Acer AL1731 Support Question
Acer AL1731 Support Question
Find answers below for this question about Acer AL1731.Need a Acer AL1731 manual? We have 2 online manuals for this item!
Question posted by 09rrodriguez on June 14th, 2012
I Get No Sound Out Of Monitor Speakers
my built in speakers are not working. the monitor is an ACER AL1731
can you help me turn them on to get sound.
Current Answers
Related Acer AL1731 Manual Pages
AL1731 Service Guide - Page 1
for more information,
please refer to http://csd.acer.com.tw Monitor AL1731
Service Guide
Service guide files and updates are available on the AIPG/CSD web;
AL1731 Service Guide - Page 2
... (IEC 61000-4-5 Surge 43 8.1 Climatic Condition ...43 8.2 Test Conditions:...43 8.3 The surge will be performed under the following conditions, unless otherwise specified 4 2.2 LCD monitor General specification ...4 2.3 LCD Panel Specification ...5 2.4 Input Signals...11 2.5 CONTROLS ...15 2.6 White Color Temperature...19 2.7 POWER SUPPLY ...20 2.8 Plug & Play (EDID) ...22 2.9 Audio Technical...
AL1731 Service Guide - Page 4
... LCD technology to provide a performance oriented product with volume control to general 15 pin D-sub VGA connector and DVI-D digital connector, eliminates the requirement of speakers. It also supports VESA DPMS power management and plug & play function. 1. Monitor also can be directly connected to drive a pair of optional special display card.
AL1731 Service Guide - Page 5
... = 1 nano tesla 1 tesla = 10,000 gauss
cm = in front of LCD panel
30 minutes 5 seconds Chroma 2250 signal generator or equivalent, directly Connected to the monitor under the following conditions, unless otherwise specified. Hydis HT17E12-200
Display size : 337.92mm(H) x 270.34mm(V)
Display mode :
VGA 720 X 400 (70 Hz)
VGA 640...
AL1731 Service Guide - Page 12
... supported timing the display optimization will not be assured.
• Horizontal Frequency 30KHz --80KHz(analog), 31.5- 64KHz(digital)
• Vertical Frequency
56Hz ---------75Hz
DISPLAY MODES
MONITOR MODE NO.
1 2 3 4 5 6 7 8 9 10 11 12
SCREEN RESOLUTION
640X480 640X480 640X480 720X400 800X600 800X600 800X600 1024X768 1024X768 1024X768 1280X1024 1280X1024
HORIZONTAL SYNC RATE (kHz) 31...
AL1731 Service Guide - Page 13
...above mode and other video modes within the supported frequency range (Horizontal: 80KHz,Vertical: 75Hz), this monitor will be optimized.
VESA-480-72Hz 72.809
-
640x480
37.5
- VGA-400-TEXT 70.087....476
- If the input timing over the supported frequency range, a message "Input Signal Out of the monitor. VGA-480
59.94
-
640x480
37.861
-
VESA-768-70Hz 70.069
-
1024x768
60.023
+...
AL1731 Service Guide - Page 14
Monitor should display 85Hz refresh rate mode as emergency mode. Pin assignment for D-sub connector
PIN
Separate Sync
NO.
1
RED VIDEO
2
GREEN VIDEO... at this mode.
2.4.6 Analog Video input Connector
Analog Video input Connector: 15pins mini D-Sub
Table 2.4.5. 2.4.5 85Hz refresh rate Support Monitor should display "Out of plastic parts: Blue
5
1
10
6
15
11
D-sub connector
13
AL1731 Service Guide - Page 15
... side 4 Pin Mini-DIN female. Composite Video: Monitor rear side RCA female (Yellow). Pin assignment for S-Video female (Black)
Composite/S-VIDEO INPUTS
S-Video
Type
Y/C
Level
0.7Vpp
14
: NTSC/PAL Digital Video ... No Connect
16 Hot plug detect
24 TXC-
*) In case, the power of the PC unit is switched off and the power of the monitor is switched on, no voltage may occur at pin 14.
AL1731 Service Guide - Page 16
...is ON. 3. You can Press the left or right control button can adjusting speaker
Volume control. 2. When press after Menu buttons then Press either left button to ...terminated
: NTSC/PAL
2.5 CONTROLS
A brief description and the location of all LCD Monitor functions controls and indicators:
1 Stereo Speakers
2
Soft Power Switch (DC Power-On
Indicator)
3 Auto
4
Function Select and...
AL1731 Service Guide - Page 17
... mute the sound.
