DJ-G5
Service Manual
CONTENTS |
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+ PARTS LIST |
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+ SPECIFICATIONS |
2 |
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RF Unit |
37~40 |
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+ CIRCUIT DESCRIPTION |
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IF Unit |
41~44 |
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CPU Unit |
44~46 |
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1) |
Receiver System |
3~5 |
SVV UniL |
46 |
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2) |
Transmitter System |
5 |
UVCO Unit |
46 |
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3) |
PLL Synthesizer Circuit |
6 |
VVCO Unit |
47 |
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4) |
CPU and Peripheral Circuit |
6~7 |
CHARGE Unit |
47 |
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5) |
Terminal function of CPU |
10~12 |
PTT Unit |
47 |
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6) |
Terminal function of 4094 |
13 |
Mechanical Parts |
48 |
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7) |
Frequency Table |
13 |
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+ SEMICONDUCTOR DATA |
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+ ADJUSTMENT |
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l) AK2341 |
14 |
1) |
Required Test Equipment |
49 |
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2) |
BU4094BF |
15 |
2) |
Adjustment for DJ-G5T/E |
50 |
3) |
HD6433877 |
16 |
3) |
Adjustment Points |
51 |
4) LC75366M |
17 |
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5) LC73881 M |
18 |
+ PC BOARD VIEW |
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6) M64076GP |
19 |
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7) MC3372VM |
20 |
1) |
RF Unit Side A |
52 |
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8) |
NJM21 00V |
20 |
2) |
RF Unit Side B |
53 |
9) |
NJM2070M |
21 |
3) |
IF Unit Side A |
54 |
10) RH5RH501A |
22 |
4) |
1F Unit Side B |
55 |
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11) RH5RH651A |
22 |
5) CPU Unit Side A |
56 |
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12) S-80730SL-AT |
23 |
6) |
CPU Unit Side B |
57 |
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13) S-AV28 |
24 |
7) |
UVCO Unit |
58 |
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14) S-AU57 |
24 |
8) |
VVCO Unit |
58 |
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15) S-81237SG-QE |
25 |
9) |
PTT Unit Side A |
58 |
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16) TA75S01F |
25 |
10) PTT Unit Side B |
58 |
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17) TA75W01FU |
26 |
11) CHARGE Unit |
58 |
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18) TC4W53F |
26 |
12) SW Unit Side A |
58 |
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19) TK10930VTL |
27 |
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20) uPD1 6430AGF-3B9 |
28 |
+ VOLTAGE TABLE |
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21) 24LC16B |
29 |
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22) Transistor, Diode and LED Outline Dra 30 |
1) |
Diode |
59~60 |
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23) LCD Unit |
31~32 |
2) |
IC |
60~63 |
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3) |
Transistor |
63~64 |
+ EXPLODED VIEW |
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+ BLOCK DIAGRAM |
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1) |
Charge Unit |
33 |
66~67 |
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2) |
RF Unit |
34 |
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3) |
IF Unit/CPU Unit |
35 |
+ SCHEMATIC DIAGRAM |
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4) |
Front/Rear View |
36 |
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1) |
RF Unit |
68~69 |
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2) |
IF Unit |
70~71 |
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3) |
CPU Unit |
72~73 |
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4) |
UVCO Unit |
74 |
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5) |
VVCO Unit |
75 |
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6) CHARGE Unit |
76 |
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7) |
PTT Unit |
76 |
ALINCO INCORPORATED
TWIN 21 M.I.D. TOWER BUILDING 23F, 1-61, 2-CHOME,
SHIROMI CHUO-KU , OSAKA, 540-8580 JAPAN
Tel (81)6-6946-8150 fax (81)6-6946-8175 e-mail: export@alinco.co.jp
General |
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VHF |
UHF |
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108.000~173.995 |
420.000~479.995 |
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DJ-G5T |
L-band |
(AM FM) |
(FM) |
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1 30.000~l 73.995 |
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Receiver range(MHz) |
R-band |
(FM) |
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DJ-G5E |
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144.000~145.995 |
430.000~439.995 |
Transmitter range( |
DJ-G5T |
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144.000~147.995 |
438.000~449.995 |
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DJ-G5E |
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144.000~145.995 |
430.000~439.995 |
Modulation |
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F2E.,F3E(FM) |
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Antenna impedance |
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50 ohm |
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Operating temperature range |
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-10 ~ +60*C |
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Supply voltage (rated voltage) |
