DJ-195

Service Manual

CONTENTS

SPECIFICATIONS

1) GENERAL... 2 2) TRANSMITTER... 2 3) RECEIVER... 2

EXPLODED VIEW

1) Front View... 15 2) Rear View... 16

PARTS LIST

MAIN Unit.. 17~19 Mechanical Parts.. 20 Packing Parts.. 20

CIRCUIT DESCRIPTION

1) Receiver System.. 3, 4 2) Transmitter System... 4 3) PLL Synthesizer Circuit.. 4, 5 4) CPU and Peripheral Circuits.. 5, 6 5) M3826M8L***GP (XA0644).. 6~8

ADJUSTMENT

1) Required Test Equipment.. 21, 22 2) Adjustment Mode.. 23~26

SEMICONDUCTOR DATA

1) NMJ2070M T1 (XA210).. 9 2) AT24C16N-10SI-2.7TER (XA0368). 9 3) M5222FP-600C (XA0385).. 10 4) 5) 6) 7) 8) 9) 10) 11) TK14521MTL (XA0515).. 11 M64082AGP (XA0543).. 12 NJM2904V-TE1 (XA0573).. 12 NJM2902V-TE1 (XA0596).. 12 S-81250SG-QD-T1 (XA0619).. 13 S-80845ALMP-EA9-T2 (XA0620).. 13 Transistor, Diode, and LED Ontline Drawings. 14 LCD Connection (EL0044). 14

PC BOARD VIEW

MAIN Unit... 27
SCHEMATIC DIAGRAM.. 28 BLOCK DIAGRAM... 29

ALINCO,INC.

1) GENERAL
Frequency coverage T : TX 144 ~ 147.995MHz E : TX 144 ~ 145.995MHz EAH : TX 135 ~ 173.995MHz TFH : TX 150 ~ 173.995MHz TLH : TX 150 ~ 173.995MHz F3E (FM) 5,10,12.5,15,20,25, & 30kHz 40 channels+1 CALL channel RX 135 ~ 173.995MHz RX 144 ~ 145.995MHz RX 135 ~ 135.995MHz RX 135 ~ 173.995MHz RX 135 ~ 173.995MHz
Mode Channel steps Memory channels Antenna connector Frequency stability Microphone input impedance Power supply requirement Current drain (at 13.8 V DC)
Usable temperature range Dimensions (Projections not included) Weight DTMF Sub audible Tone(CTCSS) Sub audible Tone (DCS)
BNC (50 unbalanced) 5 ppm 2k nominal 6.0 ~ 16.0V DC (negative ground) 1.2A (typical) Transmit high at 5W 200mA (typical) Receive at 280mW 50mA (typical) standby 20mA (typical) Battery save on -10 ~ +60C (14 ~ 140F) 56 (W) 124 (H) 40 (D) mm (with EBP-48N) 2.2"(W) 4.88"(H) 1.57"(D) inches (with EBP-48N) Approx. 375g (13.2oz) (with EBP-48N) 16 Buttons Keypad encoder/decoder installed (39tones) encoder/decoder installed (104codes)

2) TRANSMITTER

Output power Approx. 5W EBP-48N installed Approx. 5W 13.8V DC Approx. 0.8W (LOW) Modulation system Spurious emissions Max. frequency deviation Variable reactance frequency modulation Less than -60dB 5kHz

3) RECEIVER

Receive system Intermediate frequencies Sensitivity(12dB SINAD) Selectivity Audio output power
Double conversion superheterodyne 1st 21.7MHz / 2nd 450kHz Less than -14.0dB (0.2uV) [144 ~ 147.995MHz] Less than -12.0dB (0.25uV) [135 ~ 173.995MHz] -6dB : 12kHz or more -60dB : 26kHz or less 280mW (typical with an 8 load) 200mW (8 10% THD)

1) Receiver System

The receiver system is a double superheterodyne system with a 21.7MHz first IF and a 450kHz second IF.

1. Front End

The received signal at any frequency in the 130.00- to 173.995-MHz range is passed through thelow-pass filter (L2, L3, L11, C13, C14, C15 and C60) and tuning circuit (L16 and D15), and amplified by the RF amplifier (Q11). The signal from Q11 is then passed through the tuning circuit (L17, L18, L19 and varicaps D13, D14 and D16) and converted into 21.7MHz by the mixer (Q9). The tuning circuit, which consists of L16, L17, varicaps D15 and D13, L18, L19, varicaps D14 and D16, is controlled by the tracking voltage form the CPU so that it is optimized for the reception frequency. The local signal from the VCO is passed through the buffer (Q13), and supplied to the source of the mixer (Q9). The radio uses the lower side of the superheterodyne system.

