Kenwood TR-7730 User manual

YKENWOOD
SERVICE MANUAL
R-7730
VHF FM TRANSCEIVER
®KENWOOD
2m
FM
TRANSCEIVER
BUBY
1
2
POWERS
VOL
SQUELCH
a
2
yo - o
Oty. al . A
TR-7730
ON AiR RPT
56
CONTENTS
SPECIFICATIONS ........ 0.2... 00 eee eee 2 DISPLAY UNIT (X54-1520-11) 2.2... ee ee 12
CIRCUIT DESCRIPTION .................00. 2 M, MR BOARD (J25-2757-14) 2.0... ee ee 12
PC BOARDS M.S, TONE BOARD (J25-2757-14) .. 0.0.00. 06. 12
RX.TX UNIT (X44- 1450-10) (K, M TYPE). ...... 8 SCAN, HOLD BOARD (J25-2758-14) ......... 12
RX.TX UNIT (X44-1450-51, -61) (T, WTYPE).... 9 PARTS LIST 2... ee eee 13
FINAL UNIT (X45-1190-10) 2.2... eee eee 10 DISASSEMBLY ... 0.0.0.0... 0.0.0 eee 18
PLL UNIT (X50-1750-10) 2.2.2.2 eee. 10 LEVEL DIAGRAM......... 00.20.2202 eee 20
CONTROL UNIT (X53-1230-10, -61) ......... 11 ADJUSTMENTS ©. 2... 0... cee ee nee 21
M.CH BOARD (J25-2715-04) .. 0.2... 2. eee 11 PACKING ©... 6. ee eee 28
RPT BOARD (J25-2744-04) 1... .........0.. 11 SCHEMATIC DIAGRAM (K, MTYPE)........ ... 29
SCHMITT BOARD (J25-2755-14) ............ 11 SCHEMATIC DIAGRAM (T, WTYPE)........... 30
10K/5K
or
25K/5K
(J25-2756-04)
...........
11
REFERENCE
DATA
.........
cee
ee
ee
31
H|/LOW BOARD (J25-2756-04) ........0...., 11
BLOCK DIAGRAM ............... BACK COVER

TR-7730
SPECIFICATIONS/CIRCUIT DESCRIPTION
[General]
SeMICONdUCtOIS .........cccee eee cec seen eeeeteteeeneneees ICs 15 (K,M) 16 (W, T)
Transistors 46 (K,M) 49 (W, T)
FETs 7
Diodes 91 (K,M) 95 (W, T)
Frequency range ..........-.2-eeeeeeeceeeseeeenaeee vanes 144.000 to 147.995 MHz (K,M) 144.000 to 145.995 MHz (W, T)
Frequency synthesizer ’ Digital contro!, phase locked VCO
Mode .......c.ccccccecsccerssnececeeseneeceneeeentetseneeeee FM (F3)
Antenna impedance ..................ccsceeeseeeeeeneee 50 ohms
Power requireMent ..........cccceceeeeetee seen eeeeeen eee 13.8 VDC 415%
Grounding ...........ceeeeceeeceenee et ee ener eeeenen tae nene Negative
Operating temperature
Current Crain .........cc ce cececsece ec eereeeeteteeeaeer erent
—20°C to +60°C
0.4A in receive mode with no input signal
5.5A in HI transmit mode (Approx.)
3A in LOW transmit mode (Approx.)
Less than 2.5 mA for memory back up (from power supply)
Dimensions. ...........c..ccceeeeeecteeeeeseentereeeenenans 147.5 mm (5-3/4) wide
51.5 mm (2”) high
198.0 mm (7-3/4") deep
(projections excluded)
Weight........-:::.ccsseeeeecceeecneeseeseessseaeeeeseneeees 1.5 kg (3.3 Ibs) (Approx.)
{Transmitter Section]
RF output power
(at 13.8 VDC, 50 OD load) ........0.. cece HI 25 Watts min.
LOW 5 Watts approx. (Adjustable)
Modulation ............:.0:0600
Frequency tolerance
(-—10°C~ +50°C)
Variable reactance direct shift
Less than + 20x 10°
Spurious radiation .........cccccccceeeeeeeeeeeeneneeeeeee HI Less than — 60 dB
LOW Less than — 53 dB
Maximum frequency deviation (FM} ............... +5 kHz
Microphone .............cccceccen eer en eee eeeene ene eneenees Dynamic microphone with PTT, up, down, switches, 500 2
{Receiver Section]
CirCUitry 0.0... ccccceeee eee enecneneneneeereeteenteneeetner Double conversion superheterodyne
Intermediate frequency ..........:ccccceeveeeeeeenerees 1st IF 10.7 MHz
2nd IF 455 kHz
Receiver Sensitivity .........cccccecnsesseeveeeueeneeeers Better than 0.5 »V for 30 dB S/N
Better than 0.25 zV for 12 dB SINAD
Receiver selectivity ...........ccccceeeesenseeeeeeneeeees More than 12 kHz (—6 dB)
Less than 25 kHz (— 60 dB)
Spurious reSPONSe............ ccc ceeeecetee eee er eee ees Better than 60 dB
Squelch sensitivity ...
eesvsasssesesesteaeesestenes 0.16 pV (threshold)
Audio OUtPUL 2... cee ece ete c cer eeeenea rea neaennees More than 2.0 watts across 8 ohm load (10% dist.)
Note: Circuit and ratings are subject to change without notice due to developments in technology.
NOTE : Letter designations used in this manual :
K ULS.A. X AUSTRALIA
T BRITAIN M GENERAL MARKET
W EUROPE
< RECEIVER SECTION >
RX.TX UNIT (X44-1450- XX)
The antenna signal is applied to the RF amplifier (Q3 :
3SK76},a dual gate MOS FET and helical resonator L5
(3 poles) and L6 (2 poles), and is then converted to the
10.7 MHz Ist IF signal by O04, the 1st mixer.
A 2-stage MCF (Monolithic crystal filter) is used in the 1st
IF stage. All this achieves high dynamic rane and high
sensitivity.
The 1st IF signal, after passing through the MCF, is mixed
with the 10.245 MHz 2nd local oscillator signa, generated
by 05 to obtain a 455 kHz 2nd IF signal.
This signal passes through the ceramic filter ICF7>W455F)
and is amplified by [C1, Q7 through Q10, andis then de-
modulated. An S meter signal is obtained by ditecting the
signal from the collector of Q7 by diodes D2 ad D3, and
is then applied to the display unit. The S meter uses
8 LEDs, and indicates 6 amber and 1 red LE) when the
antenna input level is 15 dBu.

TR775!
CIRCUIT DESCRIPTION
Item Rating
Nominal center frequency (fo)|10.7 MHz
Pass bandwidth fo+7.5kHz or more at 3dB
fo +25 kHz or less at 40 dB
fo +45 kHz or fess at 60 dB
Attenuation bandwidth
70 dB or more within fo +1 MHz
80 dB or more within
fo— (910 kHz + 10 kHz)
Guaranteed attenuation
40 dB or more within fo to
Spurious
fo +500 kHz
Ripple 1,0 dB or less
Loss 1.5 dB or less
Input and Output impedance |3kQ
Operating temperature —20°C~+70°C
Table 1 MCF (L71-0219-05) (RX.TX unit, L17)
Item Rating
Nominal center frequency 455 kHz
6 d8 bandwidth +6 kHz or more
50 dB bandwidth +12.5 kHz or less
Ripple (within 455 +4 kHz) 3 dB or jess
Loss 6 dB or less
Guaranteed attenuation
(within 455+ 100 kHz) 35 dB or more
Input and output impedance 2.0 k®
Table 2 Ceramic filter CFW455F (L72-0315-05)
(RX.TX unit, L18)}
The VCO signal is amplilfied by Q2 and Q3 in the PLL unit,
and then applied to the RX.TX unit via the LT terminal.
The signal is amplified by Q1 and Q2 before it is applied to
the power module. This simple transmitter structure pro-
vides superior spurious radiation characteristic.
The HIGH/LOW switch signal is applied to Q28, Q22 and
Q21 in the RX.TX unit, which controls the B+ voltage
applied to the driver stage (O2), so that final input and out-
put power is varied. The RF meter is adjusted so that 6
amber LEDs light at HIGH power. However, the number of
LEDs on may vary according to the VSWR of the antenna
system.
Terminal
: RE Input
: Vee 1
: GND
: Vec 2
: RF Output
abON=—
Fig. 1 POWER MODULE VP-15E 1305
Item
Rating
Center frequency and deviation
455 kHz +1.0 kHz
Peak separation 15 kHz or more
Voltage sensitivity (at 455 kHz)| 15 mV/kHz or more
Item Symbol! | MAX Rating | Condition
Power supply voltage Vec 17V Te= 25°C
DC current lec BA Tc = 25°C
Operating case temperature Top —30~ 100°C
Storage temperature Tsta | —40~110°C
—10°C~+50°C
Operating temperature
Table 3 Ceramic discri CF Y455S (L79-0446-05)
(RX.TX unit, L179)
< TRANSMITTER >
RX.TX UNIT (X44-1450- XX)
The microphone signal is amplified and limited by IC2
(TA7061AP), and is then applied to D1 (1S2208) in the
PLL unit to directly modulate the VCO. The VCO gener-
ates 144~ 145.995 MHz (W, T) or 143.9~ 148.995 MHz (K,
M) according to the control signa! from the microprocessor.
VP-15E1305 MAX Rating
It Symbol] Conditi Rating Unit
em ymbo ‘ondition MIN | TYP | MaAx | UNI
f range f 144 148 | MHz
Power input Pin 250 mw
Pin = 250 mw
Power output Po Vee = 13.0V 30 Ww
Operating
voltage Vec 13.0 Vv
Input and out- Pin = 250 mw
put impedance Zz Vec = 13.0V 50 2
a Pin = 250 mW
Total efficiency| nT Vee = 13.0V 45 50 ; %
VP-15E1305 Electrical Characteristic

