AOC PLTV-1530A Schematic

15’’ LCD TV Color Monitor Protron PLTV-1530A

Service

31.5-60 kHz

TABLE OF CONTENTS

Description Page Description Page

Horizontal Frequency

Table Of Contents.......……......... ...... ..................…........1

Revision List.….............................. ...... . ............……......2

1. Monitor Specification.......................... ......………........3

2. Operating Instructions…………………...….……….......4

2.1 The Use of Remote Control..………….......................4

2.2 Front Panel Control Knobs.…............…..…...............5

2.3 OSD Operations .……….............................…............5

3 Input/Output Interface …………….............................10

3.1 Connecting description……......................................10

4. Mechanical Instructions………………….....................11

5. Repair Flow Chart ……………………….…….…….....16

6.BOM List..…………………………....….…………….....20

7. PCB Layout ………….……………………....……........35

7.1 Main Board.………........................................... ........35

SAFETY NOTICE

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE

CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

7.2 Adapter Board……..…..….....................,,,,.........38

7.3 Inverter Board ……………………………,,,……..39

7.4 Tuner Board….......................................,,,..........40

7.5 Key Board …................………..............,,,..........41

7.6 IR Board....………….............................,,,,..........41

8. Block Diagram.……................................,,,,..........42

8.1 Main Board.……………………...………,,,…..….42

8.2 Power Board…..…....…………..………,,,….......43

8.3 Exploded View..……….........................,,,.....…..44

9. Schematic Diagram………………………,,,……...45

9.1 Main Board………..……………………,,,,,,……..45

9.2 Adapter Board.....…........,,,.................................53

9.3 Inverter Board …………………………….………55

9.4 Tuner Board ……………,,,,,,,,,,,,,,,,,,,,,,,,,,,,…….56

15’’ LCD TV Color Monitor Protron PLTV-1530A

Revision List

Version Release Date Revision Instructions TPV Model

A00 July.-10-2006 Initial Release E565VNNKC3PRTM

15’’ LCD TV Color Monitor Protron PLTV-1530A

1. Monitor Specifications

Feature Items Specification

15＇＇ screen XGA ( 1024 x 768 ) Resolution

LCD Panel

TV Function

DPF function (Optional) Wireless earphone (Optional)

Video Inputs

Screen Size Aspect Ratio 4 : 3 Resolution 1024x768(XGA) Display Area (opening) H x V 304.128mmx228.096mm Pixel Pitch 0.297mm x 0.297mm Display colors 16.7 million Lamp Type/ Life 50000 hr Color Temperature Cool / Warm TV Standard NTSC, PAL-M, PAL-N Sound systems Color systems NTSC, PAL-M, PAL-N

Supported by memory card Not supported FM transmission frequency Not supported

AV、 S-VIDEO

Signal Input Analog: D-Sub 15 pin (detachable cable)

15＇＇ screen

MTS、SAP

RCA x 1

Audio L/R x 1 (Share)

S-Video x 1

PnP compatibility DDC 2B

PC Input

Audio Output Audio Output: L / R

OSD language English / French / Spanish / Portuguese Table Stand Included Wall Mount VESA 100 x 100 mm

Power

Panel Tilt Forwards/Backwards -5°~15 °

Environment

Dimension W x H x D (with stand) 371.5 x 353 x 147(mm)

Input frequency Recommended Analog: 1024x 768 (60Hz)

Input Audio A V (Share)

Power Supply AC100V~240V, 50/60Hz Power Consumption <50W

operating + 0 °C ~ + 40 °C storage - 25 °C ~ + 60 °C operating 10% ~ 85%

Analog：FH:31.5KHz to 60KHz

FV:56Hz to75Hz

Speaker (built-in): Two 2 watt speakers Headphone Mini-jack for stereo (3.5ø)

Weight (net) Kg (w/o Accessories) 3.5 Kg

Accessories

Remote Controller, Batteries (AAAx2), AC Power Cord, Adapter, User’s Manual, Signal Cable, Audio Cable

15’’ LCD TV Color Monitor Protron PLTV-1530A

2. Operations Instructions

2.1 The Use of Remote Control

POWER

Press to turn on/off the TV. The TV is never completely powered off unless it is physically unplugged.

0~9/100 Digit buttons

Press to select a TV channel.