2. IF Circuit

The mixer mixes the received signal with the local signal to obtain the sum of and difference between them. The crystal filter (XF1, XF2) selects 21.7MHz frequency from the results and eliminates the signals of the unwanted frequencies. The first IF amplifier (Q10) then amplifies the signal of the selected frequency.

3. Demodulator Circuit

After the signal is amplified by the first IF amplifier (Q10), it is input to pin 16 of the demodulator IC (IC5). The second local signal of 21.25MHz (shared with PLL IC reference oscillation), which is oscillated by the internal oscillation circuit in IC1 and crystal (X1), is input through pin 1 of IC5. Then, these two signals are mixed by the internal mixer in IC5 and the result is converted into the second IF signal with a frequency of 450kHz. The second IF signal is output from pin 3 of IC5 to the ceramic filter (FL1), where the unwanted frequency band of that signal is eliminated, and the resulting signal is sent back to the IC5 through pins 5. The second IF signal input via pin 5 is demodulated by the internal limiter amplifier and quadrature detection circuit in IC5, and output as an audio signal through pin 10.

4. Audio Circuit

The audio signal from pin 10 of IC5 is compensated to the audio frequency characteristics in the de-emphasis circuit (R104, R103, C122, C121) and amplified by the AF amplifier (Q26). The signal is then input to pin 2 of the electronic volume (IC4) for volume adjustment, and output from pin 1. The adjusted signal is sent to the audio power amplifier (IC3) through pin 2 to drive the speaker.

5. Squelch Circuit

The signal except for the noise component in AF signal of IC5 is cut by the active filter inside IC. The noise component is amplified and rectified, then converted to the DC voltage to output from pin13 of IC5. The voltage is led to pin 2 of CPU and compared with the setting voltage. The squelch will open if the input voltage is lower than the setting voltage.

2) Transmitter System

1. Modulator Circuit
The audio signal is converted to an electric signal in either the internal or external microphone, and input to the microphone amplifier (IC7). IC7 consists of two operational amplifiers; one amplifier (pins 5, 6, and 7) is composed of preemphasis and IDC circuits and the other (pins 1, 2, and 3) is composed of a splatter filter. The maximum frequency deviation is obtained by VR202 and input to the cathode of the varicap of the VCO, to change the electric capacity in the oscillation circuit. This produces the frequency modulation.
2. Power Amplifier Circuit The transmitted signal is oscillated by the VCO, amplified by the pre-drive amplifier (Q4) and drive amplifier (Q3), and input to the final amplifier (Q2). The signal is then amplified by the final amplifier (Q2) and led to the antenna switch (D1) and low-pass filter (L5, L4, L3, L2, C16, C15, C14 and C13), where unwanted high harmonic waves are reduced as needed, and the resulting signal is supplied to the antenna. 3. APC Circuit
Part of the transmission power from the low-pass filter is detected by D6, converted to DC, and then amplified by a differential amplifier. The output voltage controls the bias voltage from the source of Q2 and Q3 to maintain the transmission power constant.
3) PLL Synthesizer Circuit

1. PLL

The dividing ratio is obtained by sending data from the CPU (IC9) to pin 2 and sending clock pulses to pin 3 of the PLL IC (IC1). The oscillated signal from the VCO is amplified by the buffer (Q5) and input to pin 6 of IC1. Each programmable divider in IC1 divides the frequency of the input signal by N according to the frequency data, to generate a comparison frequency of 5 or 6.25kHz.
2. Reference Frequency Circuit The reference frequency appropriate for the channel steps is obtained by dividing the 21.25MHz reference oscillation (X1) by 4250 or 3400, according to the data from the CPU (IC9). When the resulting frequency is 5kHz, channel steps of 5, 10, 15, 20, 25, 30, and 50kHz are used. When it is 6.25kHz, the 12.5kHz channel step is used.
3. Phase Comparator Circuit The PLL (IC1) uses the reference frequency, 5 or 6.25kHz. The phase comparator in the IC1 compares the phase of the frequency from the VCO with that of the comparison frequency, 5 or 6.25kHz, which is obtained by the internal divider in IC1. 4. PLL Loop Filter Circuit If a phase difference is found in the phase comparison between the reference frequency and VCO output frequency, the charge pump output (pin 8) of IC1 generates a pulse signal, which is converted to DC voltage by the PLL loop filter and input to the varicap of the VCO unit for oscillation frequency control. 5. VCO Circuit

A Colpitts oscillation circuit driven by Q1 directly oscillates the desired frequency. The frequency control voltage determined in the CPU (IC9) and PLL circuit is input to the varicaps (D32 and D34). This change the oscillation frequency, which is amplified by the VCO buffer (Q5) and output from the VCO unit.
4) CPU and Peripheral Circuits

1. LCD Display Circuit

The CPU turns ON the LCD via segment and common terminals with 1/4 the duty and 1/3 the bias, at the frame frequency is 112.5Hz.

