Product Service Manual - Level 1~2. Version: 1st Date:

Transcription

1 вепо, Applicable Country & Regions: Europe Service Manual for BenQ: LCD E (D-SUB + HDMI + Audio + USB + S-Video+ YPbPr + SPDIF + SCART + Common Interface + Black Chassis Colors) P/N: 9H.V1875.TBE Product Service Manual - Level 1~2 Version: 1st Date: Notice: For RO to input specific Legal Requirement in specific NS regarding to responsibility and liability statements. Please check BenQ s esupport web site, to ensure that you have the most recent version of this manual. First Edition (Dec. 2010) Copyright BenQ Corporation All Right Reserved.

2 Block Diagram Main Board 51

3 Power Board 16V 5V Converter Board 52

4 Schematic Diagram Main Board 715G3988M0D001005K

5 54

6 1О-ГУЧ 2 ^ w n 2 120R/3C00mA 1^VVV^ 2 120R/3000mA Г 12" 0 0mA2 1O-YY-i 2 120R/33C0mA 1 2 1i'YYY' 2 " - FS f ' " 1'W Y ' 2 GL r k - Gk pr n t - 55

7 3,4,6,8,9,10,12,13,14 DV33 Power & Ground AVDD 12_APLL AVDD12_ADCPLL AVDD12_SYSPLL AVDD12_TVDPLL AD15 AVDD1V25 PLL C4001 " 06V- 100N 16V 102 SMD/0402 C4002 C4003 C4 004 C N 16V 100N 16V 100N 16V 100N 16V MD/0402 SMD/0402 SMD/0402 SMD/0402 SM DV11 100N 16V SMD/ N 16V SMD/ N 16V SMD/ N 16V SMD/ N 16V SMD/ N 16V SMD/ R4004 I 47K1/16W 3,4,6,7,12,14 AV12 100N 16V SMD/0402 4,6 M_AOLRCK /< 6 M_AOBCK Л 6 M_A0SDATA0?< 6.11 M_SPDIF_Out?< 9 M_OPWM1 Л 1.12 M_OPCTRL3 << 100N 16V SMD/0402 M_AOLRCK M_AOBCK DV33 R Kl/yew. M SPDIF Out M AOSDATAQ C N 16V R K1/16W R K1/16W MT5363LIMG M_OPWM1 M OPCTRL3 T P V ( Top Victory Electronics Co., Ltd. ) OEM MODEL Size Custom В Ж 0 G3988-M0B TPV MODEL Rev 1 й Key Compcment 04. MT5362 BYPASS/TRAP. PCB NAME 715G3988M0B m Date Friday, September 10, 2010 Sheet 4 of 14 56

8 JVH г - т 11 VG;^fe_:,n Af 1,, ж. $ z Ж Ш- 13 ж. Ш - 1 hp-os-r1 10 ICJRTI-OS-R.. _ C 2 AVSDSD3_CVCVDVBASC AVSDSD33_VDAC g r w " _ Ц j E 8 E CVBSY0YC CN0101 CVBS0N T ^ s s. T ^ C ZZ 11IC0 4 CV:ERp_ny 1 ж I a s r 10 PYB00P 10 CPORM0P0 11YOY1 5SJR1/10W1. TNS55,a " FS_VDAC SPOYBY0P0«vdjc_out2 v.d /F IR0? «Sr - H P й Ж С II SOg 11GRCPOM = W 101! c ' L r^ RS M tuner Data TUna^rc_clk RF AGC i OP cgp RP S FSNESVtA 5 ГаУс_1 4 rf agct.,annelcvcio:on/off^8 ;:: 13 AMP_MU TE,2 E - D T 5,1 M-IND^O, 4,5 M_AOLSBRCDCAKTKA0 M 57

9 "8 - MT5363LI MG C4104 C4105 ^ ^ ^ ^ ^ ^ ^ C4118 ^ ^ C4119 ^ ^ C4120 Т с<юи 16T 1C0N16VT 100N16VT 100N16VT 100N16VT 100N16VT 100N16VT 100N16V 10U ^----C4116 ^ ^^14111 ^ ^ C4111 И11, C4122 ^S ^P. C4121 ^ p^ C4123 ^ P^ i ^ P^ C4124 ^ ^ 1C ^ ^ P C V 1C0N16V 1uF16V 1uF 16V 100N16V 100N16V 100N16V ' 100N16V 1 ^ ^ ^ = C4114 ^ = C4112 ^ C4115 ^ C4103 ^ = C4127 ^ = C4128 ^ = C412S J 100N 16^ 10QN16^ 10QN. ф ос, ^ ^ J w 16V 58

10

11 ,11,12,13,14 *5V_SW S33F I I 14 BL_DIMMING 2 STAND_BY - 5 M_OPWM1 -! USB:PWR_Ocp$ $ i,,!35 HLEP_DoFr* 13 HP_AMP_MUTE - MCI OUTCLK ~ r CI OUTCLK V T P V ( Top Victory Electronics Co., Ltd. ) 38. MT8295/CI Friday, September 10, G3988M0B

