Hitachi L32A403 - 31.51" LCD TV Bedienungsanleitung

Caution: Be sure to read this manual before servicing. To ensure safety from fire, electric shock, injury, harmful

radiation and materials, various measures are provided in this LCD TV. Be sure to read cautionary items described

in the manual before servicing. These servicing instructions are for use by qualified service personnel only. To

reduce the risk of electric shock, do not perform any servicing other than that described in the operating instructions

unless you are qualified to do so.

1. Summary

New High Gloss Black Frame; (4) HDMI™ (V.1.3 with x.v.Color™, CEC) - 1080p60, 1080p24; Input Compatible;

New Multi-Function Remote Control; Dynamic/Standard/Movie/Custom/Game Picture Memories; 3 Preset Color

Temperatures; Game Mode

LCD TV 2009-4

L32A403

HITACHI

9. Block Diagram.....……………..………….………......21

10. Schematic Diagram…………………………………22

11. Connection Diagram……….………….……..……..39

12. Wiring Diagram.………..………………....…….......40

13. PCB Layout……………………………....……….....41

14. Exploded View…………………..……….................51

15. BOM List……………..............................................52

1. Summary………..........……..........................……….........1

2. Features…….………..........................................……......4

3. Dimensions……..……………………………………………5

4. General Specification................................…………........6

5. Service points…………….…………….……………..........7

6. Adjustment……………..………..…….………..….…….....8

7. Troubleshooting………...……………………….…….......11

8. Self Dia

nosis Function…..…………………...……….....20

Table of Contents

HITACHI

L32A403

Caution for Safety

Please read this page before repair the TV.

The following safety precautions are designed to help you stay safe and prevent accidents during the repair work.

L32A403

2. Features

●Enhanced definition LCD display panel

V315B3- LN3 is a 31.5” TFT Liquid Crystal Display module with 6U-CCFL Backlight unit and 1ch-LVDS interface.

This module supports 1366 x 768 WXGA format and can display 16.7M colors.

●New High Gloss Black Frame

●(4) HDMI™ (V.1.3 with x.v.Color™, CEC) - 1080p60, 1080p24 Input Compatible

●New Multi-Function Remote Control

●Dynamic/Standard/Movie/Custom/Game Picture Memories

●3 Preset Color Temperatures

●Game Mode

L32A403

3. Dimensions

L32A403

4. General Specification

Inputs

Power Input: AC 120V, 60Hz

Power Consumption

Maximum Power: 150 W, 1.5 A

Antenna Input Impedance: 75 Ohm

Channel Coverage: 191ch.

VHF-Band: 2~13; UHF-Band: 14~69

CATV Mid Band: A5~A1, AI

Super Band: J-W; Hyper Band: W+1 - W+28; Ultra Band: W+29 - W+94

Television System: NTSC Standard, ATSC Standard (8 VSB, 64-QAM,

256-QAM)

Video: 1.0Vp-p, 75 Ohm

S-Video

Luminance(Y): 1.0Vp-p, 75 Ohm; Chrominance(C): 0.286Vp-p, 75 Ohm

Component Video

Luminance(Y): 1.0Vp-p, 75 Ohm; Chrominance(PB/PR): 0.7Vp-p, 75 Ohm

Audio Input Impedance: more than 20k Ohm

Average Input Level: 470mVrms

HDMI: (19 PIN)

Video

Display Resolution: 1366 x 768p

Wide Viewing Angle

Color Temperature Presets: High, Standard and Medium

Multiple Screen Fill Modes: (Auto/4:3/16:9/Zoom 1/ Zoom 2/Full)1

4MB 10-bit 3D Y/C Comb Filter

Picture Modes: Dynamic, Standard, Movie, Custom and Game

Audio

MTS Stereo/SAP

4 Sound Modes (Custom, Standard, Movie, News)

SRSTruSurround HD Sound

L32A403: 20W

Inputs/Outputs

Wideband Component Y, P B, PR

Composite Video

S-Video

Antenna (RF)Inputs

Optical Output

HDMI

Upgrade USB Slot

RGB Input

RGB Audio Input

Phone Jack for Headphones

L32A403

5. Service points

Lead-free solder

This product uses lead-free solder (unleaded) to help protect the environment. Please read these instructions

before attempting any soldering work.

1) Lead-free solder indicator

Printed circuit boards using lead-free solder are engraved with an label.

2) Properties of lead-free solder

The melting point of lead-free solder is 40-50℃higher than leaded solder.

3) Servicing solder

Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended. Although servicing with

leaded solder is possible, there are a few precautions that have to be taken. (Not taking these precautions

may cause the solder to not harden properly, and lead to consequent malfunctions.)

Precautions when using leaded solder

●Remove all lead-free solder from soldered joints when replacing components.

