[TechAssist] Re: Zenith TV Z35X21D - Dead/Intermittent
- From: "Bob@Bobs tv" <woodman1@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 8 Dec 2003 14:09:05 -0500
David,
Replace the transistor and the IC together...note how transitor
comes out as some of the boards are marked WRONG......Part #'s on my
precious post..No voltages on print for the regulator. You may need these
parts listed, Make sure the output transistor is not shorted.....You could
also have a bad fly..
RX3406 and 07 47/1W
RX3403 15/3W
RX3409 4.7 1/2W
RX3408 22/1/2W
D3406,07,09 103-344-02A
Hope this helps
Bob,
Bobs TV Worcester, ma
woodman1@xxxxxxxx
Main 508-853-1482
Fax 508-853-1480
----- Original Message -----
From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, December 08, 2003 1:52 PM
Subject: [TechAssist] Re: Zenith TV Z35X21D - Dead/Intermittent
> I just got back from the customers home. CX3416 checked good, replaced
> it anyway. Qx3401 shorted C-E, front popped off. RX3406 burnt (beyond
> recognition). Not sure if ICX3431 is dead, main fuse is still intact.
> Does anyone have a good one kicking around so that I may compare pin to
> pin readings? Is it possible that ICX3431 is still functional? How could
> I check this? Thanks in advance.
>
> David Lessard
>
> Alexandria Electronics
> 50 Harrison Street
> Alexandria, Ontario
> K0C-1A0
>
> mr_fixit@xxxxxxxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Bob@Bobs tv
> Sent: Monday, December 08, 2003 12:49 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Zenith TV Z35X21D - Dead/Intermittent
>
> David,
> When you first check the set, with set off check for 130V at the
> collector of horizontal output.. {I use tuner ground} if its there. The
> 22uf
> and 100uf in the power supply should take care of this.. If the 130V is
> missing you have other problems. Listed below are most common faults
> CX34123 22uf/63
> CX3416 100/25>>>sub to at least 50V
> RX3404 180K 1/2W
> QX3401 121-3401
> IXC3431 223-28
> If you want me to send a JPEG of power supply let me know..
> Bob,
>
> Bobs TV Worcester, ma
>
> woodman1@xxxxxxxx
>
> Main 508-853-1482
> Fax 508-853-1480
> ----- Original Message -----
> From: "David Lessard" <mr_fixit@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, December 08, 2003 11:55 AM
> Subject: [TechAssist] Zenith TV Z35X21D - Dead/Intermittent
>
>
> > Gentlemen,
> >
> > I need to gather components before visiting this sick TV. Customer
> > indicates TV was intermittent before finally failing altogether. When
> > intermittent shutdown did occur, shutting off the TV for 30 minutes
> > would allow it to fire back up. This sounds like a capacitor acting up
> > but which one(s) and now that the TV is dead - dead, what else should
> I
> > bring on this job. God Bless America (North & South). Thanks in
> advance.
> >
> > David Lessard
> >
> > Alexandria Electronics
> > 50 Harrison Street
> > Alexandria, Ontario
> > K0C-1A0
> >
> > mr_fixit@xxxxxxxxxxxx
> >
> >
> >
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