Press through the TV channels, which are not erased. To view a blocked channel, use the digital buttons to access，the channel and enter your access code.

VOL Press + or – to adjust the volume.

Press to select your input source to PC.

SLEEP

With this key you can set a time period after which the TV should switch itself to standby. Press the key repeatedly to select the number of minutes. The counter runs from 30, 60, 90, 120 minutes.

PIP Not Supported.

POP

Not Supported.

or ( or ) to brows

Press repeatedly to display OSD menu.

V-CHIP

Press this button to setup parental control.

MUTE

Temporarily interrupt the sound or restore it.

DISPLAY

Press this button to Display Channel number on the right-top corner.

PRE-CH

To display the previously selected TV channel.

TV/VIDEO

Select your input source: press repeatedly to select TV, AV, S-VIDEO.

MTS /SAP

Press this key to activate Multichannel Television Sound, Stereo or Mono.

CAPTION Press this button to turn Closed Caption on. Be sure you have

selected Caption On in the Setup menu.

SIZE

Not Supported.

SWAP

Not Supported.

15’’ LCD TV Color Monitor Protron PLTV-1530A

2.2 Front Panel Control Knobs

Power Key⑦ : Press to turn on or off the TV. MENU Key⑥ : Press to show the OSD menu and exit OSD menu at the TV. Down / Up Key⑤④ : Press to perform select function and channel.

- / + Key②③ : Press to confirm your function selection and adjustment and volume control. Source Key① : Press to select your input source.

2.3 OSD Operations

How to use the Menu:

1. Press the MENU button to display each menu

2. Use the cursor up/down to select a menu item.

3. Use the cursor left/right to enter a submenu or enable/disable the function.

4. Press the MENU button to exit the menu.

Main Menu:

Press the MENU button into the main OSD (On Screen Display). Adjust item include PC SETUP, SOUND SETUP, OSD SETUP, TV SETUP and PICTURE SETUP.

PC Setup

1. Contrast, Brightness, Phase, Clock, H-Position, V-Position and Color are the functions for.

2. Auto Adjustment is the function auto-sizing for VGA input.

3. Color temper ature you may select or adjust color temperature (warm and cold) as you need.

15’’ LCD TV Color Monitor Protron PLTV-1530A

When color temperature is set to “user defined”, press the menu button, you can set your favorite color by adjusting the red, green, or blue one.

The “Reset To Default” is user-defined and is only used to reset the red, green, blue back to the default value.

4. Reset To Default is used to reset all settings to default value. Note: All the “Reset to Default” functions are the same except those in menus set by the user, which can reset all settings to default value in all menus.

SOUND Setup

1. Volume is adjusted from 0 to 100.

2. Bass and Treble are adjusted from 0 to 100. You can adjust picture Volume, Bass and Tre ble to the levels you prefer.

3. The adjustment range of balance is from 0 to 100.

0 to 50 is used to adjust the volume of right speaker from low to loud. 50 to 100 is used to adjust the volume of left speaker from loud to low.

4. The Mute is “ON” or “OFF”, and if the Mute is ON, there are no sound output

OSD Setup

15’’ LCD TV Color Monitor Protron PLTV-1530A

1. Set OSD language

2. Adjust the horizontal position of the OSD.

3. Adjust the vertical position of the OSD.

4. Adjust the OSD time-out.

5. OSD Background Adjustment

6. Show the resolution, H/V frequency and input port of current input timing.

Do not execute reset, return to main menu. (Note: This item is available only in PC mode)

TV Setup

1. AIR/CATV for different TV input solution, RF and cable.

2. Auto searching is used for searching all TV program channels. After finishing search and exiting, the machine

will save the program automatically, you can also press “menu” to break the searching, but only the searched programs are saved when the machine exits searching.

3. Add/Erase is for add or delete the current channel for memorizes.

4. Current Program is display the current channel number。

5. Sleep Timer

It is for set a time period after which the TV should switch itself to standby. The counter runs from Disabled 30 > 60 > 90 > 120 minutes. (The setting will be removed when using reset)

6. CLOSED CAPTION

It’s allows you to read the dialogue of television programs on the TV screen. Designed to help the hearing impaired, this feature uses on screen “ text boxes” to show dialogue and conversations wile the TV program is in progress. Captions will appear on the screen only during captioned broadcasts. Remark: the captions do not always use correct spelling and grammar. Not all TV programs and product commercials are made for broadcast with Closed Caption information included.

