Yamaha TG77 Manual de instalação - Página 6
Procurar online ou descarregar pdf Manual de instalação para Instrumento musical Yamaha TG77. Yamaha TG77 20 páginas. Replacement display
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Yamaha TG77 LCD Replacement Guide
Fig. 3 - Contrast resistor labeled R476 and contrast potentiometer labeled
VR301 CONTRAST VOL. Both located in the Upper Right Corner
Step 1:
Both the contrast resistor labeled R476 and the contrast potentiometer
labeled VR301 CONTRAST VOL. need to be removed and replaced.
These parts are both located in the upper right corner as shown in the
photo above, Fig. 3. In order to desolder these parts the circuit board
needs to be removed and flipped over. The circuit board is held in place
by 7 screws on the inside as shown in Fig. 4 on page 5 and another 6
screws on the back as shown in Fig. 5.
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