Acer AL506 User manual

ACER Monitor AL506
－Table of Contents －
1. Attention During Servicing ...........................................................................................................................2
2. Monitor Appearance Description of ProLite E380S .....................................................................................3
2-1. Front View .........................................................................................................................................3
2-2. Rear View...........................................................................................................................................4
2-3. System Block Diagram ......................................................................................................................5
2-4. Explosion Diagram ............................................................................................................................6
3. OSD Menu Screen.........................................................................................................................................8
4. Description of Level 1 Service Tools ..........................................................................................................13
5. Troubleshooting Analysis............................................................................................................................14
6.Level1ServiceItems--MonitorAssemblyandDisassembly............................................................................................19
6-1. Remove Stand Bottom .....................................................................................................................20
6-2. Separate Cover (Case Rear Assy) ....................................................................................................20
6-3. Remove FFC ....................................................................................................................................22
6-4. Remove Bezel ..................................................................................................................................22
6-5. Remove lnverter...............................................................................................................................23
6-6. Change New Inverter .......................................................................................................................26
6-7. Remove AD PCBA ..........................................................................................................................29
6-8. Change New AD PCBA...................................................................................................................32
6-9. Change New SW/B (PCB-K)...........................................................................................................35
6-10. Change New SW/B(PCB-K)..........................................................................................................36
6-11. Case Assembly ...............................................................................................................................37
7.FRU ..............................................................................................................................................................41
8. Method for LCD Monitor Testing after Servicing ......................................................................................43
8-1. Test Method Without Connection of Computer...............................................................................43
8-2. Test Method with Connection of Computer.....................................................................................44
8-3. Definition of the Connector Pin of Signal Cable.............................................................................44
8-4. Specification ....................................................................................................................................45
8-5. Factory Mode Function....................................................................................................................47
9.BIOS & OSD Software Update....................................................................................................................48
9-1. Programs: .........................................................................................................................................48
9-2. Tools.................................................................................................................................................48
9-3. Install BIOS Software (Simply way to ROM) & kit: ......................................................................48
9-4. Program Running .............................................................................................................................50
10. Glossary.....................................................................................................................................................54

ACER Monitor AL506
1. Attention During Servicing
1-1. This monitor should be operated from the type of power indicated on the using
label. If you are not sure of the type of power available, consult your dealer or
local power company..
1-2. The LCD shall be placed at low humidity and low dust.
1-3. Place the LCD on firm flat surface carefully. The surface of the LCD monitor is
plastic material and thin glass, drop or sharp impact will cause damage to the
LCD monitor.
1-4. Do not use alcohol or ammonia-based liquid to clean the monitor. If necessary,
clean with a slightly damp cloth. Disconnect the monitor from the power
supply before cleaning.
1-5. Remove the power supply immediately in case of abnormality occurred in the
LCD, especially strange noise of smell
1-6. Turn on power for testing only after complete the assembly of the monitor
include casing and tighten the screw while servicing the monitor to prevent
hazard.

ACER Monitor AL506
2. Monitor Appearance Description
2-1. Front View
Turbo
Menu －/ Contrast
Button (Exit / )
＋/ Brightness
Exit / Volume
Auto : Auto Setup
Power Switch /Power Indicator
Green : Normal
Blue : Power Saving
Orange : Power Off
Speakers
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8

ACER Monitor AL506
2-2. Rear View
DC Power Jack (DC-In)
Stereo Mini Jack (LINE-IN)
D-sub mini 15pin Connector (D-SUB)
Lock hole
10
13
12
11
13
12
11
10

ACER Monitor AL506
2-3. System Block Diagram
Inverter
Audio Amp
A/D
converter
DC-DC converter
LCD controller
-Scaler
-OSD
-T-con
LCD panel
Speaker
Lamp X3
Adapter IN
(+12VDC) Power
OSD Keypad
Audio IN
Analog IN
Speaker

ACER Monitor AL506
2-4. Explosion Diagram
1.BEZEL_W/_SPEAKER_
CIRCLE_ASSY
2.OSD PCBA
3.PANEL ASSY
4.PET_FILM_METAL_
FRAM_REAR
5.SMART PCBA
6.INVERTER
7.FFC AD_OSD
8.PET ISOLUTION FILM
9.METAL COVER SMART
10.REAR_STAND_
W/O_TUNER_ASSY
11.SEAT_ELLIPSE_ASSY
12.SCREW
13. SCREW
14. SCREW
15.STAND-OFF
16.SCREW

