Service manual

Copyright Donald W Thomas, K5ZRQ
13
Resistors
Ref# Description NOTES:
R29
2.2K 2W Driver Section
R30
68K 1/2W On PCB
R31
1K 1/2W On PCB
R32
10K 1/2W On PCB
R33
220 1/2W On PCB
R34
470 1/4W On PCB
R35
22K 1/4W On PCB
R36
220 1/2W On PCB
R37
6.8K 1/4W On PCB
R38
3.3K 1/2W On PCB
R39
22K 1/4W On PCB
R40
1K 1/4W On PCB
R41
15K 1/4W On PCB
R42
10K 2W One end connected to PCB
R43
150 1/2W On Terminal Strip
Potentiometers
Ref# Description NOTES:
VR1
5K Bottom Chassis
VR2
25K Bottom Chassis
VR3
10K On PCB
Diodes
Ref# Description NOTES:
D1
1N4822 HV Section
D2
1N4822 HV Section
D3
1N4822 HV Section
D4
1N4822 HV Section
D5
1N4005 Bias Power Supply, On Terminal Strip
D6
1N4005 LV Power Supply, On Terminal Strip
D7
1N914 On PCB, Keying detector
D8
1N4005 Across K1
D9
1N914 On PCB
D10
1N4005 On PCB Across K2
D11
1N34A On PCB, Meter detector
Transistors
Ref# Description NOTES:
Q1
2N5814 On PCB, Preamp
Q2
2N5814 On PCB, Keying control
Q3
2N5814 On PCB, Relay driver
Q4
2N5814 On PCB, Relay driver