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Acer

Service Manual

Service Manual
LCD Monitor Acer AL1917W

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Service Manual Versions and Revision
No. 1 Version 1.0 Release Date 2006/07/20 Revision Initial Release

Copyright Copyright 2006 InnoLux Tech. Corp. Ltd 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 InnoLux Tech. Corp. Ltd. Acer AL1917W Service Manual

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Service Manual

Table of Contents
CHAPTER 1- PRECAUTIONS & SAFETY NOTICES ..................................................................................................................... 3 1. SAFETY PRECAUTIONS ............................................................................................................................................................ 3 2. PRODUCT SAFETY NOTICE ...................................................................................................................................................... 3 3. SERVICE NOTES.......................................................................................................................................................................... 3 CHAPTER 2- SERVICE TOOLS & EQUIPMENT REQUIRED ..................................................................................................... 4 CHAPTER 3- CIRCUIT THEORY ...................................................................................................................................................... 5 2. INTERFACE BOARD DIAGRAM ................................................................................................................................................... 5 3. ELECTRONIC CIRCUIT THEORY.......................................................................................................................................................... 6 CHAPTER 4- DISASSEMBLY & ASSEMBLY ................................................................................................................................... 9 1. EXPLODED DIAGRAM ........................................................................................................................................................................ 9 2. DISASSEMBLY BLOCK ..................................................................................................................................................................... 10 3. ASSEMBLY BLOCK ........................................................................................................................................................................... 11 CHAPTER 5- TEST AND ADJUSTMENT ........................................................................................................................................ 12 1. 1.1 1.2 1.3 1.4 1.5 1.6 1.7 2. 2.1 3. 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4. 4.1 4.2 5. 5.1 5.2 5.3 5.4 GENERAL POINTS ............................................................................................................................................................... 12 TEST EQUIPMENT OR TOOL ................................................................................................................................................ 12 PRESET TEST PATTERN ....................................................................................................................................................... 12 AC INPUT ............................................................................................................................................................................. 12 OBSERVATION DISTANCE .................................................................................................................................................... 12 KEY FUNCTION DESCRIPTION ............................................................................................................................................ 12 BURN-IN (AGING) PATTERN ................................................................................................................................................ 13 WARM UP............................................................................................................................................................................. 13 INPUT SIGNAL...................................................................................................................................................................... 13 VIDEO SIGNAL INPUT .......................................................................................................................................................... 13 FUNCTION CHECK ............................................................................................................................................................. 15 OSD FUNCTION TEST ......................................................................................................................................................... 15 SCREEN PICTURE CHECK ................................................................................................................................................... 15 AUTO COLOR BALANCE ...................................................................................................................................................... 15 TIMING CHECK ................................................................................................................................................................... 15 POWER CONSUMPTION FUNCTION TEST............................................................................................................................ 15 VGA CABLE DETECT TEST................................................................................................................................................. 16 HI-POT TEST ........................................................................................................................................................................ 16 GROUNDING TEST ............................................................................................................................................................... 16 BUMPING TEST .................................................................................................................................................................... 16 DISPLAY CHECK.................................................................................................................................................................. 16 PANEL FLICKER CHECK ...................................................................................................................................................... 16 PANEL DEFECT INSPECTION ............................................................................................................................................... 16 PICTURE CHECK................................................................................................................................................................. 17 CHECK BRIGHTNESS UNIFORMITY...................................................................................................................................... 17 COLOR TEMPERATURE CHECK .......................................................................................................................................... 18 BRIGHTNESS OUT (VIDEO SIGNAL INPUT 700MV ± 2%).................................................................................................... 19 DDC DATA CHECK .............................................................................................................................................................. 19

CHAPTER 6- TROUBLE SHOOTING.............................................................................................................................................. 20 1. NO POWER & LED OFF ................................................................................................................................................................... 20 ATTACHMENT 1- BILL OF MATERIAL......................................................................................................................................... 27 PCBA P+I .............................................................................................................................................................................................. 27 ATTACHMENT 2- SCHEMATIC....................................................................................................................................................... 33 ATTACHMENT 3- PCB LAYOUT ..................................................................................................................................................... 41

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Chapter 1- PRECAUTIONS & SAFETY NOTICES
1. SAFETY PRECAUTIONS
This monitor is manufactured and tested on a ground principle that a user's safety comes first. However, improper used or installation may cause damage to the monitor as well as to the user. WARNINGS: This monitor should be operated only at the correct power sources indicated on the label on the rear of the monitor. If you're unsure of the power supply in you residence, consult your local dealer or Power Company. Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. This monitor should only be repaired by a qualified technician. Do not remove the monitor cabinet. There are high-voltage parts inside that may cause electric shock to human bodies. Stop using the monitor if the cabinet is damaged. Have it checked by a service technician. Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable immediately and consult your closed dealer. Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply non-ammonia based cleaner onto the cloth, not directly onto the class screen. Do not place heavy objects on the monitor or power cord.

2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of substitute replacement parts, which do not have the same safety characteristics as specified in the parts list, may create shock, fire, or other hazards.

3. SERVICE NOTES
When replacing parts or circuit boards, clamp the lead wires around terminals before soldering. Keep wires away from high voltage, high temperature components and sharp edges. Keep wires in their original position so as to reduce interference. Adjustment of this product please refers to the user' manual.

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1. 2. 3. 4. 5. 6. SIGNAL GENERATOR MULTIMETER SCREW DRIVER OSCILLOSCOPE Soldering IRON SOLDER

Service Manual

Chapter 2- SERVICE TOOLS & EQUIPMENT REQUIRED

7. VGA Cable (15pins point to point) 8. DVI Cable(DVI-D 24+1 pin) 9. Color Analyzer 10. Mstar ISP Board 11. EDID Board 12. EDID program file

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Chapter 3- CIRCUIT THEORY
1. Monitor Block Diagram
The LCD Monitor contains an interface board, and inverter/power/Audio board, keypad board and flat panel. In Inverter/power/Audio board, power section supplies +14V & +5V for Inverter/Audio and Interface board used. The inverter section drives the backlight of panel and the DC-DC conversion. The Audio section drives speaker (2 x1W).

