Service Manual 761x (VHF) 764x (UHF) Conventional Mobile VHF 146-174 MHz 45 Watts Part No. 242-7610-0xx UHF 400-430, 450-470, 470-490, 490-512 MHz 35 Watts Part No.
761x (VHF) 764x (UHF) CONVENTIONAL FM TWO-WAY RADIO VHF 146-174 MHz 45 Watts UHF 400-430, 450-470, 470-490, or 490-512 MHz 35 Watts Copyright© 1998 by Transcrypt International Incorporated Transcrypt offers communication solutions in two core areas: land mobile radio products and systems, and information security. EFJohnson land mobile radios and systems provides wireless communication for a variety of markets including government, public safety, and commercial users.
TABLE OF CONTENTS 1 GENERAL INFORMATION 1.1 1.2 SCOPE OF MANUAL . . . . . . . . . . . . . . . . . . . .1-1 TRANSCEIVER DESCRIPTION . . . . . . . . . . .1-1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.3 PRODUCT WARRANTY . . . . . . . . . . . . . . . . .1-1 1.4 PART NUMBER BREAKDOWN . . . . . . . . . . .1-1 1.5 TRANSCEIVER IDENTIFICATION. . . . . . . . .1-1 1.6 ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . .1-1 1.7 FACTORY CUSTOMER SERVICE. . . . . . . . .
TABLE OF CONTENTS (CONT’D) 4.5 4.6 UNIQUE PMR (EUROPEAN) SCREENS . . 4-15 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15 Unique PMR Screens . . . . . . . . . . . . . . . . . . . . 4-15 CLONING (PROGRAMMING ONE TRANSCEIVER WITH ANOTHER) . . . . . 4-16 5A VHF (7610) CIRCUIT DESCRIPTION 5.1 VHF RECEIVER CIRCUIT . . . . . . . . . . . . . . . . 5-1 Antenna Switching Circuit . . . . . . . . . . . . . . . . . 5-1 RF Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS (CONT’D) 8 SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS LIST OF FIGURES 2-1 2-2 2-3 2-4 2-5 2-6 2-7 3-1 4-1 4-2 5-1 5-2 5-3 5-4 5-5 5-6 6-1 6-2 6-3 6-4 6-5 6-6 VHF (761x) Models Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1 Transistor and Diode Basing. . . . . . . . . . . . . . . . .8-2 Main Unit Board Bottom View. . . . . . . . . . . . . . .8-3 Main Unit Board, Top View . . . . . . . . . . . . . . . . .8-4 Main Unit Schematic . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION SECTION 1 GENERAL INFORMATION 1.1 SCOPE OF MANUAL 1.4 PART NUMBER BREAKDOWN This service manual contains operation, installation, programming, alignment, and service information for the EFJohnson® 7610 and 7640 mobile transceivers. The following is a breakdown of the part number used to identify this transceiver. 242 - 7 6 x x - 0 x x Config. Band 1 = VHF 4 = UHF 1.2 TRANSCEIVER DESCRIPTION 1.2.
GENERAL INFORMATION Table 1-1 75xx Accessories 5:30 PM. Central Time, Monday - Friday. The Customer Service Department can be reached using one of the following telephone numbers: Accessory Toll-Free: (800) 328-3911 (From within continental United States only) International: (507) 835-6911 FAX: (507) 835-6969 E-Mail: First Initial/Last Name@efjohnson.com (You need to know the name of the person you want to reach. Example: jsmith@efjohnson.
GENERAL INFORMATION nator (C512, for example) and the model number of the equipment the part is from. Return Authorization (RA) numbers are not necessary unless you have been given one by the Field Service Department. RA numbers are required for exchange units or if the Field Service Department wants to be aware of a specific problem. If you have been given an RA number, reference this number on the Factory Repair Request Form sent with the unit.
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GENERAL INFORMATION 7610 (VHF) AND 7640 (UHF) MOBILE SPECIFICATIONS The following are general specifications intended for use in testing and servicing this transceiver. For current advertised specifications, refer to the specification sheet available from your sales representative. Values are typical and are subject to change without notice.
GENERAL INFORMATION NOTES November 1998 Part No.
INSTALLATION AND DISASSEMBLY SECTION 2 INSTALLATION AND DISASSEMBLY Optional Accessory Cable P.N. 585-7600-027 External Spkr Jack UHF-Type Ant Jack DB-9 Female Red (+) 10-Ft. Power Cable Black (–) Optional External Speaker P.N. 250-0151-010 20A Fuses Figure 2-1 Installation Components 2.1 GENERAL 2.1.1 SCOPE OF INSTRUCTIONS Since each installation is somewhat unique, the following installation instructions are intended only as a general guide to installing this transceiver. 2.1.
INSTALLATION AND DISASSEMBLY Figure 2-2 Mounting Bracket Installation WARNING • Do not mount the transceiver where it may interfere with the operation of vehicle controls. • Do not mount the transceiver where the user cannot easily reach the controls and view the display. • Do not mount the transceiver where it may cause additional injury in case of an accident. • 2.2.3 INSTALLING MICROPHONE HANGER Install the included microphone hanger in a convenient location.
INSTALLATION AND DISASSEMBLY input that can be used to control the backlight (see Section 3.3.9). This cable is installed as shown in Figure 2-3. 2. Route the red and black wires from the transceiver to the battery. Connect the red wire to the positive (+) terminal and the black wire to the negative (–) terminal. This cable has a standard DB-9 female connector for interfacing to external equipment. The pin numbering and functions are as follows: 3.
INSTALLATION AND DISASSEMBLY 2.6 TRANSCEIVER DISASSEMBLY Removing Bottom Cover and Front Panel 1. Remove the bottom cover by removing four screws (A) as shown in Figure 2-4. 2. Remove the front panel by removing two screws (B). Figure 2-5 PC Board Screws Figure 2-4 Cover and Front Panel Removal Removing PC Board 3. Remove ten screws (C) and two clips (D) as shown in Figure 2-5. Figure 2-6 Removing PC Board 4. Remove shield (E). 5. Unsolder the antenna connector at three points (F). 6.
INSTALLATION AND DISASSEMBLY 2.7 2-TONE/5-TONE MODULE INSTALLATION Screen Menu - Select “Key & Display Assign” and program an option key or the microphone hanger for the monitor function so that the decoder can be re-activated when the call is complete (see Table 4-2). 2.7.1 INSTALLATION PROCEDURE 1. Turn power off and disconnect the power cable. 2.7.3 5-TONE PROGRAMMING 2. Remove the bottom cover by removing the four screws (A) shown in Figure 2-5.
