeaker. Remove the 4 screws.

10. Remove the TFT-LCD. Remove the 10 screws.

4-2 A9PH1DC

SERVICE MODES, ERROR CODES, and FAULT FINDING

1Test Points

In the chassis schematics and layout overviews, the test points are mentioned. In the schematics, test points are indicated with “Fxxx” or “Ixxx”, in the layout overviews with a “half-moon” sign. As most signals are digital, it will be difficult to measure waveforms with a standard oscilloscope.

Perform measurements under the following conditions:

• Service Default Mode.

• Video: Color bar signal.

• Audio: 3 kHz left, 1 kHz right.

2 Se rvice Modes

The Service Mode feature is split into four parts:

• Service Default Mode (SDM).

• Service Alignment Mode (SAM).

• Customer Service Mode (CSM).

• Computer Aided Repair Mode (ComPair).

SDM and SAM offer features, whic engineer to repair/align a TV set. Some features are:

• A pre-defined situation to ensure measurements can be made under uniform conditions (SDM).

• Activates the blinking LED procedure for error identification when no picture is available (SDM).

• The possibility to overrule software protections when SDM is entered via the Service pins.

• Make alignments (e.g. White Tone), (de)select options, enter options codes, reset the error buffer (SAM).

• Display information (“SDM” right corner of screen, error buffer, software version, operating hours, options

The CSM is a Service Mode that can be enabled by the consumer. The CSM displays diagnosis information, which the customer can forward to the dealer or call centre. In CSM mode, “CSM”, is displayed in the top right corner of the screen. The information provided in CSM and the purpose of CSM is to:

• Increase the home repair hit rate.

• Decrease the number of nuisance calls.

• Solved customers' problem without home visit.

2.1 General

h can be used by the Service

or “SAM” indication in upper

and option codes, sub menus).

Life Timer

During the life time cycle of the TV set, a timer is kept (called “Op. Hour”). It counts the normal operation hours (not the Stand-by hours). The actual value of the timer is displayed in SDM and SAM in a decimal value. Every two soft-resets increase the hour by +1. Standby hours are not counted.

Software Identification, Version and Cluster

The software ID, version, and cluster will be shown in the main menu display of SDM, SAM, and CSM. The screen will show: “AAAABCD X.YY”, where:

• AAAA

• B

is the chassis name: LC92. (Development chassis)

is the region indication: E= Europe, A= AP/China, U=

NAFTA, L= LATAM.

• C is the display indication: L= LCD, P= Plasma.

• D is the language/feature indication: P= Philips, M= Magnavox.

• X is the main version number: this is updated with a major change of specification (incompatible with the previous software version). Numbering will go from 1 - 9 and A - Z. – If the main version number changes, the new version

number is written in the NVM.

– If the main version number changes, the default

settings are loaded.

•

is the sub version number: this is updated with a minor

change (backwards compatible with the previous versions) Numbering will go from 00 - 99. – If the sub version number changes, the new version

number is written in the NVM.

– If the NVM is fresh, the software identification, version,

and cluster will be written to NVM.

Display Option Code Selection

When after an SSB or display exchange, the display option code is not set properly, it will result in a TV with “no display”. Therefore, it is required to set this display option code after such a repair.

To do so, press the following key sequence on a standard RC transmitter: “062598"directly followed by MENU and "xxx" where “xxx” is a 3 digit decimal value of the panel type: see column “Panel Code” in table “Option Codes OP1...OP7” (ch.

8), or see sticker on the side/bottom of the cabinet. When the

value is accepted and stored in NVM, the set will switch to Stand-by, to indicate that the process has been completed.

Some items are applicable to all Service Modes or are general. These are listed below.

Display Option

Code

39mm

040

PHILIPS

MODEL:

2PF9968/10

27mm

SERIAL NO:

PROD.

