E.
F. Johnson Factory Service Bulletins
Documentation Project
CBTricks.com
TIPS: If the files with or icon will not display see the Site FAQ for help on printing, viewing and using this information. |
I am looking for other E.F. Johnson CB Service Bulletins. |
Number | Date | Models Affected | Reason |
5-26-69
|
Messenger 123 | Receiver Inoperative | |
6-25-69
|
Messenger 320, 323 | Audio Output Transformers | |
4-25-72
|
Messenger 123, 123A | On-Off Switch Damage | |
6-30-72
|
Messenger 109 | Capacitors Incorrectly Installed | |
6-27-72
|
Messenger 122, 123, 123A, 223 | Part Number Change | |
1-10-73
|
Messenger 122, 123A | Receiver Oscillation | |
1-10-73
|
Rechargeable Battery Unit | Possible shorting of circuitry | |
3-29-73
|
Messenger 109 | Antenna Breakage | |
3-30-73
|
Johnson Duo-Scan Receiver | Locking on low band | |
3-14-73
|
Messenger 323 | Squelch Operation | |
5-7-73
|
Messenger 122 | Wrong Resistor Installed | |
8-2-73
|
Johnson Duo-Scan Receivers | Defective pilot lamp | |
9-11-73
|
See Doc For Models | Transistor Substitution | |
10-24-73
|
Messenger 123A | Positive Ground | |
5-20-74
|
Messenger 130 | Squeal When Transmitting | |
6-3-74
|
Messenger 250 | Tone Quality | |
8-5-74
|
Johnson Transceiver Tester | Measure Mod. in mobile install | |
8-12-74
|
Messenger 125 | Self-modulation with Power Supply | |
2-11-75
|
Messenger 124, 124M, 320, 323 | Self-modulation | |
5-7-75
|
Johnson VHF Mini-Scan | Audio Distortion | |
7-2-75
|
Messenger 123A, 123B, 123SJ, 130 | High Frequency Osc Dropout | |
7-2-75
|
Messenger 123A, 123B, 123SJ, 130, 132, 250 | Audio Distortion | |
3-20-73
|
All Models | Sweep Alignment | |
n/a
|
Messenger 109 | Test Procedure | |
n/a
|
Messenger 123A | Test Procedure | |
n/a
|
Messenger 125 | Test Procedure | |
n/a
|
Messenger 124M | Test Procedure |
Disclaimer:
CBTricks.com does not warrant the accuracy of the information
contained herein nor is it responsible
for any errors or omissions and assumes no liability for the content
on this site.
While the CBTricks.com uses reasonable efforts to include accurate
and up to date information, CBTricks.com makes no warranties or representations
as to its accuracy
or timeliness and assumes no liability or responsibility for any errors
or omissions in the Content of this site.