Raymarine Ray430 - Manual (Page 32)

9. Input Signal Selector
Selects input signal to active the FWD, AFT, INT, or EXT speaker(s).
10. 10. Tone Generator
Generates a horn and alarm sound for the RAY430. This generator is controlled by the CPU
to produce correct sound patterns and signal timing for various automatic or manual signal
outputs.
11. LCD Driver
U-202 Controls the LCD display.
12. 12. LCD
The LCD is a custom LCD featuring 1 2 characters on a Dot Matrix display. The bar for the
volume and the intercom call numbers are displayed with 16 segment x 8 characters.
13. EL Driver
Drives the EL, controlled by On/Off & Dimmer control knob.
14. EL
Backlights the LCD display.
4-2