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Acer PD721, Service Manual

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Acer PD721 Service Manual Download Page 27

Chapter 3

20

Removing AV Module and Connector Board

1.

Turn over Bottom Housing and remove four screws from Bottom Housing.

2.

Unscrew two screws of Label Connector Module to remove Label Connector Module

and remove two screws from Connector Cover Clamp.  Take off Side Vent.

Connector Cover Clamp

Bottom Housing

Side Vent

3.

Remove two screws and four long screws from Label Connector Module.

4.

Unscrew four screws of Connector Board to remove it.

Connector Board

Label Connector

Module

Connector Board

Summary of Contents for PD721

Page 1: ...Acer PD721 Service Guide Service CD P N N A Service guide files and updates are available on the CSD web for more information please refer to http csd acer com tw ...

Page 2: ...II Revision History Please refer to the table below for the updates made on Acer Altos PD721 service guide Date Chapter Updates ...

Page 3: ...spect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose Any Acer Incorporated software described in this manual is sold or licensed as is Should the programs prove defective following their purchase the buyer and not Acer Incorporated its distributor or its dealer assumes the entire cost of all necessary servicing repair and a...

Page 4: ... bits and pieces of additional information related to the current topic WARNING Alerts you to any damage that might result from doing or not doing specific actions CAUTION Gives precautionary measures to avoid possible hardware or software problems IMPORTANT Reminds you to do specific actions relevant to the accomplishment of procedures ...

Page 5: ... NOT be covered in this generic service guide In such cases please contact your regional offices or the responsible personnel channel to provide you with further technical details 2 Please note WHEN ORDERING FRU PARTS that you should check the most up to date information available on your regional web or channel If for whatever reason a part number change is made it will not be noted in the printe...

Page 6: ...VI ...

Page 7: ...ing Lamp Ballast and Power Supply 21 Removing Lamp Module and Thermal Board 22 Removing Fan Module and Front End Board 23 Removing Formatter Board 24 Removing Engine Module 25 Chapter 4 Troubleshooting 26 Equipment Needed 26 Main Procedure 27 Power Troubleshooting 28 Performance Troubleshooting 29 Function Troubleshooting 30 Audio Troubleshooting 31 Remote Control Troubleshooting 31 Function Test ...

Page 8: ... o i t c e j o r P m m 5 4 3 8 8 2 f 9 6 2 4 4 2 F s u c o F l a u n a M d n a m o o Z l a u n a M 2 1 1 1 l a n o g a i D e z i S n e e r c S n o i t c e j o r P m 5 2 6 6 4 2 m 8 5 0 3 2 e c n a t s i D n o i t c e j o r P m 0 1 8 2 3 m 4 1 1 4 7 3 e t a R n a c S l a t n o z i r o H z H k 0 0 1 5 1 e t a R n a c S h s e r f e R l a c i t r e V z H 0 2 1 3 4 e p y T p m a L p m a L P H U e l b a...

Page 9: ...f n i P 5 1 B U S D i n i M 1 h g u o r h t p o o l r o t i n o m r o f k c a J i n i M o i d u A 1 t r o P e s u o M e t o m e R 1 s e i r o s s e c c A d r a d n a t S d r o C r e w o P C A M 8 1 e l b a C l a n g i S A G V n i P 5 1 e l b a C o e d i V V T D H e t i s o p m o C A C R e l b a C l a n g i S o e d i V S r e s a l d n a n o i t c n u f e s u o m h t i w l o r t n o C e t o m e R s ...

Page 10: ...r t n o C l e n a P 2 h c t i w S r e w o P r o t c e n n o C r e w o P 3 s t r o P n o i t c e n n o C 4 g n i R s u c o F 5 s n e L m o o Z 6 g n i R m o o Z 7 r e k a e p S 8 r e v i e c e R l o r t n o C e t o m e R 9 n o t t u B r o t a v e l E 0 1 t o o F r o t a v e l E ...