Flat panel (LVDS interface) and CCFL

Inverter/Power (Including AC/DC Power Supply , Inverter )

Interface Board

Keypad BD

AC input Range 100V~240V Audio input

Host computer (VGA/DVI signal input and DDC)

2. Interface BOARD DIAGRAM

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3. Electronic Circuit Theory
3.1 Switching Mode Power Supply 3.1.1 AC Current Input Circuit P801 is a connector for connecting AC Power. F801 is a fuse to protect all the circuit. AC input voltage is from 90v to 264V. R801 and R802 joined between two inputting main circuit to prevent man from shock. L801 is used to clear up low frequency wave. C801 and C802 are used to discharge the waves that L801 produced. High frequency waves are damped by C801 and C802. D801 is a rectifier which composed of 4 build-in diodes, it inverts AC to DC. 3.1.2 High Voltage to Low Voltage Control Circuit C804 is used to smooth the wave from rectifier. IC802 is a highly integrated PWM controller. When rectified DC high voltage is applied to the HV pin during start-up, the MOSFET Q804 is initially off, and the Vcc pin capacitor is charged. When the Vcc pin voltage reaches approximately 10V, the control circuitry is activated and the soft-start begins. The soft-start circuit gradually increases the duty cycle of the MOSFET from zero to the maximum value over approximately 4ms. If no external feedback/supply current is fed into the FB pin by the end of the soft-start, the current Setpoint will be above the fault level, FAULT flag is raised, if the FAULT duration exceeds 80ms, the output controller disable Resistor R808, R809, R810, R811 are for line over voltage shutdown(OVP) When PWM is turned off, the main current flow will be consumed through R804 and D802, This will prevent MOSFET Q804 from being damaged under large current impulse and voltage spike. D803 and C807 to provide internal Auxiliary voltage to Vcc pin during normal operation. Otherwise, error amplifier and feedback current input the FB pin for duty cycle control. 3.1.3 DC_5V and DC_14V Output Circuit For DC 5V, D805 is used to rectify the inducted current. R828 and C814 are used to store energy when current is reversed. The parts including C818, C822, C820,L803 are used to smooth the current waves. For DC 14V, D803 is used to rectify the inducted current. R827 and C813 are used to store energy when current is reversed. The parts including C815, C817 and L802 are used to smooth the current waves. 3.1.4 Feedback and OVP Protect Circuit Pin R of IC803 is supplied 2.5-v stable voltage. It connects to 5V and 14V output through R822, R823 and R824. R822, R823 and R824 are output sampling resistor. When the sampling voltage more than 2.5V or less than 2.5V, current of FB IC802 will change, this can change the voltage from T801. OVP Protect Circuit: When output is overvoltage, the auxiliary winding voltage will be increased, when it reaches about 14V. Q803 is triggered . It makes the IC802 Pin 1 exceed 5V, then the IC802 output will be disabled. Q801, R816, R817 and ZD803 make up of dummy loading circuit. For start-up sequence, during 5V output take place high loading first, this dummy loading circuit operated to insure 14V not be increased. 3.2 I/F Board Circuit 3.2.1 RGB CAPTURE - Signal RED,GREEN,BLUE input through CN103 #1,#2,#3, Stop DC via C112, C114 and C116, and then enter into U105 (scaler) analog input terminal #18,#20,#23, and then scaler deals with signal internally. TVS101, TVS102, TVS103 are ESD protector to prevent U105 from ESD. - Signal DDC_SCL (series clock) inputs via CN103#15, and then passes through ZD101 Zener for ESD protection, goes into U105 #31. - Signal DDC_SDA (series data) inputs via CN103#12, and then passes through ZD107 Zener for ESD protection, goes into U105 #30. - Signal TTL vertical sync. (Vsync) inputs via CN103 #14, and then clamped by ZD105 Zener, passes through R129, and then goes into IC U105 (scaler) #28.
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- Signal TTL horizontal sync. (Hsync) inputs via CN103 #13, and then clamped byZD106 Zener, passes through FB101,R130, and then goes into IC U105 (scaler) #27. - CN103#5 is defined as cable detect pin, this detector realize passes through R122 Pull hight, go into U105#35. - U103 power is supplied by PC via CN103#9, or supplied by Monitor self via D103. - U103 is an EEPROM IC which is memory and EDID data saved in it. 3.2.2 Buttons Control - Button "Power" on right side bezel connects to U105 (scaler) #88 through R161, via CN105#4. - Button "UP" "DOWN ""MENU" "AUTO" on right side bezel connects to U105 (scaler) #89,#88,#89,#88 through R158,R159,R160,R157,via CN105 #6, #5. - U108 is an EEPROM IC which memory OSD setting and save the value adjusted by user. - LED Indicator on Front Bezel a. When press button "power", U105 (scaler) #42 sends out a low potential, via R101, flow to CN105 #2 on keypad, LED Green ON. b. When in "Suspend" mode, U105 (TSUM56AL) #41 sends out a low potential, via R107, flows to CN105 #1 on keypad, LED Amber ON. 3.2.3 Mstar CHIP U105 (scaler) - U105 (TSUM56AL-1& TSUM16AL-1) #54. #55. #58~#65 output 8 bit even LVDS digital data to panel control circuit through CN104. - U105 (TSUM56AL) #67~#74. #77. #78 output 8 bit odd LVDS digital data to panel control circuit through CN104. - U105 (TSUM56AL-1& TSUM16AL-1) #86 outputs Brightness "PWM" signals to control CCFL brightness. - U105 (TSUM56AL-1& TSUM16AL-1) #48 output PPWR "H" potential to make Q103 conducted, and then make Q101 conducted, +5V flow to CN104#1~#3 as Panel VDD . - U105 (TSUM56AL-1& TSUM16AL-1) #85 output CCFL_ON/OFF "H" potential to control Inverter on/off. - TCLK by Crystal 14.318MHz input to U105 (TSUM56AL-1& TSUM16AL-1) #96,#97. Please refer to TSUM56AL Pin Assignments table in page 3.2.4 Regulator Circuit - +5V is from switching mode power supply for Panel used. - +3.3V generates from +5V through C101 and C103 filtering and U101 which is output +3.3V LDO for U103, U106,U108 and U105 used. - +1.8V generates from +5V through C101 and C103 filtering and U102 which is output +1.8V LDO, for U105 used. 3.2.5 Audio circuit - Audio Signal R,L,GND input through P701,#2,#5,#1, Stop DC via C711, C712, and then enter into U701 (TDA7496L) analog input terminal #4,#9. - U701 (TDA7496L) #14,#17 output R,L audio data to Speaker through CN701. - U105 (TSUM56AL) #94 output MUTE "H" potential to control U701on/off. - U105 (TSUM56AL) #93 outputs Volume "PWM" signals to control U701 Volume.

