[TechAssist] Re: Mitsubishi CK3531R B+ to H.O.T. question.
- From: "LeRoy Westlund" <llw@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 16 Aug 2004 00:01:07 -0600
Thanks, Damon.
I'll double check for a fuse, but so far I don't see any.
I traced the Collector of the H.O.T. all the way back to the SMPS
transformer, and didn't find any open resistors. So I suspect there isn't
anything open in the B+ line..
I have to order a H.O.T. for it, so I will post the results later in the
week.
The only 2SD1879 I have in stock is an SK series,...and we all know that one
can't be trusted. So I refuse to use it.
Thanks again,
LLW
LeRoy Westlund
Westlund TV & Electronics
97 North Main "Where there's a will,...
Centerfield, UT 84622-0087 There's always a way."
Ph./Fax 435-528-3822
mailto:LLW@xxxxxxxxxx
-----Original Message-----
From: Damon <damon101@xxxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Sunday, August 15, 2004 10:11 PM
Subject: [TechAssist] Re: Mitsubishi CK3531R B+ to H.O.T. question.
>In most cases the Hot does short and the IHVT is ok. Yes the relays need to
>energize for B+ and yes you can test it without the crt/yoke. I think (not
>sure) there is a glass fuse located in the SMPS circuit.
>
>I know it's a pain to pull the control panel out, but if you have a long
>shaft #2 phillips (Sears, Auto Zone.....) it's not too hard to deal with,
>just gotta have steady hands, good flashlight and magnetize the phillips
>head.
>
>Damon Brunger
>Telrad Electronic Services
>Ft Wayne, IN 46815
>----- Original Message -----
>From: "LeRoy Westlund" <llw@xxxxxxxxxx>
>To: "TechAssist" <techassist@xxxxxxxxxxxxx>
>Sent: Sunday, August 15, 2004 2:00 PM
>Subject: [TechAssist] Mitsubishi CK3531R B+ to H.O.T. question.
>
>
>| I pulled this chassis to check a few things on the bench, cause it's such
>a
>| monster of a set..
>| I found the H.O.T. ( 2SD1879 ) shorted.
>| Question is:
>| Can I check the B+ to the H.O.T. on the bench, without hooking the
chassis
>| back up to the rest of the TV ?
>| I didn't pull the control panel.
>| Is the B+ supposed to be there as soon as the power cord is plugged in,
or
>| does the power relay need to be energized before B+ to the H.O.T. can be
>| produced ?
>| I am working without a schematic, and I need to know if there is a fuse,
>or
>| a resisitor in line from the power supply B+, to the H.O.T.
>| Trying to save an extra trip, in case I may have missed something.
>|
>| TIA,
>| LLW
>|
>| LeRoy Westlund
>| Westlund TV & Electronics
>| 97 North Main "Where there's a will,...
>| Centerfield, UT 84622-0087 There's always a way."
>| Ph./Fax 435-528-3822
>| mailto:LLW@xxxxxxxxxx
>|
>|
>|
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