Icom IC-775 Service Manual

MAINTENANCE
O
ICOM | 1C-775 1C-775DSP | cue
INTRODUCTION
Thank you for purchasing the IC-775 or IC-775DSP. Y A\WARNING: DISCONNECT the AC
This guide describes installation of internal units or power cable from the transceiver and wait a few
filters, some adjustment procedures and fuse/battery minutes before performing any work on the trans-
replacement.
ceiver.
Bracketed page numbers refer to the instruction
manual.
OPENING THE TRANSCEIVER’S CASE
Follow the case and cover opening procedures
shown here when you want to install an optional unit
or adjust the internal units, etc.
e To see the RF, IF and PLL units
() Remove 6 screws from the transceiver’s top and
4 screws from the sides, then remove the top
cover.
@) Turn the transceiver upside down.
3) Remove 8 screws from the bottom cover, then
remove the bottom cover.
(4) Now you can see the RF, IF and PLL units.
Confirmation beeps sound each time a switch is
pushed. The beep volume can be adjusted as
follows.
() Remove the top cover as described above.
2) Set [AF] to the desired audio output level.
@) Turn the confirmation beeps ON in H-set mode.
(p. 44)
@) Rotate R26 (see right) while pushing [SET] to
obtain the desired volume.

Icom IC-775 Specifications

General

Brand	Icom
Model	IC-775
Category	Transceiver
Language	English

Summary

Introduction

Opening the Transceiver's Case

Beep Tone Volume Adjustment

Display Dimmer Adjustment

UI-100 DSP Unit Installation

AC Voltage Selection

Optional Filter Installation

Filter Selection

Activates installed optional filters in H-set mode for proper selection.

UT-66 Voice Synthesizer Unit Installation

CR-282 High-Stability Crystal Unit Installation

Fuse Replacement

Backup Battery Replacement