External (V) |
4.5~16.0(13.8) |
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Ni-Cd(V) |
4.5~16.0(4.8) |
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Tx Hi: 13.8VDC(external) |
approx. 1.4A |
approx. 1.5A |
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Tx Hi: 9.6VDC(Ni-Cd) |
approx. 1.4A |
approx. 1.5A |
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Tx Hi: 7.2VDC(Ni-Cd) |
approx. 1.4A |
approx. 1.5A |
Current |
Tx Hi: 4.8VDC(Ni-Cd) |
approx. 1.0A |
approx. 1.2A |
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TxMid: 4.8VDC(Ni-Cd) |
approx. |
0.8A |
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(regulated supply voltage) |
TxLo: 4.8VDC(Ni-Cd) |
approx. 0.5A |
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Rxsquelched(twinband) |
approx. 85mA |
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Rxsquelched(monoband) |
approx. 50mA |
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Rx Battery-Save On (800/200 twin band) |
approx. 25mA |
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Ground |
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Negative ground |
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Microphone impedance |
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2k ohm |
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Dimensions without projection (with projections) |
W57(63) x H138(155) x D27.5(31.5) |
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Weight (Ant. belt-clip, strap, and Ni-Cd EBP-33N inclusive) |
approx. 350g |
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Transmitter |
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Power output |
Hi: 13.8VDC(external) |
approx. 5W |
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Hi: 9.6VDC(Ni-Cd) |
approx. 4.5W |
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(regulated supply voltage) |
Hi: 7.2VDC(Ni-Cd) |
approx. 3.5w |
approx. 3W |
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Hi: 4.8VDC(Ni-Cd) |
approx. l.5W |
approx. 1 W |
Modulation |
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Variable |
reactance |
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Maximum deviation |
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+/-5kHz |
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Spurious emission |
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notmorethan-60dB |
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Receiver |
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System |
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Double-conversion superheterodyne |
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First l.F. |
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38.9MHz |
45.1 MHz |
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Second l.F. |
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455kHz |
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Sensitivity |
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L-band: 144.000~147.995MHz |
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R-band: 438.000~449.995MHz |
better than -16dBu |
better than -15dBu |
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L-band: 438.000~449.995MHz |
better than -12dBu |
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DJ-G5T |
R-band: 144.000~147.995MHz |
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L-band: 144.000~145.995MHz |
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better than -15dBu |
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R-band: 430.000~439.995MHz |
better than -16dBu |
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L-band: 430.000~439.995MHz |
better than-12dBu |
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DJ-G5E |
R-band: 144.000~145.995MHz |
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Squelch sensitivity |
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better than-20dBu (0.1uV) |
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Selectivity (-6dB/-60dB) |
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more than 12kHz / less than 30kHz |
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A.F.output(@10% distortion) |
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100mW(8ohm load) |
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CIRCUIT DESCRIPTTON
1) Receiver System
The receiver system is the double-conversion superheterodyne. ln L band the first IF is 38.9MHz and second IF is 455kHz, and in R band the first IF is 45.1MHz and second IF is 455kHz.
1 Front End
1-1 108.00MHz~ 173.995MHz (144M Band Main)
The receiving signal is passed through the low-pass filter (L90, L91 , L92, C220, C229, C230, C231, C235), and amplified in RF amplifier (Q77), then led to the resonant circuit (L85, L86, varicap D68, D69). The signal is amplified in RF amplifier Q75, and passed through the resonant circuit (L81 , L82 varicap D66 and D67), then converted into the frequency of 38.9MHz in the mixer Q79.
Two resonant circuits consisting of L85, L86, varicap D68, D69, L81 , L82, varicap D66, D67, are controlled by the trucking voltage to obtain the best condition to the receiving frequency.
The local signal from VVCO OUT is passed through the buffer Q79, and fed to the base of the mixer Q76. The sum of the displayed frequency and IF frequency is employed.
1-2 420.00MHz~51 1.995MHz: (430M Band Sub)
The receiving signal is passed through the band-pass filter (C59, C60, C61 , C66, C67, C68, L57, L58, L53, L54), RF amplifier (Q62, Q72), band switch (D63), and high-pass filter (C175, C176, C186, C187, L77, L78), and converted into the frequency of 38.9MHz in mixer (Q74).
The local signal is passed through the buffer (Q70), and the difference frequency between IF frequency and the displayed frequency is fed to the base of the mixer (Q74).
