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1 800MHz/900MHz FM TRANSCEIVER
SERVICE MANUAL
C'
O 1994-8 PRINTED IN JAPAN
B51-8281-00( N ) 121 9
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CIRCUIT DESCRIPTION ......................................... 27
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GENERAL INTRODUC'TION v ns are recommended for SCOPE OF THIS MANUAL This manual i? intended for use by experienced one is within two feet (0.6 technicians familiar with similar types of commercial grade communications equipment. It contains all re- ransmit until all RF connectors are verified quired service information for the equipment and is ectors are properly termi- current as of the publication data. Changes which may occur after publication are covered by either Service DO NO
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9401941 5. INSTALLATION PLANNING - CONTROL STATIONS E INSTALLATION 5-1. Antenna system Control station. The antenna system seect~on de- e vehicle and determine how and where pends on many factors and IS beyond the scope of this manual. Your KENWOOD dealer can help you select cable runs for protection against pinching or an antenna system that will best serve your particular g wiring, and radio installation to prevent,over- needs. 4-2. Antenna 5-2. Radio location Select a convenlent
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SYSTEM SET-UP Merchandise received P t Frequency range (MHz) RF power Type License and frequency allocated by FCC TX 806-825 15W TK-940 K I 851 -870 RX 851-870 TX 896-902 , 15W TK-9,41 K w Choose the type of transceiver 935-941 RX 935-941 Y- See page 16. Modify the control unit when used KDD-4. I See page 13. Transceiver programming A personal computer (IBM PC or compatible), programming interface (KPG-4), (Option) and programming software (KPG-25D) are required for prog
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OPERATING FEATURES 2. Transceiver Controls and Indicators (Fig. 1) 1. Operation Featu tes 2-1. Font Panel Controls The TK-9401941 s an 8001900MHz-band EFJ LTRIM- All the keys on the front panel ale momentary-type compat~ble trunked ladlo deslgned to operate In both trunked and convent~ona modes The programmable push buttons The funct~ons of these keys are ex- features ale summarlzed plained below 1-1. General Transceiver Features POWER key Transceiver POWER key. Any combination of 32
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OPERATING FEATURES AUX key Group display This key toggles the auxiiiary function on and off. If Shows the selected group rlumbei (1-MAX 250) this key is pressed once, the auxiliary function is en- Zero ~ndicates group 10 Only the programmed groups d~splayed The group d~splay 1s located above the ' abled. If the key is pressed again, the auxiliary function are is d~sabled. The confirmation tone is the same as that GROLIP LIPIDOWN key of the scan key. The following auxiliary functions are
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OPERATING FEATURES 3-2. System Lockout . Alphanumeric display The system lockout feature IS used to lock systems The 8-dig~t alphanumerlc (NN) display also shows out of the scan sequence, and can be selected by pro- system and group numbers. 8-digit alphanumeric If the gramming in the following two ways: displays can be programmed for each group. alphanumeric display IS not programmed, the system and group numbers are displayed. Fixed lockout The system to be locked out is selected by
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OPERATING FEATURES 3-9. Priority ID Codes 3-5. SystemIGroup Revert The priority of the programmable decode ID codes SystemIGroup revert can be programmed for one of for each system is as follows: the following: 1) Fixed ID code 1 2) F~xed ID code 2 Last call revert 3) Selected ID code The system or group changes to the revert system 4) Other selectable ID codes (Group scan only) or group when a call IS received with the system or group being scanned. 5) Block decode codes When a c
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OPERATING FEATURES 1 3-17. Preferred System Revert 3-13. Free System Ringback Thls feature is avalabe only when a telephone inter- This feature is available by assigning this feature to > ) connect ID code IS selected. If a busy tone sounds the AUX (Aux~liary) key The feature is used to move when the PTT button IS pressed, the transceiver enters the revert system/group to the fixed programmed sys- this mode automat~cally. temlgroup qu~ckly. When the AUX key IS pressed during scanning, t
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OPERATING FEATURES 3-19. AUTO TEL Delay tone A telephone interconnect call can be made by sim- Th~s tone is output when the Pn button is pressed and the repeater is accessed three times or more to ply pressing the AUX (Auxiliary) key by assigning this feature to the key. This feature accesses the TEL indicate connection with the repeater is delayed. This channel of the available system automatically. tone is the same as the Busy tone. (It is not output of When the AUX key is pressed, a qu
