EFJohnson 001-9800-001, 001-9800-200, 9800 SERIES, 984X SERIES, 988X SERIES, 989X SERIES 800/900 MHz RF Board Schematic

6-24 February 2001

Part No. 001-9800-001

800/900 MHz RF Board Schematic

C621

L603

C625

C620

C614

L604 L602

J601

C634

C635

C636

C643

L606

R605

CR602

C650

R609

R610

EP601

R608

L601

C613

C612

R607 C608

C638

C637

C615

Q601 E

C617

C646

C640

R613

R601

R600

C611

C653

J600

CR600 P1

C630

C628

R603

C629 CR601

R602

EP602

L607

C616

C627

C601

C600

C642

C609

C603

C607

R611

C652

C651

C648

C619

C626

C618

C623

C624

C622

R604 Q602

R606 C604 C602

CR603

C649

C655

(470-512 MHz Only)

(470-512 MHz)

(430-470 MHz) C646

C119

L102

C124

R112

R108

C108

R109

C113

R110

R107

C100

C101

R101

L100

C116

C104

R105

C102

C103

C118

L101

L103

L107

C122

R113

W104

W115

C123

W100

W105

W111 W109 W112 W110 W113 W114

W106

W101W108

W102

W107

CR106

CR103

CR101

W103

R111

C114

Q101

BC105

R100

Q102

R114

C106

C115

C112

R103

CR105

C110

C111

L106

C109

L105

C107

CR104

C120

R102

Q100

VCO BOARD LAYOUT (430-512 MHZ)

PA BOARD LAYOUT (25W, 430-512 MHZ)