●If leaded solder should be added to existing lead free joints, mix in the leaded solder thoroughly after the

lead-free solder has been completely melted (do not apply the soldering iron without solder).

4) Servicing soldering iron

A soldering iron with a temperature setting capability (temperature control function) is recommended.

The melting point of lead-free solder is higher than leaded solder. Use a soldering iron that maintains a high

stable temperature (large heat capacity), and that allows temperature adjustment according to the part being

serviced, to avoid poor servicing performance.

Recommended soldering iron:

●Soldering iron with temperature control function (temperature range: 320-450℃)

L32A403

6. Adjustment

6.1 ADC adjustment

Ⅰ. In the TV mode adjust volume to zero, press menu key and then press number key 1 Æ9 Æ9 Æ9. It will

achieve the factory mode. Select the item of White Balance and press right key to enter it. The factory menu

follow picture:

Change TV, press the item “Current Source” to Component mode and change signal to 1080i mode, press the item

“Auto Color”; Change TV, press the item “Current Source” to PC mode and change signal to PC TIMING

137(1024X768) Pattern 147 (16 Grays), press the item “Auto Color”.

6.2 White Balance, Luminance Adjustment

Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment.

Before started adjust white balance, please set the Ca210 Channel to 05 Channel and set it’s mode to xyLv mode.

Color Temp. Cold Normal Warm

x 272 285 313

y 278 293 329

HDMI MODE

Y Panel max luminance

Note: The tolerance of the Cold color coordinates should be less than ± 10; The tolerance of the Normal

color coordinates should be less than ± 20; The tolerance of the Warm color coordinates should be less than

± 20;

How to setting the Ca210 channel, you can reference to Ca210 user guide or simple use the “Memory CH” up or

down to set the channel to 05 channel, and use the “Mode” key to set the mode to xyLv.

Following is the procedure to do white-balance adjust

L32A403

Note: We can only the HDMI white balance to cover the white balance of all source modes, this method is

meeting to the Zoran 775 software.

HDMI mode:

Ⅰ. In the TV mode adjust volume to zero, press menu key and then press number key 1 Æ9 Æ9 Æ9. It will

achieve the factory mode. Select the item of White Balance and press right key to enter it. The factory menu

follow picture:

Ⅱ.before to adjust the white balance, please press the factory mode OSD of “Reset” to reset all white

balance factory setting.

In the White Balance you can adjust 8 items.

1> R Offset, G Offset, B Offset ÆR, G, B Offset adjust.

2> R Gain, G Gain, B Gain ÆR, G, B Gain adjust.

3> ZR-Bright adjust;

4>ZR-Contrast adjust;

5>ZR-T ÆColot Temp adjust;

Ⅲ. Gain adjustment:

A. Adjust Cool color-temperature:

1. Set the pattern generator to pattern 104 or 0 IRE pattern. And adjust the Item “ZR-Bright” to min luminance.

2. Switch the Ca210 to xyLv-mode (with press “MODE” button)

3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)

4. The LCD-indicator on Ca210 will show x =272, y =278, Lv can adjust to max luminance.

5. Use the item Roffset and B Offset adjust to Adjust black balance: use 20 IRE(Pattern 190) signal,and adjust the

L32A403

black balance,until the Ca210 show x =272, y =278.

6. Use the item R Gain and B Gain to adjust white balance: use 100 IRE (Pattern 105) signal, and adjust the white

balance, until the Ca210 show x =272, y =278.

7. Adjust item “ZR-Contrast” to check color temperature is saturation or not: Add by 7 steps and then to adjust the

item R Gain and item B Gain to check the color temperature is saturation or not, until is saturation.

8. Enter the item “Color Temp” to select another color temperature to adjust.

B. Adjust Normal temperature:

1. Set the pattern generator to pattern 104 or 0 IRE pattern. Adjust the Item “ZR-Bright” value and can adjust to min

luminance

2. Switch the Ca210 to T△uvLv-mode (with press “MODE” button)

3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)

4. The LCD-indicator on Ca210 will show T=9300K.

5. Adjust the Color Temp item: Normal, until Ca210 indicator reached the value T=9300k.

C. Adjust Warm color-temperature:

1. Set the pattern generator to pattern 104 or 0 IRE pattern. Adjust the Item “ZR-Bright” value and can adjust to min

luminance

2. Switch the Ca210 to T△uvLv-mode (with press “MODE” button)

3. Switch the Ca210 channel to Channel 05 (with up or down “MEMORY CH” button)

4. The LCD-indicator on Ca210 will show T=6500K.

5. Adjust the Color Temp item: Warm, until Ca210 indicator reached the value T=6500k.

Press “Exit” button on remote control to quit from factory mode.

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