Alinco DJ-X30K, DJ-X30E, DJ-X30T Service Manual
D J - X 3 0 T / E / K
Service Manual
C O N T E N T S
SPECIFICATIONS
General..................................
Receiver........................................................2
CIRCUIT DESCRIPTION
1) Receiver System......................................3-5
2) M30620 (E&K:XA1224B ,T:XA1232B)
SEMICONDUCTOR DATA
1) NJM2070M (XA0210)
2) TC4W53FU (XA0348)
3) TK10931V (XA0666)...................................9
4) TK11850L (XA0950)..................................10
5) uPC2757TB(XA0976)
6) NJM2594V (XA0995)
7) MB15F07SLPFV1 (XA1033)
8) TC7SZ04AFE (XA1035).............................11
9) XC62H R3002MR (XA1054)
10) BU4818FVE (XA1095).............................11
11) LM2904PWR (XA1103)............................11
12) XC6209F332MR (XA1182)
13) LC75827W (XA1183)
14) AT24C512-1.8 (XA1184)
15) BU4846FVE {XA1185).............................13
16) SM6451B (XA1186)
17) XC6371C330PR (XA1239)
18) Transistor, Diode and LED Outline Drawing
19) LCD Connection (EL0061)
.......................
.......
6-8
.................................
.................................9
...............................
................................
......................
.......................
......................
..............................
..........................13
................................
.......................
.....
.......................
10
10
10
11
12
12
13
13
14
15
EXPLODED VIEW
1) Front View................................................16
2
2) RearView
PARTS LIST
CPU Unit................................................18-19
MAIN Unit...............................................20-23
Mechanical Unit............................................23
Packing Unit.................................................23
9
ADJUSTMENT
1) Required Test Equipment..........................24
2) Entering and Releasing the Adjustment Mode
PC BOARD VIEW
SCHEMATIC DIAGRAM
BLOCK DIAGRAM...................................33
................................................
............................. 29-30
....................
.....
17
25-28
31-32
A LI N CO , Inc
S P E C IF IC A T IO N S
General
Receiving range (Default frequency Range)
E&K: 0.1 -1299.9975 MHz
T: 0.1 -823.9975 MHz
850.000-868.9975 MHz
895.000-1299.9975 MHz
Modulation mode:
Ant.impedance:
Supply voltage:
Ground:
Current consumption:
Temperature range:
Frequency stability:
Dimensions:
Weight:
FM,WFM,AM
50 ohm (SMA)
DC 2.4V - 3.0V (Internal battery)
DC 5.4V - 6.0V (external regulated source)
Negative ground
reception :approx. 140mA
Battery save (1:4) approx.26mA
-10 - +60°C {+14 - +140 F°)
+3~-7ppm (-10 - +60°C) (+14 - +140 F°)
58(W) x99 (H) x32 (D) mm (Projections exclusive)
Approx. 165g (SMA ANTENNA inclusive)
Receiver
System:
First IF:
Second IF:
Third IF:
Selectivity:
Sensitivity: FM :
Triple-conversion super heterodyne (NFM.AM)
Double-conversion super heterodyne (WFM)
243.95 MHz (NFM,AM,WFM)
39.15 MHz (NFM.AM) ,10.7MHz (WFM)
450 kHz (NFM.AM)
AM/FM -6dB/12 kHz or more , -60dB/35kHz or less
WFM -6dB/130kHz or more, -60dB/300kHz or more
WFM : 76~470MHz
AM: 0.1~50MHz
30~470MHz
470MHz or higher
470MHz or higher
50MHz or higher
-15dBu 12dB SINAD
-7dBu 12dB SINAD
-6dBu 12dB SiNAD
-3dBu 12dB SINAD
-1dBu 10dB S/N
-6dBu 10dB S/N
Audio output power:
Spurious response:
I NOTE: All specifications are subject to change without notice or obligation.
more than 10OmW (8£2)
60dB or over
C IR C U IT D E S C R IP T IO N
1) Receiver System
Triple Super heterodyne Conversion (NFM.AM)
Double Super heterodyne Conversion (WFM)
1st IF: 243.95MHz
2nd IF: 39.15MHz (NFM.AM)
2nd IF : 10.7MHz (WFM)
3rd IF : 450kHz (NFM.AM)
1. Front End
[0.100-29.995MHz]
The incoming signal from the bar antenna goes to band switch
circuitry (D402). The signal goes to the first RF amplifier (Q401), then
the signal goes to the common mixer (IC403).