TR-7730
CIRCUIT DESCRIPTION
PLL CIRCUIT (X50- 1750-10)
VCO Q1 : 2SK19 (GR) generates 143.900~ 148.995 MHz
(K, M) or 144.00~ 145.995 MHz (W, T) during transmission
and 133.200~ 138.295 MHz (K, M) or 133.30~135.295
MHz (W, T) during reception.
The VCO signal is buffered by Q2 and amplified by O3 and
Q4. It is then mixed with the HET signal (from Q5) by Q12
to obtain a PLL IF signal (5.4~ 10.495 MHz [K, M} or 5.5~
7.49 MHz [W,T]).
The HET signal is generated by O5, a third overtone oscilla-
tor using a 46.1666 MHz crystal to generate 138.5 MHz for
transmission and a 42.6 MHz crystal to generate 127.8 MHz
for reception. Both frequencies are shifted 5 kHz when the
5K control signal from the control unit (X53-1120-10) is
applied to D9 and D10 to shunt TC3 and TC4.
The resonant frequencies of L5, L7, L10, and the VCO
tank circuit and the HET frequency are switched for recep-
tion and transmission using the 8R (8V DC during recep-
tion) and 8T (8V DC during transmission) control lines.
The PLL IF signal is amplified by 010 and buffered by 011
and Q9, and then applied to pin 2 of IC3 (TC9122P) the
programmable divider. 1C3 is supplied with frequency divid-
ing data from the control unit :550~ 1049 (K, M} or 550~
749 (W, T) in BCD, and the PLL IF frequency is also divid-
ed to a 10 kHz signal for a phase-lock comparison signal.
IC2 (TC5082P-GL) is the 10.24 MHz oscillator. Its output
is divided by 1024 to 10kHz for IC1‘s reference signal.
These comparison and reference signals are input to the
phase comparator (IC1 : TC5081P) and the resultant DC
output signal is applied through the low pass filter Q8 and
Q7 to the VCO tank circuit through varicap diode (D2 :
1$2208) to control the VCO output frequency. if the PLL
unlocks, the voltage at IC1 pin4 drops to turn off Q6 and
D11, which shuts off Q3.
[ sw AMP
MOD
TX,RX UNIT 01
——~al
FROM Ic2 182208
F.CONT
D2
182208
N = 550~749 (Ww, T)
N = 540~1049 (K, M)
CONTROL UNIT
FROM 1C1
TX : 143.900~148.995 MHz (K, M)
RX : 133.200~138.295 MHz (K, M)
TX : 144.00~145.98 MHz (W, T)
RX : 133.30~134.30 MHz (W, T)
TX : 138.5MHz
RX : 127.8MHz |
5.5 MHz~7.49 MHz (W, T)
5.4 MH2~10.49 MHz (K, M)
TC3, 4 7
TX : 46.1663MHz (X2)
RX: 42.6Miz (X1)
aQ1li~g
28C460
(B)
CONTROL UNIT
+5kHz SHIFT
10.24MHz
OSC/DIVIDE (1/1024)
mm on
Fig. 2 PLL unit block diagram
GNO Pout De Dt Ca C3 C2 Ci B4 ;
Symbol N Ce it emarks
[ia] fi7] [ie] [ts] 14 fa] fiz] | [to] ymbo! ame lontent and operation |
Pin Programmable counter Programmable counter input terminal to which the signal to be Bulld-in bias
h ‘ input terminal divided rs input crreuit
GND OUT Pout Programmable counter Programmabie counter output terminal. Outputs 1/N of the
D output terminal. imput frequency. The output pulse width equals 5 bit of
- 2 the input
n
c 4 J Ai~Aa | x1 Terminal to set the dividing ratio. The followmg input Built-in
BR ~< B8,~8& | x 10 Program input | combination is prohibited pull-down
4 Ci~C. | x 100 terminals AL Ar Ay Ae 8 Br By Be Cy Cr Cs Co Di Di cesistor
A “ 0,~O. } = 1000 10000 000 060 000 0 0
4 6 10000000 0 00 0 0
Voo_IN 1 1000 0000000 0 0
4 0 0 100000000 0 0 2,
4 1°01 00 000 000 0 0 0
ce) 1 1 o 0 0 0600 0 0 6 0 0 Qo
EE a
Voo Pin At A2 AB Aa Bt B22 B3
4 Fig. 3 TC9122P (PLL unit, 1C3) Table 4 TC9122P (PLL unit, IC3)

TR-773(
CIRCUIT DESCRIPTION
XT xT XTOUT CONTROL CIRCUIT (X53- 1230-10)
Fig. 6 shows a block diagram of the control circuit, which
uses a microprocessor to minimize the number of per-
ipheral circuits.
@ Frequency Indicator
The frequency indicator uses a 4 digit dynamically driven
LED display. The BCD data from the microprocessor D
port (pins 8~11) is converted by decoder driver 1C2 (TC
5022BP} into the segment signals which are applied to the
corresponding segments of all digits. The signals from the
E port (pins 12~15) turn ON Q7 through Q10 (2SC1959)
to light the digits.
VOD GND ow 46 atisi0 08 @ PLL Data (Frequency Dividing Data}
The frequency dividing data is output from ports D, E, G,H
PIN NO 8 7 6 4 1 and | (pins 9~11, 12, and 22~32) in BCD. It is 550 when
PIN
NAME
Q,
Qh
On
Qu
|
XTout
“VF
is
displayed,
650
when
5.7/7
is
displayed,
749
when
—_
Dividing
ratio
|
1/256
|1/1024|
1/2048]
1/4096
|
1/1
5.44
is
displayed
and
1049
(K,
Monly)
when
2.4%
is
displayed.
seatbut frequency] 40 kHz |10 kHz| 5 kHz |2.5 kHz | 10.24 © Reset Circuit
; Current flows through D36 when the power source voltage
Fig.
4
TC5082P-GL
(PLL
unit,
1C2)
supplied
to
the
microprocessor
exceeds
about
3.5V.
The
collector voltage of O5 (2SC1815 (Y)}) then becomes H and
a pulse is generated by the CR differentiating circuit. This
| | | f | FL. pulse is applied to and resets the microprocessor.
SIN
@ Switch Circuit
Rin | | | | | | [ | One terminal of each contro! switch is connected to one of
the control pulse signal output terminals of the micropro-
Poor — HIGH IMPEDANCE JL _-- JL —_--- cessor and the other terminal to one of the input terminals.
Ly When a control switch is turned ON, the corresponding
PHASE OUT Ise signal is input to the corresponding input ter-
TP LI LJ output pulse sig p p g inp
minal and the prescribed function is performed Diodes are
used to prevent the control pulse signals from being input
to the wrong circuit.
@ Encoder and UP/DOWN Switch Input Circuit
The mechanical encoder output signals are appl ied to the
Schmitt circuits formed by I1C102 (TC7404UBP}, then
R @-tdo BD: applied to part A (pins 33~36) of the microprocessor. The
microprocessor judges UP/DOWN and counts the number
POour of applied pulses. One turn of the dial equals 50 step
P output.
—{ >» ® Scan Circuit
f Scan operation is controlled entirely by the micio processor .
—@ voo It starts when the SCAN switch is pressed andstops when
either the HOLD switch is pressed or the transmit signal
imc vss (8T) becomes H. Scan operation temporarily st ops when
; the squelch stop signal (input to the SS termiml ) becomes
Fig. 5-A TC5081P (PLL unit, 1C1) Timing chart
Voo
, H. Variation of the frequency dividing data for the least
PHASE . oe woe, oe . . oo
OUT significant digit is detected by the circuit crtsisting of
Q1, Q2 and the OR circuit D10~13 so tha a pulse is
Ain @—f>o— Aout obtained every time the data changes. This pulse signal is
; . ; . applied to the scan stop terminal (pin 4) of the Micropro-
Fig. 5-B TC5081P (PLL unit, 1C1) Equivalent circuit cessor to momentarily suspend slow scannity after the
frequency has been changed.