1-3 130.00MHz~173.995MHz (144M Band Sub)
The receiving signal is passed through the low-pass filter (L90, L91 , L92, C220, C229, C230, C231 and C235), and RF amplifier (Q68), low-pass fitter (C145, C146, C153 and C154), then converted into the frequency of 45.1MHz in the mixer (Q67).
The local signal is passed through the buffer (Q69), then the sum of displayed frequency and IF frequency is fed to the base of the mixer (Q67).
1-4 420.00MHz~51 1.995MHz (433M Band Main)
The receiving signal is passed through the band-pass filter (C59, C60, C61 , C66, C67, C68, L57, L58, L53, L54), RF amplifier (Q62, Q72) and the band-pass filter (FL51), and amplified in RF amplifier (Q63), then converted into the frequency of 45.1MHz.
The band-pass filter (FL51) is the helical filter to obtain the band width characteristics.
The local signal from UVCO OUT is passed through the diode switch (D58), buffer (Q64), then the difference frequency between the displayed and IF is fed to the base ofthe mixer (Q61).
2 IF
2-1 L Band
The sum/difference between the receiving signal and local signal is made in each mixer. The crystal filter (XF53) selects the difference of 38.9MHz and
eliminates unwanted signal, then it is amplified in the first IF amplifier (Q78).
2-2 R Band
The sum/difference between the receiving signal and local signal is made in each mixer. The crystal filter (XF51) selects the difference of 45.l MHz and
eliminates unwanted signal, then it is amplified in the first IF amplifier (Q60). 3
3 Demodulation
3-1 L Band
After amplified in the first IF amplifier (Q78), the signal is fed to the demodulation IC (IC302) Pin24. The first IF signal outputted to Pin24 (38.9MHz) is mixed in the mixer of IC302 with the local signal of 38.455MHz which is oscillated in the oscillation circuit of IC302 and the crystal oscillator (X303), then converted into the second IF signal of 455kHz. The second IF is supplied from the IC302 Pin3. After eliminating unwanted signal by the ceramic filter (FL302), the signal is applied to Pin5 and Pin7.
As for the FM demodulation, the second IF signal applied to Pin7 is demodulated in limiter amplifier and quadrature detection circuit of IC302 when IC302 Pinl4 is open, and it is outputted from Pinl2 as the audio signal.
As for the AM demodulation, the second IF signal applied to Pin5 is demodulated in AM amplifier and AM detection circuits of IC302 when the voltage of IC302 Pin14 is low, and it is outputted from Pinl3 as the audio signal.
3-2 R Band |
After amplified in the first IF amplifier (Q60), the signal is applied to the demodula- |
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tion lC301, Pinl6. It is mixed in the mixer of IC301 with the local signal of |
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45.555MHz which is oscillated in the oscillation circuit and the crystal oscillator |
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(X301) of IC301, then converted into the second IF signal of 455kHz. The second |
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IF is outputted from IC301 Pin3, and applied to Pin5 and Pin7 after eliminating |
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unwanted signal by the ceramic filter (FL30l). |
4 Audio Circuit
4-1 FM (L band The audio signal supplied from IC302 is pre-emphasized white transmitting. So the audio frequency should be compensated in the de-emphasis circuit (R366, C363), then the signal is passed through FM/AM selection switch (IC303). The frequency of 300Hz or below is cut in the audio high-pass fitter circuit (Q313), and it is applied to the electronic volume (IC304) Pin1. The signal is passed through the buffer (IC306), and adjusted the volume, then led to the audio power amplifier (IC307) to drive the speaker.
4-2 AM (L band When AM mode is selected, the switching transistor (Q312) is turned ON, and IC302 Pin14 becomes low, then AM demodulation circuit of IC302 is activated.
The audio signal provided from IC302 Pin14 is passed through the de-emphasis circuit (R362, C360), and FM/AM selection switch (IC303), then led to audio highpass filter circuit (Q313), electronic volume (IC304), buffer (IC306) and the audio power amplifier (IC307) to drive the speaker.
Note:
The FM detection circuit in IC301 (TK10930) is operating even while AM receiving. (The squelch circuit is activated by FM detection output.) So the FM audio is not outputted by FM/AM selection switch (IC303).
4-3 FM (R band)
The audio signal supplied by IC301 Pin9 is compensated the audio frequency characteristics in de-emphasis circuit (R330, C327), and the signal is passed through the audio high-pass filter (Q306), then applied to the electronic volume (IC304) Pin20. It is passed through the buffer (IC305), and led to the audio power amplifier (IC307) to drive the speaker.