Brightness Adjust the overall image and background screen brightness. ATTR
This features adjusts < to decrease right speaker volume and > to increase right speaker volume. Options
OSD
To move the picture image horizontally left speaker volume. User green Increase or decrease green.
Exit
To exit the main menu.
2.5.1 Adjusting the Monitor's Display
The...
AL1731 Service Guide - Page 18
...depending upon which is yellowish and closer to mute the sound. This features choose on or off to shut off to... volume and > to increase left speaker volume and > to increase volume. This features adjusts < to decrease left speaker volume.
This features adjusts < to...opaque or translucent to increase right speaker volume. To exit the main menu. Increase or decrease blue.
...
AL1731 Service Guide - Page 19
...VESA DPMS Functionality When signaled by first in first out motion. You can select how long the monitor waits after the last adjust of the key to shut off to 60 seconds. Other features:
...0 to the factory setting. You can choose one of OSD. If other support modes input to monitor EEPROM will remember this mode and switch to save NVRAM memory. Current mode vertical frequency±1Hz. ...
AL1731 Service Guide - Page 21
2.7 POWER SUPPLY
(PK10V000020, LAE LAD6019AB5 BLK 90D)
(PK10V000030, LAE LAD6019AB5 IVO 90D)
( PK10V000040, LSE0218B1260 BLK 90D)
(PK10V000050, LSE0218B1260 IVO 90D)
2.7.1 input Voltage Range
The monitor shall operate within specification over the range of 90 to 265 VAC power supply.
2.7.2 Input Frequency Range
Input power frequency range shall be from 47.5 ...
AL1731 Service Guide - Page 23
Connector type: ACES 87210-0236 P3.5 or alternative
Pin No. 1 2
Symbol HV LV
Descripition High Voltage Low Voltage
2.8 Plug & Play (EDID)
The monitor will be capable of sending a VESA standardized EDID file through the DDC (pins 12, 15 of the VGA connector).
22
AL1731 Service Guide - Page 24
... Noise ratio Total harmonic distortion Cross talk Output Watt. 2.9 Audio Technical specification
2.9.1 General Description: Output power
: 1Wrms + 1Wrms maximum
Total harmonic distortion : Less than 1 % (except speakers distortion)
Input signal sensitivity
: 0.5 Vrms for full output
Input impedance
: 47 Kohm +/- 5 %
Frequency response range : 20Hz - 20kHz (except...
AL1731 Service Guide - Page 25
... to directly convert the analog RGB signals from standard VGA display card to optimum LCD timing signals so as to construct a high display quality LCD monitor.
3.2 Features • On board embedded micro-processor to detect display timings and control user
functions.
• Using PixelWorks PW131 design to generate optimum LCD timings...
AL1731 Service Guide - Page 30
...5 6 7 8 9
Signal LED-Y LED-G GND KEY-POWER KEY-AUTO KEY-MENU KEY-UP KEY-DOWN
Comment Power saving mode Monitor is ON GND Power ON/OFF key Auto Adjusting and Channel Selection Function Selection enable Function select and Adjust UP Function select and Adjust ... 24 TXC+
*)In case, the power of the PC unit is switched off and the power the monitor is switched on, no voltage may occur at pin 14.
29
AL1731 Service Guide - Page 31
...LED-G GND KEY-POWER KEY-AUTO KEY-MENU KEY-UP KEY-DOWN
Comment Power saving mode Monitor is designed to offer a user interfaced control panel which passes and receives signals to and ...LED
4.4 Connector pin Assignment
4.4.1 J1 Pin NO. 1 2 3 4 5
Signal L+ LGND R+ R- Maker E&T E&T ACER ACER LED
Number of pins 5 8 2 2 3
Comment Audio Left + Channel Output Audio Left - 4. Channel Output Audio ...
AL1731 Service Guide - Page 38
... Shock
All testing shall be done in each of the three axes. Sinusoidal Vibration: 0.75 G zero-to-peak, 10 to 10Hz, along each axis, for monitor product
Product Weight
height Specs
This requires one shock in each direction in each of 6 shock inputs. 6.
AL1731 Service Guide - Page 42
... of wave-shape generated by different generator, so the test must uses a scope with at least 400 MHz bandwidth, and coupled to 50 Ω to monitor the rise-time, impulse, duration, and repetition rate of the impulse : 5 KHz. 7.4 Rise-Time : 5ns ± 30% 7.5 Impulse Duration: 50 nS ± 30%
7.6 Relation to...
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