TR-7730
CIRCUIT DESCRIPTION
LED
7 Decoder
~ 9997007 river
ie ie ic2
E3%E2461 4E0
15
414
113
[12
Latch
ICc3
4
89,10,11 EO
4 —— EO 5kHz data
= “ °
( GE 10 kHz data
ForPLL
MHz
data
Abit
2bit PLL
| H = > 100 KH? data
q 19 leh 19-40 “pr
ch 19—
V Memory 2en 19-39 {C1 ——_&—=—_—— MHz data
. channe 3ch 19-38 Sbit
@ M switch 14438 switch ach 19-+37 INT
@
MR
switch
14-37
Sch
19-+37.38
+)
@ SCAN Ni Vec ~~
switch 1337 on RES
@ HOLD 7 c A mu Reset by
switch 1340
@ MS switch 13-38 4 2
2 +f 33,34 35,36
. UP/DOWN
Schmitt switch
(MIC)
Power supply |
4° Transmit signal (8T) for backup
Squelch stop signal (SS) Rotary a Other circuit
encoder
Power supply
IC4
Fig. 6 Control unit block diagram POWER SW
Pin] Pin | input [Output Note Pulse Pin| Pin | Input | Output Note Pulse
No. signal | signal signal No, signal | signal signal
1 CL1 Clock signal 400 kHz (Level at 14500 MHz)
2 {Poo Normally L 23 [pot © |b |toKte deta signals I
z data signals
3 |Pci_ | 0 Normally L 24 |PG2 o |e [for PLL me
4 |PC2 i) Squelch signal, SCAN stops 25 |PG3 o |p iL
when H. 26 |PHO OIA rH
5 PC3 ie) Normally L, H during transmis- 27 ~|PH1 o |p | 100 kHz data ! L
sion. 28 |PH2 o. Ic {signals for PLL 4
6 INT [e) Normally H 29 IPH3 Oo |D ia
7 RES ° Microprocessor is reset when H. 30 |PIO O JA )1MHzdata im
8 PDO re) fo) oO 31 = jPIi oO |B | sont for | H
9 |PD1 ro) re) 10 kHz, 100 kHz, and MHz ro) 32 |PI2 oO {C /PLL iH
10 |PD2 [e) Oo digit signals are output. ie) 33 |PAO [e) Encoder signal
11 [PDs ° © ° 34 |PAI [@) Encoder signal
12 |PEO OQ |5kHz digit signal is output. ie) 35 |PA2 Oo Normally 4, L when MIC UP
13 |PE1 O {10 kHz digit signal, SCAN, o) switch is pressed.
HOLD or M.S is output. 36 |PA3 O Normally H, L when MIC
14 |PE2 O {100 kHz digit signal, Mor MR ie) DOWN switch is pressed.
is output. 37 |PBO fo) MR, SCAN, Memory CH4 or} ce)
15 |PE3 O11 MHz digit signal is output. re) pulse signal is input.
16 |PFO Not connected. 38 |PB1 e) M, MS, Memory CH3 or 5 pute ie)
17, (PFI O | \1MHzdata signals | L signal is input.
18 IPF2 fe) for PLL UL 39 |PB2 (e) Memory CH2 pulse signal is 1°)
19 |PF3 © jMemory output signal fo) - input. 5
20 [TEST Normally H 40 |PB3 | 0 sional aia CH1 pulse
21 Ice 5V power supply a1 GND GND -
42 |CLO Clock signal 400 kHz
Table 5 Microprocessor Functions .PD650C-021 (Control unit, 1C1)

TR7dl
CIRCUIT DESCRIPTION
@ Power Supply for control system
Transistor O6 (2SC496 (Y)) generates 5V for the frequency
display. A 6V AVR (Automatic voltage regulator) IC (1C4 :
NJM78LO6K) supplies power to the microprocessor through
diode D18.
@ Backup Circuit
The level at the microprocessor INT terminal becomes L
when the POWER SW is turned OFF, and the micropro-
cessor enters the backup mode. In this mode, all output
ports are low to minimize power consumption. At power
OFF, the backup supply is 024 (2SC2603 (E)) on the
RX.TX unit.
When the POWER SW is turned ON, the levels at both the
INT (pin 6) and UP/DOWN (pins 35 and 36) terminals be-
come H, returning the microprocessor to operation as be-
fore the POWER SW was turned OFF.
Input port B pins (87~40) are grounded by Q3 and O4
when the POWER SW is turned OFF, and scan operation is
stopped by momentarily simulating the transmission mode
through Q11.
Upper =
Pin No. 24 13
ean
|
FM
81
@>
AM
“p
a
RBI
(2
1)
RBO
TTT
PM
Alarm
ORIVER
|
ORIVER
|
Lic
=
~
+}
borers
i
5)
0
|
*—
Voo
:
Pin
No.
1
dol
TCower
do2
1
@
L
@e
|
)
(aes
[Colon
\sea
°®
aco
TO
ac
|
L
l
7-
SEGMENT
NB)
4
!
oer
|
Cc
é
{pe
'
:
©
necooes
io.
|
|
PIN
NO
FUNCTION
PIN
NO
FUNCTION
0
®
9)
9
|
l
1
PM
Anode
13
FM,
Alarm
Cathode
L-—4
Lo
=
2
Dig
1
Cathode
14
FM
Anode
. .
.
.
.
3
Seg
d
Anode
15
Sega
Anode
Fig.
7
TC5022BP
(Control
unit,
1C2)
Equivalent
circuit
4
dp
1
Anode
16
dp
2
Cathode
5
Dig
2
Cathode
17
Upper/Lowe
Colon
Cathode
INPUT
OUTPUT
6
Lower
Colon
Anode
18
Seg
f
Anode
BI
URBI
A
YB
pc
yD
pea
bh
pe
fd
fe
fT
ets
7.
|
Upper
Colon
Anode
19
|Segb
Anode
H
|
«
fe
*
*
*
L
L
L
L
L
L
L
|
L
|
oH
L L
L
L
[
L
L
L L
{|
Lb
L L
H
8
Dig
3
Cathode
20
Seg
c
Anode
L
[ok
L
L L L
H H
H
H
H
H
L
L
L
*
H L
L L
L
H H
L
L
L
L
L
9
dp
2
Anode
21
dp
1
Cathode
L
[=
[oL
H
L
L
|
H
H
L
H
H
L
H
L
;
Lo
7
7
7
7
7
7
7
7
7
7
7
3
10
Dig
4
Cathode
22
Seg
g
Anode
Boje
pepe
|RH
PERE
PE
PTH
TR
PE
Pe
|
aa
11
Sege
Anode
|
23
|AM
Anode
L
|
om
H
L
H
L
H
L
H
H
L
H
H
L
L
|
oe
L
H
H
L
H
L
H H
H
H
H
L
12
Alarm
Anode
24
AM,
PM
Cathode
L
[of
H H
H
L
H H H
L L
H
L
L
L
|
om
L
L
L
H H
H
H
H H
H
H
L
Ea
eB
OO
ee
Fig.9
4-digit
LED
LN543RK
(Display
unit,
D1)
L
| L
H
L
H H
H H
H
H
H
L
L
L
|»
H
H L
H L
H
H
L
L
L
L
L
L
|
so
L L
H
H
H
H L
H
H L
H
L
L
[so
H L
H
H
H
H
H
H L
L
H
L
L
|
oe
L
H
H
H L
H
H
L L
H
H
L
L
|
H
H
H H
H
L
H
H
L
H H
L
4
wy
;
Undetermined
a
|
*%
;
Don't
Care
GND
Eq
7
ce]
Vin
Table
6
TC5022BP
(Control
unit,
1C2)
Truth
table
Vref
MIN.
[2
3]
Vref
MAX.
4
2
vo1G}-<[-4
4]
Vcc
oar
-oO
TT.
INPUTS
OUTPUT
CLOCK
_)>
ce
at
3
do
|
ptt
4+
POLARITY
73 CLOCK
A
POLARITY
On
*
Vo2
EE
_
pe
|
V010
bi
pn
gta,
'
'
cz
iT
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oy
V
Vo3
[5
2
09
gop
GLa
$
L
L
J
d2
1s
D
ott!
go
Vo04
[e-~<T
—>—t
Vo8
4
L
LATCH
3
;
—_
{2
-
@e4cp.
o}——~d2
Vo5
Gt<
{4
t“t>—J
vo7
14
y
H
LATCH
,
5
°
os
ie
Dimmer
Vss
¢
8V
Lice
Gb"
93
4
Level
change
control
E
>
5B
vos
Voo.
16V
*
n:0~3
Table 7 TC4042BP Truth table.
Fig. 8 TC4042BP Block diagram
Fig. 10 TA7612AP (Display wa t, 1C1)

