Acer AL1702 Service Manual

Service Manual for Acer AL1702 Monitor (38 pages)

Specifications:

4/4785-al1702.pdf file (01 Dec 2023)
  • Manufacturer: Acer
  • Category of Device: Monitor
  • Document: AL1702, File Type: PDF Service Manual
  • Updated: 01-12-2023
  • Count of Pages: 38
Download AL1702 Manual (38 pages)

Read PDF Document Online:

Data: UPD 1st December 2023

Acer AL1702 Monitor PDF Service Manual (Updated: Friday 1st of December 2023 01:04:54 PM)

Rating: 4.1 (rated by 12 users)

Compatible devices: AL502, V213H, XV270, AL1921, View 76c, DV555K, P791, Z321QU.

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Text Version of Acer AL1702 Monitor Manual (Summary of Contents)

(Ocr-Read of Acer AL1702 Document (Main Content), UPD: 01 December 2023)

  • 17, Page 15 AL1702 3. Checking the back light unit Is +12V supplied to inverter PWB ? (by the power board) OK NG Failure Point 1) Inverter cable disconnection. 2) Power board failure. Check the BKLT_EN signal of the rectangle input P301 pin 6 at TTL high level. OK NG Failure Point 1) printed wire broke…

  • 19, Acer AL1702 Page 17 AL1702 5. Abnormal OSM display adjust problem Check the input TTL level whether was changed when pressed function keys on the P308 pin3, 4, 5, 6. (normal is high level, when push buttom, generated low level plus) OK NG Failure Point 1) Function key wire disconnection. 2) Function key wir…

  • 8, Page 6 AL1702 3.5.3X302 crystal The X302 crystal is 11.0592MHz, support the operated clock to the MCU. 3.5.4Reset circuit The C396, R379, D316 is support reset signal to the MCU, then MCU have output hardware reset signal (HWRESET) to the scaler. 3.5.5I308 EEPROM The I308 is 24LC16 EE…

  • 10, Page 8 AL1702 Table 2 video mode Polarity Mode Resolution H-Freq (KHz) Band Width (MHz) H V 1 720x400 (70Hz) 31.469 28.322 - + 2 640x480 (59.94Hz) 31.469 25.175 - - 3 640x480 (66.67Hz) 35 30.24 - - 4 640x480 (72Hz) 37.861 31.5 - - 5 640x480 (75Hz) 37.5 31.5 - - 6 800x600 (56.25Hz) …

  • 23, Page 21 AL1702 Check the 5V is output from P301 pin1, 2 OK NG Failure Point 1) Power wire disconnection. 2) Power board is failure. Check the 5V is input to I302 pin3. OK NG Failure Point 1) Printed wire broke between P301 pin1. 2 and I302 pin3. 2) FB301, FB302 open. Check the 3.3V is output from I…

DOC-96e7c680:

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