5 Squelch Circuit
5-1 L Band
A part of the audio signal of IC302 Pin12 is selected and amplified by the noise amplifiers in R351 , R352, R350, R353, C351, C352, C353, and IC302. Then it is supplied from IC302 Pin20 to be amplified again in the noise amplifier (Q309). The amplified noise factor is rectified in D302, adjusted the level in VR303, and applied to CPU (IC508) Pin96, then converted to the digital signal.
4
5-2 R Band
A part of the audio signal of IC301 Ping is selected and amplified by the noise amplifiers in R316, R317, R318, R319, C318, C319, C320, and IC301. Then it is supplied from IC301 Pin11 to be amplified again in the noise amplifier (Q303). The amplified noise factor is rectified in D301 , adjusted the level in VR30l , and applied to CPU (IC508) Pin97, then converted to the dligital signal.
6 Attenuator Circuit
6-1 VHF Band
When the ATT key is pressed, "L" is applied from shift resistor (IC52) Pin14, and D71 is turned ON, then the Attenuator circuit (Q56, R151, C194, R160) is activated.
The receiving signal passed through the low-pass filter is attenuated approximately 15dB by the attenuator to decrease the interference of the adjacent channel, etc.
6-2 UHF Band
When the ATT key is pressed, "L" is applied from shift resistor (IC52) Pin13, and D55 is turned ON, then the Attenuator circuit (Q56, R73, C90, R80) is activated. The receiving signal passed through the low-pass filter is attenuated approximately 15dB by the attenuator to decrease the interference of the adjacent channel, etc.
2) Transmitter System
1 Demodulation Circuit
The voice is converted into the electric signal by the internal or external microphone, then it is applied to the mic amplifier (IC310). This IC310 has two operational amplifiers. The pre-emphasis and IDC consist of Pin1, 2 and 3, and the splutter filter consists of Pin5, 6 and 7.
The output from the microphone amplifier is passed through variable resistors VR305 and VR306 for maximum deviation adjustment to cathode of varicap diode of the VCO, controlling the VCO frequency and so producing a frequency-modula- tion.
2 Power Amplifier
2-1
The transmitting signal oscillated in VVCO is amplified in pre-drive amplifier (Q81) and drive amplifier (Q80), then fed to the power module (IC54). The transmitting signal amplified in IC54 is supplied to the antenna after attenuated the harmonics enough in the antenna switch (D72) and the Low-pass filter (L90, L91 , L92, C220, C229, C230,C231 , C235).
2-2
The transmitting signal oscillated in UVCO is amplified in pre-drive amplifier (Q54) and drive amplifier (Q53), then fed to the power module (IC51). The transmitting signal amplified in IC51 is supplied to the antenna after attenuated the harmonies enough in the antenna switch (D52), and the bandi)ass filter (L57, L58, L53, L54, C59, C60, C61, C66, C67, C68).
3 APC Circuit
3-1 VHF Band A part of transmitting voltage from low-pass filter is detected by D74, and converted into the DC voltage. The converted detection voltage is differential amplified, and the output voltage controls the bias voltage of power module (IC54) Pin2 to fix the transmitting power.
3-2 UHF Band
A part of transmitting voltage from low-passS filter is detected by D56, and converted into the DC voltage. The converted detection voltage is differential amplified, and the output power controls the bias voltage of power module (IC51) Pin2 to fix the transmitting power.
5
3) PLL Synthesizer Circuit
1 PLL
The data is sent to the PLL IC (IC53) Pin2 and the clock is sent to Pin3 from CPU (IC508), then the ratio of the division is decided each in L band and R band. Each VCO oscillating signal is amplified in the buffer (Q73: L band, Q66: R band), and the signal in L band is applied to Pin15, then the signal in R band is applied to Pin6. The programmable divider of IC53 is determined by frequency data, and it divides (1/N) input signal of IC53. Resulting signal will be 5kHz or 6.25kHz.
2 Reference frequency division
The reference frequency of 5kHz or 6.25kHz according to the channel step is produced by dividing the reference oscillation 12.8MHz (X51) by 2560 or 2048, the data from CPU (IC508). The channel steps of 5kHz, 10kHz, 15kHz, 20kHz, 25kHz, 30kHz and 50kHz use the reference frequency of 5kHz, and the channel step of l2.5kHz uses the reference frequency of 6.25kHz.
3 Phase comparator
The reference frequency of IC53 is 5kHz or 6.25kHz.
The VCO output frequency divided by N is compared with 5kHz or 6.25kHz in the phase comparator.
