[TechAssist] Re: Zenith PVY5270 Projo 9-1674 module
- From: "Paul Westcott" <westcott@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 10 Jun 2005 14:54:03 -0400
O.K.
Consensus is a bad I.H.V.T.
Will try to dig up a new board.
Thanks all for input.
Paul Westcott
Kingsway Electronics
1090 Kingsway
Sudbury, Ontario
Canada
Phone 705 566-9290
Fax 705 566-5349
westcott@xxxxxxx
----- Original Message -----
From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, June 10, 2005 1:40 PM
Subject: [TechAssist] Re: Zenith PVY5270 Projo 9-1674 module
> Jury says FLYBACK (at least):
>
> ---------------------------------------------------------------
> Text pasted from WinSTIPS 2.0
> http://www.ServiceSoftware.com
> ---------------------------------------------------------------
>
> ZENITH 9-1674
>
> Dead
>
> John Kincaid Sos Tv
>
> Problem Is Bad Fly And Hor Out Rebuilt Electrodyn Board Available For
> $93 Exchange
> 9-1674-03 Didn'T Even Have To Do A Adjustment Field Repair Was
> Easy
>
> ---------------------------------------------------------------
>
> ZENITH 9-1674
>
> Dead
>
> Marshfield Tv
>
> Shorted Hot, 121-1167, Also B+ Rectifier Diode Crx3412, Ecg577, Lastly
> Flyback 95-4134-15, Called Zenith, They Said Fly Not Sold As Replacement
> Part, Could Only Buy Module. Called Signal Electronics 800-842-8240, They
> Had Generic Replacement For -15/-21, Only $17, Worked Great.
>
> ---------------------------------------------------------------
>
> ZENITH 9-1674
>
> Dead Emergency Tv Electronics
>
> Emergency Tv Electronics
>
> Horiz Output Was Shorted, Replaced H.O.T. Qx3200 (121-1167-01) Also
Shorted
> Diode Crx3412 B+ Pn: Used A Ecg580.And Ihvt Pn: 95-4134-15
>
> ---------------------------------------------------------------
>
> ZENITH 9-1674
>
> Dead Set
>
> Jerry - Vision Video Labs, Inc
>
> Replace Flyback #95-4134-15, Bleeder Asy #A-17196-12, Crx3412 Use Ecg 577
> 1kv, 5a, 70ns Fast Switch, Qx3200=1167-01 Or 2sd2553
>
> ---------------------------------------------------------------
>
> ZENITH 9-1674
>
> Dead. Fuse Blown
>
> Jerry - Vision Video Labs, Inc
>
> After Replacing Flyback, Hot, & Checking Standup Diodes, Check Qx3402.
This
> Was Shorted, All 3 Pins. Caused Immediate Line Fuse Blow. Use Original #
> K790.
>
> ---------------------------------------------------------------
>
> ZENITH 9-1674
>
> No Video Or High Voltage. Audio Is Ok
>
> Doug - Vision Video Labs, Inc
>
> Replace Flyback Xformer Tx3204 #095-04134-31. Found Pins 2 & 3 Read Low
> Resistance To Second Anode. Hv Rectifier Diodes In Secondary Of Flyback
Must
> Be Shorted.
>
> ---------------------------------------------------------------
>
> Bob Waterman, CET® #RI-28
> Master Technician License #9109
> Service Manager / Parts Manager
> Gemini Computer, TV, & Security Alarms
> (508)695-7302
> (508)695-7769 FAX
> geminitv@xxxxxxxxxxx
>
>
> ----- Original Message -----
> From: "Paul Westcott" <westcott@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, June 10, 2005 1:01 PM
> Subject: [TechAssist] Zenith PVY5270 Projo 9-1674 module
>
>
> This set came in with shorted HOT and CRX 3412.
> Replaced but still a no go.
> The standby supply runs but the 115V supply doesn't.
> There is no drive from ICX3401 to QX3402.
> Is it possible that the above failures damaged the I.C.
> or am I missing something else?
> I see very few Zeniths and this thing is a pig trying
> to service it on my knees.
> Paul Westcott
> Kingsway Electronics
> 1090 Kingsway
> Sudbury, Ontario
> Canada
> Phone 705 566-9290
> Fax 705 566-5349
> westcott@xxxxxxx
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