[TechAssist] Re: RCA CTC169CF CR4122 in chopper circuit
- From: DonsTVRepair@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 31 Jan 2002 12:07:46 EST
you wouldn't want to deviate from the actual parts on this set.....you need
to change the U4101, the 3 caps surrounding the U4101, and the actual RCA
zener.....once you get these parts in , plug it in, don't turn it on, but
check the B+ on the secondary side of the low voltage transformer, must be
less than 150 DC.....good luck
In a message dated 1/31/2002 12:03:45 PM Eastern Standard Time,
number63@xxxxxxxxxxxxx writes:
>
>
> I have a shorted chopper so I pulled CR4122 (3.0 V zener) to check it.
> Checked ok but I lost it. I only have a 3.3V 1 Watt zener in stock. Is
> this too far out of tolerance to use? I hate to have to wait for a parts
> order to come in just for this but I will if 3.0V is absolutely
> important. Will 3.3V zener bias the chopper too high?
> --
>
>
>
> Gary McCartney
>
> McCartney Electronics
> 7134 Fife Rd, RR 7
> Guelph Ontario Canada N1H 6J4
> Fax: (519)821-1530
> email: number63@xxxxxxxxxxxxx
>
-------------------
Don's TV Hut
863-668-9033
donstvrepair@xxxxxxx
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