4 PLL Loop Filter Circuit
If the phase error should occur in PLL, the charge pump of IC53 Pin13 (L band) and Pin8 (R band) outputs the pulse. The signal is converted into the DC voltage in PLL loop filter, then inputted to the varicap of each VCO unit.
5 VVCO Circuit (VHF Band)
Q705 is turned ON, and the desired frequency is oscillated in the Colpitts osclllator consisting of Q701. The frequency control voltage is apprled to the varicap (D702, D703), and the osciflating frequency is changed, then amplified in VCO buffer (Q703), and outputted from the VCO unit.
6 VVCO Circuit (UHF Band)
Q704 is turned ON, and the desired frequency is oscillated in the Colpitts oscillator consisting of Q702. The frequency control voltage is applied to the varicap (D704, D705), and the oscillating frequency is changed, then amplified in VCO buffer (Q703), and outputted from the VCO unit.
7 UVCO Circuit (UHF Band)
Q605 is turned ON, and the desired frequency is oscillated in the Colpitts oscillator consisting of Q601. The frequency control voltage is applied to the varicap (D602, D603), and the oscillating frequency is changed, then amplified in VCO buffer (Q603), and outputted from the VCO unit.
8 UVCO Circuit (VHF Band)
Q604 is turned ON, and the desired frequency is oscillated in the Colpitts oscillator consisting of Q602. The frequency control voltage is applied to the varicap (D604, D605), and the oscillating frequency is changed, then amplified in VCO buffer (Q603), and outputted from the VCO unit.
4) CPU and Peripheral Circuit
1 LCD Display Circuit
The strobe, serial data, and clock are sent to the LCD driver (IC503) Pin 75~77 from CPU (IC508), and the LCD is activated with 1/4 duty and l/3 bias. The frame frequency is 137Hz.
6
2 Display Lamp Circuit
The regulated power supply circuit consisting of Q505, Q507, R508, R509 supplies H from CPU (IC508) when LAMP key is pressed. Then it is applied to the base
of Q507, and the voltage of 3.5V is outputted from the collector of Q505. lt is fed to each LED (D503~D506, D509,D511 ,D513,D514).
3 Reset and Backup Circuit
When the voltage of approximately 3.0V or more is supplied from the external (DC jack, battery), the reset signal of "H" level is outputted from Reset IC (IC506), and it is fed to CPU (IC508) Ping, then the CPU is reset. Until the clock (X502) of CPU is stabilized, the reset signal is fed to CPU after it is delayed in C522 and R58l.
When the voltage from external is decreased to approximately 3.3V or below, the voltage of Pin18 in CPU is changed from "H" level to "L" level, then the CPU enters into the backup mode.
4 S (signal) Meter Circuit
4-1 L Band
The DC voltage of IC302 Pin16 is low when the signal is weak and high when the signal is strong. This change of DC voltage is adjusted the level at the trim pot (VR304), and led to CPU (IC508) Pin98, then displayed on the LCD as S meter after A/D converting.
4-2 R Band
The DC voltage of IC301 Pin13 is adjusted the level at the trim pot (VR302), and led to CPU (IC508) Pin99, then displayed on the LCD as S meter after A/D converting.
5 Full-duplex Circuit
When the DUP key is pressed, in the receiving side Q317 is turned ON and the audio signal supplied to audio amplifier is decreased. ln transmitting side Q510 is turned ON, and the modulation signaf is decreased to prevent the howling.
6 X-Band Repeater Circuit
ln X-band repeater mode, Q323 is turned OFF, the audio Signal which is opened the squelch is passed through the audio high-pass filter (Q313: L band, Q306:R band), and the signal is applied to the other modulation circuit. Then the radio enters into the transmitting mode.
7 DTMF
7-1 Encoder
The DTMF encoder is built in the CPU (IC508). The DTMF signal output from Pin91 is adjusted its level at VR308, and amplified by the mic amplifier (IC310), then fed to the varicap for modulation of each VCO.
Simultaneously the monitor sound is passed through AF circuit, and it is supplied from the speaker.
7-2 Decoder
A part of the audio signal which is demodulated in IC301 , IC302 is fed to the DTMF switch (IC501), then only the selected band audio signal is fed to DTMF IC (IC502) Pin1. The supplied signal is judged whether valid or not by the signal judgement circuit in IC502, and converted into 4-bit code, then supplied to IC508 Pin85.
