Kenwood Tk 860h Manual
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© 2000-1 PRINTED IN JAPAN B51-8498-10 ( N) 1268 UHF FM TRANSCEIVER TK-860G/862G SERVICE MANUAL REVISED Microphone (T91-0597-15) Cabinet (Upper) (A01-2165-13) Panel assy (A62-0642-03) Key top (K29-5343-02) Microphone (T91-0597-15) Cabinet (Upper) (A01-2165-13) Panel assy (A62-0731-03) Key top (K29-5344-02) TK-860G (K) TK-862G (K) Please use this manual in place of the service manual (preliminary version), B51-8498-00. We have added the information on the circuit description, specifications, and K3 version specifications to the service manual (preliminary version), B51-8498-00.
2 TK-860G/862G CONTENTS / GENERAL GENERAL INTRODUCTION SCOPE OF THIS MANUAL This manual is intended for use by experienced techni- cians familiar with similar types of commercial grade com- munications equipment. It contains all required service in- formation for the equipment and is current as of the publica- tion data. Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions. These are issued as required. ORDERING REPLACEMENT PARTS When ordering replacement parts or equipment informa- tion, the full part identification number should be included. This applies to all parts : components, kits, or chassis. If the part number is not known, include the chassis or kit number of which it is a part, and a sufficient description of the re- quired component for proper identification. PERSONNEL SAFETY The following precautions are recommended for person- nel safety : • DO NOT transmit if someone is within two feet (0.6 meter) of the antenna. • DO NOT transmit until all RF connectors are verified se- cure and any open connectors are properly terminated. • SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere. • All equipment should be properly grounded before power-up for safe operation. • This equipment should be serviced by a qualified techni- cian only. PRE-INSTALLATION CONSIDERNATIONS 1. UNPACKING Unpack the radio from its shipping container and check for accessory items. If any item is missing, please contact KENWOOD immediately. 2. LICENSING REQUIREMENTS Federal regulations require a station license for each ra- dio installation (mobile or base) be obtained by the equip- ment owner. The licensee is responsible for ensuring trans- mitter power, frequency, and deviation are within the limits permitted by the station license. Transmitter adjustments may be performed only by a li- censed technician holding an FCC first, second or general class commercial radiotelephone operator’s license. There is no license required to install or operate the radio. CONTENTS GENERAL ................................................................. 2 SYSTEM SET-UP ..................................................... 4 OPERATING FEATURES ......................................... 5 REALIGNMENT ...................................................... 10 INSTALLATION ...................................................... 20 CIRCUIT DESCRIPTION ......................................... 24 SEMICONDUCTOR DATA ..................................... 29 DESCRIPTION OF COMPONENTS ....................... 31 PARTS LIST ............................................................ 33 EXPLODED VIEW .................................................. 42 PACKING ................................................................ 44 ADJUSTMENT ....................................................... 45 PC BOARD VIEWS DISPLAY UNIT (X54-3270-10) : TK-860G ........ 54 DISPLAY UNIT (X54-3280-10) : TK-862G ........ 55 PLL/VCO (X58-4670-XX) .................................. 56 TX-RX UNIT (X57-5960-XX) (A/2) ................... 57 TX-RX UNIT (X57-5960-XX) (B/2) .................... 63 SCHEMATIC DIAGRAM ........................................ 67 BLOCK DIAGRAM .................................................. 75 LEVEL DIAGRAM ................................................... 78 TERMINAL FUNCTION ......................................... 80 SPECIFICATIONS ................................................... 81
