Toa IR-200M, Service Manual

Page: 14 / 24

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IR-200M Y
14 14 SCHEMATIC DIAGRAMS
6dB ATT
To CN100 of
MAIN PCB
To Charge PCB
assembly
To Microphone
element assembly
Microphone
amplifier
Pre-emphasis
AF level control
Low-pass filter
Compressor
Tone oscillator
Electret condenser
microphone
To CN102 of
MAIN PCB To CN101 of
MAIN PCB
Drive current control
LED driver
Infrared emitting LED
LED driver
RF amplifier
IR bias control
Drive current control
300μs
· SUB PCB