4. Inverter circuit
1. R503, ZD501, R502, Q501 components convert +14V voltage into +5.0V voltage, and the voltage supply to IC501. The extra PWM pulse signal (BRIGHTNESS signal) input to control IC through R512, R514, C510, The LCT pin is set to a DC voltage of 0.7V by using a resistor divider(R507, R516), change the duty of PWM pulse, will regulate the lamp current. The ON/OFF voltage connect to pin10 of IC501 through D501, R501, A voltage of 2V to pin10 of IC501 enables the IC and activates the striking timer. The SSTCMP pin of IC501 performs the soft function, the C511 set the time of SST. The operation frequency determined by external capacitor C512, C521 and resistor R508 connected at CT pin of IC501. C515 connect the TIMER pin of IC501, the capacitor to set striking time and shunt down delay time. DRV!, DRV2 output
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for power MOSFET U501, U502. 2. OZ9938 provides two drive signals for U501, U502, and they work in push pull topology driving, two transformers are connected in parallel with each transformer driving two lamps in series. Turning each N-Channel MOSFET "on/off" complementarily, produces an alternating current through the transformer primary and secondary. The "on" duration of the switches determines the amount of energy delivered to the CCFLs. R504, C504, R505, C505, R532, C529, R530, C522 are snubber networks, they suppress Voltage transient spike in drain of power MOSFET. 3. R506, R510, C509, C513, C514, R525, R531, C528, C525, and C527 are connected between high voltage output connector and ground, the divided AC voltage is inverted DC voltage through D502, D503, D508, and D509. The sense voltage feed back to VSEN (pin 6 of IC501) for an over voltage/over current condition during normal operation. R528, R533 are current sense resistor, current sense signal feed back to Isense (pin 5 of IC501) for lamp "ON" detection.

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Chapter 4- Disassembly & Assembly
1. Exploded Diagram

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Service Manual

AL1917W LCD Monitor

BRACKET FINGER *1 HINGE *1 STAND*1

ASSY, BASE BASE*1 RUBBER FOOT *4 GASKET*1 PLATE,BASE*1 T4*6,Zn, ROHS *2 HINGE COVER*1

SCREW,B,CROSS,W/W-SPR,M4*20,Zn ROHS *3

ASSY STAND M4*8,Black Zn,NL ROHS *4

ASSY FRONT BEZEL

FRONT BEZEL *1 FUNCTION KEY *1 POWER BUTTON *1

LED LENS
BACK COVER SCREW, P, T3*8,Zn,ROHS*1 CHASSIS *1 PCBA I/F BOARD *1 PCBA INV.&DC-DC *1 KEY PAD*1 HRN ASS'Y 8P CABLE 30P FFC SPEAKER*1 BOLT,#4-40x11.8,Ni ROHS *2(W/O DVI )or 4(W/DVI) M3*5, Ni ROHS *4, P, W-SPR ,M3*6,Zn,ROHS*1 MYLAR *4

ASSY PANEL UNIT M3*4, Zn,ROHS *4 TAPE,MYLAR*1

PANEL INNOLUX M190A1-L01

Note:
The DIS-assembly direction please following direction of arrowhead

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Service Manual

PCBA Power *1 SCREW PW,CROSS,W/WAS, M3*5,NI*3 SCREW,P,CROSSW/W-SPR,M3*6,Zn,ROHS*1 SPEAKER*1

PCBA I/F BOARD *1 CABLE 30 PIN FFC SCREW,PW,CROSS,W/WAS, M3*5,NI*1 BOLT,#4-40x11.8,Ni ROHS *2(W/O DVI )or 4(W/DVI)

PANEL INNOLUX M190A1-L01 ASSY PANEL*1 SCREW,P,CROSS,W/WAS, M3*4,Zn*4 TAPE,MYLAR*1

CHASSIS *1 MYLAR*4

KEY PAD*1 HRN ASS'Y 8P*1 KEY PAD*1 HRN ASS'Y 8P*1

ASSY BEZEL*1

BEZEL*1 BUTTON,POWER KEY*1 BUTTON,FUNCTION*1 LENS*1

STAND*1 HINGE*1 BRACKET FINGER*1 SCREW,B,CROSS,W/W-SPR,M4* 20,Zn ROHS *3

ASSY STAND*1
M4*8,Black Zn,NL ROHS *4

HINGE COVER*1

BASE*1 RUBBER*4 GASKET*1 PLATE,BASE*1 T4*6,Zn, ROHS *2

ASSY BASE*1

LE 1954 LCD Monitor

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Chapter 5- TEST AND ADJUSTMENT
1. GENERAL POINTS
1.1 Test Equipment or Tool 1.1.1 1.1.2 1.1.3 1.1.4 1.1.5 1.1.6 1.1.7 1.1.8 1.2 Test pattern generator: PC or video pattern generator (Chroma-2326/2160/2130) Color analyzer: Chroma-7120 Power meter: AC Source Chroma-6408 Electrical safety tester: Chroma (Zentech) 9032A Stereo source: Music or signal generator input Auto shock fixture Temperature and humidity sensor DDC interface card and EDID file

Preset Test Pattern 1.2.1 1.2.2 1.2.3 1.2.4 Crosshatch (General-1) Gray Bar (16 & 32 levels) Full White Aging (Burn-in) Pattern: Full Red, Green, Blue, White, and Black

1.3

AC input All measurements mentioned hereafter are carried out at a normal mains voltage (90 - 264 VAC for the model with full range power supply, unless otherwise stated)

1.4

Observation Distance 1.4.1 Observation distance from eyes to panel is defined as 50cm 1.4.2 Visual distance from instrument to panel is defined as 20cm

1.5

Key Function Description 1.5.1 Control buttons on the front bezel CONTROL KEYS FUNCTION KEY A. When OSD un-displays, press [AUTO] to perform auto-adjustment [AUTO] B. When OSD displays, press [AUTO] to return to previous level menu A. When OSD isn't shown on screen, press [MENU] to enter OSD interface [MENU] B. When OSD displays, press [MENU] to perform function of menu icon that is highlight or enter next level menu A. When "MENU OSD" displays, press these keys to change the contents of an adjustment item, or change an adjustment value [], [] B. When "MENU OSD" un-displays, press [],adjust volume high; press []adjust volume low [POWER] Power on or power off the monitor 1.5.2 Hot Key Operation HOT KEY OPERATION FUNCTION AUTO MENU POWER Press [AUTO] & [MENU] at the same time, and then press [POWER] for DC power on. OSD menu will be shown with "F" on the left top. Select "F" for entering factory mode. DESCRIPTION

FACTORY MODE





ON

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1.5.3 Process To Access Factory Mode

Service Manual

Power Off

Press "AUTO"& "MENU"button at the same time

Power On

Release the "AUTO"& "MENU" button

Press "MENU" Button

Press "<" Button

Press "Menu" Button

Enter the factory Mode

1.6

Burn-in (Aging) Pattern 1.6.1 Burn-in patterns are: full Red, Green, Blue, White and Black 1.6.2 Stop burn-in pattern by providing with video signal from D-sub or DVI-D connector

