[TechAssist] Zenith SM2771S, vertical collapse, unusual FIX.
- From: Kevin <kevintv@xxxxxxx>
- To: TECH-ASSIST <techassist@xxxxxxxxxxxxx>
- Date: Wed, 13 Apr 2005 17:17:29 -0700
This repair tip is from another technician. Set came in with vertical
collapse. Replaced vertical deflection IC LA7838, B+ resistor; still no
vertical. The tech injected a vertical signal with his Sencore, still
no vertical. After much checking the culprit turned out to be a shorted
capacitor on the solder side, connected to pins 10 and 12 of IC LA7838.
What made this repair so difficult was the shorted capacitor looked like
a bright green coil, which of course, normally tests shorted.
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx
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