background image

 

Feed-back Circuit 

R832
10K F

R819
3M

R846
1K J

R847
1K J

R825
442

R820
4.7K F

C845

(OPEN)

R827
442

C837

0.033U K

CN801

2062204102

1

1

2

2

CN802

2062204102

1

1

2

2

C814

5P D

D809

BAV99

A

J

K

R824
3M

R823
100K

C819

0.22U M

P07

D805
BAV70

A1

J

A2

C815

2700P J

.

.

.

T801

1J.26049.061   

1

8

6

7

4

3

C817

15P J

TP801

TP802

TP803

TP804

F2

F1

P08

 

Fig.2

 

        

Fig. 2 shows the feedback circuit consists of a lamp, R846, D809, R825, R827 and C837. 

With the lamp current through D809, a half sin-waveform voltage signal is produced. We may get the 
Maximum value through R825/R827/C837. 

After OZ9938 gets the feedback voltage signal from PIN5, the duty of the PWM driver outputs is 
decided.

 

 

 
 

 - 

51 

Содержание T201WA

Страница 1: ...007 5 17 Date 2007 5 17 Notice Notice For RO to input specific Legal Requirement in specific NS regarding to responsibility and liabilit For RO to input specific Legal Requirement in specific NS regar...

Страница 2: ...ification 5 3 2 Customer Acceptance 19 4 Disassembly Assembly 25 4 1 Exploded View 25 4 2 Disassembly Assembly 26 5 Level 1 Cosmetic Appearance Alignment Service 28 5 1 Software Firmware Upgrade Proce...

Страница 3: ...m diagnostics tests troubleshoot problems and align the BenQ product 1 1 Trademark The following terms are trademarks of BenQ Corporation BenQ Importance Only trained service personnel who are familia...

Страница 4: ...nd meets all government safety requirements 2 Ensure that other persons are safe while you are servicing the product 3 DO NOT perform any action that may cause a hazard to the customer or make the pro...

Страница 5: ...degrees min Analog interface with Scaling supported Yes With 15 pin D sub connector DVI interface with Scaling supported Yes With 24 pin DVI D connector Video interface with Scaling supported No Max...

Страница 6: ...ange 90 264VAC 4 8mA Depends on panel source CCFL Frequency 90 264VAC 40KHz 60KHz Depends on panel source Power cord Color Black Length 1500 50 mm 3 1 2 2 Signal interface Item Condition Spec OK N A R...

Страница 7: ...MDS RX2 13 Floating 2 TMDS RX2 14 5V Power 3 TMDS Ground 15 Ground 4 Floating 16 Hot Plug Detect 5 Floating 17 TMDS RX0 6 DDC Clock 18 TMDS RX0 7 DDC Data 19 TMDS Ground 8 Floating 20 Floating 9 TMDS...

Страница 8: ...ec 3 1 2 6 Support Timings Input Timing Actual Output Resolution Horizontal Vertical Dot Clock Actual display OK N A Remark 640 x 480 31 47 N 60 00 N 25 175 1680x1050 VGA 640 x 480 37 50 N 75 00 N 31...

Страница 9: ...H sync V sync input timing 3 1 3 Operational Functional Specification 3 1 3 1 Video performance All spec of monitor need to warm up at least 1hr Item Condition Spec OK N A Remark Resolution Any input...

Страница 10: ...n operating 20 60 Operating 10 90 Non condensing Humidity Non operating 10 90 Non condensing Operating 0 3048m 10 000ft Without packing Altitude Non operating 0 12 192m 40 000ft With packing 3 1 3 5 T...

Страница 11: ...n 3ms Velocity accelerate 75g 3 1 3 6 Electrostatic Discharge Requirements Item Condition Spec OK N A Remark Electrostatic Discharge IEC801 2 standard Contact 12KV Air 15KV 3 1 3 7 EMC Item Condition...

Страница 12: ...1KHz 1 Wrms CH 2 THD 1W 1W 1KHz 1 3 S N ratio 40dB Speaker Driver 1 Nominal impedance 1KHz 8 15 ohm 2 Rated input power 1 W CH 3 Frequency response SPL 10dB 500 20KHz 4 Output sound pressure level 1W...

Страница 13: ...LCD panel Item Unit Conditions Min Typ Max Remark degree degree Horizontal Right CR 10 Left 70 70 80 80 Viewing Angle degree degree Vertical Up CR 10 Down 70 70 80 80 Contrast ratio Normal Direction 7...

Страница 14: ...tem Condition Spec OK N A Remark Auto Adjust Auto Geometry Brightness Contrast Horizontal Position Vertical Position Pixel Clock Phase Color 9300K 7500K 6500K User Separate R G B adjustment OSD Positi...

Страница 15: ...x H x D mm 479 66 337 84 58mm Monitor with Stand W x H x D mm 479 66 400 42 186 9mm Carton Box outside L x W x H mm 567 493 131 Tilt and Swivel range Tilt 2 22 degree Swivel 0 degree 3 1 6 2 Weight It...