3 TK-860G/862G 1 3 + – 7 6 13 15 5. INSTALLATION PLANNING – CONTROL STATIONS 5-1. Antenna system Control station. The antenna system selection depends on many factors and is beyond the scope of this manual. Your KENWOOD dealer can help you select an antenna sys- tem that will best serve your particular needs. 5-2. Radio location Select a convenient location for your control station radio which is as close as practical to the antenna cable entry point. Secondly, use your system’s power supply (which supplies the voltage and current required for your system). Make sure sufficient air can flow around the radio and power supply to allow adequate cooling. SERVICE This radio is designed for easy servicing. Refer to the schematic diagrams, printed circuit board views, and align- ment procedures contained in this manual. Note When you modify your radio as described in system set- up, take the following precaution. The rating of pin 7 (SB) of the accessory connector cable (KCT-19) on the rear of the radio is 13.6V (1A). Insert a 1A fuse if you use the SB pin for external equipment. Accessory connector cable (KCT-19) If you do not intend to use the 3.5-mm jack for the exter- nal speaker, fit the supplied speaker-jack cap (B09-0235-05) to stop dust and sand getting in. Speaker-jack cap (B09-0235-05) 3. PRE-INSTALLATION CHECKOUT 3-1. Introduction Each radio is adjusted and tested before shipment. How- ever, it is recommended that receiver and transmitter opera- tion be checked for proper operation before installation. 3-2. Testing The radio should be tested complete with all cabling and accessories as they will be connected in the final installa- tion. Transmitter frequency, deviation, and power output should be checked, as should receiver sensitivity, squelch operation, and audio output. QT equipment operation should be verified. 4. PLANNING THE INSTALLATION 4-1. General Inspect the vehicle and determine how and where the radio antenna and accessories will be mounted. Plan cable runs for protection against pinching or crush- ing wiring, and radio installation to prevent overheating. 4-2. Antenna The favored location for an antenna is in the center of a large, flat conductive area, usually at the roof center. The trunk lid is preferred, bond the trunk lid and vehicle chassis using ground straps to ensure the lid is at chassis ground. 4-3. Radio The universal mount bracket allows the radio to be mounted in a variety of ways. Be sure the mounting surface is adequate to support the radio’s weight. Allow sufficient space around the radio for air cooling. Position the radio close enough to the vehicle operator to permit easy access to the controls when driving. 4-4. DC Power and wiring 1. This radio may be installed in negative ground electrical systems only. Reverse polarity will cause the cable fuse to blow. Check the vehicle ground polarity before installa- tion to prevent wasted time and effort. 2. Connect the positive power lead directly to the vehicle battery positive terminal. Connecting the Positive lead to any other positive voltage source in the vehicle is not rec- ommended. CAUTION If DC power is to be controlled by the vehicle ignition switch, a switching relay should be used to switch the posi- tive power lead. The vehicle ignition switch then controls DC to the relay coil. 3. Connect the ground lead directly to the battery negative terminal. 4. The cable provided with the radio is sufficient to handle the maximum radio current demand. If the cable must be extended, be sure the additional wire is sufficient for the current to be carried and length of the added lead. GENERAL
4 TK-860G/862G SYSTEM SET-UP Merchandise received License and frequency allocated by FCC Choose the type of transceiver Are you using the public address? Are you using the external speaker? Are you using ignition sense cable? Delivery Are you using the KGP-1A Modem GPS receiver or the KGP-1B Modem GPS controller? Transceiver programming (Option) 8ch models TK-862G 128ch models TK-860GFrequency range (MHz) 450~490 400~430RF power 25W 25WType K,M K3 KAP-1 PA/HA unit KCT-20 Connection cable KES-3 External speaker KCT-19 Accessory connector cableKCT-18 Ignition sense cable Frequency range (MHz) 450~490RF power 25WType K See page 11. A personal computer (IBM PC or compatible), programming interface (KPG-22), and programming software (KPG-56D) are required for programming. (The frequency and signalling (option) data are programmed for the transceiver.) (Option) (Option) (Option) (Option) (Option)See page 22. Installation the TX-RX unit when used KAP-1. YES YES YES YES NO NO NO NOSee page 21. See page 20. See page 23.See the KCT-20 instruction manual (B62-0733-11). * : You can install either KCT-19 or KCT-20 to the TK-860G/862G transceiver * *