Page 11: ...e D 1 D E L g n i n r a W p m a L 2 D E L g n i n r a W e r u t a r e p m e T 3 e m u l o V 4 e t u M 5 f f O n O u n e M 6 s y e K t c e l e S l a n o i t c e r i D r u o F 7 r e t n E 8 m o o Z 9 c n y s e R 0 1 e c r u o S 1 1 y b d n a t S r e w o P ...

Page 12: ... I o e d i V S 5 I V D r o f t u p n I o i d u A 6 r o t c e n n o C t u p n I I V D 7 r e t u p m o C r o f t u p n I o i d u A 8 r o t c e n n o C o e d i V t n e n o p m o C V T D H l a n g i S g o l a n A C P 9 r o t c e n n o C t u p t u O o i d u A 0 1 r o t c e n n o C h g u o r h t p o o L r o t i n o M 1 1 r o t c e n n o C t u p n I e s u o M e t o m e R 2 1 h c t i w S r e w o P 3 1 r o...

Page 13: ...S Video Video Audio DVI D Sub Mouse RS232 Input Speaker Front End Board Inter Lock Switch LVPS Module IR Receiver Fan Thermal Board Thermal Sensor Formatter Board Module Lamp Ballast Module Keypad Photo Sensor LAMP Module Color Wheel Thermal Switch ...

Page 14: ...Thermal Board LVPS Module DMD Module R G B H Vsync Digital R G B data H Vsync SDA SCL GCLK y 0 7 UV 0 7 GM VHS GM VVS GM VPEN GM VCLK Standby out 7 Sec RESET MCLK DCLK KDS 0 3 KDR 0 2 ERR Standby 1 ECOMODE LAMP Lit Digital R G B Data DCLK0 DENR DVS DHS LAMP ON Lamp Lit RESET Lamp Lit RESET0 Lamp Lit LAMP IN LAMP OUT ...

Page 15: ...ERMAL BOARD Interface FAN 1 4 THERMAL SWITCH THERMAL SENSOR LM75 MAIN BOARD KEY PAD 20P Connector to Formatter Board 16P Connector 3P Connector 4 2P Connector 4P Connector 2 STB ECON KEY 7PIN ERR_OUT LAMPMISS POWER 15V 5VA STANDBY ERR_OUT IR_ON ...

Page 16: ...F2A CONTROL VSYNCZ HSYNCZ ACTDATA TFIELD OLACT SYNCVAL LAMP CONTROL STATUS COLOR WHEEL INDEX FPGA CLK FLASH PROGRAMMING HEADER IIC BUS HITACHI DOWNLOAD HEADER CLKIN COLOR WHEEL CONTROL COLOR WHEEL STATUS CWRSTZ VOLTAGE ENABLES BIAS BIN BIAS RESET CONTROL DMD CONTROL PBUS2 MENORY CONTROL A MENORY ADDRESS A 12 MENORY CONTROL B DMD CONTROL COLOR WHEEL DRIVE DATA 8 VSYNCZ RESETZ ADDRESS 19 MBIASRST 16...

Page 17: ... e d o c t o o B x e h e d o c t o o B x e h a t a d g i f n o C x e h i u G e x a e d o C m o R x e h r e h s a l F f n i K D S w p t x t m u S k h C x e h r e h s a l F e x e M U S P S I D n o i t a c i l p p A C F M r e d a r g p U h s a l F e r a w d r a H e r u t x i F m m 0 0 8 1 N I P 3 n i D i n i M o T e u l B 2 3 2 S R e l b a C A v e R 1 0 0 1 0 3 6 8 2 4 N P C P r o t c e j o r P 1 2 7...

Page 18: ...11 Chapter 2 Setup Procedure 1 Connect RS232 to mini din 3P Cable to COM1 of PC and PD721 DFP Port COM1 Upgrading Procedure 1 Execute FlashUpgrader MFC Application ...

Page 19: ...Chapter 2 12 2 Click Choose button 1 2 3 Search pwSDK inf file from PD721 F W folder then click Open button PD721 V05 2002 08 13 PD721 V05 2002 08 13 ...

Page 20: ...13 Chapter 2 4 Select Serial Port 5 Select COM1 port PD721 V05 2002 08 13 PD721 V05 2002 08 13 ...

