background image

 

 
 

TM109902 (5/03)

 

 

3-1

 

 

USE OR DISCLOSURE OF DATA CONTAINED ON THIS PAGE IS SUBJECT TO THE

 

RESTRICTION ON THE TITLE PAGE OF THIS DOCUMENT

C

O M M A N D  

S

Y S T E M S  

D

I V I S I O N

 

 

 

 

3.1 GENERAL 

This chapter contains applicable maintenance practices related to the RT-1601 Receiver – 
Transmitter.  Included in this section are inspection, adjustments and troubleshooting test point 
waveforms, cleaning and repair information; and disassembly/assembly instructions. 

3.2 VISUAL 

INSPECTION 

A routine visual inspection should be performed any time the receiver transmitter is removed from 
the aircraft. The following areas are of prime importance. 

A.   Chassis 

 

Inspect the chassis for loose or missing hardware, deformation, damaged fasteners, or damaged 
connectors. 

B.   Connectors 

 

Inspect the connector bodies for broken parts; check the insulation for cracks; and check the 
contacts for damage, misalignment, corrosion or bad plating. Check for broken, loose, or poorly 
soldered connections to the terminals of the connectors. Inspect connector hoods and cable 
clamps for pinched wires. 

C.   Terminal Connections 

 

Inspect for corrosion and loose connections. 

D.   Wiring 

 

Inspect the wiring of the chassis and subassemblies for any signs of physical damage or 
charring. 

E.   Capacitors 

 

Inspect capacitors for case or body damage and for loose, broken or corroded terminal 
connections. 

F.   Resistors and Diodes 

 

Inspect for blistered, charred, or cracked bodies; also check for loose, broken, or corroded 
terminal connections. 

The document reference is online, please check the correspondence between the online documentation and the printed version.

Summary of Contents for RT-1601

Page 1: ...ion damaged fasteners or damaged connectors B Connectors Inspect the connector bodies for broken parts check the insulation for cracks and check the contacts for damage misalignment corrosion or bad p...

Page 2: ...heck for corrosion at the terminal connections 3 3 CLEANING Do not use cleaning solvent on electrical parts cleaning solvent can soften and permanently damage insulating materials Wipe the exterior of...

Page 3: ...permanently damage the capacitor 3 6 REPAIR Voltage dangerous to life exists remove all power to unit before proceeding A Repair Precautions 1 Refer to paragraph 3 6B for special handling precautions...

Page 4: ...cuits are also susceptible to field voltages Not all electrostatic damage will result in immediate catastrophic failure Damaged devices may remain operating within the minimum limits but could experie...

Page 5: ...e mats Do not allow nonconductive items on the workbench This includes such items as plastic ashtrays cellophane wrappers plastic tools styrofoam coffee cups etc Maintain the relative humidity higher...

Page 6: ...ing To cool components use antistatic quick chill sprays Remember even when the ESDS device is installed on a printed circuit board it can STILL be damaged by electrostatic discharge C Printed Circuit...

Page 7: ...Board Two Lead Component Removal Resistors Capacitors Diodes etc 1 Heat from component side of board until solder flows and lift one lead from board repeat for other lead and remove component note ori...

Page 8: ...aragraph 4 8 4 Receiver Tests Paragraph 4 10 J Power Supply Fuse F1001 Replacement Refer to Figure 4 1 located in Chapter 4 Parts List The power supply fuse F1001 is located on the interconnect PC boa...

Page 9: ...e arrangement view of the transistor Transistors having in line leads must have leads formed to the standard three pin socket configuration Table 3 1 PNP Transistor Testing Procedure OHMMETER CONNECTI...

Page 10: ...igh 100 000 ohms or more Table 3 3 Transistors and Base Configurations TRANSISTOR TELEPHONICS PART N0 VENDOR TYPE NO BASE CONFIGURATION FIGURE 3 1 NOTE 12044 0009 2N5192 Q62 NPN power silicon 12044 00...

Page 11: ...Y S T E M S DI V I S I O N E T2 B C T30 CASE 3 1 2 E B C 4 T41 E C B T49 EMITTER 2 BASE 1 COLLECTOR CASE E CASE SOURCE DRA IN GATE CASE C B T62 T66 E C B E B C T23 T44 E C B T67 0757 Figure 3 1 Transi...

Page 12: ...175 54HCT175 74HC175 and 74HCT175 devices are CMOS versions of the above and may be shown in a separate IC diagram The 54AC175 and 54ACT175 devices are advanced CMOS logic ACL versions of the above AC...

Page 13: ...3 5 is a summary of possible IC failure Table 3 4 54 74 Series IC Alpha Character Significance ALPHA CHARACTER SIGNIFICANCE None Standard Transistor Transistor Logic TTL S Schottky clamped TTL device...

Page 14: ...43 D27C256 4 622 51023 0006 7 233 EP320DC 5 732 52720N 4 IC277 LM1596H 2 390 54121 15 IC400 LM218H 2 355 54LSOO 6 19 LM224N 2 524 54LS04 8 220 LM311N 2 252 54LS08 8 127 LM320T 12 6 228 54LS11 8 187 LM...

Page 15: ...26 27 28 19 20 1 4 5 6 7 3 2 8 9 10 11 12 16 15 14 13 33 30 29 34 35 36 21 22 23 24 25 37 38 39 40 31 32 1 1 3 4 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 2 4 5 6...

Page 16: ...T TO THE RESTRICTION ON THE TITLE PAGE OF THIS DOCUMENT CO M M A N D SY S T E M S DI V I S I O N Figure 3 3 Integrated Circuit Logic Diagrams Sheet 1 of 15 The document reference is online please chec...

Page 17: ...T TO THE RESTRICTION ON THE TITLE PAGE OF THIS DOCUMENT CO M M A N D SY S T E M S DI V I S I O N Figure 3 3 Integrated Circuit Logic Diagrams Sheet 2 of 15 The document reference is online please chec...

Page 18: ...S 00 07 Y GATING 32 768 BIT CELL MATRIX 32 768 BIT CELL MATRIX CE VPP GND PIN NOMENCLATURE AQ A11 E C VPP Q1 Q8 VCC 13 14 15 16 17 18 19 20 21 22 23 24 ADDRESS CHIP ENABLE OUTPUT ENABLE 21V OUTPUTS 15...

Page 19: ...T TO THE RESTRICTION ON THE TITLE PAGE OF THIS DOCUMENT CO M M A N D SY S T E M S DI V I S I O N Figure 3 3 Integrated Circuit Logic Diagrams Sheet 4 of 15 The document reference is online please chec...

Page 20: ...28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 3 4 1 IC732 2 I O ARCHITECTURE CPNTROL 19 2 76 5 4 3 2 1 0 0E I O ARCHITECTURE CPNTROL 18 76 5 4 3 2 1 0 0E I O ARCHITECTURE CPNTROL...

Reviews: