TDA7233D IC | EFJohnson 7780 guide

PARTS LIST

LOGIC UNIT

Ref No.	Description	Part No.

C 449	C1608 CH 1H 330J-T-A	022-3906-070
C 450	C1608 CH 1H 330J-T-A	022-3906-070
C 451	C1608 CH 1H 330J-T-A	022-3906-070
C 454	C1608 CH 1H 330J-T-A	022-3906-070
C 456	1 C2012 10V B	022-3907-034
D 101	MA2S111-(TX) diode	022-3906-050
D 102	MA2S111-(TX) diode	022-3906-050
D 103	MA2S111-(TX) diode	022-3906-050
D 104	MA2S111-(TX) diode	022-3906-050
D 105	MA2S111-(TX) diode	022-3906-050
D 301	MA2S077-(TX) diode	022-3907-027
D 302	MA2S111-(TX) diode	022-3906-050
D 305	MA8056 M diode	022-3906-049
D 306	MA8056 M diode	022-3906-049
D 307	MA8056 M diode	022-3906-049
D 308	MA8056 M diode	022-3906-049
D 309	MA2S111-(TX) diode	022-3906-050
D 310	MA2S111-(TX) diode	022-3906-050
D 311	MA8056 M diode	022-3906-049
D 312	MA8160 (TX) diode	022-3907-025
D 313	MA8056 M diode	022-3906-049
D 401	MA2S111-(TX) diode	022-3906-050
D 402	MA2S111-(TX) diode	022-3906-050
D 403	MA8039-L diode	022-3906-251
EP 1	B-5185D #2176-2D logic PC bd	022-3907-005
	(10-key)
	B-5185D #2176-3D logic PC bd	022-3907-085
	(3-key)
EP 2	B-3828B (#1125-3A) flex circuit	022-3906-002
IC 101	MC33172D IC	022-3906-018
IC 102	MC33172D IC	022-3906-018
IC 103	TC7S66FU IC	022-3906-020
IC 104	TDA7233D IC	022-3906-530
IC 105	TDA7233D IC	022-3906-530
IC 106	TDA7233D IC	022-3906-530
IC 107	MC33172D IC	022-3906-018
IC 110	TC4W53FU (TE12L) IC	022-3907-010
IC 112	MC33172D IC	022-3906-018
IC 113	MC33172D IC	022-3906-018
IC 114	MC33172D IC	022-3906-018
IC 115	TC7S04FU IC	022-3907-011
IC 201	TC75S54F	022-3907-013

November 1999

Part No. 001-7780-500

Ref No.	Description	Part No.

IC 202	NJM2904V-TE1 IC	022-3906-016
IC 203	TC4W53FU (TE12L) IC	022-3907-010
IC 204	TC4W66FU(TE12L) IC	022-3906-022
IC 205	NJM2904V-TE1 IC	022-3906-016
IC 206	MC33172D IC	022-3906-018
IC 208	MC33111D	022-3906-311
IC 209	AD8403ARU50	022-3907-014
IC 210	TC4W53FU (TE12L) IC	022-3907-010
IC 303	PCD3312CT IC	022-3906-024
IC 304	X25128SI-2.7T6 IC	022-3907-012
IC 305	S-80842ALNP-EA6	022-3907-009
IC 306	HD64F2144FA20 (FX-2176)	022-3907-017
IC 309	TC7W32FU (TE12L) IC	022-3906-531
IC 401	TK11250BM	022-3907-018
IC 402	TK11250BM	022-3907-018
IC 403	S-81230SG-QB-T1 IC	022-3906-532
J 1	AXK5S30245P	022-3907-047
J 2	52396-0990	022-3906-130
J 3	52207-0590	022-3906-129
J 4	AXK520145P	022-3907-045
MP 1	Ferrite sheet (C) next to IC306	022-3906-244
MP 3	2176 CPU shield	022-3907-064
Q 101	DTC144EE TL transistor	022-3906-329
Q 102	2SA1576 S transistor	022-3906-029
Q 103	DTC144EE TL transistor	022-3906-329
Q 104	DTC144EE TL transistor	022-3906-329
Q 105	DTC144EE TL transistor	022-3906-329
Q 106	2SB798-T2 DK transistor	022-3907-021
Q 107	2SC4081 T107 S transistor	022-3906-031
Q 108	DTC144EE TL transistor	022-3906-329
Q 109	DTC144EE TL transistor	022-3906-329
Q 110	UMG2N TL diode	022-3906-250
Q 111	DTC144EE TL transistor	022-3906-329
Q 112	UMG2N TL diode	022-3906-250
Q 201	DTC144EE TL transistor	022-3906-329
Q 301	2SC4081 T107 S transistor	022-3906-031
Q 302	DTC144EE TL transistor	022-3906-329
Q 401	2SC4081 T107 S transistor	022-3906-031
Q 402	2SJ316-TD diode	022-3906-041
Q 403	2SJ316-TD diode	022-3906-041
Q 404	UMD6 TL diode	022-3907-023
Q 405	UMD6 TL diode	022-3907-023