2. Display Lamp Circuit

When the LAMP key is pressed, H is output form pin 50 of CPU (IC9) to the bases of Q12. Q12 then turn ON and the LEDs (D12 and D17) light.

3. Reset and Backup

When the power form the DC jack or external battery increases from Circuits 0 V to 2.5 or more, H level reset signal is output form the reset IC (IC11) to pin 33 of the CPU (IC9), causing the CPU to reset. The reset signal, however, waits at 100, and does not enter the CPU untilthe CPU clock (X2) has stabilized.
4. S(Signal) Meter Circuit The DC potential of pin 8 of IC5 is input to pin 1 of the CPU (IC9), converted from an analog to a digital signal, and displayed as the S-meter signal on the LCD. 5. DTMF Encoder
The CPU (IC9) is equipped with an internal DTMF encoder. The DTMF signal is output from pin 10, through R102 and R158 (for level adjust-ment), and then through the microphone amplifier (IC7), and is sent to the varicap of the VCO for modulation. At the same time, the monitor-ing tone passes through the AF circuit and is output form the speaker.6. CTCSS Encoder The CPU (IC9) is equipped with an internal tone encoder. The tone signal (67.0 to 250.3 Hz) is output form pin 9 of the CPU to the varicap (D3) of the VCO for modulation.

6. Tone Encoder

The CPU (IC9) is equipped with an internal tone encoder.The tone signal (67.0 to 250.3Hz) is output from pin 9 of the CPU to the varicap (D3) of the VCO for modulation.

7. DCS Encoder

The CPU (IC9) is equipped with an internal DCS code encoder. The code (023 to 754) is output from pin 9 of the CPU to the varicap (D3) of the PLL reference oscillator. When DCS is ON, DCS MUTE circuit (Q15-ON, Q18-ON, Q16-OFF) works. The modulation activates in X1 side only.
8. CTCSS, DCS Decoder The voice band of the AF output signal from pin 10 of IC5 is cut by sharp active filter IC8 (VCVS) and amplified, then led to pin 4 of CPU. The input signal is compared with the programmed tone frequency code in the CPU. The squelch will open when they match. 9. Clock Shift
In the unlikely event that CPU clock noise is present on a particular operating frequency programmed into the radio, you can shift the CPU clock frequency to avoid the CPU clock-noise. The output signal from pin 31 of the CPU turns on Q30. Then the oscillation frequency of X2 will be shifted about 300 ppm.

5) M3826M8L CPU

***GP (XA0644)
Terminal Connection (TOP VIEW)

No. 55

Pin Name P67/AN7 P66/AN6 P65/AN5 P64/AN4 P63/SCLK22/AN3 P62/SCLK21/AN2 P61/SOUT2/AN1 P60/SIN2/AN0 P57/ADT/DA2 P56/DA1 P55/CNTR1 P54/CNTR0 P53/RTP1 P52/RTP0 P51/PWM3 P50/PWM0 P47/SROY1 P46/SCLK1 P45/TXD P44/RXD P43/ /TOUT P42I/NT2 P41/INT1 P40 P77 P76 P75 P74 P73 P72 P71 P70/INTO RESET Xcin Xcout Xin Xout Vss P27 P26 P25 P24 P23 P22 P21 P20 P17 P16 P15/SEG39 P14/SEG38 P13/SEG37 P12/SEG36 P11/SEG35 P10/SEG34 P07/SEG33
Function SMT SQL BAT TIN BP1 BP2 DCSW F/M/KEY CTOUT DTOUT SCL TBST BP4 MUTE CLK DATA STBT STBP UTX RTX BEEP RE2 RE1 SD PTT SDT P5C T5C R5C AFP CLSFT BU RESET Xcin Xcout Xin Xout GND PSW SDA C5C LAMP KI0 KI1 KI2 KI3 KO3 KO2 KO1 KO0 H/L DA2 DA1 DA0 SCR
I/O I I I I I I O I O O O I/O I I/O O I/O I/O O O I I/O I I O I I O O O O O I I I O O O I I I I O O O O O O O O I
Logic A/D A/D A/D A/D A/D A/D Activ high A/D D/A D/A Pulse Pulse/Activ low Activ high Pulse Pulse - Activ low/Pulse Pulse Pulse Pulse - Pulse/Activ low Avtiv low Avtiv low Avtiv low Activ high Activ high Activ low Activ low Activ low Activ low Activ high Activ low Activ low Avtiv low Pulse Activ high Activ high Avtiv low Avtiv low Avtiv low Avtiv low Avtiv low Avtiv low Avtiv low Avtiv low -
Description S-meter input Noise level input for squelch Low battery detection input CTCSS tone input/DSC code input Band plan 1 Band plan 2 DCS signal mute Function/Moniter key input CTCSS tone output/DCS tone output/Tuning voltage out DTMF output/EVR control output Serial clock for EEPROM Tone burst output/UP input while trunking Band plan 4 Microphone mute/Bank change input while trunking Serial clock output for PLL,CTCSS,and trunking board
Serial data output for PLL,CTCSS, and trunking board/PLL unlock signal input Trunking board detedtion(when PSW is on)/Storobe signal to trunking board
Strobe for PLL IC UART data transmission output UART data reception output Beep tone/Band plan 3(when PSW is on) Rotary encoder input Signal detection output PTT input Trunking signal detection input PLL power ON/OFF output TX power ON/OFF output RX power ON/OFF output AF AMP power ON/OFF output CLOCK frequency shift Backup signal detection input Reset input Main clock input Main clock output CPU GND Power switch input Serial data for EEPROM C5V power ON/OFF output Lamp ON/OFF Key matrix input
Key matrix output Tx power H/L DA converter for output power DA converter for output power DA converter for output power SCR input