ECGLOSTS
GL8LDSZ
GLOLVSZ
£09ZOSZ 96V0SC O979SZC 8ESZOSZ
8S00SC
SLLLVSZ
W1-29SVSZ
=
=
2)
~J
©
[-
©
ea)
>
PLASE
(AdAL IN‘) (OL-OSVL-VPX) LINN XL’XHA
Q1,4: 3SK74(L) Q2 : 2SC2538 Q3: 3SK76 or 3SK92 Q5, 7~10 : 2SC460(B) O6 : 2SC1923(0) 011~14 : 2SC1815(Y) 015~18, 20, 23, 24 : 2SC2603(E)
O10 - SCATTISIE) 094,96 97 - 96C408IY) 0229, 28 20 : 25C458(B) 026 : 2SA1015(Y) 032 : 2SA562TMLY)
IC1 : TA7302P IC2 : TA7OG1AP IC3: HA1366W IC4 : uPC78LO8A
D1, 4~7, 12, 13,15, 20: 181555 D2, 3,8~11: 1N6O0 D14: 181212 D16: XZ-060 D17 : XZ-070 D18: XZ-100 D19: XZ-090 D23, 24 : WZ-040
MalA apis S}JUgUOdWIO)
M3IA GUV08 Od OCJI-ME

++
> >
SIN
GO
[on o>)
Np =
0 >
>
r
>
WwW
Oo
©
=
y
~ A
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GDH
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ed 53
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a. c
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=
A
2D
aa
86
93
(qo)
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he
Z fn
° -
a oO
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A
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aa
O38
—- “>
7 LQ
Q3
O
tS
V
28
3 a N
3
ccc
Rae \+
oOo oO
EE!
aag
B88
cc cle
an wna wm
Oo od Oo
Qa aoa
Q1,4. SOK/4(L] QZ: 2502088 3: 35K76 or 35K9Z2 Q5, 7~10 : 2SC460(B) OG : 2SC1923(0) Q11~14 : 2SC1B15(Y) Q15~18. 20, 23, 24 : 2SC2603(E)
Q19 : 2SA1115(E) O21, 25, 27 : 2SC496(Y) O22, 28~31 : 2SC458(B) Q26 : 2SC1015(Y) O32 : 2SA562TM(Y)
IC1 : TA7302P IC2: TA7O61AP IC3: HA1366W_ 1C4 : uwPC78LO08A
D1, 4~7, 12, 13,15, 20~22 : 1$1555 D2,3,8~11:1N60 D14: 181212 D16: XZ-060 D17: XZ-070 D18: XZ-100 D19: XZ-090 D23, 24 : WZ-040
(AdAL M‘L) (L9-‘LS-OSVL-VYX) LINN XL XY A
MBIA Opts S}JUsUOdUWIO)
EZ 7-HL M3aIA GdV08 Id

TR:7730
Pc
BOARD
VIEWS
WFINAL
UNIT
(X45-1190-10)
0) I
Components
side
view
2SA1015
28C1775
2801815
2801923
25C1959
2802240
2SC460
25C496
E
2SC2603
NN
B
ge ©
2SK19
NJM78LO6K
GNO
ouTPUT
TC5081P
TC5082P
1SS99
1N60 D4,6:
: MI-402 D2: MI-303 D3:
: VP-15E1305 D1
1 C
GL
Transistor
terminal
indication
V
PLL
UNIT
(X50-1750-10)
|=
Components
side
view
Q1:
2SK19(GR)
Q2,
12
:
2SC1923(0)
03,4:
3SK74(L)
Q5,9~11 : 2SC460(B) O6 : 2SC1775(E) Q7 : 25C2240(GR )
Q8
:
2SK30A(O)
IC1
:
TC5081P
IC2:
TC5082P-GL
IC3
:8C9122P
D1,2:
182208
D3:
182588
D4,5,9,
10,
12,14:
BA2438
D6~8
:
181555
D11,13
:
1N60

Ww
CONTROL
UNIT
(X53-1230-10,
-61)
-10:K,M
-61:T,W
Components
side
view
Q1~3,
5:
2SC1815(Y)
Q4,
11
:
2SA1015(Y)
Q6
:
2SC496(Y)
Q7~10
:
2SC1959(Y)
IC1
:
wRD650C-078
IC2
:
TC5022BP
IC3
:
TC4042BP
IC4
:
NIM78LO6K
D1~3,
8~15,
22~31,
33,
34
:
1N60
D4~7, 16~20, 35, 37~39, 41 : 181555 D21 : XZ-060
D32: 1N60 (T, W only) D386 : MA522 (Q) D40 : XZ-090
Pc
BOARD
views
IR=/7/3
W CONTROL UNIT (X53-1230-61)
T,W
TYPE
ONLY
Components
side
view
<
Attachment
direction
of
D386
:
MA522
>
<
Attachment
direction
49 >
of
R1
MARK
0,
15,
/,
Lo
a—
VY
SCHMITT
BOARD
(J25-2755-14)
Components
side
view
RED BLK YLW
Q12: 2SC2603(E) 1C5:TC4011BP
D42:
1N60
W
M.
CH
BOARD
(J25-2715-04
Components side view
GRN
--—
ORA
-—
BRN
WHT
x
z
a)
g
a]
oO
Clo
1C102
:
TC7404UBP
~
=
¥
2
OQ
&
2D
+
@
wee
-
¥
RPT
BOARD
(J25-2744-04)
Go
roo
a
Components
side
view
E
E
!
=
z
(R
V
10k/5k
or
25k/5k,
HE/LOW
BOARD
(J25-2756-04)
Congsonents
side
view
YLW ———
WHT/ BLK
BRN
WHT/BRN
BLK

TR:-7730 Pc BOARD VIEWS
©
ad
O ORG VW DISPLAY UNIT (X54-1520-11)
=
G2
K
Foil
side
view
~|> S
BLK
LN233RP
LN333GP
LN433 YP
BLU
YEL % Sy
1C1 : TA7612AP
D1 > LN543RK
D2,4 : LN333GP
D3,11,12 : LN233RP
D5~10 : LN433YP
a) oO O} >~
= Ol WwW
YEL Wd S Ol > &
LW
‘| WHT
NN
2NSNGNENEXTIBNO)
ao}
S|
ch
alo
©
NIN
Ot
Ww
;
rcs
guna
Nut
Back
board
ound screw ; ; (BO8-0302-04)
co. (N30-2020-46) (N10-2020-46)
Foil
side
D2
4
Flat washer D3 1112 Green
ee INTS: 1020-40) 05~Di0... Yellow
Earth lug |
“_ {£23-0426:05) {t0-
PC
board
(B)
aha
replacing
Z
ee ~ 10, an
Collar x 2 D12, pay attention
(J31-0515-14) to their uneveness in
=— PC board (A)
LED case
(BO7-0629-03)
Vv M, MR BOARD (J25-2757-14)
F oil side view Foil side view
BLK
BLK
color.
Vv M.S, TONE BOARD (J25-2757-14)
LED case
(BO7-0629-03)
Vv SCAN, HOLD BOARD (J25-2758-14)
Components side view
WHT ORA
WHT/BLK
WHT /BLK
/
BRN
VA

