Haier L32A7A-A1 Manual de usuario

L32A7A-A1

Contents

1. Summarize

2. Main features

3. Appearance picture of complete set

4. Chassis appearance picture

5. Interface definition and interface electric requirements

6. Factory mode instructions

7. Structure size

8. The requirements of transportation, storage and usage

9. Appendix

1. Summarize

this chassis is used to match and connect the big screen LCD TV, it supports multi-system TV input signal ,

it can stored 256 TV programs at most, at the same time the highest resolution of this chassis can be up to

SXGA or appear R, G, B input signal of WXGA of 16:9 again, color appear again can support 24 bit, and it

can realize synchronous automatic check. It can support 1080P HD signal input at most, and includes two

rows CVBS signal, one row S terminal signal input, one row HDMI signal one row CVBS signal output.

Inbuilt 2x10W medium sound + 2x3W treble sound output, four rows two channels external audio signal

input, one row sound output. Support left and right sound balance, equalizer adjustment function.

Meanwhile, this chassis can support TV signal and PIP display in HD signal at the same time, and there are

3A picture optimise, 3A demo.

2. Main Features

LCD TV control panel support specifications:

The sound box part and the structure of complete set is separable,so it need install solely.

4. Appearance picture of chassis

5. Interface definition (see appendix 2) and interface electric requirements

1. Power interface: supply the working power to chassis from power board..

2. Background light control panel interface: control the switch and brightness of screen background light

S-VIDEO input

PC audio input

VGA input

Power input

socket

Key control

socket

Screen connecting

Wire socket

Background light

control interface

Up grading

socket

CVBS input

AV1video input

AV video output

Speakeroutput

Remote control

socket

（down）HD signal input

AVaudio output

AV1audio input

HD signal audio input

Earphone socket

The speaker power socket

HDMI input

Side AVsocket

3. Remote control interface: support Toshiba receiving negotiation.

4. Control panel interface: 7 button control.

5. Sound output interface: sound signal output.

6. Program upgrading interface: upgrading program. Only for factory use.

6. Factory mode instructions

This chassis use new HYF-35R remote controller (grey, 41 button, can not share with the original blue 35

button HYF-35R ), the method to enter the factory mode is: Screen-----P.STD------S.STD------Sleep Time.

The following is the instructions of the factory menu of V2.1 version program.

WHITE BLA White, dark balance adjustment

Name Description

R OFF

G OFF

B OFF

Whitebalanceadjustment

R GAIN

G GAIN

B GAIN

Darkbalanceadjustment

AUTOTUNE Automaticadjustment

FACTORY SET

Name Description

POWER STB ON: power standby OFF: standby memory

NOSYNC LOGO Screen saver without signal ON: open OFF: close

BACK LIGHT Background light brightness adjustment of screen: 0-255

DLC TEST Automatic brightness control switch 1:open 2:close

TV BACK SCREEN Background without signal BLUE: blue screen BLANK: blank screen

MCLK SDRAM : clock impulse 120-166 we recommend not

adjusting.

PIP SIZE PIP dimension MIDDLE: medium dimension LARGE: large dimension

INITEEPROM InitializeEEROM

INITTV Initialisedfactorysignal donotuse

PICTURE MODE Parameter of picture mode adjustment

COLOR TEMP Parameter of color temperature adjustment

SOUND MODE Parameter of sound mode adjustment

Never adjust the following other items

7. Structure dimension (see appendix 1)

Relevant dimension specifications of control panel PCB，The specification of screw hole: diameter 3.3mm

screw hole , the structure diagram of hole position

8. Transportation, storage and usage requirements

1. Never press heavily and bend

2. Eliminated static

3. Relative humidity: below 80%

4. Storage temperature: -10¬+40℃

5. Usage temperature: 0¬+40℃

9. Appendix

Appendix 1: the dimension diagram of structure

Appendix 2: interface definition table

XP600 (9PIN/2.5): Power interface

NO. Definition Description

1 STN Power-on signal(high-level is available)

2 GND Ground

3 5V CPU working voltage(standby but not power

off)

4 GND Ground

5 GND Ground

GND

12V

Ground

Chassis working power (standby but power off)

XP601 XP601A (3PIN/2.0):Background light control interface

NO. Definition Description

1 ADJ Background light brightness control

2 ON/OFF INVERTER ON/OFF (high level is

available )

3 GND Ground

XP501(4PIN/2.0): Remote control button interface

NO. Definition Description

1 IR Remotecontrolreceiving

2 +5V 5VPower

3 GND Ground

4 LED Powerindicatorcontrol

XP502(4PIN/2.0):

NO. Definition Description

1 KEY1 Control panel signal 1

2 GND Ground

3 KEY0 Controlpanelsignal2

4 GND Ground (air connect)

XP301 (Right sound), XP302 (left sound) (2PIN/2.5): Sound output interface

NO Definition Description

1 SPK+ Sound output signal +

2 SPK- Sound output signal -

XP503 (4PIN/2.5):

NO. Definition Description

1 5V CPU Power

2 GND Ground

3 RXD Signal interface

4 TXD Signal interface

L32A7A-A1

Drafted by：Chen Long Checked by：Peng You Approved by：Hu Xijia

User’s Manual

①

NO Power

Check power board 24V supply See background light is not on partCheck power board 12V supply

CPU is damaged replace

Check power board 5V supply

Check CPU Power-on signal

Check power boardAC input

Power boad is damaged,replace

Check and repair Power input part

with

without

②

Video Without Signal

TV Without

Check tuner 5V supple

Check if the bus control is normol

Check if the tuner is output

Check if the signal is input the

picture decode chip

Check if the chip supple,crystal

osciuator or bus control is normal

Chip is damaged,replace

Check and repair 5V supple part

Deck and repair bus control part

Tuner is damaged,replace

Check and repair if the signal

circuit is erroneous

Check an repair the chip relevant

circuit

with

without

Yes

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