[TechAssist] Re: philips t800 vert
- From: "Shoreline Electronics" <jstielau@xxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 1 Aug 2004 17:53:03 -0400
And the usual suspects are?
Try this mind numbing info: Have fun
---------------------------------------------------------------
Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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PHILIPS T8
Vertical Size Draws Up From Bottom, Lines In Picture After Few Minutes
Mcgregor Tv Service
Capacitors 2252 & 2253 Off Micro Pins 16, 17. 1n
Remove From Circuit As Test.
---------------------------------------------------------------
PHILIPS T8
Vertical Circuit Failure
Chassis T8
Manual 7629
Information: A Small Number Of T8 Chassis May Exist With Fractured Smd
Capacitors In The Vertical Circuit. While These Parts Will Not Show Any
Noticeable Symptom They Could Contribute To Failure Of The Vertical Output
Ic 7471.
When Replacing 7471 Always Replace Smd Capacitors 2252 And 2253. These
Parts Are Located Under Top Mounted Resistors 3244 And 3249 In Section 7-E.
Use Service Code 3198 016 31020.
This Information Remains Correct But Has Been Expanded To Include:
Chassis S8 T8
Manuals 7628 7629
Symptom: A Small Number Of S8 And T8 Chassis May Show Vertical Failure That
Includes Size And Linearity As Well As Failure Of The Vertical (Frame) Ic
7471. Other Disturbances Of Vertical Scan Could Be Involved, Such As Noise
In Vertical Scan, Line Pairing Or Bunching Of Scan Lines And Other Unusual
Effects. The Following Parts May Be Involved In These Symptoms:
2244
2252
2253
2474 (Not In S8)
3474
3479
Refer To Force For Values, Locations And Service Codes.
---------------------------------------------------------------
PHILIPS T8
Vertical And Horizontal Distortion. Loss Of Picture At Bottom Of Screen.
Robinson Electronics
Replaced Over-Heated (Chip Had No Heatsink Clip On It) Vertical Ic 7471
#Tda8359j
Mfr# 935270164112 "Was 935263576112 - Inactive" .
---------------------------------------------------------------
==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@xxxxxxxx
========================
"If you push something hard enough it will fall over."
Fudd's First Law of Opposition - Sir Sidney Fudd
----- Original Message -----
From: "joe Wertenberg" <tvjoseph@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, August 01, 2004 11:59 AM
Subject: [TechAssist] philips t800 vert
> help still fighting this one. philips 27t800 27ps55s21 bottom half picture
> ok. middle distored paring. nothing above that.have print cked repl usual
> suspects. thanks any input tv joe.
>
>
>
> ruffer @ tv joe wertenberg ft myers fl
>
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