[TechAssist] Re: Hitachi part needed for model 31DX10B
- From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 7 Aug 2004 07:13:09 -0400
If you have the Sencore CB tester/generator you can test the crystal.
Russ Hoyt
Hoyt's TV
Exeter, NH
----- Original Message -----
From: "Gary McCartney" <gary@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, August 06, 2004 11:30 PM
Subject: [TechAssist] Re: Hitachi part needed for model 31DX10B
> I think if you have a crystal lying around for a number of years, there
> is a chance of the aging causing the resonant frequency to drift off of
> the original tolerance. Best to use a crystal manufactured recently.
>
>
>
>
> Gary McCartney
>
> McCartney Electronics
> Guelph Ontario Canada
> Est. 1984
> email: gary (at) number63.ca
>
>
>
>
>
>
>
> Jim Myers wrote:
> > I keep a couple of 3.58 crystals in my drawer and swap them out when I
> > suspect a bad one. I find that a 3.58 crystal is a 3.58 crystal and one
> > will work in any chassis. There may be exceptions but I haven't run into
> > one yet. Also more often than not it is the jungle IC that is bad
> > instead of the crystal. I'd be going back with a crystal, an IC and my
> > scope if I were you.
> >
****************************************************************************
***************************************
> > Since 1972
> > Jim Myers
> > Telrad Electronics
> > Fort Wayne, Indiana
> >
> >
> > Gemini Computer & TV wrote:
> >
> >>I have a Hitachi 31DX10B that has no color and it appears as though X501
> >>(3.58Mhz crystal) may be the culprit. The Hitachi part # is 2791505 and
it
> >>is NLA. Does anyone have one on their shelf? If not, do you think I can
get
> >>away with using something else? I have been down this road before with
other
> >>sets in the past and had to use the OEM crystal to restore my chroma.
The
> >>set is at the customer's home and I did not have a scope with me during
the
> >>service call. I am not going back unarmed.
> >>
> >>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
> >>geminitv@xxxxxxx
> >>www.geminicomputertvsecurityalarms.com
> >>
> >>
> >>
>
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