Riddled TV Repair Forum Service Menu and Manual Schematics
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_Gabe Guest
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Posted: Tue Nov 11, 2008 11:49 am Post subject: Proscan ps27400 (ctc187) no start |
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Got this Proscan 27 inch, with no start problem. model ps27400
(ctc-187an4).
Want to start, I can hear it, but makes a puff in audio and cycles 2-3 times. Hot is good, solder is good, caps are good, new vertical does the same, remove the audio, still same. found no shorts anywhere, check all diodes, ok. I got momentarily voltage after the STK. so I presume it is good. What am I missing ?? |
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Google
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Post subject: Advertisement |
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_John Guest
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Posted: Tue Nov 11, 2008 11:50 am Post subject: |
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Change out the STK regulator. |
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_Gabe Guest
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Posted: Tue Nov 11, 2008 11:51 am Post subject: |
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Proscan is now fixed , running good. YOKE was effectively GOOD.
Problem was diode CR4401 , probably leaking. It is in yoke return path just after return caps.
I did was skeptic and my feelings were right !!
To be put in your database/hints for CTC187.
Thanks all who help by sending their inputs. |
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