12 68KOHM1/16W*I-5 SCART1 R In 15PF50V N SCART1 L In SCARTi1_0ut_^_ - 100K1/16 "ihi L SCART1 LEFT 330 OHM. N1^P0RT N?L DRV603PWR S1ART1 Out R II II 33K1I1BW 00K1/1SW T VP0RT С.111У 68K0HM1/16 -I- S1ART1 RIGHT i0hk»s^ I ^- 4-^ ^. X 1'075 :/v=ort SCT1 FS IN, - 51K U1S.5% l VP0RT T PV ( Top Vctory Electronics 1 Я Я Я в в avccmpoialt 09. S1ART1 61

13 I i-t t p=t t- UART 0?i:HLow i ~ T -n-v c * T p Wj С T"" VGA_PLUGPWR 80OM*3 3!ЭТЬ : TZ Р Й ; gl: а ' V

14

15 64

16

17 66

18 Power Board Adapter 715G3973P0BW320030

19 Converter 715G3977P L T P V ( Top Victory Electronics Co., Ltd. ) OEM MODE1 Size Custom й В Ж й 0 TPV MODEL Rev A Key Component 01.CONVERTER PCBNAME 715G3977:P02:000:0040 Date Friday, November 12, 2010 Sheet 1 of 1 m ODM MODEL 68

20 Key Board 715G4516K S T P V ( Top Victory Electronics Co. OEM MODEL G4516-K0C- J1.CIRCUI I TuesOay, N ber G4516K0C

21 IR Board 715G4517R S T P V ( Top Victory Elactnonics Co., Ltd. ) OEM MODEL Siza Я Я Я в в IR BOARD G4517-R0C-X-X TPV MODEL Rav C Key Component 00. Main PCB NAME 715G4517-R0C Data Friday, Dacamban 17, 2010 Shaat 1 of 1 m 70

22 Troubleshooting Frequently asked questions (FAQ) < D The image is blurred: O '" Read the instructions on the link "A djusting the Screen R esolution" on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions. Ф How do you use a VGA extension cable? Remove the extension cable for the test. Is the image now in focus? If not, optimize the image by working through the instructions in the "A djusting the refresh rate" section on the link "A djusting the Screen Resolution". It is normal for blurring to occur due to conduction losses in extension cables. You can minimize these losses by using an extension cable with better conduction quality or with a built-in booster. <z> Does the blurring only o ccur at resolutions low er than the native (m axim um ) resolution? О - Read the instructions on the link "A dju sting the Screen R esolution" on the CD. Select the native resolution. Pixel errors can be seen: О - One of several pixels is permanently black, one or more pixels are permanently white, one or more pixels are permanently red, green, blue or another color. Clean the LCD screen. Cycle power on-off. These pixels are permanently on or off and that is a natural defect occurs in LCD technology. Ф The image has a fa u lty coloration: O '" It has a yellow, blue or pink appearance. Select MENU > PICTURE > Color > Reset Color, and then choose YES in the Caution message box to reset the color settings to the factory defaults. If the image is still not correct and the OSD also has faulty coloration, this means one of the three primary colors is missing in the signal input. Now check the signal cable connectors. If any pin is bent or broken off, please contact your dealer to get necessary support. No image can be seen: Is the prompt on the display illuminated in green? If the LED is illuminated in green and there is a message Out of Range on the screen, this means you are using a display mode that this monitor does not support, please change the setting to one of the supported mode. Please read the Preset d isplay m odes section from the link "A djusting the Screen Resolution". Ф Faint shadow from the sta tic image displayed is visible on the screen: C T Activate the power management function to let your computer and monitor go into a low power "sleep" mode when not actively in use. Use a screensaver to prevent the occurrence of image retention. 71

23 ф Is the prom pt on the display illum inated in orange? О - If the LED is illuminated in orange, the power management mode is active. Press any button on the computer keyboard or move the mouse. If that does not help, check the signal cable connectors. If any pin is bent or broken off, please contact your dealer to get necessary support. Ф Is the prom pt on the display not illum inated at all? О - Check the power supply mains socket, the external power supply and the mains switch. Ф The image is distorted, flashes or flickers: O '" Read the instructions on the link "A djusting the Screen R esolution" on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions. Ф You are running the m onitor at its native resolution, but the image is s till distorted. O '" Images from different input sources may appear distorted or stretched on the monitor running at its native resolution. To have the optimal display performance of each type of input sources, you can use the "Display Mode" function to set a proper aspect ratio for the input sources. Ф The image is displaced in one direction: О - Read the instructions on the link "A djusting the Screen R esolution" on the CD, and then select the correct resolution, refresh rate and make adjustments based on these instructions. Ф The OSD co n tro ls are inaccessible: t T To unlock the OSD controls when the OSD is preset to be locked, press and hold the MENU key for 15 seconds to enter the OSD Lock option and make changes. Alternatively, you may use "^ o r ^ keys to select NO in the OSD Lock submenu from the OSD Settings menu (under SYSTEM), and all OSD controls will be accessible. If your problems remain after checking this manual, please contact your place of purchase or us at: Support@BenQ.com 72

24 No Power 73

25 No Video 74

26 DIM 75

27 Color is not optimal 76

28 PCB LAYOUT Main Board 715G3988M0D001005K 77

29 хгоо-гоо-аом-88б эегт 78

30 79

31 80

32 Power Board Adapter 715G3973P0BW

33 82

34 83

35 Converter 715G3977P L 84

36 Key Board 715G4516K S 85

37 IR Board 715G4517R S ( ) CO CO C O 86