FUJIAN NEW CENTURY COMMUNICATIONS TD-790 Two Way Radio User Manual User s Manual Add Information
QUANZHOU CITY NEW CENTURY COMMUNICATION ELECTRONICS CO.,LTD. Two Way Radio User s Manual Add Information
Users Manual
This device complies with Part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must except any interference received, including interference that may cause undesired
operation.
SAFETY TRAINING INFORMATION
Your SYD, KYD radio generates RF electromagnetic en-ergy during
transmit mode. This radio is designed for and classified as
“Occupational Use Only”, meaning it must be used only during the
course of employment by individuals aware of the hazards,
Warning and the ways to minimize such hazards. This radio is
not intended for use by the “General Population” in an
uncontrolled environment.
This radio has been tested and complies with the FCC RF exposure limits for
“Occupational Use Only.” In addition, your SYD, KYD radio complies with the following
Standards and Guidelines with regard to RF energy and electromagnetic energy levels
and evaluation of such levels for exposure to humans:
• FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC
Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields.
• American National Standards Institute (C95.1–1992), IEEE Standard for Safety Levels
with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to
300 GHz.
• American National Standards Institute (C95.3–1992), IEEE Recommended Practice for
the Measurement of Potential y Hazardous Electromagnetic Fields— RF and Microwave.
To ensure that your exposure to RF electromagnetic energy is
within the FCC allowable limits for occupational use, always adhere
to the following
CAUTION guidelines:
• DO NOT operate the radio without a proper antenna attached, as
this may damage the radio and may also cause you to exceed FCC
RF exposure limits. A proper antenna is the antenna supplied with
this radio by the manufacturer or an antenna specifically authorized by the manufacturer
for use with this radio.
• DO NOT transmit for more than 50% of total radio use time (“50% duty cycle”).
Transmitting more than 50% of the time can cause FCC RF exposure compliance
requirements to be exceeded. The radio is transmitting when the “TX indicator” lights red.
You can cause the radio to transmit by pressing the “PTT” switch.
• ALWAYS use SYD, KYD authorized accessories (antennas, batteries, belt clips,
speaker/mics, etc). Use of unauthorized accessories can cause the FCC RF exposure
compliance requirements to be exceeded. Body-worn operations are restricted to
belt-clips, holsters or similar accessories that have no metallic component in the assembly
and that provide at least 1.5 cm separation between the device, including its antenna, and
the user's body. To provide the recipients of your transmission the best sound quality, hold
the antenna at least 5 cm (2 inches) from mouth, and slightly off to one side. The
information listed above provides the user with the information needed to make him or her
aware of RF exposure, and what to do to assure that this radio operates within the FCC
RF exposure limits of this radio.
Electromagnetic Interference/Compatibility
During transmissions, your SYD, KYD radio generates RF energy that can possibly cause
interference with other devices or systems. To avoid such interference, turn off the radio in
areas where signs are posted to do so. DO NOT operate the transmitter in areas that are
sensitive to electromagnetic radiation such as hospitals, aircraft, and blasting sites.
FOREWORD
Thank you for purchasing the TD-790 transceiver.
READ ALL INSTRUCTIONS carefully and completely before using the transceiver.
SAVE THIS INSTRUCTION MANUAL–This instruction manual contains important
operating instructions for the transceiver.
INSTALLATION NOTES
• Body-worn operations are restricted to belt-clips, holsters or similar accessories that
have no metallic component in the assembly and that provide at least 1.5 cm separation
between the device, including its antenna, and the user's body
• If you wear a portable two-way radio on your body, ensure that the antenna is at least 2.5
centimeters (1 in.) from your body when transmitting.
IMPORTANT
RF CAUTION! NEVER hold the transceiver so that the antenna is very close to, or
touching exposed parts of the body, especially the face or eyes, while transmitting. The
transceiver will perform best if the microphone is 2 to 4 in. (5 to 10 cm) away from the lips
and the transceiver is vertical.
RF CAUTION! NEVER operate the transceiver with a headset or other audio accessories
at high volume levels.
RF CAUTION! NEVER short the terminals of the battery pack.
DO NOT push the PTT when not actually desiring to transmit.
AVOID using or placing the transceiver in direct sunlight or in areas with temperatures
below +14°F (–10°C) or above +122°F (+50°C). The basic operations, transmission and
reception of the transceiver, are guaranteed within the specified operating temperature
range (depending on version). However, the LCD display may not be operate correctly, or
show an indication in the case of long hours of operation, or after being placed in
extremely cold areas.
DO NOT modify the transceiver for any reason.
KEEP the transceiver from the heavy rain, and never immerse it in the water. The
transceiver construction is water resistant, not waterproof.
The use of non SYD, KYD battery packs/chargers may impair transceiver performance
and invalidate the warranty.