No. 100

Pin Name P06/SEG32 P05/SEG31 P04/SEG30 P03/SEG29 P02/SEG28 P01/SEG27 P00/SEG26 P37/SEG25 P36/SEG24 P35/SEG23 P34/SEG22 P33/SEG21 P32/SEG20 P31/SEG19 P30/SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 Vcc Vref Avss COM3 COM2 COM1 COM0 VL3 VL2 C2 C1 VL1

Function AFC S31 S30 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1 S0 VDD Vref Avss COM3 COM2 COM1 COM0 VL3 VL2 I C1 VL1
I/O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O I

Logic Activ high A/D

Description AF tone control

LCD segment signal

CPU power terminal AD converter power supply AD converter GND LCD COM3 output LCD COM2 output LCD COM1 output LCD COM0 output LCD power supply LCD power supply
1) NMJ2070M T1 (XA210) Low Voltage Power Amplifier Equivalent Circuit
2) AT24C16N-10SI-2.7TER (XA0368) 16K bits CMOS Serial EEPROM
3) M5222FP-600C (XA0385) Electronic Volume
4) TK14521MTL (XA0515) IF System

5) M64082AGP (XA0543)

6) NJM2904V-TE1 (XA0573) Dual Single Supply Operational Amplifier
7) NJM2902V-TE1 (XA0596) Quad Single Supply Operational Amplifier
8) S-81250SG-QD-T1 (XA0619) Top View
9) S-80845ALMP-EA9-T2 (XA0620) Voltage Regulator
10) Transistor, Diode, and LED Ontline Drawings Top View
RSL135 TE11 XD0066 DA204U T106 XD0130 1SV214 TPH4 XD0131 MA741WA TX XD0251 MA741WK XD0252 S3DG7 XD0261 MA729-TX XD0291

U2FWJ44N (TE12R) XD0294

MA2S30400L XD0312

MA2S111-TX XD0323

HSU277TRF XD331

RB706F-40-T106 XD0332

MRF9745T1 XE0034

2SK2975-T11-A XE0038

2SK882-GR-TE85L XE0040

BRPG1201W TR XL0028

SML-310MTT86 XL0036

2SC4081 T106R XT0095

2SA1036K T146Q XT110

2SD2216R-TX XT0135

2SB766A-TX XT0170

2SC4808-TX. AR XT0171

2SC4618 XT0172

2SC2915 XT0178

UN9216-R-TX XU0099

RN2107 TE85L XU0192

RN1107 TE85L XU0193

RN2111 TE85L XU0194

XP1114 (TX) XU0161

XP1501-TX XU0172

RN1104 TE85L XU0195
11) LCD Connection (EL0044)
SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31

1) Front View

2) Rear View

Ref. No.

