Korg USA Service Bulletin PA800 LCD Module and LCD Interface Board Replacement Notes Various LCD modules and LCD Interface Boards have been used during the production of the PA800. Compatibility issues may arise when mixing different module and board types. Use the information in this document to select the correct replacement parts to avoid compatibility issues. When replacing the LCD Module The current replacement display module is part # LCD0001008. The LCD0001008 has been used in production since serial # 6022177. Older display models are no longer available. If this module is replacing an older model, you will need to install an updated interface board and make some minor modifications to the display panel. These modifications are explained at the end of this document. When replacing the LCD Interface Board Different LCD Interface boards have been used during production of the PA800. To maintain compatibility with the installed LCD module, a replacement board must be the same version as the original. If the correct version board is no longer available, then the LCD module must also be replaced. Table 1 lists the various LCD Models next to their compatible Interface Boards. LCD and Matching Board LCD Display Type LCD Interface Board (Part Number) LCD0001004_H KIP-2107 (GRA0002107) LCD0001004_N KIP-2107 (GRA0002107) LCD0001006 KIP-2140 (GRA1002140) LCD0001008 KIP-2164 (GRA0002164) Identifying the LCD and Interface Board models The Interface Board number will have KIP-2107", "KIP-2140", or "KIP-2164" silk screened directly onto the circuit board. Refer to Table 1 for the respective part numbers. If the PA800 is serial # 6022177 or later, the display is an LCD0001008. For older models; a label on the back of the display panel shows the LCD part number for display models LCD0001004_H and LCD0001006. If there is no a label, the display part number is LCD0001004_N. The pictures below show the back panel of each of the earlier display type. Continued on next page... LCD Identification Chart Continued on next page... Modification required when installing LCD0001006 or LCD0001008 When installing LCD0001008 into a unit containing an older display version, you will need to replace the LCD Interface Board with part # GRA1002140 and modify the display bezel as illustrated below. Important Note: Please pay close attention to the orientation of the flat ribbon cables. For the LCD0001008/KIP-2164 combination, the wide cable is flipped when compared to previous LCD models. Look at the connector pins to confirm the proper orientation. Modification Illustrations « © 2009 Copyright Korg USA Inc.