[TechAssist] Re: Panasonic CT-27S16CS (Chassis YAMEDP224C) HOT Part number?
- From: Eric Manuel <tvman@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 17 Jun 2005 14:22:06 -0230
Bruce did you replace the cap in the driver transformer primary..Eric
Eric
E M Electronics
Deer Lake Nfld
Canada
tvman@xxxxxxxxxxxxxxx
Bruce Tiedeman wrote:
> I just checked the tube seems O.K. I do notice the H.O.T waveform "trailing
> edge of the at the bottom", is not square like most, it jogs up slightly.
> It may not be turning off properly. The print says, do not check the H.O.T
> collector waveform so the scope probe may be causing this condition. I am
> using a D1881 now it is getting a little hot, will let it run and see, may
> have to order original.
> this customer is impatient ,
> thanks for your help,
> Bruce.
>
>
> ----- Original Message -----
> From: "Webster's TV" <webstertv@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, June 17, 2005 11:12 AM
> Subject: [TechAssist] Re: Panasonic CT-27S16CS (Chassis YAMEDP224C) HOT Part
> number?
>
>
>
>>Bruce,
>>
>>The original part # for the H. O. T. is # BU2508DF, one thing that can
>>cause failure of the H.O.T. besides the usual poor solder conections on
>>the
>>driver transformer, is a heater to cathode short in the Picture Tube, the
>>tube will short intermittantly, turning bright blue, red, or
>>green,depending
>>on the short, the customer will leave the set on and in no time it draws
>>enough current to blow the H.O.T. Usually tapping the neck of the tube
>>when
>>its playing OK will cause flashes of color of the shorted cathode. This
>>may
>>not be your problem, but I've had this problem several times in the past
>>on
>>these Quasar/Panasonic sets.
>>
>> HTH
>>
>> Dan Webster
>> Webster's TV
>> Shullsburg, Wi.
>>----- Original Message -----
>>From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Friday, June 17, 2005 8:18 AM
>>Subject: [TechAssist] Panasonic CT-27S16CS (Chassis YAMEDP224C) HOT Part
>>number?
>>
>>
>>
>>>Panasonic CT-27S16CS HOT Part number needed!
>>>
>>>I am hoping some one has information on this chassis. I repaired this set
>>
>>a
>>
>>>short while ago replacing the shorted H.O.T with a similar one and it
>>>came
>>>back same problem." H.O.T shorted fuse OK". The H.O.T that was in this
>>>set
>>>was a C4927 and I now realize it is similar to some Sony sets. I am not
>>
>>sure
>>
>>>if this is correct. This T.V set was in another shop and the same
>>
>>transistor
>>
>>>was replace previous.
>>>I soldered the Horiz section as usual and went over it again. If some one
>>>could confirm this part would appreciate it
>>>
>>>thanks
>>>Bruce.
>>>
>>>B&T Electronics
>>>139 Margaret St
>>>Sarnia Ontario
>>>Canada
>>>N7T 2Y3
>>>519 344 1850 .
>>>
>>>
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>
>
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