Panasonic TC-32A400U Bedienungsanleitung

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ORDER NO. MTNC140103CE

32 inch Class 720p LED LCD TV

Model No. TC-32A400U

KM25 Chassis

TABLE OF CONTENTS

PAGE

1 Safety Precautions -----------------------------------------------3

1.1. General Guidelines ----------------------------------------3

1.2. Touch-Current Check--------------------------------------3

2Warning--------------------------------------------------------------4

2.1. Prevention of Electrostatic Discharge (ESD)

to Electrostatically Sensitive (ES) Devices ----------4

2.2. About lead free solder (PbF) ----------------------------5

3 Service Navigation------------------------------------------------6

3.1. PCB Layout --------------------------------------------------6

4 Specifications ------------------------------------------------------7

5 Service Mode -------------------------------------------------------8

5.1. How to enter into Service Mode ------------------------8

5.2. Hotel mode---------------------------------------------------9

6 Troubleshooting Guide---------------------------------------- 10

6.1. Check of the IIC bus lines------------------------------ 10

6.2. Power LED Blinking timing chart --------------------- 11

6.3. LCD Panel test mode ----------------------------------- 11

7 Disassembly and Assembly Instructions --------------- 12

7.1. Disassembly Flow Chart for the Unit ---------------- 12

7.2. Disassembly Procedure for the Unit----------------- 12

8 Measurements and Adjustments -------------------------- 17

8.1. Voltage chart of P-board-------------------------------- 17

8.2. Voltage chart of A-board------------------------------- 17

9 Block Diagram --------------------------------------------------- 18

9.1. Main Block Diagram ------------------------------------- 18

9.2. Block (1/2) Diagram ------------------------------------- 19

9.3. Block (2/2) Diagram ------------------------------------- 20

10 Wiring Connection Diagram --------------------------------- 21

10.1. Caution statement.--------------------------------------- 21

10.2. Wiring 1 ----------------------------------------------------- 21

1 Safety Precautions

1.1. General Guidelines

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

damaged by the short circuit.

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

installed.

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

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

5. 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.

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

out.

1.2. Touch-Current Check

1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.

2. Connect a measuring network for touch currents 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 Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.

4. Check each exposed metallic part, and measure the voltage at each point.

5. Reserve the AC plug in the AC outlet and repeat each of the above measure.

6. The potential at any point (TOUCH CURRENT) shall not exceed 0.5 MIU.

7. In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should be

repaired and rechecked before it is returned to the customer.

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

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 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

aluminum 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

comparable conductive material).

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

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

Caution

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

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

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

sufficient to damage an ES device).

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

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

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

opposite side. (see figure below)

Suggested Pb free solder

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

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

3 Service Navigation

3.1. PCB Layout

Board Name Function

A-Board Main

K-Board Remote Receiver, LED

P-Board Power supply, Power switch, Control Button

4 Specifications

Note

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

Power Source AC 110-127 V, 60 Hz

Power Consumption

Rated Power 60 W

Standby Power 0.2 W

Display Panel

Panel System LCD panel (LED backlight)

Screen size 32 inch class (31.5 inches measured diagonally)

W x H x Diagonal 15.7 inch x 15.4 inch x 31.5 inch (397.68 mm x 392.26 mm x 800.4 mm)

Number of pixels 1366 x 768

Speaker 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 - 95 °F (0 °C - 35°C)

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

Connection Terminals

VIDEO IN RCA PIN (VIDEO, AUDIO-L, AUDIO-R)

COMPONENT IN RCA PIN (Y, PB, PR, AUDIO-L, AUDIO-R)

HDMI IN 1/2 TYPE A Connector

USB USB2.0 Type A connector DC 5V, Max. 500mA

DIGITAL AUDIO OUT PCM / Dolby Digital, Fiber Optic

Dimensions (W x H x D)

Including pedestal 28.9 inch x 18.8 inch x 7.3 inch (734 mm x 477 mm x 184 mm)

TV Set only 28.9 inch x 17.2 inch x 2.8 inch (734 mm x 437 mm x 69 mm)

Mass

Including pedestal 13.3 lb. (6.0 kg) NET

TV Set only 12.2 lb. (5.5 kg) NET

5 Service Mode

5.1. How to enter into Service Mode

5.1.1. Purpose

After exchange parts, check and adjust the contents of adjustment mode.

