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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
RCA

 
 


badattitude
New User

Jul 18, 2009, 10:20 PM

Post #1 of 7 (1220 views)
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RCA Can't Post
I have a RCA F32632SB tv, and it just stopped working. Nothing lights up on the set, but there is power going to the set. Any help would be appreciated



jts1957
Veteran


Jul 18, 2009, 11:00 PM

Post #2 of 7 (1211 views)
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Re: [badattitude] RCA [In reply to] Can't Post
Chassis number and type of display tech?
Your technical aptitude/equipment?


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(This post was edited by jts1957 on Jul 18, 2009, 11:02 PM)


Repair man
Enthusiast


Jul 19, 2009, 7:24 PM

Post #3 of 7 (1202 views)
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Re: [badattitude] RCA [In reply to] Can't Post
Your set will be an RCA CTC187 chassis and the most common problem is a bad H.O.T. (Horizontal Output Transistor). This will be a Large 3 legged Transistor on an aluminum heat sink near the Flyback Transformer.

The second most common part to fail is the STK730 010 regulator IC. It is the largest IC in the set and it's mounted on a longer aluminum heat sink. When this IC goes bad there will also be a fairly large black diode that is shorted located just behind the vertical IC (click on image link below).


CTC187 Part location









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(This post was edited by Repair man on Aug 12, 2009, 1:41 PM)


badattitude
New User

Jul 21, 2009, 8:32 AM

Post #4 of 7 (1177 views)
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Re: [jts1957] RCA [In reply to] Can't Post
I have some electronics repair experence, but not much with television. The chassis# CTC187CN3, and has a very heavy CRT. I have basic equipment, VOM, Cap Wizard, DC Power Supply


jts1957
Veteran


Jul 21, 2009, 12:43 PM

Post #5 of 7 (1174 views)
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Re: [badattitude] RCA [In reply to] Can't Post
Well Dan's suggestions are as good a place to start as any.

Check HOT for shorts. IF No shorts, what is the voltage on the collector? If HOT shorts, Regulator IC and diode mentioned are stressed.


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Location: Far, Far Away


badattitude
New User

Jul 21, 2009, 8:17 PM

Post #6 of 7 (1170 views)
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Re: [jts1957] RCA [In reply to] Can't Post
Thanks everyone, I will check those out and let you know what I find.


jts1957
Veteran


Jul 29, 2009, 1:49 AM

Post #7 of 7 (1092 views)
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Re: [Repair man] RCA [In reply to] Can't Post
Quote
Your set will be an RCA CTC187 chassis and the most common problem is a bad H.O.T. (Horizontal Output Transistor). This will be a Large 3 legged Transistor on an aluminum heat sink near the Flyback Transformer.

The second most common part to fail is the STK730 010 regulator IC. It is the largest IC in the set and it's mounted on a longer aluminum heat sink. When this IC goes bad there will also be a fairly large black diode that is shorted located just behind the vertical IC. -- Dan
Well I see where I got the wrong part number.

Quote
How does the regulator look? Especially no short between pins 8/9 & pins 11/12
Pull IC and confirm above - check surronding components, especially the diode Dan mentioned - Obtain one and replace.
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Any switched mode power supply secondary load shorts?

-------------------------
Location: Far, Far Away

 
 
 


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