Yamaha TG77 Installation Manual - Page 9

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Yamaha TG77 LCD Replacement Guide

Fig. 7 - Location of CN605 which needs to be removed

Step 3:

In order to power the backlight of the new replacement LCD the wired

connector labeled CN605 located on the power supply circuit board

needs to be desoldered and replaced with the white 2-pin connector

part that is provided with the replacement LCD.

In order to desolder CN605, the power supply circuit board needs to be

removed and flipped over to work on. To remove the power supply

circuit board, first remove the metal box that covers the inverter. This is

shown in Fig. 8 on page 10. The metal covering is held in by 2 screws on

the side of the case as shown in Fig. 9 on page 10.

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