Panasonic TH-C50HD18 Manual de usuario

rights reserved. Unauthorized copying and distribu-

tion is a violation of law.

ORDER NO. MTNC080425CE

B34 Canada: B07

50inch Class 720p Plasma HDTV

Model No. TH-C50HD18

GPH11DU Chassis

1 Safety Precautions

1.1. General Guidelines

1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.

2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the

wires have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the entire wiring unit instead.

3. When conducting repairs and servicing, do not twist the Faston connectors but plug them straight in or unplug them straight

out.

4. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or

damaged by the short circuit.

5. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly

installed.

6. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1.1.1. Leakage Current Cold Check

1. Unplug the AC cord and connect a jumper between the

two prongs on the plug.

2. Measure the resistance value, with an ohmmeter,

between the jumpered AC plug and each exposed metal-

lic cabinet part on the equipment such as screwheads,

connectors, control shafts, etc. When the exposed metal-

lic part has a return path to the chassis, the reading

should be between 1Mohm and 5.2Mohm.

When the exposed metal does not have a return path to

the chassis, the reading must be .

1.1.2. Leakage Current Hot Check (See

Figure 1.)

1. Plug the AC cord directly into the AC outlet. Do not use

an isolation transformer for this check.

2. Connect a 1.5kohm, 10 watts resistor, in parallel with a

0.15μF capacitors, between each exposed metallic part

on the set and a good earth ground such as a water pipe,

as shown in Figure 1.

3. Use an AC voltmeter, with 1000 ohms/volt or more sensi-

tivity, to measure the potential across the resistor.

4. Check each exposed metallic part, and measure the volt-

age at each point.

5. Reverse the AC plug in the AC outlet and repeat each of

the above measurements.

6. The potential at any point should not exceed 0.75 volts

RMS. A leakage current tester (Simpson Model 229 or

equivalent) may be used to make the hot checks, leakage

current must not exceed 1/2 milliamp. In case a mea-

surement is outside of the limits specified, there is a pos-

sibility of a shock hazard, and the equipment should be

repaired and rechecked before it is returned to the cus-

tomer.

Figure 1

2Warning

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically

Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-

trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and

semiconductor [chip] components. The following techniques should be used to help reduce the incidence of component damage

caused by electrostatic discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your

body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,

which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi-

num foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as [anti-static (ESD protected)] can

generate electrical charge sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most

replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara-

ble conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material

to the chassis or circuit assembly into which the device will be installed.

Caution

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise ham less motion such as the brush-

ing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient

to damage an ES device).

2.2. About lead free solder (PbF)

Note: Lead is listed as (Pb) in the periodic table of elements.

In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.

The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).

That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.

This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d

suggest the use of Pb free solder as well, although Pb solder may be used.

PCBs manufactured using lead free solder will have the PbF within a leaf Symbol PbF stamped on the back of PCB.

Caution

• Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40 °C) higher. Please

use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).

• Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).

If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb sol-

der. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.

• After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto the

opposite side. (see figure below)

Suggested Pb free solder

There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder. How-

ever, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also be used.

3 Service Navigation

3.1. Service Hint

Board Name Function Board Name Function

P Power Supply

P-Board should be exchanged for service.

C1 Data Driver (Lower Right)

C2 Data Driver (Lower Center)

A DC-DC Converter

Speaker out, Sound Processor

AV Terminal, AV Switch

Digital Signal Processor, Micon, HDMI Interface

Peaks Lite 2p

Format Converter, Plasma AI, Sub-Field Processor

C3 Data Driver (Lower Left)

SC Scan Drive

SU Scan out (Upper)

SD Scan out (Lower)

SS Sustain Drive

SS2 Sustain out (Upper)

K Remote receiver, Power LED SS3 Sustain out (Lower)

S Power Switch GS SD Card Slot

G Front Terminal, Key Switch

3.2. Applicable signals

* Mark: Applicable input signal for Component (Y, PB, PR) and HDMI

Note

• Signals other than those shown above may not be displayed properly.