PORTABLE FM TRANSIVER
SYD
1
TD-790
TECHNICAL ᡔᴃݠ
GENERAL/ὖ䗄
INTRODUCTION
SCOPE OF THIS MANUAL
familiar with similar types of commercial grade communications
equipment. It contains all required service information for the
equipment and is current as of the publication date.Changes
Bulletins or Manual Revisions. These are issued as required.
ORDERING REPLACEMENT PARTS
When ordering replacement parts or equipment information,
applies to all parts: components, kits, or chassis. If the part
component for proper identification.
PERSONAL SAFETY
The following precautions are recommended for personal safety:
DO NOT transmit until all RF connectors are verified secure
and any open connectors are properly terminated.
blasting caps or in an explosive
This equipment should be serviced by a qualified technician
only.
SERVICE
This radio is designed for easy servicing. Refer to the schematic
diagrams, printed circuit board views, and alignment procedures
contained within.
5W
5W
ᓩ㿔
ᴀݠⱘ㣗ೈ
ᴀݠᰃᦤկ㒭❳ᙝ䗮ֵϧϮᑊϨ᳝㓈ׂ㒣偠ⱘᡔᴃҎਬ
Փ⫼ⱘDŽ
᳓ᤶ䳊ӊⱘ䅶䌁
ᔧ䅶䌁᳓ᤶ䳊ӊ䆒ֵᙃᯊˈᑨ⊼ᯢᅠᭈⱘ䳊ӊ䆚߿োⷕDŽ
᠔᳝ⱘ䳊ӊഛ᳝䆚߿োⷕ˖ܗӊǃ㒘ӊᴎDŽབᵰϡⶹ䘧
䳊ӊⱘোⷕˈЎњℷ⹂ഄ䆚߿ˈᖙ乏⊼ᯢℸܗӊ᠔ሲⱘᴎ
㒘ӊⱘোⷕˈᑊᇍܗӊ䖯㸠ܙߚⱘ䇈ᯢDŽ
ϾҎᅝܼ
ЎњϾҎⱘᅝܼˈ䇋⊼ᛣϟ߫џ乍˖
≵᳝䅸ⳳḌᅲ᠔᳝ᇘ乥ᦦ༈П᳝ࠡӏԩϔϾᠧᓔⱘᦦ༈
≵᳝䖲ࠄડᑨッᄤϞⱘᚙމϟˈഛϡ㽕থᇘDŽ
⬉⟚ㅵ䰘䖥ᯧ➗ᗻ⇨ԧ⦃๗Ёˈᖙ乏݇ᥝ⬉⑤ˈϡ㽕
᪡ᴀ䆒
ᴀ䆒াᑨ䆹⬅᳝䌘ḐⱘᡔᴃҎਬᴹ㓈ׂDŽ
㓈ׂ᳡ࡵ
Ўњ֓Ѣ㓈ׂᴀ䆒ˈᓎゟњᅠᭈⱘ㓈ׂ᳡ࡵԧ㋏ˈᦤկњ
ࣙᣀॳ⧚ǃॄࠋ㒓䏃䇗ᭈℹ偸ݙⱘ䌘᭭կখ㗗DŽ
ֵ䘧᭄䞣
ᇘ乥䕧ߎࡳ⥛
RF Power Output
Number of channels
This manual is intended for use by experienced technicians
which may occur after publication are covered by either Service
ᅗࣙᣀњ㓈ׂ䆹䆒᠔䳔㽕ⱘܼ䚼䌘᭭⦄㸠݀Ꮧ
ৢৃ㛑থ⫳বࡼˈབᵰ䳔㽕ˈৃҹՓ⫼lj㓈ׂ
the full part identification number should be included.This
number is not known, include the chassis or kit number of
SHUT OFF and DO NOT operate this equipment near electrical
which it is a part, and a sufficient description of the required
ⱘ᭄DŽߎ⠜
䗮NJljݠׂ䅶ᴀNJ
䖯㸠㸹ܙDŽ
199 199
REALIGNMENT
GETTING ACQUAINTED
.
/ᓣ㒘ড়
/䚼ߚҟ㒡
3
4
MODES
USER MODE PC MODE
ᓣ
⫼᠋ᓣ PCᓣ
MODES
User mode
PC mode
PC mode
Power ON
PROCEDURE
Used for communication between the radio
and a PC
How to enter each mode
MODES
PC MODE
Preface
The TD-790 transceiver can be programmed using a personal
The programming software can be used on an IBM
Caution:
When removing or installing the programming cable,
first
switch off the radio power.
Additionally, be sure to disable the VOX function, if
it’s enabled, as it can sometimes activate from connection
noise.
Connection procedure
1. Connect the TD-790 to the personal Computer using the
interface cable.
