Alinco DJ-F1T Building instructions

VHF FM HANDHELD TRANSCEIVER
UHF FM HANDHELD TRANSCEIVER
Service M anual
-----------------------------------CONTENTS -----------------------------------
• SPECIFICATIONS........................................................ 1
• DJ-F1T/E CABINET PARTS LOCATION ................................. 2
• M67748L1 (MAIN UNIT IC-2 1) ........................................ 3
• MB15 4L (MAIN UNIT IC-2 2) ......................................... 4
• TK1 487MT (MAIN UNIT IC-2 3)....................................... 5
• ¡I PD4 94BG (MAIN UNIT IC-2 4)...................................... 6
• NJM386M (MAIN UNIT IC-2 5) ......... ............................... 7
• M5236ML (MAIN UNIT IC-2 6) ......................................... 8
• M5218 (MAIN UNIT IC-2 7)............................................. 9
• CM888 (DTMF UNIT IC-6 1)........................................... 1
• TM888 (DTMF UNIT IC-6 2)........................................... 1
• MPD78214GC582-AB8 (CPU UNIT IC- 2)..............................11
• S-8125 HG (CPU UNIT IC- 3) .......................................... 12
• S-8 54HN (CPU UNIT IC- 4)............................................13
• DJ-F1T/E DJ-S1T/E PARTS LIST ....................................... 15
• ADJUSTMENT F1-T/S1-T ............................................... 18
• ADJUSTMENT F1-E/S1-E ............................................... 19
• SCHEMATIC DIAGRAM..................................................2
• VR.RE.SW.PC BOARD...................................................22
• CPU PC BOARD..........................................................23
• VCO PC BOARD..........................................................27
• MAIN PC BOARD........................................................28
• KEYBOARD.............................................................. 32
• EMS-8 (Remote control Speaker/Microphone)........................33
• EME-1 K (Headset W/PTT VOX)
....................................... 34
SCHEMATIC DIAGRAM OF EME-1 K ................................... 35
EME-1 K PC BOARD.....................................................36
• EJ-1 U (DTMF ENC/DEC UNIT)......................................... 37
EJ-1 U (DTMF PC BOARD)..............................................38
• EJ-12U (TONE SQUELCH UNIT)........................................ 39
PC BOARD OF TONE SQUELCH UNIT .................................. 4
• EDC-34 (QUICK CHARGER 12 V) ...................................... 41
• EDC-35 (QUICK CHARGER 22 V) ...................................... 42
ALINCO ELECTRONICS INC.

■ SPECIFICATIONS
■ GENERAL
Frequency Coverage
Me ory Channel
Channel Steps
Standard Shift Frequency
E ission Type
Antenna I pedance
Operating Voltage
Microphone I pedance
Speaker I pedance
Di ensions
Weight
Ground
■ TRANSMITTER
Output Power
Modulation Syste
Max. Freq. Deviation
Spurious E ission
Microphone
■ RECEIVER
Receiving Syste
Sensitivity
Inter ediate Frequencies
F1T&S1T TX: 144.000-147.995 MHz
RX: 138.000-173.995 MHz
(AM Mode 118 — 136 MHz ater Modi ication)
F1E&S1E: TX: 144.000-145.995 MHz
RX: 144.000-145.995 MHz
F4T&S4T TX: 440.000-449.995 MHz
RX: 410.000-470.000 MHz
F4E&S4E: TX: 430.000-440.000 MHz
RX: 430.000-440.000 MHz
40 Channels +1 Call Channel
5 10, 12.5, 15, 20, and 25 kHz
F1T/E & S1T/E: 600 kHz
F4T&S4T: 5 MHz
F4E&S4E: 7.6 MHz
(Resettable by 5 kHz [Minimum] between 0 and 15.995 MHz)
F3
50 U
rated 9V
2 k i
8 l
110 (H) x 53 (W) x 37 (D) mm (4.3 x 2.1 x 1.5 inch) ,
/with Standard Battery Pack or Standard Dry Cell Battery Case
\ without Projections ,
F1T/E & F4T/E Approx. 375 g (13.2 oz)
with Standard Battery Pack
S1T/E & S4T/E Approx. 370 g (13 oz)
with Standard Dry Ceil Battery Case
Negative
with Battery Pack EBP-16N (Standard or F1T/E & F4T/E)
Hi Mid Low
2 W (F1T/E & S1T/E)
1.5 W (F4T/E & S4T/E) 1 W 0.1 W
with Optional Battery Pack EBP-18N or at 13V
Hi Mid Low
5 W 1
W 0.1 w
with Dry Cell Battery Pack at 9V
Hi Mid Low
2.5 W (F1T/E & S1T/E)
2 W (F4T/E & S4T/E) 1 W 0.1 W
Variable Reactance Frequency Modulation
± 5 kHz
Less than 60 dB below earner
Built-in Electret Condenser
Double-conversion superheterodyne
12 dB SINAD less than -15 dB/i
1st 23.05 MHz
2nd 455 kHz 1