8 Tone Squelch
8-1 Encoder
The tone signal supplied from Tone IC (IC504) Pin21 (67.OHz~254.lHz) is adjusted the level at VR307, and amplified n the tone amplifier (Q322), then applied to the varicap for modulation of each VCO.
8-2 Decoder
A part of the audio signal which is demodulated in IC301, IC302 is fed to the tone switch (IC504), then only the selected band audio signal is fed to tone IC (IC504) Pin1.
When the signal is accord with the programmed tone frequency, "LO" is outputted from IC504 Pin14, and it is fed to CPU (IC508) Pin74, then the squelch is opened.
7
5) Terminal function of CPU
No. |
Name |
Pin Name |
I/O |
Description |
H |
L |
HiZ |
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1 |
ANO |
+BD |
I |
Power supply voltage detection |
Analog lN |
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2 |
AVSS |
GND |
/ |
Analogground |
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3 |
TEST |
GND |
/ |
Connect to ground |
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4 |
X2 |
OPEN |
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Open when not used |
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5 |
X1 |
VDD |
/ |
Power supply |
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6 |
VSS |
GND |
/ |
Ground |
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7 |
OSC1 |
OSC1 |
I |
Internal oscillator input |
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8 |
OSC2 |
OSC2 |
O |
Internal osciIIator output |
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9 |
RES |
REST |
I |
CPU reset |
At work |
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10 |
NMl |
VDD |
/ |
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11 |
P20 |
CLK |
O |
Clock input |
Pulse |
Normal |
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12 |
P21 |
DATA |
O |
Data input |
Pulse |
Normal |
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13 |
P22 |
STB1 |
O |
RF4094 strobe |
Pulse |
Normal |
|
14 |
P23 |
STB2 |
O |
lF4094 strobe |
Pulse |
Normal |
|
15 |
P24 |
STB3 |
O |
Electronic volume strobe |
Pulse |
Normal |
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16 |
P25 |
OPEN |
/ |
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17 |
P26 |
+BDSW |
O |
+BD input ON/OFF |
ON |
OFF |
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18 |
lRQO |
BU |
I |
Backup signal input |
Normal |
Backup |
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19 |
P17 |
RE1 |
I |
Rotary encoder up input |
OFF |
ON |
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20 |
P16 |
RE2 |
I |
Rotary encoder down input |
OFF |
ON |
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21 |
P15 |
PSW |
I |
Power switch input |
OFF |
ON |
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22 |
P14 |
OPEN |
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23 |
P13 |
OPEN |
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24 |
TMOFH |
BEEP |
O |
Beep sound output |
Pulse |
Pulse |
Normal |
25 |
TMOFL |
1750 |
O |
Tone burst output |
Pulse |
Pulse |
Normal |
26 |
P10 |
XBR |
O |
Cross band repeater ON/OFF |
Normal |
Repeater |
|
27 |
VSS |
GND |
/ |
