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TK-7102
DESCRIPTION OF COMPONENTS
Display Unit (X54-3340-20)
SYMBOL PARTS NAME DISCRIPTION
D1~4 LED KEY BACKLIT
D5 LED MONITOR KEY LIGHT
D6 LED PROGRAMMABLE KEY LIGHT
D7~10 LED CHANNEL KEY LIGHT
D11 LED BUSY
D12 LED TRANSMIT
Q1 TRANSISTOR MONITOR KEY LIGHT SW
Q2,3 TRANSISTOR CHANNEL KEY LIGHT SW
Q4 TRANSISTOR BUSY LIGHT SW
Q5 TRANSISTOR
PROGRAMMABLE KEY LIGHT SW
Q6,7 TRANSISTOR CHANNEL KEY LIGHT SW
Q8 TRANSISTOR TRANSMIT LIGHT SW
Q9,10 TRANSISTOR KEY BACKLIT SW
TX-RX Unit (X57-6290-20)
Ref. No. Use/Function Operation/Condition
D1 DIODE SURGE ABSORPTION /PTT
D2 DIODE SURGE ABSORPTION /HOOK
D3 DIODE SURGE ABSORPTION /MICBL
D4 DIODE SURGE ABSORPTION /CM
D6 DIODE DC SWITCH
D7 DIODE VOTAGE DROPPED
D9 VARICAP RX VCO
D10 VARICAP TX VCO
D11 VARICAP RX VCO
D12 VARICAP TX VCO
D13 DIODE IF SWITCH (WIDE/NARROW)
D14 VARICAP MODULATION
D15 DIODE IF SWITCH (WIDE/NARROW)
D16 DIODE LIPPLE FILTER
D18 DIODE RECTIFICATION
D19 DIODE RF SWITCH(TX/RX)
D20 DIODE
TEMPERATURE COMPENSATION
D21 VARICAP RF BPF TUNING
D22 VARICAP RF BPF TUNING
D23 DIODE
TEMPERATURE COMPENSATION
D24 DIODE LIMITTER
D25 VARICAP RF BPF TUNING
D26 VARICAP RF BPF TUNING
D27 DIODE
TEMPERATURE COMPENSATION
D30 DIODE ANT SW
D31 DIODE ANT SW
Ref. No. Use/Function Operation/Condition
D34 DIODE APC VOLTAGE DETECT
D36 DIODE APC VOLTAGE DETECT
D38 DIODE
REVERSE CONNECT PROTECTION
D39 DIODE OVER VOLTAGE DETECTION
D41 POLY SW CURRENT PROTECTION
D43 DIODE OR GATE /Mic Mute, AGC
D44 DIODE AGC
Q2 FET Emergency Mic mute
/Active while MICEM is H
Q3 TRANSISTOR RF AMP /PLL Fin
Q4 TRANSISTOR CHARGE PUMP
Q5 TRANSISTOR CHARGE PUMP
Q6 TRANSISTOR BUFFER AMP
/16.8MHz 3rd over tone
Q7 FET T/R SW
Q10 FET RX VCO
Q11 FET TX VCO
Q12 TRANSISTOR T/R SW
Q13 TRANSISTOR BEAT SHIFT
/Active while Beat shift is on
Q14 TRANSISTOR LIPPLE FILTER
Q15 TRANSISTOR BUFFER AMP /Output of VCO
Q16 TRANSISTOR IGNITION /Ignition Sens.
Q18 TRANSISTOR SQL AMP
Q19 TRANSISTOR IF AMP
Q20 TRANSISTOR RF AMP /Output of VCO
Q21 FET MIXER
Q22 FET AF MUTE
/Active while Mute1 is H
Q23 TRANSISTOR RF AMP /Drive stage
Q24 TRANSISTOR BUFFER AMP /RX Audio
Q25 TRANSISTOR RF AMP /Drive stage
Q26 FET RF AMP /LNA
Q27 TRANSISTOR APC CONTROLLER
Q29 TRANSISTOR DC SWITCH(8R)
/Active while RX
Q30 TRANSISTOR DC SWITCH(8T)
/Active while TX
Q31 TRANSISTOR DC SWITCH(8R)
/Active while RX
Q32 TRANSISTOR AF MUTE
/Active while Mute2 is H
Q33 TRANSISTOR DC SWITCH(8T)
/Active while TX