C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C73 C74 C75 C76 C77 C78

Parts No. Description

CU0108 CU3035 CU3016 CU3035 CU3111 CU3035 CU3016 CU3035 CE0392 CU3035 CS0405 CU3035 CU3035 CU0108 CU3047 CS0404 CU3035 CS0408 CU3035 CU0108 CS0408 CU3035 CU3035 CE0392 CE0373 CU0108 CU3047 CU3035 CS0404 CS0404 CU3047 CU3035 CU3111 CU3111 CU3035 CE0397 CU3047 CU3051 CU3051 CU0108 CU3111 CE0396 CU3051 CU3111 CU3111 CS0404 CU3035 CU3111 CU3025 CU3035 CU3111 CU3041 CU0108 CU3111 CU3047 CU3038 CU3053 CU3111 CU3035 CU3111 CU3035 CU3035 CU3035 CU0108 CU3051 CU3047 CU3021 CU3101 CU3111 CU3111 CS0404 CU3047 CU3047 CU0108 CU3047 CU0108 CS0405 CU3014 CU3013 Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Electrolytic C Chip C Chip Tantal Chip C Chip C Chip C Chip C Chip Tantal Chip C Chip Tantal Chip C Chip C Chip Tantal Chip C Chip C Electrolytic C Electrolytic C Chip C Chip C Chip C Chip Tantal Chip Tantal Chip C Chip C Chip C Chip C Chip C Electrolytic C Chip C Chip C Chip C Chip C Chip C Electrolytic C Chip C Chip C Chip C Chip Tantal Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip C Chip Tantal Chip C Chip C Chip C Chip C Chip C Chip Tantal Chip C Chip C
LMK212BJ105KG C1608JB1H102KT-AS C1608CH1H270JT-AS C1608JB1H102KT-AS C1608JB1C104KT-N C1608JB1H102KT-AS C1608CH1H270JT-AS C1608JB1H102KT-AS 6MV47UW C1608JB1H102KT-AS 10MCS475MATER C1608JB1H102KT-AS C1608JB1H102KT-AS LMK212BJ105KG C1608JB1H103KT-N 6MCM106MATER C1608JB1H102KT-AS 6MCM156MATER C1608JB1H102KT-AS LMK212BJ105KG 6MCM156MATER C1608JB1H102KT-AS C1608JB1H102KT-AS 6MV47UW 16MV 100UW LMK212BJ105KG C1608JB1H103KT-N C1608JB1H102KT-AS 6MCM106MATER 6MCM106MATER C1608JB1H103KT-N C1608JB1H102KT-AS C1608JB1C104KT-N C1608JB1C104KT-N C1608JB1H102KT-AS MVS16VC47MF46 C1608JB1H103KT-N C1608JB1E223KT-NS C1608JB1E223KT-NS LMK212BJ105KG C1608JB1C104KT-N MVS6.3VC100MF46 C1608JB1E223KT-NS C1608JB1C104KT-N C1608JB1C104KT-N 6MCM106MATER C1608JB1H102KT-AS C1608JB1C104KT-N C1608CH1H151JT-AS C1608JB1H102KT-AS C1608JB1C104KT-N C1608JB1H332KT-NS LMK212BJ105KG C1608JB1C104KT-N C1608JB1H103KT-N C1608JB1H182KT-AS C1608JF1E333ZT-N C1608JB1C104KT-N C1608JB1H102KT-AS C1608JB1C104KT-N C1608JB1H102KT-AS C1608JB1H102KT-AS C1608JB1H102KT-AS LMK212BJ105KG C1608JB1E223KT-NS C1608JB1H103KT-N C1608CH1H680JT-AS C1608JB1C473KT-NS C1608JB1C104KT-N C1608JB1C104KT-N 6MCM106MATER C1608JB1H103KT-N C1608JB1H103KT-N LMK212BJ105KG C1608JB1H103KT-N LMK212BJ105KG 10MCS475MATER C1608CH1H180JT-AS C1608CH1H150JT-AS

R137 R138 R139 R140 R141 R142 R143 R144 R145 R146 R147 R148 R149 R150 R151 R152 R153 R154 R155 R156 R157 R158 R158 R159 R160 R161 R162 R163 R164 R165 R166 R167 R168 R169 R170 R171 R172 R173 R174 R175 R176 R177 R178 R179 R180 R181 R182 R183 R184 R185 R186 R187 R188 R189 R190 R191 R192 R193 R194 R195 R196 R197 R198 R199 R200 R201 R202 R203 R204 R205 R206 R207 R208 SW17 SW18 TC1 VR1 W1 W2 W3 X1 X2 XF1 XF2
RK3062 RK3069 RK3038 RK3065 RK3061 RK3058 RK3050 RK3062 RK3062 RK3040 RK3070 RK3052 RK3046 NC RK3038 RK3046 RK3038 RK3050 RK3046 RK3048 RK3062 RK3055 RK3056 RK3038 RK3074 RK3069 RK3060 RK3050 RK3050 RK3048 RK3038 RK3048 RK3038 RK3074 RK3062 RK3062 RK3001 RK3066 RK3066 RK3062 RK3074 RK3066 RK3062 RK3062 RK3046 RK3058 RK3046 NC RK3054 NC NC NC RK3026 RK3074 RK3058 RK3050 RK3059 RK3063 RK3060 RK3050 RK3067 RK3050 RK3050 RK2042 RK3054 RK3057 RK3045 RK3050 RK3050 RK3050 RK3050 RK3052 NC UU0030 UU0030 CT0012 RH0140 MACL07AA MACL07AA MACLH2GG XQ0112 XQ0077 XF0041 XF0041 Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R
MCR03EZHJ104 MCR03EZHJ394 MCR03EZHJ102 MCR03EZHJ184 MCR03EZHJ823 MCR03EZHJ473 MCR03EZHJ103 MCR03EZHJ104 MCR03EZHJ104 MCR03EZHJ152 MCR03EZHJ474 MCR03EZHJ153 MCR03EZHJ472 MCR03EZHJ102 MCR03EZHJ472 MCR03EZHJ102 MCR03EZHJ103 MCR03EZHJ472 MCR03EZHJ682 MCR03EZHJ104 MCR03EZHJ273 MCR03EZHJ333 MCR03EZHJ102 MCR03EZHJ105 MCR03EZHJ394 MCR03EZHJ683 MCR03EZHJ103 MCR03EZHJ103 MCR03EZHJ682 MCR03EZHJ102 MCR03EZHJ682 MCR03EZHJ102 MCR03EZHJ105 MCR03EZHJ104 MCR03EZHJ104 MCR03EZHJ000 MCR03EZHJ224 MCR03EZHJ224 MCR03EZHJ104 MCR03EZHJ105 MCR03EZHJ224 MCR03EZHJ104 MCR03EZHJ104 MCR03EZHJ472 MCR03EZHJ473 MCR03EZHJ472 MCR03EZHJ223