• The above signals are reformatted for optimal viewing on your display.

horizontal frequency (kHz) vertical frequency (Hz) COMPONENT HDMI

525 (480) / 60i 15.73 59.94 * *

525 (480) /60p 31.47 59.94 * *

750 (720) /60p 45.00 59.94 * *

1,125 (1,080) /60i 33.75 59.94 * *

1,125 (1,080)/60p 67.43 59.94 *

1,125 (1,080)/60p 67.50 60.00 *

1,125(1,080)/24p 26.97 23.98 *

1,125(1,080)/24p 27.00 24.00 *

4 Specifications

Power Source AC 120 V, 60 Hz

Power Consumption

Maximum 497 W

Standby condition 0.2 W

Plasma Display panel

Drive method AC type

Aspect Ratio 16:9

Visible screen size 50 inch class (49.9 inches measured diagonally)

(W ×H ×Diagonal) 43.5 inch ×24.4 inch ×49.9 inch (1,106 mm ×622 mm ×1,269 mm)

(No. of pixels) 1,049,088 (1,366 (W) ×768 (H))[4,098 ×768 dots]

Sound

Audio Output 20 W [ 10 W + 10 W ] ( 10 % THD )

Channel Capability (Digital/Analog) VHF/ UHF: 2 - 69, CATV: 1 - 135

Operating Conditions

Temperature: 32 °F - 104 °F (0 °C - 40 °C)

Humidity: 20 % - 80 % RH (non-condensing)

Connection Terminals

VIDEO IN 1-2 VIDEO: RCA PIN Type ×1 1.0 V [p-p] (75 Ω)

S-VIDEO: Mini DIN 4-pin Y: 1.0 V [p-p] (75 Ω) C: 0.286 V [p-p] (75 Ω)

AUDIO L-R: RCA PIN Type ×2 0.5 V [rms]

COMPONENT INPUT 1-2 Y: 1.0 V [p-p] (including synchronization)

PB, PR: ±0.35 V [p-p]

AUDIO L-R: RCA PIN Type ×2 0.5 V [rms]

HDMI 1-2 TYPE A Connector ×2

This TV supports [HDAVI Control 3] function.

Card slot SD CARD slot ×1

AV PROG OUT VIDEO: RCA PIN Type ×1 1.0 V [p-p] (75 Ω)

AUDIO L-R: RCA PIN Type ×2 0.5 V [rms]

DIGITAL AUDIO OUT PCM / Dolby Digital, Fiber Optic

FEATURES 3D Y/C FILTER

CLOSED CAPTION V-Chip

Photo Viewer HDAVI Control 3

Dimensions (W ×H ×D)

Including pedestal 47.7 inch ×33.3 inch ×15.3 inch (1,210 mm ×844 mm ×387 mm)

TV Set only 47.7 inch ×31.2 inch ×3.7 inch (1,210 mm ×790.5 mm ×92.5 mm)

Mass

Including pedestal 82.7 lb. (37.5 kg)

TV Set only 78.3 lb. (35.5 kg)

Note

• Design and Specifications are subject to change without notice. Mass and Dimensions shown are approximate.

5 Service Mode

5.1. How to enter into Service Mode

While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds.

5.1.1. Key command

[1] button...Main items Selection in forward direction

[2] button...Main items Selection in reverse direction

[3] button...Sub items Selection in forward direction

[4] button...Sub items Selection in reverse direction

[VOL] button...Value of sub items change in forward direction ( + ), in reverse direction ( - )

5.1.2. Contents of adjustment mode

• Value is shown as a hexadecimal number.

• Preset value differs depending on models.

• After entering the adjustment mode, take note of the value in each item before starting adjustment.

5.1.3. How to exit

Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

Main item Sub item Sample Data Remark

ADJUST CONTRAST 000

COLOR 3C

TINT 03

SUB-BRT 800

WB-ADJ R-CUT 80

G-CUT 80

B-CUT 80

R-DRV FC

G-DRV F8

B-DRV D9

ALL-CUT 80

ALL-DRV FC

OPTION BOOT ROM Factory Preset

STBY-SET 00

EMERGENCY ON

CLK MODE 00

CLOCK 000

AGING RGBW

COUNT

ALL WHITE

ALL RED

ALL GREEN

ALL BLUE

ON/OFF

RAMP WHITE

RAMP RED

RAMP GREEN

RAMP BLUE

1% WINDOW

COLOR BAR

A-ZONE B-ZONE/4 TRIO

SCROLL

WHITE FLAME

RM-SET CODE A Fixed

SRV-TOOL - See next

5.2. Service tool mode

5.2.1. How to access

1. Select [SRV-TOOL] in Service Mode.

2. Press [OK] button on the remote control.

5.2.2. Display of SOS History

SOS History (Number of LED blinking) indication.

From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.

This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory ship-

ment setting].

5.2.3. POWER ON TIME/COUNT

Note : To display TIME / COUNT menu, highlight position, then press MUTE for (3sec).

Time : Cumulative power on time, indicated hour : minute by decimal

Count : Number of ON times by decimal

Note : This indication will not be cleared by either of the self-check or any other command.

5.2.4. Exit

1. Disconnect the AC cord from wall outlet.

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