INSTALLATION AND DISASSEMBLY 4. Check channels on each end of the operating band to make sure deviation is within the following limits. If not, repeat preceding adjustment. 1. Monitor the transmit signal with a communications monitor. Set it for HPF = Off, LPF = 20 kHz, Deemphasis = Off, and Level = (P-P)/2. 25 kHz Channel Spacing - ±3.0 to 5.0 kHz 20 kHz Channel Spacing - ± 2.4 to 4.0 kHz 12.5 kHz Channel Spacing - ±1.5 to 2.5 kHz 2.
OPERATION SECTION 3 OPERATION Volume Down Volume Up Microphone Connector Transmit Indicator Scan List Indicator Busy Indicator Bell Indicator Monitor Indicator Alphanumeric Display Channel Up* Programmable Option Switches Channel Down* Power Switch * The Channel Up/Down switches can also be programmed for other functions. Figure 3-1 7600 Front Panel 3.
OPERATION 3.2 CONTROLS AND DISPLAY Monitor Indicator ( ) - Indicates that the monitor mode is enabled. This mode disables coded squelch control so that all messages occurring on the channel are heard. Refer Section 3.4.4 for more information. 3.2.1 FRONT PANEL CONTROLS Power Switch ( ) - Press this switch to turn power on and press and hold it to turn power off. The transceiver may be programmed so that a password must be entered to allow operation. Refer to Section 3.3.2 for more information.
OPERATION and then again to return to the normal channel display. then ready to be used. To turn power off, press and hold the POWER switch until power turns off. 3.3.2 ENTERING A PASSWORD F1 - Minimum volume level (see Section 3.3.3) F2 - Key beep on-off (see Section 3.5.4) F3 - Backlight on-off (see Section 3.5.2 F4 - Squelch adjust (see description which follows) The transceiver may be programmed so that a password must be entered before the transceiver can be used.
OPERATION 3.3.7 BANK SELECT a microphone with a telephone keypad, or up to seven telephone numbers also may be preprogrammed and then selected by pressing the DTMF key (see description in Section 3.5.7). Two banks of up to 16 channels each can be programmed. Only the channels in the current bank are then selectable. This would allow, for example, groups of channels to be programmed for operation in different cities. 3.4.2 RECEIVING A CALL 1.
OPERATION • Table 3-1 Option Key Programmable Functions Note if the busy indicator ( ) on the front panel is being displayed. If it is not, the channel is not busy and a message can be transmitted. Function • • • Taking the microphone off-hook disables coded squelch control if it is programmed for the monitor function. Take the microphone off-hook and the indication should be displayed. If no messages are heard, the channel is not busy and a message can be transmitted.
OPERATION 3.5.5 CALL GUARD TONE SELECT transmission begins, the call cannot be canceled. Programming determines the channel on which the call is transmitted and also if it is transmitted once or repeatedly until a control code is received. If the transceiver has a TONE key, the Call Guard (CTCSS) tone can be selected. This allows calls to be placed to different mobiles or groups of mobiles and received on different groups than is normal for the channel. Proceed as follows: 3.5.
OPERATION 3.5.15 SCAN LIST PROGRAMMING display briefly indicates “WIDE” or “NARROW” to indicate the current mode. Each channel can also be programmed for wide or narrow band operation, and this switch toggles that setting. However, the change is only temporary because the programmed condition is reselected if the channel is changed or power is cycled. Pressing the TAG key changes the scan list status of the current channel. Refer to the scan list description in Section 3.6.2 for more information. 3.5.
OPERATION messages on other channels. If priority sampling is used, a priority A channel is designated by programming. If the PRI A key is available, pressing that key selects the priority A channel. This key also may be programmed so that if it is pressed and held, the priority A channel changes to the current channel. The scan lists are user programmable if the key is available. Pressing this key changes the status of the displayed channel in the current scan list only.
PROGRAMMING SECTION 4 PROGRAMMING Programming Cable (Includes Level Convert. Circuit) P.N. 585-7500-031 Female DB9 Plug To Computer Adapter Cable P.N. 585-7600-031 Figure 4-1 Programming Setup 4.1 GENERAL connect the computer to the transceiver. The programming cable has a female DB9 connector which plugs into the serial port of the computer. In this connector is a level converter circuit which converts the RS-232 levels of the computer to the logic levels required by the transceiver.
PROGRAMMING on the disk called ADJ. The use of this program is described in Section 5. These are DOS programs, so Windows® 3.x, 95, or NT are not required to run them. If the program does not run properly in Windows, run it in the DOS mode. • The Space or backspace key toggle the setting. • Use the File menu to save the data and exit the program. 4.4 MENU FLOW 4.4.1 INTRODUCTION Before you use the program, the files on the diskette should be copied to your hard disk or a programming disk.
PROGRAMMING 4.4.3 SCREEN MENU Common - Displays the screen shown in Table 4-7 which programs miscellaneous information such as various timer settings. Expert - Displays the screen shown in Table 4-8 which programs various timers and other information. Normally, the default value in this screen should not be changed. 4.4.4 PROGRAM MENU LMR (U.S.) Format NOTE: The Screen menu for PMR (European) models is slightly different than the LMR version shown above. Refer to Section 4.
PROGRAMMING Refer to Section 4.5 for more information on PMR models. 4.4.7 SETUP MENU in the Screen menu (see Section 4.4.3), Memory Channel screen (see Table 4-1), and DTMF Autodial screen (see Table 4-3). PMR - Selects PMR (European) models. Selecting this model displays unique parameters for programming a 5-tone option. As with the LMR selection, unique parameters are displayed in the Screen menu and Memory Channel and DTMF Autodial screens.
PROGRAMMING Table 4-1 Memory Channel Screen Description (LMR Models) (Continued) Parameter Ch Atr (Channel Attribute) Description Press (Enter) to display the menu which selects one of the following choices: A: Priority A - The channel is selected when the Prio A key is pressed, and it is monitored during priority scan. In addition, the microphone hanger can be programmed so that this channel is automatically selected whenever an off-hook condition occurs (see Table 4-2).
PROGRAMMING Table 4-1 Memory Channel Screen Description (LMR Models) (Continued) Parameter Description RF PWR Programs the RF power output for the channel (High, Low1, Low2). This setting can be temporarily or permanently overridden by the HIGH, LOW1, or LOW2 power option switch if it is programmed (see Table 4-2). Lockout Transmit Disable On Busy. The following conditions can be programmed: Off - No restrictions; the transmitter can be keyed even while receiving a signal.
PROGRAMMING Table 4-2 Key and Display Assign Screen Description KEY ASSIGN PARAMETERS The and F1-F4 option keys can be programmed for the following functions. Press the (Enter) key and then PgUp/PgDn to display and then select the desired function.
