[TechAssist] Re: Chipper Check King
- From: Jim Myers <jr.myers@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 24 Sep 2004 13:07:20 -0500
Looking at the schematic on the TCE web site that circuit looks so
simple Al, do you get pulses on the secondary side of the transformer?
If yes but no 5V on the rectifier diode cathode then there must be a
short to ground at the cathode or 100 ohms to ground if not direct.
*******************************************************************************************************************
Since 1972
Jim Myers
Telrad Electronics
Fort Wayne, Indiana
al m wrote:
> Yep but I disconnected everything to the rectifier and still no 5V. The
> pulses are on the primary and I changed the transformer. I'm stumped.
> Al Marquardt
> ampm@xxxxxxx
> Al Marquardt Electronic Repair
> 206 W Main
> Girardville Pa. 17935
> ----- Original Message -----
> From: "becyn" <becyn@xxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, September 24, 2004 12:37 PM
> Subject: [TechAssist] Re: Chipper Check King
>
>
>
>>Are you referring to the "isolation supply on the PCB?
>>If so, it's probably the output transistor on the primary.
>>check for pulses on the OTHER side of the base resistor. If they exist,
>>the
>>output is bad(maybe open?)..
>>
>>The CC king, AKA
>>Jim McVey
>>McVey Alltronix
>>327 Broadway
>>Newburgh N.Y. 12550
>>
>>Factory authorized
>>service for over 20
>>major brands.
>>845 561 8383
>>----- Original Message -----
>>From: "al m" <ampm@xxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Friday, September 24, 2004 12:25 PM
>>Subject: [TechAssist] Re: Chipper Check King
>>
>>
>>
>>>Well King I have one that has no 5V on the secondary side of the
>>>transformer. What's the magic word to fix it. Can find nothing shorted or
>>>wrong with any of the parts.
>>>Al Marquardt
>>>ampm@xxxxxxx
>>>Al Marquardt Electronic Repair
>>>206 W Main
>>>Girardville Pa. 17935
>>>----- Original Message -----
>>>From: "becyn" <becyn@xxxxxxxxxx>
>>>To: <techassist@xxxxxxxxxxxxx>
>>>Sent: Friday, September 24, 2004 10:57 AM
>>>Subject: [TechAssist] Chipper Check King
>>>
>>>
>>>
>>>>Yes, It's true! I am the self proclaimed "King of chipper check
>>
>>repair.;-)
>>
>>>>After someone in the shop (no one is claiming responsibility) did god
>>>>knows what to the CC interface, I have brought it back to life. It had
>>>>failed every diagnostic when I first discovered this sorry mess . Now,
>>
>>not
>>
>>>>only is it repaired, but it is updated to rev 1.2.
>>>>
>>>>Why am I so happy? I called RCA when the problem was first discovered
>>
>>and
>>
>>>>their advise was "buy a new one".
>>>>Well, my wallet screamed "NO WAY PAL!!!!!" so I had no choice but to
>>
>>take
>>
>>>>a deep breath and say "we're goin' in, men".
>>>>MISSION ACCOMPLISHED! I'm happy, my wallet is happy, I can now
>>
>>interface
>>
>>>>with that CTC197, so the customer will be happy too.
>>>>
>>>>I learned a bit about the thing along the way as well. If anyone has
>>
>>dead
>>
>>>>or dying CC's...I'm your man...
>>>>
>>>>Jim McVey
>>>>McVey Alltronix
>>>>327 Broadway
>>>>Newburgh N.Y. 12550
>>>>
>>>>Factory authorized
>>>>service for over 20
>>>>major brands.
>>>>845 561 8383
>>>>
>>>>
>>>>
>>>
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>>>
>>>
>>>
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>
>
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