The incoming signal from the SMA antenna goes to band switch
circuitry (D419, D425, D437). The signal passes through the low-
pass filter, then it is amplified at RF amplifier (Q422). The amplified
signal goes to the common mixer (IC403).
[30-117.995MHz, 170-334.995MHz]
The incoming signal from the antenna passes through a band-pass
filter and goes to the first amplifier (Q412).
Then the signal goes to the common mixer (IC403).
[118-169.995MHz]
The incoming signal from the antenna passes through a band-pass
filter and goes to the first amplifier Q414.
Then the signal goes to the common mixer (IC403).
[335-469.995MHz]
The incoming signal from the antenna passes through a band-pass
filter and goes to the first amplifier (Q419).
Then the signal goes to the common mixer (IC403).
[470-849.995M Hz]
The incoming signal from the antenna passes through a band-pass
filter and goes to the first amplifier (Q423).
Then the signal goes to the common mixer (IC403).
[850-1299.995MHz]
The incoming signal from the antenna passes through a band-pass
filter and goes to the first amplifier (Q425). Then the signal goes to
the common mixer (IC403).
Note that the cellular-phone band block system is mentioned on the
separated sheet for the T-version.
3
2. Mixer
3. IF
[The 1st Mixer]
The 1st local oscillator signal for the 1st mixer is supplied from the
VCO.
The incoming signal to the 1st mixer (IC403) and the 1st local signal
are added or subtracted at mixer (IC403), and the SAW filter (FL402)
selects the signal of 243.95MHz, then it goes to the 2nd mixer
(IC404) after the adjacent signal is eliminated.
[The 2nd Mixer]
The 2nd local oscillator signal for the 2nd mixer is supplied from the
VCO.
{FM/AM}
In FM/AM mode, the signal heterodowned to the 2nd IF of 39.15MHz
by the mixer passes through a crystal filter (FL401) and unwanted
signal components are eliminated.
The resulting signal is amplified by the 2nd IF amplifier Q413 and
goes to the IF ]C (IC406).
{WFM}
In WFM mode, the signal heterodowned to the 2nd IF of 10.7MHz by
the mixer passes through a ceramic filter (FL403) and unwanted
signal components are eliminated.
The resulting signal is amplified by the IF amplifier Q416 and goes to
the IF IC (IC406).
[The 3rd Mixer]
The 3rd local oscillator signal for the 3rd mixer is 38.7MHz signal that
is produced by multiplying the 12.9MHz (X401) oscillator output with
a multiplier (Q411).
[FM]
In FM mode, the signal passes through an external ceramic filter
(FL404) and FM/AM switch D440, and goes back to the IF IC
(IC406).
The signal is amplified by the internal IF amplifier is demodulated by
the quadrature FM demodulation circuit using a coil (L445) and
output as an AF signal.
[AM]
In AM mode, the signal passes through an external ceramic filter
(FL404) and goes back to the IF IC (IC406).
The 2nd IF amplifier (Q413) and RF amplifier (Q414) is controlled by
reverse AGC at AGC amplifier Q420 to get better audio output even
though the input is changed, and the gain is controlled.
[WFM]
In WFM mode, the signal of 10.7MHz passes through FM/AM switch
(D440) and goes to the IF IC (IC406).
The signal is amplified by the internal IF amplifier is demodulated by
the quadrature FM demodulation circuit using a coil (L442) and
output as an AF signal.