TR°773¢
PARTS LIST
Note 1: 3. Resistance value
K:
U.S.A.
T:
Britain)
W:
Europe
xX:
Australia
———
7]
Note 2: xs 1
Only special type of resistors (example: cement. metal film. etc.) and @@®@ @- means 22 x 10? = 22008 (2.2 kM)
capacitors (example: electrolytic. tantalum, mylar. temp. coeff. capacitors) ‘Example:221 + 2200 223 -» 22 kQ 225 + 2.2 MQ
are detailed in the PARTS LIST. For the value of all common type com- 222 4 2.2 kX 224 -+ 220 kQ
ponents, refer to the schematic diagram of the P.C. board illustration
Resistors not otherwise detailed are carbon type (1/4W or 1/8W).
. : : 4. Tolerance
Order carbon resistors and capacitors according to the following example: e
;
J
=
+5%
(Gold)
K
=
+10%
(Silver)
A
carbon
resistor’s
part
number
is
RDI4BY
2E222J.
A
ceramic
capacitor’s
number
is
CK45F1H103Z,.
CC45TH1H220J.
CAPACITORS
RESISTOR
Type
|
Type
Il
1.
Type
of
the
carbon
resistor
Cc
45
TH
1H
220
J
CK
45
F
1H
103
2.
RD14BY
RD14CY
1’
2
3’
4
5
6
1
2
3
4
5 6
sa
14BB
(smail
size)
RD14CB
(small
size)
1
=
Type
.....
ceramic.
electrolytic,
etc
4
=
Voltage
rating
2
=
Shape
round,
square,
etc
5
=
Value
2.
Wattage
3
=
Temp
range
6
=
Tolerance
iW
>
3A
3W
—
3F
5W
-
3H
3'
=
Temp
coefficient
2wW
>
3D
4W
+
3G
3'
=
cc4500..
Ceramic
capacitor
(type
I)
temperature
coeff.
capacitor
1’
3’
Ex.
CC45TH
=
—470
+60
ppm/°C
Ist
word
c
L
P
R
s
T
U 2nd
Word
G
H
J
K
L
(Color)
|
(Black)
|
(Red)
{Orange)|
(Yellow)
|(Green)
|
(Blue)
|
(Violet)
ppm/ec_
|
+30
|
+60
|
+120
|
+250
|
+500
ppm/°C
0
—80
|
—150
—220
—330
|
—470
|
—750
5
=
Capacitor
value
3
=
CK45
0
Example: 010 > 1 pF
Ceramic capacitor (type {1} 3
100 + 10 pF
Cord B D E F 101 + 100 pF
Operating
temperature
—30
{|
—30
|
—30
|
—10
102
+
1000
pF
=
0.001uF
°C
+85
|
+85
|
+85
|
+70
103
+
0.01
pF
6 = Tolerance
Cord c D G J K M x Zz P No cord
+40 | +80 |+ 100] More than 10 nF —10 ~ +50
—~20 ;} —20 | —O | Lessthan4.7,F —10 ~ + 75
(%) |+0.25} +05 | +2 +5 +10 | +20
Less than 10 pF cC45
CK45
Cord B c D : Color
(pF)
+0.1
|
$0.25
|
+05
+1
+2
-
1
Abbreviation Abbreviation |
Cap.
Capacitor
ML
Mylar
Type
|
Type
Hl
Cc Ceramic S Styren
E Electrolytic T Tantalum
MC Mica
TR-7730 SEMICONDUCTOR xr: New parts
Item Name nace Parts No. Item Name maces Parts lo.
Diode IN60 V11-0051-05 Zener diode | WZ-040 V11-4102-50
181555 V11-0076-05 XZ-060 V11-4101-20
182588 V11-0414-05 XZ-070 V11-4161-96
1Ss99 V11-1277-86 XZ-090 V11-4167-06
XZ-100 V11-4104-10
BA243S V11-7767-06
MA522 (Q) V11-1173-46 LED LN233RP V11-1173-06 Red
M1303 V11-5273-66 LN333GP V11-1173-16 Green
M1402 V1i1-5260-16 LN433YP V11-1173-26 Amber
U05B V11-0270-05 LN543RK V11-1173-36 4 Digit
Vari-Cap 182208 V11-0317-05 Thermistor | D33A V11-3161-86
Varistor 181212 V11-1262-06
13

TR-7730
PARTS LIST
Item Name mack Parts No. Ref. No. Parts No. maces Description
TR 2SA562TM (Y) V01-0562-16 BQ7-0636-04 wx | Side escutcheon x 2
2SA1015 (Y) V01-1015-06 B10-0629-04 Front glass
2SA1115 (E) V01-1115-16 B40-2571-04 vy | Model! name plate K,M
B40-2572-04 Ww Model name plate T
28C458 (B) V03-0093-05 B40-2573-04 ¥x | Model name plate Ww
2SC460 (B) V03-0079-05 B46-0058-10 Warranty card K
2SC496 (Y) V03-0336-05 B50-3911-00 Ww Operating manuai K,M
2$C1775 (€) V03-1775-06 B50-3912-00 % | Operating manual T
2801815 (Y) V03-1815-06 B50-3913-00 ve | Operating manual WwW
2SC1923 (0) V03-1923-06
2SC1959 (Y) V03-1959-06 C101 CC45SL1H470J Cc 47pF
2S$C2240 (GR) V03-2240-06 C102, 103 |C91-0430-05 Lamineted cap. 0.047pF
2SC2538 V03-2538-06 C104~113 |C91-0469-05 Cap. 0.001pnF
2$C2603 (E) V03-2603-06 C1 18, 118, |CC45SL1H470J C 47pF
: 11
FET 2SK19 (GR) TRIO-5 V09-1001-16
2SK30A (0) V09-0056-05 E06-0651-05 6P male socket MIC
E07-0651-05 6P metal plug Mic
3SK74 (L) V09-1002-56 E12-0001-05 Phone plug (accessary)
3SK76 V09-1012-06 E30-1689-05 sy | DC cord (C) (accessary}
3SK92 V09-1006-16 E31-2074-15 Connector with lead (B)
Power VP-15E1305 vw |V30-1240-26 FO5-6021-05 Fuse 6A (accessary)
module
{Ic HA1366W V30-1045-06 GO02-0518-04 Gnd spring (C) x 2 Helical
G10-0607-04 Cushion cloth x 4 120x 4mm
NJM78LO6K V30-1067-06 G10-0611-04 Cushion cloth (B) 30 x 13mm
G10-0612-04 Cushion cloth (C) 150x 45mm
TAT7O61AP V30-0039-05 G10-0613-14 Cushion cloth {(D) 140x 24mm
TA7302P V30-1134-06 G10-0615-04 | ¥ | Cushion cloth (E) x 2
TA7612AP
V30-1169-06
73
x
15mm
Case
TC4011BP
V30-0301-70
G13-0638-04
Cushion
(A)
x
2.
53x
24x
5mm
TC4042BP
V30-1052-06
G16-0503-03
Conductive
rubber
sheet
TC5022BP V30-1054-06
TC5081P V30-1132-06 H01-2760-03 wx | Carton case (inside) K, M, W
TC5082P-GL V30-1147-06 HO1-2761-03 | + | Carton case (inside) T
TC7404UBP V30-1028-06 H10-2536-04 Packing fixture (B)
TC9122P V30-1036-16 H10-2551-02 | % | Packing fixture (A)
H12-0474-04 Cushion
HPC78LOBA V30-1030-26 H20-1417-03 Protective cover
uPC78MO08H V30-1222-16 H25-0029-04 Protective bag Boss
H25-0049-03 Accessary bag
Micro- uPD650C-078 V30-1219-16 H25-0079-04 Protective bag = MIC
processor H25-0103-04 Protective bag Cord
J02-0022-05 Foot x 2 (accessary) Rear
JO2-0420-04 Foot (accessary) Front
J21-2676-04 Foot mounting hardware x 2
Re-
——
(accessary)
Ref. No. Parts No. marks Description J25-2715-04 PC board M.CH
J25-2744-04 PC board (E) RPT
TR-7730 GENERAL J25-2755-14 PC board (A) Schmitt
AQ1-0905-03 te Case (upper) J25-2756-04 PC board (B) 10k/5k,H/L
A01-0906-03 | | Case (lower) J25-2757-14 PC board (C) M/MR, M.S/TONE
A13-0618-22 Angle assy (accessary) J25-2758-14 PC board (D) SCAN, HOLD
A20-2433-04 xx | Panel J32-0748-04 Boss x 4 (accessary)
B01-0639-03 | st | Panel escutcheon K, M K21-0752-03 Main knob
BO1-0640-03 vy | Panel escutcheon T K23-0736-04 Knob {A) x 2 VOL, SQU
BO1-0641-03 | # | Panel escutcheon Ww K23-0737-04 Knob (B) M.CH
B03-0517-04 Switch mask x2 M, MR K23-0743-04 Knob (C) RPT
B03-0518-04 Switch mask x 4 5k/10k, H/L, K27-0416-05 Push knob (A) M
TONE, MS K27-0417-05 Push knob (B} MR
BO5-0714-04 sp grill cloth K27-0418-05 Push knob (C) x3 we H/L,
14

