[Help] Tìm Sơ đồ Cáp VGA | VNAV - Mạng Nghe Nhìn Việt Nam

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VNAV - Mạng Nghe nhìn Việt nam Home Forums > Thiết bị Âm thanh - Audio > Dành cho thành viên mới > [Help] Tìm sơ đồ cáp VGA

Discussion in 'Dành cho thành viên mới' started by phuongmitec, 9/6/11.

phuongmitec Advanced Member
Joined: 6/8/09 Messages: 1.529 Likes Received: 5 Location: Kim Mã - HN
Em đang tìm sơ đồ chân cho cáp VGA như hình nhưng đầu cắm vào Mainboard là loại 15 chân (trong hình là loại 9 chân). Bác nào biết chỉ em với. Cảm ơn các bác trước
YM: phuongmitec phuongmitec, 9/6/11 #1 Tags:
mtbc Advanced Member
Joined: 11/9/06 Messages: 6.795 Likes Received: 2.284 Location: Q3, Saigon
Đây nè anh Phương ơi: http://pinouts.ru/Video/VGA15_pinout.shtml VGA connector pinout: Pin Name Dir Description 1 RED Red Video (75 ohm, 0.7 V p-p) 2 GREEN Green Video (75 ohm, 0.7 V p-p) 3 BLUE Blue Video (75 ohm, 0.7 V p-p) 4 ID2 Monitor ID Bit 2 5 GND Ground 6 RGND Red Ground 7 GGND Green Ground 8 BGND Blue Ground 9 KEY - Key (No pin) 10 SGND Sync Ground 11 ID0 Monitor ID Bit 0 12 ID1 or SDA Monitor ID Bit 1 13 HSYNC or CSYNC Horizontal Sync (or Composite Sync) 14 VSYNC Vertical Sync 15 ID3 or SCL Monitor ID Bit 3 Note: Direction is Computer relative Monitor. All VGA pinout signals except R, G, B are TTL level signals. VGA pinout : monitor ID detection pin assignments 4 11 12 ID2 ID0 ID1 n/c n/c n/c no monitor n/c n/c GND Mono monitor which does not support 1024x768 n/c GND n/c Color monitor which does not support 1024x768 GND GND n/c Color monitor which supports 1024x768 GND means connected to ground n/c means that the pin is not connected anywhere This monitor type detection is becoming more and more obsolete nowadays. New VGA plug-and-play monitors communicate with the computer according to VESA DDC standard. VGA VESA DDC VESA Display Data Channel is a method for integrating digital interface to VGA connector so as to enable the monitor and graphics card to communicate. There are two different levels of DDC: DDC1 and DDC2. VGA DDC1 pinout details DDC1 allows the monitor to tell its parameters to the computer. The following VGA card connector pins have to be changed to allow DDC1 functions: VGA pin new function 9 Optional +5V output from graphics card 12 Data from display 14 Standard vertical sync signal which works also as data clock 15 Monitor ID3 When the VGA graphics card detects data on data-line it starts to read the data coming from the monitor synchronous to vertical sync pulse. Vertical sync pulse frequency can be increased up to 25 KHz for the time of the data transfer if a DDC1 compliant monitor is found (be sure not to send those high frequencies to non DDC1 monitors!). VGA DDC2 pinout details DDC2 allows bidirectional communication: monitor can tell its parameters and the computer can adjust monitor settings. The bidirectional data bus is a synchronous data bus similar to Access Bus and is based on I2C technology. The following pins on VGA pinout have to be changed to enable DDC2 to work: VGA pin new function 9 Optional +5V output from graphics card 12 Bidirectional data line (SDA) 15 Data clock (SCLK) The signals in the data bus are standard I2C signals. The computer provides 15 kohm pullup for the SDA and SCLK lines. Monitor must provide 47 kohm pull-up on SCLK line.
"No problem can be solved from the same level of consciousness that created it." - Albert Einstein Speaker: Diapason Adamantes+Dynaudio Stand 6 | Amp: Renolabs KT150 | Streamer/DAC: Renolabs | PC/Soft: HQPlayer+Win 11 22H2 optimized | Cables: Nordost SPM speaker and interconnects, Frey 2 bridge | Power: Nordost Heimdall 2 x3, Cowking PS-3000 | Room: ASC panel mtbc, 9/6/11 #2
phuongmitec Advanced Member
Joined: 6/8/09 Messages: 1.529 Likes Received: 5 Location: Kim Mã - HN
Chưa hiểu lắm vẽ hộ tớ cái Tớ định DIY cái cáp đó dùng VGA Onboard (Jack cắm VGA trên Main nó lại 15 chân) vì máy chủ nó chết card VGA
YM: phuongmitec phuongmitec, 9/6/11 #3