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Buffalo BU1715 Service Manual

Buffalo BU1715 Manual Online:

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Buffalo BU1715 User Manual
Buffalo BU1715 User Guide
Buffalo BU1715 Online Manual

Text of Buffalo BU1715 User Guide:

  • Buffalo BU1715, Buffalo BU1715 23 C309 0.047uF 4/2/2004-Add R329,R330 R303 33 1/16W   R313 2.2K 1/16W   VSYNC 4 PC5V FB301 0 1/16W   4/2/2004-Add D324 Solution VCC5V D301 BAV99 3 1 2 RXD 6 C303 NC R302 33 1/16W   D318 TZMC5V6-GS08 C313 0.1uF PC5V FB302 0 1/16W   HSYNC 4 R327 75 1/16W   INPUT B TSU16AK C 36Wednesday, October 06, 2004 Title Size Document Number Rev Date: Sheet of C308 0.047uF C311 47pF VCC5V D317 TZMC5V6-GS08 D324 BAV99/NC 3 1 2 C304 0.047uF ST_DET1 6 R307 68 1/16W   CLK_DDC FB304 430 OHM C310 0.047uF D319 TZMC5V6-GS08 D304 BAV70 3 1 2 D320 TZMC5V6-GS08 C307 0.001uF C301 N

  • Buffalo BU1715, Buffalo BU1715 2 Table of Contents Table of Contents ------------------------------------------------------------------------------------------------------------------ 02 Revision List ---------------------------------------------------------------------------------------------------------------------03 1. Monitor Specification --------------------------------------------------------------------------

  • Buffalo BU1715 55 Q201 57G 760 5A DTC 144WN3/S SOT-23 1 PCS Q203 57G 763 3B AM9435P.T1-PF SO-8 1 PCS Q204 57G 763 3B AM9435P.T1-PF SO-8 1 PCS R929 61L0603000 RST SM 0603 JUMP MAX 0R 1 PCS R931 61L0603102 RST SM 0603 RC0603 1K P 1 PCS R216 61L0603221 RST SM 0603 RC0603

  • Buffalo BU1715, Buffalo BU1715 18 5.3 Electrical Block Diagram 5.3.1 Scaler Board Block Diagram MCU MTV512MV ( U601 ) Scalar TSU16AK PQFP-128 (Include ADC, OSD) (U401) EEPROM M24C16 (U602) D-Sub Connector (CN301) EEPROM M24C02 (U301) H sync V sync RGB DB15_SDA DB15 _ SCL EPR_SDA EPR_SCL LCD Interface (CN503) OSD Control KEY PAD 20MHz CRYSTAL 14.318MHz CRYSTAL

  • Buffalo BU1715, Buffalo BU1715 26 LED_O R624 470 1/16W   RXD 3 DDC_WP 3 R610 220 1/16W   R609 100 1/16W   VCPU2 R601 10K 1/16W   DVI_DET 3 RN601 10K 1/16W   1 2 3 4 8 7 6 5 CSZ 4 R626 10K 1/16W R607 10K 1/16W   OUT-L- LED_O Volume 4 INT4 onPANEL_5V/3.3V 2 C608 0.001uF C604 22pF R621 470 1/16W   DDC_CLK 3 FB602 600 OHM R603 10K 1/16W   SCL 4 U603 MAX810STR (NC) 1 23 GND RSTVCC AD2 4 Canel R640 R642 DDC_DAT 3

  • Buffalo BU1715, Buffalo BU1715 41 8.2.3 Power/Inverter Board 1.) No power Check to CN102 pin12 = 12V Check Interface board OK Check AC line volt 120V or 220V NG Change F901; check BD901, Q903, and IC901 Check the voltage of C905(+) Check R906, R907, IC901 Check start voltage for the pin3 of IC901 NG Check the auxiliary voltage is smaller than 20V 1) Check IC902, IC903, ZD901 2) Check Q901, Q902…OVP circuit OK OK OK NG NG Check D910, D912, IC902, IC903

  • Buffalo BU1715, Buffalo BU1715 9 4. Input Specification 4.1 Input Signal Connector PIN NO. Description PIN NO. Description 1. Red 9. +5V 2. Green 10. Detect Cable 3. Blue 11. NC 4. Ground 12. DDC-Serial Data 5. Ground 13. H-Sync 6. R-Ground 14. V-Sync 7. G-Ground 15. DDC-Serial Clock 8. B-Ground VGA Connector Layout 15 6 10 11 15

