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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
ctc203ca5

 
 


daawe
New User

Aug 28, 2006, 8:58 PM

Post #1 of 5 (1208 views)
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ctc203ca5 Can't Post
I have a 36" RCA that is dead, but when plugged in it makes a high pitched squeal from the power supply. The HOT was shorted and I can't seem to find anything else. I resoldered the inductor that seems to be a problem but I have heard that the flyback is also a problem. Was wondering if there is anyway to test or if anyone had any other ideas before powering up with a new HOT. THanks!



mel
Veteran

Aug 28, 2006, 9:21 PM

Post #2 of 5 (1204 views)
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Re: [daawe] ctc203ca5 [In reply to] Can't Post
Unless you gave the proper equipment, there is no way to check the flyback short of wasting another HOT (which you will surely do if the flyback is bad).


daawe
New User

Aug 29, 2006, 5:31 PM

Post #3 of 5 (1190 views)
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Re: [mel] ctc203ca5 [In reply to] Can't Post
I was told that you cold pull the collector of the hot and see if sound was restored to help determine if the flyback was bad. Was also wondering if anyone had some other hints of items to check. Thanks.


pre269
New User

Sep 2, 2006, 6:29 PM

Post #4 of 5 (1162 views)
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Re: [daawe] ctc203ca5 [In reply to] Can't Post
 Resolder all horizontal sectrion :
Transformer, transistors, resistors and specially a little coil
next to the HOT. Take out the coil and clean carefully the
leads and reinstall it.Then put the new HOT.

This is a frecuently fail in this RCA model ,because there are bad solder joints in horizontal section ,and it is cause
HOT is shorted.


coochieo
New User


Sep 4, 2006, 4:56 AM

Post #5 of 5 (1137 views)
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Re: [daawe] ctc203ca5 [In reply to] Can't Post
i had one with the same problem replaced hot and found r14101 10ohm resistor off pin 9 of t 14101 thomson said to change it to 68 ohm fixed mine may not be your problem worth a look to see.
ROB

 
 
 


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