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EFJohnson 7780 service manual TDA7233D IC

Contents

7780 Page Page Table of Contents Table of Contents CONT’D List of Tables List of Figures General Information Scope of Manual Equipment Description Part Number Breakdown AccessoriesFactory Customer Service Transceiver Identification Toll-Free 800 AccessoriesAccessory Factory Returns Internet Home Intrinsically Safe Information Replacement PartsDefinitions Intrinsically Safe and Nonincendive Ratings Temperature Code T3CPossible Ignition Sources Classification of Hazardous Areas and Atmospheres Typical Hazard Group Class Accessing PC BoardsMaterial Classification Area Classification Removing RF Unit Removing Logic Unit Specifications General Transceiver Operation FeaturesControls and Display TX Indicator Red Indicates when the transmitter is keyed Low-Battery Indicator Amber Front Panel Keys Full Keypad Model DisplayDisplay General Operation Turning Power on and Setting VolumeOption Switches Backlight Function Conv Option Switch FunctionsSee Tone ENABLE/DISABLE Scanning Conventional and SMARTNET/ Smartzone Operation Display Mode Selection Conventional FeaturesMonitoring Before Transmitting Busy Channel Lockout Monitor ModeCall Guard Squelch Power Output Select Penalty TimerConversation Timer Conventional Mode Scanning Priority Channel Sampling DTMF/ANI Signaling Standard Conventional Calls Standard Group Calls SMARTNET/SMARTZONE FeaturesViewing Unit ID Enhanced Private Conversation Calls Transceiver Operation Private Conversation II Calls Telephone Calls Call Alert Messaging Emergency Alarm and CallSending Status Conditions SMARTNET/SMARTZONE Scanning Failsoft OperationDynamic Regrouping Supervisory Tones Menu Description Keypad ProgrammingZone Change Parameter System Parameters Channel Change ParameterChannel Parameters Transceiver Programming Programming SetupPctrunk Software Installation Computer Description Programming File Types Connecting RPI to Computer and TransceiverStarting and Exiting Help Files File Size Indication Screen Pop-Up Buttons and File Size IndicatorProgramming Procedure Creating and Displaying Systems Menu Commands Menu Bar Systems Menu Radio Type MenuDownload Menu Upload Menu Window Menu Band DefaultsRADIO-WIDE Parameter Screens Zones Modify List Screen Radio Wide Scan ListRadio-Wide Scan List Screen Assign Function Buttons Full Spectrum CC Scan RADIO-WIDE Conventional ScreenRADIO-WIDE SMARTNET/SMARTZONE Screen Hot Dtmf Programming Conventional Systems and Channels Adjustable ParametersRADIO-WIDE Portable Options Screen Conventional System General Screen Keypad Editing TimersConventional System Modify Scan List Screen Scan List Button Setting UP Conventional Channels Scan TimersPriority Channel Selection Conventional Channel Screen Parameters Selected Channel Channel Type Transmit PowerSignaling Tx Time-Out ISW Delay Time Restricted AccessTime-Out Timer Splinter Channels Phone Interconnect