| Author |
Message |
    
Wildman
New member
Username: Wildman
Post Number: 8
Registered: 1-2004
| | Posted on Thursday, May 27, 2004 - 10:43 am: | 
|
I AM HAVING TROUBLE WITH THIS POWER SUPPLY.WITHOUT A LOAD ON IT IT READS 14.3 VOLTS WHEN YOU PUT A LOAD ON IT IT READS 6 VOLTS.CAN GIVE ME SOME IDEAS WHAT THE PROBLEM COULD BE. THANKS |
Jon666
Intermediate Member
Username: Jon666
Post Number: 218
Registered: 11-2003
| | Posted on Thursday, May 27, 2004 - 11:40 am: |
|
most likley the power transisters on the back
those round ones on the back
would be the first place i would check |
Wildman
New member
Username: Wildman
Post Number: 9
Registered: 1-2004
| | Posted on Thursday, May 27, 2004 - 1:17 pm: |
|
jon those seem to be ok, whats next |
Jp1116
Member
Username: Jp1116
Post Number: 54
Registered: 5-2002
| | Posted on Tuesday, June 01, 2004 - 10:44 am: |
|
Is this a problem that has just started or did you get the power supply working like this? I just wondered if there had been any previous repairs done. Last one I had do this I found that the .1 ohm 5 watt resistors off the transistors had been replaced with a .5 ohm. It would show full voltage until you tried to key the radio. |
Jon666
Intermediate Member
Username: Jon666
Post Number: 221
Registered: 11-2003
| | Posted on Tuesday, June 01, 2004 - 12:46 pm: |
|
i would start checking voltages
at the input and output
then put a load on it
and check the voltage again |
Geekster
New member
Username: Geekster
Post Number: 8
Registered: 6-2004
| | Posted on Tuesday, June 15, 2004 - 9:42 pm: |
|
Start at the regulator IC. Could be something else but that is where I would start. Also check any zener diodes for correct voltage. |
