[TechAssist] Re: Sony KP-43T70 No HV
- From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 16 Jan 2003 07:29:21 -0500
Shaun, do you get any blinks of the LED during startup? I'm not concerned
about what it does to your Variac, for all I know it could be set to 1 A.
2 Blinks = 130V OCP
3 Blinks = 130V OVP
Any HV? 4 blinks is Vert failure.
What voltages are on CN801, sorry I'm Quick-Checking your problem with the
Sony TVP-10 training manual.
This tv has all sorts of Power supply protection on 5V, 11V, 18V, 130V and
even audio power (6 blinks).
Does the LED blink at all???
Eenie Meenie Chili Beanie.....the TV is about to speak.....
Damon Brunger
damon101@xxxxxxxxxxxxxx
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: "Satguy" <satguy@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, January 16, 2003 12:21 AM
Subject: [TechAssist] Re: Sony KP-43T70 No HV
> Is Q502 shorted when this happens because Q502 is not shorted.
>
> Shaun
> Advanced Electronics
> Fort Morgan, CO 80701
> (970) 867-3124
> satguy@xxxxxxxxxxxxx
> ----- Original Message -----
> From: "Frank Luu" <fkluu@xxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, January 15, 2003 3:42 PM
> Subject: [TechAssist] Re: Sony KP-43T70 No HV
>
>
> >
> > Shaun:
> > This is a very common problem for this unit:
> > Q502 bad due to bad flyback transformer.
> > Good luck
> > Frank Luu
> >
> > --- Shaun <satguy@xxxxxxxxxxxxx> wrote:
> > > I am working on a Sony KP-43T70 that when power is
> > > applied to it it pegs my variac for a second then
> > > goes down. The red power lighgt on the front stays
> > > on all the time. I replaced IC 601 regulator and no
> > > change. If I disconnect CN801 from the power supply,
> > > the power supply will stay on. CN801 is the
> > > connector that connects the power supply board to
> > > the board with the tuner on it. I do not have a
> > > schematic for this unit so any help would be great.
> > > TIA
> > >
> > > Shaun
> > > Advanced Electronics
> > > 120 E. Burlington Ave.
> > > Fort Morgan, CO 80701
> > > (970)-867-3124
> > > ssroark@xxxxxxxx
> > >
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