4
4. Squelch The AF signal got from pin 12 of IF IC (IC406) is fed to pin 19 of IF IC
(IC406). The input signal is output from pin 21 of IF IC (IC406)
passing through the noise filter amplifier and rectifier circuits inside of
IF IC (IC406). The rectified signal is added to the A/D port of the
microcomputer (IC203). Judging the signal, the microcomputer
controls ON/OFF of the audio output.
5. Audio
[FM/AM/WFM]
The AF signal goes to the switching IC (IC407). The switched signal
passes through active filter (Q213) and goes to the electronic volume
(1C216).
The adjusted signal goes to the AUDIO IC (IC215) and drives a
speaker, etc.
6.VCO
[The 1st Local]
The VCO for the 1st local consists of the Colpitts oscillator. D406,
D409 and L403 determine the frequency, and they are oscillated at
the transistor Q402. The oscillated signal passes through the buffer
amplifiers (Q403, Q404) and goes to the PLL-IC (IC401).
[The 2nd Local]
The VCO for the 1st local consists of the Colpitts oscillator. D424,
D426 and L410 determine the frequency, and they are oscillated at
the transistor Q409. The oscillated signal passes through the butter
amplifier (Q410) and goes to the PLL-IC (IC401).
7. PLL
PLL-IC (IC401) is used to control the oscillation frequency of VCO.
The microcomputer (1C203) sends the signal with serial data to PLL-
IC (1C401). The 12.9MHz reference frequency of PLL-IC (IC401)
oscillates the crystal oscillator (X401) at the external circuit (IC402).
5
2) M30620 ( E&K : XA1224B ,T : XA1232B )
CPU
Terminal Connection
(TOP VIEW)
Z E E e'eV s W s'siV s > £ S 2 £ £ £ £ £ £ Sf2
ttttttttttHtttlttttttttt
L
P1 2Æ310
P1J/D9
P1_0/DS
PD_7/AN0_7/D7
PO_6/ANO_6/D6
PO_5/ANO_5/D5
PO_4/ANO_4iD4
P0_3/AN0_3©3
PO_2/ANO_2/D2
PO_1/ANO_1/D1
P0_0/ANO_0/D0
P10_7/AN7/KI3
P10_6/AN6/KI2
P10_5/AN5/KI1
P10_4/AN4/KI0
P10_iiAN3
P10_1/AN2
P10_1/AN1
AVSS
P10JVAN0
VREF
P9.7/ADTRG/SIN4
P9 6/ANEX1/SOUT4
P9 5/ANEX0/CLK4
AVCC
P4_2/A18
P4_3/A19
P4_4/CS0
P4_5/55t
P4_6/CS2
P4_7/CS3
P5_0/WRL/WR
P5_1/WRH/BHg
P5_2/RD
P5_3/BCLK
P5_4/HLDA
PS 5/fiÜEÖ
PS_6/ALH
P5JVRDY/CLKOUT
P6„0/CTSÜ/rTSÖ
P6.1/CLK0
P6_2/RXD0/SCL0
PB J3/TXD0/SDA0
Pfl_4/CTS1/RTS1/CTS0/CLKS1
P6_5/CLK1
P6_6/RXOt/SCL1
P6_7fTXD1/SDA1
P6„7n'XD1/SDA2/TAOOUT
P7_1 /RXD2/SCL2/TA01N/T0S IN
P7_2/CLK2/TA10UT/V
6
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 P8 1
20
21
22
23 P7 5
24
25
26
27
28 P7 0
29
30 RXD1
31 P6_5
32
33
34
35 P6 1