1.7

Warm Up All test units have to be done warm up after at least 2 hours in a room with temperature of 40±5°C. (Except particular requirement)

2. INPUT SIGNAL
2.1 Video Signal Input
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2.1.1 VESA Analog The video input consists of red, green, and blue signals. The video signals are analog levels, where 0V corresponds to black and 700mV is the maximum signal amplitude. Input impedance of video pins is 75 ohm ±1%. Sync signal input The capability of sync signal inputs shall include separate sync. Input impedance: 2k2 ohms the signals are defined as follow: Separate sync TTL level, Positive/Negative 2.1.2 Input signal mode PRESET TEST MODE TIMING
Resolution H-Freq. (kHz) 31.5 37.9 37.5 35.1 37.9 48.1 46.9 48.4 56.5 60.0 67.5 60.0 64.0 80.0 55.9 75.0 31.5 35.0 49.7 60.2 68.7 64.0 80.0 48.3 53.6 56.6 61.8 71.7 81.1 49.7 58.4 60.2 62.7 V-Freq. (Hz) 60.0 72.0 75.0 56.0 60.0 72.0 75.0 60.0 70.0 75.0 75.0 60.0 60.0 75.0 60.0 75.0 70.0 66.7 74.6 75.0 75.0 60.0 75.0 60.0 66.0 70.0 66.0 67.2 76.0 60.0 70.0 72.0 75.0 Dot Clock (MHz) 25.175 31.500 31.500 36.000 40.000 50.000 49.500 65.000 75.000 78.750 108.000 108.000 108.000 135.000 106.500 136.750 28.300 30.200 57.300 80.000 100.000 108.000 135.000 64.130 70.400 74.250 94.880 117.010 134.990 Mode

640 x 480

800 x 600

1024 x 768 1152 x 864 1280 x 960 1280 x 1024 1440 x 900 720 x 400 640 x 480 832 x 624 1024 x 768 1152 x 870 1280 x 1024

VESA Standard

US Text

Power Macintosh series

1024 x 768 1152 x 900 1280 x 1024

Sun Ultra series

1280 x 800

Industrial Standard

2.1.3 VGA signal cable 15 pin D-sub VGA connector of signal cable. 2.1.4 Interface Analog signal: The input signals are applied to display through D-sub cable.
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Length: 1.8 m +/- 50 mm (fixed) Connector type: D-sub male. With DDC_2B pin assignments. Blue connector thumb-operated jack screws Pin Assignment: PIN No. 1 2 3 4 5 6 7 8 SIGNAL Red video input Green video input Blue video input GND Cable detect Red video GND Green video GND Blue video GND PIN No. 9 10 11 12 13 14 15 GND GND Serial data line (SDA) H. Sync / H+V V. Sync Data clock line (SCL) SIGNAL VGA +5V

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3. FUNCTION CHECK
3.1 OSD Function Test 3.1.1 Test mode: 1440x900 @ 60 Hz 3.1.2 Test pattern: pattern #1 of crosshatch (GENERAL-1) 3.1.3 Check single key function and hot key function about key "Power", "Menu"," ", " ", "Exit/Auto", it should operate normally Screen Picture Check 3.2.1 Test mode: 1440x900 @ 60 Hz 3.2.2 Test pattern: pattern #1 of crosshatch (GENERAL-1) 3.2.3 Select OSD menu to execute `Auto' function, screen picture shouldn't appear abnormal phenomenon and picture on screen should fit in with active display screen. Auto Color Balance 3.3.1 Test mode: 640x480 @ 60 Hz 3.3.2 Test pattern: pattern #42 of 5-MOSAIC 3.3.3 Enter "Factory Mode" pressing "Auto color" key, and execute "AUTO". Timing Check 3.4.1 Test mode: Refer to preset timing table and power saving mode 3.4.2 Test pattern: pattern #1 of crosshatch (GENERAL-1) 3.4.3 After change above timing and execute "Auto" function automatically, picture should fit in with active display screen. 3.4.4 Under power saving mode, LED lamp on the key board should be orange Power Consumption Function Test 3.5.1 Test mode: 1440x900 @ 60 Hz 3.5.2 Test pattern: pattern #11 of "BLACK" 3.5.3 Adjusting both brightness and contrast value to maximum, 3.5.4 Measure power consumption as the following Status Normal Standby (No H/V Power Consumption < 42W(with audio) < 1W
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3.2

3.3

3.4

3.5

LED Display Green Amber

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sync) Power off < 1W No display

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3.6 VGA Cable Detect Test If VGA cable of LCD monitor isn't connected to video pattern generator or PC, "NO SIGNAL" should be shown on screen. 3.7 Hi-Pot test Test condition: a. high voltage 2.3KV(DC) b. leakage current 10mA c. rising time 1 sec. d. test time 3 sec. 3.8 Grounding Test Test condition: a. test current b. impedance

30A / 2 sec < 0.1

3.9

Bumping Test 3.9.1 Test mode: 1440x900 @ 60 Hz; 3.9.2 Test pattern: pattern #1 of crosshatch (GENERAL-1) 3.9.3 To shock LCD monitor lightly at the center of rear cover and edges with 1~2kg/cm2 force for three times, no abnormal phenomenon is found on panel screen.

4. DISPLAY CHECK
4.1 Panel Flicker Check Connect LCD monitor to PC, set LCD monitor to be timing of 1440x900@60 Hz, adjust brightness to be default value (brightness at maximum), execute "Auto" function, and then check picture of shut down under windows 98 operating system, or flicker-pattern of pixel on-off. It should be that no flicker be found on panel screen. Panel Defect Inspection 4.2.1 Test mode: 1440 x 900@60Hz 4.2.2 Test pattern: Crosshatch/Full white/Red/Green/Blue/Black/16 color bar/64 gray bars 4.2.3 Display quality must be (according to DIN 13406-2 pixel fault class II) Defect Type Bright dot defect Dark dot defect Total bright and dark dots Bright Dots ­ 2 Adjacent B Bright Dots ­ 3 or more Adjacent Black Dots ­ 2 Adjacent B Black Dots ­ 3 or more Adjacent Distance between defect dots Distance between Dark dots Specification THD THD THD THD THD THD THD THD THD Major Minor

4.2

Note 1: Dot defect is defined as the defective area is not larger than 50% of the dot area. Bright Dot is defined 5% transmission ND filter. Note 2: Light Leakage: There shall not be visible light around the customer's bezel after assembly in normal View angle.
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Defect Type Dot Shape(ParticleScratch and Bubbles in Display area or on The Polarizer) Specification Size Black spots which appear when B/L operating 0.15mm D 0. 5 mm N3 Count (N)

Service Manual
Majo r Minor



Line Shape (ParticlesScratchFiber and Bubbles in display area or on The Polarizer)

L 0.5mm and W 0.05 mm

Ignored

0.5mm < L 5mm and 0.05mm < W 0.1mm L > 5mm or W > 0.1mm

N 4



N=0

Display non-uniformity Scratch Dirt Wrap Sunken No label Invert label Broken Dirt Not clear Word out of shape Mistake Position Not enough Limp Connection status Broken

There should be non-uniformity through 5% transparency of filter or judge by limit sample if necessary. No harm No harm No harm No Word can be read.