2. When the POWER is switched ON, you can enter user mode.
Programming software description
The software allows a user to program the TD-790 radios via
the
Programming with IBM PC
If data is transferred to the transceiver from a PC with the software,
the destination data (basic radio information) for each set can be
modified.
For normal use.
FUNCTION
⫼᠋ᓣ
䅵ㅫᴎᓣ Used for communication between the radio
and a PC
⫼Ѣ᱂䗮᪡
ࡳ㛑
ᓣ㉏ൟ
User mode
Receiver commands from PC
ᓣ㉏ൟ ᪡ℹ偸
⫼᠋ᓣ
䅵ㅫᴎᓣ
ᠧᓔ⬉⑤ᓔ݇
Ң䅵ㅫᴎᬊੑҸ
software.
PC or compatible. Fig-1 shows the setup of a PC for programming.
programming interface cable.
䅵ㅫᴎᓣ
ࠡ㿔
䗮䖛ϾҎ⬉㛥ˈՓ⫼㓪⬉㓚㓪䕃ӊˈᇍᇍ䆆ᴎ7'
䖯㸠㓪䆒㕂DŽ㸼⼎ϔৄ,%0䅵ㅫᴎⱘ㓪䆒㕂䖛DŽ
⊼ᛣ
ᔧᢨ䰸㗙ᦦܹ㓪⬉㓚佪ܜ݇䯁ᇍ䆆ᴎ⬉⑤DŽˈ⹂ֱໄ
ࡳ㛑Ꮖ݇䯁ˈབᵰໄ㹿▔⌏ˈৃ㛑᳝ᯊӮᓔਃ䖲ా䷇DŽ
䖲ℹ偸
Փ⫼ষ⬉㓚ᇚ7'ϢϾҎ⬉㛥䖲DŽ
ᔧ⬉⑤ᓔ݇ᠧᓔˈৃҹ䖯ܹ⫼᠋ᓣDŽ
㓪䕃ӊ䇈ᯢ
䆹䕃ӊܕ䆌⫼᠋㒣⬅㓪ষ⬉㓚ᇍ7'䖯㸠㓪䆒ᅮDŽ
Փ⫼,%0䅵ㅫᴎ㓪
བᵰҢՓ⫼䕃ӊⱘ,%0䅵ㅫᴎᇚ᭄থ䗕ࠄᣕᴎˈ䆒ᅮⱘⳂⱘ
᭄˄ᴀ䗮ֵখ᭄˅ഛৃ㹿ׂᬍDŽ
computer, A programming interface cable and programming
5
DISASSEMBLY FOR REPAIR/㓈ׂᯊᢚौ䚼ߚ
Separating the case assembly from the chassis
1. Remove the knob 1 and two round nuts 2
2. Remove the two screws 3.
3. Expand the right and left sides of the bottom
it from the case assembly 4.
4. Taking care not to cut the speaker lead 5,
Remove the five screws 6 and drop-out line,
of the case assembly, lift the chassis,and
open
and lift
ҢᑩᑻϞߚ⾏
পϟᮟᡁ1ϸϾ⦃ᔶ㶎↡
পϟϸ乫㶎䩝
ᥔᓔᑩ䚼ⱘᎺেϸջˈপϟᑩᑻˈᑊЁপߎ
2
3
4
ᇣᖗϡ㽕ᡬᮁᡀໄ఼ᓩ㒓
5ˈᢚϟᑩᑻDŽ
ᑩᑻҢЏᵓϞߚ⾏
✊ৢপϟЏᵓ
ˈ
6
remove
the chassis and case assembly.
the first unit off.
6
পϟ乫㶎䩝
Separating the chassis from the unit
Remove the six screws 7.
Remove the solder from the antenna terminal using a
unit off 8.
Note: When reassembling the unit in the chassis, be
Removing the lever
Raise the lever on the lower case 9, insert a small flat
screwdriver into the space between
open the case carefully 10 and lift the lever off.
Note.: Do not force to separate the case from the lever.
soldering iron them lift the second
to solder the antenna terminal.
sure
the case
পϟ乫㶎䩝
7
⫼⬉⚭䪕ᇚ㒓ッ⚍⛞ᓔˈ✊ৢপϟѠഫЏᵓDŽ
8
⊼ᛣ˖ᔧ䞡ᮄᇚЏᵓᅝ㺙ࠄᑩᑻϞᯊˈ⹂ֱᇚ㒓
ッ⚍⛞དDŽ
পϟ།ᡁ
ᦤ䍋ϟ䚼
Ϟⱘ䫕ᠷˈ䫕ᠷП䯈ᦦܹ
ϔϾᇣൟᑇ༈ᬍ䫹ˈᇣᖗഄᠧᓔᑊौϟ䫕ᠷDŽ
⊼ᛣ˖ϡ㽕⫼ᢚौ䫕ᠷDŽ
9
and lever,
7