Страница 16: ...y of Products sets Every Pallet Quantity of pallet sets Every Container 20 736 Pallet A 64 Pallet A 10 Pallet B 48 Pallet B 2 40 1536 Pallet A 64 Pallet A 24 With pallet Pallet B Pallet B 20 X X X X 4...

Страница 17: ...VESA DDC 2B Version 1 3 PC Monitor USB External UL USA UL60950 3rd edition CSA Canada CAN CSA C22 2 No 60950 Nordic D N S F EN60950 FIMKO EN60950 CE Mark 73 23 EEC CB IEC60950 CB EN60950 TUV GS EN6095...

Страница 18: ...DNHW PTB German X Ray standard TUV Ergo ISO 13406 2 Ergonomics prEN50279 Appendix Physical Dimension Front View and Side view Fig 1 Physical Dimension Front View and Side view 18...

Страница 19: ...5 CLASSIFICATION OF DEFECTS The defects are grouped into the following classes Critical defect A critical defect is a defect that judgment and experience indicate is likely to result in hazardous or u...

Страница 20: ...appear with the same cause only the most serious defect must be taken into account Defects found in accessories packed with the product as connecting cables plugs adapters and the like and being insp...

Страница 21: ...Label on product Wrong or missing Major 3 6 Scratched or dirty but legible spec label Minor 3 7 GAP between LCD and front bezel is over 2 0 mm Major 3 8 Dot area discolor over 1mm dia in front or over...

Страница 22: ...or 5 2 Wrong parts broken component but safe Major 5 3 Foreign material Conductive Has potential to short circuit Major Non conductive Moveable Minor 5 4 Missing hardware component or screw stripped s...

Страница 23: ...o VESA VSIS Standard V1R1 Overshoot Undershoot 12 of step function voltage level over the full voltage range Refer to VESA VSIS Standard V1R1 3 2 13 3 Support Timings Input Timing Actual Output Resolu...

Страница 24: ...128 00 1280x1024 IBM1 1280x1024 80 00 P 75 00 P 135 00 1280x1024 VESA 1280x1024 81 18 N 76 16 N 135 09 1280x1024 SPARC2 1680x1050 75 60 162 1680x1050 VESA Note 3 P N stands for Positive Negative polar...

Страница 25: ...4 Disassembly Assembly 4 1 Exploded View 25...

Страница 26: ...4 2 Disassembly Assembly 26...

Страница 27: ...27...

Страница 28: ...re Firmware Upgrade Process 5 1 1 Hardware prepared a Print Board or not b I2CBoard Print Cord I2C Board And I2C Board Jump wire should follow J10 short J9 open J8 J7 J6 J5 3 and 2 pin short Connected...

Страница 29: ...2C BD into print port on PC directly 5 1 2 Software Prepare Please set up attached Genesis ISP software Operation sequence as following Connect to LCD Monitor PC Print port a Open the execute file and...

Страница 30: ...30 b click select Parallel...

Страница 31: ...c Modify Speed to 140000 Hz in Parallel item Click device finish 31...

Страница 32: ...d Follow the follow steps in turn link I2C BD power cable signal cable 32...

Страница 33: ...Please enter forcesa press power on switch or plug in AC power cord And software show command successful that is to say LCD link PC telecommunication ok 33...

Страница 34: ...34...

Страница 35: ...35 enter into file path batch c ISP spi_flash_isp_nvram_128_v14 txt and run program Until show command successful That is mean update FW OK...

Страница 36: ...2 Check the settings to following values Contrast 50 Brightness 90 Color Normal Language English Then turn off the monitor power 3 Turn on power enter user area 5 2 3 Color balance adjustment 1 Enter...

Страница 37: ...0 08 P 28 32 1280x1024 DOS 640x480 31 47 N 60 00 N 25 18 1280x1024 DOS 640x480 35 00 N 67 00 N 30 24 1280x1024 Macintosh 640x480 37 86 N 72 80 N 31 5 1280x1024 VESA 640x480 37 50 N 75 00 N 31 5 1280x1...

Страница 38: ...ontrast from MCU RAM C3 55 XX cksum Read Brightness from MCU RAM C3 56 XX cksum Read Red Gain from MCU RAM by color index C3 57 XX cksum Read Green Gain from MCU RAM by color index C3 58 XX cksum Read...

Страница 39: ...Gain data from EEPROM A3 4E XX cksum Read C3 Reddish R Gain data from EEPROM A3 5C XX cksum Read C3 Reddish G Gain data from EEPROM A3 5D XX cksum Read C3 Reddish B Gain data from EEPROM A3 5E XX cks...

Страница 40: ...ediately And store the index to EEPROM Set luminance sensor mode to Off C1 00 XX cksum Set luminance sensor mode to Bright C1 01 XX cksum Set luminance sensor mode to Moderate C1 02 XX cksum Set lumin...

