[TechAssist] Re: Zenith Model IQC50H94W Chassis ZP04 (Dim Raster)
- From: Eric Manuel <tvman@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 16 Dec 2005 14:29:11 -0330
Robert check this resister.filament volts could be low..Eric
hitachi 53fdx01b no raster rp41 off four leg
regulator 1.5
ohm increased to 12 ohms causing no filament
Eric
E M Electronics
59 Wights Rd
Deer Lake NL
Canada
A8A 2J2
Ph# 709 635 2627
tvman@xxxxxxxxxxxxxxx
Robert McPherson wrote:
> First, I'd like to thank Bob Waterman for uploading the files:
> Zenith_IQC50H94W_Owners_Manual.pdf and
> Zenith_IQC50H94W_Complete_Service_Manual.pdf to the members area!
> Since my Thursday post re this set, I have found out that this chassis is
> based on the Hitachi DP-05 chassis (Similar to Hitachi Model 53FDX01B) but
> supposedly the Zenith has these differences: Micro, No Velocity Modulation,
> 3-Line Comb Filter. The source of this info was Alvie Rodgers @ Hitachi in a
> file located on the Ohio NESDA website. I found a similar tip posted by Bob
> Waterman.
>
> This is a 50" HD Monitor type PTV, DOP is 9/2000. The Zenith Service manual
> is PV152.
>
> The set is working fine except I have to turn the Screen Controls up ALL THE
> WAY to barely see the menus.
>
> ABL problem? (I had a Hitachi based Zenith a couple of summers ago which had
> a bad mylar? capacitor just off the ABL pin of the IHVT which was causing a
> similar problem) I need some ideas on this one, guys! Maybe someone has had
> a similar problem in the related Hitachi DP05 chassis.
>
> Thanks!
>
>
>
> Robert McPherson
> Louisville, KY
> Telephone (502) 367-9324
> Cellphone (502) 298-6997
>
> Email rm502@xxxxxxxxxxxxx
>
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