Acer AL1702 Schematic

Service Manual

17-inch LCD Monitor
AL1702

Service Manual Versions and Revision

No.VersionRelease DateRevision

1.1.0May 12, 2004Original release

Copyright

Copyright 2004 LiteOn Technology Corp.

All Rights Reserved

This manual may not, in whole or in part, be
copied, photocopied, reproduced, translated, or
converted to any electronic or machine readable
form without prior written permission of LiteOn
Technology Corp.

ACER AL1702 Service Manual.

Printed in Taiwan.

Trademarks

LiteOn is a registered trademark of LiteOn
Technology Corp.

All other trademarks are the property of their
respective owners.

AL1702

1) Circuit Description

1.Power Board Operation Therory--------------------------------------------------------------------------------------------3

2.Inverter--------------------------------------------------------------------------------------------------------------------------4

3.Interface-------------------------------------------------------------------------------------------------------------------------5

3.1 Top---------------------------------------------------------------------------------------------------------------------------5

3.2 Power------------------------------------------------------------------------------------------------------------------------5

3.3 VGA & DDC interface-----------------------------------------------------------------------------------------------------5

3.4 Scaler MST8111A---------------------------------------------------------------------------------------------------------5

3.5 Panel interface--------------------------------------------------------------------------------------------------------------5

3.6 Audio------------------------------------------------------------------------------------------------------------------------7

4.Others---------------------------------------------------------------------------------------------------------------------------7

4.1 Detection of POWER switch status------------------------------------------------------------------------------------7

4.2 Display mode identification----------------------------------------------------------------------------------------------7

4.3 Power ON sequence------------------------------------------------------------------------------------------------------8

4.4 Power OFF sequence-----------------------------------------------------------------------------------------------------8

4.5List of I/O Pin Assignments of the I307--------------------------------------------------------------------------------9

2) Trouble Shooting

1.No display of screen (Screen is black, color of LED is amber)--------------------------------------------------------11

2.Nothing displays on screen (Screen is black, color of LED is green)------------------------------------------------12

3.Checking the back light unit-----------------------------------------------------------------------------------------------15

4.Abnormal screen-------------------------------------------------------------------------------------------------------------16

Page 1

AL1702

6.Abnormal plug and play operation---------------------------------------------------------------------------------------18

7.Checking the interface circuit of sync signal----------------------------------------------------------------------------19

7.1 Checking the control circuit of horizontal sync pulse-------------------------------------------------------------19

7.2 Checking the control circuit of vertical sync pulse----------------------------------------------------------------19

8Checking the resolution change IC movement--------------------------------------------------------------------------20

9.Checking the DC/DC converter circuit-----------------------------------------------------------------------------------21

10.Checking the Audio circuit [option]--------------------------------------------------------------------------------------22

11.Checking inverter board circuit--------------------------------------------------------------------------------------------23

12.Power board------------------------------------------------------------------------------------------------------------------24

3) Spare Parts

Recommended Spare Parts List-------------------------------------------------------------------------------------------------25

Page 2

AL1702

1) Circuit Description

1.Power Board Operation

1.1Line filter consists of C801, T801, C802, C803, C804. It eliminates high frequency interference to meet EMI’s

requirement.

1.2Rec & Filter

Bridge diode D801 converts AC source into pulsed DC. This pulsed DC is smoothed and filtered by C805.

R802 is an NTC ( negative thermal coefficient ) resistor, used to reduce inrush current to be within safe range.

1.3Power transformer :

T802 converts energy for square wave from power source C805 to secondary side to generate +12V and +22V.

1.4Output :

The square wave from T802 is rectified by D809, D811, then filtered by C822, C817 to generate +12V and +22V

respectively. I804 is the regulator for +5V output.

1.5Driver :

Q803 drive T802 from PWM control of I801 for power converted.

1.6FB :

Negative feedback CKT consists of photo coupler I802 and adjustable regulator I803. It can maintain output

voltages +22V and +12V at a stable level.

1.7PWM :

1.7.1Start : When power is turned on, Q801 conducts due to bias from C805 and R805,R803. C807 is charged a

16 volt and a starting current about 0.3mA to pin 7 of I801. I801 starts to oscillate and outputs a pulse

train through pin 6 to drive Q803.

1.7.2OPP : When Q803 turns on, C805 supplies a linearly increasing triangle current through the primary

inductance of T802 to the driver Q803, once the peak value of this current multiplied by R811 exceeds1

volt, pulse train will be turn off immediately to protect Q803, T802 from being burned out.

1.7.3Regulation : If output voltage +22V or 12V goes up, the R terminal of I803 gets more bias, accordingly

photo transistor and photo diode flows more current. The voltage of pin 2 of I801 goes up too, making

the pulse width of pin 6 of I801 to become narrower. So the output voltage +5V will be pulled down to a

stable value.

1.7.4OVP : If +22V or 12V goes up too much, the induced voltage on pin 4 of T802 becomes large also.

Suppose that it is over 18 volts, ZD801 conducts, pin 3 of I801 is pulled up over 1 volt. The pulse train at

pin 6 of I801 goes down to zero, shutting Q803 off immediately.

1.7.5SCP : If output terminal is short to ground, photo transistor does not conduct, hence Q806 does not

conduct either. Then oscillation of I801 is stop, shutting Q803 off immediately.

Power Board Block Diagram

Line

Filter

Rec. &

Filter

PWM Driver

Power

Transformer

FB

Outpur Rec. & Filter

Page 3

AL1702

2.Inverter Operation

This unit operates on an output voltage of 22V from power source.

2.1VCC: When On/Off pin of P802 is high level input, Q106 turns on and provides +5VDC for I101 power supply.

2.2Control IC: I101 (OZ960S)

2.2.1Enable : When pin 3 of I101 is over 1.5V, I101 works. If it is under 1.5V, I101 turns off.

2.2.2OSC: When I101 enabled, R108/C115 (pin 17/pin18 of I101) determine the operating frequency.

2.2.3SST: C104 (pin 4 of I101) provides soft start function.

2.2.4Ignition: R109 (pin 8 of I101) provides higher operating frequency for more striking voltage until regula-

tion of feedback of lamp current. C103 (pin 1 of I101) determine the striking time.

2.2.5Dimming control: The divided voltage of R106/R105/R104 control the duty pulse of burst-mode to drive

Q105 and perform a wide dimming control for the CCFL. The burst-mode frequency is determined by C116.

2.2.6Regulation: Pin 9/pin 10 of I101 provide regulation of the CCFL current from feedback. The non-inverting

reference (pin 10 of I101) is at 1.25V nominal.

2.3Protection: Open-lamp protection in the ignition period is provided through both pin1 and pin 2 of I101 to ensure

a rated voltage is achieved and a required timing is satisfied.

Removal of the CCFL during normal operation will trigger the current amplifier (pin 9/pin 10 of I101) output and

shuts off the inverter. This is latch function.

2.4

2.4.1Output drivers: The configuration prevents any shoot-through issue associated with bridge-type power

conversion applications. Adjusting the overlap conduction between I102 P-MOSFET and I103 N-MOSFET,

I101 N-MOSFET and I103 P-MOSFET, the CCFL current regulation is achieved.

2.4.2Full-bridge switching/Transformer: I102/I103 /C123/T101 compose full-bridge switching to convert DC

into AC for driver the CCFL.

2.5Detection: C128/C129/C132/D115/D114/C118 detect the output voltage and ensure a rated voltage by pin2 of

I101.

2.6Feedback: D116/D117/R120/D108/R116 sense the lamp current for negative feedback and regulation. The divided

voltage on R116 will be at 1.25V.

Inverter Circuit Block Diagram

VCC

ON / OFF

Brightness

control

Regulator

U.V.P. Enable

OSC

SST

Dimming

control

VDD

Control IC : OZ960

Output driver

Protection

Ignition

Regulation

Full-bridge switching

Transformer

Detection

Feed back

Lamp

Page 4

3.Interface Operation

3.1Top (Circuit diagrams MAIN PWB 2 of 8)

This page is function block. (1) power. (2) VGA & DDC interface. (3) scaler MST8111B. (4) panel interface. (5)

audio (option).

3.2Power (Circuit diagrams MAIN PWB 3 of 8)

3.2.1P301 connector

A 5V power supply for LCD module, MCU, logic. And a 12V power supply for audio function. It is

generated from the P301 connector.

3.2.2I301 : 3-terminal regulator

A 2.5V power supply for scaler IC I305, it is generated from the 5V source.