AG 1A0620 000001

(CTN Sticker)

Figure 1 Location of Display Option Code sticker

During this algorithm, the NVM-content must be filtered, because several items in the NVM are TV-related and not SSBrelated (e.g. Model and Prod. S/N). Therefore, “Model” and “Prod. S/N” data is changed into “See Type Plate”. In case a call centre or cons

umer reads “See Type Plate” in CSM mode, he needs to look to the side/bottom sticker to identify the set, for further actions.

5-1 PL9.1SM

Service Default Mode (SDM)

2.2

Purpose

Set the TV in SDM mode in order to be able to:

• Create a pre-defined setting for measurements to be made.

• Override software protections.

• Start the blinking LED procedure.

• Read the error buffer.

• Check the life timer.

Specifications

Table 1 SDM default settings

Region Freq. (MHz)

Europe (except France), AP-PAL/-Multi

NAFTA, AP-NTSC 61.25 (channel 3) NTSC M

ATAL

475.25 PAL B/G

Default syst.

L MACESecnarF

M LAPM

On Screen Menu

After activating SDM, the following screen is visible, with SDM in the upper right corner of the screen to indicate that the television is in Service Default Mode.

Figure 3 SDM menu

• Set linear video and audio settings to 50%, but volume to 25%. Stored user settings are not affected.

• All service-unfriendly modes (if present) are disabled, since they interfere with diagnosing/repairing a set. These service unfriendly modes are: – (Sleep) timer. – Blue mute/Wall paper. – Auto switch “off” (when there is no “ident” signal). – Hotel or hospital mode. – Child lock or parental lock (manual or via V-chi p). – Skipping, blanking of “Not favorite”, “Skipped” or

“Locked” presets/channels.

– Automatic storing of Personal Preset or Last Status

settings.

– Automatic user menu time-out (menu switches back/

OFF automatically.

– Auto Volume levelling (AVL).

How to Activate

To activate SDM, use

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the MENU button (do not allow the display to time out between entries while keying the sequence).

• Short one of the “Service” jumpers on the TV board during cold start (see Figures “Service jumper”). Then press the mains button (remove the short after start-up). Caution: Activating SDM by shorting “Service” jumpers will override the DC speaker prot I2C error (error 4), and the Tr (error 5). When doing this, the service-technician must know exactly what he is doing, as it could damage the television set.

one

of the following methods:

ection (error 1), the General ident video processor error

Menu explanation:

• HHHHH: Are the operating hours (in decimal).

AAAABCD-X.YY

• “General” -> “Software Identification, Version, and Cluster” for the SW name definition.

• EER: Shows all errors detected since the last time the buffer was erased. Five errors possible.

• OP: Used to read-out the option bytes. See “Options” in the Alignments section for a detailed description. Ten codes (in two rows) are possible.

How to Navigate As this mode is read only, there is not much to navigate. To switch to other modes, use one of the following methods:

• Command MENU from the user remote will enter the normal user menu (brightness, contrast, color, etc...) with “SDM” OSD remaining, and pressing MENU key again will return to the last status of SDM again.

• To prevent the OSD from interfering with measurements in SDM, command “OSD” or “i+” (“STATUS” or “INFO” f or NAFTA and LATAM) from the user remote will toggle the OSD “on/off” with “SDM” OSD remaining always “on”.

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the OSD/ STATUS/INFO/I+ button to switch to SAM (do not allow the display to time out between entries while keying the sequence).

How to Exit

Switch the set to STANDBY by pressing the mains button on the remote control transmitter or on the television set. If you switch the television set “off” by removing the mains (i.e., unplugging the television), the television set will remain in SDM when mains is re-applied, and the error buffer is not cleared. The error buffer will only be cleared when the “clear” command is used in the SAM menu.

: See paragraph “Service Modes” ->

Figure 2 Service jumper (SSB component side)

Note:

• If the TV is switched “off” by a power interrupt while in SDM, the TV will show up in the last status of SDM menu as soon as the power is supplied again. The error buffer will not be cleared.