ACER Monitor AL506
The Table of Explosion Diagram
NUM. ITEM NAME CHI-MEI P/N
1 BEZEL_W/_SPEAKER_CIRCLE_ASSY 40A1522923
2 OSD PCBA 35A15K0208
3 PANEL ASSY 44A1513026
4 PET_FILM_METAL_FRAM_REAR 7341391001
5 SMART PCBA 35A15S0203
6 INVERTER 2714000001
7 FFC AD_OSD 3241500001
9 METAL COVER SMART 41A1599115
10 REAR_STAND_W/O_TUNER_ASSY 40A1592966
11 SEAT_ELLIPSE_ASSY 40A1592949
12 SCREW 42A9930001
13 SCREW 42A9920002
14 SCREW 42A9930008
15 STAND-OFF 42A9940007
16 SCREW 42A9930009

ACER Monitor AL506
3. OSD Menu Screen
Operate
Explanation
 Press the Menu Button to start the On Screen Display feature. There are additional
Menu pages which can be switched by using the +/–Buttons.
V-Position
50
 Select the Menu page that contains the adjustment icon relating to the adjustment
you want to make. Press the Menu Button again. Then, use the +/– Buttons to
highlight the desired adjustment icon. Press the Menu Button again.
 Use the +/–Buttons to make the appropriate adjustment or setting.
 For example, to correct for vertical position, select Menu page number 1 and then
press the Menu Button. Then, select (V-Position) by using the +/– Buttons.
 An adjustment scale appears after you press the Menu Button. Use the +/– Buttons
to change the vertical position settings. The vertical position of the overall display
should be changing accordingly while you are doing this.
Page no.
Current horizontal frequency,
vertical refresh rate and
resolution
A
djustment icon
Displayed while Mute is active
Dis
p
la
y
ed while Turbo is active
The bar shows the progress of the
adjustment being made

ACER Monitor AL506
Notes  The On Screen Display disappears several seconds after you stop pressing the
buttons while performing an adjustment.
 Any changes are automatically saved in the memory when the On Screen Display
disappears. Turning off the power should be avoided while using the Menu.
 Adjustments for Clock, Phase and Position are saved for each signal timing. Except
for these adjustments, all other adjustments have only one setting which applies to
all signal timings.
Adjust
Menu contents
Pressing [＋] , [－] or [Menu] buttons for the adjustment when the OSD is executed.
Menu: 1
*1 Adjust the Brightness when you are using the monitor in a dark room and feel the
screen is too bright.
Note: SWITCHING BRIGHTNESS /CONTRAST ADJUSTMENT:
To switch between Brightness and Contrast adjustments, press the Menu Button within 10
seconds after pressing the Brightness Button or the Contrast Button during the direct
adjustments above.
Return to Menu
Clock
Bri
g
htness*1
(
Direct
)
Contrast (Direct)
Phase
H-Position V-Position

ACER Monitor AL506
Menu: 2
*1 For best results, use the Auto Set-up in conjunction with the adjustment pattern. And
the screen becomes dark for approximately five seconds during the adjustment.
Note:
 Auto Set-up Setting:
 No: The Auto Set-up is not performed when the signal input is changed.
 Yes: Adjust Clock and Phase automatically when the signal input is changed.
 Color Temp.: Color 1: 9300K; Color 2: 7500K; Color 3: 6500K; sRGB: User
 sRGB is an international standard which defines and unifies the difference of
color appearance between equipment.
 Sharpness: Adjust the picture quality at resolutions of less than 1024 × 768. You
can change the picture quality from 1 to 5 (sharp to soft). Press the + Button to
change the picture quality in numerical order. Press the – Button to change the
picture quality in reverse numerical order.
Sharpness
A
uto Set-u
p
*1
(
Direct
)
Color Temp.
Return to Menu

ACER Monitor AL506
Menu: 3
Note:
 OSD Position: You can move the OSD display area to any one of the following
5 positions within the overall display:
Press the + Button to move the OSD in numerical order. Press the – Button to move
the OSD in reverse numerical order.
 Language: Eng: English; Dth: German; Fns: French; Ity: Italian; Epl: Spanish;
Jpn: Japanese; T-C: Tranditional Chinese; S-C: Simplified Chines
Return to Menu
Language
Volume
(
Direct
)
OSD Position
Reset
3
1
5
4
2

ACER Monitor AL506
Direct You can skip the Menu pages and display an adjustment scale directly by using the
following button operations:
 Brightness: Press the Brightness Button when the Menu is not displayed.
 Contrast: Press the Contrast Button when the Menu is not displayed.
 Auto Set-up: Press the Auto Button when the Menu is not displayed.
 Volume: Press the Volume Button when the Menu is not displayed. When OSD
menu is off, holding this button for 1-2 seconds will switch the Mute function
between ON and OFF.
 Turbo:
 Pct: Picture Mode (High brightness)
 Text: Text Mode (Normal)
 Eco Economy (Brightness of back-light is reduced)
 Changing to a lower brightness mode can lessen eye fatigue.
 Change from Picture Mode to Text Mode when working with text.
 Change from Text Mode to Economy Modes when viewing the screen for long
periods.