PROGRAMMING Table 4-2 Key and Display Assign Screen Description (Continued) Parameter Key Label RF ATT Lock ATT LOCK Beep Light Bank Up High Low 1 Low 2 BEEP LITE HIGH LOW1 LOW2 C. Tone CH Ent TONE Talk Around Wide/ Narrow TA Description Toggles the receive attenuate function on and off (see Section 3.5.13). Locks/unlocks all programmable keys except CALL, MONI, and EMER to prevent them from being accidentally pressed (see Section 3.5.9). Toggles the key beep function on and off (see Section 3.3.
PROGRAMMING Table 4-2 Key and Display Assign Screen Description (Continued) Parameter Description Enables or disables the display and key backlight. This programming can be overridden by the power-on menu (see Section 3.3.4) or LITE key (see Section 3.3.9). The “Auto” configuration allows it to be controlled by pin 1 of the DB9 connector on the optional accessory cable. The on condition is selected by 0 volts (low) and off by 12 volts (high).
PROGRAMMING Table 4-4 Continuous Tone Screen Description Description The continuous tones programmed in this screen are selected by pressing the C.Tone CH Ent function key (see Table 4-2) and then pressing the up/down keys. This allows the user to select the continuous tone being transmitted and received on the current channel. To transmit or receive using the codes programmed for the channel in the channel screen (see Table 4-1), select “TON--M” using the keys.
PROGRAMMING Table 4-5 Scan Function Screen Description (Continued) Parameter Description Stop Timer When Mode 2 or 3 above is programmed (priority scanning), this sets how often in seconds the priority channel is checked while receiving a message on some other channel. Resume This sets the scan resume delay in seconds. This is the time that elapses before scanning resumes after a message is received.
PROGRAMMING Table 4-6 2-Tone Code Channel Screen Description (Continued) Parameter Description Beep Emits (or turns off) the following beeps when receiving a matched 2-tone: Null - Beep emission (or non-emission) is retained even when receiving a matched 2-tone. Off - Repeater beep emission is turned off. Pi (Single) - One high beep once. PiPi (Single) - Two high beeps once. PiRo (Single) - One high and one low beep three times. Pi (Repeat) - One high beep repeated at selected intervals.
PROGRAMMING Table 4-7 Common Screen Description Parameter Description Programs the password that must be entered at power on if the following “PWR ON Password” parameter is User Password “On” or to cancel the “STUN” condition described in Table 4-6. Any four-digit number from 0000-9999 can be programmed. The password is entered as described in Section 3.3.2. Program Allows a comment to be programmed in the file for use in quickly identifying the contents of a transceiver.
PROGRAMMING Table 4-7 Common Screen Description (Continued) Parameter Description Power On This turns the password function on and off. When it is turned on, “PWoRd” is displayed when power is turned Password on and a four-digit password must be entered to enable the transceiver (see Section 3.3.2). The password is programmed in “User Password” above. If the STUN function disables the transceiver (see Table 4-6), password input is required even if this parameter is programmed “Off”.
PROGRAMMING Table 4-8 Expert Screen Description (Continued) Parameter Description Emer Sw Sets the period in seconds that the Emergency function key must be pressed to activate the emergency function. On Timer An emergency call is initiated by pressing the Emergency key for longer than this time. Emer Sw Sets the period in seconds that the Emergency function switch must be pressed to cancel an emergency call.
PROGRAMMING 4.6 CLONING (PROGRAMMING ONE TRANSCEIVER WITH ANOTHER) The following screens selected in the preceding Screen menu are unique to PMR models. Refer to online help for information on parameters in these screens. One transceiver can be used to program another with identical data. Replication Cable, Part No. 5972002-200 is required to connect the transceivers together (see Table 1-1).
PROGRAMMING 6. When cloning is complete, CLONE is displayed by the master and CLONE OK by the slave. 4. Connect the master transceiver to the slave (target) transceiver by plugging the cloning cable into the microphone jack of each. 7. To clone another transceiver, repeat this procedure starting with step 4. 5. Turn the slave transceiver on. Then momentarily press the POWER switch of the master transceiver to begin the data transfer. 8.
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VHF (7610) CIRCUIT DESCRIPTION SECTION 5A VHF (7610) CIRCUIT DESCRIPTION 5.1 VHF RECEIVER CIRCUIT frequency of the RF passband. This gives a wide bandwidth receiver good image response rejection. The diodes are controlled by the CPU IC1 via level controller IC5. 5.1.1 ANTENNA SWITCHING CIRCUIT 5.1.3 FIRST MIXER AND FIRST IF CIRCUITS The antenna switching circuit functions as a lowpass filter while receiving and a resonator circuit while transmitting.
VHF (7610) CIRCUIT DESCRIPTION Figure 5-1 Second IF System IC3 (VHF) Figure 5-2 Audio Switching and Amplifier Circuit (VHF) vided by R145 and C182. The audio signal is then applied to pin 16 of level controller IC5. This device allows the CPU to control the speaker volume level. The level controlled signal is fed out of IC5 on pin 15 and applied to low-pass filter IC6b. It is then applied to AF switching circuit IC4 on pin 8, and the switched output is on pin 9.
VHF (7610) CIRCUIT DESCRIPTION Part of the AF signal from pin 9 of FM IF circuit IC3 is applied to pin 24 of level controller IC5. This device allows the CPU to control the squelch threshold level. The level-controlled output signal on pin 23 is applied to IC3, pin 8 which is the input of an internal filter (see Figure 5-1). Noise frequencies of about 10 kHz are passed and then fed out on pin 7 and also applied to an internal noise detector.
VHF (7610) CIRCUIT DESCRIPTION Figure 5-3 PLL Circuit (VHF) 5.2.5 APC CIRCUIT 5.3 VHF PLL CIRCUIT The APC (Automatic Power Control) circuit protects the power amplifier from damage caused by a mismatched antenna load, and provides a stable power output. 5.3.1 PLL CIRCUIT The PLL (Phase-Locked-Loop) circuit provides a stable (± 5 PPM) receive first injection and transmit frequency. The PLL circuit consists of PLL circuit IC2, a loop filter, and reference oscillator.
VHF (7610) CIRCUIT DESCRIPTION 5.4.2 VHF CPU IC1 PORT ALLOCATION The phase detector determines the phase difference between these signals and then produces output pulses on pin 8 which are filtered by the loop filter. This filter consists of R43-R45, C60, and C61. The output of this filter is the DC control voltage applied to the VCO. The phase detector increases or decreases this control voltage to change the VCO frequency. Pin No. 1 12 5.3.
VHF (7610) CIRCUIT DESCRIPTION Pin No. 51 5254 55 90 91 9496 97 98 99 100 Port Name 5.4.4 VHF PORT EXPANDER IC11 (MAIN UNIT) Description Pin No. BM Outputs control signal for beep mute circuit Q10. High = Beep muted. CTDA0- Output port for CTCSS/DTCS signals. CTDA2 HANG Input port for the microphone hanger detection signal. Low = Microphone on hook. MTONE Output port for beep audio while receiving and 2/5 tone signals while transmitting. TONED Outputs DTMF signals.