5 TK-860G/862G 1. Controls and Functions 1-1. TK-860G Front Panel IO (Power) switch Press to switch the transceiver ON (or OFF). LED indicator Lights red while transmitting. Lights green while receiv- ing. Flashes orange while receiving a Code Squelch or Selective Call code, or a 2-Tone code that matches the one set up in your transceiver. /keys These are PF (Programmable Function) keys. Press each key to activate its auxiliary function. The default settings are Volume Up and Volume Down. Display See right. /keys These are PF (Programmable Function) keys. Press each key to activate its auxiliary function. The default settings are Channel Up and Channel Down. Microphone jack Insert the microphone plug into this connector. MON, A, D/A, , , and SCN keys (TK-860G) MON, , , and A keys (TK-862G) These are PF (Programmable Function) keys. Press each key to activate its auxiliary function. PTT (Push-to-Talk) switch Press this switch, then speak into the microphone to call a station. 12345 76 8 12345 76 1-2. TK-862G Front Panel 1-3. Microphone 1 2 3 4 5 6 7 8 1-4. Display TK-860G Indicator Description Appears while using SmarTrunk. Appears when the selected channel in busy. Appears when QT, DQT, DTMF, or 2-Tone decoding is deactivated (by pressing the Monitor key). Appears when you receive a Code Squelch, Selective Call, 2-Tone code. Also appears when you transmit using Code Squelch or Selective Call. Appears while scanning. Appears when the AUX port is activated. Appears when the selected channel is included in the scanning sequence. Displays the selected channel number (or name), DTMF digits (when entering digits, confirming digits, or making a call), and mes- sages received via Selective Call. TK-862G Indicator Description Appears when QT, DQT, DTMF, or 2-Tone decoding is deactivated (by pressing the Monitor key). Appears when the AUX port is activated. Displays the selected channel number. OPERATING FEATURES
6 TK-860G/862G 1-5. Rear panel Antenna connector External speaker jack Power input connector 1-6. Programmable Auxiliary Functions The following keys can be programmed with the func- tions listed below. TK-860G : / (left side),/ (right side), MON, A, D/A, , , and SCN. TK-862G : / (left side),/ (right side), MON, , , and A. • AUX • Channel Down • Channel Up • Display Character (TK-860G only) • Emergency * 1 • Group Down (TK-860G only) • Group Up (TK-860G only) • Home Channel • Horn Alert • Key Lock • Monitor A (Monitor Unmute-Momentary) • Monitor B (Monitor Unmute-Toggle) • Monitor C (Carrier Squelch-Momentary) • Monitor D (Carrier Squelch-Toggle) • None (No function) • Operator Selectable Tone * 2 (TK-860G only) • Public Address • Redial • Scan (TK-860G only) • Scan Del/Add (TK-860G only) • Selectable QT * 3 (TK-860G only) • Talk-Around • Volume Up • Volume Down • 2-Tone Encode Select * 4 *1 : This function can be used only with a foot switch. *2 : This function is available for K market models only. *3 : This function is available for M market models only. *4 : The code for the TK-862G transceiver is not selectable. You can transmit only one 2-Tone code, which is pre- programmed in the transceiver. 2. Operation Features The TK-860G/862G is a UHF FM radio designed to oper- ate in conventional format. The programmable features are summarized. 3. Transceiver Controls and Indicators 3-1. Front Panel Controls All the keys on the front panel are momentary-type push buttons. The functions of these keys are explained below. •POWER key Transceiver POWER key. When the power is switched off, all the parameters are stored in memory. When the power is switched on again, the transceiver returns to the previous conditions. •CHANNEL UP/DOWN key (Programmable) • / key (Programmable) : TK-860G only •SCAN key (Programmable) : TK-860G only •MONITOR key (Programmable) •A, D/A key (Programmable) : TK-860G only • , , A key (Programmable) : TK-862G only •VOLUME UP/DOWN key (Programmable) •BUSY/TX LED The BUSY indicator (Green LED) shows that the channel is in use. The TX indicator (Red LED) shows that you are transmitting. 3-2. Programmable Keys The FPU (KPG-56D) enables programmable keys to se- lect the following functions. AUX, Channel down, Channel up, Display character * 1, Emergency (Only foot key ; M type only), Group down *1, Group up *1, Home channel, Horn alert, Key lock, Monitor A, Monitor B, Monitor C, Monitor D, Operator selectable tone (K type only), Public address, Redial, Scan * 1, Scan del/add *1, Talk around, Volume down, Volume up and None. These functions the FPU programs to the functionkeys and described in the following sections. *1 : TK-860G only. •AUX If this key is pressed, "AUX" icon lights on the display and AUX port which is inside of the transceiver turns to the high level. If pressed again, the "AUX" icon goes off and the AUX ports turns to the lower level. •Channel up/down When the key is pressed each time, the channel number to be selected is incremented/decremented and repeats if held for one second or longer. OPERATING FEATURES
