Manual de instrucciones de Philips DPTV340

Manual de instrucciones del aparato Philips DPTV340

Aparato: Philips DPTV340
Categoría: Televisión CRT
Fabricante: Philips
Tamaño: 10.68 MB
Fecha de añadido: 5/4/2013
Número de páginas: 1848
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Resúmenes de contenidos
Resumen del contenido incluido en la página 1

Resumen del contenido incluido en la página 2

IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Philips Consumer Electronics Company** Equipment. The service procedures recommended by Philips and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended. It is important to note that this manual contains

Resumen del contenido incluido en la página 3

FIRE AND SHOCK HAZARD 1. Be sure all components are positioned in such a way as to avoid the possibility of adjacent component shorts. This is especially important on those chassis which are transported to and from the service shop. 2. Never release a repaired unit unless all protective devices such as insulators, barriers, covers, strain reliefs, and other hardware have been installed in accordance with the original design. 3. Soldering and wiring must be inspected to locate possible c

Resumen del contenido incluido en la página 4

LEAKAGE CURRENT COLD CHECK 1. Unplug the ac line cord and connect a jumper between the two prongs of the plug. 2. Turn on the power switch. 3. Measure the resistance value between the jumpered ac plug and all exposed cabinet parts of the receiver, such as screw heads, antennas, and control shafts. When the exposed metallic part has a return path to the chassis, the reading should be between 1 megohm and 5.2 megohms. When the exposed metal does not have a return path to the chassis, t

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TV SAFETY NOTES SAFETY CHECKS After the original service problem has been corrected, a complete safety check should be made. Be sure to check over the entire set, not just the areas where you have worked. Some previous servicer may have left an unsafe condition, which could be unknowingly passed on to your customer. Be sure to check all of the following: Fire and Shock Hazard Implosion X-Radiation Leakage Current Cold Check Leakage Current Hot Check Picture Tube Replacement Parts

Resumen del contenido incluido en la página 7

5. When troubleshooting and making test measurements in a receiver with a problem of excessive high voltage, reduce the line voltage by means of a Variac to bring the HV into acceptable limits while troubleshooting. Do not operate the chassis longer than necessary to locate the cause of the excessive HV. 6. New picture tubes are specifically designed to withstand higher operating voltages without creating undesirable X-radiation. It is strongly recommended that any shop test fixture which

Resumen del contenido incluido en la página 8

PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) Some semiconductor solid state devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices, Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD). 1. Immediately before handli

Resumen del contenido incluido en la página 9

PRACTICAL SERVICE PRECAUTIONS IT MAKES SENSE TO AVOID EXPOSURE TO ELECTRICAL SHOCK. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. ALWAYS RESPECT VOLTAGES. While some may not be dangerous in themselves, they can cause unexpected reactions – reactions that are best avoided. Before reaching into the powered color TV set, it is best to test the high voltage insulation. It is

Resumen del contenido incluido en la página 10

GENERAL INFORMATION The following Product highlights while specific to the 43PP92 model, are typical of the features found on many of the HDR2002, DPT300 Series Models. Product highlights Multipoint digital convergence Designed to meet the demands of curved CRT faceplates and short focal length lenses, our expansive 35-point convergence brings with it the accuracy of digital technology for flawless convergence of red, green, and blue guns and a superb picture with no colored haloes. Auto

Resumen del contenido incluido en la página 11

Coupled with the Philips Auto Format feature, you have excellent protection from the dreaded screen burn. Think of it as a screen saver for your TV. Active Control™ Continuous picture analysis and control of Automatic Digital Noise Reduction and Auto Sharpness. Automatically offers the best picture settings. The demo menu shows real-time adjustments of two parameters based on picture content. Eye Fidelity — Progressive Scan/Interlaced Eye Fidelity gives the consumer a choice between two differen

Resumen del contenido incluido en la página 12

Supporting features • Digital Color Transient Improvement (CTI) • Digital Histogram • Picture Freeze • Auto Aspect Ratio Adaptation • Incredible Surround™ • Automatic Volume Leveler (AVL) • Independent headphone volume control • EasyTune™ (Auto Search, Auto Tune, Auto Install) • Alternate Channel • AutoSurf™ • Low power standby (<1W)