UHF (7640) CIRCUIT DESCRIPTION SECTION 5B UHF (7640) CIRCUIT DESCRIPTION The tunable bandpass filters controlled by D7D10 employ varactor diodes to tune them to the center frequency of the RF passband. This gives a wide bandwidth receiver good image response rejection. The diodes are controlled by the CPU IC1 via level controller IC12. NOTE: The UHF transceiver block diagram is located on page 8-6. 5.5 UHF RECEIVER CIRCUIT 5.5.1 ANTENNA SWITCHING CIRCUIT 5.5.
UHF (7640) CIRCUIT DESCRIPTION Figure 5-4 Second IF System IC1 (UHF) Figure 5-5 Audio Switching and Amplifier Circuit (UHF) The filtered output signal on IC6d, pin 14 is applied to pin 8 of AF switching circuit IC11. The switched output signal on IC11, pin 9 is then applied to pin 16 of level controller IC12. This device allows the CPU to control the speaker volume level. The volume controlled output on pin 15 is then applied to pin 2 of AF switching circuit IC11.
UHF (7640) CIRCUIT DESCRIPTION Part of the AF signal from pin 9 of FM IF circuit IC1 is applied to pin 24 of level controller IC12. This device allows the CPU to control the squelch threshold level. The level-controlled output signal on pin 23 is applied to IC1, pin 8 which is the input of an internal filter (see Figure 5-4). Noise frequencies are passed and then fed out on pin 7 and also applied to an internal noise detector.
UHF (7640) CIRCUIT DESCRIPTION Figure 5-6 PLL Circuit (UHF) 5.6.5 APC CIRCUIT 5.7 UHF PLL CIRCUIT The APC (Automatic Power Control) circuit protects the power amplifier from damage caused by a mismatched antenna load, and provides a stable power output. 5.7.1 PLL CIRCUIT One diode in D1 detects forward signals and the other detects reverse signals. The combined voltage is at minimum level when a matched antenna load of 50 ohms is present and then increases as it becomes mismatched.
UHF (7640) CIRCUIT DESCRIPTION The phase detector determines the phase difference between these signals and then produces output pulses on pin 8 which are filtered by the loop filter. This filter consists of Q34, R180, R181, and C202C204. The output of this filter is the DC control voltage applied to the VCO. The phase detector increases or decreases this control voltage to change the VCO frequency. 5.7.4 UHF CPU IC1 PORT ALLOCATION Pin No. 1 12 5.7.
UHF (7640) CIRCUIT DESCRIPTION Pin No. 51 5254 55 90 91 9496 97 98 99 100 Port Name 5.7.6 UHF PORT EXPANDER IC13 (MAIN UNIT) Description Outputs control signal for beep mute circuit Q10. High = Beep muted. CTDA0- Output port for CTCSS/DTCS signals. CTDA2 HANG Input port for the microphone hanger detection signal. Low = Microphone on hook. MTONE Output port for beep audio while receiving and 2/5 tone signals while transmitting. TONED Outputs DTMF signals.
ADJUSTMENT PROCEDURE SECTION 6 ADJUSTMENT PROCEDURE 50 Ohm, 50W Load Wattmeter Frequency Monitor 13.6 Volt, 17A Power Supply Programming Cable Part No. 585-7500-031 4.0 Ohm Speaker Load Test Cable (Fabricated) Figure 6-1 Test Setup 6.1 GENERAL Equipment FM deviation meter Audio generator 6.1.1 SUGGESTED TEST EQUIPMENT The equipment that should be used to adjust this transceiver is listed in the following table.
ADJUSTMENT PROCEDURE Supply Voltage Internal Temp PLL Lock Voltage RSSI DTCS Bal Level Squelch Level Selected Channel Info IC5/IC12 D/A Outputs RF Power Output FM Deviation DTCS Balance Reference Frequency Adjusts Current Vol Level Rx Bandpass Filter Squelch Level NOTE: The above values for the various settings are examples only. Because of component tolerances, the optimum setting for each transceiver will probably be different.
ADJUSTMENT PROCEDURE Table 6-1 VHF Test Frequencies Tx/Rx Freq Call Guard Power Bandwidth [1] (MHz) Squelch 1 174.050 Low1 None Narrow or wide 2 146.050 Low1 None Narrow or wide 3 160.050 High None Narrow or wide 4 160.050 Low2 None Narrow or wide 5 160.050 Low1 None Narrow or wide 6 160.050 Low1 007N DTCS Narrow or wide 7 [1] 160.050 Low1 None Alternate 8 [1] 160.
ADJUSTMENT PROCEDURE VHF ADJUSTMENTS 2. Select the MODEL menu and press the down arrow ( ↓ ) key. Type “RESERVE” and press (ENTER). The “Reserved” indicator should begin flashing in the upper right corner of the screen. in the upper part of the screen is for the currently selected channel. 5. To move the cursor between the parameters on the left side of the bar graph, press the ↑ ↓ arrow keys. To change a parameter, press the ← →, PgUp/PgDn, backspace, or spacebar keys.
ADJUSTMENT PROCEDURE VHF ADJUSTMENTS (CONT’D) L14 PLL lock voltage adjustment CP1 PLL lock voltage check point Figure 6-4 VHF Adjustment Points 4. Press (Enter) again to select the second adjust channel. Key the transmitter and adjust for the displayed frequency. Unkey the transmitter and press (Enter) again to exit this function. puter adjust keys to set the following power. Unkey the transmitter. Repeat for the Low2 (Test Ch. 4) and Low1 (Test Ch. 5) power levels. High Power = 45 watts (Test Ch.
ADJUSTMENT PROCEDURE VHF ADJUSTMENTS (CONT’D) 2. Connect an RF signal generator to the antenna jack. Set the output for the channel frequency at a level of 3.2 µV (–97 dBm), modulated with 1 kHz at the following deviation: 2. Select the low power channel in the middle of the band (Test Ch. 5 - 160.050 MHz). On the computer screen, scroll to “MOD N” if setting narrow band deviation or “MOD W” if setting wideband deviation. Wideband (30 kHz) Models - 3.5 kHz Narrowband (12.5 kHz) Models - 1.75 kHz 3.
ADJUSTMENT PROCEDURE VHF ADJUSTMENTS (CONT’D) 6.5.3 BEEP TONE LEVEL 3. Connect an RF signal generator to the antenna jack. Set it to the channel frequency with an output modulated with 1 kHz at the following deviation: This adjustment sets the volume of the beep tone that is heard when keys are pressed and at other times (if it is enabled). The computer setup used in the preceding steps is not required for this adjustment. Proceed as follows: Wideband (30 kHz) Models - 3.5 kHz Narrowband (12.
