EFJohnson 7780 service manual KEY Assembly, Display Assembly

Page 86

PARTS LIST

DISPLAY ASSEMBLY

Ref No.	Description	Part No.

IC 1	LC75834W	022-3907-015
J 1	52204-2990	022-3906-128
J 2	AXN820735	022-3906-132
MP 01 10-key front panel (plastic)		022-3907-058
	3-key front panel (plastic)	022-3907-087
MP 04 10-key rubber keypad		022-3907-077
	3-key rubber keypad	022-3907-089
MP 06 1125 sp rubber-1 (10-key)		022-3906-270
	1121 mic seal-1 (3-key)	022-3907-090
MP 07	1125 LCD holder	022-3906-227
MP 08	1591 front plate-1	022-3907-059
MP 09	Screw ph no.0b01.4x4.5ni	022-3906-266
MP 10	Screw ph b0 #.0-3 m1.4x3.5 blk	022-3906-214
MP 11	1125 front seal	022-3906-239
MP 12	Screw b0 2x4 ni (bt)	022-3906-213
MP 15	1125 display plate (10-key)	022-3906-243
	1591 display plate (3-key)	022-3907-088
MP 16	Sponge (cp) srcn	022-3906-269
Q 1	2SA1576 S transistor	022-3906-029
Q 2	2SA1576 S transistor	022-3906-029
Q 3	2SA1576 S transistor	022-3906-029
Q 4	2SA1576 S transistor	022-3906-029
R 01	ERJ3GEYJ 103V resistor	022-3906-163
R 02	EFJ3GEYJ 151 V resistor	022-3906-145
R 03	ERJ3GEYJ 332 V resistor	022-3906-159
R 07	NTCCM16084LH 473KC resistor	022-3907-053
R 08	ERJ3GEYJ 473 V resistor	022-3906-171
R 09	ERJ3GEYJ 104 V resistor	022-3906-175
R 11	ERJ3GEYJ 473 V resistor	022-3906-171
R 12	ERJ3GEYJ 102 V resistor	022-3906-154
R 13	ERJ3GEYJ 473 V resistor	022-3906-171
R 14	ERJ3GEYJ 102 V resistor	022-3906-154
R 15	ERJ3GEYJ 473 V resistor	022-3906-171
R 16	ERJ3GEYJ821V resistor	022-3906-153
R 17	EFJ3GEYJ 151 V resistor	022-3906-145

Ref No.	Description	Part No.

3-KEY ASSEMBLY

EP 1	B-5188B #2176-3D (3-key PC bd)	022-3907-091
C 1	C1608 CH 1H 330J-T-A	022-3906-070
C 2	C1608 CH 1H 330J-T-A	022-3906-070
C 3	C1608 CH 1H 330J-T-A	022-3906-070
C 4	C1608 CH 1H 330J-T-A	022-3906-070
C 5	C1608 CH 1H 330J-T-A	022-3906-070
DS 1	LN1371G-(TR) display/LED	022-3906-098
DS 2	LN1371G-(TR) display/LED	022-3906-098
DS 3	LN1371G-(TR) display/LED	022-3906-098
DS 4	LN1371G-(TR) display/LED	022-3906-098
J 1	AXN720535	022-3906-131
MC 1	EM-123H microphone	022-3906-195
Q 1	2SA1576 S transistor	022-3906-029
R 1	ERJ3GEYJ 333 V resistor	022-3906-169
R 2	ERJ3GEYJ 104 V resistor	022-3906-175
R 3	ERJ3GEYJ 104 V resistor	022-3906-175
R 4	ERJ3GEYJ 104 V resistor	022-3906-175
R 5	ERJ3GEYJ 104 V resistor	022-3906-175
R 6	ERJ3GEYJ 221 V resistor	022-3906-288
R 8	ERJ3GEYJ 103V resistor	022-3906-163
R 10	ERJ3GEYJ 121V resistor	022-3906-144
R 11	ERJ3GEYJ 121V resistor	022-3906-144
R 12	ERJ3GEYJ 103V resistor	022-3906-163
SP 1	EAS3P127J speaker	022-3906-058
W 1	ERDS2T0 resistor to spkr	022-3906-877
W 2	ERDS2T0 resistor to spkr	022-3906-877
W 3	OPC-677	022-3907-069
W 4	OPC-677	022-3907-069