Page 21: ... 115200 then click Flash button 7 Plug in the Power Cord to PD721 then press and hold on Standby key on PD721 keypad Note The Firmware upgrade program will be stop if you havn t hold the standby button PD721 V05 2002 08 13 PD721 V05 2002 08 13 ...

Page 22: ...15 Chapter 2 8 Downloading Flasher hex and Gui hex files 9 Keep on downloading RomCode hex file PD721 V05 2002 08 13 PD721 V05 2002 08 13 ...

Page 23: ...Chapter 2 16 10 After Configdata hex file is downloaded await starting up PD721 about 2 3 seconds then finish the upgrading procedure PD721 V05 2002 08 13 ...

Page 24: ...screws in a safe place and separate them according to grouping Tool Needed Chapter 3 m e t I O T O H P t f e L r e p p i N e s o N g n o L t h g i R r e p p i N g n i t t u C e l g n A p o T m m 5 s e v e e l S x e H 1 0 1 t i B w e r c S 1 0 1 2 0 1 7 0 1 t i B w e r c S m o t t o b o t p o t m o r f General Information Before You Begin Before proceeding with the disassembly procedure make sure t...

Page 25: ...move four screws beside Top Housing 3 Lift up Top Housing and unplug three wires to Thermal Board IR Cover Module and Speaker Board Bottom Housing Top Housing IR Cover Module Speaker Board Keypad Board 4 Unscrew one screw to remove Speaker Board Unscrew four screws to remove IR Cover Module Vent IR Cover Module Vent Speaker Board ...

Page 26: ...bber Left Speaker Rubber Right 5 Tear off Keypad Light Insulator then remove four screws of Keypad Board and tear off 3M Tape then unscrew two screws of Speaker Holders to remove speaker Tape 3M J350 17 60mm Keypad Light Insulator Speaker Holder ...

Page 27: ...Label Connector Module to remove Label Connector Module and remove two screws from Connector Cover Clamp Take off Side Vent Connector Cover Clamp Bottom Housing Side Vent 3 Remove two screws and four long screws from Label Connector Module 4 Unscrew four screws of Connector Board to remove it Connector Board Label Connector Module Connector Board ...

Page 28: ...nplug three wires and unscrew four screws of Ballast Bracket to remove Ballast Module 3 Remove two screws from Power Socket Bracket and take off it 4 Loosen one screw of Power supply from grounding 5 Unscrew four hex screws of Power Supply to remove it Power Power Insulator Lamp Housing 3M Tape Lamp Ballast Ballast Bracket Insulator ...

Page 29: ...e screws of Lamp to remove Lamp 3 Unplug seven cables from Thermal Board 4 Remove one screw from Thermal Sensor Board Unscrew one screw and one hex screw to remove Thermal Board The one hex screw is under one screw of Thermal Sensor Board 5 Unscrew three screws of Fan to remove Fan Engine Module Fan Thermal Board Thermal Sensor Board Bracket Bottom Housing Lamp Lamp Cover ...

Page 30: ...t End Board 1 Remove two screws from Fan Module and take off it 2 Unscrew four screws and one long screw of Engine Module 3 Unscrew two screws to remove Fan Module Fan 4 Unscrew two screws to remove Front End Board from Engine Front End Board ...

Page 31: ...ove Fan from Engine Module 3 Unscrew one screw to remove Fan Removing Formatter Board Fan Engine Module 4 Unscrew two screws to remove Heat Sink 5 Unscrew four screws to remove Formatter Board 6 Unscrew two screws to remove Safe Switch Engine Module Safe Switch Formatter Board Heat Sink ...

Page 32: ...25 Chapter 3 Removing Engine Module Engine Module ...

Page 33: ...roblems of component repairing and professional problems The Troubleshooing section focus on below items 1 Power Troubleshooing 2 Performance Troubleshooting 3 Function Troubleshooting 4 Audio Troubleshooting 5 Remote Control Troubleshooting Equipment Needed Chapter 4 m e t I r o t c e j o r P 1 2 7 D P e l b a C A G V o t 1 M A S E V r e t u p m o C l a n o s r e P C P t u p n I o e d i V t u p n...

