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26
TS-2000/X
DISPLAY UNIT (X54-3320-00)
Ref. No.
Use / Function
Operation / Condition
Q1~3
AVR
LCD backlight
IC1
LCD driver
LCD 7-segment driver (B-SEG)
IC2
LCD driver
LCD 7-segment driver (A-SEG)
IC3
LCD driver
LCD dot segment driver
IC4
Serial/parallel
LED control, backlight dimmer control
D1
LED
On when VOX is selected
D2
LED
On when PROC is selected
D3~9
LED
Key illumination
Ref. No.
Use / Function
Operation / Condition
Q43
Amplifier
HF/50MHz TX drive amplifier
Q44,45
TX 3rd mixer
Converts 68.985/75.825MHz to TX
frequency
Q46,47
TX 2nd mixer
Converts 10.695MHz to 68.985/
75.825MHz
Q48
Buffer amplifier
10.695MHz
Q49
TX 2nd IF amplifier
10.695MHz
Q51
Switching
Keying control
Q52
DC buffer amplifier
ALC keying control
Q53
Switching
On during TX in non-FM mode
Q54
TX 2nd IF amplifier
10.695MHz
Q57
Switching
On during transmission in FM mode
Q58
Limiter
FM modulation signal limiter
(elimination of AM component)
Q59
Oscillator
FM oscillator, modulation 10.595MHz
Q60
Switching
On during TX in non-FM mode
Q61,62
Mute
On when main and sub are
simultaneously AF muted
Q63,64
DC-DC oscillator
–6V generation
Q65
Switching
On when relay for HF band linear is used
Q66
Switching
On when relay for HF band linear
is transmission
Q67
Switching
On when relay for HF band linear is used
Q69,70
AVR
AVR for mobile controller
(Power about 9.4V)
Q71,72
Switching
50MHz/VHF/UHF/1.2GHz band
external linear control
Q73,74
Amplifier
ALC amplifier
Q75
Switching
On in AM mode, makes it an
average value type ALC
Q76
Amplifier
ALC amplifier
Q77
Switching
Turns on and lowers the power at
time of protection
Q78,79
Amplifier
ALC amplifier
Q80~91
Switching
Produces the respective TXB and
RXB from 8C to HF/50MHz, VHF
band, UHF band and 1.2GHz bands.
The synthesis of the TXB becomes
IF TXB and the synthesis of the
RXB becomes IF RXB.
This control voltage is necessary
for simultaneous TX/RX, such as
for satellite communication.
Q92
Switching
Cancels the time constant for VSF
and VSR voltage lines during
antenna tuning
Q93
Buffer amplifier
Buffer amplifier for external
modulation input signal
TX-RX 1 UNIT (X57-605X-XX)
Ref. No.
Use / Function
Operation / Condition
Q1
RF mute
On in HF/50MHz TX mode
Q2
Switching
On in HF/50MHz RX mode
Q3
Switching
Q2 control
Q4
Switching
Dedicated external RX antenna
changeover relay control
Q5
Switching
HF/50MHz RF ATT control
Q6
Switching
On in 50MHz TX mode
Q7~10
RX 1st mixer
RX 1st IF 69.085/75.925MHz
Q11
Switching
Off when HF/50MHz preamplifier on
Q12
RF amplifier
When HF-21.5MHz
Q13
Amplifier
1st local oscillation amplifier
Q14,15
Switching
Q12 control
Q16,17
Switching
Q16 turns on when first IF change-
over control is 75.925MHz
Q18
Amplifier
RX 1st IF 69.085/75.925MHz
Q19,20
RX 2nd mixer
Converts RX 1st IF to 10.695MHz
Q21
Switching
Reserved
Q22
Amplifier
For NB 10.695MHz
Q25
Amplifier
RX 2nd IF amplifier 10.695MHz
Q26
Amplifier
NB amplifier 10.695MHz
Q27
DC amplifier
NB AGC amplifier
Q28
Amplifier
NB amplifier 10.695MHz
Q29
Switching
On at time of NB blanking
Q30
Buffer amplifier
Impedance changeover
Q31
Switching
On at time of NB blanking
Q32
Amplifier
RX 3rd local oscillation amplifier
(11.150MHz)
Q33
Switching
On when 1st IF frequency is 69.085MHz
Q34
Switching
Creates RXB in FM mode
Q37
Switching
Creates RXB in non-FM mode
Q38
Amplifier
3rd IF amplifier (455kHz)
Q40
Switching
On during RX in non-FM mode
Q41
Amplifier
RX 4th local oscillation amplifier (467kHz)
Q42
Buffer amplifier
4th IF frequency (12kHz)
DESCRIPTION OF COMPONENTS
Содержание TS-2000
Страница 132: ...TS 2000 X TS 2000 X 134 WIRING ...
Страница 142: ...1 2 B A D F C E G I H J 3 5 7 9 4 6 8 10 12 14 11 13 TS 2000 X CIRCUIT DIAGRAM 165 ...
Страница 144: ...1 2 B A D F C E G I H J 3 5 7 9 4 6 8 10 12 14 11 13 TS 2000 X CIRCUIT DIAGRAM 169 ...
Страница 167: ...234 TS 2000 X MC 52DM MULTI FUNCTION MICROPHONE WITH DTMF Schamatic Diagram ...