TTI TCB-880 - Semiconductors and Function

3. Semiconductors and Function
3-1. Transistor
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Ref No. Description Manufacturer Function
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Q101 KTC3880S KEC RX Amplifier
Q102 KTK211 KEC 1’st Mixer
Q103 KTK211 KEC 1’st Mixer
Q104 KRC101S KEC RX Band1 Switching
Q105 KRC101S KEC RX Band2 Switching
Q121 KRC110S KEC
Q122 KRC112S KEC RX RSSI Level Control
Q131 KTC3875S KEC Squelch
Q151 KTC3875S KEC RX FM AF Amplifier
Q152 KRC112S KEC FM AF Mute at AM Mode
Q153 KRC101S KEC FM AF Mute at AM Mode
Q154 KRC112S KEC RX AF Mute at TX Mode
Q161 KTC3880S KEC AM IF Amplifier
Q162 KTC3880S KEC AM IF Amplifier
Q163 KRA102S KEC RX AM B+
Q164 KTA1504S KEC Automatic Noise Level Control
Q181 KTC3875S KEC RX RF Mute at TX Mode
Q182 KTC3875S KEC AGC
Q183 KTC3875S KEC AGC
Q201 KRC101S KEC AF Mute
Q202 KRC202S KEC AF Path
Q233 KTA1504S KEC Automatic Level Control
Q234 KTC3875S KEC Automatic Level Control
Q301 KTC3880S KEC VCO
Q302 KTC3880S KEC RX/TX VCO Buffer
Q303 KTC3880S KEC VCO Buffer
Q305 KRC101S KEC TX VCO Control
Q311 KRC101S KEC RX Band1 Switching
Q312 KRC101S KEC RX Band2 Switching
Q313 KRC101S KEC RX Band3 Switching
Q502 KTC3875S KEC FM TX AF Mute at AM TX
Q701 KTC3880S KEC TX Doublers
Q702 KTC3880S KEC TX Pre-Amplifier
Q703 KTC1006 KEC TX Driver Amplifier
Q704 2SC2078 SANYO TX Power Amplifier
Q742 KTC3875S KEC TX RF Mute at RX Mode
Q801 KRC101S KEC CPU Reset
Q802 KRC101S KEC CPU RX/TX Control
Q803 KRA101S KEC MIC Lock Control
Q911 KTA1658 KEC Main Regulator
Q912 KRA1504S KEC Main Regulator
Q913 KRC112S KEC Main Regulator Control
Q914 KRC102S KEC Power Low Control
Q921 KTC3875S KEC 8.2V Regulator
Q922 KRC112S KEC 8.2V Regulator Mute at PA Mode
Q923 KTC3875S KEC RX B+
Q924 KRA1504S KEC TX B+