7 TK-860G/862G •Display character (TK-860G only) This key switches the LCD display between the group and channel number and the group and channel name. •Emergency (M market models only) Pressing this key for longer than 1 second causes the transceiver to enter the emergency mode. The transceiver jumps to the programmed "Emergency the group and chan- nel" and transmits for 25 seconds. The transceiver disables mic mute while transmitting. After finishing transmission, the transceiver receivers for 5 seconds. The transceiver mutes the speaker while receiv- ing. Following the above sequence, the transceiver contin- ues to transmit and receive. •Group up/down (TK-860G only) When the key is pressed each time, the group number to be selected is incremented/decremented and repeats if held for one second or longer. •Home channel Press this key once, the channel switches to the pre-pro- grammed home channel. •Horn alert If you are called from the base station using 2-tone/DTMF while you are away from your transceiver, you will be alerted by the vehicle horn or some other type of external alert. To turn the horn alert function on , press this key. A confirmation tone sounds, (and the display shows "HA" on the LCD * 1). If this key is pressed again, the horn alert function is turned off. *1 : TK-860G only. •Key lock Pressing this key causes the transceiver to accept entry of only the [Vol Up/Down], [Key lock], [PTT], [Monitor A], [Monitor B], [Monitor C], [Monitor D], and [Emergency] keys. •Monitor Used to release signalling or squelch when operating as a conventional. It is also used to reset option signalling. •Operator selectable tone (K market models only) This key switches the pre-set decode QT/DQT and en- code QT/DQT to OST (Operator Selectable Tone) tone pair. Press this key, the transceiver enters to OST select mode. In this mode, the display shows "OFF" and the opera- tor can select one of the OST tone pair using the channel up/ down key. The display shows "TONE **" and tone pair No. ** is selected. Press OST key again, the transceiver exits from the OST select mode. 16 kinds of tone pair for OST can be programmed by KPG-56D. OST is useful to access the repeater with same radio frequency and different tone (QT/DQT). OPERATING FEATURES •Public address Public address amplifies the microphone audio, and out- puts it through a PA speaker. PA is activated by pressing this key. A confirmation tone sounds, (and the display shows "PA" * 1). PA can be activated at anytime (scanning or non-scanning). The RADIO continues to scan & receive calls while in PA mode. Pressing PTT activates PA, and will override an in- coming call at anytime; however, no RADIO transmission takes place. If this key is pressed again, a confirmation tone will sound, (the display will return to the normal channel or SCAN display * 1), and the PA function will turn off. *1 : TK-860G only. •Redial If you press this key when the group/channel is dis- played, the last transmitted DTMF code will appear on the display. Pressing the PTT switch at this time will transmit the displayed DTMF code. •Scan (TK-860G only) Press this key starts scanning. Pressing this key stops scanning. •Scan del/add (TK-860G only) This key switches the currently displayed channel be- tween "Delete" and "Add". The "Add" channel contained in the scan sequence, and "Delete" channel is not contained. In the scan mode, this key switches the channnel delete or add temporarily. •Talk around Press this key, the transceiver uses the receive fre- quency and the tone for transmission. The operator can call the other party directory (without repeater). Press this key again, the talk around function goes off. •Volume up/down When the key is pressed, the volume level is increased/ decreased and repeats if held for 200ms or longer. •None Sounds error operation beep, and no action will occur. Use this function when the transceiver is required to be more simple operated. 4. Scan Operating (TK-860G only) Scan types •Single group scan You can scan all valid (ADD) channels in the displayed group that can be selected with the group up/down key. •Multiple group scan You can scan all valid (ADD) channels in the all valid (ADD) group.