ADJUSTMENT PROCEDURE UHF ADJUSTMENTS frequency. Unkey the transmitter and press (Enter) again to exit this function. NOTE: Perform the preliminary setup described in Section 6.2 before proceeding with these adjustments. 6.6 PLL ADJUSTMENT (UHF MODELS) 6.7.2 OUTPUT POWER ADJUST 1. Remove the bottom cover by removing four screws. Connect a DC voltmeter to check point CP1 shown in Figure 6-6. 1. Select the high power channel at the low end of the band (Test Ch. 3).
ADJUSTMENT PROCEDURE UHF ADJUSTMENTS (CONT’D) CP1 PLL lock voltage check point L23 PLL lock voltage adjustment L26 PLL lock voltage adjustment Figure 6-6 UHF Adjustment Points 4. Press the adjust keys on the computer so that the waveform appears as follows: 6.7.4 DTCS WAVEFORM ADJUST 1. Select the channel on the low end of the programmed for DTCS code 007N (Test Ch. 5). Set For Flat Waveform 2.
ADJUSTMENT PROCEDURE UHF ADJUSTMENTS (CONT’D) 6.8 RECEIVER ADJUSTMENTS (UHF MODELS) 6.8.2 SQUELCH ADJUST 6.8.1 BANDPASS FILTER ADJUST NOTE: The squelch level can also be set from the front panel as described in Section 3.3.6. 1. Select the channel on the low end of the band (Test Ch. 1). 1. Select the channel on the low end of the operating band (Test Ch. 2). channel with LB models and the 150.050 MHz channel with HB models. 2. Connect an RF signal generator to the antenna jack.
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PARTS LIST 7610 (VHF) Main Unit 5HIý1Rï &ìäë &ìäé &ìäç &ìäæ &ìäå &ìää &ëíí &ëíì &ëíë &ëíê &ëíé &ëíè &ëíç &ëíæ &ëíå &ëíä &ëìí &ëìì &ëìë &ëìê &ëìè &ëìç &ëìæ &ëìå &ëìä &ëëí &ëëì &ëëë &ëëê &ëëé &ëëè &ëëç &ëëæ &ëëå &ëëä &ëêí &ëêì &ëêë &ëêê &ëêé &ëêè &ëêç &ëêæ &ëêå &ëéí &ëéì 'HVFULSWLRQ 3DUWý1Rï &HUDPLFý&ìçíåý-%ýì(ýìíê.ð7ð$ 7DQWDOXPý(&67ì$<ëëè5 &HUDPLFý&ìçíåý-%ýì&ýìíé.7ð1 &HUDPLFý&ìçíåý-%ýì&ýìíé.7ð1 &HUDPLFý&ìçíåý&+ýì+ýìèí-ð7ð$ &HUDPLFý&ìçíåý-%ýì&ýìíé.7ð1 &HUDPLFý&ìçíåý-%ýì$ýëëé.
PARTS LIST 7610 (VHF) Main Unit 5HIý1Rï 'HVFULSWLRQ 3DUWý1Rï &ëäí &ëäì &ëäë &ëäê &ëäé &ëäè &ëäç &ëäæ &ëäå &ëää &HUDPLFý&ìçíåý-%ýì(ýìíê.ð7ð$ &HUDPLFý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPLFý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPLFý&ìçíåý-%ýì&ýìíé.7ð1 &HUDPLFý&ìçíåý-%ýì(ýìíê.ð7ð$ &HUDPLFý&ìçíåý-%ýì+ýìíë.ð7ð$ &HUDPLFý&ìçíåý-%ýì+ýìíë.ð7ð$ (OHFWURO\WLFýìçý09ýéæíý+& 7DQWDOXPý(&67í-<ìíç5 &HUDPLFý&ìçíåý-%ýì+ýìíë.
PARTS LIST 7610 (VHF) Main Unit 5HIý1Rï 'HVFULSWLRQ 3DUWý1Rï /ëæ &RLOý0/)ìçíå$ýì5í.
PARTS LIST 7610 (VHF) Main Unit 5HIý1Rï 5íéé 5íéè 5íéç 5íéæ 5íéå 5íéä 5íèí 5íèì 5íèé 5íèè 5íèä 5íçí 5íçì 5íçë 5íçê 5íçé 5íçç 5íçæ 5íçä 5íæì 5íæë 5íæê 5íæé 5íæè 5íæç 5íææ 5íæå 5íåì 5íåê 5íåé 5íåç 5íåæ 5íåä 5íäí 5íäì 5íäë 5íäê 5íäè 5íäç 5íäæ 5íäå 5íää 5ìíí 5ìíì 5ìíë 5ìíé 'HVFULSWLRQ 3DUWý1Rï 5HIý1Rï 5ìíè 5ìíç 5ìíæ 5ìíå 5ìíä 5ììí 5ììì 5ììë 5ììê 5ììé 5ììè 5ììç 5ììæ 5ììå 5ììä 5ìëí 5ìëì 5ìëë 5ìëê 5ìëé 5ìëè 5ìëç 5ìëæ 5ìëå 5ìëä 5ìêí 5ìêì 5ìêê 5ìêé 5ìêè 5ìêç 5ìêæ 5ìêä 5ìéí 5ìéì 5ìéë 5ìéê 5ìéè 5ìéç 5ìéæ 5ìéå 5ìéä