ACER Monitor AL506
4. Description of Level 1 Service Tools
Definition : Replacement of failed PCB and internal signal wire.
Tools :
1. Multimeter.
2. Electric screwdriver.
3. Screwdrivers
Testing equipment : PC
Electric screwdriver
Torque value: adjust to 1.5kgf*cm
Multimeter
Computer for testing :
Screwdriver
Hexagon Wrench

ACER Monitor AL506
5. Troubleshooting Analysis
Defect Mode Failure Analysis Repair Testing
AD/B Change
Panel Change
Inverter Change
Missing Line
Bright Dot
Dark Dot
Backlight
Check PCB
Check Panel
Light Leakage
Mura
Image Sticking
Brightness spot
Particle
Dot Defect
Check Panel
N
o display Check PCB
Check Panel
N
oise Check PCB
Check Panel
Light On Test
Next Ste
p
※ “ Panel Change” Should be Performed to Level 3 Repair stage
Panel Change
AD/B Change
Panel Change
AD/B Change
Panel Change
Abnormal
Display
TEST
NG
A Completed

ACER Monitor AL506
Defect Mode Failure Analysis Repair Testing
Power on
Display
abnormal
Check PCB
Check Panel
Gray value
display
R.G.B display
abnormal
Check PCB
Display Shut
Down
Check PCB
Check Panel
N
o si
g
nal Check PCB
Check PCB
Flicker Check PCB
Check OSD
※ “ Panel Change” Should be Performed to Level 3 Repair stage
Next Ste
p
AD/B Change
Inverter Change
Adjust VCOM
AD/B Change
Panel Change
AD/B Change
AD/B Change
AD/B Change
AD/B Change
Inverter Change
Panel Change
TEST
NG
A
Completed
A

ACER Monitor AL506
Defect Mode Failure Analysis Repair Testing
LED Off
Check PCB
Check Wire
N
o Powe
r
Check PCB
Check Wire FFC Change
Next Ste
p
※ “ Panel Change” Should be Performed to Level 3 Repair stage
Unavailable Check PCB
Check Wire
LED Dark
LED Abnormal
LED Flicke
r
AD/B Change
AD/B Change
AD/B Change
SW/B Change
FFC Change
FFC Change
ON/OF
Abnormal
LED display
abnormal
Abnormal
Keyboard
TEST
NG
Completed
SW/B Change
SW/B Change

ACER Monitor AL506
Defect Mode Failure Analysis Repair Testing
Can’t In
p
u
t
Check PCB
Can’t Read
Display Shut
Down
Check PCB
Check Panel
Display flicker
(tapping )
Check PCB
Check Panel
Next Ste
p
※ “ Panel Change” Should be Performed at Level 3 Repair stage
AD/B Change
AD/B Change
AD/B Change
Panel Change
Abnormal BIOS
&OSD
Other Abnormal
Display
TEST
NG
Completed
Inverter Change
Inverter Change

ACER Monitor AL506
Defect Mode Failure Analysis Repair Testing
※ “ Panel Change” Should be Performed at Level 3 Repair stage
Audio
Abnormal Sound adjust
abnormal Check PCB AD/B change
No sound Check speaker
Check FFC
Check PCB
Speaker change
FFC change
AD/B changeSingle sound
SW/B change
TEST
Completed

ACER Monitor AL506
6. Level 1 Service Items--Monitor Assembly and Disassembly
The flow of Monitor assembly and disassembly procedure as below :
Se
p
arate Stand
Se
p
arate Cove
r
Remove Inverte
r
1
2
3
Chan
g
e Inverte
r
Remove AD PCBA
Chan
g
e AD PCBA
Cover Assembl
y
Stand Assembl
y
4
5
6
7
8
※ Must to protect the Polarizar Scratch
※ Must to protect ESD issue

ACER Monitor AL506
6-1. Remove Stand Bottom
6-2. Separate Cover (Case Rear Assy)
Step 1 －Press the hooks and
remove the Seat
Step 2 －Completed
Step 1 －Rotate the Stand Hinge and
lay it down