Kenwood TK-760G Manual Do Utilizador
31
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