Related Manuals for Acer AL732
Summary of Contents for Acer AL732
- Page 1 AL732 Service Manual...
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Page 2: Table Of Contents
TABLE OF CONTENTS S E R V I C E W A R N I N G A. I M P O R T A N T S A F E T Y I N S T R U C T I O N B. -
Page 3: Important Safety Instruction
To prevent from fire or shock hazard,do not expose monitor to any rain or any form of water.High voltage is inside the monitor so please do not remove the back cover of the cabinet if you are not a qualified monitor engineer.Contact the local dealer or the nearest Acer branch office if you need help. A. IMPORTANT SAFETY INSTRUCTION Prior to using this service manual,please ensure that you have carefully followed all the procedures outlined in the user's manual for this product. -
Page 4: Specifications
1. Maximum Resolution 2. Recommend Resolution 3. Synchronization Range Horizontal Vertical 4. Active Display Area 5. Dot Pitch 6. Support display colors 7. Contrast Ratio (Typical) 8.Luminance of White 9. Bandwidth 10. User Control 11. OSD Function 12. View Angle Horizontal Vertical 13. - Page 5 Back porch Sync-width Preset Modes 720X400 Pixel clock 28.325 (MHz) 31.472 H-Frequency (KHz) 31.774 H-Total µ H-Active Display 25.419 (µs) H-Blanking 6.355 (µs) Front Porch 0.635 (µs) 3.813 H-Sync-width (µs) H-Back Porch 1.906 (µs) V-Frequency 70.1 (Hz) V-Total 14.267 (ms) V-Active Display 12.710 (ms)
- Page 6 VESA Preset Modes 800X600 Pixel clock 49.500 (MHz) 46.875 H-Frequency (KHz) 21.333 H-Total (µs) 16.162 H-Active Display (µs) H-Blanking 5.172 (µs) Front Porch 0.323 (µs) 1.616 H-Sync-width (µs) 3.232 H-Back Porch (µs) 75.0 V-Frequency (Hz) 13.333 V-Total (ms) 12.800 V-Active Display (ms) 0.533 V-Blanking (ms)
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Page 7: D Control Location
D CONTROL LOCATION 1. Menu Button ( MENU ) 2. Select Button ( < , > ) 3. Auto Button ( AUTO ) 4. Power Button 5. LED ( Power Indicator ) 1. S-VIDEO 2. DC IN 3. VIDEO IN 4. -
Page 8: Conduction View
E. CONDUCTION VIEW MAIN BOARD (Component Side) - Page 9 MAIN BOARD (Solder Side)
- Page 10 CONTROL BOARD (Component Side) CONTROL BOARD (Solid Side)
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Page 13: A D J U S T M E N T P R O C E D U R
ADJUSTMENT PROCEDURE # Test Meter ITEM * Test Point Program Menu. @ Pattern # Digital Voltmeter Check * CN7 @ Crosshatch Pattern (31.5KHz,640x480) Power Saving # Wattmeter Check # PC or Pattern generator @ Crosshatch Pattern (31.5KHz,640x480) Into Factory # PC or Pattern mode generator @ Crosshatch Pattern... -
Page 14: T R O U B L E S H O O T I N G H I N T
G. TROUBLE SHOOTING HINTS No Display ( Black ) LED ON Push the power switch ON/OFF LED Color change ? Check main board U4/Pin201 Hi / Lo under push power sw? To Step 2 Power adapter ? Back light Check the /Pin1 of Inverter +12V ? - Page 15 Check the connection of Change the Hi / Lo under cable push power sw? main board Display ? Change the Inverter OK ! Display ? OK ! Change the main board To Step 2...
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Page 16: R E P L A C E M E N T P A R T S L I S
Step 2 Check the main board +5.0 V ? +3.3 V ? H/V input Signal ? Check H/V Signal Display ? OK ! Check Adapter, F1, Check U13,U12,R83 Check Change Change Signal Cable... - Page 17 No display (White) Check the main board +3.3V ? Check the main board U4/Pin32 H/V Input Signal ? Check H/V Signal Display ? OK ! Check U13,U12,R83 Check Check 3.3V Circuit Change Check Change Signal Cable...