Ground |
|
|
|
28 |
V3 |
OPEN |
|
|
|
|
|
29 |
V2 |
OPEN |
|
|
|
|
|
30 |
V1 |
OPEN |
|
|
|
|
|
31 |
VCC |
VDD |
/ |
Power supply terminal |
|
|
|
32 |
PA3 |
LBSY |
I |
LCD driver data input ON/OFF |
Permitted |
Inhibited |
|
33 |
PA2 |
LCLK |
O |
LCD driver clock |
Normal |
Pulse |
|
34 |
PA1 |
LDATA |
O |
LCD driver serial data |
Normal |
Pulse |
|
35 |
PA0 |
LSTB |
O |
LCD driver strobe |
Inhibited |
Permitted |
|
36 |
P50 |
PT5/PTT |
I |
PTT input |
ON |
OFF |
|
37 |
P51 |
MONt |
I |
Monitor key input |
OFF |
ON |
|
38 |
P52 |
TBST |
I |
TX(toneburst)input |
OFF |
ON |
|
39 |
P53 |
FUNC |
I |
Function key input |
OFF |
ON |
|
40 |
P54 |
BP3 |
I |
Band plan (TX/RX expansion) |
Expanded |
Normal |
|
41 |
P55 |
UHF |
I |
UHF key input |
OFF |
ON |
|
42 |
P56 |
VOLU |
I |
VOL up key input |
OFF |
ON |
|
43 |
P57 |
SQLD |
I |
SQL down key input |
OFF |
ON |
|
44 |
P60 |
SQLU |
I |
SQL up key input |
OFF |
ON |
|
45 |
P6l |
SRCH |
I |
Search key input |
OFF |
ON |
|
46 |
P62 |
VHF |
I |
VHF key input |
OFF |
ON |
|
47 |
P63 |
VOLD |
I |
VOL down key input |
OFF |
ON |
|
48 |
P64 |
KIN1 |
I |
Key matrix input1 |
OFF |
ON |
|
49 |
P65 |
KIN2 |
I |
Key matrix input2 |
OFF |
ON |
|
50 |
P66 |
KIN3 |
I |
Key matrix input3 |
OFF |
ON |
|
10
No. |
Name |
Pin Name |
IIo |
Description |
|
H |
L |
HiZ |
51 |
P67 |
KIN4 |
I |
Key matrix input4 |
|
OFF |
ON |
|
52 |
P70 |
KOT1 |
O |
Key matrix output1 |
|
OFF |
ON |
|
53 |
P71 |
KOT2 |
O |
Key matrix output2 |
|
OFF |
ON |
|
54 |
P72 |
KOT3 |
O |
Key matrix output3 |
|
OFF |
ON |
|
55 |
P73 |
KOT4 |
O |
Key matrix output4 |
|
OFF |
ON |
|
56 |
P74 |
PRST |
O |
PLL reset pulse input judgement |
|
Normal |
Pulse |
|
57 |
P75 |
SDA |
I/O |
EEPROM data |
|
PL |
SE |
Normal |
58 |
P76 |
SCL |
O |
EEPROM clock |
|
PL |
SE |
Normal |
59 |
P77 |
50SW |
O |
5V ON/OFF |
|
ON |
OFF |
|
60 |
P80 |
OPEN |
/ |
|
|
|
|
|
61 |
P81 |
TFD |
O |
Full duplex ON/OFF when transmittin |
Full duplex |
Normal |
|
|
62 |
P82 |
UTBST |
O |
Right side TX lamp ON/OFF |
|
ON |
OFF |
|
63 |
P83 |
VTBST |
O |
Left side TX lamp ON/OFF |
|
ON |
OFF |
|
64 |
P84 |
VTXCV |
O |
VHF TX circuit for power supply |
|
|
ON |
OFF |
65 |
P85 |
UTXCV |
O |
UHF TX circuit for power supply |
|
|
ON |
OFF |
66 |
P86 |
VBSY |
O |
VHF RX busy lamp ON/OFF |
|
|
ON |
OFF |
67 |
P87 |
UBSY |
O |
UHF RX busy lamp ON/OFF |
|
|
ON |
OFF |
68 |
P90 |
LAMPC |
O |
LAMP ON/OFF |
|
ON |
OFF |
|
69 |
P91 |
PCNT |
O |
Vcc ON/OFF |
|
ON |
OFF |
|
70 |
P92 |
MUTE |
O |
Microphone mute |
|
Muted |
Normal |
|
71 |
P93 |
RFD |
O |
Full duplex ON/OFF when receiving |
|
Full duplex |
Normal |
|
72 |
P94 |
DSW |
O |
DTMF band selection |
|
VHF |
UHF |
|
73 |
P95 |
TSW |
O |
Tone band selection |
|
VHF |
UHF |
|
74 |
P96 |
TSQD |
I |
Tone detection signal input |
|
None |
Tone |
|
75 |
P97 |
TSTB |
O |
Tone IC strobe |
|
Pulse |
Normal |
|
76 |
VCC |
VDD |
/ |
Power supply |
|
|
|
|
77 |
PD0 |
AM |
O |
AM circuit ON/OFF |
|
AM |
FM |
|
78 |
PD1 |
AFPC |
O |
Audio amplifier power supply ON/OF |
|
ON |
OFF |
|
79 |
PD2 |
VAFS |
O |
VHF AF mute |
|
Muted |
ON |
|
80 |
PD3 |
UAFS |
O |
UHF AF mute |
|
Muted |
ON |
|
81 |
PD4 |
