[TechAssist] Re: FIXED** RCA F20203BK/CTC175A..Dead

  • From: Al Gutz <alg@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 09 Apr 2004 22:24:11 -0400

Jeff
 Be sure to solder the tab on the HOT heat sink, it will take out the
eeprom.

Al g

Intrepid Video Support wrote:
> 
> Was the EEPROM...
> I didn't suspect the EEPROM, since the customer stated the set was 
> intermittent dead..
> For me, I could not get the set to start at all. I did the tuner wrap, still 
> dead, so I figured the
> problem to be elsewhere...
> Most of the suggestions were the EEPROM, so I picked one up on my way to the 
> shop this am and viola, it
> works..H-freq was way off..adjusted and all was well.
> Thanks to all that replied.
> 
> Jeff Dougherty
> Intrepid Video TV/VCR
> 263 S Front St
> Steelton PA 17113
> ph..717-939-7708 fax...717-564-4952
> www.intrepid-video.com www.tech-repair.net
> A positive attitude may not solve all your problems, but it will annoy enough 
> people to make it worth the
> effort.
> 
> ----- Original Message -----
> From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
> To: "Techassist" <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, April 08, 2004 11:15 PM
> Subject: [TechAssist] RCA F20203BK/CTC175A..Dead
> 
> Customer said the set was intermittent dead. I have not gotten power to it at 
> all.
> I have 170vdc on HOT..too high. On Q4301, I also have 170vdc. I changed Q4301 
> with one from a scrapped
> chassis, until I place an order and same problem. I checked both Q4301's I 
> have and they both are not
> shorted or leaky..
> Any other suggestions?
> I did the tuner wrap already..
> Another thing I found odd, I have 5vdc on all pins of front panel switches..I 
> unsoldered the pin from the
> micro and the 5v is on the pin.
> Had to quit, for now...so this is as far as I got.
> I hope for some good ideas by tomorrow..
> Also, found C4155 and C4150 with high ESR..changed.
> I scoped the clock and data lines and they are there.
> 
> Jeff Dougherty
> Intrepid Video TV/VCR
> 263 S Front St
> Steelton PA 17113
> ph..717-939-7708 fax...717-564-4952
> www.intrepid-video.com www.tech-repair.net
> A positive attitude may not solve all your problems, but it will annoy enough 
> people to make it worth the
> effort.
> 
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