[TechAssist] Re: Phillips 25B800 , shut down, need schematic

  • From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 25 Jan 2005 18:00:00 -0500

I had a wierd issue similar to this. The HV disc ceramic on the CRT 
board was breaking down under load. It may have been a .001@1KV or some 
such. Next to CRT socket. Might have been a G2 cap. Going from memory.
Phil Bader

walter wood wrote:

>Check R508, 22 ohms on crt board.
>HTH
>Walter
>--- larry <schntv@xxxxxxxxxxxx> wrote:
>
>  
>
>>phillips 25b800, had no vertical,
>>I cant seem to find a schematic of the crt board
>>for this chassis.
>>replaced vert ic,
>>  rectifier, resistor,  2 electrolytics.
>>comes on for 4 seconds then shutdown.
>>too much screen drive.
>>white with retrace.
>>adjusting screen control is very sensitive.
>>can a shorted vert. cause video damage?
>>Thank you,
>>Larry
>>
>>-- 
>>Schneider TV & Electronic Inc.
>>5415 N. Wooster ave.
>>Dover, Ohio 44622      
>>www.geocities.com/schntv2000/
>>330-343-0768         FCC. first class & Extra
>>class K8WLY
>>
>>
>>
>>    
>>
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>
>=====
>Walter Wood                  
>Future Tech Home Center        
>2786 Hwy. 43 N.
>Lawrenceburg Tn. 38464
>931-829-3337
>Fax 931-829-4044
>mailto:wwood_38478@xxxxxxxxx
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-- 

Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx



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