HYT TR-800 User manual

04-29-2009
W03441/T04574
2009
4
5-Tone Model
8130080000030
TR-800 LOGIC & DISP BOARD
P/N:410R8001000G0
TR-800 POWER MANAGEMENT
P/N:410R800200120

TR-800 Service Manual
0
Contents
Revision History .......................................................................................................................................1
Introduction...............................................................................................................................................1
Safety Information ....................................................................................................................................1
Repeater Overview...................................................................................................................................3
Software Specification ..............................................................................................................................6
Programming Guide ...............................................................................................................................10
Circuit Description ..................................................................................................................................37
MPU and ACC. Connector Pins..............................................................................................................43
TR-800 Parts List 1 (Logic Board) ..........................................................................................................45
TR-800 Parts List 1 (Power Management Board)...................................................................................52
Adjustment Description...........................................................................................................................55
Duplexer Instructions..............................................................................................................................63
Battery Revert ........................................................................................................................................65
Troubleshooting......................................................................................................................................69
Disassembly and Assembly for Repair ...................................................................................................72
Exploded View........................................................................................................................................76
Parts List 2 .............................................................................................................................................77
Packing...................................................................................................................................................79
TR-800 Wiring Diagram..........................................................................................................................80
TR-800 PCB View Top Layer (Logic Board) ...........................................................................................81
TR-800 PCB View Bottom Layer (Logic Board)......................................................................................82
TR-800 PCB View Top Layer (Power Management Board)....................................................................83
TR-800 PCB View Bottom Layer (Power Management Board) ..............................................................84
TR-800 Schematic Diagram (Logic Board).............................................................................................85
TR-800 Schematic Diagram (Power Management Board) .....................................................................86
Specifications .........................................................................................................................................87

TR-800 Service Manual
1
Revision History
Part No. Date of Issue Changes
8130080000000 June, 2007 Initial Release
8130080000010 April, 2008 1. ”Programming Guide” is updated;
2. “TR-800 Parts List 1” is updated.
8130080000030 April, 2009 The following sections are updated:
1. Programming Guide
2. TR-800 Parts List 1 (Logic Board)
3. MPU and ACC. Connector Pins
4. Adjustment Description
5. Parts List 2
6.TR-800 PCB View & Schematic Diagram
Introduction
Manual Scope
This manual is intended for use by experienced technicians who have a good knowledge of such
communication equipment. It contains all service information required for the equipment. Please read it
carefully before any service operation.
Safety Information
The following safety precautions shall always be observed during operation, service and maintenance of
this equipment.
This equipment shall be serviced by qualified technicians only.
Do not modify the repeater for any reason.
To avoid electromagnetic interference and/or compatibility conflicts, do not operate your
repeater when you are near 380V AC mains or above.
For vehicles with an air bag, do not place a repeater in the area over an air bag or in the air bag
deployment area.
Turn off your repeater before entering a blasting area.
Turn off your repeater prior to entering any area with explosive and flammable materials.
Do not charge your back-up battery in a location with explosive and flammable materials.

TR-800 Service Manual
2
Do not expose the repeater to direct sunlight over a long time, nor place it close to heating
source.
Do not place the repeater in excessively dusty, humid areas or on unstable surfaces.
Connect a lightning arrester for the antenna which is installed outdoors. The chassis or the
equipment housing must be grounded to minimize any possible shock hazard from lightning
strike.
Please make sure there is no stress on the antenna joint during transportation or installation.
Caution: This equipment generates during use radio frequency Energy, so be
and, if sure to follow all operation instructions in Owner’s Manual to prevent
potential interference to radio communications.

TR-800 Service Manual
3
Repeater Overview
1. Speaker ①
2. LED Indicators
No. LED Indicator
②Red
③Green
④Dark Red
⑤Orange
⑧Blue
Status LED Indicator
Master Red
Tx Slave Green
Master Flash red.
Rx Slave Flash green.
DC power supply works due to AC
mains failure;.
Dark red
AC power supplies. Dark red LED goes out.
Repeater Setup Mode Orange
Knockdown Mode Orange LED goes out.
RPT/OPT Enable Blue
RPT/OPT Disable Blue LED goes out.