• In case the set is in Factory mode by accident (with “F” displayed on screen), by pressing and hold “VOL-“ and “CH-” together should leave Factory mode.

5-2 PL9.1SM

Service Alignment Mode (SAM)

2.3

Purpose

• To change option settings.

• To display / clear the error code buffer.

• To perform alignments.

Specifications

• Operation hours counter (maximum five digits displayed).

• Software version, error codes, and option settings display.

• Error buffer clearing.

• Option settings.

• Software alignments (White Tone).

• NVM Editor.

• Set the screen mode to full screen (all content on screen is visible).

How to Activate

To activate SAM, use one of the following methods:

• Press the following key sequence on the remote control transmitter: “ STATUS/INFO/I+ button (it depends on region which button is present on the RC). Do not allow the display to time out between entries while keying the sequence.

After entering SAM, the following screen is visible, with SAM in the upper right corner of the screen to indicate that the television is in Service Alignment Mode.

” directly followed by the OSD/

062596

RGB Align. Used to align the White Tone. See “White Tone” in the “Alignments” chapter for a detailed description.

5. NVM Editor. Can be used to change the NVM data in the television set. See also paragraph “Fault Finding and Repair Tips” further on.

NVM Copy. Gives the possibility to copy/load the NVM file

to/from an USB stick.

How to Navigate

• In the SAM menu, select menu items with the UP/DOWN keys on the remote control transmitter. The selected item will be indicated. When not all use the UP/DOWN keys to display the next / previous menu items.

• With the LEFT/RIGHT keys, it is possible to: – Activate the selected menu item. – Change the value of the selected menu item. – Activate the selected sub menu.

• When you press the MENU button twice while in top level SAM, the set will switch to the normal user menu (with the SAM mode still active in the background). To return to the SAM menu press the MENU button.

• The “OSD/STATUS/INFO/i+ ” key from the user remote will toggle the OSD “on/off” with “SAM” OSD remaining always “on”.

• Press the following key sequence on the remote control transmitter: “062596” directly followed by the MENU to switch to SDM (do not allow the display to time out between entries while keying the sequence).

menu items fit on the screen,

button

Figure 4 SAM menu

Menu explanation:

1. System Information: Op. Hour. This represents the life timer. The timer

• counts normal operation hours, but does not count Stand-by hours.

MAIN SW ID.

• “General” -> “Software Identification, Version, and Cluster” for the SW name definition.

• ERROR CODES . Shows all errors detected since the last time the buffer was erased. Five errors possible.

• OP1 / OP2. Used to read-out the option bytes. See “Options” in the Alignments section for a detailed description. Ten codes are possible.

3. Options.. Used to set the option bits. See “Options” in the

Erases the contents of the error buffer. Select the

Clear.

CLEAR menu item and press the MENU RIGHT key. The content of the error buffer is cleared.

“Alignments” chapter for a detailed description.

See paragraph “Service Modes” ->

How to Store SAM Settings To store the settings changed in SAM mode (except the OPTIONS and RGB ALIGN settings), leave the top level SAM menu by using the POWER button on the remote control transmitter or the television set. The mentioned exceptions must be stored separately via the STORE button.

How to Exit

Switch the set to STANDBY by pressing the mains button on the remote control transmitter or the television set.

Note:

• When the TV is switched “off” by a power interrupt while in SAM, the TV will show up in “normal operation mode” as soon as the power is supplied again. The error buffer will not be cleared.

• In case the set is in Factory mode by accident (with “F” displayed on screen), by pressing and hold “VOL-“ and “CH-” together should leave Factory mode.

5-3 PL9.1SM

2.4 Customer Service Mode (CSM)

Purpose

The Customer Service Mode shows error codes and information on the TV’s operation settings. A call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set. This helps them to diagnose problems and failures in the TV before making a service call. The CSM is a read-only mode; therefore, modifications are not possible in this mode.

Specifications

• Ignore “Service unfriendly modes”.