Bezel

Label

Screw Connecto r FPC/FFC

No Be attached on right position No No No bend on pins and damage No

5. PICTURE CHECK
5.1 Check brightness uniformity 5.1.1 Test mode: 1440x900 @ 60 Hz 5.1.2 Test pattern: pattern #41 of "WHITE" 5.1.3 Test tool: Color Analyzer Chroma7120

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5.1.4 Set brightness and contrast to be maximum, apply pattern as Fig.3, it should be the following requirement:
Min. luminance of nine points (backlight ) 75% Max. luminance of nine points (backlight)

Fig. 3 5.2 Color Temperature Check 5.2.1 Test mode: 1440x900 @ 60 Hz 5.2.2 Test pattern: pattern #41 of "WHITE" 5.2.3 Test tool: Color Analyzer Chroma7120 5.2.4 Set brightness to be maximum and contrast to be 50%, measure color coordinate and luminance by color analyzer as the following: Mode 9300K USER 6500K Chromaticity Coordinate x 0.283 ± 0.030 / 0.313 ± 0.030 y 0.298 ± 0.030 / 0.329 ± 0.030

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5.3

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Brightness Out (Video signal input 700mV ± 2%) 5.3.1 Test mode: 1440x900 @ 60 Hz 5.3.2 Test pattern: pattern #41 of "WHITE" 5.3.3 Test tool: Color Analyzer Chroma7120 Set brightness and contrast to be maximum with white pattern, to measure the screen center, the light output shall be >= BL cd/m2 Mode MT190AW01 V0 BL (cd/cm2) 300 Remark TYP

5.4

DDC Data Check 5.4.1 EDID program 5.4.2 Execute main program for EDID writing (refer to model type), using scanner for barcode download. 5.4.3 If writing EEPROM is successful, and then shows text "PASS" on screen; if writing EEPROM is failure, then shows text "FAIL". 5.4.4 EDID data: (For example) AL1917W DVI EDID table: 0 00 01 11 81 36 54 30 00 1 FF 10 50 00 00 0E 30 41 2 FF 01 54 71 9A 00 30 4C 3 FF 03 BF 90 01 0A 30 31 4 FF 80 EF 71 11 20 30 39 5 FF 29 80 4F 00 20 30 31 6 FF 1A 90 C4 00 20 30 37 7 00 78 4F 22 1E 20 30 57 8 04 E8 95 A0 00 20 30 0A 9 72 9A 0F A0 00 20 30 20 A 87 E5 81 50 00 00 30 20 B AD A6 80 84 FD 00 0A 20 C 00 58 81 1A 00 00 00 20 D 00 49 40 30 38 FF 00 20 E 00 99 81 30 4C 00 00 00 F 00 23 0F 20 1F 30 FC CS

0 1 2 3 4 5 6 7

AL1917W VGA EDID table: 0 00 01 11 81 36 54 30 00 1 FF 10 50 00 00 0E 30 41 2 FF 01 54 71 9A 00 30 4C 3 FF 03 BF 90 01 0A 30 31 4 FF 08 EF 71 11 20 30 39 5 FF 29 80 4F 00 20 30 31 6 FF 1A 90 C4 00 20 30 37 7 00 78 4F 22 1E 20 30 57 8 04 E8 95 A0 00 20 30 0A 9 72 9A 0F A0 00 20 30 20 A 87 E5 81 50 00 00 30 20 B AD A6 80 84 FD 00 0A 20 C 00 58 81 1A 00 00 00 20 D 00 49 40 30 38 FF 00 20 E 00 99 81 30 4C 00 00 00 F 00 23 0F 20 1F 30 FC CS

0 1 2 3 4 5 6 7

19

Acer

Service Manual

Chapter 6- TROUBLE SHOOTING
1. No Power & LED Off
No power

Check primary rectifier voltage

Check circuit if short

Check IC802, C804, T801,

Check F801, P801, RT,801,D801

Check pin6 of IC802 voltage about 12V

CheckC810,D803,C807,

Check pin2 of IC802 voltage about 3V

Check primary OVP, OLP and secondary feedback, OVP circuit

Check pin1 of IC802 voltage is below 1V

Check R811, R810, R809, R808,R814

END

20

Acer 2. Unstable Power
Unstable power

Service Manual

Check sampling Circuit

Check R822, R823, R824

Change R822, R823, R824

Check the R pin voltage of IC803 about 2.5V

Check the C pin voltage of IC803 if 3V

Change IC803

Check R819, R820

Check pin2 of IC802 voltage is 3V

Check R818, D804, C807 if short

Change R818, D804, C807

Check pin1 of IC802 voltage below 1V

Change R808, R 809, R810, R 811, R815, R814,Q803

END

21

Acer 3. No raster

Service Manual

22

Acer 4. Black screen
Black screen

Service Manual

Check power supply:pin 1,2 of CN101 YES

NG Power fail

NG Check power supply for U105 YES Check FB102,FB103, FB105,FB106

Check reset (pin84) of U105

NG Check C144,R172

YES NG Check crystal (pin 96,97) waveform of U105 Check X101,C153,C154

YES

Check CCFLEnable(pin 85) of U105

YES Check pin4 of CN101

YES Inverter Fail

NG

NG Check R167,Q106, R108,R110

U105 FAIL

23

Acer 5. Bad Screen

Service Manual

B ad S creen

OK L V D S C able R einsert W orkm anship

NG OK C hange L V D S C able NG L V D S C able N G

NG C heck C rystal: pin96,97 of U 105 C heckX 10 1, C 153, C 154

OK C heck the pins of U 105

24

Acer 6. White screen
White screen

Service Manual

OK LVDS Cable Reinsert Workmanship

NG OK Change LVDSCable NG OK Check VLCD is 5V NG Check LVDS signal OK Panel Fail LVDS cable NG

NG

Check Panel-Enable of U105(pin48)

U105 Fail

OK Check Q101,Q103,Q110, C108, C109

NG

END

25

Acer 7 No Sound

Service Manual

No Sound

Re-insert or Change the Line-in Cable

OK

OK NG Check Vs of IC 701? Power Fail

OK Check the Input of IC 701 NG

OK Check the output of IC 701 OK NG

Check the Mute and Volume pins of IC 701 shorted or not?