Страница 41: ...European Data Other Value EEPROM Bank R W For Debug using only not for Production Line Write EEPROM directly Read EEPROM Bank 0 B0 Address XX cksum Read EEPROM Bank 1 B1 Address XX cksum Read EEPROM B...

Страница 42: ...WSXGA 1680 1050 60Hz and 16 7M colors Support Colors 6 bits HiFRC T201W offers DDC2BI and DDC CI functions to meet VESA standard for user adjusting from the software The T201W consists of a LCD modul...

Страница 43: ...Scaling DIGITAL VIDEO INPUT and OSD functions in the TSUMU5RHK IC Scaling IC is revolutionary scaling engine capable of expanding any source resolution to a highly uniform and sharp image combined wit...

Страница 44: ...is designed to inhibit electrical and magnetic interference for meeting FCC VDE VCCI standard requirements L601 300U 1 2 4 3 L4 L5 N3 L602 19MH 1 2 4 3 C603 2200P C602 0 22U C604 2200P t TR601 NTC 8O...

Страница 45: ...ff period the stored energy is delivered to the secondary of transformer R607 C607 and D601 is a voltage snubber circuit R615 is current sense resistor to control output power See Fig 4 C607 1000P K L...

Страница 46: ...0U 35V RC1820 1 2 R715 100 J R713 330 R714 4 7K ZD701 15V A K Q701 2SC1213A B E C C704 330U 35V RC1820 1 2 C707 1000U 16V 1 2 3 T601 350U 2 1 7 10 4 8 9 5 C709 1000U 10V 1 2 R703 10K C702 330U 35V RC1...

Страница 47: ...ent efficiency R613 1K R614 18K C607 1000P K L604 45 OHM L605 45 OHM L608 45 OHM R611 220 C609 1000P J R615 0 22 R610 18K C606 47U 50V 1 2 C611 47U 50V 1 2 ZD601 15V A K D605 1N4148 1 2 3 T601 350U 2...

Страница 48: ...two drive signals for most power conversion topologies while maintaining high efficiency operation The PWM controller provides a soft start operation current and voltage regulation over voltage and o...

Страница 49: ...DRV1 1 VDDA 2 TIMER 3 DIM 4 ISEN 5 VSEN 6 OVPT 7 NC1 8 NC2 9 ENA 10 LCT 11 SSTCMP 12 CT 13 GNDA 14 DRV2 15 PGND 16 R809 33K C820 0 047U K 5VA R811 3M F R812 34 8K F C825 4700P J C826 470P J C804 1U K...

Страница 50: ...C817 15P J F2 F1 C827 1U Z C801 330U 35V RC1820 1 2 Fig 1 Fig 1 the Q808 Q809 and T801 form a Push Pull configuration When Q808 turn on then Q809 turn off Q808 turn off then Q809 turn on The result in...

Страница 51: ...BAV70 A1 J A2 C815 2700P J T801 1J 26049 061 1 8 6 7 4 3 C817 15P J TP801 TP802 TP803 TP804 F2 F1 P08 Fig 2 Fig 2 shows the feedback circuit consists of a lamp R846 D809 R825 R827 and C837 With the la...

Страница 52: ...ereo ClassAB BTL output amplifiers with DC volume control The devices are designed for use in TV and monitor Use 5V from power board and connect speaker drivers to offer 1W CH 2 DC Power Input To supp...

Страница 53: ...6 2 TROUBLE SHOOTING GUIDE 6 2 1 No Display or display is unstable Interface Board 53...

Страница 54: ...6 2 2 BUTTON function Control Board 6 2 3 OSD function 54...

Страница 55: ...6 2 4 No power troubleshooting 55...

Страница 56: ...L2H12 002 CVR AC SOCKET ABS 2007FPB 5F LU1VP 001 LCDM 20W M201SP01 V0 AUO 5K L2M08 501 CABLE SIGNAL 3COAX OD_5 0 1 5M 6K 07N01 031 ASSY BZL ABS T201WA 8110C 6K 07N09 001 ASSY RC ABS 7054A SP01 DSUB 6K...

Страница 57: ...1 11 8F XA213 8R0 SCRW TAP FLAT PT M2 5 8L ZN Plastic 4 0 0 5 2 0 0 05 1 12 8F WA314 8R0 SCRW TAP CAP M3 1 34P 8L B ZN PLASTIC 5 0 1 0 2 35 0 05 2 13 8F XA524 6R0 SCRW TAP FLT M3 6L NI PLASTIC 4 5 0 5...

Страница 58: ...W TAP PAN M4 8L NI PLASTIC 7 5 0 5 3 4 0 05 2 8 8F 5A554 5R0 SCRW MACH FLAT M3 0 5P 5L NI N METAL Side mount 3 0 6 Other 4 0 6 M3 0 5 2 SCREW Q TYPE AND POSITION REFERRED TO C328 NOTES 1 A STANDARD SC...

Страница 59: ...59...

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