TFH.TLH T.E.EAH

Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Chip R Switch Switch Trimmer Volume Wire Wire Wire Crystal Crystal MCF MCF
MCR03EZHJ101 MCR03EZHJ105 MCR03EZHJ473 MCR03EZHJ103 MCR03EZHJ563 MCR03EZHJ124 MCR03EZHJ683 MCR03EZHJ103 MCR03EZHJ274 MCR03EZHJ103 MCR03EZHJ103 MCR18EZHJ152 MCR03EZHJ223 MCR03EZHJ393 MCR03EZHJ392 MCR03EZHJ103 MCR03EZHJ103 MCR03EZHJ103 MCR03EZHJ103 MCR03EZHJ153 EVQPJ005 EVQPJ005 CTZ3S-10A-W1-P MVR22HXBRN472 #30A02-070-02 #30A02-070-02 #30AH1-025-H1 UM-5 21.250MHZ 38C 3.686400MHZ UM5 21.7M 21R15A5 UM5 21.7M 21R15A5
AF0012 AF0029 AK0001 AN0012 DG0035 DP0126 ES0011AZ FF0029 FG0274 FG0285 FG0286 FG0289 FG0290 FG0291 FM0176 FM0177 FM0178 FM0179 FP0142 KZ0098 MACLH2GG NK0068 RD0108 SS0092 ST0063 TG0033 TL0022 TS0142 TW0020 UE0029A Screw Screw Nut
OPH M2+4 FE/ZN3 0PH 2+9 FE/N 3 0PH B2+4 FE/N 3 RND N7X0.75 BR/B.ZN LCD LIGHT LCD PANLE DJ195 036M9014 Sheet DC CAP 16 KEY RUBBER DJ195 JACK CAP DJ195 TERMINAL RUBBER 195 PTT RUBBER DJ195 LCD RUBBER CONNECT. PLUS TERMINAL DJ195 RADIATIVE PLATE 195 DJ195 ANTENNA EARTH DJ195 BLIND SHEET DJ195 FRONT CASE DJ195 #30AH1-025-H1 DIAL KNOB DJ195 J1/6Z CHASSIS DJ195 LCD HOLDER DJ195 SP HIMELON DJ195 REFLECTIVE SHEET 195 VCO case XH655 W.PROOF A XH720 ANT.CONNECT.DJ460

UR0019 YX0024 Dial

RH70N00E20 (RY-6320) LCD TAPE DJ195

Mechanical Parts

Packing Parts
EA57 EA58 PR0309 EBP-48N HK0465 HM0189 HU0150 HU0151 BH0011 BB0009Y HP0003 PR0237 DS0388A DS0411 PS0313A HH0061 EDC93 EDC94 PH0009A PT0004A PK0076 PR0421 DS0388A DS0411 Antenna Antenna CE label EBP-48N Pacage Carton 10 Inner C Inner 5 Belt clip Strap Protection Bag 5*75*110 FCC label Spec.sheet Spec.sheet DJ195T Instruction Manual Air cap Wall charger EDC-93 Wall charger EDC-94 Warranty Serial No. Carton Schematic Diagram Serial No. label Spec. sheet with out Serial Spec. sheet DJ195 with out Serial T.E.EAH TFH.TLH E.EAH

