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Figure 4-5
Circuit for Beeper
The illustration below shows the circuit of Beeper. The left part of Figure 4-6 is the driver circuit on
EM2037 decoder board. The right part of Figure 4-6 is provided for design reference. nBEEPER signal
comes from PIN9 of 12 PIN-FPC.
Figure 4-6
Circuit for Sleep Mode LED
The illustration below shows the circuit of External LED for indicating sleep mode. The left part of Figure
4-7 is the driver circuit on EM2037 decoder board. The right part of Figure 4-7 is provided for design
reference. PWRDWN signal comes from PIN8 of 12 PIN-FPC.
The host terminal can adjust the external circuit and its functions as per actual needs, but the external
circuit should match the circuit of the decorder board.
Driver Circuit inside Mainboard
Suggested External Driver Circuit
Driver Circuit inside Mainboard
Suggested External Driver Circuit
