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Message |
    
Sk1
Junior Member
Username: Sk1
Post Number: 16
Registered: 1-2002
| | Posted on Friday, December 02, 2005 - 5:24 pm: | 
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Hi all here's is the problem I had this radio in
my van took it out and put it in my basement for a while before I hooked it up to a power supply and antenna when I turned the radio on the fuse blew. Replaced fuse and it blew . where would I look for the problem? I am not good with electronics . |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 1998
Registered: 7-2004
| | Posted on Friday, December 02, 2005 - 7:11 pm: |
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+ & - reversed?
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Therealporkchop
Intermediate Member
Username: Therealporkchop
Post Number: 499
Registered: 11-2002
| | Posted on Friday, December 02, 2005 - 10:49 pm: |
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If the + and - aren't reversed, open up the radio and look right at the back where plug is mounted in the chassis. There is a diode there on that plug (I think). That could be the problem. Then there is one on the PCB, D93. If I'm correct, this could be your problem. I also know electrolytic cap's dry out with age, maybe that's a problem?
C195 could be shorted? Maybe D29? Check those first and see. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2001
Registered: 7-2004
| | Posted on Saturday, December 03, 2005 - 10:20 am: |
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i had a TRISTAR 240(hunk-a-junk) that used the SAME, STANDARD 3 PIN PLUG with 1 flat end & 1 rounded end-just like MOST radios use. only difference is, the + & - ARE REVERSED from the factory, even the 'red & black' cable has the colors on the opposite ends, as compared to 'normal' radios. made for some interesting problems 1st time it was brought to me 'to be looked at'. i plugged it in on the bench & POOF. popped the fuse. again & again. put a BIG fuse in it & the diode went. more then once. into customers car after replacing diode again. worked fine. tested it out in his car. later, checked MY stuff & STILL couldn't figure out what was up-my stuff all worked fine. a year or more later, i acquired that radio, & went through the whole mess again, so i threw it up on the shelf. YEARS later, looking for some internal parts, i opened it up, & after going through it for a while,looked at power cord & PRESTO!
before i finally sold that radio, i reversed the power connections so it would use a standard cable-didn't ever wanna see it again! |
Coyote
Advanced Member
Username: Coyote
Post Number: 624
Registered: 11-2004
| | Posted on Saturday, December 03, 2005 - 12:24 pm: |
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see, now you got me doin it....... |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2006
Registered: 7-2004
| | Posted on Saturday, December 03, 2005 - 2:37 pm: |
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that was just to let my NC buddy know i ain't perfect...close, but not quite  |
Sk1
Junior Member
Username: Sk1
Post Number: 17
Registered: 1-2002
| | Posted on Monday, December 05, 2005 - 12:29 pm: |
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Hi all thanks for the information if I can get the time I will take a look at it and see whats what. And again thanks.
Mike |
Therealporkchop
Advanced Member
Username: Therealporkchop
Post Number: 501
Registered: 11-2002
| | Posted on Tuesday, December 06, 2005 - 9:29 pm: |
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I feel like someone is trying to stomp on my toes!
I didn't mean that what you said couldn't be the issue Cheesy.
I just made suggestions. My friend Pat. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2031
Registered: 7-2004
| | Posted on Wednesday, December 07, 2005 - 8:36 pm: |
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