3.2.3I302 : 3-terminal regulator

A 3.3V power supply for scaler I305, it is generated from the 5V source.

3.2.4Q303, I312 : ON/OFF control for LCD module power

ON/OFF control (PANELVCC_EN) is performed for power ON/OFF and also for the power saving

sequence.

3.2.5R306 : ON/OFF control for LCD module back light power

ON/OFF control (BKLT_EN) is performed for black light power ON/OFF and also for the power saving

sequence.

3.2.6Q301,Q302 : Adjust back light luminance for LCD module

It is adjusted back light luminance control (BKLT_ADJ) is performed for the back light luminance.

AL1702

3.3VGA & DDC interface (Circuit diagrams MAIN PWB 4 of 8)

The analog video signals input, the AC-coupled video signal video signal is used to clamp the black level at

0V. and H/V sync to sclaer, and DDC plug & play function.

3.3.1P302 connector

The video input signals from the P302 connector.

3.3.2I304 DDC EEPROM

This IC is support DDC2B of the VESA standard, also plug and play for the PC host.

3.4Scaler MST8111B (Circuit diagrams MAIN PWB 5 of 8)

The I305 is scaled converter LSI for the LCD monitor.

The analog R, G, B signal input entered from the video input circuit is converted into the digital data of video

signal through the incorporated A/D converter. Based on this conversion, this device performs interpolation

during pixel extension. These interpolation digital data are transformed to LVDS signal. The I305 source

voltage is 3.3V and 2.5V, the device clock frequency is 14.318 MHz. The device control signal is from MCU

through the 3-wire bus.

The I305 scaler has support OSD function.

3.5Panel interface (Circuit diagrams MAIN PWB 6 of 8)

3.5.1P305 connector

The P305 is LVDS bus, output to LCD module. The output voltage is 5 voltage.

3.5.2MCU (Circuit diagrams MAIN PWB 7 of 8)

The I307 MCU is system processor. It can programmed scaler, control power save sequence for the

system, input keypad function, output LED, control audio function, and ISP / DDC2Bi function.

Page 5

3.5.3X302 crystal

The X302 crystal is 11.0592MHz, support the operated clock to the MCU.

3.5.4Reset circuit

The C396, R379, D316 is support reset signal to the MCU, then MCU have output hardware reset signal

(HWRESET) to the scaler.

3.5.5I308 EEPROM

The I308 is 24LC16 EEPROM, the data transfer between I308 and MCU is effected through the IIC bus

SCL (pin14) and SDA (pin13) of MCU. The OSD related setting data, I305 control data and other service

data, to be stored in I308.

3.5.6P308 connector

The P308 has support keypad function. Control is give effect to for the push switch to be used when

the user changes the parameters, in order to modify the respective setting values. Whether the switch

has been pressed is identified with the switch input level that is turned “L”.

Each switch input port is pulled up at outside of MCU. Related ports of I307 based on Table 1.

Each parameter is stored in the I308 EEPROM, the contents of which are updated as required.

The P308 have LED Green and Amber light, the LED Green signal pin 36 from I307 MCU, and the LED

Amber signal pin 37 from I307 MCU.

AL1702

Table 1 Related ports of I307

Pin No. I/O Signal name Function Remarks
Pin 3 I KEY_POWER Soft power switch input Power key
Pin 2 I KEY_MENU Exit/Enter switch input Enter / withdraw from

OSD

Pin 41 I KEY_DOWN
Pin 42 I KEY_MINUS
Pin 1 I KEY_PLUS

↓ switch input
← switch input
→ switch input

Down key

- / Mute key
+ / Auto key

3.5.7Audio control function

The I307 MCU output signal control audio mute and power, the pin33 is mute signal, the pin32 is

controlled audio power signal.

3.5.8Scaler programmed function

The I307 MCU is used DDR direct bus, between I305 MST8111B and MCU I307.

3.5.9ISP and DDC2Bi function

The DDC2Bi is VESA standard for the host PC system, it can through DDC2Bi bus control LCD monitor.

The I309 will off DDC_CLK and DDC_DAT signal, when LCD monitor is no power.

Can use ISP function for firmware modification.

The pin29 is bus clock (DDC_CLK), the pin28 is bus data (DDC_DAT). It is same of the IIC data bus.

3.5.10The power save sequence function

First disable I307 pin31 (BKLT_EN) from H to L of LCD module back light power, delay some time, then

disable I307 pin9 (PANELVCC_EN) from H to L of LCD module power, and disable I307 pin32

(AUDIO_EN) from H to L of audio power, and through 3-wire bus programmed I305 MST8111B to

power down mode.

Page 6

3.6Audio (Circuit diagrams MAIN PWB 8 of 8) [OPTION]

3.6.1P309 connector

The audio signal input received from the audio input terminal P309 from the jack input of the jack

board, P309 is applied to amplifier I311 of pin4 (L-CH) and pin9 (R-CH) through the low-pass filter

consisting of R417, R418, C419 and C420.

3.6.2P310 connector

The audio signal is output to the audio output terminal P310, and to the internal speaker system.

3.6.3I310 MOSFET

I310 MOSFET (CEM9435A) is cut audio power (12V) for the power save sequence. The signal

(AUDIO_EN) is ON/OFF I310 MOSFET through the Q311 control.

3.6.4I311 amplifier

The I311 TDA7496L is audio amplifier, I311 operated power voltage is 12V.

I311 pin4 and pin9 is audio input port.

I311 pin14 and pin17 is audio output port.

I311 pin 12 is mute input from I307 MCU. The pin 6 is audio volume from the I305 MST8111B.

4Others

4.1Detection of POWER switch status

The MCU identifies the ON status of the two power supplies. The identification is made when the

power supply is turn off. For example, if the power supply is turn off with the POWER switch, the

POWER switch must be turn on when active the power supply again. If the power supply is turned off

by pulling out the power cord, then this power supply can be turned on by connecting the power cord,

without pressing the POWER switch.

4.2Display mode identification

4.2.1Display mode identification

The display mode of input signal is identified based on Table 2.

When the mode has been identified through the measurement of horizontal and vertical frequencies,

the total number of lines is determined with a formula of “Horizontal frequency / Vertical frequency =

Total number of number of lines”. Final identification can be made by examining the coincidence of the

obtained figure with the number of lines for the mode identified from the frequency. The Distinction

Hsync and Vsync of each mode is shown in Table 3.

When the detected frequency if the sync signal has changed, the total number of lines should be

counted even through it is range identified frequency in the same mode.

4.2.2Out of range

This out of range mode is assumed when the frequency out of the horizontal / vertical signal is as

specified below.

Vertical frequency : 56 ~ 76 Hz.

Horizontal frequency : 30 ~ 81.1KHz.

4.2.3Power save mode

The power save mode is assumed when the horizontal / vertical signals are as specified below.

If there is no horizontal sync signal input.

If there is no vertical sync signal input.

If the horizontal sync signal is outside the measuring range of MST8111B.

AL1702

If the vertical sync signal is outside the measuring range of MST8111B.

Page 7

Table 2 video mode

AL1702

Resolution H-Freq

(KHz)

Band Width

(MHz)

Polarity Mode

H V
1 720x400 (70Hz) 31.469 28.322 - +
2 640x480 (59.94Hz) 31.469 25.175 - ­3 640x480 (66.67Hz) 35 30.24 - ­4 640x480 (72Hz) 37.861 31.5 - ­5 640x480 (75Hz) 37.5 31.5 - ­6 800x600 (56.25Hz) 35.156 36 + +
7 800x600 (60Hz) 37.879 40 + +
8 800x600 (72Hz) 48.077 50 + +
9 800x600 (75Hz) 46.875 49.5 + +

10 832x624 (74.55Hz) 49.722 57.28 - ­11 1024x768 (60Hz) 48.363 65 - ­12 1024x768 (70Hz) 56.476 75 - ­13 1024x768 (75Hz) 60.023 78.75 + +
14 1152x864 (75Hz) 67.5 108 + +
15 1280x960 (60Hz) 60 108 + +
16 1280x1024 (60Hz) 63.981 108 + +
17 1280x1024 (75Hz) 79.976 135 + +