Resumen del contenido incluido en la página 13

DISASSEMBLY PROCEDURES Disassembly Procedures (46, 50, 55, & 60 Inch Models) All numbers found in the following text refer to the CABINET DISASSEMBLY EXPLODED VIEW drawing and apply to 46”, 50”, 55”, and 60” models. NOTE: If you are servicing a PCB or speaker, you do not have to remove the plastic upper Back cover. Upper Back Cover (AC02) 1. Remove 12 screws (A). 2. Remove 3 screws (B). 3. Lift cover up to dislodge from pegs (J) and remove cover. Lower Center Back Cover (AC

Resumen del contenido incluido en la página 14

Service Position (Note: Unplug the AC Line Cord) This Service Position exposes the entire bottom side of the Power Supply Panel, Large Signal Panel (LSB), & the Small Signal Panel (SSM). A major portion troubleshooting can be accomplished after completing this procedure. Display Service Position 1. Remove Lower Back Cover. Remove 12 screws “B & C” required for Lower Back Cover Removal. Lower Back Cover Removal.

Resumen del contenido incluido en la página 15

2. Loosen the Chassis Frame. Remove 5 screws “D” that fasten the Chassis Frame to the Cabinet Bottom. Service Pos. Detail - A. 3. Remove Light Barrier (AC07) Service Detail - B

Resumen del contenido incluido en la página 16

4. Remove 2 screws “E” from the Left Side - Light Barrier Guide and remove this Guide. 5. Grasp the corners of the Chassis Frame and slide in towards you about a inch. This is required in order that 3 metal cleats (AC36) holding the front edge of the Chassis Frame are released. 6. While holding the back edge of the Chassis Frame down, grasp the Panel Mounting Bracket (AC21) and slightly lift the front of the Chassis Frame. Service Detail - C 7. With the rear of the Chassis slightl

Resumen del contenido incluido en la página 17

8. Now, lift the back edge of the Chassis Frame (nearest you), up while also lifting (slightly), the front edge to slide forward in to the Service Position shown. Service Position Detail - E Mirror Mounting Board (AC18) 1. Remove 6 screws located in the mirror mounting board brackets and remove the board. Note: Care should be taken NOT to place fingerprints or smudges on the mirror. Side Back Covers 1. Remove 4 screws (F) from each of the Side Back Covers. (Some prying may be

Resumen del contenido incluido en la página 18

Rear Jack Panel Cover (AC08 & AC27) 1. Complete steps 1 through 7 of the Service Position Procedure (see above). Note: Steps 3 & 4 may be omitted as removal of the Light Barrier and its Mounting Guide is not required. 2. With the Chassis loose from the cabinet bottom, and the entire chassis repositioned back towards the Cabinet Front, lift the left end of the Chassis Assembly in order to remove the previously hidden screw shown in the following detail. Note: This screw may be removed usin

Resumen del contenido incluido en la página 19

Jack Panel Screw Removals 6. Disconnect 2 Connectors from the top of the Rear Switch Panel. This Panel fastens to the Jack Panel Cover and may easily be removed or reconnected once the Jack Panel Cover is completely free of the Chassis Assembly. 7. Although all screws should now have be removed, care must taken on Core Models featuring the HD Input. The Jack Panel Cover has a plastic hook that clips in to a hole on the DVI Panel. Gently lift this hook while removing the Jack Panel

Resumen del contenido incluido en la página 20

Small Signal Panel (SSM) 1. Remove rear Jack Panel cover (AC08). 2. Remove 2 screws from the center of the SSP CBA. 3. Pull 3 tabs on right of panel bracket. 4. Lift right side of SSP, then move to the right to remove. Side Jack Panel 1. Remove Left Side Back Cover. (See procedure above.) 2. Remove 2 screws from panel. 3. Slide Side Jack Panel CBA out of bracket. PIP Panel Removal 1. Remove rear Jack Panel cover (AC08). 2. Remove 3 screws from PIP panel. Small Signal Board (SSB


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