Filter
Top Products
32
TK-760G/762G
DESCRIPTION OF COMPONENTS
Ref. No. Use/Function Operation/Condition
IC9 Shift/Store register HNC, 8RC, 8TC, SPMUTE, RX,
PA/LI, AUX5, AUX6
IC10 5V AVR 5C (TX/RX)
IC11 9V AVR 9C
IC12 8V AVR 8C
IC13 AF amplifier
IC14 Power supply logic
circuit control
IC15 DC amplifier APC control
IC400 Power module
IC501 Flash ROM
IC502 CPU
IC503 Reset IC Low voltage output when
powering up
IC505 EEPROM
IC507 Amplifier MIC, AFO
IC508 Audio processor Compander, MIC amplifier,
ALC, AF filter, IDC
IC509 Analog switch MO, DEO, EMG, MI switch
IC510 Shift/Store register W/N, MM2, MBL, LED0, LED1,
AFREG1, AFREG2, BSHIFT
IC511 DTMF decode
IC512 5V AVR 5C (control)
IC513 Amplifier QT/DQT decode
IC514 Amplifier 2-Tone decode
Q1 DC switch HOR
Q2 DC switch 5S
Q3 DC switch (W/N) Active while it is narrow
Q4 DC switch (W/N) Active while it is wide
Q5 DC switch HNC
Q6 DC switch IGN
Q7 Buffer amplifier 16.8MHz x 3
Q8 Lipple filter 8CL
Q9 Buffer amplifier PLL fin
Q10 Noise amplifier Squelch
Q11 Charge pump øP
Q12 Charge pump øR
Q13 IF amplifier 49.95MHz
Q14 Buffer amplifier Hetetodyne
Q15 Mixer
Q16 DC switch 8R cont, active while RX
Q17 AF mute Active while AF mute
Q18 DC switch 8R, active while RX
Q19,20 DC switch SB switch, active when
powering up
Ref. No. Use/Function Operation/Condition
Q21 DC switch Active while PS voltage is more
than 20V
Q22 RF amplifier Predrive
Q23 DC switch SB switch, active when
powering up
Q24 AF mute
Active while power switch is off
Q25 RF amplifier Drive
Q26 Inverter
Active while power switch is low
Q27 L.N.A.
Q28 DC switch 8T, active while TX
Q29 DC switch 8T cont, active while TX
Q31 APC controller
Q32 APC controller DB
Q33 APC controller Power protection
Q35 W/N switch Active on narrow
Q36 DC switch Power protection
Q37 AF mute switch Inactive on mute
Q38 DC switch 5S
Q39 DC switch Output enable
Q501 Clock switch shift
Clock shift is on while BSHIFT is H
Q502 AF mute Active while MUTE is H
Q503 Inverter Active while PA2 is H,
active while public address
Q504 LED switch (Red) Active while LED0 is H,
active while TX
Q505,506 Key backlight switch Active while MBL is H
Q508 LED switch (Green) Active while LED1 is H,
active while RX
Q509 MIC mute Active while MM is H and
MM2 is H
PLL/VCO (X58-4670-XX) -10 : K,M -11 : K2
Ref. No. Use/Function Operation/Condition
D101 RX VCO
D102 TX VCO
D103 RX VCO
D104 TX VCO
D105 Modulation
Q101 Oscillator RX
Q102 Inverter Active while ST is H
Q103 Oscillator TX
Q104 TX/RX switch (TX) Active while ST is H
Q105 TX/RX switch (RX) Active while Q102 is off
Q106 Buffer amplifier