Table 3 the Hsync, Vsync distinction

Indication

Distinction Hsync Distinction Vsync The fixed
resolution
720 x 400

640 x 480

800 x 600

832 x 624

1024 x 768

1152 x 864

1280 x 960
1280 x 1024
1280 x 1024

30.5KHz≦fH≦32.5KHz 69Hz≦fV≦71Hz

30.5KHz≦fH≦32.5KHz 59Hz≦fV≦61Hz
34KHz≦fH≦36KHz 65.7Hz≦fV≦67.7Hz

36.9KHz≦fH≦38.9KHz 71.8Hz≦fV≦73.8Hz

36.5KHz≦fH≦38.5KHz 74Hz≦fV≦76Hz

34.2KHz≦fH≦36.2KHz 55.3Hz≦fV≦57.3Hz

36.9KHz≦fH≦38.9KHz 59.3Hz≦fV≦61.3Hz

47.1KHz≦fH≦49.1KHz 71.2Hz≦fV≦73.2Hz

45.9KHz≦fH≦47.9KHz 74Hz≦fV≦76Hz

48.7KHz≦fH≦50.7KHz 73.5Hz≦fV≦75.5Hz

47.4KHz≦fH≦49.4KHz 59Hz≦fV≦61Hz

55.5KHz≦fH≦57.5KHz 69Hz≦fV≦71Hz
59KHz≦fH≦61KHz 74Hz≦fV≦76Hz

66.5KHz≦fH≦68.5KHz 74Hz≦fV≦76Hz
59KHz≦fH≦61KHz 59Hz≦fV≦61Hz

62.9KHz≦fH≦64.9KHz 59Hz≦fV≦61Hz
79KHz≦fH≦81KHz 74Hz≦fV≦76Hz

mode

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17

Page 8

4.3Power ON sequence

When the POWER switch is pressed, the POWER OFF signal is turned “H”. when this “H” potential is

detected, the CPU begins to establish the respective power supplies according to the sequence show below.

AL1702

Power Switch

157 ms

LED_G (LED)

1.8 sec

PANELVCC_EN
(Panel VCC)

1.84 sec

PCLK/DATA
(LVDS bus)

2 sec

BKLT_EN
(Backlight Power)

2 sec

AUDIO_EN
(Audio VCC)

4.4Power OFF sequence

When the POWER switch is pressed, while the power supply is ON, the POWER ON signal is turned “H”.

when this “H” potential is detected, the CPU begins to turn off the respective power supplies according to

sequence show below.

Power Switch

LED_G

(LED)

PANELVCC_EN

(Panel VCC)

PCLK/DATA

(LVDS bus)

BKLT_EN

(Backlight Power)

AUDIO_EN

(Audio VCC)

90 ms

350 ms

316ms

90 ms

1.55 sec

Page 9

4.5List of I/O Pin Assignments of the I307

Pin No. Port Signal Name Initial

3 P5.0 KEY_POWER H ON/OFF monitor power
2 P5.1 KEY_MENU H OSD enter/exit enable
1 P5.2 KEY_PLUS H OSD right enable
42 P5.3 KEY_MINUS H OSD left enable
41 P5.4 KEY_DOWN H OSD down enable
38 P1.0 LED_G H LED green enable
37 P1.1 LED_A H LED amber enable
20 P1.2 SCL H Clock of 3-wire bus for scaler
21 P1.3 SDA H Data of 3-wire bus for scaler
22 P1.4 CSZ H Chip select of 3-wire bus for scaler
25 P1.5 HWRESET H Reset enable to scaler
29 P3.0 RXD H UART interface data IN
28 P3.1 TXD H UART interface data OUT
19 P3.2 INT H Interrupt signal from the scaler
13 P3.4 ISDA H EEPROM data bus
14 P3.5 ISCL H EEPROM clock bus
27 P6.0 DDC_WP L DDC EEPROM write protection
26 P6.1 VGA_DET H VGA cable connected
9 P6.3 PANELVCC_EN L Panel power enable
31 P6.5 BKLT_EN L Back light power enable
32 P6.6 AUDIO_EN L Audio power enable
33 P6.7 MUTE L Audio mute enable
Note : Other I/O pin assignments of the I305 MST8111B
73 PWM0 BKLT_ADJ - Backlight brightness control
74 PWM1 VOLUME - Audio volume control

AL1702

Function

Setting

Page 10

1. No display of screen (Screen is black, color of LED is amber)

Does OSM display when you push

PROCEED buttom.

AL1702

When a sugnal isn't being inputed, it is

indicated with "VIDEO INPUT". it is

indicated with "OUT OIF RANGE" at the

time of the frequency that it can't be

distinguished.

Check if the sync signal from computer is
output and if the video cable is connected

Proceed "checking the resolution change

Yes

normally.

OK

IC movement" section.

No Proceed "No OSM display" section.

NG

Input the sync signal of computer, or

change the cable.

Page 11

2. Nothing displays on screen (Screen is black, color of LED is green)

Is backlight lit?

AL1702

OK

Does computer output RGB video

Check OSM menu is display on screen
when you push the "PROCEED" key.

Proceed "Abnormal sreen" dection"

signals?

OK

OK

NG

NG

NG

Refer "Checking the backlight unit" section"

Check the video cable for failure. Check the host for output

1)Change pattern of video signal output on the host.

2)Rsconnect the video cable.

3)Change the video cable.

Check if the LCD video signal cable is connected between the

signal with all black only.

MAIN PWB and LCD module.

OK

NG

Failure Point

The cable is disconnected.

Page 12

Next Page

Continue

Check the 3.3V power are supplied on I302, pin2, 4.

AL1702

NG

OK

Check the 2.5V power are supplied on I302, pin2, 4.

NG

OK

Check if the voltage on I302 pin3 that is

Failure Point

I302 is failure

Check if the voltage on I302 pin3 that is

power DC at 5V.

OK

power DC at 5V.

OK

NG

NG

Failure Point

1) Printed wire broke between P301 pin1,
2 and I302.

2) Check power board.

Failure Point

1) Printed wire broke between P301 pin1,
2 and I302.

2) Check power board.

Next Page

Failure Point

I302 is failure

Page 13

Continue

Check the 5V power are supplied on

P305 pin 1, 2, 3 (to the LCD panel)

AL1702

NG

OK

Check the P305 all LVDS signals.

Check if theVoltage on I312 pin2 that is

Failure Point

I312 is failure.

DC power at 5V.

OK

Check if the TTL level on I312 pin,1

that TTL level is low.

OK

NG

NG

Failure Point

1) FB314 is open.

2) Printed wire broke between P305 pin1, 2, 3,
FB304, and P301 pin1, 2.

Check the PANELVCC_EN signal of the

rectangle input Q303 pin2 at TTL high

OK

Failure Point

1) Printed wire broke between Q303 pin 2 and
I307 pin9.

2) I307 is failure.

NG

level.

Failure Point

1) Prined wire broke between Q303 pin
3, R309, R308 and I312 pin1.

2) Q303 is failure.

NG

OK

Failure Point

1) The LVDS cable broke between P305
and LCD module.

2) LCD module is failure.

Page 14

Failure Point

1) Printed wire broke betweenP305 and
I305 LVDS signals.

2) I305 is failure.

3. Checking the back light unit

AL1702

Is +12V supplied to inverter PWB ? (by

the power board)

NG

OK

Check the BKLT_EN signal of the

rectangle input P301 pin 6 at TTL high

level.

NG

OK

Check the BKLT_ADJ signal of the input

P301 pin5 from I305 pin73 is a PWM

signal.

Failure Point

1) Inverter cable disconnection.

2) Power board failure.

Failure Point

1) printed wire broke between P301 pin6,
R306 and I307pin 31.

2) I307 is failure.

OK

NG

Failure Point

Back light unit of LCD module is failure.

Failure Point

1) printed wire broke between P301 pin5,
Q301, Q302 and I305 pin73.

2) I305 is failure.

Page 15

4. Abnormal screen

Check the R, G, B video signal from computer

input on P302 of video connector.

AL1702

NG

OK

Check the R, G, B input video signals on I305

pin63, 60, 58 respectively that their level is 0.5

to 0.7Vp-p.

NG

OK

Check all LVDS signals being output to P305

from I305?

NG

OK

Failure Point

1) No R, G, B video signals output from host
computer, check computer.

2) Video signal cable disconnection.

Failure Point

In the case of the Red signal. (A Green and
Blue signal is the same path, too.)

1)Printed wire broke between P302 pin 9 and
I305 pin63.

2) Video cable is failure.

3) R322 is short or open.

4) R318 is short or open.

5) C332 is short or open.