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

5.1.2. 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 ( - )

5.1.3. How to exit

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

5.1.4. 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.

5.1.5. 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

shipment setting].

5.1.6. POWER ON TIME/COUNT

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-checks or any other command.

Main item Sub item Sample Data Remark

ADJUST V COM 65535

H-POS 0

H-AMP 0

V-POS 0

V-AMP 0

WB-ADJ R-GAIN F3

G-GAIN F0

B-GAIN FF

R-CENT 8E

G-CENT 80

B-CENT 79

OPTION BootLoader NO Factory Preset.

5.2. Hotel mode

1. Purpose

Restrict a function for hotels.

2. Access command to the Hotel mode setup menu

In order to display the Hotel mode setup menu:

While pressing [VOLUME (-)] button of the main unit,

press [INPUT] button of the remote control three times

within 2 seconds.

Then, the Hotel mode setup menu is displayed.

3. To exit the Hotel mode setup menu

Switch off the power with the [POWER] button on the

main unit or the [POWER] button on the remote control.

4. Explain the Hotel mode setup menu

When installing a number of units in a hotel or any facility, the

data in the master TV can be copied to a USB Memory and

then copy this data to the other TVs.

Item Function

Mode Select hotel mode off/on

Input Select input signal modes.

Set the input, when each time power is

switched on.

Selection:

---, ANT/Cable in, HDMI1, HDMI2,

Comp./Video

• OFF: give priority to a last memory.

Channel Select channel when input signal is ANT/

Cable in.

Set the channel, each time power is switched

on.

Selection:

Any channel number or [-].

[-] means the channel when turns off.

Volume Adjust the volume when each time power is

switched on.

Range:

0 to 100

Vol. Max Adjust maximum volume.

Range:

0 to 100

OSD Ctrl Restrict the OSD.

Selection:

Off/Pattern1

• Off: No restriction

• Pattern1: restriction

FP Ctrl Select front key conditions.

Selection:

Off/Pattern1/All

• Off: altogether valid.

• Pattern1: only input key is valid.

• All: altogether invalid.

Pow Ctrl Select POWER-ON/OFF condition when AC

power cord is disconnected and then

connected.

Off: The same condition when AC power

cord is disconnected.

On: Forced power ON condition.

Copy TV to USB To Copy the hotel mode settings from TV to

USB Memory.

Please follow the next steps:

1.- Insert USB Memory.

2.- Press cursor right “ ” or “OK” button on

the remote control.

(A file will be created to store the hotel mode

setting and channel scan data in the USB

Memory).

Indication: [ > ] [ In progress ]

[ Completed, pls power off ]

3.- Once completed, switch “OFF” the unit.

4.- Pull out the USB from unit.

Copy USB to TV To copy the hotel mode settings from USB to

TV.

Please follow the next steps:

1.- Insert USB Memory with data copied from

TV.

2.- Press cursor right “ ” or “OK” button on

the remote control.

(A file will be stored to TV).

Indication: [>] [In progress]

[ Completed, pls power off ]

3.- Once completed, switch “OFF” the unit.

4.- Pull out the USB from unit.

Item Function

6 Troubleshooting Guide

Use the self-check function to test the unit.

1. Checking the IIC bus lines

2. Power LED Blinking timing

6.1. Check of the IIC bus lines

6.1.1. How to access

Self-check indication only:

Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control

for more than 3 seconds.

Self-check indication and forced to factory shipment setting:

Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote

control for more than 3 seconds.

6.1.2. Exit

Disconnect the AC cord from wall outlet or press the [POWER] button on the main unit for 3 seconds to turn off and then turn on

automatically.

6.1.3. Screen display

6.1.4. Check Point

Confirm the following parts if NG was displayed.

DISPLAY Check Ref. No. Description Check Point

TUN IC6750 TUNER A-Board

EEPROM IC8902 EEPROM A-Board

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