- Page 18 No Sound Check Audio Input ? U19 Pin1 12V? Check Pin23/24 U18 Pin4 Vcc ? Check U18 Pin15/28 ? Speaker ? OK ! Check Audio Source Check Power Supply Check Change Power Supply Check Change Speaker Cable...
- Page 19 No Video Check CN11/CN16 Video Input ? Vcc ? Check Pin81-90 Video Output Check Pin81-90 Video Output OK ! Check Video Cable Check Power Supply Check Change Power Supply...
- Page 20 H. REPLACEMENT PARTS LIST Parts No. Description Part Location Q’ty...
- Page 30 I. BLOCK DIAGRAM VSYNC HSYNC VGA-IN 12PIN 8 R0~R7 3 {R.G.B} 8 G0~G7 DDC-SDA DDC-SCL 8 B0~B7 D.D.C 24C21 EEPROM CRYSTAL 24C16 12M HZ EEPROM POWER SWITCH POWER SUPPLY AND CRYSTAL REGULATOR 12M HZ POWER ADAPTER LVDS SCALER 8 RA0~RA7 8 GA0~GA7 8 BA0~BA7 LVDS...
- Page 31 J. SCHEMATIC DIAGRAM...
- Page 32 DATA5+ CLK_SHLD CLK+ CLK- A_RED A_GREEN A_BLUE VGA_HSYNC A_HSYNC A_GND A_GND SHELL2 DEL U22 月 日修改 Acer Incorporated Title VGA & DVI Input Size Document Number AL732 Date: Thursday, January 23, 2003 24LC21 VCK_D1 VCLK 0.1uF RX2m RX2p RX1m RX1p...
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Page 33: S C H E M A T I C D I A G R A
DGG5 DGG6 DGG7 DGB0 DGB1 DGB2 DGB3 DGB4 DGB5 DGB6 DGB7 0.1uF 0.1uF 0.1uF 0.1uF LED1 Acer Incorporated LED2 DPMS LCDON BKLON DECOE Title MUTE AD & Scaler 232E 10月 1 6日修改 Size Document Number AL732 74LV273A Date: Thursday, January 23, 2003... - Page 34 IA20 IA21 ROMWEn OPTIONAL Promjet Header, Removed for Production RESETn CON4 2.2K 月 日修改 FCEn ICEn CON3 Acer Incorporated Title Memory & LCD Power control Size Document Number AL732 Date: Thursday, January 23, 2003 D[15:0] 2.2K 100K ICEn 3.3K 3.3K 3.3K...
- Page 35 PLL VCC TXIN22 PLL GND TXIN23 PWR DWN TXCLKIN D-HSYNC TXIN24 TXIN26 D-VSYNC TXIN25 L0603 DS90C383-QSOP56 D-DE2 D-SHCLK2 Acer Incorporated Title Output & Connector Size Document Number AL732 Date: Thursday, January 23, 2003 JSTB30B-PHDSS RXO0- 1-19 RXO0+ 2-18 RXO1- 3-17...
- Page 36 C115 C116 0.1uF 220uF/16V 4.7K On/Off 2N3904 C117 C118 0.1uF 0.1uF 4.7K NP(0603) 4.7K 月 日修改 C125 C126 10uF/25V 0.1uF 2N3904 Acer Incorporated Title Power supply Size Document Number AL732 Date: Thursday, January 23, 2003 4.7K 2N3904 BKLON PWMOUT Sheet...
- Page 37 C159 R123 33K 0.1uF 10UF/16V R122 C162 33PF MUTE MODE GAIN SDWN Acer Incorporated Title Audio Size Document Number AL732 Date: Thursday, January 23, 2003 D E L L 1 5 D E L L 1 7 D E L C 1 3 4...
- Page 38 XPD6 V656_6 XPD7 V656_7 RTS0 R142 0 (OPT) RTS1 R143 0 (OPT) RTC0 R144 3.3K LLC2 R145 0 (OPT) Acer Incorporated Title Decoder Size Document Number AL732 Date: Thursday, January 23, 2003 Sheet VCC3_V C164 C165 0.1uF 0.01uF AVCC_V C166 C167 0.1uF...