Failure Point

Printed wire broke between I305 and P305.

Page 16

Prpcess "Checking the resolution change IC

movement" section.

5. Abnormal OSM display adjust problem

Check the input TTL level whether was changed when

pressed function keys on the P308 pin3, 4, 5, 6. (normal is

high level, when push buttom, generated low level plus)

AL1702

OK

NG

Check the input TTL level whether was changed when
pressed function keys on the I307 pin1, 2, 41, 42. (normal
is high level, when push buttom, generated low level plus)

NG

OK

Failure Point

I307 is failure.

Failure Point

1) Function key wire disconnection.

2) Function key wire is failure.

3) Function key board is failure.

Failure Point

1) Printed wire broke between P308 pin3 and I307 pin41.

2) Printed wire broke between P308 pin4 and I307 pin2.

3) Printed wire broke between P308 pin5 and I307 pin1.

4) Printed wire broke between P308 pin6 and I307 pin42.

5) C404, C405, C406, C407 is short.

6) R367, R368, R369, R370 is short or open.

Page 17

6. Abnormal plug and play operation

Confirm the host computersupplies DDC2 mode.

AL1702

NG

OK

Check the voltage on P302 pin13 that is power DC

5 V.

NG

OK

Check the voltage on I304 pin8 that is power DC 5

V.

NG

OK

Failure Point

The host machine is not communicatiog in DDC2
mode.

Failure Point

TheVideo cable is failure.

Failure Point

1) Printed wire broke between I304 pin8, D309,
D310 and P302 pin13.

2) D309 or D310 is failure.

3) D315 is failure.

Check the voltage on P302 pin11, 12 that is serial

Check the output signal of serial data / clock on I304

Failure Point

1) Printed wire broke between I309 pin2, 3, I304
pin5, 6 and P302 pin11, 12.

2) I309 maybe failure.

3) R336, R337 is open.

4) C349, C350 is short.

data / clock signal.

OK

pin5, 6.

OK

NG

NG

Failure Point

TheVideo cable is failure.

Failure Point

I304 is failure.

Page 18

7. Checking the interface circuit of sync signal

7.1 Checking the control circuit of horizontal sync pluse

AL1702

Check the horizontal sync signal on P302 pin3 TTL

level.

NG

OK

Check the horizontal sync signal on I305 pin37 TTL

level.

NG

OK

Failure Point

Process "Checking the resolution change IC
movement" section.

Failure Point

Video cable is failure.

Failure Point

1) Printed wire broke between P302 pin3 and
I305 pin37.

2) FB313, R329 open.

3) R331, C346 short.

7.2 Checking the control circuit of vertical sync pluse

Check the horizontal sync signal on P302 pin2 TTL

Check the horizontal sync signal on I305 pin36 TTL

Failure Point

Process "Checking the resolution change IC
movement" section.

level.

OK

level.

OK

NG

NG

Failure Point

Video cable is failure.

Failure Point

1) Printed wire broke between P302 pin3 and
I305 pin36.

2) FB312, R328 open.

3) R330, C345 short.

Page 19

8. Checking the resolution change IC movement

AL1702

Check +3.3V supply on I305 pin11, 21, 84, 94, 104, 114, 126, 55,

Check +2.5V supply on I305 pin18, 87, 97, 117.

Check X301 14.318MHz clock input to I305 pin33 and 34 at TTL

65, 35, 45, 51, 53.

OK

OK

level.

OK

NG Proceed " Checking the DC/DC converter circuit" section.

NG Proceed " Checking the DC/DC converter circuit" section.

NG

Failure Point

1) Printed wire broke between X301 and I305 pin33, 34.

2) C371, C375 short or open.

3) X301 failure.

Check I305 pin32 HWRESET signal is low level at normal

Check I305 pin69, 70, 71 3-wire bus signal is (Same of the IIC

Failure Point

I305 failure.

operation.

OK

signal).

OK

NG

NG

Failure Point

1) Printed wire broke between I305 pin32 and I307 pin23.

2) R410, R380 open.

3) I307 failure.

Failure Point

1) Printed wire broke between I305 pin69, 70, 71 and I307 pin20, 21,

22.

2) I307 failure.

Page 20

9. Checking the DC/DC converter circuit

Check the 5V is output from P301 pin1, 2

AL1702

NG

OK

Check the 5V is input to I302 pin3.

NG

OK

Check the 3.3V is output from I302 pin2, 4.

NG

OK

Check the 5V is input to I301 pin3.

Failure Point

1) Power wire disconnection.

2) Power board is failure.

Failure Point

1) Printed wire broke between P301 pin1. 2
and I302 pin3.

2) FB301, FB302 open.

Failure Point

I302 is failure.

NG

OK

Check the 2.5V is output from I301 pin2, 4.

NG

OK

Failure Point

1) Printed wire broke between I301 pin2. 4, I302
pin2, 4 and I305 MST8111A power supply pin.

2) FB314, FB315, FB316, FB317, FB318, FB319
open.

Failure Point

1) Printed wire broke between P301 pin1. 2
and I301 pin3.

2) FB301, FB302, FB305 open.

Failure Point

I301 is failure.

Page 21

10. Checking the Audio circuit [OPTION]

Check the Audio signal input to P309

AL1702

NG

OK

Check the 12V is input to I310 pin5, 6, 7, 8.

NG

OK

Check the 12V is input to I311 pin15, 16.

NG

OK

Check the VOLUME PWM signal input to I311

pin6.

NG

OK

Check the MUTE signal is input to I311 pin12 at

high level.

Failure Point

1) Audio wire disconnection.

2) Audio Jack board failure.

Failure Point

1) Printed wire broke between P301 pin7. 8
and I310 pin1, 2, 3.

2) FB320 open.

3) Printed wire broke between I307 pin32 and
I310 pin4.

4) Q311 failure.

5) I310 failure.

Failure Point

1) Printed wire broke between I310 pin5, 6, 7,
8 and I311 pin15, 16.

2) L301 open.

3) C412 short.

Failure Point

1) Printed wire broke between I305 pin74 and
I311 pin6.

2) C422 short.

3) I305 failure.

Page 22

OK

Check the Audio output signal to Speaker.

OK

Failure Point

I311 failure.

NG

NG

Failure Point

1) Prined wire broke between I307 pin33 and
I311 pin12.

2) C414 short.

3) I307 failure.

Failure Point

1) Speaker failure.

2) Prined wire broke between I311 pin14, 17
and P310.

3) C415, C418 open or short.

11. Checking inverter board circuit

Check C101 pin is around .

On/off pin of P802 is over 2V.

Brightness pin is between 0V and 3.5V.

AL1702

OK

Check pin 5 of I101 is 5V.

OK

Check CN102, CN103 is connected

right.

OK

Check pin 3 of I101 is over 2V.

OK

Check pin 18 of I101 is triangle

pulse.

OK

Check pin 4 of I101 there is soft start
edge up to 4V and pin 11, 12, 19, 20

there is some pulse output.

OK

NG

NG

NG

NG

NG

NG

It is not inverter problem.

Check Q106, Q102 and repair them.

Check CCFL and repair them.

Check R128 and repair it.

Check C115, R108, I101 and repair

them.

Repair I101.

Check pin 2 of I101 there is below

2V from output detection.

OK

Check full-bridge (I102, I103, D102,

D103, C123) work right.

OK

Check transformer (T101) work right.

and repair it.

NG

NG

Check C128/C129/C132/D115/

D114/C118 and repair them.

Repair them.

Page 23

12. Power Board

AL1702

Check output voltage +5V, +12V and 22V

Check power switch is turn on or not.

Check power cord (P801), signal

cable (P302), P802, P803, CN102,

CN103 is connected right or not.

Check C805 is about DC140V-330V

Check C807 is over 10V or not.

is right or not.

No

Yes

Yes

or not.

Yes

Yes

Yes

No

No

No

No

It is not power board problem.

Turn switch on.

Connect it right

Check F801, D801, P801 and repair

them.

Check R805, R803, I801 and repair

them.

Check pin 6 of I801 have same

pulse or not.

Yes

Check pin 1 of T802 have same

pulse or not.

Yes

Check peak voltage of R811 triangle

pulse is up to 1 volt or not.

Yes

Check D809, D810, D811, C818,

C817, C822, T802 have same short

circuit, or the output +5V/+12V/+22V

is over load.

Yes

Check feedback circuit around I802,
I803 and the other components and

repair them.

