[TechAssist] Re: CTC177AM2(Will not turn on unless unplug yoke)
- From: "Mouton's Electronics" <moutons@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 7 Nov 2002 11:46:32 -0600
do not discount that yoke. I just replace a 19" tube in warranty due to a
bad yoke. If you are in doubt put the chassis in another set so you can get
the correct highvoltage. Jim is right the HV will reduce if you unplug them.
So if you have another tube to check it with to be sure. Just make sure it
is the correct size. In most cases the yokes will match.
Jason Mouton
Mouton's Electronics
1116 Center St.
New Iberia, LA 70560
337-364-1641 Phone/Fax
moutons@xxxxxxxxxxxxxxxx
----- Original Message -----
From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, November 07, 2002 11:33 AM
Subject: [TechAssist] Re: CTC177AM2(Will not turn on unless unplug yoke)
>
> My bet would be " other problem ", not the yoke. The set is probably
> shutting down when turned on due to excessive high voltage which would be
> caused by excessive regulated B+. Disconnecting the yoke allows it to turn
> on and stay on because the high voltage is reduced and the x-ray protect
> circuit no longer detects excessive high voltage. Troubleshoot the
regulator
> circuit. The regulator circuit should work normally with the yoke
> disconnected but you may also want to pull the CRT socket board so you
don't
> burn the CRT.
> Jim Myers
> Since 1972
> Telrad Electronic Services Co.
> Fort Wayne, IN 46815
> jr.myers@xxxxxxxxxxx
> 260-432-4486 Fax and Voice
> Fax is always on
> ----- Original Message -----
> From: "roger birmingham" <rogerselectronics@xxxxxxxxx>
> To: <Techassist@xxxxxxxxxxxxx>
> Sent: Thursday, November 07, 2002 12:03 PM
> Subject: [TechAssist] CTC177AM2(Will not turn on unless unplug yoke)
>
>
>
> Have replaced regulator IC.
>
> and horizontal output.
>
> With horiz. yoke connected will not turn on.
>
> unplug yoke and get high voltage(low) but has a line straight up and down
.
>
> no deflection.
>
> Possible yoke?
>
> Or other problem.
>
> Thanks for any help.
>
> Roger...
>
>
> Rogers ELectronics
> 1225 Birmingham Road
> Sulligent, Alabama 35586
> 1-205-698-8047
>
>
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