SMARTNET/SMARTZONE System Other ID’S ScreenSMARTNET/SMARTZONE System Phone Interconnect Screen Private Call SMARTNET/SMARTZONE System Talk Groups Screen SMARTNET/SMARTZONE System Emergency Settings ScreenEmergency Alarm Failsoft Channel Trunking Phone List Screen SMARTNET/SMARTZONE System Lists ScreensMessage Aliasing Screen Announcement Groups Screen Control Channels Screen Trunking Call List Screen Status Aliasing Screen Setting UP SMARTNET/SMART- Zone ChannelsSMARTNET/SMARTZONE Channel Screen Parameters SMARTNET/SmartZone Channel Screen Other Screen Parameters Call Guard CTCSS/DCS Codes and Tones Recommended Tone Call Guard Codes Freq MHz Channels MHz Channels MHz Channels MHz Channels MHz Channels MHz Channels Circuit Description Power Switching and RegulationPower Switching Synthesizer Description Synthesizer Chip IC1 VCO and Tcxo ModulationCharge Pump Q1, Q2, Loop Filter RF Amplifier Q1, First Mixer Q2 Receiver Circuit DescriptionIf Amplifier Q2, LIMITER/DETECTOR IC3 Transmitter Description Antenna Switch and LOW-PASS FilterSquelch Circuit IC4A/B, IC5A Amplifier Q9, Driver Q8 Control Logic and Display Receive Audio Processing Microprocessor IC306 Pin Descriptions Pin Port Name Input or Description Active High Output Hvfulswlrq Receive and Transmit Data Processing Audio Amplifier IC104-IC106Receive Data FILTER/DETECTOR IC102A/B, IC107A/B Transmit Data Filter IC206B/ IC206A Transmit Audio Processing LOW-PASS Filter IC205A/B Smartnet Data Processing Power Setting Operating Time Battery Pack and Charger InformationBattery Pack Function Fahrenheit Celsius Battery Pack and Charger Information Alignment Procedure and Performance Tests Test Setup Tune Software Hqhudo Mm/3/32 Mm/1/8 Phone Jack Preliminary Setup Main Pctune Screen High Power Level = 3.0 watts Low Power Level = 1.0 watt Transmit Frequency and PowerTransmit Power Adjustment Screen Modulation Balance Audio Deviation Squelch AdjustRssi Adjust Data Deviation Performance Tests Receiver Performance Tests Transmit Frequency Power OutputTransmitter Performance Tests Transmit Modulation This page intentionally left blank Chassis Parts Parts ListDisplay Assembly Ref No Description KEY Assembly Display Assembly KEY Assembly If AssemblyIf Assembly PLL Assembly RF Unit RF Unit NJM2904V-TE1 IC RF Unit Logic Unit Logic Unit TDA7233D IC Logic Unit 200K ERJ3GE MP35 MP18 MP25 KEY Front Panel EP2 EP1 MP32 MP33 MP27 MP34 MP28 MP29 MP23 MP22 MP30 MP24 MP26 MP18 PLL Board TOP View Schematic Diagrams and Component LayoutsPLL Board Bottom View If Board TOP View If Board Bottom View Transceiver Block Diagram RF Unit RF Board TOP View MIC RF Board Schematic If AMP Logic Board TOP View HD1 Logic Board Schematic Receive Audio Processing Display Board Bottom View GND KEYR3 KEYR2 KEYR1 KEYR0 KEYS3 KEYS2 KEYS1 KEYS0 GND Display Board Schematic DS3 DS4 DS5 KEY Board Front View KEY Board Back View KEY Board Schematic S S R R R R Scan HC2 HC7 HC8 HC3 Schematic Diagrams and Component Layouts