No

No

No

No

Check peripheral co,of I801 and

repair them.

Check Q803, R813, R814, D806,

R812 and repair them.

Check D804, R807 and repair them.

Repair them.

Page 24

AL1702

3.Recommended Parts List

Note: 1.If you have spare parts need, please check BOM to get the last release part number and

related information.

No.LocationPart Number Description

1I3016442036518IC Linear AIC 1117-25CETR TO-252

2I3026442023326IC Linear AIC 1084-33CM TO-263

3I3046448018208IC 24LC02B SOP-8 MICROCHIP

4I3046448018218IC M24C02 SOP-8 ST

5I3056444015206IC MST8111B QFPQ-128 Mstar

6I3086448016508IC 24LC16B SOP-8 MICROCHIP

7I3086448016518IC M24C26 SOP-8 ST

8I3126444014708FET P-Channel AO3401 SOT-23 AOS

9I3076448015578IC MTV312MV64-AJ PLCC44 Myson

10X3016449006400Crystal 14.318MHz AT-49 TOPICS

11X3026449004820Crystal 11.0592MHz AT-49 TOPICS

12I3116442023100IC Amplifier TDA7496L PDIP20 ST

13L3016111456131Coil Choke 45uH DRWW 10x10

Page 25

2

A

B

3 4 5 6 7

9

8

13

6-1

6-2

118 9 10 12 13 14

1

1-1

4

5

AUTH ZONE ECNLTR

Carol

A

REVISIONS

DESCRIPTION

RELEASE FOR PRELIMINARY

15

DATE

APPROVED

A

B

26

C

D

E

F

G

H

I

J

K

1 2

10

6-3

22

15

16

14

17

7

19

18

12

11

1-3

3

1-2

2

25

20

C

D

E

21-9

3 4 5 6 7

ITEM SUB-ITEM

1

7737510250-0A

1-1

7742226850-0A
1-2
1-3

7742302330-0A

51138001382 PUSH BUTTON BD 1

3

7140130081

4

6814701400

5

7746501720-0A

6

7737807400-0A
6-1

7748708640-0A
6-2

7746501590-0A
6-3

23

21-5

21-2

21-11

24

21-4

21-3

21-1

21-13

21-10

21-12

21-6

21-8

21-7

MATERIAL:

SEE TABLE

FINISH:

PROCESS:

USED ON:

M17AAQ

DRAWN

DESIGN

Carol Huang

CHECK

APPROVE

118 9 10

12 13

7742002971-0A

7

7111230061-0A

9

7111230061-0A

10

7116240081-0A

11
12

7111230061-0A

13
14

7748708650-0A

15
16

7742404500-0A

17

7140330122-0A

18

7746203470-0A

19
20

7742225150-0A

21

7737706850-0A

21-1
21-2

7742003070-0A

21-3

7742003060-0A

21-4

7748707730-0A

21-5

7742609570-0A

21-6

7742609560-0A

21-7

7112750581-0A

21-8

7385001501-0A

21-9

7742001150-0A

21-10
21-11
21-12

7740410053-0A

21-13

22

7140840122-0A23 2SCREW M4x12(FC-R/C)

24

7740201140-0A

25
26

7141220061-0A

DATE

07/23'03

5113300481

7110430051

7130430061

7110430051

7140240201-0A

5114100017

6857104501

LITE-ON TECHNOLOGY CO.

TITLE

M17AAQ EXPLODE DWG

SCALE

1/1

F/C ASS'Y
FRONT COVER
PUSH BUTTON7742806820-0A

SCREW M3x8L(BUTTON-BD)

QDI PANEL

BARRIER BOTTOM

QDI-CHASSIS ASS'Y

QDI CHASSIS BK

BARRIOER TOP

RUBBER

SCREW M3x6(I/F BD)

SCREW M3x6(PW BD)
SCREW M4x8(PW BD)

INTERFACE BD

SCREW M3x6(I/F BD)

SCREW M3x5(PANEL)

AC SUPPORT

SCREW M3x6(AC BK)

LOGO TYPE

SCREW M4x12(CHASSIS-F/C)

SCREW M3x5(CHASSIS-SHIELD)

REAR COVER

HINGE+BASE ASS'Y

WASHER-R

WASHER-L
AXIS-SUPPORT
AXIS-WHEEL-R
AXIS-WHEEL-L

SCREW M5x58(R-AXIS-L)

WASHER(AXIS)

NUT M5-7210050341(AXIS)

SCREW M4x14(STAND-BLOCK)

FOOT PAD7742001030-0A

AUDIO BD

SCREW M4x14-7110440142(R/C-AXIS)

SPEAKER

SCREW M2x6(SPEAKER)

DWG. NO.

1A

PART NO.

LENS

SHIELD 1

BASE 1

14

Q'TYPART NO. DESCRIPTION

1
1
1
1

3
1
1
1
1
1
2
2
151143000378 POWER BD
3
1
1
4
4
1
2
1
2

1
1
1
17742609580-0A AXIS STAND
1
1
1
1
1
1
1
1
17742609590-0A STAND-BLOCK
3

6

2
1
4

SHEET

1 1

F

G

H

K

OF

15

5

4

3

2

1

D D

SCHEMATIC REV 02 PTB-1468

27 April 2004

ROAD MAP

ACER AL1502 / AL1702

C C

TITLE SHEET
TOP
POWER
VGA & DDC INTERFACE
SCALER MST8111/6B
PANEL INTERFACE 6
AUDIO

REVISION HISTORY

DESCRIPTION

REV.

BASED ON SCHEMATICS FOR ACER

02 27 April '04

B B

DESCRIPTION

BY

KT.LIN

SHEET NO.

1
2
3
4
5

7

LAST UPDATE

A A

Custom18

M15_17AAX
TITLE SHEET

8814680000-02
6832146800-02

1

Size:

LITE-ON TECHNOLOGY CO.

Date:

DRAWN:

CHECK:

APPRO:

5

4

3

2

DESIGN:

Date:

CHECK:

Date:

APPRO:

Sheet: of

Title:

Date:

DWG.NO:

Date:

PCB. NO:

Date:

5

4

3

2

1

D D

VCC5V

C C

VCC5V

VCC3V3

VCC2V5

B B

VDD15V

VDD15V

VCC5V

VCC5V

DDC5V
DDC_WP

DDC_DAT
DDC_CLK

VGA_DET

VGA_DET
DDC_CLK
DDC_DAT
DDC_WP
DDC5V

MUTE
AUDIO_EN

PANELVCC_EN
BKLT_EN
PANEL12V_EN

PANEL12V_EN
BKLT_EN
PANELVCC_EN

AUDIO_EN
MUTE

B1

VCC5V

DDC5V

DDC_WP
DDC_DAT

DDC_CLK

GNDR
GNDG

GNDB
HSYNC
VSYNC

RIN
GIN

SOG

BIN

VGA_DET

3.VGA & DDC INTERFACE

B3

VGA_DET
DDC_CLK ALE

RDZ

DDC_DAT
DDC_WP

WRZ

HWRESET

DDC5V
VCC5V
MUTE

AUDIO_EN

PANELVCC_EN
BKLT_EN
PANEL12V_EN

6.MCU

B4

PANEL12V_EN
BKLT_EN
PANELVCC_EN

VCC3V3
VCC2V5

VCC5V
VDD15V

2.POWER

B6

AUDIO_EN
MUTE

VCC5V DGND

VDD15V

7.AUDIO

IVCOM

VLCD12V

VLCD

BKLT_ADJ

DGND

VOLUME

INT
AD0
AD1
AD2
AD3

RIN
GNDR
GIN
GNDG
SOG
BIN
GNDB
HSYNC
VSYNC

ALE
RDZ
WRZ
HWRESET
INT
AD0
AD1
AD2
AD3

IVCOM

VLCD12V

BKLT_ADJ

VOLUME

VLCD

B2

RIN
GNDR

GIN
GNDG
SOG

BIN

GNDB
HSYNC

VSYNC

ALE

RDZ

WRZ
HWRESET

INT
AD0

AD1
AD2
AD3

BKLT_ADJ

VOLUME

4.SCALER MST8111/6B

VCC2V5

VCC3V3

PA[0..7]

PA[8..13]

PA[14..19]

PB[0..5]

PB[6..11]

PB[12..23]

GPO[0..4]

VCC2V5

VCC3V3

B5

PA[0..7]
PA[8..13]
PA[14..19]

PB[0..5]
PB[6..11]
PB[12..23]

GPO[0..4]

ESP

OSP

ESP
OSP

IVCOM

PA[0..7]
PA[8..13]
PA[14..19]

PB[0..5]
PB[6..11]
PB[12..23]

GPO[0..4]

OSP
IVCOM

VLCD12V

VLCD

VLCD12VESP

VLCD

5.PANEL INTERFACE

A A

Custom28

M15_17AAX
TOP

8814680000-02
6832146800-02

1

Size:

LITE-ON TECHNOLOGY CO.