  • Buffalo BU1715, Buffalo BU1715 45 10. EDID Content 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 0: 00 FF FF FF FF FF FF 00 0A A6 15 17 01 01 01 01 16: 1E 0E 01 03 08 22 1B 78 EA FD 59 A5 53 4A 9D 24 32: 14 4F 56 BF EF 80 61 4C 81 80 71 4F 81 40 81 8A 48: 81 4C 01 01 01 01 30 2A 00 98 51 00 2A 40 30 70 64: 13 00 51 0E 11 00 00 1E D5 09 80 A0 20 5E 63 10 80: 10 60 52 08 51 0E 11 00 00 1A 00 00 00 FD 00 38 96: 4B 1F 53 0E 00 0A 20 20 20 20 20 20 00 00 00 FC 112: 00 46 54 44 2D 47 37 33 31 41 53 0A 20 20 00 42 Note: Byte 0C, 0D, 0E, 0F means Serial No. Byte 10, 11 means manufacture time. Byte 7F

  • Buffalo BU1715, Buffalo BU1715 11 4.3 Power Supply Requirement NO. Parameter Description 1 A/C Line voltage range 100 V ~ 240 V 2 A/C Line frequency range 50 ± 3Hz, 60 ± 3Hz 3 Input Voltage transients 280 volts AC for 10 sec @40℃ 4 Current 1.5A max at 100V; 0.8A max at 240 V 5 Peak surge current < 60A peak at 240 VAC and cold starting < 30A peak at 120VAC and cold starting 6 Leakage current < 3.5mA 7 Power li

  • Buffalo BU1715, Buffalo BU1715 6 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. - The power cord should be connected. - Connect the video cable from the monitor to the video card. -Press the power button to turn on the monito

  • Buffalo BU1715, Buffalo BU1715 28 R215 2.2K 1/16W   C219 1uF/25V R239 12K   C221 0.47uF/ 63V C216 22pF/6KV C222 0.47uF/ 63V D210 1N4148 R238 12K   TP6 HVL 1 C212 1uF/25V C225 1uF/25V C217 22pF/6KV D203 RLZ11B C213 0.22uF/ 160V Q210 2SC5706 1 23 R237 620 R209 4.7K 1/16W   D202 SR24 C214 0.22uF/ 160V R217 220 1/16W   R243 1K 1/4W   R235 910 1/4W   R233 1K   R228 1.5K   R244 1K 1/4W   R202 10K   TP1 HVO 1 Q207 MPS

  • Buffalo BU1715, Buffalo BU1715 10 4.2 Factory Present Display Modes VESA MODES Horizontal Vertical Mode Resolution Total Nominal Frequency +/- 0.5kHz Sync Polarity Nominal Freq. +/- 1 Hz Sync Polarity Nominal Pixel Clock (MHz) 640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175 640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500 VGA 640x480@75Hz 840 x 500 37.500 N 75.00 N 31.500 800x600@56Hz 1024 x 625 35.156 N/P 56.250 N/P 36.000 800x600@60Hz

  • Buffalo BU1715, Buffalo BU1715 24 C423 0.1uF R402 100 1/16W   R403 390 1/16W   RIN3 AD3 6 PA2 PA8 C426 0.1uF C418 0.1uF PA7 C420 0.1uF PA4 CSZ6 G+3 3-WIRE + C414 10uF/16V + C427 10uF/16V VDD VDD C406 0.1uF FB402 600 OHM VPLL PA1 C421 0.1uF C415 0.1uF PB5 R401 NC VCC1.82 4.7K VAA2 VPLL VCC3.3 VAA42 C411 0.1uF SCL6 VAA12 PB6 VDVI R407 10K 1/16W   VAA32 PA3 C407 0.1uF + C422 10uF/16V VSYNC3 VAA4 C402 22pF VCC3.32 SDA6 C410 0.1uF B-3 PA5 SCALER B TSU16AK B 46Wednesday, October 06, 2004 Title Size Document Number Rev Date: Sheet of VDPLL FB406 600 OHM + C424 10uF/16V VCC5V CLK+3 PB9 B+3 R+3 PB3 AD2 6 C425 0.1uF C42

  • Buffalo BU1715, Buffalo BU1715 25 PA2 LVA2M RXE3- PB7 LVA1P RXO2- LVB1M PA0 PB1 LVA0M LVB0M LVA2P LVB1M VLCD 2 LVB1P RXE2+ LVB3M PB9 LVB2P LVA1P RXOC- PB0 LVB2P LVACKP RXO2+ + C509 22uF/16V LVACKP LVA2P LVA1M PA7 PA8 CN503 CONN 2 4 6 8 10 12 14 16 18 20 22 24 1 3 5 7 9 11 13 15 17 19 21 23 LVBCKP RXO0- LVA3M PB5 RXE0+ RXO1+ C510 0.1uF LVACKM RXO1- RXE3+ RXO3- LVA2M PB4 LVB1P RXE0- RXEC- RXE1- PB[0..9]4 LVA0M LVBCKM LVA3M RXE1+ RXEC+ LVBCKM RXO3+ LVB2M R502