NG Change IC 701

End

26

Acer Attachment 1- Bill of Material PCBA P+I

Service Manual

27

Acer

Service Manual

28

Acer

Service Manual

29

Acer PCBA IF

Service Manual

30

Acer

Service Manual

31

Acer

Service Manual

PCBA KEY PAD

32

Acer

Service Manual

Attachment 2- Schematic

Project Name

(LE1939)AL1916W LCD Monitor

REVISION HISTORY Comments
First edition

Date

Author

Version

Remark

2006-05-27

kidd zhang jonas yang warren wang

V01

APPROVED TO RELEASE

InnoLux
Document Number : 0921351069 TITLE : History DATE : SHEET 1

AL1917W
SIZE : A4 CHECK BY : APPRO BY :

2006-05-27 OF 8 Rev : V01

DRAWN BY :

33

Acer
VCC3.3 VCC3.3 VCC5V R108 4K7 ON/OFF SBRI ON/OFF R110 4K7 3 CCFL_ENABLE 1 Q106 PMBT3904 2 VCC5V R190 VLCD 4 51 2 100 LED_G_C 4K7 LED_G//LED_O R107 + 2 C109 0.1/50V 390 R163 1 3 Q105 PMBT3906 VCC5V R191 4K7 2 R162 100 LED_A_C LED_A//LED_B R101 390 1 3 Q102 PMBT3906 VOL_C MUTE_C CN101 4500-06 VCC5V VCC3.3 100u/16V

Service Manual

VCC5V

D101 SKS20-04AT

U101 FS8860-33PJ

3

VIN

VOUT

2

100u/16V

+ C102 C104 0.1/50V

1

ADJ

+

From Power & Inverter

C101

C103 0.1/50V

U102 FS8860-18PJ 3 VIN VCC1.8 22u/25V ADJ VOUT 2

VCC1.8

1 2 3 4 5 6 7 8

1

+ C106 0.1/50V

VCC5V 3 Q101 AP2305GN 3 R197 220u/16V

VLCD

2

C107

0.1/50V

100K

1

R102

Q110 2N7002 1 C108

PANEL_ENABLE Q103 PMBT3904

4

R105

20K

1

10u/16V

+

R106 10K

CN105 LED_A//LED_B LED_G//LED_O

C111

2

3

C105

InnoLux
Document Number : 0921351069

AL1917W
SIZE : APPRO BY : A4

POWER MENU_UP//Key _Mute& DOWN_EXIT//Key _&2 KEY_1

1 2 3 4 5 6 7 8

C161

C162

TITLE : DC to DC DATE : SHEET 2 2006-05-27 OF 8 Rev : V01

2x4P 2.0mm From keypad

CHECK BY :

1000p/50V 1000p/50V

DRAWN BY :

34

Acer
CN102 DVI-D_CON/NC

Service Manual

11

FB111

60

12 DAT2DAT2+

FB112

60

13

FB113

60

14 VCC3.3 R122 10K DET_VGA 3 DDCA_SCL_I 3 DDCA_SCL VSY NC HSY NC DDCA_SDA_I 3 DDCA_SDA 3 3 DAT1DAT1+ DVI5V R124 R125 R127 R129 R130 R131 R132 NC NC 100 100 DAT0DAT0+ 100 100 100 100 1K R192 R193 R152 R153 100/NC 100/NC 100/NC SCL_DVI SDA_DVI 100/NC

R113 R114 R116 R117 R119 R120 R121 RIN 3 GNDR 3 GIN 3 GNDG 3 BIN 3 GNDB 3 SOG 3 PC5V_VGA 3 RX2RX2+ GND RX4RX4+ SCL SDA VS 1 2 3 4 5 6 7 8 SCL_DVI_I SDA_DVI_I

0 C112 0.047/25V 100 C113 0.047/25V 0 C114 0.047/25V 100 C115 0.047/25V 0 C116 0.047/25V 100 C117 0.047/25V 470/NC C118 0.047/25V/NC

15

CN103 DZ11AA1-H5W6-4F 1 R 6 2 G 7 3 B 8 4 9 5 10 3 3 VCC3.3

DETECT

16

17

R123 4K7/NC R126 R128 DET_DVI 3 100/NC 4K7/NC

FB101

120

RX1RX1+ GND RX3RX3+ 5V GND HP 3

9 10 11 12 13 14 15 16

Q104 1R103 PMBT3904/NC DCLK+ DCLK2 4K7/NC HP_CTRL

NC

2K2 2K2

75 1%

NC

75 1%

NC

75 1%

NC

33p/50V

ZD105

ZD106

ZD101

ZD107

ZD108

220p/50V

5V6

5V6

5V6

5V6

5V6

RX0RX0+ GND RX5RX5+ GND RXC+ RXC5V6/NC 5V6/NC 5V6/NC

17 18 19 20 21 22 23 24

C119

C120

C121

C122

C123

R133

R134

R135

R136 R137

C124

C125 C126

ZD102

ZD103

VCC3.3 VCC3.3 TVS101 BAV99/NC TVS102 BAV99/NC TVS103 BAV99/NC 2 2 2 TVS104 BAV99/NC 2 3 3 3 3 1 G 1 B 1 DETECT 1 B+ BG+ GR+ RCLK+ CLK3 3 3 3 3 3 3 3 R

DAT0+ DAT0DAT1+ DAT1DAT2+ DAT2DCLK+ DCLKVCC3.3 2 2

R138 R139 R140 R141 R142 R143 R144 R145

10 10 10 10 10 10 10 10

2

2

2

2

2

1

1

1

1

1

1

1

1

3 3 3 3 3 TVS112 TVS105 TVS108 TVS109 TVS111 TVS106 TVS107 TVS110 BAV99/NC BAV99/NC BAV99/NC BAV99/NC BAV99/NC BAV99/NC BAV99/NC BAV99/NC D103 1 3 4K7 4K7 2 BAV70 U103 R149 R150 C129 0.1/50V

3

3

2

3

1

3

DVI5V

PC5V_VGA VCC3.3

2

VCC3.3

InnoLux
Document Number : 0921351069 TITLE :
DDCA_SCL DDCA_SDA

ZD104

1917W
SIZE : A4 APPRO BY :