Date:

DRAWN:

CHECK:

APPRO:

5

4

3

2

DESIGN:

Date:

CHECK:

Date:

APPRO:

Sheet: of

Title:

Date:

DWG.NO:

Date:

PCB. NO:

Date:

5

VDD15V 7

PBY201209T-121Y-S(NC)

Q303

2

MMBT3904

1 3

FB307

PBY201209T-121Y-S(NC)

Q305

2

MMBT3904(NC)

1 3

VCC5V

R309

1K

R313

100K(NC)

VCC5V

C310

0.1uF

FB303

C301
47uF/25V

VCC3V3

VCC5V 3,6,7

R308
10K

C325

0.1uF

R312
100K(NC)

C328

0.1uF(NC)

P301

FB301 PBY201209T-121Y-S

1

D D

JWT-A2001WV2-10

C C

PANELVCC_EN6

B B

PANEL12V_EN6

A A

FB302 PBY201209T-121Y-S

2
3
4
5
6
7
8

VDD15V

9
10

VDD15V

C311

0.1uF

DGND 3,4,5,6,7

NOTE: FOR PANEL POWER SELECTION.

IF 3.3V INSTALL FB303
IF 5V INSTALL FB304

R311

4K7

VCC12V

R315

4K7(NC)

5

4

Q301

MMBT3904

C306

0.1uF

C312
1uF

VCC5V

FB304
PBY201209T-121Y-S(0ohm)

C317
680uF/10V

C327
47uF/25V(NC)

4

VCC5V

R301
100

1 3

R305
2K2

R307
10K(NC)

C318

0.1uF(NC)

C326

0.1uF(NC)

2

R302

4K7

Q302

MMBT3906

I312

AO3401

2 3

I313

AO3401(NC)

2 3

3

C

BE

1

3

D

SG

1

1

R303

2

10K

C307
10nF

R306

1K

C323

0.1uF

C329

0.1uF(NC)

R304

10K

C308

0.1uF

FB306

PBY201209T-121Y-S

FB308

PBY201209T-121Y-S(NC)

3

VLCD

VLCD12V

C324

0.1uF

C330

0.1uF(NC)

BKLT_ADJ 4

BKLT_EN 6

VLCD 5

VLCD12V 5

FB305

PBY201209T-121Y-S(NC)

2

VCC5V VCC2V5

C302
47uF/25V

VCC5V

C313
47uF/25V

VDD15V

C319
47uF/25V(NC)

2

TO-252

I301

23

VOUTVIN

C304

0.1uF(NC)

1

ADJ

AIC1117-25CE

4

TAB

C303
47uF/25V

TO-263

I302

23

VOUTVIN

1

C315

0.1uF(NC)

Note : If input power is +12V install R378.

C320

0.1uF(NC)

LITE-ON TECHNOLOGY CO.

DRAWN:

CHECK:

APPRO:

ADJ

AIC1084-33CM

R378

0(NC)

TO-252

I303

2

ADJ

PJ78M12(NC)

Date:

Date:

Date:

TAB

VOUTVIN

TAB

DESIGN:

CHECK:

APPRO:

4

C314
47uF/25V

31
4

C321
47uF/25V(NC)

Date:

Date:

Date:

1

C305

0.1uF(NC)

VCC3V3

C316

0.1uF(NC)

VCC12V

Sheet: of

Title:

M15_17AAX
POWER

DWG.NO:

8814680000-02

PCB. NO:

6832146800-02

1

C322

0.1uF(NC)

VCC2V5 4

VCC3V3 4

Size:

Custom38

5

4

3

2

1

R317

3

P302

D D

JWT-A2001WV2-14

C C

VGA_CON

14

PC5V

13

SCL_VGA

12

SDA_VGA

11
10

RED+

9

RED-

8

GREEN+

7

GREEN-

6

BLUE+

5

BLUE-

4

HSYNC_IN

3

VSYNC_IN

2
1

VCC5V

1

2

100

D301
MMBD7000

C331

0.1uF

3

D302

MMBD7000

VCC5VVCC5V

1

2

C342

0.1uF

FB313

BK2125HS431 BEAD0805

FB312

BK2125HS431 BEAD0805

D303

MMBD7000

1

C343

0.1uF

D307
MMSZ5232B

PC5V

C347

B B

SCL_VGA
SDA_VGA

D313

D312

D311

MMSZ5232B

MMSZ5232B

1N4148(NC)

1N4148(NC)

0.1uF

R336 100
R337 100

D314

D309

1N4148

VGA_DET 6

R322
75_1%

R323
75_1%

VCC5V

D308
1N4148(NC)

D304

MMBD7000

1

C344

0.1uF

3

D305
MMSZ5232B

R324
75_1%

1N4148(NC)

2

3

2

VCC5V

D310
1N4148

R333
4K7

C349
47pF

R334
4K7

C350
47pF

D315
MMSZ5232B

DDC5V

C348

0.1uF

FB309 SBK160808T-300Y-S

C336
10pF(NC)

FB310 SBK160808T-300Y-S

C337
10pF(NC)

FB311 SBK160808T-300Y-S R320 47

C338
10pF(NC)

D306

R331

R330

2K2

2K2

DDC5V

I304

8

VCC

7

WP

6

SCL

GNDSDA

24C02

A0
A1
A2

DDC_CLK
DDC_DAT

R329 330

R328 330

1
2
3
45

DDC5V

R318 47

R325 100

R319 47

R321 470

R326 100

R327 100

DDC_CLK 6
DDC_DAT 6

1 3

C345
100pF

R332
10K

Q306
MMBT3904

C332 47nF

C339 47nF

C333 47nF

C335 1nF

C340 47nF

C334 47nF

C341 47nF

RIN 4

GNDR 4

GIN 4

SOG 4

GNDG 4

BIN 4

GNDB 4

HSYNC 4

VSYNC 4

C346
100pF

R335

2

4K7

DDC_WP 6

A A

Custom48

LITE-ON TECHNOLOGY CO.

DRAWN:

CHECK:

APPRO:

5

4

3

2

DESIGN:

Date:

Date:

CHECK:

Date:

APPRO:

Sheet: of

Title:

Date:

DWG.NO:

Date:

PCB. NO:

Date:

Size:

M15_17AAX
VGA & DDC INTERFACE

8814680000-02
6832146800-02

1

5

NOTE: IF IS 15" (XGA) PANEL, I305 IS SELECT MST8011B.
NOTE: IF IS 17" (SXGA) PANEL, I305 IS SELECT MST8111B.

D D

RIN

RIN3
GIN3
SOG3

BIN3

ALE6
RDZ6
WRZ6

INT6
AD06
AD36
AD16
AD26

GNDR
GIN
GNDG
SOG
BIN
GNDB
HSYNC
VSYNC

VDVI

R400 4K7(NC)