• Line number for every line (to make CSM language independent).

• Set the screen mode to full screen (all contents on screen is visible).

• After leaving the Customer Service Mode, the original settings are restored.

• Possibility to use enter the specific channel number on the RC.

How to Activate

To activate CSM, press the following key sequence on a standard remote control transmitter: “123654” (do not allow the display to time out between entries while keying the sequence).

Upon entering the Customer Service Mode, the following screen will appear:

“CH+” or “CH-” for channel surfing, or

Menu Explanation

1. Model Number.

2. Production Serial Number. Product serial no., e.g. SV1A0805123456 (*). SV= Production center, 1= BOM code, A= Service version change code, 08= Production year, 05= Production week, 123456= Serial number.

3. Software Version. Main software cluster and version is displayed.

4. Option Code 1. Option code information (group 1).

5. Option Code 2. Option code information (group 2).

6. Codes. Error buffer contents.

8. Display.

9. NVM Version. The NVM software version no.

10. PQ Version. PQ (picture quality) data version. This is a

11. Key (HDCP). Indicates if the HDMI keys (or HDCP keys)

12. Digital Signal Quality. Tuner signal condition in

13. Blank.

14. Audio System. Gives information about the audio system

15. HDAU. HDMI audio stream detection. “YES” means audio

16. Video Format. Gives information about the video format of

17. HD SW ID. Shows the HD DNM software version.

18. FPGA SW ID. Shows the FPGA software version (if

19. DFI SW ID. Shows the DFI software version (if present).

20. Standby uP SW ID. Shows the Standby Processor

Indication of the SSB factory ID (= 12nc). (*)

SSB.

subset of the main SW.

are valid or not.

percentage.

of the selected transmitter (MONO/STEREO).

stream detected. “NO” means no audio stream present. Only displayed when HDMI source is selected.

the selected transmitter (480p30/720p60/1080i50/1080i60, etc...). Is applicable to both HDMI and CVI sources.

present).

software version.

Type number, e.g. XXPFL5704D/F7

Indication of the display ID (=12 nc). (*)

Figure 5 CSM menu -1- (example)

Figure 6 CSM menu -2- (example)

(*)

If an NVM IC is replaced or initialized, these items must be re-written to the NVM. ComPair will foresee in a possibility to do this.

How to Exit To exit CSM, use one of the following methods:

• Press the MENU button twice on the remote control

transmitter.

• Press the POWER button on the remote control

transmitter.

• Press the POWER button on the television set.

5-4 PL9.1SM

3 Error Codes

3.1 Introduction

Error codes are required to indicate failures in the TV set. In principle a unique error code is available for every:

• Activated protection.

• Failing I2C device.

• General I2C error.

• SDRAM failure.

The last five errors, stored in the NVM, are shown in the Service menu’s. This is called the error buffer. The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right. An error will be added to the buffer if this error differs from any error in the buffer. The last found error is displayed on the left. An error with a designated error code may never lead to a deadlock situation. This means that it must always be diagnosable (e.g. error buffer via OSD or blinking LED procedure, ComPair to read from the NVM). In case a failure identified by an error code automatically results in other error codes (cause and effect), only the error code of the MAIN failure is displayed.

Example: In case of a failure of the I2C bus (CAUSE), the error code for a “General I2C failure” and “Protection errors” is displayed. The error codes for the single devices (EFFECT) is not displayed. All error codes are stored in the same error buffer (TV’s NVM) except when the NVM itself is defective.

3.2 How to Read the Error Buffer

You can read the error buffer in 3 ways:

• On screen via the SAM/SDM/CSM (if you have a picture). Example: – ERROR: 0 0 0 0 0 : No errors detected – ERROR: 6 0 0 0 0 : Error code 6 is the last and only

detected error

– ERROR: 9 6 0 0 0 : Error code 6 was detected first and

error code 9 is the last detected (newest) error

• Via the blinking LED procedure (when you have no picture). See “The Blinking LED Procedure”.