TR773C
PARTS LIST
Ref ~No. Parts No. necks Description Ref. No. Parts No. mack Description
K27-0419-05
Push
knob
(D}
MS
C25
C91-0131-05
Cc
0.014F
K27-0420-04
Push
knob
(E)
x
2.
SCAN,
HOLD
C26
CC45CH1HOSOC
Cc
5pF
+0.25pF
C30 CC45SL1H151J Cc 150pF
NO9-0008-04
Round
screw
x
4
Angle
(accessary}
C32
CC45CH1H150J
Cc
15pF
N13-0302-04 Ornamental nut M. CH C33 CQ92M1H393K ML 0.0394F 50V
N14-0510-04 Flange nut x 4 Angle (accessary) C34 CQ92M1H223K ML 0.022uF 50V
N14-0512-05
Speed
nut
x
3
C35
CEO4W1A101M
E
100uF
10V
N15-1020-46 Flat washer x 2 C36, 37 CO92M1H473K ML 0.047uF 50V
N15-1060-46 Flat washer x 4 .Angle (accessary) C38 CQ92M1H393K ML 0.03QuF 50V
N16-0060-46 Spring washer x 4 Angle (accessary) | | C39 CQ92M1H103K ML 0.01pF 50V
N30-2004-46 Round screw x 20 C41~43 CQ92M1H223K ML 0.022uF 50V
N30-2020-46 Round screw C47 CC45SL1H470J c 47pF
N30-2604-46 Round screw x 23 C50, 53 CQ92M1H222K ML 0.0022uF 50V
N30-3004-46 Round screw x 5 C54 CQ92M1H473K ML 0.0474F 50V
N30-3006-46 Round screw C55 CQ92M1H102K ML O.001npF 50V
N32-2604-46 Fiat screw x 7 C56 CQ92M1H223K ML 0.022uF 50V
N32-2606-45 Flat screw x 4 C57 CQ92M1H222K ML 0.0022uF 50V
N33-2605-45 Round flat screw x 13 c58 CQ92M1H332K ML 0.0033uF 50V
N33-2606-45 Round flat screw x 10 c59 CQ92M1H222K ML 0.0022uF 50V
N35-3006-45 Bind screw x 6 (accessary) c60 CQ92M1H393K ML 0,0394uF 50V
N35-3012-45 Bind screw x 4 {accessary} C61, 62 CQ92M1H223K ML 0.022uF 50V
C63 CE04W1A470M E 47 pF 10V
VR101 |RO5-3410-15 Pot. 10k& (A) with SW) VOL C64 CS15E1A220M T 22uF 10V
VR102 |RO5-4405-05 Pot. 50kQ (B) SQU C65 CQ92M1H103K ML O.01pF 50V
C66 CQ92M1H392K ML 0,0039y2F 50V
$01-1421-05 Rotary switch RPT C67 CS15E1VOR1M T 0.1 pF 35V
$01-1422-05 Rotary switch M. CH C68 CC45CH1H220J Cc 22pF
$40-1401-05 Push switch x 2. MS, H/L C69 CQ92M1H103K ML O.01pF 50V
$40-1402-05 Push switch M C70 CC45CH1H220J Cc 22pF
$40-2417-05 Push switch x2 10k/5k, MR C71 CS15E1A100M T 10uF 10V
$40-2417-05 Push switch TONE K, M, T C72 CQ92M1H332K ML 0.0033y44F 50V
$40-2421-05 Push switch TONE Ww C73, 74 CS15E1C3R3M T 3.3uF 16V
$50-1406-05 Tact switch x 2 C75 CS15E1C4R7M T 4.7 uF 16V
S59-1405-05 Key board switch x 2 SCAN, HOLD | | C78 CS15E1VOR1M T O.1pF 35V
c79 CE04W1A330M E 33 uF 10V
T07-0216-05 Speaker C81 CS15E1VOR1M T O.1uF 35V
T91-0311-05 Microphone T C82 CE04W1A220M E 22pnF 10V
T91-0313-05 Microphone K,M,W C83 CS15E1C4R7M T 4.7 uF 16V
C84 CE04W1A330M E 33yF 10V
W02-0316-05 Rotary encoder C85 CE04W1HO10M E TF 50V
C86 CQ92M1H103K ML O.O0%pF 50V
X44-1450-10 Ww RX.TX unit K,M C88 CQ92M1H473K ML 0.047%F 50V
X44-1450-51 ve | RX.TX unit T c89 C91-0131-05 Cc 0.01,F
X44-1450-61 w RX.TX unit Ww c90 CE04W1HO10M E TF 50V
X45-1190-10 w Final unit cgi CQ92M1H332K ML 0.003;2F 50V
X50-1750-10 ve |PLL unit c92 CE04W1A101M E 100puF 10V
X53-1230-10 vy =| Control unit K,M C93 CE04W1A470M E A7 BF 10V
X53-1230-61 % | Control unit W,T c94 CQ92M1H102K ML O.001F 50V
X54-1520-11
Display
unit
cg5
CC45SL1H101J
Cc
100pi
C96 CE04W1A470M E A7 pF 10V
107 KOM C97 CEO4W1A101M E 100zF 10V
. 7 . . . 7K, c98 CQ92M1H104K ML O.1uF 50V
RX.TX UNIT (X44-1450-10, -51, -61) 51:T -61:W||cog CEOAW1HOIOM cE luk cov
C1 CC45CH1H220J Cc 22pF C100, 101, 103 | CEQ4W1A470M E 47 uF 10V
C4, 5,7 | C91-0131-05 Cc 0.01 uF C105, 106 C90-0820-05 E 470p! 16V
c8 CC45CH1HO60D Cc 6pF +0.5pF C107 C91-0131-05 Cc O.01eF
C11 CE04W1C100M E 10xuF 16V C109 CE04W1C100M E 10mMF 16V
C13 CC45CH1H220J Cc 22pF C111 CE04W1A470M E A7 mF 10V
c16 CC45SL1H101J Cc 100pF C113,115 CE04W1C100M E 1OuF 16V
cig C91-0131-05 Cc 0.01uF C116~118 CQ92M1H392K ML 0.00%2F 50V w, T
C20 CC45CH1H180J Cc 18pF C119 CE04W1HO10M E TF 50V W, T
C21 CC45CH1HO50C Cc 5pF +0.25pF C120, 121 CS15E1A220M T 22yuF 10V W, T
C22 CC45CH1H220J c 22pF C126 CC45SL1H101J Cc 100pI
C23 CC45CH1HORSC Cc 0.5pF +0.25pF C127 CE04W1HO10M E pF 50V W, T
15

