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COMPO N E N T A P P L I CAT I O N S
MA I N CHASSIS
Q 1 046
AN6 5 5 2
Dual
Op
amp
TX
ALC Diff Amps
Q104 7
2SC3 80TMY
NPN Si TR
TX ALC Buffer
LOCA-
NO MEN-
Q1048
3 SK73GR
MOSFET
TX 2nd IF Amp
TION
CLATURE
TYPE
APPLICATION
Q1049
2SK125
JFET
TX RF Post-Amp
µPC7808H
Regulator IC
8V Reg for Local Unit
Q1050
2N442 7
NPN S i TR
TX
RF Preamp
Ql
Q105 1
AN6 5 5 2
Dual O p amp
PO Meter Amps
Q105 2
2SA733AQ
PNP Si TR
RX/TX S/ ALC Meter
Amp
R F U N IT
Q 105 3
2SK107-3
JFET
Q1054
MC14066 B
Quad Analog
Meter Function
LOCA-
NO MEN-
SW
IC
Selector
TION
CLATURE
TYPE
APPLICATION
Q1055
2SC380TMY
NPN Si TR
Inverter for TX8V Sw
Q1056
Q1001
2SC3 80TMY
NPN Si TR
Marker Buffer Amp
Q1056
2SA1 1 9 3 K
PNP S i TR
T/R Sw for TX8V on
Q1002
MC145 1 8 BCP
Dual BCD
1/30 Divider (Marker)
RF Unit
Counter
Q105 7
T/R Sw for RX8V on
Q1003
2SK1 25
JFET
RX RF Amplifier
RF Unit
Q1004
Ql05 8
µPC7808H
Regulator IC
8V Reg for RF Unit
Ql 005
2SA7 3 3 AQ
PNP Si TR
Relay Driver
Q1059
2SA733AQ
PNP Si TR
PTT Switch Buffer
Q1006
2SK 1 25
JFET
RX 1 st Mixer
Q1060
MC140 1 1 BCP Quad NAND
T/R Switching Sync
Q1007
Q106 1
2SC380TMY
NPN Si TR
TX Sidetone Switch
Q1 008
RX 1 st IF Post-Amp
(w/Ql064)
Q 1009
2SA7 3 3 AQ
PNP Si TR
RX Front End Mu te
Q106 2
TX CW Key Enable Sw
(on TX )
Ql063
2SA733AQ
PNP Si TR
TX IF T/R Sw
Q 1 0 1 0
2SK107-3
JFET
RX 2nd Mixer
Q1064
2SC380TMY
NPN Si TR
TX Sidetone Osc Sw
QlO l l
Q 1065
2SA733AQ
PNP Si TR
-8V Delay Switch
Ql0 1 2
3SK73GR
MOSFET
RX Noise Amp
Q10 1 3
Dl00 1
MA190
Si Diode
Marker Ou tput Sw
Q1014
2SC3 80 TMY
NPN Si TR
RX NB AGC Amp
D l002
Marker Divider Preset
Q10 1 5
R X NB Gate S w
Switch
Q 1 0 1 6
3 SK73GR
MOSFET
RX 3rd Mixer
D 1 003
Q10 1 7
RX 3rd I F Amp
D 1 004
BPF to TX RF Preamp
Q 1 0 1 8
Switch (TX 8V)
Q1 0 1 9
2SC3 80TMY
NPN Si TR
RX AGC Amp
D1005
Ql020
RX AGC Buffer
Dl006
TX Switch
Q l 0 2 1
2SK24 1 GR
JFET
RX 2nd IF Buffer
Dl007
1 SS97
Schottky
BPF Switch
Q 1 0 2 2
MC3 3 5 9 P
FM R X IC
FM RX 3 rd Mixer,
Barrier Diode
(0 .5 - 2 .S MHz )
Lim Amp ,
D1008
"
(
)
Discriminator, Noise
D l 009
"
(2 .5 -4 .0MHz)
Amp, Squelch Sw
D l 0 1 0
"
(
)
Q1023
2SC3 80TMY
NPN Si TR
RX Squelch Sw
D l 0 1 1
"
(4 .0- 7 .S MHz )
Q1024
RX IF Width LO
D10 1 2
"
(
)
Q l 0 25
RX Width Local Amp
D l 0 1 3
"
(7.5 - 14.5 MHz)
Q 1 0 26
RX Local Buffer Amp
D 1 0 1 4
"
(
)
Q1027
3 SK73GR
MOSFET
RX Carrier Mixer
D l 0 1 5
"
(14 .5 - 2 1 .S MHz )
Ql028
2SC380TMY
NPN Si TR
RX
Carrier Bu ffer
D l 0 1 6
"
(
)
Q1029
AN6 5 5 2
Dual Op amp
RX RF AGC Amp
D 1 0 1 7
"
(2 1 .5 -30MHz)
Au to Scan Diff Amp
D 10 1 8
"
(
)
Ql030
MC14066 B
Quad Analog
RX Detector Selector
D l 0 1 9
S W
IC
Switch
Dl020
Q 1 0 3 1
2SC3 80TMY
NPN Si TR
RX Detector Squelch
D 1 0 2 1
MA190
Si Diode
BC BPF Enable Switch
Switch
Dl022
1 .9MHz BPF Enable
Q 1 0 3 2
R X A M , S S B Active
Switch
LPF
D 1023
BC RF Amp Relay Sw
Q 1 0 3 3
R X FM AF Buffer
D 10 24
Not Used
Q l 0 34
RX CW Active LPF
D l 0 25
Q l 0 3 5
R X A F Preamp
D1026
Q 1 0 36
TX Sidetone Osc
D 1 0 2 7
MA190
Si Diode
24 .5 /28MHz BPF/LPF
Q 1 0 3 7
M B3 7 1 3
A F amp IC
RX AF Power Amp
Diode OR (28MHz)
Q l 0 3 8
2SC3 80TMY
NPN Si TR
TX SSB Drive Sw
D 1028
(24 .5 MHz)
Q l 0 3 9
2SA7 3 3 AQ
PNP Si TR
TX Drive Enable Sw
D 1029
18/21 MHz BPF/LPF
(T/R)
Diode OR (2 1 MHz )
Q 1 040
2SK1 25
JFET
TX 1 st IF Buffer
D 1030
(1 8MHz )
Q l 04 1
2SC 1 9 2 3 0
NPN S i TR
2nd LO Buffer
Dl03 1
10/14MHz BPF/LPF
(RX and TX )
Diode OR (14MHz )
Q1042
2SK10 7-3
JFET
TX 2nd Mixer
D 1 0 3 2
(lOMHz )
Q l 043
D 1033
Back Pulse Canceller
Ql 044
2SC3 80TMY
NPN Si TR
TX lOm PO Reduction
Sw (for JAs)
Q1045
2SA7 3 3 AQ
PNP Si TR
- 28 -
Содержание FT-757GX II
Страница 1: ...FT 757GX TECHNICAL SUPPLEMENT YAESU MUSEN CO LTD C P 0 BOX 1500 TOKYO JAPAN...
Страница 4: ......
Страница 26: ...DISPLAY UNIT 0 DIAL UNIT Inside Front Panel 23...
Страница 42: ...LOCAL U N IT PARTS LAYOUT solder side 39...
Страница 49: ...1 00W PA U N IT PARTS LAYOUT Component side Solder side 44...
Страница 51: ...1 0W PA U N IT PARTS LAYOUT 46 Component side Solder side...
Страница 55: ...MEMO 50...
Страница 70: ...YA E SU v E3 8 9 0 1 8 4 E 2 8 4 0 6 P...