Yaesu FT-757GX II, Техническое дополнение

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Q2009
1 5 M Hz VCXO
Q20 5 5 P L L 2 V C O Ou tpu t
(fX FM/CW)
Buffer Amp
Q20 1 0 2SC5 3 5 B FM/CW
TX
Carrier
Q2056
Not Used
Disable Sw
Q205 7 2SC5 3 5 B
NPN S i TR 1 st RX/3rd
TX
LO
Q20 1 1
RX and SSB/AM TX ,
Preamp
1 5 MHz Car LO Buffer
Q20 5 8 2 N44 2 7 1 st Local Amp
Q20 1 2
SN 1 6 9 1 3 P Mixet IC Carrier Premixer
Q2059 2SC4 5 8 B
VOX Amplifier
Q20 1 3 2SC4 5 8 B NPN S i TR RX Carrier LO Buffer
Q2060
Q20 14
TX Carrier LO Buffer
Q206 1
AN6 5 5 1
Op amp IC
VOX Comparator
Q20 1 5
6 . 78MHz S S B Car and
Q206 2
2SC45 8 B NPN Si TR VOX Switch
SHIFT VCXO
Q206 3
Counter Startup Delay
Q20 1 6 2SC5 3 5 B
3 2 .06MHz 2nd L O and
Switch
WIDTH VCXO
Q2064
M C 1 4 0 2 8 BCP BCD-Dec µP PLL Div Freq Data
Q20 1 7 2SC4 5 8 B 3 2 .06 MHz Buffer Amp Decoder IC Decoder
Q 20 1 8
SN76 5 1 4 N Mixer IC 2nd Local Premixer
Q206 5
MC145 1 0 BCP BCD U/D Tuning Pulse Counter
Q20 1 9
2SC5 3 5 B NPN S i TR 2nd Local Buffer Amp Counter IC
Q2020
2SC4 5 8 B Disable S w (CW)
Q2066
MC140 1 1 BCP Quad NAND IC Tuning, Au to Scan
RX and S S B/ AM TX Gates
Carrier
Q206 7 SC820 72P
8-bit µP LSI
Freq Control CPU
Q20 2 1
(FM )
Q206 8 µPC 7 8 L05
Regulator IC
5V Reg for Local and
Q2022
µPC 7 8 L05 Regulator IC Reg for RX IF Shift Dial Unit Logic
Preset on TX
Q206 9 MC1404 2 BCP Quad Latch IC µP Band Data Decoder
Q20 23
Not Used Latch
Q20 24 2SA7 3 3 AP
PNP Si TR IF Shift Disable on
TX
Q20 70 SN74LS 145 N BCD-Dec Band Data BCD-Dec
Q20 25 2SC4 5 8 B
NPN S i TR 1 5 MHz PLL Ref, RX
Decoder IC Decoder
and SSB/AM TX Car
Q20 7 1 2SC4 5 8 B NPN S i TR CPU Startup Reset
Oscillator Delay Switch
Q20 26
1 5 M Hz Buffer Amp
Q20 72
Q20 2 7
HD105 5 1P Divider IC
1 /20 Ref Divider for
Q20 73 TX Inhibit Switch
Marker
(for MAN and EXT)
Q20 28 2SC5 3 5 B NPN Si TR 4 5 MHz Tripler for
PLLl LO
D 200 1 1 N2 70 Ge Diode TX, SSB PROC Limiter
Q2029 SN16 9 1 3 P
Mixer IC PLLl Mixer
D2002
Q20 3 0
2SC5 3 5 B NPN Si TR PLLl IF Amp
D2003 M A 1 90 Si Diode
TX FM IDC Switch
Q20 3 1
MC145 145 CMOS IC PLLl Prog Div and
D2004
Phase Detector
02005 TX AF Amp Disable
Q20 3 2 2 S K 1 9 2AGR
JFET
34-3 9MHz VCO Switch (CW)
(PLLl )
D 2006
TX
AF Amp Disable
Q20 3 3 2SC4 5 8 B
NPN S i TR PLLl VCO Feedback
Switch (FM)
Buffer
D 200 7 MV 1 0 3 Varistor Diode Temp Compensator for
Q20 34
PLLl VCO Ou tpu t FM Modulator
Buffer
D2008 M A 1 90 Si Diode TX CW Car Osc Crystal
Q20 3 5
HD1055 1 P Divider I C 1 / 1 0 PLL l Ou tpu t
Switch
Divider
D2009 TX FM Car Osc Crystal
Q20 36
2SC5 35 B NPN Si TR PLL Ref Tripler/
Switch
Quadrupler
D20 1 0 FC5 3 M-5 Varactor Diode FM Modulator
Q203 7 SN76 5 1 4 N
Mixer I C PLL2 Local Premixer
D 20 1 1 M A 1 90 Si Diode TX FM Car Osc Bias Sw
Q20 3 8 2SC5 35 B
NPN Si TR PLL2 4 1 MHz Local
D20 1 2 TX FM/CW Car Osc
Amp
Disable Sw (RX )
Q20 3 9
PLL2 5 6 M Hz Local
D20 1 3 RX , SSB/AM TX
Amp
1 5 MHz Car LO
Q2040 SN765 1 4 N Mixer IC
PLL2 Mixer
Disable (FM/CW TX )
Q204 1 2SC5 3 5 B NPN S i TR
PLL2 IF Amp
D 20 1 4 Enable Sw ( )
Q2042 MC145 1 45 CMOS IC PLL2 Prog Div and D 20 1 5 Rev Voltage Isolator
Phase Detector (SSB/CW RX )
Q2043 2SA7 3 3 AP PNP Si TR PLL Unlock Switch
D 20 1 6 RD 7 .S EB3
Zener Diode
7 .S V Reg for Car Sw
Q2044 2SC4 5 8 B NPN Si TR TX Inhibit Switch
Q20 1 1
(for Unlock)
D20 1 7 M A 1 90
Si Diode
USB Car LO X
ta!
Sw
Q2045 2SC5 3 5 B PLL2 1 st R X , 3rd TX
for USB, CW, AM , FM
Local VCO
D 20 1 8 LSB Car L O Xtal Sw
(0 .5 - 7 .S MHz )
D 20 1 9 FC5 2M-5 Varac tor Diode 6 .78MHz VCXO IF
Q2046
" (7 .5 - 1 4 .5 MHz )
SHIFT Control
Q2047
" (14 .5 - 2 1 .S MHz )
D20 20 1 SV50
3 2 .06 M Hz 2nd LO IF
Q2048
" (2 1 .5 - 3 0 .0MHz )
WIDTH Control
Q2049 2SA73 3 AP PNP Si TR PLL2 LO and VCO
D20 2 1 M A 1 9 0 Si Diode Rev Voltage Isolator
Bandswitch
(CW TX Sw )
(0 .5 - 7 .S MHz )
D2022 " (FM TX Sw)
Q2050
" ( 7 .5 - 1 4 .5 MHz )
D 2023 " (SHIFT TX Preset )
Q20 5 1
" (14 .5 - 2 1 .5 MHz )
D2024 1 S S 1 0 1 Schottky
. .
(
)
Q20 5 2 " (21 .5 -30MHz )
Barrier Diode
Q20 5 3 2SK19 2AGR JFET PLL2 VCO Feedback
D2025 RD9 . 1 EB3 Zener Diode Reg for SHIFT
Buffer Amp
Reference
Q2054 2SC5 3 5 B NPN Si TR
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