Mindray DPM 1 Servisní příručka stáhnout pdf (Strana 17)

Circuit Principle

2-5 Pulse oximeter Service Manual

R85 work together to prevent the locking of the CPU.

Fig 2-6 Delay Circuit Block

The power-on and power-off signals through two diodes constitute a AND logic output

signal named PCON signal, which directly controls the ON/OFF. Resistor R111 is

necessary for the AND logic circuit. R95, C82 and E12 form a RC filtering network to

protect the circuit from electrostatic charge.

Fig 2-7 Switch On Circuit

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 33 34

Žádné komentáře

Mindray DPM 1 Servisní příručka Strana 17