15’’ LCD TV Color Monitor Protron PLTV-1530A

Refer to your area’s TV program listings for the TV channels and times of closed Caption shows.

The captioned programs are usually noted in the TV listings with serviceMarks such as “CC”.

Caption Mode: CC1~CC4

Dialogue (and descriptions) for the action on the captioned TV program shows on screen. Text Mode: TT1~TT4 Often used for channel guide, schedules, bulletin board information for Closed Caption programs, news, weather information or stock marker reports. Not all Closed Caption modes are necessarily being use by a TV channel during the transmission of a Closed Caption program.

V-CHIP Setup

Select V-Chip on OSD then enter 4 digits of pin number. Initial pin number is “0000”. If you enter an incorrect pin number “Error” message will be displayed.

It is the parental control function (V-chip). It is used to block program viewing based on the ratings by the broadcaster. The default setting is to allow all programs to be viewed. Viewing can be blocked by the type of program and by the categories chosen be blocked. It is also possible to block all program viewing for a time period.

A. There are two item could be defined. One is TV Guidelines another one is Movie Guidelines. B. Setting up TV Guidelines

Use Up/Down arrow buttons to move around the matrix and press Right arrow button to change the value form “U” to “B” or ”B” to ”U”

U: Unblock B: Block

15’’ LCD TV Color Monitor Protron PLTV-1530A

C. Setting up Movie Guidelines

Use Up/Down arrow buttons to move around the matrix and press Right arrow button to change the value from “U” to ‘B” or “B” to “U”

D. CHANGE PIN Personal Identification Number is for change password to control the Vchip setup; it’s included

three steps. ENTER PIN to enable this function, then ENTER NEW PIN to change a new one. After that COMFIRM NEW PIN.

Picture Setup

1、 Contrast, Brightness and Saturation are adjusted from 0 to 100. 2、 Hue is adjusted from 0 to 100. 3、 Sharpness is adjusted from 0 to100.

Hue is only adjusted in NTSC telecast system. You can adjust contrast, brightness, saturation, hue, black level and sharpness to the levels you prefer.

4、Color Tone is for AV 、S-VIDEO and TV color , you can select warm or cool.

15’’ LCD TV Color Monitor Protron PLTV-1530A

3. Input/Output Interface

Remove the back plate at the back of the TV as shown on the illustration opposite. Lay the LCD TV with the scre en down on a table, as it will be easier to connect your peripheral equipment. Please take precaution not to damage the screen.

①: RF TV port

: Earphone output port②

③: Right channel input port ④: Left channel input port

: A V video port⑤ : PC signal port⑥ : 12V power input port⑦ : S⑧ -VIDEO video port

3.1 Connecting description

VIDEO RECORDER How to connect:

1. Connect the supplied antenna cable to the RF IN port of your VCR.

2. Connect another RF cable ① from the output RF of your VCR to the input of your TV. Better quality when playing from your VCR can be obtained if you also connect the Video, Audio LEFT AND right (only for stere o equipment) cables ⑤ to the VIDEO, AUDIO L and R inputs AV.

If your VCR has an S-VHS video jack:

For improved picture quality, connect a S-Video cable with the S-VIDEO input on the TV instead of connecting the VCR to the VIDEO port. S-Video does not provide audio, audio cables must still be connected to provide sound③④.

Watching VCR

1. If you use connection①, select the TV channel search.

2. If you use connection⑤, select AV.

3. If you use connection⑧. Select s-video

4. Insert videotape in the VCR and press the PLAY button.

DVD PLAYER

Connect the video output port of DVD player to the video input port of TV. Connect the left and right channels of DVD to the left and right channels of audio input of TV.

If your DVD player is equipped with S-VHS video port: For better quality picture, please connect the S port to the S input port of TV. Connecting the audio output ⑧ ports through audio cable is a must since S port is not attached with audio③④

How to play If you use connection , please select video AV input; ⑤ If you use connection , please select S⑧ -VIDEO input;

15’’ LCD TV Color Monitor Protron PLTV-1530A

CAMERA, CAMCORDER, VIDEO GAME SET … DIGITAL CAMERA How to connect

1. Connect your digital camera, camcorder, videogame set… to VIDEO port ⑤ AUDIO R ③ AUDIO L ④ for mono

equipment.

