Heathkit HW-9 User Manual

Heathkit
HFO Problems
Page
93
No HFO signal on any band
No HFO signal, one band.
1
2
3
1
2
3
4.
1
2
3
1
2
3
D121 through
D1 28.
Q108.
Jumpers W1 01
,W1 02.
D1
29
through
D1 37.
Wrong value capacitors
at Q1 09
Q109.
Jumper W104.
Q111.
Open
L133.
R173 misadjusted.
Switched
9-volt supply.
Diode in defective circuit.
Misaligned
oscillator tank circuit.
VFO Problems
No
VFO
output.
1.
2.
3.
4.
Q102.Q105.Q106.
L1
1 8
installed
incorrectly.
Wrong
values,
C1
82 through
C1
87.
VFO C1 not connected
to
hole E, or shorted
to
shield
BFO
Problems
No BFO signal
at
TP1 04. 1.
2.
Q112, Q113
D142.
No
TX/out signal,
okay at TP104.
1
Q114,
Q115
2. D143.
3. CW Level control miswired.
4. No + T1
2
volts on CW Level control.
Improper or no transmit shift. 1. L134 open.
2.
D141.
*
3.
Wrong
value
of
C205.
*
WARC bands are part of the
Model
HWA-9 Accessory

Heathkit HW-9 Specifications

General

Brand	Heathkit
Model	HW-9
Category	Transceiver
Language	English