TR-800 Service Manual
4
3. Repeater Setup/Knockdown Switch ⑥
A momentary machinery button switch. In setup mode, the master radio is on; in knockdown mode,
the master radio is off.
4. LCD Display ⑦
Display current channel number, frequency, power level, Rx status, etc.
5. Power Switch/Volume Control Knob ⑨
The Power Switch locates in the center of the knob. Short press the switch to turn on the
repeater; long press it for 1 second to turn off the repeater. Rotate the Volume Control knob
clockwise or counter-clockwise to adjust the volume to a desired level.
6. Microphone Hook ⑩
7. RPT Button /OPT Button
Press the RPT button to enable the forward directional repeater function, and press the OPT button
to enable the reverse directional repeater function.
8. Scan Button /Moni Button
Press the Scan button to initiate repeater scan, which can only be activated in forward directional
repeater mode ( i.e., RPT is active while OPT is inactive).
Short press the Moni button to display Rx frequency of slave radio, Tx frequency of slave radio, Rx
frequency of master radio, Tx frequency of master radio by turn; long press it to monitor activities on
the current channel. The master radio processes monitoring while OPT is active, and the slave radio
processes monitoring while OPT is inactive.
9. Up Button /Dn (Down) Button
Press the Up or Dn button to select a desired channel.
10. RJ45 Connector
Plug the desktop microphone or palm microphone into this port to input audio, or plug the
programming cable into this port to program both radios.
11. Antenna Connector
The N connector is for connecting with the master radio’s antenna, while the BNC connector
is for the slave radio’s antenna.
When using a duplexer, choose the correct adaptor on the back of TR-800 according to your
antenna connector type.
12. Fan
The fan will change its speed automatically as the environment/housing temperature changes.
13. AC Power Inlet (with Switch )
14. Accessory Connector (DB15/F)
To be used by external control equipment or link equipment.

TR-800 Service Manual
5
15. Grounding Terminal
To avoid lightning strike, ground this terminal via a thick copper wire, or use a lightning arrester if
necessary.
16. DC Power Inlet
Once the AC mains fails, the equipment will automatically switch to operate with the backup battery if
the battery is connected to the port. This DC port also provides floating charge function with
approximate 400mA current.
17. DC Fuse
The 15A/32Vdc fuse protects the circuit from being damage caused by polarity reversal of battery.

TR-800 Service Manual
6
Software Specification
Basic Operation
Short press the Power Switch/Volume Control knob to power on the repeater; rotate the Volume
Control knob clockwise to adjust the volume to a comfortable level. Press the Up or Dn button to select
a desired channel. Then the repeater will operate as you set.
To achieve basic repeater functions, the radio must be in setup mode and operate in forward, reverse or
bi-directional repeater mode.
Repeater Hang Time
When the repeater stops receiving due to signal disappearance, the transmitter will keep transmitting for
a programmed time period. In this way, repeated startup of the repeater link is prevented when the PTT
key is frequently pressed. The Repeater Hang Time can only be activated in forward directional repeater
mode.
Display Frequency
Short press the Moni button to display Rx frequency of slave radio, Tx frequency of slave radio, Rx
frequency of master radio, Tx frequency of master radio by turn.
Monitor
If the Monitor function is programmed by your dealer, long press (more than 1.2s) the Moni button to
listen in activities on the current channel. The Monitor function is disabled in bi-directional repeater mode.
Two operation modes listed below are provided for you to choose via the programming software.
Note: In knockdown state, the Monitor function is disabled.
A. Signaling Off-Momentary
Hold down the Moni button to open the CTCSS/CDCSS, DTMF/2-Tone/5-Tone signaling squelch;
release it to close the signaling squelch.
B. Carrier Squelch -Momentary
Hold down the Moni button to open the squelch; release it to close the squelch.
Scan
The Scan function can only be activated in forward directional repeater mode. Press the Scan button to
initiate repeater scan (if scan parameter is applicable). The Scan Gap Time and Dropout Delay Time are
configurable via the programming software.
Note: The AUX4/5 MUST be programmed to Rx Carrier/Rx Tone/Decode Output Control to allow the
repeater to land on an active channel when an eligible call is received.

