[TechAssist] Toshiba Model# 32a43 Chassis TAC0301 No horizontal sync

From: "Mouton's Electronics" <moutons@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Date: Fri, 16 Jul 2004 16:20:07 -0500
 A while back I listed a similar tv with the same problem and Jamie @
Affordable TV Repair was very
 helpful in pointing out the culpret. Bob Waterman also gave me a part list
for that model.  The conversation is in this thread.  I have another toshiba
doing the same
 thing Model # 32a43  chassis TAC0301. It is a little different. The
 component QV01 in this set is not 42 pin IC like the one discribed in the
thread. It is 32 pin labled mm1311B and is different than the one I had to
change.
 Could someone tell me if this is a similar switching IC or if you know if
it
 could cause the same problem? I don't have a diagram or partlist for this
 one either so a part number for this location would be great.

 Thanks, any help appreciated

 Jason
Moutons Electronics


 ----- Original Message ----- 
> From: "Jamie" <mayj@xxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, June 22, 2004 6:28 PM
> Subject: [TechAssist] Re: Toshiba model # 36A41 chassis tac0102 no
> horizontal sync
>
>
> > Jason, I don't know how similar these chassis may be but you may want to
> > check or
> > change the IC described below if your set has it. It is an RF,
> Audio/Video,
> > input switching IC.
> > Jamie
> >
> >
> >
> > Replacing QV01 fixed the set.
> > QV01 is a 42pin ic (MM1495XD) PN 23000369
> > Thanks for the replies and especially to Bob Waterman for uploading the
> > service manual and schematic.
> > Jamie
> > Affordable TV Repair
> > ----- Original Message -----
> > From: "Jamie " <jandkmay@xxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, March 01, 2004 9:30 PM
> > Subject: Toshiba 27AF61 / TAC0115 no sync.
> >
> >
> > > With RF input, no sound, horz.& vert. rolling no sync.
> > > With audio/video inputs, has sound, no picture.
> > > Just want to see if anyone has ran across this before or have any
ideas
> > > before I have to get a service manual. Thanks
> > > Jamie
> > > Affordable TV Repair
> > >
> >
> > ----- Original Message -----
> > From: "Mouton's Electronics" <moutons@xxxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Tuesday, June 22, 2004 1:03 PM
> > Subject: [TechAssist] Toshiba model # 36A41 chassis tac0102 no
horizontal
> > sync
> >
> >
> > > This tv was struck by lightning, evident because it originally
wouldn't
> > come on. I found a shorted transistor in the relay circuit. Now that the
> set
> > comes on it seems to operate normally accept there is no horizontal sync
> or
> > even vertical sync. It does tune and has good audio. It looks like the
RCA
> > ctc177 when the horizontal phase is missadjusted. I don't have a diagram
> and
> > haven't scene one of these chassis yet. Being it has 2 separate problems
I
> > believe it was lightning and am wondering if the eeprom in these are
> > anything like the CTC177. Can these be adjusted or must I change the
> eeprom.
> > If anyone thinks it is not likely the eeprom let me know. I may have to
> get
> > a diagram on this one.
> > > Thanks for any input.
> > >
> > > Jason
> > > Moutons Electronics
> > >
> > >
> > >
> >
>
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>
>
>



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[TechAssist] Toshiba Model# 32a43 Chassis TAC0301 No horizontal sync

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