EFJohnson 764X, 761X service manual Key and Display Assign Screen Description, Key Description

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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.

Parameter

Key

 

 

 

Description

 

Label

 

 

 

 

 

 

 

 

 

 

 

Null

---

No function (key disabled).

 

CH Up

CH UP

Scroll up or down through the programmed channels. Holding the key down causes the function to

CH Down

CH DN

repeat.

 

 

 

 

 

 

 

 

MR-CH 1

CH 1

Directly selects Channels 1, 2, 3, or 4, respectively.

 

MR-CH 2

CH 2

 

 

 

 

 

MR-CH 3

CH 3

 

 

 

 

 

MR-CH 4

CH 4

 

 

 

 

 

 

 

 

 

 

 

Bank

BANK

Toggles the current bank between Bank 1 and Bank 2. This key can be programmed only if the “MR-

 

 

CH Bank/Free” parameter in this screen is programmed “Bank”.

 

 

 

 

 

 

 

Scan A

SCAN

Pressing this key toggles scanning on and off. In addition, pressing and holding the key enables the

Scan B

 

scan list select mode. The current scan list is indicated, and it is changed by pressing the up/down

Start/Stop

 

 

 

 

keys. Either the Scan A or Scan B mode or both can be programmed. Operation is as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

Scan A

 

 

 

Power-On Scan “Off” (see Table 4-5)- It starts and stops scanning with no auto restart. If the trans-

 

 

mitter is keyed during scanning, the scan mode is exited.

 

 

 

Power-On Scan “On” - It stops scanning only until the Auto Reset Timer expires (see Table 4-7). If

 

 

the transmitter is keyed during scanning, scan automatically resumes when the Auto Reset Timer

 

 

expires.

 

 

 

 

 

 

Scan B

 

 

 

Power-On Scan “Off” or “On” - It starts and stops scanning with auto restart. If the transmitter is

 

 

keyed during scanning, scan automatically resumes when the Auto Reset Timer expires.

 

 

 

 

 

 

Scan Add/

TAG

Scan list programming key. Pressing this key changes the scan list status of the current channel in the

Delete

 

current scan list (see Section 3.6.2).

 

 

 

 

 

 

 

Prio A

PRI A

Pressing a Prio A key selects the Priority A channel, and pressing a Prio B key selects the Priority B

Prio A (Re)

PRI A

channel. Pressing a Prio A (Rewrite) key also selects the Priority A channel. In addition, if it is held, the

Prio B

PRI B

current channel is made the Priority A channel. Priority channel sampling is programmed in the Scan

 

 

List screen (see Table 4-5).

 

 

 

 

 

 

 

Moni

MONI

Toggles the monitor mode on and off. This mode deactivates the Call Guard (CTCSS/DTCSS) or

(Audi)

 

2-tone mute functions (see Section 3.4.4). Pressing and holding this key unsquelches the receiver for as

 

 

long as it is held.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

November 1998

 

 