OPEN |
|
|
|
|
|
|
82 |
PD5 |
IFPC |
O |
IF power supply ON/OFF |
|
ON |
OFF |
|
83 |
PD6 |
VRXC |
O |
VHF IF circuit power supply |
|
OFF |
ON |
|
84 |
PD7 |
URXC |
O |
UHF IF circuit power supply |
|
OFF |
ON |
|
85 |
PE0 |
DSD |
I |
DTMF 4-bit data |
|
Normal |
Pulse |
|
86 |
PE1 |
ACK |
O |
DTMF clock |
|
Pulse |
Normal |
|
87 |
PE2 |
DSTD |
I |
DTMF detection signal |
|
Signal |
None |
|
88 |
PE3 |
DPD |
O |
DTMF operation ON/OFF |
|
isstopped |
Operation |
|
89 |
AVCC |
AVCC |
/ |
A/D converter power supply |
|
|
|
|
90 |
TONEM |
TRAC |
O |
VHF trucking voltage output |
|
|
|
|
91 |
TONED |
DTON |
O |
DTMF signal output |
|
|
|
Normal |
92 |
VTref |
VDD |
/ |
Power supply for DTMF reference level |
|
|
||
93 |
AVref |
AVCC |
/ |
Power suppTy for A/D reference level |
|
|
|
|
94 |
AN7 |
BP2 |
I |
Band plan2 |
|
|
|
|
95 |
AN6 |
BP1 |
I |
Band plan1 (destination) |
|
|
|
|
96 |
AN5 |
VSD |
I |
VHF SD signal input |
|
No signal |
Analog in |
|
97 |
AN4 |
USD |
I |
UHF SD signal input |
|
No slgnal |
Analog in |
|
98 |
AN3 |
VSMT |
I |
VHF S meter signal input |
|
Analog in |
|
|
99 |
AN2 |
USMT |
I |
UHF S meter signal input |
|
Analog in |
|
|
100 |
AN1 |
MRC |
I |
Microphone remote control input |
|
Analog in |
|
|
11
6) Terminal function of 4094
|
|
|
|
|
VHF |
VHF |
UHF |
UHF |
BS |
4094 po |
Port Name |
Function |
Logic |
Description |
145 |
433 |
433 |
145 |
OFF |
MHz |
MHz |
MHz |
MHz |
TIME |
|||||
|
|
|
|
|
|
|
|
|
|
Q11 |
UHl |
UHF high power control |
Active Low |
Low power |
H |
H |
H |
H |
H |
Q12 |
UMlD |
UHF middle power control |
Active Low |
UHF middle=H |
H |
H |
H |
H |
H |
Q13 |
VHl |
VHF high power control |
Active Low |
Low power |
H |
H |
H |
H |
H |
Q14 |
VMID |
VHF middle power control |
Active Low |
VHF middle=H |
H |
H |
H |
H |
H |
Q15 |
VATTC |
VHF RX attenuater control |
Active Low |
ATT ON |
H/L |
H/L |
H/L |
H/L |
H |
Q16 |
UATTC |
UHF RX attenuater control |
Active Low |
ATT ON |
H/L |
H/L |
H/L |
H/L |
H |
Q17 |
VCO4SW |
UHF VCO switch |
Active Low |
|
H/L |
H/L |
L |
H |
H |
Q18 |
VCO1SW |
VHF VCO switch |
Active Low |
|
L |
H |
H/L |
H/L |
H |
|
|
|
|
|
|
|
|
|
|
Q21 |
|
|
|
|
|
|
|
|
|
Q22 |
USUBC |
UHF 145MHz power control |
Active Low |
|
H/L |
H/L |
H |
L |
H |
Q23 |
UMAINC |
UHF 435MHz power control |
Active Low |
|
H/L |
H/L |
L |
H |
H |
Q24 |
|
|
|
|
|
|
|
|
|
Q25 |
VSUBC |
VHF 435MHz power control |
Active Low |
|
H |
L |
H/L |
H/L |
H |
Q26 |
VMAlNC |
VHF 145MHz power control |
Active Low |
|
L |
H |
H/L |
H/L |
H |
Q27 |
UPLLC |
UHF VCO power control |
Active Low |
|
H/L |
H/L |
L |
L |
H |
Q28 |
VPLLC |
VHF VCO power control |
Active Low |
|
L |
L |
H/L |
H/L |
H |
7) Frequency Table |
|
|
|
|
|
|
|
|
|
Band |
IF Frequency |
Display frequency |
UP/LOW |
Oscillation frequency |
Mode |
|
|
|
|
VHF |
38.9MHz |
108.000~173.995MHz |
UP |
146.900~212.895MHz |
FM/AM |
|
|
||
|
|
420.000~511.995MHz |
Low |
381.100~473.095MHz |
FM/AM |
|
|
||
UHF |
45.lMHz |
130.000~173.995MHz |
UP |
175.100~219.095MHz |
FM |
|
|
|
|
|
|
420.000~511.995MHz |
Low |
374.900~466.895MHz |
FM |
|
|
|
|
13
(XA0505)
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