PARTS LIST 7610 (VHF) Main Unit 5HIý1Rï 5ìèé 5ìèè 5ìèç 5ìèæ 5ìèå 5ìèä 5ìçí 5ìçì 5ìçë 5ìçê 5ìçé 5ìçè 5ìçç 5ìçæ 5ìçå 5ìçä 5ìæí 5ìæì 5ìæë 5ìæé 5ìæè 5ìæç 5ìææ 5ìæå 5ìæä 5ìåí 5ìåì 5ìåë 5ìåê 5ìåé 5ìåè 5ìåç 5ìåæ 5ìåå 5ìåä 5ìäí 5ìäì 5ìäë 5ìäê 5ìäé 5ìäè 5ìäç 5ìäæ 5ìäå 5ìää 'HVFULSWLRQ 3DUWý1Rï 5HIý1Rï 5ëíí 5ëíì 5ëíë 5ëíê 5ëíé 5ëíè 5ëíç 5ëíæ 5ëíå 5ëíä 5ëìí 5ëìì 5ëìë 5ëìê 5ëìé 5ëìè 5ëìç 5ëìæ 5ëìå 5ëìä 5ëëí 5ëëì 5ëëë 5ëëê 5ëëç 5ëëæ 5ëëå 5ëëä 5ëêí 5ëêë 5ëêê 5ëêé 5ëêè 5ëêç 5ëêæ 5ëêå 5ëéí 5ëéì 5ëéë 5ëéê 5ëéè 5ëéç 5ëéæ
PARTS LIST 7610 (VHF) Main Unit 5HIý1Rï 'HVFULSWLRQ 7640 (UHF) Main Unit 3DUWý1Rï 5ëèë 5HVý(5-ê*(<-ýìèêý9ýõìèýNýRKPôý íëëðêäíçðìçè :ì :ç :æ -XPSHUý(5'6ë7í -XPSHUý(5-ê*(ý-3:ý9 &DEOHý23&ðéèê íëëðêäíçðåææ íëëðêäíçðìåè íëëðêäíçðåæå ;ì ;ê &U\VWDOý&5ðèæèýõìèïêý0+]ô 'LVFULPLQDWRUý&'%&$éèí&;ëé íëëðêäíçðåæä íëëðêäíçðçéë 5HIý1Rï 'HVFULSWLRQ 5HIý1Rï &íìé &íìè &íìç &íìæ &íìå &íìä &íëí &íëì &íëë 3DUWý1Rï æçéíýõ8+)ôý0$,1ý81,7 &ííì &ííë &ííê &ííè &ííç &ííæ &ííå &ííä &íìí &íìì &íìë &íìê &HUý*50éëðç
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï &íêì &íêë &íêê &íêé &íêè &íêç &íêæ &íêå &íêä &íéí &íéì &íéë &íéê &íéé &íéè &íéç &íéæ &íéå &íéä &íèí &íèì &íèë &íèé 'HVFULSWLRQ 3DUWý1Rï 5HIý1Rï &íèè &íèç &íèæ &íèå &íèä &íçí &íçì &íçë &íçê &íçé &íçè &íçç &íçæ &íçå &íçä &íæí &íæì &íæë &íæê &íæé &íæè &íæç &íææ &íæå &íæä &íåí &íåì &íåë &íåê &íåé &íåè &íåç &íåæ &íåå &íåä &íäí &íäì &HUDPLFý&ìçíåý-%ýì+ýìíë.
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï &íäé &íäè &íäç &íäæ &íäå &íää &ìíí &ìíì &ìíë &ìíê &ìíé &ìíè &ìíç &ìíæ &ìíå &ìíä &ììí &ììì &ììë &ììê &ììè &ììç &ììæ &ììå &ììä &ìëí &ìëì &ìëç &ìëæ &ìëå &ìëä 'HVFULSWLRQ 3DUWý1Rï 5HIý1Rï &ìêí &ìêì &ìêë &ìêê &ìêé &ìêè &ìêæ &ìêå &ìêä &HUDPLFý+0çí6-ý&+ýíêí'ýèíí9ý íëëðêäíçðäêë õéííðéêíý0+]ô &HUDPLFý+0çí6-ý&+ýíçí'ýèíí9ý íëëðêäíçðäêí õéèíðéæíý0+]ô &HUDPLFý+0çí6-ý&+ýíéí&ýèíí9ý íëëðêäíçðäëå õéæíðéäíý0+]ô &HUDPLFý+0çí6-ý&.
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï &ìèí &ìèì &ìèë &ìèê &ìèé &ìèè &ìèç &ìèæ &ìèå &ìèä &ìçí &ìçì &ìçë &ìçê &ìçé &ìçè &ìçç &ìçæ &ìçä &ìæí &ìæì &ìæë &ìæê &ìæé &ìæè &ìæç &ìææ &ìæå 'HVFULSWLRQ 3DUWý1Rï 5HIý1Rï &ìæä &ìåí &ìåê &ìåé &ìåè &ìåç &ìåæ &ìåå &ìåä &ìäí &ìäì &ìäê &ìäé &ìäè &ìäç &ìäæ &ìäå &ìää &ëíí &ëíì &ëíë &ëíê &ëíé &ëíè &ëíç &ëíæ &ëíå &ëíä &ëìí &ëìì &ëìë &HUDPLFý&ìçíåý8-ýì+ýìíí'ð7ð$ý íëëðêäíçðäìë õéííðéêíý0+]ô &HUDPLFý&ìçíåý8-ýì+ýíåí'ð7ð$ý íëëðêäíçðäíå õéèíðéæíý0+]ô &HUDPLFý&ìçíåý8-ýì+ýìèí-ð7
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï &ëëä &ëêí &ëêì &ëêë &ëêê &ëêé &ëêè &ëêç &ëêæ &ëêå &ëêä &ëéí &ëéì &ëéë &ëéê &ëéé &ëéè &ëéç &ëéæ &ëéå &ëéä &ëèí &ëèì &ëèë &ëèê &ëèé &ëèè &ëèç &ëèæ &ëèå &ëèä &ëçí &ëçì &ëçë &ëçê &ëçé &ëçè &ëçç &ëçæ &ëçå &ëçä &ëæí &ëæì &ëæë &ëæê &ëæé 'HVFULSWLRQ 3DUWý1Rï &HUDPLFý&ìçíåý-%ýì+ýìíë.ð7ð$ &HUDPLFý&ìçíåý-%ýì+ýìíë.ð7ð$ &HUDPLFý&ìçíåý-%ýì+ýìíë.ð7ð$ &HUDPLFý&ìçíåý-%ýì(ýìíê.ð7ð$ &HUDPLFý&ìçíåý-%ýì+ýìíë.ð7ð$ &HUDPLFý&ìçíåý-%ýì+ýìíë.ð7ð$ &HUDPLFý&ìçíåý-%ýì+ýìíë.
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï &êëç &êëæ &êëå &êëä &êêí &êêì &êêë &êêê &êêé &êêè &êêç &êêæ &êêå 'HVFULSWLRQ 3DUWý1Rï &êêä &êéí &êéì &êéë &êéê &êéé &êéè &êéç &êéæ &êéå &êéä &HUDPLFý&ìçíåý&+ýì+ýéæí-ð7ð$ íëëðêäíçðçíí &HUDPLFý&ìçíåý&+ýì+ýéæí-ð7ð$ íëëðêäíçðçíí &HUDPLFý&ìçíåý&+ýì+ýéæí-ð7ð$ íëëðêäíçðçíí &HUDPLFý&ìçíåý&+ýì+ýéæí-ð7ð$ íëëðêäíçðçíí &HUDPLFý&ìçíåý&+ýì+ýéæí-ð7ð$ íëëðêäíçðçíí &HUDPLFý&ìçíåý-%ýì+ýéæì.
