Thursday, August 02, 2012

SANYO - AVM-2751S SERVICE MODE AND ADJUSTMENT PROCEDURE



TO ENTER SERVICE MODE

  • While pressing the "Menu" key, reconnect the AC power cord.
  • Service mode screen will be displayed as below.
_________________________________________________________________________________


NO                                                                                                          DATA
xx              OPT                                xxx                                              xxxxxxxx
_________________________________________________________________________________

xx => Item Number
OPT => Title.
xxxx => Decimal Data.
xxxxxxxx => 8 Bit Binary Data.
  • Use [Up] or [Dn] key to select desired service menu to adjust.  
  • Use (=) or (-) key to adjust the data value.
  • Press "Menu" key to turn Off the Service Menu Display and to 'Exit" from service mode.
  • After replacement of EEPROM IC (IC802), check the following items and data values.
  • 03 => HP => 11.
  • 04 => VS => 64
  • 15 => RB => 0
  • 16 => GB => 0
  • 17 => BB => 0
  • 18 => RD => 64
  • 19 => GD => 8
  • 20 => BD => 64
  • 42 => RAD => 20.
  • 45 => FL => 15  
When EEPROM is replaced, the CPU [IC801] will automatically write the initial reference data in to EEPROM [IC802] for basic TV operation.  How ever the bus data should be checked and some bus data should be set up before attempting the service adjustments.
  1. Disconnect the AC power cord [AC120V line].
  2. While pressing 'Menu' key, reconnect the AC power cord,  The Service Menu will be displayed.Select the following items, and by using Up or Dn keys, adjust the data values given against each item.
  3.  03.  HP => 8
  4. 05. VPO => 25
  5. 07. V-LIN => 15
  6. 10. VSC => 13.
  7. 14. VC => 7
  8. 21. SBI => 54
  9. 24. FLS => 1
  10. 28. PRE => 3
  11. 29. WP => 2
  12. 32. BSG => 2
  13. 34. DCR => 1.
  14. 37. AF => 1.
  15. 41. RYA => 2
  16. 55. STI => 19.
  17. 56. SSH => 8.
  18. 57. OPT => 0
  19. 58. OP-2 => 98.
  20. 59. HR => 20.
  21. 60. ATT => 7.
  22. 63. SBO => 2.
  23. Press "Menu' key to come out from service mode.