ALE
RDZ
WRZ
HWRESET
INT
AD0
AD3
AD1
AD2

BKLT_ADJ
VOLUME

R340

390_1%

C368

0.1uF

C371 22pF

14.318MHZ
C375 22pF
C376 0.1uF

X301

GNDR3
GNDG3

GNDB3
HSYNC3
VSYNC3

C C

VPO

R399 4K7

HWRESET6

BKLT_ADJ2

VOLUME7

B B

VAD VPLL VDPLL

55354535111218494

63

RIN0

62

RIN0M

60

GIN0

59

GIN0M

61

SOGIN0

58

BIN0

57

BIN0M

37

HSYNC0

38

VSYNC0

29

DDC1_CLK/GPO8

28

DDC1_DAT/GPO7

40

R+

41

R-

43

G+

44

G-

46

B+

47

B-

49

CK+

50

CK-

52

REXT

66

REFP

67

REFM

6

BUSTYPE

69

ALE/CSZ

71

RDZ/SCL

70

WRZ/SDA

32

HWRESETZ

72

INT

30

AD0/GPO6

31

AD3/GPO5

77

AD1/EINV

78

AD2/OINV

73

PWM0

74

PWM1

33

XIN

34

XOUT

BYPASS
AVSS_LPLL

68

VDVI VDDVPO

65

AVDD

AVDD

AVDD_MPLL

AVSS

AVSS

AVSS

64

4

53

AVDD_DVI

AVDD_DVI

AVDD_PLL

AVSS_PLL

AVSS_DVI

AVSS_MPLL

3956362544210208595115

VDDP

AVSS_DVI

AVSS_DVI

48

VDDP

VDDP

GNDP

VDDP

GNDP

104

114

126188797117

VDDP

VDDP

VDDP

LVB3M/CLKAN

LVBCKP/NC/CLKBP

LVBCKM/NC/CLKBN

LVB1P/NC/BB1P

LVB1M/NC/BB1N

LVB0P/NC/BB2P

LVB0M/NC/BB2N

GNDP

GNDP

GNDP

GNDP

1271986

105

VDDC

VDDC

VDDC

VDDC

LVACKP/NC
LVACKM/NC

LVA2P/RA1P

LVA2M/RA1N

LVA1P/RA2P
LVA1MRA2N
LVA0P/RA3P

LVA0M/RA3N

NC/GA1P
NC/GA1N
NC/GA2P
NC/GA2N

LVA3P/GA3P

LVA3M/GA3N

NC/BA1P
NC/BA1N
NC/BA2P
NC/BA2N
NC/BA3P
NC/BA3N

NC/RB1P
NC/RB1N
NC/RB2P
NC/RB2N
NC/RB3P
NC/RB3N

NC/GB1P
NC/GB1N
NC/GB2P
NC/GB2N
NC/GB3P
NC/GB3N

LVB3P/CLKAP

LVB2P/NC/NC

LVB2M/NC/NC

NC/NC/BB3P
NC/NC/BB3N

NC/ESP

NC/OSP

GPO0
GPO1
GPO2
GPO3
GPO4

GNDP

GNDC

GNDC

96

I305
MST8011B/8111B

PA0

106

PA1

107

PA2

108

PA3

109

PA4

110

PA5

111

PA6

112

PA7

113

PA8

98

PA9

99

PA10

100

PA11

101

PA12

102

PA13

103

PA14

88

PA15

89

PA16

90

PA17

91

PA18

92

PA19

93

PB0

16

PB1

17

PB2

22

PB3

23

PB4

24

PB5

25

PB6

8

PB7

9

PB8

12

PB9

13

PB10

14

PB11

15

PB12

118

PB13

119

PB14

120

PB15

121

PB16

122

PB17

123

PB18

124

PB19

125

PB20

128

PB21

1

PB22

4

PB23

5

75
76

83
82
81
80
79

GNDC

GNDC

MST8111/8031B

116

MST8116/8036B

ESP
OSP

GPO0
GPO1
GPO2
GPO3
GPO4

3

VCC3V3

P[0..7]
PA[8..13]
PA[14..19]

PB[0..5]
PB[6..11]
PB[12..23]

ESP
OSP

GPO[0..4]

VCC3V32

PA[0..7] 5
PA[8..13] 5
PA[14..19] 5

PB[0..5] 5
PB[6..11] 5
PB[12..23] 5

ESP 5
OSP 5

GPO[0..4] 5

FB314

PBY160808T-600Y-S

VCC2V52

VPO

C351
10uF/16V

2

FB315

PBY160808T-600Y-S

VCC3V3

VCC3V3

VCC3V3

C353

C354

0.1uF

0.1uF

VDDVCC2V5

C360
10uF/16V

FB316

PBY160808T-600Y-S

FB317

PBY160808T-600Y-S

FB318

PBY160808T-600Y-S

FB319

PBY160808T-600Y-S

C355

0.1uF

C361

0.1uF

VADVCC3V3

VPLL

VDVI

VDPLL

C365
10uF/16V

C369
10uF/16V

C372
10uF/16V

C377
10uF/16V

C356

0.1uF

C362

0.1uF

C357

0.1uF

C363

0.1uF

C366

0.1uF

C370

0.1uF

C373

0.1uF

C378

0.1uF

C358

0.1uF

C364

0.1uF

C367

0.1uF

C374

0.1uF

C359

0.1uF

1

A A

Custom58

LITE-ON TECHNOLOGY CO.

DRAWN:

CHECK:

APPRO:

5

4

3

2

DESIGN:

Date:

Date:

CHECK:

Date:

APPRO:

Sheet: of

Title:

Date:

DWG.NO:

Date:

PCB. NO:

Date:

Size:

M15_17AAX
SCALER MST8111/6B

8814680000-02
6832146800-02

1

5

4

3

2

1

PA[0..7]

PA[0..7]4

D D

PA[8..13]4

PA[14..19]4

C C

GPO[0..4]4

B B

PA[0..7]

PA[8..13]

PA[14..19]

GPO[0..4]

PA[0..7]4 PB[0..5]4

PA2

RA1P

PA3

RA1N
RA2PPA4

PA5

RA2N

PA6

RA3P

PA7

RA3N

PA8

GA1P
GA1NPA9
GA2PPA10
GA2NPA11

PA12 GA3P

GA3NPA13

PB[12..23]4

BA1PPA14 LVB3M
BA1NPA15
BA2PPA16
BA2NPA17
BA3PPA18
BA3NPA19 LVB1P

PB12

CLKAP

PB13

CLKAN

R344 0(NC)

GPO0

R346 0(NC)

GPO1

R347 0(NC)

GPO2

R348 0(NC)

GPO3

R349 0(NC)

GPO4

C382
10pF(NC)

PB[12..23]

C383
10pF(NC)

C384
10pF(NC)

PA2 LVA2P

PA12 LVA3P
PA13 LVA3M

PB13
PB14
PB15
PB16
PB17
PB18

C385

C386
10pF(NC)

10pF(NC)

LVACKPPA0
LVACKMPA1

LVA2MPA3
LVA1PPA4
LVA1MPA5
LVA0PPA6
LVA0MPA7

LVB3PPB12
LVBCKP

LVBCKM
LVB2P

LVB1MPB19
LVB0PPB20
LVB0MPB21

GPOO0
GPOO1
GPOO2
GPOO3
GPOO4

PB[12..23]4

OSP4

ESP4

VLCD2

VLCD

VLCD12V

VLCD12V2

IVCOM( RSDS FOR LG )

VLCD

C

R357

EB

1K(NC)

C388
47pF(NC)

R359

4K7(NC)

Q307

2

MMBT3904(NC)

1 3

R360
10K(NC)

C387
22uF/16V(NC)

C423

0.1uF(NC)

IVCOM6

IVCOM

PB[0..5]

PB0

RB1P

PB1

RB1N

PB2

RB2P

PB3

RB2N

PB4

RB3P

PB5

RB3N

PB[6..11]

PB[6..11]4

OSP

ESP

PB[12..23]

R342 0(NC)

R345 0(NC)

PB6

GB1P

PB7

GB1N

PB8

GB2P

PB9

GB2N

PB10

GB3P

PB11

GB3N

CLKBP

PB14
PB15 CLKBN

BB1P

PB18
PB19 BB1N
PB20

BB2P

PB21

BB2N
PB22 BB3P
PB23 BB3N

C379
10pF(NC)

C381
10pF(NC)

RA3N
RA3P

RA2N
RA2P

RA1N FB2N
RA1P

GA3P FG0P
GA2N

GA2P FG1P
GA1N

GA1P FG2P
CLKAN

CLKAP FCLKP
BA3N

BA3P
BA2N

BA2P
BA1N FR2N

BA1P FR2PLVB2M

R350 0(NC)
R351 0(NC)
R352 0(NC)
R353 0(NC)
R354 0(NC)
R355 0(NC)
R356 0(NC)

FB0N
FB0P

FB1N
FB1P

FB2P
FG0NGA3N

FG1N

FG2N

FCLKN

FR0N
FR0P

FR1N
FR1P

STH
LPGPOO1
POLGPOO0
HMS

CLKVGP OO3
STVGPOO2
OEGPOO4

AF750X-AXG1T(P-TWO)

FOR RSDS INTERFACE

P303

52
51

50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

RB3N B0N
RB3P

RB2N
RB2P

RB1N
RB1P

GB3N
GB3P

BB1P

VLCD2

LVB3M
LVA3M RXE3-

LVA2M RXE2­LVA1M RXE1­LVA0M RXE0­LVACKP RXEC+

R358

0(NC)

