[TechAssist] Re: any deas on a Sylvania 6727df
- From: "J Silverman" <greentron@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 7 Feb 2006 21:36:52 -0500
We have had similar models with the scan-derived rectifier for the 200 volts
shorted. And recently one where the feedback transistor was crippled (tested
OK in circuit) so as to look OK in standby but let the B+ go too high in
power-on, tripping x-ray shutdown. Replacing that transistor fixed the power
and we ran the unit for a day. Customer brought it back today - said it
failed after 15 minutes. Have not got back into it but am thinking I should
have replaced the opto too.
Jerry Silverman Greentron Inc
Mail to: greentron@xxxxxxx
4 Newland Ave Greenville SC
29609 864 232 3889
----- Original Message -----
From: <Royal19960@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, February 07, 2006 5:29 PM
Subject: [TechAssist] any deas on a Sylvania 6727df
> Hi all.
> We have in the shop a Sylvania 6727df that came in dead. I found a shorted
> diode, d1614, that caused the set to be dead. Now I get a fast relay
(degause)
> click and thats about it. My voltages are present in standby and the p-on
ones
> start coming up.
> Just wondering if some of you have had this as getting tech help from
funai
> is kind of disturbing
>
> Thanks
>
>
> Roy E. Adams
>
> Roy E. Adams C.E.T.
> Bonded TV Service
> 5158 W ForestHome Ave
> Milwaukee, WI 53219
> 414-541-9111 voice
> 414-541-2740 fax
>
>
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