[TechAssist] Re: Toshiba CX32G60 Won't turn off, no raster or OSD
- From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 23 Oct 2002 13:28:43 -0500
Thanks for checking Panday, I was pretty sure 62 ohms indicates an internal
short but since the replacement I received read about 70 ohms it did make me
wonder.
Jim Myers
Since 1972
Telrad Electronic Services Co.
Fort Wayne, IN 46815
jr.myers@xxxxxxxxxxx
260-432-4486 Fax and Voice
Fax is always on
----- Original Message -----
From: "D PANDAY" <dpanday@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, October 23, 2002 10:38 AM
Subject: [TechAssist] Re: Toshiba CX32G60 Won't turn off, no raster or OSD
Jim,
I have a brand new TMP47c1638n-u327 WITH pin 27 (Gnd) and pin
44 (Reset) reading appro., 30k.
There is no way the IC can be good at 62 ohms.
5v line resistance should be larger than 10k in the application on reset
line.
Good Luck.
Panday
>From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: <techassist@xxxxxxxxxxxxx>
>Subject: [TechAssist] Re: Toshiba CX32G60 Won't turn off, no raster or OSD
>Date: Wed, 23 Oct 2002 09:37:02 -0500
>
>
>No reply to this request? If someone could check resistance from pin 26 to
>pin 30 on a micro on just about ANY Toshiba tv it will probably tell me
>what
>I need to know. Kevin from Tritronics called me and he will take care of
>the
>part problem for me. He says the used part came to them from Toshiba and I
>don't doubt that at all.
>Jim Myers
>Since 1972
>Telrad Electronic Services Co.
>Fort Wayne, IN 46815
>jr.myers@xxxxxxxxxxx
>260-432-4486 Fax and Voice
>Fax is always on
>----- Original Message -----
>From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
>To: "T/A list" <techassist@xxxxxxxxxxxxx>
>Sent: Tuesday, October 22, 2002 12:12 PM
>Subject: [TechAssist] Toshiba CX32G60 Won't turn off, no raster or OSD
>
>
>
>I'm sure the microprocessor IC is bad, IC QA01 M37274MA-054SP. Pin 30 reset
>has an internal short to ground pin 26 of about 62 ohms. Ordered it from
>Tritronics and after waiting about six weeks they sent me a used one that
>someone pulled from a board and it has the same internal short, I installed
>it to verify that the set still does not work. Can someone check the micro
>in a Toshiba set and see if I'm right about this being an internal short?
>The base generic number on the IC is M37274MA and any chip of this family
>should read the same ohms pin 26 to pin 30. This is the second time
>Tritronics has sent an obviously used part, are they picking on me? Thanks
>for any help.
>Jim Myers
>Since 1972
>Telrad Electronic Services Co.
>Fort Wayne, IN 46815
>jr.myers@xxxxxxxxxxx
>260-432-4486 Fax and Voice
>Fax is always on
>
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