Note: Pin5 and Pin 10 are no pin header

B0P
B1N

B1P
B2N

B2P
BG0N

BG0P
BG1NGB2N

BG1PGB2P
BG2NGB1N

BG2PGB1P
BCLKNCLKBN

BCLKPCLKBP
BR0NBB3N

BR0PBB3P
BR1NBB2N

BR1PBB2P
BR2NBB1N

BR2P

AF730X-AXG1T(P-TWO)

FOR RSDS INTERFACE

VLCD

RXO3-

11 12
13 14
15 16
17 18
19 20
21 22

RXO2+LVB2P

23 24

RXO1+LVB1P

25 26

RXO0+LVB0P

27 28

RXOC+LVBCKP

29 30
31 32

FOR LVDS INTERFACE

P304

32
31

30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

P305

1 2
3 4
5 6
7 8
9 10

CON32 (16X2)

RXO3+LVB3P

LVA3P RXE3+

RXE2+LVA2P
LVA1P RXE1+
LVA0P RXE0+
LVACKMRXEC-

LVB2M

RXO2-

RXO1-LVB1M

RXO0-LVB0M

RXOC-LVBCKM

A A

AU 17
QDI 17
CPT 17

INNOLUX 15
HannStar 15
CPT 15

LG 15

5

4

R351

R350

NC

NC
12V

3.3V
0R

0R

3.3V
NC

3.3V

0R

NC

3.3V
NC0R

3

R354

R355

R353

R352 R356 R358

5V
0R

NC

3.3V
0R NC

3.3V
0R

3.3V
0R

5V

5V
0R

NC

NC

NC

NC

NC

0R

NC
12V

12V

NC

0R

0R

NC

NC0R

NC

12V

NC

0R

NC

NC

NC

NC

NC

NC

NC

0R

LITE-ON TECHNOLOGY CO.

DRAWN:

CHECK:

APPRO:

2

DESIGN:

Date:

Date:

CHECK:

Date:

APPRO:

Date:

Date:

Date:

Sheet: of

Title:

M15_17AAX
PANEL INTERFACE

DWG.NO:

8814680000-02

PCB. NO:

6832146800-02

1

Custom68

Size:

5

4

3

2

1

VCC5V

R365

C393

5

NC

810

4

VCCVSS

VDD3

DA8/HLFHO

DA9/HALFV

43

44

HSYNC

P3.1/TXD
P3.0/RXD

VSYNC

P5.0
P5.1
P5.2
P5.3
P5.4
P5.5
P5.6

P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
DA7
P4.0
P4.1
P4.2

0.1uF

KEY_DOWN
KEY_MENU
KEY_PLUS
KEY_MINUS
AMBER
GREEN
KEY_POWER

C394

DDC_WP
VGA_DET
PANEL12V_EN
PANELVCC_EN
IVCOM
BKLT_EN
AUDIO_EN
MUTE

R391
4K7(NC)

C405

0.1uF

4

R385
4K7(NC)

C406

0.1uF

10uF/16V

12

11

19

14
13
27
26
16

30
31
32
33

I307

7

9

MTV312M64

C407

0.1uF

6

NC

X1

X2
RESET

INT0/P3.2

ISCL/P3.5/T1
ISDA/P3.4/T0
P6.0
P6.1
P6.2
P6.3
P6.4
P6.5
P6.6
P6.7

R403 100
R404 100
R405 100
R406 100
R407 470
R408 470
R409 100

D D

VCC5V

C398

R383

0.1uF
4K7

I308

1
2
3
4 5

C C

B B

A A

A0
A1
A2
GND SDA

24C16

8

VCC

7

WP

6

SCL

PANEL12V_EN2
PANELVCC_EN2

P308

1
2
3
4
5
6
7
8
9

JWT-A2001WV2-09

5

VCC5V

C396
10uF/16V

R381
4K7

D316

R379

1N4148

10K

DDC_WP3

VGA_DET3

IVCOM5

BKLT_EN2

AUDIO_EN7

MUTE7

VCC5V

C401

0.1uF

R382 100
R384 100

R389
4K7

C402

0.1uF

11.059MHZ

INT4

R390
4K7(NC)

C403

0.1uF

C395 22pF

X302

C397 22pF

C404

0.1uF

R366

4K7

4K7

3
2
1
42
41
40
34
39
38

AD0

17

AD1

18
20

AD3 AD3

21

RDZ

22

WRZ

23

ALE

24

HW_RESET

25
35

LED_G

36

LED_A

37
15

28
29

3

R367
4K7

VCC5V

R387
4K7

1 3

MMBT3904

R368
4K7

VCC5V

Q309

R369

R370

R371

4K7

4K7

4K7

VCC5V

KEY_POWER
KEY_MENU
KEY_PLUS
KEY_MINUS
KEY_DOWN

R410 100

R394

R397

R393

4K7

4K7

R398

4K7

4K7

R372
4K7(NC)

C400

0.1uF

R373
4K7

R380 100

R375

R374

4K7

4K7

AD0
AD1
AD2AD2

RDZ
WRZ
ALE
HWRESET

AD0 4
AD1 4
AD2 4
AD3 4
RDZ 4
WRZ 4
ALE 4
HWRESET 4

DDC5V

C399
R388
4K7

0.1uF

VCC5V

JWT-A2001WV2-04(NC)

I309

VCC
OE2
1B

NC7WB3125

1

0E1

2

1A
2A

VSS2B

DDC_DAT 3

3

DDC_CLK 3

45

8
7
6

P307

1
2
3
4

R386
4K7

1 3

MMBT3904

VCC5V

R392

2

Q308

4K7

VCC5V

R376
4K7(NC)

2

R401

4K7
C352
1uF

VCC5V VCC5V

LED_A

2

Q310

1 3

MMBT3904

LITE-ON TECHNOLOGY CO.

DRAWN:

CHECK:

APPRO:

2

R377
4K7(NC)

R402

4K7
C380
1uF

DESIGN:

Date:

Date:

Date:

CHECK:

APPRO:

Date:

Date:

Date:

LED_G

Sheet: of

Title:

M15_17AAX
MCU

DWG.NO:

8814680000-02

PCB. NO:

6832146800-02

1

Custom78

Size:

5

D D

VDD15V2

DGND2,3,4,5,6

C C

VDD15V

P309

1
2
3

JWT-A2001WV2-03

FB320

PBY201209T-300Y-S

FB321

PBY201209T-300Y-S

AUDIO_EN6

AUDIO_IN_R
AUDIO_IN_L

AUDIO_15V

AUDIO IN

ANA-GND

B B

R417 1K
R418 1K

FB322

PBY201209T-300Y-S

4

AUDIO_15V

R411
10K

R412

4K7
R413
10K

Q311

2

MMBT3904

1 3

ANA-GND

R415

4K7

C409

0.1uF

ANA-GND

IN_R

C416 1.0uF/50V

IN_L

C417 1.0uF/50V

R420

R419

47K

47K

S-GND

C410
100uF/25V

S-GND

3

I310
CEM9435A

5

3

6

2

7

1

8

4

L301

45uH DRWW 10 X 10

C411

0.1uF

ANA-GND

ANA-GND

C420

C419

47pF

47pF

C421
100uF/25V

1
9

4

10

313181920715

G3G4G5G6G7

G1
INR

INL
SVR

VOL

6

VAO_R

VAO_L

5

16

Vs

Vs

TDA7496L

OUTRG2

STBY

MUTE

OUTL

I311

142

11
12

17

ANA-GND

C412
470uF/25V

2

VCC5V

VCC5V 2,3,6

R414
100K

R416

10K

C413

0.1uF

C414

0.1uF

1

MUTE 6

ANA-GNDANA-GND

C415

470uF/25V

C418

470uF/25V

SP_R+

SP_L+

P310

1
2
3
4

JWT-A2001WV2-04

ANA-GND

ANA-GND

VOLUME4

R421

62K

R422

220K
R423

180K

C422

0.1uF

ANA-GND

A A

Custom88

LITE-ON TECHNOLOGY CO.

Date:

DRAWN:

CHECK:

APPRO:

5

4

3

2

DESIGN:

Date:

CHECK:

Date:

APPRO:

Sheet: of

Title:

Date:

DWG.NO:

Date:

PCB. NO:

Date:

Size:

M15_17AAX
AUDIO

8814680000-02
6832146800-02

1

Printed in Taiwan