4-7

Part No. 001-7600-001

Image 32
Contents 761x VHF 764x UHF Conventional Mobile Conventional FM TWO-WAY Radio Table of Contents Table of Contents CONT’D Schematic Diagrams and Component Layouts General Information 75xx Accessories AccessoryToll-Free 800 Factory ReturnsReplacement Parts Internet HomeThis page intentionally left blank VHF and 7640 UHF Mobile Specifications GeneralGeneral Information Installation and Disassembly Transceiver InstallationInstalling Mounting Bracket Installing Microphone HangerPower Cable Installation Cable InstallationPower Cable Fuses Changing 20-Ampere Power Cable FusesUsing AN External Speaker Accessory Cable InstallationRemove shield E Transceiver DisassemblyRemoving PC Board 2-TONE/5-TONE Module Installation Installation ProcedureSetting 5-Tone Deviation 2 2-TONE ProgrammingInstallation and Disassembly Features OperationBasic Operation Controls and DisplayTransceiver Back Panel Direct Selection The F1-F4 Receiving and Placing Calls TIME-OUT Timer Programmable FunctionsOption Key Programmable Functions Function Key Label Description Section NoMonitor Mode Select Output Power SelectCall Guard Tone Select Channel SelectChannel Scan Priority Channel Sampling Programming Setup Section ProgrammingProgramming Cables Programming SoftwareStarting the Program Special Keys and FunctionsMenu Flow File MenuScreen Menu Program MenuPrint Menu Model MenuParameter Description Bank Select Setup MenuMemory Channel Screen Description LMR Models Timer Ch AtrFrequency Rx/TxAuto Reset LockoutScan ToneKey and Display Assign Screen Description Key DescriptionKey Description Label RF Power Dtmf Autodial Screen DescriptionSelection Bank/FreeParameter Description Continuous Tone Screen DescriptionScan Function Screen Description Stop Timer 2-Tone Code Channel Screen DescriptionResume Auto CHEXO Timer Timer Auto TxAuto Tx StunCommon Screen Description Expert Screen Description Unique PMR European Screens Unique PMR ScreensCloning Programming ONE Transceiver with Another Memory Channel Screen PMR Models This page intentionally left blank VHF 7610 Circuit Description VHF Receiver CircuitAudio Amplifier Circuit Receiver Mute CircuitPower Amplifier Module VHF Transmitter CircuitMicrophone Amplifier Circuit Modulation CircuitPLL Circuit APC CircuitVHF PLL Circuit Pin Port Description VHF IC PIN DescriptionsLine Description VHF I/O Expander IC5 Main Unit PinVHF Port Expander IC11 Main Unit Pin Port Description NameUHF 7640 Circuit Description UHF Receiver CircuitSecond if System IC1 UHF UHF Transmitter Circuit PLL Circuit UHF UHF PLL CircuitUHF Power Supply UHF CPU IC1 Port AllocationUHF I/O Expander IC12 Main Unit UHF Port Expander IC13 Main UnitAdjustment Procedure Test SetupSuggested Test Equipment Equipment Grade and RangeTest Channels Test CableUHF Test Frequencies COMPUTER-AIDED TuningVHF Test Frequencies VHF Adjustments VHF AdjustmentsPreliminary Setup PLL Adjustment VHF ModelsFM Deviation Adjust VHF Adjustments CONT’DOutput Power Adjust Dtcs Waveform Adjust Receiver Adjustments VHF ModelsBandpass Filter Adjust Squelch AdjustBeep Tone Level Adjustment Beep Tone LevelTransmitter Adjustments UHF Models UHF AdjustmentsPLL Adjustment UHF Models UHF Adjustments CONT’D UHF Adjustment PointsUHF Adjustments CONT’D Receiver Adjustments UHF Models Parts List Æçìíýõ9+ôý0$,1ý81,7Íäç HUDPLFý&ìçíåý-%ýì+ýìíë.ð7ð$ Íëëðêäíçðíçí Íäæ Ìää HUDPLFý&ìçíåý-%ýì&ýìíé.7ð1 Íëëðêäíçðçìé Ëíí Ëäí HUDPLFý&ìçíåý-%ýìýìíê.ð7ð$ Íëëðêäíçðíçê Ëäì RLOý0/ìçíå$ýì5í.ð7 Íëëðêäíçðçèç 03ì Ýìäëëý9&2ýFDVH 5íéé 5HVý5-ê*-ýìííý9ýõìíýRKPô Íëëðêäíçðìêå 5íéè 5ìèé 5HVý5-ê*-ýìíéý9ýõìííýNýRKPô Æçéíýõ8+ôý0$,1ý81,7 Íêì HUDPLFý&ìçíåý-%ýì+ýìíë.ð7ð$ Íëëðêäíçðíçí Íêë Íäé HUDPLFý+0çí6-ý&+ýíêíýèíí9ý Õéäíðèìëý0+ô Ìèì 5HIý1Rï Êëç Íëëðêäíçðäèë 4éì 7UDQVLVWRUý7&êçê.ý7ìéæ 5íæé 5ìçå 5HVý5-ê*-ýìíéý9ýõìííýNýRKPô 5217ý81,7 Õ9+ý$1ý8+ý02/6ô =HQHUý0$åíèìð0ýõ7ô Æçìíýõ9+ôý&+$66,6ý3$576 VHF 7610 Exploded View Front UnitUHF 7640 Exploded View Schematic Diagrams and Component Layouts VHF 7610 Block DiagramMain Unit Front UnitVHF 7610 Transistor Basing Diagrams Foldout → VHF 7610 Main Board TOP View VHF 7610 Main Board Schematic VHF Main UnitUHF 7640 Block Diagram UHF 7640 Main Board Bottom View UHF 7640 Main Board TOP View J4 T o O p tion al Un itUHF 7640 Main Board Schematic VHF/UHF Front Unit Board TOP View VHF/UHF Front Unit Board Bottom ViewVHF/UHF Front Unit Schematic UHF 7640 Transistor Basing Diagrams