Terminal Signal | I/O
P9 3
DAO
P9 2
NC -
TRC 1 0
BUGC O
P9_l WFC
P9„0
BYTE
CNVSS
XCIN
XCOUT
RESET
XOUT
v ss
XIN
VCC1
NMI
INT2
SCO
VSS
v ss
NC
NC
RESET
XOUT
VSS
XIN I
VDD
VDD
BU I
INTI PWR
INTO
RE1
RE2
P8_0
P7_7
TA30UT
SCT
RESW I
BEEP
MONI
P7 4
P7 3
P7 2
P7_l
FNC I
RCSW I
AFS 0
CLNC 0
NC
TXD1 TXD
RXD I
NC
P6_4
TXDO
RXDO
RECSW
SDA
SCL
BLLMP
36 P6 0 INT
37
38
39 P5 5
40
41
42
43
44
45
46
47 P4 5
48 P4 4
P5 7
P5_6
P5 4
P5_3
P5 2
P5_l
P5 0
P4_7
P4_6
CLK I/O
DATA
R3C
NFC 0
BF6C
DB2C
BF5C 0
LCONT 0
DB3C
STB2
AFPC
TONE 0
49 P4 3 MIDO
50 P4 2
AKA
Description
—
Tracking control
Bugging SW output
0 WFM SW
0 Secret function SW
—
-
CPU GND
CPUGND
— —
—
I
—
Reset input
0 Clock output
—
CPUGND
Clock input
—
—
Power supply
Power supply
Back up signal detection input
I
I
POWER key input
Rotary encoder input 1
I Rotary encoder input 2
0 Secret signal output
Rotaiy encoder push SW input
0
Beep tone output
I MONI key input
FUNC key input
Remote controller AF SW
AF SW
Clone SW
—
0
Clone data transmission output
—
Clone data reception input
—
—
—
—
—
—
—
—
0 Backlight SW
-
—
Serial clock I/O for EEPROM
I/O
Serial data I/O for EEPROM
0 RX common power SW
NFMSW
0
BND6 power SW output
0 Doubler2 SW
BND5 power SW output
LCD driver control
0 Doubler3 SW
0 Strobe for LCD driver
0 AF power control
AF tone control
0 Green LED SW
0 Red LED SW
7
No.
51
52
53 P3 7
54
55 P3 5
56 P3 4
57
58 P3_2
59
60 VCC2
61
62
63
64
65
66
67 AN2 3
68
69 AN2„1
70
71
72
73 PI 5
74
75 PI 3
76 PI 2
77
78
79 P0 7
80
81 P0 5
82 P0_4
83 PO_3
84 P0 2
85 P0_1
86 PO 0
87 P10_7
88 P10 6 KI1
89 P10 5
90 P10 4
91
92 AN2
93 AN1
94
95 ANO
96
97 AVCC
98 P9 7
99 P9_6 CHG o
100
Terminal
P4_l
P4 0
P3 6
P3„3
P3_l
P3 0
v s s
P2_7
P2_6 ABRC
P2_5 .
AN2„4
AN2 2
AN2 0
Pl_7
PI 6
Pl_4
Pl-1
P1_0
P0_6 PLC
AN3 CDET
AVSS
VREF
P9_5 AMC 0
Signal
DB1C 0
AT2C
EARC
TNC 0
STB1
DATA
CLK 0
PS
STB3 0
VDD
NC
VSS
SBRC 0
ATONC 0
TIN I
ADIN
SOL I
SMT
BCHK I
DCDET I
RAC
BF4C
ATOFC 0
CNT 0
BF3C 0
BF2C 0
BF1C 0
AT1C 0
RECC
KSC
K03
K02
KOI
KOO
KI2
KI0 I
KI3 I
BP1
BP2 I
VSS
NC
VDD
VDD
EVC o
I/O
—
0
0
I/O
0
—
—
—
0
—
0
0
—
—
0
0
0
0
I
I
I
—
—
—
—
Description
Doublerl SW
—
Earphone antenna SW
Tone SQL function SW
Strobe for PLL
Serial data output/Unlock input
Serial clock output
PLL IC power save control
Strobe for Evol
Power supply
—
CPU GND
SW BAR antenna control
AM BAR antenna control
ATT ON control
Tone input
I
I
Remote controller SW level input
