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u/Emotional_Ad1623

r/crt
Image 1 — I cannot adjust the horizontal position of the screen when using RGB multi-input.
Image 2 — I cannot adjust the horizontal position of the screen when using RGB multi-input.
Image 3 — I cannot adjust the horizontal position of the screen when using RGB multi-input.
Image 4 — I cannot adjust the horizontal position of the screen when using RGB multi-input.
Image 5 — I cannot adjust the horizontal position of the screen when using RGB multi-input.
Image 6 — I cannot adjust the horizontal position of the screen when using RGB multi-input.
Image 7 — I cannot adjust the horizontal position of the screen when using RGB multi-input.
▲ 1 r/crt

I cannot adjust the horizontal position of the screen when using RGB multi-input.

I'm having trouble adjusting the horizontal position of the screen on my NEC “C-21X25PVW.” When I display a test pattern via RF input, the image is centered, but when using composite or multi-RGB inputs, the image shifts to the left. Since I was working on repairs and the back panel is currently removed, I inspected the circuit board to look for an adjustment knob. However, even when I turn the horizontal adjustment knob, the screen position remains unchanged. It seems that only the PC RGB input has a knob on the terminal board that allows for horizontal adjustment. Is there a possibility that I’m overlooking something?

u/Emotional_Ad1623 — 7 days ago