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TK-760G/762G
DESCRIPTION OF COMPONENTS
Display Unit (X54-3270-10) : TK-760G
Ref. No. Use/Function Operation/Condition
D801 Reverse current
prevention
D802~805
Light emission
D808 Current stability
IC801 LCD driver
Q801 DC switch (LED)
Display Unit (X54-3280-10) : TK-762G
Ref. No. Use/Function Operation/Condition
D801 Light emission
D802 Reverse current
prevention
D803,804
Light emission
IC801 LCD driver
Q801~809
DC switch (LED)
TX-RX Unit (X57-5950-XX)
-10 : TK-760G K -11 : TK-762G K -12 : TK-760G K2
-13 : TK-762G K2 -21 : TK-760G M
Ref. No. Use/Function Operation/Condition
D1 Surge absorption
D2 Voltage reference
D3~5 Surge absorption
D8
IF switch (Wide/narrow)
D9 DC switch
D10
IF switch (Wide/narrow)
D11 Noise amp detect
D14 Surge absorption
D15 OR gate SP mute, AM
D16 RF switch (TX/RX) Heterodyne
D17 Temperature Drive
compensation
D18 RF BPF tuning
D19 Surge absorption
D20 Reverse current
prevention
D21 Voltage reference
D22 Temperature Drive
compensation
D23 RF BPF tuning
D24 Voltage reference
D25 Surge absorption
Ref. No. Use/Function Operation/Condition
D27 Reverse current
prevention
D28 RF BPF tuning
D29 Reverse current
prevention
D30,31 RF BPF tuning
D33,34 ANT switch
D35,36
APC voltage detect
D39 Voltage reference Power protection
D40 Charge DEO
D41 Voltage drop Charge pump
D501 Reverse current KOUT 0
prevention
D502 Reverse current KOUT 1
prevention
D503 Reverse current KOUT 2
prevention
D504 Reverse current KOUT 0
prevention
D505 Reverse current KOUT 1
prevention
D506 Voltage discharger When powering down
D507 Reverse current KOUT 2
prevention
D508 Limiter MIC
D509~514
Key backlight Active while MBL is H
D521 Busy/TX LED Lights green while busy,
red while TX
D523 OR gate MIC mute, MM, MM2
D524 Surge absorption HOOK/RXD
D525 Surge absorption PTT/TXD
D526 Current protection
D527 Surge absorption CM
D528 Surge absorption MBL
D529 Limiter QT/DQT decode limiter
IC1 Sum amplifier DI, TO mixer
IC2 DC amplifier FC, TCXO control
IC3 PLL synthesizer Reference 16.8MHz,
PLL lock : LD H
IC4 Amplifier DEO
IC5 FM demodulation Quadrature detector, 2nd mixer,
OSC, IF amplifier, RSSI
IC6 D/A converter
IC7 DC amplifier PC/TV control
IC8 Prescaler 1/2 prescaler