[TechAssist] Re: Panasonic CT32G13W AEDP305 dead
- From: "Webster TV" <webstertv@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 6 Jan 1980 11:22:39 -0600
Peter,
Here's a tip, on a set I had that was hit by lightning, and had low standby
voltage. I checked parts in the 13v standby circuit, and ended up finding
pins 22 & 61 of IC001 shorted to ground, also found shorted diode D011.
Replacing D011 & IC001 brought TV back to life, but I couldn't turn the unit
on or off right with power button. Ended up finding defective transistor
Q001 in on/off relay circuit. ( this transistor is PC mounted under chassis)
Lightning can cause so many different problems, that this tip may not be of
any help to you, but thought I'd mention it anyway.
Dan Webster
Webster's TV
Shullsburg, Wi.
----- Original Message -----
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, August 23, 2003 3:22 PM
Subject: [TechAssist] Panasonic CT32G13W AEDP305 dead
> Panasonic
> CT32G13W
> chassis AEDP305
> MFD 1998
>
>
> Dead- brought in as lighting estimate. The standby voltage is low
> ~7v. if the jumper that is in possion D012 is pulled it comes up to 20v.
The
> jumper heads toward the micro. I rember one simmilar comming thru the shop
> last year (simmilar chassis on a 27") that ended up being a cap. Can't
find
> the note on it. Testing diodes in circuit has reveled nothing and haven't
> found a bad cap yet. The only other anomoliy is that there is 8 ohm across
> C011, the cap is fine out of circuit. Don't have a schematic on this one.
> Have about come to the conculsion that is either a cap I can't find or the
> Micro....? Anyone have any ideas? The standy voltage diminishes as it
> travels from the source towards the micro area so something is loading
> it........
>
>
> Peter Oliver
> Tucson Radio TV
>
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