[TechAssist] Re: RCA CTC187CN3 (32GT660YX1)No start!!

  • From: becyn <becyn@xxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Wed, 16 Nov 2005 19:36:56 -0500

check the master osc xtal for the sweep function for oscillation before 
you condemn the Tchip
If there is no oscillation., it's USUALLY.just the500khz xtal.

Jim McVey
McVey Alltronix   
327 Broadway
Newburgh N.Y. 12550

"If it doesn't play...
CALL MCVEY !!!!!!"
Factory authorized
service for over 20
major brands.
845 561 8383
(Last of the Mohegans)

Bruce Tiedeman wrote:

>Thanks for the response, I should have mentioned, there is no Horiz drive
>pulse, the Stby 7.6V is Ok. The 5 volt supply is ok. I have data activity
>every 3 seconds at pin 15 and 16 of U3101. No data on the Tchip even is I
>lift the pins at pin53 and pin 54. This model had no PIP module. Wondering
>if it could be the Tchip.
>thanks
>Bruce.
>
>
>----- Original Message -----
>From: <tvman@xxxxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Wednesday, November 16, 2005 1:54 PM
>Subject: [TechAssist] Re: RCA CTC187CN3 (32GT660YX1)No start!!
>
>
>  
>
>>Bruce check this tip..Eric
>>
>>CTC187CN3    no power on    5v standby#2 low. Q105
>>
>>ctc187cn3    no power - fuses ok    remove and resolder L4102 next to smps
>>trans.
>>
>>
>>E M Electronics
>>Deer Lake NL
>>Canada
>>tvman@xxxxxxxxxxxxxxx
>>eric.manuel@xxxxxxxxx
>>eric.manuel@xxxxxxxxx
>>----- Original Message -----
>>From: "Rochester TV" <rochester.tv@xxxxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Wednesday, November 16, 2005 3:49 PM
>>Subject: [TechAssist] Re: RCA CTC187CN3 (32GT660YX1)No start!!
>>
>>
>>    
>>
>>>check r4103 a 1meg resistor near p/s reg ic
>>>
>>>----- Original Message -----
>>>From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
>>>To: <techassist@xxxxxxxxxxxxx>
>>>Sent: Wednesday, November 16, 2005 12:06 PM
>>>Subject: [TechAssist] RCA CTC187CN3 (32GT660YX1)No start!!
>>>
>>>
>>>      
>>>
>>>>Does any one have a print and or trouble shooting guide they could
>>>>        
>>>>
>>share.
>>    
>>
>>>>I have be trying to fix this set using information from a CTC177
>>>>        
>>>>
>chassis
>  
>
>>>>but notice some of the I.C pinouts are different. I have changed the
>>>>        
>>>>
>>EPROM
>>    
>>
>>>>and have a good regulated supply. There is momentary data at the EPROM
>>>>        
>>>>
>>at
>>    
>>
>>>>plug in.
>>>>thanks
>>>>Bruce.
>>>>B&T Electronics
>>>>139 Margaret ST
>>>>Sarnia Ontario
>>>>Canada
>>>>N7T2Y3
>>>>519 344 1850
>>>>
>>>>        
>>>>
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