  • Buffalo BU1715, Buffalo BU1715 56 C203 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C209 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C210 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C211 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C212 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C219 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C220 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C224 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C225 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS D203 93G 39S 3 T BZT52-C11

  • Buffalo BU1715 44 24. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2 c. Adjust sRGB (6500 0 K) color-temperature 1. Switch the chroma-7120 to RGB-mode (with press “MODE” button) 2. Switch the MEM.channel to Channel 01 (with up or down arrow on chroma 7120)

  • Buffalo BU1715, Buffalo BU1715 38 8.2 Trouble Shooting 8.2.1 Main Board 1.No Screen Appear Note: 1. If replace “MAIN-BOARD”, Please re-do “DDC-content” programmed & “White-Balance”. 2. If replace “Power Board” only, Please re-do “ White-Balance” Led Green Measured CN201 pin5/6 = 12 V? Measured CN201 pin 9/10= 5V? Measured U202 pin 2= 3.3V? Check Correspondent component. Is there any shortage or cold solder? Yes.

  • Buffalo BU1715, Buffalo BU1715 42 2.) W / LED, No Backlight Change Q201 or Q202 Check C201 (+) =12V NG OK Check D201/Q209/Q210 Check ON/OFF signal Check Interface board NG OK Check U201 pin9=12V voltage of C905(+) NG OK Check the pin1 of U201 have saw tooth wave NG OK Change U201 Check D201 (-), D202 (-) has the output of square wave at short time. NG OK Check Q205/Q207/Q203/D201 or Q206/Q208/Q204/D202 Check the resonant wave of pin2 & pin5 for PT201/PT202 NG Check the output of PT201/PT202 Check Q209/Q210/C213 o

  • Buffalo BU1715, Buffalo BU1715 54 C904 63G 107474 HS 0.47UF +-20% 275VAC 1 PCS C906 65G 2K152 5E6921 1500 PF 10% 2KV Y5P 1 PCS C913 65G306M4722B2 Y1 4700PF +-20% 250VAC 1 PCS C215 65L 3J2206ET 22PF 5% 3KV TDK 1 PCS C216 65L 3J2206ET 22PF 5% 3KV TDK 1 PCS C217 65L 3J2206ET 22PF 5% 3KV TDK 1 PCS C218 65L 3J2206ET 22PF 5% 3KV TDK 1 PCS C901 65L305M2222E3 2200PF+-20%400VAC BY TD 1 PCS C902 65L305M2222E3 2200PF+-20%400VAC BY TD 1 PCS C905 67G215S10115N PAG450VB100-M-L18*35.5M 1 PCS C201 67G215V102 3N GP KY10VB

  • Buffalo BU1715, Buffalo BU1715 52 C510 65G0603104 32 CHIP 0.1UF 50V X7R 1 PCS C601 65G0603104 32 CHIP 0.1UF 50V X7R 1 PCS C612 65G0603104 32 CHIP 0.1UF 50V X7R 1 PCS C613 65G0603104 32 CHIP 0.1UF 50V X7R 1 PCS C618 65G0603104 32 CHIP 0.1UF 50V X7R 1 PCS C619 65G0603104 32 CHIP 0.1UF 50V X7R 1 PCS C403 65G0603220 31 CER1 0603 NP0 50V 22P P 1 PCS C602 65G0603220 31 CER1 0603 NP0 50V 22P P 1 PCS C312 65G0603221 31 CER1 0603 NP0 50V 220P 1 PCS C605 65G0603224 17 CAP: CER 0.22UF-20%-80%

  • Buffalo BU1715, Buffalo BU1715 47 Q1G 330 8120 SCREW 3X8mm 2 PCS Q1G 330 10120 SCREW FOR FP/RC 1 PCS Q1G 330 12120 SCREW 3X12mm 2 PCS 705L780KB34 65 BEZEL ASS'Y 1 PCS 750GLU70G01 1 AU 17" V5 (V1) PANEL 1 PCS AM1G1740 10120 SCREW (M4*8) 4 PCS AUPC780MCSMT AUDIO BOARD FOR SMT 1 PCS 12G6051 1 RUBBER FOOOT 1 PCS CN202 33G802414C H 2*7PIN DUAL ROW RIGHT A 1 PCS U201 56G 616 1 TDA7496 1 PCS CN204 95G8014 3503 WIRE HARNESS 1 PCS AUPC780MCAI AUDIO BOARD FOR AI 1 PCS R207 61L0603102 RST SM 0603 R

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