•Via ComPair.

5-5 PL9.1SM

3.3 Error Codes

4 The Blinking LED Procedure

In case of non-intermittent faults, write down the errors present in the error buffer and clear the error buffer before you begin the repair. This ensures that old error codes are no longer present. If possible, check the entire contents of the error buffer. In some situations, an error code is only the result of another error and not the actual cause of the problem (for example, a fault in the protection detection circuitry can also lead to a protection).

Code Error Description

0 No Error -- -- -- N/A -- -- --

1 DC Protection MT5382

2 +12V Failure WT61P7

3 Stand-by Control-

ler I2C

4 General I2C I2C0 Bus Error Log Communication Error on

5 # MT8280 I2C I2C0 Bus Error Log Communication Error with

6 System NVM I2C I2C0 Bus Protection Communication Error with

7 Tuner Tuner I2C Bus Error Log Communication Error with

8 IF/PLL Demodula-

tor

9 Ambilight FPGA I2C0 Bus Error Log Communication Error with

10 Reserved -- -- -- N/A -- -- --

11 Reserved -- -- -- N/A -- -- --

12 Reserved -- -- -- N/A -- -- --

13 HDMI Switch I2C I2C0 Bus Error Log Communication Error with

14 MT8280 DRAM1 DRAM R/W

15 Reserved -- -- -- N/A -- -- --

16 Reserved -- -- -- N/A -- -- --

17 Reserved -- -- -- N/A -- -- --

18 # Channel Decoder

I2C

19 # Pro Idiom I2C I2C0 Bus Error Log Communication Error with

21 # Bolt-On HDMI

NVM I2C

Detection via: Type

(7A01)

(7E23)

I2C0 Bus Protection Communication Error with

Tu ner I2C Bus Error Log Communication Error with

(7B02/03)

I2C0 Bus Error Log Communication Error with

Remarks

Protection DC_PROT = Low

Protection POWER_DOWN = Low

WT61P7

I2C0 Bus

MT8280

System NVM

Tuner TDQU

TDA9886

EC2S

Sil9185

Error Log R/W Error with DRAM1 or

DRAM2

MT5112 (reserved for BDS modules)

Pro Idiom (reserved for BDS modules)

BDS Bolt-On (reserved for BDS modules)

4.1 Introduction

The software is capable of identifying different kinds of errors. Because it is possible that more than one error can occur over time, an error buffer is available, which is capable of storing the last five errors that occurred. This is useful if the OSD is not working properly.

Errors can also be displayed by the blinking LED procedure. The method is to repeatedly let the front LED pulse with as many pulses as the error code number, followed by a period of

1.5 seconds in which the LED

is “off”. Then this sequence is

repeated.

Example (1) : error code 4 will result in four times the sequence LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After this sequence, the LED will be “off” for 1.5 seconds. Any RC5 command terminates the sequence. Error code LED blinking is in red color.

Example (2) : the content of the error buffer is “12 9 6 0 0” After entering SDM, the following occurs:

• 1 long blink of 5 seconds to start the sequence,

• 12 short blinks followed by a pause of 1.5 seconds,

• 9 short blinks followed by a pause of 1.5 seconds,

• 6 short blinks followed by a pause of 1.5 seconds,

• 1 long blink of 1.5 seconds

to finish the sequence,

• The sequence starts again with 12 short blinks.

4.2 Displaying the Entire Error Buffer

Additionally, the entire error buffer is displayed when Service Mode “SDM” is entered. In case the TV set is in protection or Stand-by: The blinking LED procedure sequence (as in SDMmode in normal operation) must be triggered by the following RC sequence: “MUTE” “062500” “OK ”. In order to avoid confusion with RC5 signal reception blinking, this blinking procedure is terminated when a RC5 command is received.

# If IC/board available.

3.4 How to Clear the Error Buffer

The error code buffer is cleared in the following cases:

• By using the CLEAR command in the SAM menu:

• If the contents of the error buffer have not changed for 50

hours, the error buffer resets automatically.