8 TK-860G/862G SCAN start condition One or more non-priority channels must be added to all channels that can be scanned. The transceiver must be in normal receive mode (PTT off). When you activate the key programmed to the scan func- tion, the scan starts. The scan icon "SCN" lights and "SCAN" is indicated on alphanumeric display. Scan stop condition The scan stops temporarily if the following conditions are satisfied. 1) A carrier is detected, then signalling matches on chan- nels for which receive the signalling is set by the pro- gramming software. 2) A carrier is detected on the channels for which receiving signalling is not set by the programming software or when the monitor (signalling cancel) function is activated. Scan channel types 1) Priority channel is the most important channel for the scan, and always detects a signal during scan and when the scan stops temporarily. 2) Non-priority channels detects a signal during scan. For the channels that can be selected with the group or chan- nel up/down key when the scan does not occur, adds an indicator "A" lights. Priority channel setting A priority channel can be set as follows with the program- ming software (KPG-56D). 1) Specify a priority channel as a fixed priority channel. 2) Make a selected channel, a priority channel. Scan type according to the priority channel 1) When no priority channel is set : Only the non-priority channels are scanned. If a non-priority channel stops temporarily, it stops until there is no signal on the channel. 2) When priority channel is set : Either priority channel is scanned. If a non-priority channel stops temporarily, a priority chan- nel signal is detected at certain intervals. If a priority channel stops temporarily, it stops until there is no signal on the priority channel. Revert channel The revert channel is used to transmit during scanning and set by the programming software (KPG-56D). 1) Priority The transceiver reverts to the priority channel. 2) Priority with talkback The transceiver reverts to the priority channel. If you press PTT during a resume timer (dropout delay time, TX dwell time) or calling, you can transmit on cur- rent channel to answer to the call however revert channel is set to priority channel. After resume time, scan re-starts and transmission chan- nel is return to priority channel.3) Selected channel The transceiver reverts to the channel before scanning or the channel that you changed during scan. 4) Last called channel The transceiver reverts to the last called channel during the scan. 5) Last used channel The transceiver reverts to the last used (transmitted) channel during scan. "Last used" revert channel includes talkback function. 6) Selected with talkback The transceiver reverts to the channel before scanning or the channel that you changed during scan. Scan end When you reactivate the key programmed to the scan function during scan mode, the scan ends. The scan icon "SCN" and "SCAN" display goes off. Temporarily delete/add It is possible to delete or add channel temporarily during scan. When scan stops on unnecessary channel for ex- ample by interference of the other party, activate the delete/ add function (for example press the key), then that channel is deleted temporarily and scan re-start immediately. When you would like to add the deleted channel tempo- rarily to scan sequence, select the desired (deleted) channel during scan, activate the delete/add function (for example press the key) before scan re-start. That channel is added temporarily to scan sequence. The temporary deleted or added channels are returns to pre-set delete/add, when the transceiver exits from scan mode. 5. Details of Features Time-out timer The time-out timer can be programmed in 15 seconds increments from 15 seconds to ten minutes. If the transmit- ter is keyed continuously for longer than the programmed time, the transmitter is disabled and a warning tone sounds while the PTT button is held down. The alert tone stops when the PTT button is released. PTT ID PTT ID provides a DTMF ANI to be sent with every time PTT (beginning of transmission, end of transmission, or both). You can program PTT ID "on" or "off" for each group. The contents of ID are programmed for each channel. The timing that the transceiver sends ID is program- mable. BOT : DTMF ID (BOT)/MSK ID is sent on beginning of transmission. EOT : DTMF ID (EOT)/MSK ID is sent on end of transmis- sion. Both : DTMF ID (BOT)/MSK ID is sent on beginning of transmission and DTMF ID (EOT)/MSK ID is sent on end of transmission. OPERATING FEATURES
9 TK-860G/862G Off hook decode If the Off hook decode function has been enabled, re- moving and replacing the microphone on the hook has no effect for decoding QT/DQT and option signalling. "TOT" pre-alert The transceiver has "TOT pre-alert timer. This parameter selects the time at which the transceiver generates "TOT" pre-alert tone before "TOT" is expired. "TOT" will be expired when the selected time passes from a TOT pre-alert tone. "TOT" re-key time The transceiver has "TOT" re-key timer. This timer is the time you can not transmit after "TOT" exceeded. After "TOT" re-key time expired you can transmit again. "TOT" reset time The transceiver has "TOT" reset timer. This timer is the minimum wait time allowed during a transmission that will reset the "TOT" count. "TOT" reset time causes the "TOT" to continue even after PTT is released unless the "TOT" reset timer has expired. OST (Operator Selectable Tone) (TK-860G K market models only) The transceiver is capable to have "OST" function and 16 tone pair (QT/DQT). Clear to transpond The transceiver waits the transpond of 2-tone /DTMF if channel is busy until channel open. This feature prevents the interference to other party. 