Contents

Main SERVICE MANUAL 984XSERIES (UHF) 988 989XSERIES (900 MHZ) 98xx-SERIES FM TWO-WAY RADIO SERVICE MANUAL TABLE OF CONTENTS 1 GENERAL INFORMATION 2 INSTALLATION 3 CIRCUIT DESCRIPTION TABLE OF CONTENTS (CONTD) 4 SERVICING 5 PARTS LIST 6 SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS LIST OF TABLES LIST OF FIGURES SECTION 1 GENERAL INFORMATION 242 - 9 8 x x -x Page Page UHF 984x SPECIFICATIONS 800 MHz 988x SPECIFICATIONS 900 MHz 989x SPECIFICATIONS SECTION 2 INSTALLATION WAR NI NG Page Page Page Page CAUTION Page Page SECTION 3 CIRCUIT DESCRIPTION Page 3-3 February 2001 Figure 3-1 Power Distribution and Switching POWER DISTRIBUTION (ALL MODELS) Note:Arrows Indicate Signal Flow. Figure 3-2 Power On-Off Control Circuit Interface Board (HighTier Only) Page Page Page Page Figure 3-3 Audio and Data Processing Circuitry Block Diagram AUDIO/LOGIC DESCRIPTION (ALL MODELS) 3-8 February 2001 RECEIVEAUDIO TRANSMITDATA Page Page Page Figure 3-4 RF Block Diagram (UHF Models) UHF SYNTHESIZER DESCRIPTION 3-13 February 2001 Synthesizer Receiver Power Amplifier Switching Page Page Page Page Page Page Page Page Figure 3-7 RF Block Diagram (800/900 MHz Models) 800/900 MHz SYNTHESIZER DESCRIPTION 3-23 February 2001 Synthesizer Receiver Power Amplifier Switching Page Page Page Page Page Page Page Page Page SECTION 4 SERVICING CAUTION Page Page Page Page SECTION 5 PARTS LIST FRONT PANEL ASSEMBLY AND MECHANICAL PARTS FRONT PANEL ASSEMBLY AND MECHANICAL PARTS (CONTD) UHF RF AND PA BOARDS UHF RF AND PA BOARDS Page Page Page Page Page Page Page Page Page Page Page Page Page Page 800/900 MHZ RF AND PA BOARDS 800/900 MHz RF AND PA BOARDS Page Page 800/900 MHz RF AND PA BOARDS (CONTD) Page Page Page AUDIO/LOGIC BOARD (ALL MODELS) AUDIO/LOGIC BOARD Page Page Page Page 9800-SERIES RADIO MOUNTING KIT PART NO. 023-9800-030 9800-SERIES REMOTE MOUNTING KIT PART NO. 023-9800-040 DC POWER CABLE AND HARDWARE KIT PART NO. 023-9800-410 (10 Ft) PART NO. 023-9800-422 (22 Ft) ACCESSORY WIRE KIT PART NO. 023-9750-011 AMPLIFIED DYNAMIC MICROPHONE PART NO. 250-0740-300 FRONT PANEL EXPLODED VIEW FRONT AND TOP MECHANICAL PARTS BOTTOM MECHANICAL PARTS 5-32 5-33 REMOTE CONTROL UNIT MECHANICAL PARTS REMOTE TRANSCEIVER MECHANICAL PARTS TRANSISTOR AND DIODE BASING DIAGRAMS SECTION 6 SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS TRANSISTORS Part Number Basing Diagram Identification DIODES Page Page 6-4 PA BOARD AUDIO / LOGIC BOARDRF BOARD 7A 8B P1 1 INTERCONNECT SCHEMATIC J3 1 21J2 19 20 S1 2 DISPLAY BOARD TOP VIEW DISPLAY BOARD BOTTOM VIEW 6-6 February 2001 Part No. 001-9800-001 R17 RPI (P.N. 023-9800-000) BOARD LAYOUT A 1 2 3 4 5 6 B RPI (P.N. 023-9800-000) SCHEMATIC A 1 2 3 4 5 6 B Orange Black Red Green Yellow Blue Grey Brown RF BOARD COMPONENT LOCATOR GUIDE (UHF) Page Page RF BOARD COMPONENT LOCATOR GUIDE (800/900 MHZ) Page Comp. Location AUDIO/LOGIC BOARD COMPONENT LOCATOR GUIDE Page Comp. Location 6-15 EXCITER RF BOARD SCHEMATIC (REVISED 430-470 MHZ) PA BOARD SCHEMATIC (25W, 430-470 MHZ) 6.6 NOTES: 1. POWER CONTROL 5 A 1 RF BOARD LAYOUT (430-512 MHZ) 2 3 VCO BOARD LAYOUT (430-512 MHZ) PA BOARD LAYOUT (25W, 430-512 MHZ) 6-18 .4 TX 13.6 RX PA BOARD SCHEMATIC (40W, 430-470 MHZ) PA BOARD LAYOUT (40W, 430-512 MHZ) 6-19 February 2001 6-20 EXCITER RF BOARD SCHEMATIC (UNREVISED 430-470 MHZ) 0.5V RF 5.8 13 .4 5 A B CA Go To Page 6-22 C575 C544 RF BOARD SCHEMATIC (470-512 MHZ) PA BOARD SCHEMATIC (25W, 470-512 MHZ) 6.6 NOTES: 1. POWER CONTROL 5 A 1 RF BOARD LAYOUT (430-512 MHZ) 2 3 800/900 MHz RF Board Schematic C119 PA BOARD LAYOUT (25W, 430-512 MHZ) Q102 VCO BOARD LAYOUT (430-512 MHZ) PA BOARD SCHEMATIC (40W, 470-512 MHZ) .7 TX 0 RX 6-26 February 2001 PA BOARD LAYOUT (40W, 430-512 MHZ) Go To Page 6-27 6-27 EXCITER RF BOARD SCHEMATIC (800/900 MHZ) PA BOARD SCHEMATIC (15W, 800/900 MHZ) NOTES: POWER CONTROL SYNTHESIZER RECEIVER 2 ABC 1 RF BOARD LAYOUT (800 MHZ) 3 4 2 6-29 February 2001 A900 VCO RF BOARD LAYOUT (900 MHZ) 3 VCO BOARD LAYOUT (800/900 MHZ) PA BOARD LAYOUT (15W , 800/900 MHZ) PA BOARD SCHEMATIC (30W, 800/900 MHZ) 6-31 6-32 February 2001 J601 PA BOARD LAYOUT (30W , 800/900 MHZ) U600 Q651 6-33 29 AUDIO/LOGIC BOARD SCHEMATIC 26 97 NOTES: TRANSMIT DATA RECEIVE AUDIO 3 45 AUDIO/LOGIC BOARD LAYOUT C B 3 4 5 A A B

EFJohnson 800/900 MHz RF Board Schematic

Models: 001-9800-001 001-9800-200 9800 SERIES 984X SERIES 988X SERIES 989X SERIES

6-24 February 2001

C119

Q102

VCO BOARD LAYOUT (430-512 MHZ)

PA BOARD LAYOUT (25W, 430-512 MHZ)