Note:

If you exit SAM by disconnecting the mains from the

television set, the error buffer is not reset.

5-6 PL9.1SM

5 Fault Finding and Repair Tips

Table 2 NVM editor overview

Notes:

• It is assumed that the components are mounted correctly with correct values and no bad solder joints.

•

any fault finding actions, check if the correct

Before options are set.

5.1 Software Protections

Most of the protections and errors use either the stand-by or the micro processor as detection device. Since in these cases, checking of observers, polling of ADCs, and filtering of input values are all heavily softwar

e based, these protections are referred to as software protections. There are several types of software related protections, solving a variety of fault conditions:

• Protections related to supplies:

Protections related to breakdown of the safety check

•

check of the 12V.

mechanism. E.g. since the protection detections are done by means of software, failing of the software will have to initiate a protection mode since safety cannot be guaranteed any more.

Remark on the Supply Errors The detection of a supply dip or playing of the set does not lead to

supply loss during the normal

a protection, but to a cold reboot of the set. If the supply is still missing after the reboot, the TV will go to protection.

Protections during Start-up During TV start-up, some voltages and IC observers are actively monitored to be able to optimize the start-up speed, and to assure good operation of all components. If these monitors do not respond in a defined way, this indicates a malfunction of the system and leads to a protection.

5.2 Hardware Protections

The only real hardware protection in an audio problem) the audio protecti

this chassis is (in case of on circuit that will trigger

the uP to switch “off” the TV.

Repair Tip

• It is also possible that you have an audio DC protection

because of an interruption in one or both speakers (the DC voltage that is still on the circuit cannot disappear through the speakers). Caution:

(dis)connecting the speaker wires during the ON state of the TV at high volume can damage the audio amplifier.

Hex Dec Description

Address 0x000A 10 Existing value

Value 0x0000 0 New value

Store Store?

5.4 Load Default NVM Values

It is possible to download default values automatically into the NVM in case a blank NVM is placed or when the NVM first 20 address contents are “FF”. After the default values are downloaded, it is possible to start-up and to start aligning the TV set. To initiat e a forced default download the following action has to be performed:

1. Switch “off” the TV set with the mains cord disconnected from the wall outlet (it does not matter if this is from “Standby” or “Off” situation).

2. Short-circuit the SDM jumpers on the SSB (keep short circuited).

3. Press “P+” or “CH+” on t

he local keyboard (and keep it

pressed).

4. Reconnect the mains supply to the wall outlet.

5. Release the “P+” or “CH+” when the set is started up and has entered SDM.

When the downloading has completed successfully, the set should be into Stand-by, i.e. red LED on.

Alternative method: It is also possible to upload the default values to the NVM with ComPair in case the SW is changed, the NVM is replaced with a new (empty) one, or when the NVM content is corrupted. After replacing an EEPROM (or with a defective/no EEPROM), default settings should be used to enable the set to start-up and allow the Service Default Mode and Service Alignment Mode to be accessed.

5.5 Display option code

Caution: In case you have replaced the SSB, always check the display option code in SAM, even if you have picture. With a wrong display option code it is possible that you have picture, but that in certain conditions you have unwanted side-effects.

5.3 NVM Editor

In some cases, it can be convenient if one directly can change the NVM contents. This can be done with the “NVM Editor” in SAM mode. With this option, single bytes can be changed.

Caution:

• Do not change these, without understanding the function of each setting, because incorrect NVM settings may seriously hamper the correct functioning of the TV set!

• Always write down the existing NVM settings, before changing the settings. This will enable you to return to the original settings, if the new se

ttings turn out to be incorrect.

5-7 PL9.1SM

6 Alignments

Note: Figures below can deviate

slightly from the actual

situation, due to the different set executions.

