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

  • From: "Avery Boyd" <adBoyd@xxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 9 Aug 2004 16:30:16 -0500

Is this the set that has a resistor on the CRT socket board that goes bad,
you might ck that Avery.
Avery Boyd
4666B S. Mingo
Tulsa OK 74146
Phone 918-665-2400
----- Original Message -----
From: "larry" <schntv@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, August 09, 2004 4:19 PM
Subject: [TechAssist] Re: Phillips 25B800 , shut down, need schematic


the 22 ohm is ok and i have 200 volts when i pull the crt
socket. but only 135 when crt screen is turned up.
  , i cant help but think this is related to the vertical
trouble originally.
Thank you all,
Larry


al m wrote:
> Check R460 and D460 and R58 or 508 on CRT board 22ohm resistor.
> Al Marquardt
> ampm@xxxxxxx
> Al Marquardt Electronic Repair
> 206 W Main
> Girardville Pa. 17935
> ----- Original Message -----
> From: "larry" <schntv@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, August 09, 2004 4:38 PM
> Subject: [TechAssist] Phillips 25B800 , shut down, need schematic
>
>
>
>>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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--
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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