10-KEY ASSEMBLY

R 18 12K ERJ3GE resistor

022-3906-164

EP 1

C1 C 2 C 3 C 4

B-5187C #2176-2D (10-key PC bd)

C1608 CH 1H 330J-T-A

C1608 CH 1H 330J-T-A

C1608 CH 1H 330J-T-A

C1608 CH 1H 330J-T-A

022-3907-007

022-3906-070

022-3906-070

022-3906-070

022-3906-070

November 1999
Part No. 001-7780-500	7-2

Image 86

Contents 7780 Page Page Table of Contents Table of Contents CONT’D List of Tables List of FiguresGeneral Information Scope of Manual Equipment DescriptionPart Number Breakdown AccessoriesFactory Customer Service Transceiver IdentificationToll-Free 800 AccessoriesAccessory Factory ReturnsDefinitions Replacement PartsInternet Home Intrinsically Safe Information Intrinsically Safe and Nonincendive Ratings Temperature Code T3CPossible Ignition Sources Classification of Hazardous Areas and AtmospheresTypical Hazard Group Class Accessing PC BoardsMaterial Classification Area ClassificationRemoving RF Unit Removing Logic UnitSpecifications GeneralControls and Display FeaturesTransceiver Operation TX Indicator Red Indicates when the transmitter is keyed Low-Battery Indicator AmberDisplay DisplayFront Panel Keys Full Keypad Model General Operation Turning Power on and Setting VolumeOption Switches BacklightSee Option Switch FunctionsFunction Conv Tone ENABLE/DISABLE ScanningConventional and SMARTNET/ Smartzone Operation Monitoring Before Transmitting Conventional FeaturesDisplay Mode Selection Call Guard Squelch Monitor ModeBusy Channel Lockout Power Output Select Penalty TimerConversation Timer Conventional Mode ScanningPriority Channel Sampling DTMF/ANI Signaling Standard Conventional CallsStandard Group Calls SMARTNET/SMARTZONE FeaturesViewing Unit ID Enhanced Private Conversation CallsTransceiver Operation Private Conversation II Calls Telephone Calls Call Alert Sending Status Conditions Emergency Alarm and CallMessaging Dynamic Regrouping Failsoft OperationSMARTNET/SMARTZONE Scanning Supervisory Tones Zone Change Parameter Keypad ProgrammingMenu Description Channel Parameters Channel Change ParameterSystem Parameters Transceiver Programming Programming SetupPctrunk Software Installation Computer DescriptionProgramming File Types Connecting RPI to Computer and TransceiverStarting and Exiting Help FilesFile Size Indication Screen Pop-Up Buttons and File Size IndicatorProgramming Procedure Creating and Displaying SystemsMenu Commands Menu BarSystems Menu Radio Type MenuDownload Menu Upload Menu Window MenuBand DefaultsRADIO-WIDE Parameter Screens ZonesModify List Screen Radio Wide Scan ListRadio-Wide Scan List Screen Assign Function ButtonsFull Spectrum CC Scan RADIO-WIDE Conventional ScreenRADIO-WIDE SMARTNET/SMARTZONE Screen Hot DtmfProgramming Conventional Systems and Channels Adjustable ParametersRADIO-WIDE Portable Options Screen Conventional System General ScreenKeypad Editing TimersConventional System Modify Scan List Screen Scan List ButtonPriority Channel Selection Scan TimersSetting UP Conventional Channels Conventional Channel Screen Parameters Selected ChannelChannel Type Transmit