Heathkit GR-78 - Page 2

TABLE OF CONTENTS
Introduction ae Tt 3 Initial Toss
Unpacking Instructions. iain be 5 Allgnment es Poeira
Alignment Without instruments "
Cireuit Boards Alignment With Instruments. 4
Receiver Circuit Boards Ports Liat... . . . 7 Alignment Chart. os weet
Step-By-Step Amombly sy ss 8 BRO Alignment. :
Antenna Switchoard Parts List... |... . 17 BOOKHz Crystal Calibration Alignment
Step-By-Step Assembly ss. ee vss. JB SSMHE Trap Coll Alignment
AF Switch-Board Parts Lit. LL) a2 Final Assembly ae
‘Step-By-Step Assembly... it 23 Operation vss ass
Mixer Switeh-Board Parts List : +B
Step-By-Step
Assembly
bi...
27
Frontand
Rear
Panel
Controls
and
Switches...
Oscillator Switch-Board Parts List ; += 90
Step By Step AWEMDIY vec. seve ess. 31 In Gave of Difficulty
General Troubleshooting Information
Troubleshooting Chart...
rae
Specifications
sss
os
sew
tee oc ack Aenea uerity
Cireuit Description uae aoa
Step-By-Step Assembly Busey 40
Cust Sita ee fo. Cireult Board X-Ray Views é
‘Switch-Board Installation
Wire Harness Installation
Receiver Circuit Board instalation... ss.
77 40 Voto chats
1 ag Chasis Potoorphn
fe Peplcement Pans Pice Lit 2
Chassis Wiring « Sf hans Oa
Alternat
Line
Voltage
Wiring
<
.
«
++
48
Schematic.
(foot
fom
pane)
os
so
Rear Pane Parts Mounting and Wiring... « 40
Front
Panel
Ports
Mounting
and
Wirieg.
=...
68
Wamanty
vee
vv
vee
Cabinet
Top
Parts
Mounting...
ss
yy
ss
BT
DC
Power
Cable
Wien
Le.
68
Customer
Seve
oe
wae
es
de
rear