243. DIODEI.D. Number DESCRIPTION SPECIFICATION MARKING TYPED201, D202, D101,D301, D830DIODE MA77 4B BD102 DIODE MA862 M11 CD804, D805, D807 DIODE 1N4001 M2 BD806 DIODE RB471E D3G ED804A, D802 DIODE KDS187 D3 DZD803 ZENER-DIODE ZD7.5Y 7.5Y ALED801, LED802 LEDA TYPE B TYPE C TYPE D TYPE E TYPE

Specifications

Theory of Operation

Alignment Instructions

Test Equipment Set-Up 1

Semiconductor Lead Identification and IC Internal Diagram

PCB Views

Wiring Diagram

Troubleshooting Chart

Exploded View of Unit

Whole Parts List

Radio Shack HTX-400 Service Manual

fcc information

Introduction to Amateur Radio

Preparation

Testing Internal Batteries

Using AC Power

Using Vehicle Battery Power

Connecting the Antenna

Attaching the Wrist Strap

Using the Menus

A Quick Look at the Controls

A Quick Look at the Display

Operation

Receiving Transmissions

Transmitting

Understanding Repeaters

Setting the Repeater Offset Frequency

Setting the Repeater Offset Direction

Memory Operation

Recalling Memories

Using the Calling-Frequency Memory

Scanning Operation

Setting A Memory Location to Always Skip During Scanning

Temporarily Locking Out (Skipping) Locations During Memory Scanning

Continuous Tone Coded Squelch System Features

Tone Paging

Other Special features

Turning the Key Tone On and Off

Power Save

Reducing Squelch Tail

Troubleshooting

Care and Maintenance

Using the Keypad Diagnostic

HTX-400

Attaching the Belt Clip

Connecting a Microphone/Speaker

Scanning for Active Frequencies

Locking the Keypad

Using Standard Memories

Storing a Repeater Offset Frequency

Scanning Standard Memory Locations

Using Subaudible Tone Squelch

Subaudible Tone Frequencies

Reversing the Offset

Using the Transmit Melody Alert

Special Features

Frequency Step

Time-Out Timer

Busy Channel Lockout

Resetting the Transceiver


Contents Specifications Theory of Operation Alignment Instructions Test Equipment Set-Up 1 Semiconductor Lead Identification and IC Internal Diagram PCB Views Wiring Diagram Troubleshooting Chart Exploded View of Unit Whole Parts List	243. DIODEI.D. Number DESCRIPTION SPECIFICATION MARKING TYPED201, D202, D101,D301, D830DIODE MA77 4B BD102 DIODE MA862 M11 CD804, D805, D807 DIODE 1N4001 M2 BD806 DIODE RB471E D3G ED804A, D802 DIODE KDS187 D3 DZD803 ZENER-DIODE ZD7.5Y 7.5Y ALED801, LED802 LEDA TYPE B TYPE C TYPE D TYPE E TYPE Previous Next / 42