■ DJ-F1T/E CABINET PARTS LOCATION
Mechanical Parts
1KM0121 Front Panel,F1T
KM0081 Front panel DJ-S1
KM0078 Front panel DJ-S1T
2KM0114 Key Pad Panel
3 FG0069 Rubber Contact
4P0210 DJP3 key Board
5 FG0088 Anti-Water Drop Mat C
6NB0041 Lock Knob
7NB0040 Release Knob
8FG0061A Silicon Rubber Switch A
9 P0198 SW P. 0. Board
10 FG0058 PTT Rubber
11 FM0047 Release Plate
12 SCO005 Spring Coil
13 FG0066 DC Rubber
14 FG0065 MIC Rubber
15 FG0063A Silicon Rubber Switch B
16 KM0084 Front Case
17 ES0005 Speaker
18 ST0028 SP Stopper
19 FG0064 MIC. Holder
20 T0024 Terminal
21 FP0046 Terminal Frame
22 NK0020 VOL. Knob
23 NW0005 SQL. Knob
24 NK0021 Dial Knob
25 EA0017 Antenna DJF1
Screw
1AF0015 0# Screw 2+3 BC
2AF0005 0# Screw 2+3. 5 N
3SA0009 Supporter For Release Switch
4AA0039 Screw 2+6 BC
5AA0037 Screw 2+4
6AF0017 0# Screw 2+8 N
7 SA0008 Supporter For Lock
8AA0036 Screw 2+5 N
9 AA0038 Screw(flat) 2+16N
10 AF0016 0# Screw 2+2 BC

■ M67748L1 (MAIN UNIT IC-201)
1: INPUT
2: PREDRIVE + B
3: BIAS + B
4: FINAL + B
5 : OUTPUT
6: GAD (FIN) Zg = 50 Q Zl = 50Q
Electrical Characteristics
ITEM SYMBOL TC
(°C) CONDITION RATING UNIT
MIN. TYPE MAX.
Output power Po 25 f =135-150MHz, Pin =20 W,
Vcc =125V, Vbb =5V,
Zg=Zi=50fi 7W
Total efficiency »T 25 (ditto) 45 %
2nd spurious 2fo 25 (ditto) -2 0 dB
3rd spurious 3fo 25 (ditto) -25 dB
Input SWR pin 25 (ditto) 2.5 —
Output SWR pout 25 (ditto) 1.5 —
- 3 —

■ MB1504L (MAIN UNIT IC-202)
(TOP VIEW)
OSCin 116 4>R
OSCout 215 <t> P
vp 314 fp
Vcc 413 fr
Do 512 FC
ND 611 LE
LD 710 Data
fin 89Clock
Pin Function Table
NO. SYMBOL I/O RATING
1OSCin ICristal oscillator input
2OSCout 0
3Vp—Voltage for charge-pu p
4Vcc —Voltage for IC
5 Do 0Charge-pu p output
6 GND —Ground
7LD 0 Lock detector output
8fin IFrequency input
9 Clock I Serial interface (clock input)
10 Data I Serial interface data input
11 LE I Serial interface load enable input
12 FC 0 Do changer output
13 fr O Reference Frequency output
14 fp oProgra able counter output
15 <t>P 0Charge-pu p output
16 </>R 0
4

■ TK10487MT (MAIN UNIT IC-203)
OSC (B)
OSC (E)
NC
MIX OUT
Vcc
IF INPUT
DECOUPLIN
DECOUPLIN
PHASE SHIFT
QUAD COIL
5
<20) RE INPUT
ND
(¡8) HySTERESIS CONTROL
SCAN CONTROL
(j5) SQUELCH INPUT
FILTER AMP OUTPUT
(Î3) FILTER AMP INPUT
(12) S METER OUTPUT
(ij) AF OUTPUT

■pPD4094BG (MAIN UNIT IC-204)
STROBE 1 16 Vdd
DATA 215 OUTPUT
ENABLE
CLOCK 314 Û5
Qi 4 13 Qe
Û2 512 Û7
Û3 6 11 08
Q4 710 Qs
Vss 8 9Qs
CLOCK OUTPUT
ENABLE DATA PARALLEL OUTPUT SERIES OUTPUT
oTnUbc Qi Qn Qs* Q's
LX X High
I pedance High I pedance D7 NO
CHANGE
LX X High
I pedance High I pedance NO CHANGE Da
HXNO
CHANGE NO CHANGE D? NO CHANGE
H H L L Qn-1 D? NO
CHANGE
HH H H Qn-1 D7 NO
CHANGE
H H H NO
CHANGE NO CHANGE NO CHANGE Ds
6

■ NJM386M (MAIN UNIT IC-205)
AIN
7 BYPASS
VOUT
(TOP VIEW)
Electrical Characteristics
ITEM CONDITION SYMBOL MIN. TYP. MAX. UNIT
Supply voltage Vs 4 — 12 V
Reactive current Vin =0V lo —4 8 A
Output voltage Rl=8Q, THD=10% Pout 250 325 -W
Output voltage Vs=9V, Rl=16Q, THD=10% Pout —500 —W
Voltage gain f =1kHz Av — 26 — dB
Voltage gain f=1kHz, Av —46 — dB
Band width BW — 300 — kHz
Total high distorsion Rl=8U PouT=125 W
f=1kHz, THD —0.2 —%
Power supply rejection f =1kHz, PSRR —50 —dB
Input register Rin —50 — Kii
Input bias supply Ibias —250 —nA 7

■ M5236ML (MAIN UNIT IC-206)
3d
S
2 c r"""i r - -
1 c=lit 1
1 1 < •
III 1
I
_ I 1 _ 1
Electrical Characteristics
ITEM SYMBOL CONDITION RATING UNIT
MIN. TYP. MAX.
Input voltage VlN 3.5 —36 V
Output voltage Vo 1.5 —33 V
Voltage difference Vi-o —0.2 0.5 V
Standard voltage Vre 1.20 1.26 1.32 V
Input regulation Reg-in Vi =15-20V —0.02 0.1 °/o/V
Loaded regulation Reg-L li_=10~200 A —0.02 0.1 %
Bias current Ib—1.3 2.3 A
Output voltage te p, coefficient TCVoTa=0~ +75°C —0.01 —°/o/°C
Ripple rejection ratio RR f =120Hz, VT=300 Vr s
Vi-o=3V —68 —dB
Output noise voltage VNo Af=20Hz~ 100kHz —33 —/iVr s
Vref
-8 -

■ M5218 (MAIN UNIT IC-207)
Electrical Characteristics
ITEM SYMBOL CONDITION RATING UNIT
MIN. TYP MAX.
I. current circuit Icc
< 5
II
O
—3.0 6.0 A
V. input offset Vio RsslOKO —0.5 6.0 V
I. input offset ho —5200 nA
I. input bias le — — 500 nA
R. input Rin 0.3 5 —Mtt
G. open voltage Gvo Ri_^2Kft, Vo = ±10V 66 110 —dB
V. ax. output VOM Rl^IOKO ±12 ±14 —V
Rl^2K0 ±10 ±13 —V
Co on ode range VCM ±12 ±14 —V
Co on ode rejection CMRR Rs^IOKO 70 90 —dB
C. voltage rejection ratio SVRR Rs^lOKO —30 150 /iV/V
Power consu ption Pd —90 180 W
Bandwidth fT —7—MHz
Through rate SR Gv =0dB, Rl =2K0 —2.2 —V/^s
Input scale noise voltage Vni Rs=1KQ, BW: 10Hz~30kHz —2.0 — /iVr s
— 9 -