Speaker

E.EAH.TFH.TLH T

T E.EAH.TFH.TLH T

1) Required Test Equipment
The following items are required to adjust radio parameters: 1. Regulated power supply Supply voltage: Current: 2. Digital multimeter Voltage range: Current: Input resistance: 3. Oscilloscope Measurable frequency: 4. Audio dummy load Impedance: Dissipation: Jack: 5. SSG Output frequency: Output level: Modulation: 6. Spectrum Analyzer Measuring range: 7. Power meter Measurable frequency: Up to 200MHz Impedance: 50, unbalanced Measuring range: 0.1W -10W 8. Audio volmeter Measurable frequency: Up to 100kHz Sensitivity: 1mV to 10V 9. Audio generator Output frequency: Output impedance: 10.Distortion meter/SINAD meter Measurable frequency: 1kHz Input level: Up to 40dB Distortion: 1% - 100% 11.Frequency counter Measurable frequency: Up to 200MHz Measurable stability: Approx. +/-0.1ppm

5-14V DC 3A or more

FS = Approx. 20V 10A or more High impedance

Audio frequency

8 1W or more 3.5mm
200MHz or more -20dBu/0.1uV -120dBu/1V FM

Up to 2GHz or more

67Hz to 10kHz 600, unbalanced
12.Linear detector Measurable frequency: Up to 200MHz Characteristics: Flat CN: 60dB or more Note s Standard modulation: 1kHz +/-3.5kHz/DEV s Reference sensitivity: 12dB SINAD s Specified audio output leve: 200mW at 8 s Standard audio output level: 50mW at 8 s Use an RF cable (3D2W:1m) for test equipment. s Attach a fuse to the RF test equipment. s All SSG outputs are indicated by EMF. s Supply voltage for the transceiver: 13.8VDC

2) Adjustment Mode

The DJ-195 does not require a serviceperson to manipulate the components on the printed-circuit board, except the trimmer when adjusting reference frequency and deviation.Most of the adjustments for the transceiver are made by using the keys on it while the unit is in the adjustment mode.Because the adjustment mode temporarily uses the channels, frequency must be set on each channel before adjustments can be made.For instructions on how to program the channels, see the DJ-195 INSTRUCTION MANUAL which came with the product.In consideration of the radio environment, the frequency on each channel must be near the value (+/-1MHz) listed in the table below.To enter the adjustment mode, set key lock and input 490217.Decimal point at 100MHz and 10MHz appears in LCD. (To release the mode, set key-lock and input 490217.)

Channel frequencies used in the adjustment mode
Channel 17 Channel function Reference frequency adjustment High power adjustment Low power adjustment Minimum frequency sensitivity adjustment Medium frequency sensitivity adjustment Maximum frequency sensitivity adjustment S-meter ( 1 ) adjustment S-meter ( FULL ) adjustment Deviation DTMF ( 1 ) test DTMF ( D ) test Tone 67 Hz test Tone 88.5 Hz test Tone 250.3 Hz test DCS code 255 test Tone burst test Aging ( Not required to use ) Frequency 145 MHz 145 MHz 145 MHz 130 MHz 145 MHz 174 MHz 145 MHz 145 MHz 145 MHz 145 MHz 145 MHz 145 MHz 145 MHz 145 MHz 145 MHz 145 MHz 145 MHz
Reference Frequency Adjustment 1. In the adjustment mode, select channel 1 by rotating the main tuning dial.
2. Press the key to start transmission. 3. Rotate TC1 on the Main board until the value on the frequency counter matches the one displayed on the LCD. 4. On 145.05MHz measure TP1 near the VCO and to obtain 1.2V+0.1V ( If the frequency display is flashing, the PLL is unlocked. )

High Power Adjustment

1. In the adjustment mode, select channel 2 by rotating the main tuning dial. 2. Hold down the key to start transmission. 3. While watching the reading of the TX power meter, set the output power to the value closest to 5 W by rotating the main tuning dial. 4. When the key is released, the output power at that time will be stored as the high power setting.

Low Power Adjustment

1. In the adjustment mode, select channel 3 by rotating the main tuning dial. 2. Hold down the key to start transmission. 3. While watching the reading of the TX power meter, set the output power to the value closest to 0.8 W by rotating the main tuning dial. 4. When the key is released, the output power at that time will be stored as the low power setting.
Minimum Frequency Sensitivity Adjustment See Note on Adjusting the Sensitivity later in this section. 1. In the adjustment mode, select channel 4 by rotating the main tuning dial. 2. Set the minimum frequency sensitivity rotating the main tuning dial, while F
appears after the key is pressed.
Medium Frequency Sensitivity Adjustment See Note on Adjusting the Sensitivity later in this section. 1. In the adjustment mode, select channel 5 by rotating the main tuning dial. 2. Set the medium frequency sensitivity rotating the main tuning dial, while F

Maximum Frequency Sensitivity Adjustment See Note on Adjusting the Sensitivity later in this section. 1. In the adjustment mode, select channel 6 by rotating the main tuning dial. 2. Set the maximum frequency sensitivity rotating the main tuning dial, while F
appears after the key pressed.