TR-7730
PARTS LIST
Ref. No. Parts No. mn eks Description Ref. No. Parts No. meeks Description
C129
CS15E1A150M
T
15pF
10V
T/}]c10
C91-0466-05
Cap.
0.0014uF
C130
C91-0131-05
Cc
0.01uF
C11
CC45SL2H330J
c
33pF
500V
C131
CS15E1A150M
T
15uF
10V
Ty]
C12
CC45CH1HORS5C
Cc
0.5pF
+0.25pF
C132
CE04W1HR47M
E
0.47uF
50V
C13
CC45CH1HO30C
Cc
3pF
+0.25pF
C139~141
|C91-0131-05
Cc
0.01
uF
c14
CC45SL2H3305
Cc
33pF
500V
C15 CC45SL2H100D c 10pF +0.5pF SO00V
TC!
CO5-0030-15
Ceramic
trimmer
20pF
C16
CC45CH1HOR5SC
Cc
0.5pF
+0.25pF
Ci7 CC45SL2H2205 c 22pF 500V
E23-0046-04
Square
terminal
x
3
cig
C91-0131-05
c
0.01
4F
C21 CC45SL2H150J Cc 15pF 500V
J1~5
E40-0273-05
Mini
connect
wafer
2P
C30,
31
|
CC45SL1H101J
Cc
100pF
J6
E40-0673-05
Mini
connect
wafer
6P
C35
CE04W1C221M
E
220uF
16V
J7 E40-0773-05 Mini connect wafer. 7P
J8
E40-0273-05
Mini
connect
wafer
2P
J1
E31-2093-05
we
|
Coax.
connector
with
2P
lead
JQ
E40-1173-05
Mini
connect
wafer
17P
J2
E40-0373-05
Mini
connect
wafer
3P
J10
E40-0873-05
Mini
connect
wafer
8P
J3
E31-2093-05
xx
|
Coax.
connector
with
2P
lead
J11
E40-0673-05
Mini
connect
wafer
6P
Ja
E04-0152-05
UHF
type
receptacle
Ji2
E40-0273-05
Mini
connect
wafer
2P
J5
E11-0403-05
Phone
jack
J6 E08-0304-05 Power jack Backup
L1
L33-0002-05
Choke
coil
1pH
J7
E40-0373-05
Mini
connect
wafer
3P
L2
L34-0948-05
Tuning
coil
E23-0046-04
Square
terminal
x
6
L3
L34-0452-05
VHF
coil
36
6T
E30-
1688-05
we
DC
cord
(D)
with
6A
Fuse
L4 L34-0691-05 VHF coil 5¢ 5T
L5
L79-0482-05
vw
|
Helical
resonator
(A)
4
MHz
2pole
FO1-0760-05
wx
|
Heat
sink
L6 L79-0483-05 vr | Helical resonator (B) 4 MHz 3pole FO5-6021-05 Fuse 6A
L7,8 L30-0281-05 [FT 10.7 MHz
L10
L30-0504-05
IFT
455kHz
J41-0006-05
Cord
bushing
DC
cord
Li1 L30-0503-05 {FT 455 kHz
L12
L40-6825-04
Ferri-inductor
6.8mH
L1
L34-0951-05
Coil
(A)
Ad
2.5T
L13
L40-1021-03
Ferri-inductor
1ImH
L2
L34-0438-05
Coil
0.94
4H
Li4
L40-1541-27
Ferri-inductor
150mH
L3
L34-0952-05
Coi!
(B)
4
5.5T
Lis
L15-0016-05
Choke
trans.
14,5
L34-0953-05
Coil
(C)
Ad
3.5T
L16
L40-1511-03
Ferri-inductor
150uH
L6
/L33-0025-05
Choke
coil
1H
L17 (A), (B))/L71-0219-05 MCF 10.7 MHz L7 L39-0409-05 Detector coil
Li8
L72-0315-05
Ceramic
filter
CFW455F
L8
L33-0002-05
Choke
coil
ThH
L19
L79-0446-05
Ceramic
discri
CFY455S
LQ
L34-0955-15
Coil
(E)
46
3.5T
L20
L34-0683-05
Tuning
coil
L10
L33-0074-05
Heater
choke
L11 L33-0002-05 Choke coil TuH
x1 L77-0327-05 Crystal 10.245 MHz
N30- 2604-11 Round screw x 7
N30-3008-11
Round
screw
x
2
1C
N30-2606-
11
Round
screw
x
2
Back
up
N35-3006-46 Bind screwx2 Module
R96 R92-0616-05 Metal film 10k9 41% 1/4W W,T
R101
RCO5GF2HS5R6J
Solid
5.62
1/2W
R3
R92-0144-05
Metal
film
12
R107 R92-0616-05 Metal film 10kQ2 41% 1/4W W,T
R108
RN14BK2E4703F
Metal
film
470kQ
£1%
1/4W
W,T]]vR1
R12-5024-05
Trim.
pot
100kQ
(B)
R126
R92-0617-05
Metal
film
7.5kQ
21%
1/4W
W,T]]
yao
R12-0053-05
Trim.
pot
500
(B)
VR1 R12-4016-05 Trim. pot 50k (B)
VR2 R12-1020-05 Trim. pot 1kQ (B)
Rg
tata
tds
Tim
pot
1k
(B)
PLL
UNIT
(X50-1750-10)
VR4
R12-1020-05
Trim.
pot
1kQ
(B)
C3
CC4S5CH1HORSC
Cc
O.5pF
=
-
+0.
25pF
VR5~7
R12-1405-05
Trim.
pot
3kQ.
(B)
C4
CC45TH1HO80D
C
-&pF
£0.5pF
VR8
R12-4403-05
Trim.
pot
50k2
TI}
cs
CC45CH1H020¢
C
—_-2pF
+0.25pF
VRQ
R12-2409-05
Trim.
pot
5kO.
W,T]
|
ce
CC45CH1HO50C
c
5pF
+0.25pF
C7 CE04W1A220M E 22yuF 10V
R92-0150-05
Short
jumper
Cit
CC45CH1HO70D
c
7pF
+0.5pF
C12 CC45CH1HO30C c 3pF +0.25pF
C13 CC45CHiHO50C Cc 5eF +0.25pF
FINAL
UNIT
(X45-1190-10)
C14
CEO4W1A101M
E
100uF
10V
ee
—Tesoancroim
|
J
uaF
Tov
cig
[ocascuomoe|
Jc
fer
20208
C4,5
CC45SL2HO70D
Cc
7pF
+0.5pF
500V
C20
CC45CH1H2205
C
oe
5
20.208
c7,8 CC45SL2H101J5 Cc 1OOpF 500V C22 €91-0131-05 C 0 Or E
cg CC45CH1H150J C__15pF ; wie
16

PARTS LIST
TR°773t
Ref.No.| PartsNo. [Re Description Ref.No.| Parts No. mack Description
C24 CE04W1H3R3M E 3.3uF 50V x1 L77-0944-05 w | Crystal R 42.6000 MHz
C26 CC45RH1HO20C Cc 2pF +0.25pF X2 L77-0945-05 vw [Crystal T 46.1667 MHz
C27 CC45RH1HO40C Cc 4pF +0.25pF x3 L77-0720-05 Crystal 10.240 MHz
C29 CC45CH1HO20C Cc 2pF +0.25pF
C32 C91-0131-05 Cc 0.01 pF R92-0150-05 Short jumper
C34 CC45RH1HO20C c 2pF +0.25pF
C35 CC45RH1HO30C Cc 3pF £0.25pF
C36, 37 | CC45CH1HO40C Cc 4pF +0.25pF 10:K,M
c38.—
|
CC4SRH1HOSOC
C
5pF
40.25
F
CONTROL
UNIT
(X53-1230-10,
-61)
(64:
tT’
w
C40
CC45RH1HO40C
Cc
4pF
+0.25pF
on
CEO02W0J470
E
47
uF
6.3V
C41 C91-0131-05 c 0.01pnF c2 CC45SL1H470J5 Cc 47pF
C42 CC45CH1H390J Cc 39pF C3 CQ92M1H223K ML 0.022uF
C43 CC45CH1H330J Cc 33pF C4 CE04W1HO10M E 1pF 50V
C44, 46 | C91-0131-05 Cc 0.01nF c5~8 CS15E1VR22M T 0.22uF 35V
C47 CE04W1A101M E 100KF 10V co CE04W1C220M E 22uF 16V
C48
CE04W1A470M
E
47
mF
10V
C10,
11
|
CEO4w0J471M
E
A70pF
6.3
c50
CQ92M1H473K
ML
0,047puF
C12
CE04W1H2R2M
E
2.2nF
50V
C51, 52 |CS15E1C100M T 10uF 16V C13 CE04W1A470M E 47 pF 10V
C53 CS15E1VOR1M T 0.1pF 35V C14 CE04W1C470M E 47 uF 16V
C54 CE04W1A101M E 100~zF = 10V C15 C91-0131-05 Cc 0.01 nF
C55 CQ92M1H223K ML 0.022uF C17 C90-0827-05 E 330uF 16V
C57 CE04W1A101M E 100uF 10V C18 C91-0131-05 c 0.01 uF
C58 CC45CH1H220J c 22pF c19 CE04W1A101M E 100uF =. 10V
C59 CC45CH1H270J Cc 27pF C20 CC45SL1H470J c A7pF
C60 CO92M1H333K ML 0.033uF C24 CC45CH1H270J c 27pF
Cé1 CC45SL1H101J c 100pF C25~28 | CC45SL1H470J c 47pF
C62 CQ92M1H153K ML 0.015uF ;
C63
CC45SL1H101J
Cc
100pF
E31-2098-05
x
|
Connector
with
lead
w,
T
C64, 65 | CC45CH1H100D Cc 10pF +0.5pF J1 E40-1173-05 Mini connect wafer 114P
C69 CS15E1VR22M T 0.22uF 35V J2 E40-0473-05 Mini connect wafer 4P
C70 CC45CH1HO20C Cc 2pF £0.25pF J3 E40- 1073-05 Mini connect wafer 1OP
C72, 73 | CC45CH1H330J c 33pF J4 E40-1273-05 Mini connect wafer 12P
J65 E40-0373-05 Mini connect wafer 3P
TC1 C05-0062-05 Ceramic trimmer 6pF J6 E40- 1373-05 Mini connect wafer 13P
TC2 C05-0308-05 Ceramic trimmer 4pF J7 £40-0273-05 Mini connect wafer 2P W, T
TC3,4 | CO5-0309-05 Ceramic trimmer 40pF J8 E40-0573-05 Mini connect wafer 5P Ww, T
E23-0046-04 Square terminal x 4 J31-0503-05 Bead x 8
J1 E40-0273-05 Mini connect wafer 2P J32-0755-04 w Round boss x 2 W, T
J2 E40-0473-05 Mini connect wafer 4P
J3 E40-0673-05 Mini connect wafer 6P Li L30-0503-05 IFT 455kHz
J4 E40-0773-05 Mini connect wafer 7P
J5 £40-0673-05 Mini connect wafer 6P N30- 2606-46 Round screw x 4 w, T
Li L.32-0632-05 OSC coil R10 R90-0526-05 Resistor block 27k x 4
L2 L33-0637-05 Choke coil 3H R15, 49 | R90-0520-05 Resistor block 47k9 >» 5
L3 L40-6811-03 Ferri-inductor 680uH
L4 L40-3391-03 Ferri-inductor 3.3uH
L5 34-0956-05 Tuning coil
te lcao-2011-08 Ferriinductor 220uH DISPLAY UNIT (X54-1520-11)
L? L34-0956-05 Tuning coil BO7-0629-03 LED case
L8
L40-2211-03
Ferri-inductor
220KH
B08-0302-04
Back
board
LO L40-1511-03 Ferri-inductor 150uH
L10 L31-0343-05 Tuning coil C2 CE04W1C100M E 10uF 16/
L11 L40-2211-03 Ferri-inductor 220uH
L1i2 L40-1511-03 Ferri-inductor 150uH E23-0426-05 Earth lug o2
L13, 14 | L32-0637-05 OSC coil
Li5 L40-2211-03 Ferri-inductor 220yH J31-0515-14 Collar
Li6 L40-4711-03 Ferri-inductor 470ynH
Li7
L40-1021-03
Ferri-inductor
mH
N10-2020-46
Nut
L1i8
L40-4711-03
Ferri-inductor
470uH
N15-1020-46
Flat
washer
L19
L40-2201-03
Ferri-inductor
22H
N30-2020-46
Round
screw
L20, 21 | L40-1001-03 Ferri-inductor 1OwH
R92-0150-05 Short jumper
17