Page 34: ... turn power on Start Is Lamp light on A Power Troubleshooting Yes No C Function Troubleshooting Is function OK No Is Image OK B Image Performance Troubleshooting Yes No Yes No Fault Found Is Audio OK Is Remote Control OK D Audio Troubleshooting E Remote Control Troubleshooting End No Yes No Yes ...

Page 35: ...No Yes Yes Yes Is Lamp lit No Yes End Check power cord input power voltage Supply AC Power Change DC DC No Change Thermal BD Change Ballast Change DC DC No Change Main BD Change Ballast No No Change Fan Module Can hear the sound of lamp ignition No No Change Thermal BD No Change Main BD Change DC DC No Yes Reassembly Lamp Module Replace Lamp Module No No ...

Page 36: ...No Change Engine Module Change DMD Board Yes No Yes Yes No No Color Adjust Procedure Note 1 Change M B No Change DMD CHIP Change Photo Sensor No Change M B No Have line bar Dot defect isn t compliant with the spec Yes Change DMD CHIP Yes Adjust frequency No Yes Adjust tracking No No Change M B No Change M B Have noise End No No Change DMD Board No Change DMD CHIP ...

Page 37: ...e Color Wheel Index 4 Press Left or Right button to adjust 4Note 1 It may need to be used when you replace Main Board or Optical Engine alone Does OSD show up Start Is KeyPad Board OK No Yes Is Remote Controller OK Yes Change Main Board Change Key Pad Board Can function be adjusted No Yes Yes No Change Battery No End Change Remote Controller No Is Keypad Board ok Change Main Board Yes No Change Ke...

Page 38: ...eshooting Can hear sound Start Sound is clear without noise Yes Yes Change Speaker Change Main Board End Change Spearker Change M B No No No No Start End Replace the battery No Change Remote Controller Yes No Change IR Board No Change Main Board Yes Yes Yes ...

Page 39: ...c S 4 d e m r a w d n a n i n u r e b d l u o h s 1 2 7 D P h c a e t n e m n g i l a d n a t s e t n o i t c n u f e r o f e B s n o i t i d n o c g n i w o l l o f h t i w s e t u n i m 0 3 t s a e l t a r o f p u e r u t a r e p m e t m o o r n I 1 e t i h W B G R s r o l o c y a l p s i d d e l c y c h t i W 2 s e d o m y a l p s i d d e l c y c h t i W 3 z H 0 7 V z H K 5 1 3 H 0 5 3 0 4 6 z ...

Page 40: ...0 0 8 5 7 9 6 4 A G V S 0 0 6 x 0 0 8 5 8 7 3 5 A G V S 8 6 7 x 4 2 0 1 4 3 4 5 5 3 A G X 8 6 7 x 4 2 0 1 0 6 4 8 4 A G X 8 6 7 x 4 2 0 1 0 7 5 6 5 A G X 8 6 7 x 4 2 0 1 5 7 0 0 6 A G X 8 6 7 x 4 2 0 1 5 8 7 8 6 A G X 0 8 4 x 0 4 6 6 6 6 6 8 9 4 3 3 1 C L C A M 0 8 4 x 0 4 6 8 6 6 6 5 3 3 1 I I C A M 4 2 6 x 2 3 8 5 5 4 7 5 2 7 9 4 6 1 C A M 8 6 7 x 4 2 0 1 5 7 4 2 0 6 9 1 C A M 0 7 8 x 2 5 1 1 6 ...

Page 41: ...8 4 x 0 4 6 2 7 9 7 3 A G V 0 8 4 x 0 4 6 5 7 5 7 3 A G V 0 8 4 x 0 4 6 5 8 3 3 4 A G V 0 0 4 x 0 2 7 0 7 5 1 3 A G V 0 0 4 x 0 2 7 5 8 9 7 3 A G V 0 0 6 x 0 0 8 6 5 2 5 3 A G V S 0 0 6 x 0 0 8 0 6 9 7 3 A G V S 0 0 6 x 0 0 8 2 7 1 8 4 A G V S 0 0 6 x 0 0 8 5 7 9 6 4 A G V S 0 0 6 x 0 0 8 5 8 7 3 5 A G V S 8 6 7 x 4 2 0 1 3 4 5 5 3 A G X 8 6 7 x 4 2 0 1 0 6 4 8 4 A G X 8 6 7 x 4 2 0 1 0 7 5 6 5 A ...