S-meter (1) Adjustment

1. In the adjustment mode, select channel 7 by rotating the main tuning dial. The S-meter will show a single circle ( ) 2. Enter 0dBu(EMF) with the transceiver tester (SSG). 3. Press the F key. The transceiver beeps indicating the new setting has been stored successfully.

S-meter (FULL)

1. In the adjustment mode, select channel 8 by rotating the main tuning dial. The S-meter will show all six circles ( 3. Press the )
2. Enter +20dBu (EMF) with the transceiver tester (SSG). key. The transceiver beeps indicating the new setting has been stored successfully.

Deviation

1. In the adjustment mode, select channel 9 by rotating the main tuning dial. 2. Input a 50mVrms, 1KMz signal with your transceiver tester through the external microphone jack. 3. With the tester, put the transceiver in the transmission mode. 4. Rotate the VR1 on the printed-curcuit board of the transceiver until the deviation is set to 4.5KHz.

DTMF (1) Test

This function is only for checking the DTMF code, not adjusting it. 1. In the adjustment mode, select channel 10 by rotating the main tuning dial. 2. Press the key. DTMF code 1 is automatically sent and you will hear the monitoring tone from the speaker. 3. Check the deviation with the transceiver tester.

DTMF (D) Test

1. In the adjustment mode, select channel 11 by rotating the main tuning dial. 2. Press the key. DTMF code D is automatically sent and you will hear the monitoring tone from the speaker. 3. Check the deviation with the transceiver tester.

Tone 67Hz Test

This function is only for checking the tone encoder, not adjusting it. 1. In the adjustment mode, select channel 12 by rotating the main tuning dial. 2. Press the key. A 67Hz tone is automatically sent. 3. Check the deviation with the transceiver tester.

Tone 88.5Hz Test

1. In the adjustment mode, select channel 13 by rotating the main tuning dial. 2. Press the key. An 88.5Hz tone is automatically sent. 3. Check the deviation with the transceiver tester.

Tone 250.3Hz Test

1. In the adjustment mode, select channel 14 by rotating the main tuning dial. 2. Press the key. A 250.3Hz tone is automatically sent. 3. Check the deviation with the transceiver tester.

DCS Code 225 Test

1. In the adjustment mode, select channel 15 by rotating the main tuning dial. 2. Press the key. An 255 DCS code is automatically sent. 3. Check the deviation with the transceiver tester.

Tone Burst Test

This function is only for checking the tone burst, not adjusting it. 1. In the adjustment mode, select channel 16 by rotating the main tuning dial. 2. Press the key. A 1750Hz tone burst is automatically sent. 3. Check the deviation with the transceiver tester.

Perform this aging test only when necessary. 1. In the adjustment mode, select channel 17 by rotating the main tuning dial. The transceiver automatically repeaters transmission for a minute and reception for another minute.
Note on Adjusting Sensitivity Sensitivity is adjusted by applying the optimum voltage from the CPU to the varicap of the tuning circuit. 1. Program any frequency within 145MHz +/- 1MHz on memory channel 5. 2. To enter the adjustment mode, set key lock and input 490217. Decimal point at 100MHz and 10MHz appears in LCD. (To release the mode, set key lock and input 490217). 3. Select channel 5 by rotating the main tuning dial.
4. Press the key and, while the F appears, rotate the main tuning
dial. Set the adjustment data to
** for maximizing the sensitivity (**
appears in the channel number area on the LCD). 5. Press the key. 6. In the key lock mode, Input 490217. Decimal point at 100MHz and 10MHz disappear. Turn the power OFF. The transceiver is in the normal status.

MAIN SIDE A MAIN Side B

SCHEMATIC DIAGRAM

BLOCK DIAGRAM

ALINCO, INC.
Head Office : TWIN 21 MID Tower Building 25F 1-61, 2-Chome, Shiromi, Chuo-ku, Osaka 540-8580 Japan Phone: 06-6946-8150 Fax: 06-6946-8175 Telex: 63086 E-mail: 101243.1446@compuserve.com U.S.A. : 438 Amapola Ave., Suite 130, Torrance, CA 90501-6201, U.S.A. Phone: 310-618-8616 Fax: 310-618-8758 http://www.alinco.com/ Germany : Eschborner Landstrasse 55, 60489 Frankfurt am Main, Germany Phone: 069-786018 Fax: 069-789-60766

Dealer/Distributor

Copyright 1999 Alinco, lnc. Osaka Japan Printed in Japan PM0058

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