TR°7730
DISASSEMBLY
Flat screw
Ornamental nut (N32-2604-46)
(N13-0302-04)
Sub panel
PC board (A) Schmitt
Rot i .
(J25-2755-14) otary switch M.CH
(SO1-1422-05)
Key board switch x 2
SCAN, HOLD
($59- 1405-05)
Pot. with SW. VOL__ Display unit
Round
screw
(RO5-3410-15)
(X54-
1520-11)
(N30-2604-46)
Rotary encoder
(W02-0316-05)
Push switch M
(S40-1 402-05)
Push switch MR
(S40-241 7-05)
Fiat washer x 2
(N15-1020-46)
Round screw x 11
(N30-2004-46)
6P male socket MIC
(E06-0651-05)
*(E07-0651-05)
Rotary switch RPT
(SO1-1421-05)
Push switch MS
Push switch H/L (S40-1401-05) sa
($40-1401-05) Push switch TONE Round screw
Push switch 10K/5K (S40-2417-05) K, M, T (N30-2020-46)
(S40-2417-05) (S$40-2421-05) W
# : Mating connector
2 Heat sink
.
(FO1-0760-05)
Cordbbushing
ZA
;
(J41.0006-05)
x) DC cord (D) with 6A Fuse
CB
{E30- 1688-05)
Final unit
(X45-1190-10)
Power module : VP-15&1305
(V30-1240-26) \4
Apply with > SN ACS
heat
sinker.
Ko
~
D
= oS
DQ a
“SI
a oN I> 4
.
Se
SxiC
ig
S 34
S
oO
“
SS
. >
f u Ww
Bind screw x 2 | aU
(N35- 3006-46) Round screw x 7
(N30-2604-46)
Power
jack
(E08-0304-05)
y Phone jack Round screw x 2
(&11-0403-05) _ N90-2606-46)
UHF type receptacle # (E12-0001-05)
(E04-0152-05)
.
# (E05-0251-05) # : Mating connector
18

TR773l
DISASSEMBLY
Case {upper) =f Model name plate
{A01-0905-03)
Round flat screw x 6
(N33-2605-45)
Cushion cloth (E)
(G10-0615-04)
Cushion cloth (C)
(G10-0612-04)
Conductive rubber sheet
%*
Panel
escutcheon
(G16-0503-03)
(BO1-0639-03) K,M
(BO1-0640-03) T
(BO1-0641-03) W Round flat screw x 6
(N33-2606-45)
Round screw x 9
(N30-2004-46)
Side
escutcheon
x
2
PLL
shield
cover
(BO7-0636-04)
Switch mask x 2
(BO3-0517-04)
17
<<
Speed nut x 3
(N14-0512-05)
Panel
(A20-2433-04) Qa
Flat screw x 4
(N32-2604-46) Sp
Knob (B) M.CH Front glass
(K23-0737-04) (B10-0629-04) | be: | '
Push knob (A) M a < re
(K27-0416-05) BSS
Push knob (B) MR a eSN
(K27-0417-05) EI P&S
Knob (A) x 2 VOL, SQU
(K23-0736-04)
Cushion cloth (E)
(G10-0$1 5-04)
Case (lower)
(A\01-0906-03)
Main knob
(K21-0752-03)
Rourd flat screw x 13
(N33-2605- 45)
Knob (C) RPT
Push knob (E) x 2 SCAN, HOLD (K23-0743-04)
Cushion cloth (D)
(K27-0420-04)
Push knob (D) MS (G10-0673-14)
Push knob (C) x 3 10K/5K, H/L, TONE = (K27-0419-05) Cushion (A) x 2
(K27-0418-05) (G13-0638-04)
Cushion cloth (B) x 2
(G10-0611-04) SP grill cloth
(B50-07 14-04)
Round flat screw x 4
(N33-2606-45)
Gnd spring (C)
(G02-0518-04)
Gnd spring (C)
(G02-0518-04)
19

nN
{e)
RECEIVER SECTION
15dBy (10.7 MHz) AV(10.245MHz] 30mvV 400mvV 380mV 9mv 63V
-
7dBy
22dBy
18dBy
(145
MHz)44dBy
(10.7
MHz}
30dBu
18dBy
55dBy
80dBy
110dBy
§=—118dBy
/.63V
/63V
/.63V /.63V
/80.
aA LI7—MCF bres Q Q Q IC3 SP
~ 11 i2
ANT
L5
Q3
L6
Q4
A
B
Q6
Li8
1c
1
Q7
Qs
Qs
10
Lig
1
1
4 l !
4 6 4 10
{RF
AR
HLF
-
-{}
of
Ha
2
CFW455F HVRIOT !
LR RF AMP Q5
[e+ W
6V——*OTP2
! ! !
RF 144MHz '10.7MHz ' 455KHz 455KHz ! AE
t
t 1 1
Notes: 1. To inject signal generator output connect a 0.01uF capacitor 3. In measuring the circuit from the base of O11 to the SP ter-
between the signal genetator and the check point. minal, an SSG signal of 144MHz, OdBy, 1 kHz MOD, 5kHz
2. In measuring the circuit from the ANT terminal to the base of DEV is applied to the ANT terminal, and the AF control is
Q10, unmodulated 144 MHz, 10.7MHz, and 455 kHz signals adjusted to obtain an AF output of 0.63V/82. The signal
from an SSG are applied to the check point to obtain a 20dB voltage at each point is measured with an AF VTVM.
NQ sensitivity.
TRANSMITTER SECTION < REFERENCE >
50mvV “AV Vv SV Vv 6.5V
Japanese “SG” American “SG”’
Tp TP Tp4 —6dB 0.25 nV
MIC, ic2 , D1 Qi Q2, |Q3 , {@4 Q2, F0OmWrT Cc 4 OdB 0.5 nV
t 6 3 ' i 1 1 4 25w 6dB TuV
[.>- IMC > j ™MOD VT ouTTIN ©) 12dB 2uV
tHe ! ' : ° 1 AMP AMP ’ 24 dB Buv
m VR3 vco BUFF AM
\ ; ; ; 30 dB 15.8 uV
H RX.TX UNIT ; PLL UNIT ' RX.TX UNIT ' FINAL UNIT 40dB 50 nV
1 (X44-1450-10) | (X50-1750-10) t (X44-1450-10) | (X45-1190- 10)
H ' H ~ 50 dB 158 uv
I H 60 dB 500 nV
70 dB 1.58 mV
80dB 5mV
Notes:
1.
Voltages
in
MIC
AMP
are
measured
by
an
AF
VTVM
with
an
input
of
1
kHz,
2mV.
90
dB
15.8mV
2. Voltage measurements before OUT terminal are read from an RF VTVM with OUT 100 dB 50 mV
CARIES
GRSUTITIONIGY
GT
CL
POWST
DOSITION,
120
dB
0.5V
OFZZuL
WVY9VId 19A31