[TechAssist] Re: Hitachi Projo Model 60SDX88B Chassis DX86 shorted HOT
- From: <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 31 Oct 2003 09:21:39 -0600
Got a bulletin from Alvie Rodgers (Hitachi)
about the fix for my problem
It states on serial numbered sets below V9J005245
to replace Q777 HOT and EP98 fuse with oem parts and add 39 ohm 1/8 w
resistor from base to emitter of Q777
(sounds like a Daewoo fix)
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
Dallas, TX
----- Original Message -----
From: "walter wood" <wwood_38478@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, October 30, 2003 3:11 PM
Subject: [TechAssist] Re: Hitachi Projo Model 60SDX88B Chassis DX86 shorted
HOT
> Nope, believe it.
> Had one the other day, bounced it off tech support.
> They said that the hot was probably the only
> problem.
> In my case, I believe it failed because it had very
> little heat sink grease on it and was mounted very
> loose to the hear sink.
> I'd use the oem part though.
> HTH
> Walter
> --- tvservice@xxxxxxxxxxxxx wrote:
> > Hey group,
> > Have this Hitachi TV in with shorted HOT 2SC5413
> > and open 2amp pico fuse
> > I have temporarily subbed with 2SD1887 and set
> > ran half day OK
> > Waveform has ringing on the base, figured it was
> > from subbing the 2SD1887.
> > I did a solder up all over the deflection board.
> > I have schematic but don't see waveforms listed.
> > It's hard to believe only HOT and fuse, normally
> > there is some reason for
> > failure
> > Is there anything else I should look for?
> > tia
> >
> > Robert
> > tvservice@xxxxxxxxxxxxx
> > H & H Electronics Inc
> > Dallas, TX
> >
> >
>
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> =====
> Walter Wood
> Future Tech Home Center
> 2786 Hwy. 43 N.
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