4K7/NC 4K7/NC 4K7/NC

D102 BAV70/NC

C127 0.1/50V/NC

R146 R147 R148

C128 0.1/50V/NC U104 1 VCC 2 A0 WP 3 A1 SCL 4 A2 GND SDA WP 3 1 2 3 4 A0 A1 A2 GND CAT24WC02W

8 7 6 5

R151

100/NC SCL_DVI SDA_DVI

VCC WP SCL SDA

8 7 6 5

Input

CHECK BY :

CAT24WC02W/NC

DATE : SHEET 3

2006-05-27 OF 8 Rev : V01

DRAWN BY :

35

Acer
VCC3.3 VCC3.3 4K7 AVDD RP101 4K7x4 4K7x4 RP102 1 2 3 4 1 2 3 4 22u/25V + FB104 60 1 2 3 4 VDDP VDDC 4K7x4 RP103

Service Manual

VDVI VMPLL VPLL AVDD

8 14

98

16

24

32 49 56 75

82 66 51 34

8 7 6 5

8 7 6 5 8 7 6 5

R180

VDDP VDDP VDDP VDDP

AVDD_DVI AVDD_DVI

AVDD_PLL

AVDD_ADC

VDDC VDDC VDDC VDDC

AVDD_MPLL

GPIO_P07 GPIO_P06 GPIO_P02/SAR3 GPIO_P01/SAR2 GPIO_P00/SAR1 RSTN 1 2 3 4 42 41 44 43 I2C_MCL I2C_MDA LED_G_C LED_A_C GPIO_P22 GPIO_P23 GPIO_P10/I2C_MCL GPIO_P11/I2C_MDA VCC3.3

92 91 90 89 88 87 R157 R158 R159 R160 R161 HP_CTRL Key _1 POWER MENU_UP//Key _mute& DOWN_EXIT//Key _&2 1K 1K 1K 1K 1K

C138

22u/25V

2 2 2 2 2 2 2 2 2 2 2 FB105 60

GNDB BIN GNDG GIN SOG GNDR RIN HSY NC VSY NC DDCA_SDA_I DDCA_SCL_I 2 DET_VGA GPIO_P13 PWM0/GPIO_P26 PWM1/GPIO_P25 GPIO_P12 GPIO_P27/PWM1 PWM2/GPIO_P24 94 93 86 85 48 47 100 100 100 100 100 100 R164 R165 R166 R167 R168 R181 MUTE_C VOL_C SBRI CCFL_ENABLE PANEL_ENABLE HDCP_WP

17 18 19 20 21 22 23 27 28 30 31 35

BIN0N BIN0P GIN0N GIN0P SOGIN0 RIN0N RIN0P HSY NC0 VSY NC0 DDCA_SDA/RS232_TX DDCA_SCL/rs232_RX GPIO_P15/PWM0

VMPLL

2 2 2 2 2 2 2 2 LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P 78 77 74 73 72 71

TSUM56AL-1

2 2

R+ RG+ GB+ BCLK+ CLK2 WP 2 DET_DVI SDA_DVI_I SCL_DVI_I

3 4 6 7 9 10 12 13 95 99 100 1

RX2P RX2N RX1P RX1N RX0P RX0N RXCKP RXCKN GPIO_P14 GPIO_P16/PWM2 DDCD_SDA DDCD_SCL

VCC1.8

VDDC

0.1/50V

0.1/50V

22u/25V

U106

C135

C141

0.1/50V

8 7 3 4 LVA1M LVA1P 63 62

VCC HOLD# WP# GND

SO CS# SCK SI

2 1 6 5

37 38 39 40

SDO SCZ SCK SDI

CN104 FFC-CON VCC3.3

AVDD

SST25VF010A R169 390 1%

15

REXT

VDDP

C133

C134

VDVI

81

VCTRL

VCC5V

0.1/50V

0.1/50V

0.1/50V

0.1/50V

MODE[0] MODE[1]

XIN

XOUT

NC NC NC

REFM

GND GND GND GND GND GND GND GND GND GND

BYPASS

REFP

RST VLCD R171 C140 1u/16V R170

22u/25V

0 0

+ C147 C145

2 5 11 29 33 50 57 76 79 83

36 45 46

25

26

0.1/50V

C148

C149

4K7 52 4K7 53

R172 10K

X101 14.31818MHz

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

R173 R174

C152 0.1/50V 80

C153 22p/50V 96

C154 22p/50V 97

InnoLux
VCC3.3 C156

1917W
Document Number : 0921351069 SIZE : A4 APPRO BY :

1 U108

2

3

4 0.1/50V U109

TITLE : TSUM56AL-1
A0 A1 A2 GND HDCP_WP VCC WP SCL SDA A0 A1 A2 GND 1 2 3 4 8 7 6 5 1 2 3 4

1000p/50V

1000p/50V

1000p/50V

CHECK BY :

I2C_MCL I2C_MDA 100

R178 100

8 7 6 5 VCC WP SCL SDA

C157

C158

C159 1000p/50V

C160

R179

AT24C04N

AT24C04N/NC

DATE :

2006-05-27

DRAWN BY :

36

SHEET

4

OF

8

Rev :

V01

C150

C131

C132

0.1/50V

C144

+

VCC5V

10u/16V

84

LVA2M LVA2P LVACKM LVACKP LVA3M LVA3P

61 60 59 58 55 54

FB106 60

C136

C137

LVBCKM LVBCKP LVB3M LVB3P LVA0M LVA0P

70 69 68 67 65 64

+

0.1/50V

0.1/50V

VCC3.3

FB103 60

C142

C143 0.1/50V +

C139 0.1/50V VPLL

C151 0.1/50V

Acer
1 H L C502 2.2u/25V R506 3M 3KV R524 3 7 3K3 1% C506 10p/3KV 8 1 D503 AP9971GM 3 1 C513 2200p/50V BAV99 C514 2200p/50V 3 D504 BAV99 C530 470 0.1/50V PGND R535 0 15 14 U502 13 1 6 2 C526 3 4 AP9971GM 5V D511 SN4148 C520 0.1/50V R526 D505 1M SN4148 D512 SN4148 D513 SN4148 R520 100K 1% op1 op2 op3 C525 2200p/50V C527 2200p/50V C524 0.068/50V R528 390 1% R533 15K 1% 5 6 220pF/50VNC 3 1 T502 SPW-068 C528 3p/3KV D509 BAV99 2 3 1 3 D507 BAV99 R529 470 1 2 4 7 8 7 12 68p/50V 11 10 C512 R516 C511 C521 9 C516 C529 1000p/50V C522 1000p/50V op3 R527 470 DRV2 GNDA CT 16 R530 33 1 2 H L R532 33 R508 R507 3M3 1% 51K 1% R534 0 C509 3p/3KV 2 R521 470 1 2 op2 R523 2 H L CN502 2P 1 2 R510 D502 BAV99 470 C504 1000p/50V 8 7 C508 3 5V 4 5 6 3 220pF/50V/NC 1 4 6 C505 T501 1000p/50V SPW-068 U501 1 2 C501 470u/25V op1 2 R504 33 CN501 2P R505 33