Noise level input for squelch
S-meter input
Power supply level input
External supply level input
—
BND4 power SW output
ATT OFF control
Battery detection SW output
BND3 power SW output
BND2 power SW output
BND1 power SW output
ATT SW
PLL IC power SW
—
—
Key matrix output
Key matrix output
Key matrix output
Key matrix output
Key matrix input
Key matrix input
Key matrix input
Key matrix input
Battery Voltage input
BAND PLAN 1 input
BAND PLAN 2 input
CPU GND
—
Power supply
Power supply
Evol power control
Charge function SW
AM SW
8
SEMICONDUCTOR DATA
1) NJM2070M ( XA0210 ) Audio Power Amplifier
8 7 6 5
R R R R
1 2 3 4
2)TC4W53FU ( XA0348 ) Analog Multiplexer / De-multiplexer
1.NC
2. + INPUT
3.-INPUT
4. GND
5.GND
6. OUTPUT
7.V+
8.NC
1 2 3 4
1. COMMON
2. INH
3.VEE
4.VSS
5. A
6. ch1
7. chO
8.VDD
Control input
INH A
L
L H ch1
H
‘Don't care
3) TK10931V ( XA0666 ) Narrow Band AM / FM IF IC
24 23 22 21 201918 171615 14 13
HRRHRHHHHRHH
10931
***
M M Ï Ï Ï Ï Ï Ï ÏÏ Ï Ï Ï Ï
1 2 3 4 5 6 7 8 9 10 11 12
On channel
L
★
chO
NONE
9
4)TK11850L ( XA0950 ) Step-up Dc-dc Converter
1 E
□ 8
1. Power Supply Voltage Input
2. Inductor Current Limit
2 C
□ 7
3. External Inductor
4. Cathode Terminal of am Built-in Schottky Diode
5. Feedback Voltage
3 C
□ 6
6. Ground
7. Timing Capacitor
4 C
□ 5
8. Enable (ON/OFF) Input
5) UPC2757TB (XA0976 ) MMIC Down-converter
1 2 3
a n n
1.RF INPUT
2.GND
3. LO INPUT
4. PS
5. Vcc
6. IF OUTPUT
6) NJM2594V (XA0995) Double Balanced Modulation / Demodulation
8 7 6 5
n n n n
T J U L T L J
1 2 3 4
1.V+
2. Output 1
3. Output 2
4.GND
5. Signal Input
6. Bypass
7. Carrier Input
8.NC
7) MB15F07SL ( XA1033 ) Pull Frequency Synthezir
1.GND2
2. OSC IN
3. GND 1
4. fin 1
5. VCC
6. LD/fbut
7. PS 1
8. DO 1
9. DO 2
10. PS 2
11. Xfin 2
12. VCC 2
13. fin 2
14. LE
15. Data
16. Clock
10
1 □
2 C
3 C
4 □
5 □
6 C
7(1
8 □
□ 16
□ 15
□ 14
□ 13
□ 12
□ 11
□ 10
□ 9
8) TC7SZ04AFE ( XA1035 ) Inverter
n n
NC 1
5
Vcc
R5
2
u u u
IN A
GND 3
I— 4
4 OUTY
TOP VIEW
9) XC62HR3002MR ( XA1054) 3.0V Voltage Regulator
PIN No.
TOP VIEW
PIN NAME FUNCTION
1
2
3
4
5
(NC) No connection
VIN ■ Supply Voltage Input
CE Chip Enable
VSS
VOUT Regulated Output Voltage
Ground
10) BU4818FVE (XA1095 ) RESET IC
1. VOUT
2. SUB
3. N.C.
dd
4. V
5.GND
11) LM2904 ( XA1103) Dual Operational Amplifires
8 7 6 5 1.10UT
2.11N-
3.1 IN+
4. GND
5.21N+
6.21N-
7.20UT
8. Vcc
1 2 3 4
11
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