[TechAssist] Re: RCA CTC185AB4 (F25281TX1) Regulator Question!
- From: Jorge Camboni <geo@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 17 Apr 2004 12:32:17 -0500
165 volts or a little more is correct, do not ask me why, but that
is the no load voltage for that kind of smps (also 195/197/203).
regards
Jorge
At 01:05 p.m. 17/04/2004 -0400, you wrote:
>CTC185 theory Question!
>130 Volt B+ is at 165 volts in standby.....is this normal.?
>
>I fixed the power supply in this unit. In standby the collector of HOT shows
>165V . This drops to 128 volts after start up. It regulates great varying AC
>input voltage + or - (10 volts) .
>Should the voltage be 130 volts in standby mode, not 165v? "In service
>literature it seems to indicate this". I am tempted to put this back
>together and let it go. The regulator transistor is running cool as is the
>H.O.T.
>If the CTC169 chassis has high standby it causes problems? Wonder if this is
>the same in CTC185.
>
>thanks for any info on this,
>Bruce.
>
>B&T Electronics
>139 Margaret St
>Sarnia Ontario
>Canada
>N7T 2Y3
>519 344 1850
>
>
>
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Jorge Camboni, GY Electronics, Richardson, TX
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