Page 42: ... c B G R h c a E l a m r o n Fi e r u g 6 3 4 y t i m r o f i n U n e e r c S r e k c i l F e t i h W l l u F c e p s e h t h t i w t n a i l p m o c e b d l u o h S Fi e r u g 6 5 h s i m e l B d a e D l e x i P e t i h W B G R e u l B k r a D 0 3 y a r G 0 8 1 h s i m e l b d a e d f o s r e b m u n e h T e h t h t i w t n a i l p m o c e b d l u o h s s l e x i p c e p s e r u g i F 9 3 6 y r a...

Page 43: ...Chapter 4 36 B Color Pattern Figure 5 Full White Pattern Figure 6 Blue 180 Pattern Figure 9 Boundary Frame Figure 10 Dark Pattern Figure 7 Gary 30 Pattern Figure 8 ...

Page 44: ... k c o l c l e x i p f o e s u d n a n o i t c n u F e s a h P k c o l C t c e l e s n e h T 2 o t e u l a v e h t t s u j d a o t y e k w o r r a t f e l r o t h g i r r e k c i l f o e d i v e z i m i n i m 4 s r o l o C e t i h W d n a B G R t s a r t n o C z H 5 8 8 6 7 4 2 0 1 l a n g i S t s e T s r o l o c e t i h W d n a B G R 6 1 r o 4 6 n r e t t a P t s e T n r e t t a P s e i t i s n e...

Page 45: ...s e h t n e h t t u B n o i t a c i f i c e p s e h t h t i w t n i a l p m o c e b o t y t i l i b i s s o p o t n r e t t a p t s e t l a r e n e g h t i w k c e h c o t e v a h l l i t s e w t n i a l p m o c s i s e d o m y r a d n o c e s y r e v e e r u s e k a m n o i t a c i f i c e p s h t i w 8 t e s e R y r o t c a F d e v a s l l a e s a r e o t e v a h e w p e t s C Q l a n i f r e t ...

Page 46: ...R AUTHORIZED SERVICE PROVIDERS your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines You might be able to access the website to obtain the latest spare parts information http aicsl acer com tw spl NOTE T...

Page 47: ...A MAIN BOARD EP755 FOR ACER PD720 55 721VH 001 N A PCBA THERMAL BOARD EZPRO 755 H55 FOR SUNON PCBA THERMAL BOARD EZPRO 755 H55 FOR SUNON 55 721VH 002 N A PCBA CONNECTOR AV BOARD PCBA CONNECTOR AV BOARD EP757 55 721VH 003 N A PCBA DMD BOARD PCBA DMD BOARD EP757 55 721VH 004 PCBA KEYPAD BOARD PCBA KEYPAD BOARD EzPro 755 55 720VH 006 PCBA SPEAKER BOARD PCBA SPEAKER BOARD EzPro 755 55 720VH 007 PCBA T...

Page 48: ...4PIN 2 0P W A 4PIN 2 0P 326 EZPRO 755 50 720VH 004 N A LVPS BALLASTPOWER CABLE W A 2PIN W A 2PIN 20 LVPS BALLAST POWER EZPRO 755 50 720VH 005 IR BACK W A 3P W A 3P 26 IR BACK EzPro 755 50 720VH 006 FFC CABLE 16P 0 5MM L 20CM CABLE FFC 16P 0 5MM L 20CM EP755 50 720VH 007 N A BALLAST TO LVPS CABLE W A 5PIN 1 0P W A 5PIN 1 0P 28 BALLAST TO LVPS EP755 50 720VH 008 FFC CABLE 10PIN PITCH 1 0 L 100MM CAB...