PowerSignaling Tx Time-OutISW Delay Time Restricted AccessTime-Out Timer Splinter ChannelsPhone Interconnect SMARTNET/SMARTZONE System Other ID’S ScreenSMARTNET/SMARTZONE System Phone Interconnect Screen Private CallSMARTNET/SMARTZONE System Talk Groups Screen SMARTNET/SMARTZONE System Emergency Settings ScreenEmergency Alarm Failsoft ChannelMessage Aliasing Screen SMARTNET/SMARTZONE System Lists ScreensTrunking Phone List Screen Announcement Groups Screen Control Channels ScreenTrunking Call List Screen SMARTNET/SMARTZONE Channel Screen Parameters Setting UP SMARTNET/SMART- Zone ChannelsStatus Aliasing Screen SMARTNET/SmartZone Channel Screen Other Screen ParametersCall Guard CTCSS/DCS Codes and Tones Recommended Tone Call Guard Codes FreqMHz Channels MHz Channels MHz Channels MHz Channels MHz Channels MHz Channels Circuit Description Power Switching and RegulationPower Switching Synthesizer DescriptionCharge Pump Q1, Q2, Loop Filter VCO and Tcxo ModulationSynthesizer Chip IC1 If Amplifier Q2, LIMITER/DETECTOR IC3 Receiver Circuit DescriptionRF Amplifier Q1, First Mixer Q2 Transmitter Description Antenna Switch and LOW-PASS FilterSquelch Circuit IC4A/B, IC5A Amplifier Q9, Driver Q8Control Logic and Display Receive Audio ProcessingMicroprocessor IC306 Pin Descriptions Pin Port Name Input or Description Active High OutputHvfulswlrq Receive Data FILTER/DETECTOR IC102A/B, IC107A/B Audio Amplifier IC104-IC106Receive and Transmit Data Processing Transmit Data Filter IC206B/ IC206A Transmit Audio ProcessingLOW-PASS Filter IC205A/B Smartnet Data ProcessingPower Setting Operating Time Battery Pack and Charger InformationBattery Pack Function Fahrenheit CelsiusBattery Pack and Charger Information Alignment Procedure and Performance Tests Test SetupTune Software Hqhudo Mm/3/32 Mm/1/8 Phone JackPreliminary Setup Main Pctune ScreenHigh Power Level = 3.0 watts Low Power Level = 1.0 watt Transmit Frequency and PowerTransmit Power Adjustment Screen Modulation BalanceAudio Deviation Squelch AdjustRssi Adjust Data DeviationPerformance Tests Receiver Performance TestsTransmit Frequency Power OutputTransmitter Performance Tests Transmit ModulationThis page intentionally left blank Chassis Parts Parts ListDisplay Assembly Ref No DescriptionKEY Assembly Display AssemblyIf Assembly If AssemblyKEY Assembly PLL Assembly RF UnitRF Unit NJM2904V-TE1 IC RF Unit Logic Unit Logic Unit TDA7233D IC Logic Unit 200K ERJ3GE MP35 MP18 MP25 KEY Front Panel EP2EP1 MP32 MP33 MP27 MP34 MP28 MP29 MP23 MP22 MP30 MP24 MP26 MP18 PLL Board Bottom View Schematic Diagrams and Component LayoutsPLL Board TOP View If Board TOP View If Board Bottom ViewTransceiver Block Diagram RF UnitRF Board TOP View MICRF Board Schematic If AMPLogic Board TOP View HD1Logic Board Schematic Receive Audio ProcessingDisplay Board Bottom View GND KEYR3 KEYR2 KEYR1 KEYR0 KEYS3 KEYS2 KEYS1 KEYS0 GNDDisplay Board Schematic DS3 DS4 DS5KEY Board Front View KEY Board Back ViewKEY Board Schematic S S R R R RScan HC2 HC7 HC8 HC3 Schematic Diagrams and Component Layouts