General: The Service Default Mode (SDM) and Service Alignment Mode (SAM) are described in chapter 5. Menu navigation is done with the CURSOR UP, DOWN, LE FT or RIGHT keys of the remote control transmitter.

6.1 General Alignment Conditions

Perform all electrical adjustments under the following conditions:

• Power supply voltage (depends on region): – AP-NTSC: 120 V – AP-PAL-multi: 120 - 230 V – EU: 230 V

– LATAM-N TSC: 120 - 230 V – US: 120 V

or 230 V

/ 50 Hz (± 10%).

/ 60 Hz (

± 10%).

/ 50 Hz (± 10%).

/ 50 Hz (

• Connect the set to the mains via an isolation transformer with low internal resistance.

• Allow the set to warm up for approximately 15 minutes.

• Measure voltages and waveforms in relation to correct ground (e.g. measure audio signals in relation to AUDIO_GND). Caution:

It is not allowed to use heatsinks as ground.

• Test probe: Ri > 10 Mohm, Ci < 20 pF.

• Use an isolated trimmer/screwdriver to perform alignments.

6.2 Hardware Alignments

There are no hardware alignments foreseen for this chassis.

6.3 Software Alignments

With the software alignments of the Service Alignment Mode (SAM), the RGB alignments can be performed:

• white tone (warm, normal, cool)

• black level offset

6.3.1 RGB Alignment

Before alignment, in customer menu, choose “Movie” as predefined picture and sound setting (“Auto Mode” button on RC). Also in menu “TV menu” > “TV settings” > “Pict ure”, set

• “Active Control” to “Off”

• “Color Enhancement” to “Off”

• “Dynamic Contrast” to “Off”

• “DNR” to “Off”.

White Tone Alignment:

• Activate SAM

• Select “RGB Align”

• Use a 75% white screen (Fluke 54200) or “Flat73” (Quantum Data 802BT) as input signal and set the following values: – All “R/G/B Gain” values initial to “128” (maximum). – All “R/G/B Offset” values (blacklevel) to “0”.

In case you have a color analyzer:

• Measure with a calibrated (phosphor- independent) color analyzer (e.g. Minolta CA-210) in the centre of the screen.

± 10%).

Consequently, the measurement needs to be done in a dark environment.

• Adjust the correct x,y coordinates (while holding one of the White point registers R, G or B on “128”) by means of decreasing the value of one or two other white points to the correct x,y coordinates (see table “White D alignment values”). Toler ance: dx: ± 0.004, dy: ± 0.004.

• Repeat this step for the other color Temperatures that need to be aligned.

• Select “Store” in the “RGB Align” menu to store the aligned values to the NVM.

Table 3 White D alignment values

Val ue

Cool (11500 K)

Normal (9000 K)

Warm (6500 K)

x 0.276 0.289 0.314

y 0.277 0.291 0.319

If you do not have a color analyzer, you can use the default values. This is the next best so

lution. The default values are

average values coming from production (statistics).

• Set the “R/G/B Gain” default values per temperature according to the values in the “Tint settings” table.

• Select “Store” in the “RGB Align” menu to store the aligned values to the NVM.

Table 4 Tint settings

nemngil

WARM_RED 255* 255*

WARM_GREEN 236* 236*

WARM_BLUE 180* 180*

NORMAL_RED 246* 246*

NORMAL_GREEN 248* 248*

NORMAL_BLUE 255* 255*

COOL_RED 210* 210*

COOL_GREEN 226* 226*

COOL_BLUE 255* 255*

74"24

Note: *These values were not available at the time of writing, therefore they come from an early production sample (for indication only). As soon as the production data become available, a Service Info or Service Manual update will be issued via the appropriate channels.

Black Level Offset Alignment

• Activate SAM.

• Select “RGB Align” and choose a temperature.

• For each temperature, the “R/G/B Offset” value should be set to “0”.

• Select “Store” in the “RGB Align” menu to store the aligned values to the NVM.

5-8 PL9.1SM

+ 50 hidden pages