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Alinco DJ-195 Service Manual

Alinco DJ-195
34 pages
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DJ-195
Service Manual
CONTENTS
SPECIFICATIONS
1) GENERAL ................................................................ 2
2) TRANSMITTER ........................................................ 2
3) RECEIVER ............................................................... 2
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
SEMICONDUCTOR DATA
1) NMJ2070M T1 (XA210) ............................................ 9
2) AT24C16N-10SI-2.7TER (XA0368) .......................... 9
3) M5222FP-600C (XA0385) ...................................... 10
4) TK14521MTL (XA0515).......................................... 11
5) M64082AGP (XA0543)........................................... 12
6) NJM2904V-TE1 (XA0573) ...................................... 12
7) NJM2902V-TE1 (XA0596) ...................................... 12
8) S-81250SG-QD-T1 (XA0619)................................. 13
9) S-80845ALMP-EA9-T2 (XA0620) ........................... 13
10) Transistor, Diode, and LED Ontline Drawings ......... 14
11) LCD Connection (EL0044) .................................... 14
EXPLODED VIEW
1) Front View ............................................................... 15
2) Rear View ............................................................... 16
PARTS LIST
MAIN Unit ......................................................... 17~19
Mechanical Parts .................................................... 20
Packing Parts ......................................................... 20
ADJUSTMENT
1) Required Test Equipment.................................. 21, 22
2) Adjustment Mode ............................................. 23~26
PC BOARD VIEW
MAIN Unit ............................................................... 27
SCHEMATIC DIAGRAM ............................................ 28
BLOCK DIAGRAM ..................................................... 29
ALINCO,INC.
www.ALIMCO.ru

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Alinco DJ-195 Specifications

General IconGeneral
ModulationFM
Antenna ConnectorBNC
TypeHandheld
Frequency Range136-174 MHz
Output Power5W
Channel Steps5kHz / 10kHz / 12.5kHz / 25 kHz
BatteryLi-ion Battery

Summary

SPECIFICATIONS

GENERAL

Details frequency coverage, mode, channel steps, memory, antenna, stability, power, current, temperature, dimensions, weight, DTMF, CTCSS, DCS.

TRANSMITTER

Output power, modulation system, spurious emissions, and max frequency deviation.

RECEIVER

Receive system, intermediate frequencies, sensitivity, selectivity, and audio output power.

CIRCUIT DESCRIPTION

Receiver System

Describes the double superheterodyne receiver system, including front end, IF circuit, demodulator, and audio circuit.

Transmitter System

Covers modulator circuit, power amplifier circuit, and APC circuit functions.

PLL Synthesizer Circuit

Details the PLL system, including its main components like VCO, reference frequency, and phase comparator.

CPU and Peripheral Circuits

Explains CPU functions like LCD display, lamp, reset, S-meter, DTMF, CTCSS, and DCS encoding.

M3826M8L***GP (XA0644) CPU

Terminal Connection (TOP VIEW)

Shows the pinout and connections for the M3826M8L CPU.

SEMICONDUCTOR DATA

NMJ2070M T1 (XA210) Low Voltage Power Amplifier

Provides electrical characteristics and equivalent circuit for the NMJ2070M power amplifier.

AT24C16N-10SI-2.7TER (XA0368) 16K bits CMOS Serial EEPROM

Details the pinout and function for the AT24C16N serial EEPROM.

M5222FP-600C (XA0385) Electronic Volume

Shows the internal circuit diagram for the M5222FP electronic volume control IC.

TK14521MTL (XA0515) IF System

Presents the block diagram and electrical characteristics for the TK14521MTL IF system IC.

M64082AGP (XA0543)

Displays pinout information for the M64082AGP IC.

NJM2904V-TE1 (XA0573) Dual Single Supply Operational Amplifier

Shows the internal circuit and pinout for the NJM2904V dual op-amp.

NJM2902V-TE1 (XA0596) Quad Single Supply Operational Amplifier

Displays the internal circuit and pinout for the NJM2902V quad op-amp.

S-81250SG-QD-T1 (XA0619)

Provides the top view and circuit diagram for the S-81250SG voltage regulator.

S-80845ALMP-EA9-T2 (XA0620) Voltage Regulator

Shows the top view and circuit diagram for the S-80845ALMP voltage regulator.

Transistor, Diode, and LED Outline Drawings

Displays outline drawings and identification markings for various transistors, diodes, and LEDs.

LCD Connection (EL0044)

Illustrates the pin connections for the LCD module.

EXPLODED VIEW

Front View

Shows an exploded view of the front components of the transceiver.

Rear View

Displays an exploded view of the rear components and internal layout.

PARTS LIST

Main Unit

Lists electronic components and their part numbers for the main unit.

Mechanical Parts

Lists mechanical components like screws, nuts, and rubber parts.

Packing Parts

Lists packaging materials such as antennas, labels, and manuals.

ADJUSTMENT

Required Test Equipment

Lists the necessary test equipment for adjusting the radio's parameters.

Linear detector

Details measurement conditions for linear detection, including modulation and sensitivity.

Adjustment Mode

Explains how to enter adjustment mode and lists channel frequencies for adjustments.

Note on Adjusting Sensitivity

Provides specific instructions for adjusting radio sensitivity using the CPU and tuning circuit.

PC BOARD VIEW

MAIN SIDE A

Shows the component layout on the main PCB, side A.

MAIN Side B

Displays the component layout on the main PCB, side B.

SCHEMATIC DIAGRAM

BLOCK DIAGRAM

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