[TechAssist] Re: RCA PTV 195M2T
- From: Wayne Vanaman <Wayne@xxxxxxxxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 21 Nov 2005 10:06:22 -0600
On the blue kine:
J15102p3 is video.
Pin 5 is 10v,
You should have video on Q15102c, about 134v, in on the emitter 9.3vdc,
10v on the base.
On the main board, blue originates at U16201p32 and goes thru buffer smd
q12903 pn 216434. The base has smd r12905 2.8vdc and the collector
10.4vdc 3.4vPk signal, touching r12910. The emitter is 2.4vdc.
Where are you losing signal?
I am a little confused here. Was the board(s) soaked with coolant? Did
the tube come on?
Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl. 32506-3310
Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com
850-456-5995 voice
850-458-6369 fax
John Conti wrote:
> Mark, Looking at the pdf The deflection. There are the 240v supply and some
> 129v that I see going to the crt boards. What little time it gives try to
> compare to the other crt boards green or red.
>
> John
> Conti,sTV
> Texas
>
>
>
>>From: "markbrock" <markbrock@xxxxxxxxxxxxx>
>>Reply-To: techassist@xxxxxxxxxxxxx
>>To: <techassist@xxxxxxxxxxxxx>
>>Subject: [TechAssist] Re: RCA PTV 195M2T
>>Date: Mon, 21 Nov 2005 07:54:22 -0600
>>
>>thanks John, where does that come from ? deflection or small signal
>>board
>>?
>>
>>Brock Electronics
>>R.R.4 box 237
>>5208 cr.3385
>>Independence Ks. 67301
>>620-331-0235
>>fax 331-7191
>>
>>markbrock@xxxxxxxxxxxxx
>>Zenith*Philips*Peavey*Fender*Crate
>>we work on all brands,makes,models
>>of anything that plugs in the wall
>>----- Original Message -----
>>From: "John Conti" <contitv@xxxxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Sunday, November 20, 2005 6:52 PM
>>Subject: [TechAssist] Re: RCA PTV 195M2T
>>
>>
>>
>>>Borck, Sounds like your B+ to the collector of your blue driver might be
>>>missing on the blue crt board. Might check that.
>>>
>>>John
>>>Conti,s TV
>>>Texas
>>>
>>>
>>>
>>>>From: "markbrock" <markbrock@xxxxxxxxxxxxx>
>>>>Reply-To: techassist@xxxxxxxxxxxxx
>>>>To: <techassist@xxxxxxxxxxxxx>
>>>>Subject: [TechAssist] RCA PTV 195M2T
>>>>Date: Sun, 20 Nov 2005 16:51:32 -0600
>>>>
>>>>I got one of these in Friday, customer says no sound, fired it up,
>>
>>all
>>
>>>>working and sound on with test jig, looked in tube and found blue tube
>>
>>had
>>
>>>>no fluid, all leaked out on the board, so shut it down and gave the
>>>>customer bad news, I have same model in shop left because of bad blue
>>>>tube, so I swapped them and find its not the tube after all. bright
>>
>>blue
>>
>>>>with retrace lines then shuts down, its not the tube, crt/neck board,
>>
>>hv
>>
>>>>block or focus/screen asbly, has to be on one of the two boards,
>>
>>anyone
>>
>>>>have any tips on a board problem that would cause this ? I may be able
>>
>>to
>>
>>>>make one of the two.
>>>>thanks in advance
>>>>brock
>>>>
>>>>
>>>>Brock Electronics
>>>>R.R.4 box 237
>>>>5208 cr.3385
>>>>Independence Ks. 67301
>>>>620-331-0235
>>>>fax 331-7191
>>>>
>>>>markbrock@xxxxxxxxxxxxx
>>>>Zenith*Philips*Peavey*Fender*Crate
>>>>we work on all brands,makes,models
>>>>of anything that plugs in the wall
>>>>
>>>
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