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï /íë 'HVFULSWLRQ 3DUWý1Rï /ëæ /ëå /êí /êì /êë /êê /êé &RLOý/$ðêåëýõéäíðèìëý0+]ýRQO\ô íëëðêäíçðäèë &RLOý/$ðëêëýõRWKHUýEDQGVô íëëðêäíçðäèì &RLOý/$ðêåë íëëðêäíçðäèë &RLOýêê&6ð<çèè/<ðíë0 3êýõéäíð íëëðêäíçðäæë èìëý0+]ýRQO\ô &RLOýêê&6ð<çèè/<ðíê. 3êý íëëðêäíçðçæí õRWKHUýEDQGVô &RLOýêê&6ð<çèè/<ðíê.
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï 'HVFULSWLRQ 3DUWý1Rï 4êæ 4êå 4êä 4éí 4éì 4éë 4éé 4éè 4éç 7UDQVLVWRUý'7&ìéé(8ý7ìíæ 7UDQVLVWRUý'7&ìéé(8ý7ìíæ 7UDQVLVWRUý'7&ìéé(8ý7ìíæ )(7ýë6-ìééð*5ýõ7(åè5ô 7UDQVLVWRUý'7&êçê(.
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï 5íæé 5íæè 5íæç 5íææ 5íæå 5íæä 5íåí 5íåì 5íåë 5íåê 5íåé 5íåè 5íåç 5íåæ 5íäé 5íäè 5íäç 5íäæ 5íäå 5íää 5ìíí 5ìíì 5ìíë 5ìíê 5ìíé 5ìíè 5ìíç 5ìíæ 5ìíå 5ìíä 5ììí 5ììì 5ììë 5ììê 5ììé 5ììè 5ììç 5ììæ 5ììå 5ììä 5ìëí 5ìëì 'HVFULSWLRQ 3DUWý1Rï 5HIý1Rï 5ìëë 5ìëê 5ìëé 5ìëè 5ìëç 5ìëæ 5ìëå 5ìëä 5ìêí 5ìêì 5ìêë 5ìêê 5ìêé 5ìêè 5ìêç 5ìêæ 5ìêå 5ìêä 5ìéí 5ìéì 5ìéë 5ìéê 5ìéé 5ìéè 5ìéç 5ìéæ 5ìéå 5ìèí 5ìèì 5ìèë 5ìèê 5ìèé 5ìèè 5ìèç 5ìèæ 5HVý(5-ê*(<-ýëëìý9ýõëëíýýRKPô íëëðêäíçðëåå 5HVý(5-ê*
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï 5ìçå 5ìçä 5ìæí 5ìæë 5ìæê 5ìæé 5ìæè 5ìæç 5ìææ 5ìæå 5ìæä 5ìåí 5ìåì 5ìåë 5ìåé 5ìåè 5ìåç 5ìåæ 5ìåå 5ìåä 5ìäí 5ìäì 5ìäê 5ìäé 5ìäè 5ìäå 5ìää 5ëíé 5ëíè 5ëíç 5ëíæ 5ëíå 5ëíä 5ëìí 5ëìì 5ëìë 5ëìê 5ëìé 5ëìè 5ëìç 5ëìæ 5ëìå 5ëìä 5ëëí 5ëëì 5ëëë 'HVFULSWLRQ 3DUWý1Rï 5HIý1Rï 5ëëê 5ëëé 5ëëè 5ëëç 5ëëæ 5ëëå 5ëëä 5ëêí 5ëêì 5ëêë 5ëêê 5ëêé 5ëêè 5ëêç 5ëêæ 5ëêå 5ëêä 5ëéí 5ëéì 5ëéë 5ëéê 5ëéè 5ëéç 5ëéæ 5ëéå 5ëéä 5ëèí 5ëèì 5ëèë 5ëèé 5ëèè 5ëèæ 5ëèå 5ëèä 5ëçí 5HVý(5-ê*(<-ýìíéý9ýõìííýNýRKPô íë
PARTS LIST 7640 (UHF) Main Unit 5HIý1Rï 'HVFULSWLRQ Front Unit (All Models) 3DUWý1Rï 5ëæì 5ëæë 5ëæê 5ëæé 5ëæè 5ëæç 5ëææ 5ëæå 5ëæä 5HVý(5-ê*(<-ýìíêý9ýõìíýNýRKPô íëëðêäíçðìçê 5HVý(5-ê*(<-ýìíëý9ýõìýNýRKPô íëëðêäíçðìèé 5HVý(5-ê*(<-ýåëéý9ýõåëíýNýRKPô íëëðêäíçðäåç 5HVý(5-ê*(<-ýìíëý9ýõìýNýRKPô íëëðêäíçðìèé 5HVý(5-ê*(<-ýìíëý9ýõìýNýRKPô íëëðêäíçðìèé 5HVý(5-ê*(<-ýìííý9ýõìíýýRKPô íëëðêäíçðìêå 5HVý(5-ê*(<-ýéæìý9ýõéæíýýRKPô íëëðêäíçðìèí 5HVý(5-ê*(<-ýìíêý9ýõìíýNýRKPô íëëðêäíçðìçê 5HVý(5-ê*(<-ýåëêý9ýõåëýNýRKPô íëëðêä
PARTS LIST Front Unit (All Models) 5HIý1Rï 'HVFULSWLRQ 3DUWý1Rï &çè &çç &çæ &çä &æí &æì &æê &æé &ææ &æå &æä &åí &åë &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý-%ýì+ýìíë.ð7ð$ &HUDPý&ìçíåý-%ýì+ýìíë.ð7ð$ &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý&+ýì+ýéæí-ð7ð$ &HUDPý&ìçíåý-%ýì&ýìíé.
PARTS LIST Front Unit (All Models) 5HIý1Rï 5éì 5éë 5éê 5éé 5éè 5éç 5éæ 5éå 5éä 5èí 5èì 5èë 5èê 5èé 5èè 5èç 5èæ 5èå 5èä 5çí 'HVFULSWLRQ Chassis Parts 3DUWý1Rï 5çì 5çë 5çê 5çé 5çè 5çç 5çæ 5çå 5çä 5æí 5HVý(5-ê*(<-ýëæéý9ýõëæíýNýRKPô íëëðêäíçðìæä 5HVý(5-ê*(<-ýêêéý9ýõêêíýNýRKPô íëëðêäíçðìåí 5HVý(5-ê*(<-ýìëêý9ýõìëýNýRKPô íëëðêäíçðìçé $UUD\ý(;%ð9å9ýìíë-9 íëëðêäíçðæíí $UUD\ý(;%ð9å9ýìíë-9 íëëðêäíçðæíí $UUD\ý(;%ð9å9ýìíë-9 íëëðêäíçðæíí $UUD\ý(;%ð9å9ýìíë-9 íëëðêäíçðæíí $UUD\ý(;%ð9å9ýìíë-9 íëëðêäíçðæíí 5HVý(5-ê*(<-ý
MP7 (C) J1 (C) MP1 (C) MAIN UNIT (Bottom side) MP5 (C) MP6 (C) MP3 (M) MP7 (C) J5 (M) W3 (F) MP7 (C) J1 (F) W7 (M) MP7 (C) MP12 (M) MP1 (F) FRONT UNIT MP4 (M) MP11 (C) EP2 (F) MP1 (M) MP9 (C) DS1 (F) MP6 (C) MP2 (F) MP5 (M) SP1 (C) WS1 (C) MP2 (M) MP3 (C) MP2 (C) MP8 (C) MP13 (C) MP7 (C) MP4 (C) MP7 (C) MP7 (C) VHF (7610) EXPLODED VIEW 7-21 November 1998 Part No.