2. S-VHS quality with an S-VHS camcorder is obtained by connecting the

How to use

1. Select AV or S-VIDEO.

2. Turn on the external AV equipment.

HEADPHONE

1. Insert the plug into the headphone port ②, when insert headphone will block speaker audio output.

2. Press the

3. Press the cursor lift/right to adjust the volume.

TIPS Care of the screen

key on the remote control to switch off the sound from the headphone and the internal loudspeakers of the TV.

Do not rub or strike the screen with anything hard as this may scratch, mar, or damage the screen permanently. Unplug the screen before cleaning the screen. Dust the TV by wiping the screen and the cabinet with a soft, clean cloth. If the screen requires additional cleaning, use a clean, damp cloth. Do not use liquid cleaners or aerosol cleaners.

Mobile telephone warning

To avoid disturbances in picture and sound, malfunctioning of your TV or even damage to the TV, keep away your mobile telephone from the TV.

End of life directives

We are paying a lot of attention to produce environment ally friendly in green focal areas. Your new receiver contains materials which can be recycled and reused. At the end of its life specialized companies can dismantle the discarded receiver to concentrate the reusable materials and to minimize the amount of materials to be disposed of. Please ensure you dispose of your old receiver according to local regulations.

15’’ LCD TV Color Monitor Protron PLTV-1530A

4. Mechanical Instructions

Step Figure Description

Lay the LCD-TV

Preparation

on a flat, soft and clean surface.

Remove

the stand

Reverse the monitor

Remove the two screws on the stand to remove the stand.

Reverse the monitor to turn the front panel facing us.

15’’ LCD TV Color Monitor Protron PLTV-1530A

Remove the Bezel and the shield.

Remove the screws marked in red and disconnect the connectors marked in yellow to remove the bezel, and then remove the shield marked in blue.

15’’ LCD TV Color Monitor Protron PLTV-1530A

Remove the main frame.

Remove the four screws marked in red, disconnect the connector marked in blue, and then remove the main frame.

15’’ LCD TV Color Monitor Protron PLTV-1530A

Remove the insulation piece

Remove the Boards.

Remove the screw marked in red to remove the insulation piece.

Remove the eight screws marked in red to remove the boards.

15’’ LCD TV Color Monitor Protron PLTV-1530A

5. Repair Flow Chart

Defect Mode Failure Analysis Repair Testing

Abnormal

Display

Missing Line

Bright Dot

Dark Dot

Light Leakage

Mura

Image Stickin g

Dot Defect

Brightness Spot

Dot Defect

Particle

No display Check Power Board

Check Panel

Panel Change

Change Power Board

Noise

Check Main board

Check Panel

Check Keyboard

Check Line Connected Power board and Minored

Check Main board

Check Panel

Next Step

Change Main board

Change Panel

Change Keyboard

Change Wires

Change Main board

Change Panel

Test

Completed

15’’ LCD TV Color Monitor Protron PLTV-1530A

Noise Check Single Cable Change Single Cable

Flicker Check Main board Change Main board

Change Panel

Change Main board

Change Panel

Change LVD Cable

Change Panel

Abnormal Gray

R\G\B Display Abnormal

Check Panel

Check Main board

Check Panel

Check LVD Cable

Check Single Cable Change Single Cable

Check Main board Change Main board

Check Panel

Monitor Shut Down

No signal Check Single Cable Change Single Cable

Power on Display Abnormal

Check Power board Change Power board

Check Main board

Check Keyboard Change Keyboard

Check Main board

Change Main board

Next Step

Test

Completed

15’’ LCD TV Color Monitor Protron PLTV-1530A

LED Display Abnormal

Abnormal Keyboard

Abnormal OSD

LED Off

LED Dark

LED Abnormal

LED Flicker

Check Wires

Check Main board (DDC) U301 Rd

Check Keyboard

Check Main board

Change Keyboard or Main board or wire

Change Keyboard or Main board

Change Keyboard or Main board or wire

Change Wires

Change Main board

Change Keyboard

Change Main board

Check LVDS Wire

Change LVDS Wire

Next Step

Test

Completed

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