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OPERATING FEATURES The KDD-4 can be set with the decode ID of each 3-22. Conventional System Operation Up to 250 (MAX) channels can be programmed for group. If it is supporled, the following features are available: each system programmed as a conventional system. Channels can be selected by the group key. Audio mute OT (~uiet-~alk), DQT (D~gital Quiet-Talk), or carrier If the decode latch Input port is low during reception squelch can be set for transmit or receive channels. If and th
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OPERATING FEATURES 3-25. System Scan Type 3-24. Horn Alert Fix system scan Horn alert can be set to on or off for each group AII the set systems except locied-out ones are Elther cont~nuous or non-continuous operation can be If the DELIADD feature IS asslgned to the set by the FPU The horn alert port IS enabled or scanned AUX key, d~sabled as follows, ~t can be controlled from the front panel List type scan Enable A scan list can be set for each system. D~sable The list to be scann
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OPERATING FEATURES C 4. Transceiver Programming Ir 4-1.lntroduction The TK-9401941 transceiver IS programmed uslng an IBM PC or compatlbe machlne, a programming Inter- face (KPG4), and a programmlng dlsk (KPG-25D) Fig- ure 4 shows the setup for an IBM PC .. Programming disk (KPG-25D) Fig. 4 4-4. Data Program Mode 4-2. KPG-4 Description In thts mode, data IS wr~tten Into the flash memory (Optional PC programming interface cable) In the transceiver, When the power IS turned on, data
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OPERATING FEATURES 4-5. Clone Mode (Figure 51 5. Description of Each Modes Programmed data is transferred from one 5-1. Dealer mode transceiver to another by using a microphone cable. To enter this mode, hold down the GROUP UP key, 1. Connect the master set to the slave set with. turn the transceiver on, and keep the GROUP UP key 2. Turn the slave set on down for two more seconds The mode can be 3. Hold down the AUX key, turn the master set on, and inhibited by programming. keep the
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OPERATING FEATURES 5-2. Panel Tuning Mode . GROUP key Used to select the signal~ng encodeldecode data or This mode can be inhibited by programming. The following can be adjusted with the front keys: squelch adjustment. Squelch level - TONE QT fine deviation GROUP None (No decode; squelch can be adjusted.) . DQT fine deviation 1 -- 100H: sqilare wave (No decode; squelch can be adjusted ) LTR ID fine deviation 2 ---- LTR format' (Decode; squelch cannot be adjusted.) RF power 3 QT
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INSTALLATION 1. Installing the Signaling Unit (KDD-4 D'TMF : Option) 1-1. KDD-4 assembly 1. Solder the 9-pin leads with connector to the KDD-4 board locations designated with the unit specification numbers. (Fig. 1) Fig. 1 2. Put an insulating tube around the KDD-4 board and heat it so that the tube encases the board. (Fig. 2)
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INSTALLATION 1-2, Installing the KDD-4 in the transceiver I. Remove the two halves of the case transceiver and the control panel. (Fg. 3) Fig. 3 2, Install the KDD-4 on the TX-RX unit (B12). (Fig. 4) 1) Attach the pad to the KDD-4 ( 0 ). 2) Plug the KDD-4 connector into CIV203 of the TX- RX unit (BIZ) ( 0 ). 3) Attach the KDD-4 to the TX-RX unit (0). 4) Reinstall the panel and the two halves of the cases. Cornpon.:- cide Fig. 4
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INSTALLATION 1-3. Setting the KDD-4 code (DTMF) This product IS bu~lt using surface mount construc- tion techniques. The solder jumpers used to configure this product should be changed using equipment-and 1 MONIRESET > 1 ON-HOOK OFF-HOOK techniques suitable for surface mount device repair. I JU2 1 Shorted Open c~rcu~t "- 1 (--I supply Abuse due to the use of inappropriate tools and tech- niques will VOID the warranty. JU3 JUJ MUTE URIMUTE * 0 3 ,mr.m u, m Shorted E Sinks to (-1 sup
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INSTALLATION 3. Insert the KCT-19 cable ( 0) into the chassis ( 0) 2-1. Terminal function The wire harness band (0) must be inside the No. (A) No. lB,C,DI - Narne Function -- - chassis. A- 1 D-2 HK MC hook input 4. Relocate the DC cord bushing in the chassis (0). A-2 ME MICGND D-5 5. Connect the KCT-I9 to the TX-RX unit (A121 as Detect output shown in Figure 7 i 0 1. 6. Connect the KCT-19 to i!le external accessory by A-5 D-6 MIC input 8-2 GND inserting the crimp terminal (0) into
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INSTALLATION 3. Ignition Sense Cable (KCT-18 : Option) The KCT-18 is an optional cable for enabling the @ ignition function. The ignition function lets you turn the 1 i power to the transceiver on and off with the car ignition I j key. If you use the Horn Alert function (KDD-4 requ~red) I , or the Manual Relay function, you can turn the function 1 t off while driving with the ~gnit~on key. 1 k 3-1. Connecting the KCT-18 to the transceiver k B. 1. Install the KCT-19 in the t