TR-800 Service Manual
7
CTCSS/CDCSS
Set up talkgroups/users with unique CTCSS/CDCSS to prevent unwanted conversations on the same
frequency. If CTCSS/CDCSS is set on the current channel, a CTCSS/CDCSS matching will be required
on an incoming call. If not set, the radio unmutes to all calls within the communication range on the
current channel. Your dealer may preset CTCSS/CDCSS on certain channels.
Note: This feature does not mean that your conversation will not be heard by others.
Time-out Timer (TOT)
The feature allows more efficient use of channels by limiting the maximum time of each transmission. It
protects the radio from damage caused by long time transmission. Once a continuous transmission
exceeds the preset time (15 to1200s programmable), the transmission will be automatically terminated
and an alert tone will be heard. The alert tone ceases upon the release of the PTT key.
Selectable Squelch Level (SQL)
Squelch levels are selectable (0 to 9) via the programming software.
Voice Compandor/Scrambler
The Voice Compandor/Scrambler feature may be enabled and disabled via the programming software.
The Emphasis/De-emphasis function needs to be disabled while the Scrambler feature is enabled, and
enabled while the Scrambler feature is disabled.
High/Medium/Low Power Programmable
High/Medium/Low power is selectable via the programming software.
Programmable Channel Spacing
Wide/narrow channel spacing is selectable via the programming software.
Repeater Modes
Knockdown Mode
Setup Mode
Base Station
Forward Directional
Repeater
Reverse Directional
Repeater
Bi-directional Repeater
PC Programming Mode

TR-800 Service Manual
8
Mode Description
Mode Description
Knockdown Mode Press the SETUP button while the repeater is powered on. The repeater
enters knockdown mode once the orange LED goes out.
Base Station
Press RPT and OPT buttons when the orange SETUP LED is on. The
repeater enters base station mode once both the blue RPT and OPT
LEDs go out.
Forward
Directional
Repeater
Press RPT and OPT buttons when orange SETUP LED is on. The
repeater enters forward directional mode once the blue RPT LED is on
while the blue OPT LED goes out.
Reverse
Directional
Repeater
Press RPT and OPT buttons when the orange SETUP LED is on. The
repeater enters reverse directional mode once the blue RPT LED goes
out while the blue OPT LED is on.
Setup
Mode
Bi-directional
Repeater
Press RPT and OPT buttons when the orange SETUP LED is on. The
repeater enters bi-directional repeater mode once both the blue RPT and
OPT LEDs are on.
PC Programming Mode The repeater enters PC programming mode once command is received
from PC and when the orange SETUP LED is on.
Repeater Setup/Knockdown
Press the SETUP button located on the front panel to toggle between repeater setup and knockdown,
with LED indications. The master radio is on in setup mode, and off in knockdown mode. There are 4
repeater modes in setup mode: base station, forward directional repeater, reverse directional repeater
and bi-directional. The repeater is initialized to base station mode when it toggles from knockdown to
setup state. But in knockdown mode, the repeater works merely as a receiver.
In base station mode, the repeater function is disabled, with the slave radio used as a receiver and the
master radio used as a transmitter. In bi-directional repeater mode, the front panel PTT is disabled.
The repeater setup/knockdown mode will be recorded when the repeater is restarted. For example, if the
repeater operates in forward directional mode, it will still operate in this mode after re-started.
PC Programming Mode
Connect the PC to the repeater via a programming cable. Data can be transferred from the PC to the
repeater and saved in the repeater memory. The repeater LCD will display “PROGRAMMING” when the
PC is reading/writing data from/into the radio. The LED flashes red, indicating the master radio is being
programmed; then the LED flashes green, indicating the slave radio is being programmed. The repeater
will be automatically reset after programming.