[TechAssist] Re: Wards Signature 2000 TV Model MWM2553Y
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 13 Mar 2004 09:41:30 -0500
Steve,
I've seen all kinds if different color problems in these Zenith CRT's. Does
this unit have a Zenith module
listed inside?
If the drive resistors are OK, I would bet a bad CRT and a CRT tester would
confirm this. I got mine for
$70 off E-Bay a few years ago and it works great. Tests each gun in these CRT's.
If you send the module number, I can see what I have for that module. Your
voltages are close enough,
another clue the problem is the CRT. I've fixed a few of these by just messing
the with CRT socket,
evidently cleaning the carbon off the pins and making for a brighter picture.
Tritronics sells a brightener that would probably lengthen the life of that
CRT, but I would give no
warranty on it.
Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
fax...717-564-4952
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
To: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Cc: <techassist@xxxxxxxxxxxxx>
Sent: Friday, March 12, 2004 8:29 PM
Subject: [TechAssist] Re: Wards Signature 2000 TV Model MWM2553Y
Jeff:
It seems after I have adjusted the FBT some more, and the Menu, the
Pix is a lot clearer and balanced. But I cant seem to get ANY white -
theres always a RED tint in there no mater what Settings I turn on the CRT
PCB or on the menu. I tried taking some JPG's of the problem, but the 1st
one loked like a good pic because the White From the Camera flash filled it
up and balanced it! The Red Seems to be strealy like a chroma problem,
becomes more streaky at higher channels. This Pic Captures the problem
somewhat, although in actuality, it looks more brownish in the pic than
redish / pink which is what it really looks like:
http://www.technotronic-dimensions.com/images/td63.jpg
Could this be low HV? I have no way of Measuring it unless I put a
Ton of Resistors in Series with my DMM. I have 393.5 VDC on the Grey wire
from the FBT - I think thats the G2 Wire? The (3) 15K Large wattage
Dropping Resistors for the Transistors on the CRT board all have equal
Readings of 211VDC on one side, while the Readings on the other Sides seem
different.
With each R-G-B Trimpot set exactly half way:
1) Blue Power Resistor = 137VDC
2) Red Power Resistor = 129VDC
3) Green Power Resistor = 138VDC
I can adjust the RED to be 137/138 Volts as the other 2, but it just
intensifies the problem.
Steve Hearns
Technotronic Dimensions , NY [USA]
1-877-817-9885 (Voice / FAX - Toll Free US Only)
> ----- Original Message -----
> From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, March 11, 2004 11:08 PM
> Subject: [TechAssist] Re: Fw: Wards Signature 2000 TV Model MWM2553Y
>
>
> Steve,
> The best way for me to determine if the problem is likely the CRT, go into
> the menu, the tint selection,
> if the "Green G" is brown, the CRT is bad.
>
> Jeff Dougherty
> Intrepid Video TV/VCR
> 263 S Front St
> Steelton PA 17113
> fax...717-564-4952
> www.intrepid-video.com www.tech-repair.net
>
> ----- Original Message -----
> From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, March 11, 2004 9:09 PM
> Subject: [TechAssist] Re: Fw: Wards Signature 2000 TV Model MWM2553Y
>
>
> Replaced Q5106, and tried wire around FBT core for heater. Retrace was
gone,
> color improved, but still Streaky and unbalanced. Found R5110 open.
> Replaced, took off the heater boost , and put regular Heaters back on.
Color
> much better, balanced, no streaks, but too much red....hardly any blue or
> Green. Replaced other 2 120K resistors for the other 2 Colors like R5110
was
> for , still have too much red, and hardly any blue or green. Is this a Bad
> CRT ? Any way to determine it without a CRT checker / Rejuvinator?
>
> Steve Hearns
> Technotronic Dimensions, NY [USA]
> WWW.TECHNOTRONIC-DIMENSIONS.COM
> 1-877-817-9885 (Voice / Fax Toll Free - US Only)
>
>
>
>
> ----- Original Message -----
> From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> To: "Tech_Assist.ORG" <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, March 11, 2004 6:41 PM
> Subject: [TechAssist] Fw: Wards Signature 2000 TV Model MWM2553Y
>
>
> Just Found a Sticker on the Chassis: 9-1407 and Q5106 Reading 200 Ohms E-C
> Both ways.
> Going to replace it, and Winstips Says to Isolate the Heaters with 5 Turns
> around the FBT core with with 20 Ga. Wire.
>
> I see this CRT is commonly bad.
>
> Steve Hearns
> Technotronic Dimensions, NY [USA]
> WWW.TECHNOTRONIC-DIMENSIONS.COM
> 1-877-817-9885 (Voice / Fax Toll Free - US Only)
>
>
> ----- Original Message -----
> From: "Technotronic Dimensions" <steve@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, March 11, 2004 6:08 PM
> Subject: Wards Signature 2000 TV Model MWM2553Y
>
>
> |
> | Not Sure what chassis this is the Same as? It has a Zenith CRT A63ADG31X
,
> | with ZENITH Stamped in the rubber FBT Anode Cup. Safe to say its a
Zenith
> | Chassis, but Which? CRT seems to be 25-27 Inches.
> |
> | Powers up ok, but Colors are Dim, overall Dim / unbalanced Colors....as
if
> | the Gamma is missing. IC4121 is getting real hot, and its Clip on Heat
> Sink
> | is loose. Not sure if its related.
> |
> | Mfr'd Aug. 1994. Any help appreciated, Thanks.
> |
> | Steve Hearns
> | Technotronic Dimensions, NY [USA]
> | WWW.TECHNOTRONIC-DIMENSIONS.COM
> | 1-877-817-9885 (Voice / Fax Toll Free - US Only)
> |
>
>
>
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