6. Option Signalling (DTMF/2-Tone) Built-in DTMF decoder is available for option signalling. Built-in 2-tone decoder is available for option signalling. It is possible to use individual call, group call, D.B.D. (Dead Beat Disable). D.B.D. is used with DTMF only. If the option signalling matches, a predetermined action will occur. If option signalling matches on a group/channel which is set up with option signalling, the option signalling indicator (CALL) will flash and option signalling will be released. The transpond or alert tone will sound. The orange LED will flash. While option signalling matches (or if option signalling is deactivated when you are transmitting), you can mute or unmute QT/DQT/Carrier. OPERATING FEATURES AND/OR You can select AND or OR for option signalling match conditions. Alert/Transpond AND QT/DQT+DTMF (2-tone); Option matches = Action OR QT/DQT+DTMF (2-tone); Option matches = Action AF mute open AND QT/DQT+DTMF (2-tone); Option matches = Action OR QT/DQT/ID; Signalling only matches = Action With OR set up, alert/transpond will not function with only DTMF. With OR set up, AF mute will not release when only DTMF matches. With a conventional channel not set up with QT or DQT, only the carrier is considered when signalling matches. Auto Reset If option signalling matches a group set up with option signalling, option signalling is released. After matching op- tion signalling, option signalling will temporarily reset auto- matically. Dead Beat Disable If the D.B.D. code matches, a predetermined action will occur. Whether option signalling is activated or not, when D.B.D. matches on any channel, the transceiver will become TX inhibited or TX/RX inhibited. While D.B.D. is active, if the D.B.D. code + "#" code is received, D.B.D. will disactivate. When D.B.D. matches, transpond will function. Alert will not be output, and option signalling match icon will not ap- pear. 7. Audible User Feedback Tones The transceiver outputs various combinations of tones to notify the user of the transceiver operating state. The main tones are listed below. The high tone is 1477Hz, the mid tone is 941Hz, and the low tone is 770Hz. Power on tone This tone is output when the transceiver is turned on. (The high tone is output for 500ms.) Alert tone This tone is output when the transceiver is TX inhibition for TOT, and PLL unlocked. It is output until the PTT button is released. DBD on tone When a D.B.D. code is received, transpond tone sounds. DBD off tone When a D.B.D. release code is received, transpond tone sounds.
10 TK-860G/862G Busy tone Sounds in conventional mode, when busy channel lock- out is functioning. You can select yes or no for the optional feature's warning tone. Group call tone Sounds when a group call with the correct DTMF/2-tone option signalling is received, repeats 7 times. You can se- lect yes or no for the optional feature's warning tone. Individual call tone Sounds when an individual call with the correct DTMF/2- tone option signalling is received. You can select yes or no for the optional feature's warning tone. Key press tone [A] Sounds when a key is pressed. For toggle keys, sounds when toggle function is turned on (key press tone [B] sounds when it is turned off). You can select yes or no for the optional feature's control tone. Key press tone [B] Sounds when a key is pressed. For toggle keys, sounds when the toggle function is turned off (key press tone [A] sounds when it is turned on). You can select yes or no for the optional feature's control tone. Key input error tone Sounds when a key is pressed but that key cannot be used. You can select yes or no for the optional feature's warning tone. Roll over tone Sounds in Conventional format at the smallest group/ channel. You can select yes or no for the optional feature's control tone. Transpond tone Sounds when an individual call with the correct DTMF/2- tone option signalling is received. For group calls, only the group tone will sound, not the transpond tone. Pre alert tone Sounds prior to the TOT TX inhibit activation. If TOT pre alert is set, the tone sounds at the amount of time pro- grammed, before the TOT expires (TOT time – TOT pre alert time = Pre alert tone sounding time). You can select yes or no for the optional feature's warning tone. OPERATING FEATURES / REALIGNMENT REALIGNMENT 1. Modes User mode Panel test mode (TK-860G only) PC mode Firmware program- ming modePanel tuning mode Data program- ming mode PC test mode PC tuning mode Self programming mode (TK-860G only) Check sumClone mode Mode Function User mode For normal use. Panel test mode Used by the dealer to check the funda- ment characteristics. Panel tuning mode Used by the dealer to tune the radio. PC mode Used for communication between the radio and PC (IBM compatible). Data programming Used to read and write frequency data mode and other features to and from the radio. PC test mode Used to check the radio using the PC. This feature is included in the FPU. See panel tuning. Firmware program- Used when changing the main program ming mode of the flash memory. Clone mode Used to transfer programming data from one radio to another. Self programming Frequency, signalling and features write mode to the radio. 2. How to Enter Each Mode Mode Operation User mode Power ON Panel test mode[SCN]+Power ON (Two seconds) PC mode Received commands from PC Panel tuning mode [Panel test mode]+[SCN] Firmware programming mode[CH]+Power ON (Two seconds) Clone mode []+Power ON (Two seconds) Self programming mode [A]+Power ON (Two seconds) 3. For the Panel Test Mode (TK-860G only) Setting method refer to ADJUSTMENT. 3-1. For the Panel Tunning Mode Setting method refer to ADJUSTMENT.