Service Manual

3 +14V

R503 1K5

R502 680

1

3

Q501 PMBT3904

ZD501 5V6

2

0.1/50V C503

R517 10/NC

3 VCC5V

C507 2.2u/25V

R509 R511 NC 200K 1%/ NC

1

DRV1

2

VDDA

3

3 BRIGHTNESS

R512 110K 1%

TIMER

4

DIM

CN503 2P

5 LCT ENA NC

ISSEN SSTCMP

330p/50V

R515 NC

8

1000p/50V

604K 1%

R514 47K 1%

C510 1000p/50V

7

OVPT

0.022/25V

R513 10K 1%

6

VSEN

R525 3M 3KV D508 BAV99 2 3 1 R531 3K3 1% C523 10p/3KV 8

NC

C515 2.2u/25V

IC501 OZ9938G

1 2

H L CN504 2P

D501 SN4148

3 ON/OFF

R501 100K 1%

R518 470K 1%

C518 0.1/50V C519 0.1/50V R519 1M

InnoLux
Document Number : doc TITLE : inverter sch

AL1917W
SIZE : A4 CHECK BY : APPRO BY :

DATE :

2006-05-29

DRAWN BY :

37

SHEET

4

OF

4

Rev :

V01

Acer
10R R827 C805 2200p/400V 1 11 2 R804 68K 2W 680u/25V C815 + + C816 680u/25V 1 MUR1100ERL D802 8 DC 700V Max. 2 3 4 + + C819 1000u/10V + 6 100R R818 C807 47u/25V 5 D803 A02-LF 7 D805 1000u/10V SRF5-04CT C818 + 0.1/50V C822 C820 47u/25V 3 DC 700V Max. 1 5uH L3 R817 200R 9 2 R809 510K 3 ZD803 9V1 + 470u/25V C817 C806 4700p/400V 2 D804 UFF80-015CT 10R 1000p/500V R828 C814 10 3 R816 100R 1W R808 510K 1 5uH L2 +14V T801 SPW-055 1000p/500V C813

Service Manual

DC 380V Max.

2

4 -

+ 1

100u/450V C804

BL4-06 D801

+

RMS

RMS

R803 18K

Q801 2PC1815GR

AC 264V

3

L1 20mH 2 47p/1KV C808

AC 264V

VCC5V ZD801 5V6 R829 10K ZD802 16V

4

1

10R R806

3

2

AP2761I Q804 1

3

R801 1M 1K R813 4 3 R807 10K R805 0R18 2W IC804 LTV817M 4 3 IC801 LTV817M 1 2 C 3 PMBT3904 Q802 R A 1 R820 1K 2 1

R802 1M

R810 510K R812 10K C823 2200p/400V R819 100R

R814 1K

R822 5K1 1% 1K R821 R823 51K 1% C821 0.1/100V

RMS

C803 0.47/275V

NTC 5R RT801

R811 510K

AC 264V

IC802

RMS

100p/1KV C809

C801 C802 2200p/250V 2200p/250V 0.1/50V C811

AC 264V

5 6 7 8

DRV GND Vcc CS NC FB HV BO

4 3 2 1

R825 1K IC803 TLV431ALP C824 0.1/50V 2 R824 3K3 1%

R826 200R

NCP1337 C812 220p/50V

F801 2A/250V

C810 0.1/50V

R815 12K 1%

1

2

3

CN801 VCC5V ON/OFF 4 BRIGHTNESS 4 Volume MUTE 2 2

P801

InnoLux
Document Number : TITLE :

AL1917W
SIZE : A4 POWER SUPPLY DATE : SHEET 3 2006-03-02 OF 4 Rev : V01 APPRO BY :

L

AC_SKT

N

1 2 3 4 5 6 7 8

CHECK BY :

60mm 8P TO SCALER BD CN101

C825 0.1/50V

DRAWN BY :

38

Acer
+14V +14V + C703 0.1/50V C702 470u/25V 2,3

Service Manual

Lay out guide : 1. Tie the I.C . pin 1,2,3,18,19,20 to ground w ith a large copper pour (open mask lay er)

8

16

P701 AUDIO IN VS VS C704 0.47/16V 4 NC + INL OUTL + OUTR 12 MUTE 1K STBY VAROUT_L VOLUME C701 C709 R709 GND GND GND GND GND GND GND + R710 5 220u/16V 0.1/50V 1K VAROUT_R 7 11 6 SVR 10 14 C707 470u/16V 17 INR L R 9 C706 0.47/16V 15 C705 470u/16V

U701 TDA7496L CN701 4P 2.0mm 4 3 2 1

Line_L

R702

10K

2 3 4 5 1

Line_R

R703

10K

+14V

R704 10K

+14V

5K6

2K

2K

2

10u/25V

R705 27K + 1 2 3 13 18 19 20

R708 27K R711 R712 R701 C713

R707

C711 4700p/50V

+14V

R713

2

5K6

2

VOL

R714

100

1

3

C712 4700p/50V 5K1

Q703 PMBT3904 1

2

MUTE

1

3

Q701 PMBT3904

3

R706 47K

Q702 PMBT3904

InnoLux
Document Number : TITLE : Audio DATE : SHEET 8

AL1917W
SIZE : A CHECK BY : APPRO BY :

2

2006-05-27 OF 8 Rev : V01

DRAW N BY :

39

Acer
CN107

Service Manual

R901 KEY_POWER GND AMBER GREEN 1 SW104 1 2 TACT-4.3 2 TACT-4.3 LED101 LED G/Y 4 3 1 2 4 3 8P R/A 2.0mm TO I/F BD CN105 SW105 3

2K2

R902

2K2

8 7 6 5 4 3 2 1

SW101

SW102

SW103

1 2

4 3

1 2

4 3

1 2

4 3

TACT-4.3

TACT-4.3

TACT-4.3

AUTO

-

+

MENU

POWER

InnoLux
Document Number : TITLE : KEYPAD DATE : SHEET 7 2005-05-27 OF 8

AL1917W
SIZE : Custom CHECK BY : APPRO BY :

DRAWN BY : Rev : V01

40

Acer

Service Manual

Attachment 3- PCB Layout

41

Acer

Service Manual

42

Acer

Service Manual

43