[TechAssist] Phillips CCA092at01
- From: Don <tvgramps@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 30 Dec 2001 16:02:23 -0600
Came in with 6a fuse blown and horizontal output shorted also D1615 (30v
zener) shorted, changed these parts plus IC602 ( 5v)regulator on the main
board, end sensors on vcr unit and unsoldered the vertical IC and rang
flyback with Sencore ringer (showed 18 rings) covered the end sensors with
black tape and plugged in the power cord. The 117v comes up and goes to
44.5v Connecting to the collector of the horizontal output with the scope
shows a brief pulse then nothing. The all 117 volts goes to 44.5 v All 9
line measures 8.4v and the all 33 line measures 24.2v and the line marked
m-12 measures 8.5v have checked all transistors and diodes cna't find
anything CCA092at01
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