UHF (7640) EXPLODED VIEW ← FOLDOUT (VHF Exploded View) November 1998 Part No.
SECTION 8 - SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS COMMON LINE LINE RX LINE TX LINE DATA BUS LINE MAIN UNIT 5V 5V 5V 1 5V T1 2 5 DTCS REF OSC NWC T3 4 LOOP FIL PLL IC T4 REF BAL REF DISC x3 R5 BAL Q6 Q7.Q8 D7.D8 L14 SCK SO PLST UNLK 6 BUFF BUFF VCO C60.C61 IC2 A/D 7 5V T5 x1 or x2 T2 3 AF RIPPLE FIL Q10 TX/RX SW BUFF BUFF Q3 Q4 VCC T5 Q2 DRIVE AMP Q1 FWD PWR AMP IC1 VCC APC CTRL L23.L24 Q5 BPF 1 S t LO R5 R5 NOIS SD XTAL BPF IF AMP FI3.
VHF (7610) Transistor Basing Diagrams VHF (7610) Diode Basing Diagrams November 1998 Part No.
8-3 November 1998 Part No.
VHF (7610) MAIN BOARD TOP VIEW November 1998 Part No.
T5 R5 5V C16 470p R228 18k November 1998 Part No. 001-7600-001 R1 82k C1 5p C3 6p C8 12p(PMR only) C154 470p C298 22(LMR,L-band only) 10(Others) VDD C168 0.1 C293 0.1 IC6a NJM2902V C162 0.01 R124 100k C163 1 AFON AFONOP R126 10k C165 0.01 R127 100k R133 47k RMUT MOD BEEP a MMUT b c C169 0.01 C170 0.01 R211 2.2k C173 0.001 R137 1M REF DTCS BAL NWC 2 3 + 11 5 4 5.
DET AFOUT NWC HV N/W SW N/W SW 8V FI3 D12 IC11 IC11 R8V D13 FI1 IC6C,D J1 AF AMP AF SW AMP IC9 IC4A MCF AF SW D/A D8 D7 D3,D4,D5 BPF BPF TX/RX SW D9 BPF RF AMP BPF HPF FOR LPF LPF LPF Q2 IC12 FI2 Q5 B 5V RMUT R8V D10 Q3 R8V N/W SW TXC REV 46.
8-7 November 1998 Part No.
A N T E N N A JA C K W6 VCC GND EP12 M P 10 D 28 W2 J6 2 - G nd 1 - HV J6 W6 1 L1 B LK D 16 IC 5 MP8 W6 RED C 19 6 R 17 3 C 19 5 EP2 EP2 EP2 C 84 + C 95 C 99 C 94 C 33 7 C 98 W8 C 28 5 C 96 C 28 6 C 97 R 69 Q 18 C 81 Q 17 C 92 R 66 I R 11 3 R 65 IC 3 L1 6 C 10 1 L1 7 Q 14 C 10 0 O C 30 4 C 80 Q 13 C 74 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 - GND 5V HV M IC M U T E AFO NO P BEEPO U T RXM UTE DET AFO UT NC OPCS O P IN T SO SI SCK 12346578910 11 12 13 14
C1 C2 R4 47 C7 7p C9 C8 0.001 P -LML) P -MH, L -ML/MH) L -L) L -H) SC-1322( P -L) SC-1323(Other P ) SC-1236( L -L) SC-1237( L -ML) SC-1325( L -MH) SC-1326( L -H) IC4b R63 1M - 6 + 5 T4 R66 68k R273 820k TMUT Q16 DTC144EU C88 0.022 R68 2.2k C90 0.1 C85 0.001 R61 18k C89 0.001 R67 4.7k C91 4.7 C92 10 C286 C285 C97 C96 C344 C343 C95 C337 C188 4.7 R119 R122 10k R260 12k (MH only) 8.2k(Other) 1p(MH only) 3.5p(H only) R121 47 C138 0.001 L25 0.
DS1 UP V-UP 2 2 DS6 DS7 DS5 DS4 DS10 DS3 DS2 1 DS8 DN V-DN 8 J1 1 7 2 - Clone 4 - PTT 5 - MIC 7 - Hanger J1 (To Microphone) R60 P1 P0 P3 P2 DS9 PWR 1 - 8V 3 - AFO 5 - MICE 7 - GND DS1 VHF/UHF FRONT UNIT BOARD TOP VIEW R51 C3 R53 C1 R31 2 J2 C71 C59 C57 C52 C35 R41 C58 C24 C23 J2 (To Main Unit) 1 - GND 3 - LVIN 5 - SO 7 - SCK 9 - SO 11 - DIMIN 13 - EXPTT 15 - PWON 17 - DET 19 - PTTIN 21 - PTT 23 - OVP1 25 - OPV2 27 - OPV3 29 - OPT1 31 - OPT2 33 - OPT3 35 - SI 37 - AFO 3
DS1 LD-HU10140J SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 COM1 COM2 COM3 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 HANG CTDA2 CTDA1 CTDA0 BM 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 R67 100k 8V CPU5V OPINT OPCS BUSY BEEPOUT TONE BEEP DICSIN RFATT NOIS UNLK EXEN EXS
UHF (7640) Transistor Basing Diagrams UHF (7640) Diode Basing Diagrams • TRANSISTORS AND FET'S 2SB1132 R (Symbol: BARB) • DIODES 2SB1143 S 2SC4081 R (Symbol: BR) 2SC4215 O (Symbol: QO) 2SC4703 SE (Symbol: SE) 1SS302 (Symbol: C3) 1SS352 (Symbol: C1) 1T365 (Symbol: pink line)N) DA221 (Symbol: K) DAN202U (Symbol: N) 2SD1664 Q (Symbol: DA) 2SJ144 GR (Symbol: VG) 2SJ377 (Symbol: 4L) DAN204U (Symbol: K) HVU350 (Symbol: 4) MA77 (Symbol: 4B) MA111 (Symbol: 1B) MA713 (Symbol: MIN) B E C 2SC5107