Page 49: ...OWER CORD 1830MM EUROPE CABLE POWER CORD 1830MM SP30 IS14 EUROPE 27 720VH 001 N A POWER CORD 1830MM EUR UK CABLE PWOER CORD 1830MM SP 023 IS14 EUR UK 27 720VH 003 N A POWER CORD 1800MM BLACK SWISS CABLE PWOER CORD AC 6FT BLACK SWITZERLAND FOR ACER 27 720VH 005 N A POWER CORD 1830MM US TWN CABLE POWER CORD 1830MM SP30 IS14 US TWN 27 720VH 002 N A POWER CORD 1800MM AUSTRALIA CABLE POWER CORD 1800MM ...

Page 50: ... EP755 FOR ACER 42 720VH 005 CONNECTOR COVER CLAMP CONNECTOR COVER CLAMP PC ABS EZPRO 755 42 720VH 006 SIDE VENT PC ABS SDIE VENT PC ABS EzPro 755 42 720VH 007 KEYPAD PC ABS HIGHT GLOSSY KEYPAD PC ABS HIGHT GLOSSY EP755 FOR ACER 42 720VH 008 N A LED LENS PC CLEAR SINGLE LED LENS PC CLEAR SINGLE EZPRO 755 42 720VH 009 N A LED LENS PC CLEAR TWIN LED LENS PC CLEAR TWIN EZPRO 755 42 720VH 010 Photo Pa...

Page 51: ...BRACKET SECC 0 8T BLLAST BRACKET SECC 0 8T EZPRO 755 33 720VH 002 N A POWER SOCKET BRACKET SECC 0 8T POWER SOCKET BRACKET SECC 0 8T EZPRO 755 33 720VH 003 N A DMD FAN GUIDE PLATE SECC 1T DMD FAN GUIDE PLATE SECC 1T EP757 33 721VH 001 N A MAIN BOARD EMI SHELTER AL H56 MAIN BOARD EMI SHELTER AL H56 33 721VH 002 N A ELEVATOR MODULE CS CT53A BUY ASSY ELEVATOR MODULE CS CT53A EP755 FOR ACER 42 721VH 00...

Page 52: ...01 N A ENGINE MODULE ASSY ENGINE MODULE EP755 PHILIPS RMA 57 721VH 001 N A LAMP MODULE LAMP MODULE EC 72101 001 FAN N A SUNON DC BRUSHLESS FAN GM1205PHV1 A 50 50 15MM SUNON DC BRUSHLESS FAN GM1205PHV1 A 50 50 15MM 23 720VH 001 N A MISC FAN SUNON GM1207PKV3 AR SUNON DC BRUSHLESS FAN GC054006VH 8 EP757 23 721VH 001 MISCELLANEOUS N A TAPE 3M J350 17 60MM TAPE 3M J350 17 60MM 47 310VH 003 N A INSULATO...

Page 53: ...EZPRO 47 721VH 003 N A CONNECTOR BOARD MYLAR FRPP 0 3T CONNECTOR BOARD MYLAR FRPP 0 3T EZPRO 755 47 721VH 004 N A INSULATOR FOR LVPS ERPP 0 5T INSULATOR FOR LVPS ERPP 0 5T EZPRO 757 47 721VH 005 N A SPACER SUPPORTS SPACER SUPPORTS SCB 5 47 721VH 006 SCREWS N A HEX I O 4 40UNC8H58L7 5 NI HEX I O 4 40UNC8H58L7 5NI 86 721VH 001 N A SCREW HEX L 60MM M3 8 EP755 SCREW HEX L 60MM M3 8 EP755 86 721VH 002 ...

Page 54: ... TAP M3 6 SCREW PAN TAP M3 6 86 721VH 012 N A SCREW FLAT TAP M4 5 11 NI SCREW FLAT TAP M4 5 11 NI 86 721VH 013 N A SCREW FLAT HEAD TAP M1 7 2 5 NI SCREW FLAT HEAD TAP M1 7 2 5 NI 86 520VH 012 N A WASHER FLAT 7 3 2 0 25T NYLON WITH ADHESIVE WASHER FLAT 7 3 2 0 25T NYLON WITH ADHESIVE 86 721VH 014 N A SCREW P F MECH M3 5 BLACK EZPRO 755 SCREW P F MECH M3 5 BLACK EZPRO 755 86 720VH 001 N A SCREW PAN ...

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