AOC PLTV-1530A Schematic

15’’ LCD TV Color Monitor

Protron PLTV-1530A

Service

Service

Service

Horizontal Frequency 31.5-60 kHz

TABLE OF CONTENTS

Description

Page Description

Page

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

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

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

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

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

7.6IR Board....………….............................,,,,..........41 8. Block Diagram.……................................,,,,..........42

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

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

8.3Exploded View..……….........................,,,.....…..44 9. Schematic Diagram………………………,,,……...45

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

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

9.3Inverter Board …………………………….………55

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

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

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15’’ LCD TV Color Monitor				Protron PLTV-1530A
			Revision List
	Version	Release Date	Revision Instructions	TPV Model
	A00	July.-10-2006	Initial Release	E565VNNKC3PRTM

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

1. Monitor Specifications

	Feature	15 screen
		XGA ( 1024 x 768 ) Resolution

	Items		Specification
		Screen Size	15 screen
		Aspect Ratio	4 : 3
		Resolution	1024x768(XGA)
	LCD Panel	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
	TV Function
		Sound systems	MTS SAP
		Color systems	NTSC, PAL-M, PAL-N
	DPF function	Supported by memory card	Not supported
	(Optional)
	Wireless earphone	FM transmission frequency	Not supported
	(Optional)
	Video Inputs	AV S-VIDEO	RCA x 1	Audio L/R x 1 (Share)
			S-Video x 1
		Signal Input	Analog: D-Sub 15 pin (detachable cable)
		PnP compatibility	DDC 2B
	PC Input	Input frequency	Analog FH:31.5KHz to 60KHz
			FV:56Hz to75Hz
		Recommended	Analog: 1024x 768 (60Hz)
		Input Audio	AV (Share)
	Audio Output	Audio Output: L / R	Speaker (built-in): Two 2 watt speakers
			Headphone Mini-jack for stereo (3.5ø)
	OSD language	English / French / Spanish / Portuguese
	Table Stand	Included
	Wall Mount	VESA 100 x 100 mm
	Power	Power Supply	AC100V~240V, 50/60Hz
		Power Consumption	<50W
	Panel Tilt	Forwards/Backwards	-5°~15°
		operating	+ 0 °C ~ + 40 °C
	Environment
		storage	- 25 °C ~ + 60 °C
		operating	10% ~ 85%
	Dimension	W x H x D (with stand)	371.5 x 353 x 147(mm)
	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

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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.

CH

Press or ( or ) to brows 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.

PC

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.	MENU
	PIP	Press repeatedly to display
		OSD menu.
	Not Supported.	V-CHIP
	POP
		Press this button to setup
	Not Supported.	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.

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15’’ LCD TV Color Monitor	Protron PLTV-1530A
2.2 Front Panel Control Knobs

Power Key : Press to turn on or off the TV.

MENU Key : Press to show the OSD menu and exit OSD menu at the TV. Down / Up Key : Press to perform select function and channel.

- / + Key : Press to confirm your function selection and adjustment and volume control. Source Key : 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 temperature you may select or adjust color temperature (warm and cold) as you need.

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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 Treble 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

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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. 7

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

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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.

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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 screen down on a table, as it will be easier to connect your peripheral equipment. Please take precaution not to damage the screen.

: RF TV port

: Earphone output port: Right channel input port: Left channel input port: AV video port

: PC signal port

: 12V power input port: S-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 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 stereo equipment) cables 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 sound .

Watching VCR

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

2.If you use connection , select AV.

3.If you use connection . 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 ports through audio cable is a must since S port is not attached with audio

How to play

If you use connection , please select video AV input;

If you use connection , please select S-VIDEO input;

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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 AUDIO R AUDIO L 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 , when insert headphone will block speaker audio output.

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

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

TIPS

Care of the screen

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 environmentally 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.

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

Reverse the	Reverse the
	monitor to turn
monitor	the front panel
	facing us.

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15’’ LCD TV Color Monitor

Protron PLTV-1530A

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

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15’’ LCD TV Color Monitor

Protron PLTV-1530A

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

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15’’ LCD TV Color Monitor

Protron PLTV-1530A

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

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

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	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 Sticking

Dot Defect

Brightness Spot

Dot Defect

Particle

No display

Check Panel		Panel Change

Check Power Board			Change Power Board
	Check Main board		Change Main board
	Check Panel		Change Panel
	Check Keyboard		Change Keyboard
	Check Line Connected				Change Wires
	Power board and Minored

Noise			Check Main board		Change Main board
			Check Panel		Change Panel

Test

A	Next Step	NG
		Completed

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15’’ LCD TV Color Monitor

Protron PLTV-1530A

A Noise

Flicker

Abnormal

Gray

R\G\B

Display

Abnormal

Monitor

Shut Down

No signal

Power on

Display

Abnormal

A

Check Single Cable			Change Single Cable
Check Main board			Change Main board
Check Panel			Change Panel
Check Main board			Change Main board
Check Panel			Change Panel
Check LVD Cable			Change LVD Cable
Check Single Cable			Change Single Cable
Check Main board			Change Main board
Check Panel			Change Panel
Check Power board			Change Power board
Check Main board			Change Main board
Check Keyboard			Change Keyboard
Check Single Cable			Change Single Cable
Check Main board			Change Main board
Check Main board			Change Main board
		Next Step

Test

Completed

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15’’ LCD TV Color Monitor

Protron PLTV-1530A

A

LED Display

Change Keyboard or

LED Off

Abnormal

Main board or wire

Change Keyboard or

LED Dark

Main board

Change Keyboard or

LED Abnormal

Main board or wire

Change Keyboard or

LED Flicker

Main board or wire

Abnormal

Check Wires

Keyboard

Change Wires

Check Main board

(DDC) U301 Rd

Change Main board

Check Keyboard

Change Keyboard

Abnormal

Check Main board

Change Main board

OSD

Check LVDS Wire

Change LVDS Wire

Next Step

Test

Completed

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