[TechAssist] FIXED, RCA CTC203CX, dead, odd sounds from p/s, second try.
- From: Kevin <kevintv@xxxxxxx>
- To: TECH-ASSIST <techassist@xxxxxxxxxxxxx>
- Date: Thu, 16 Sep 2004 23:31:21 -0700
With Roberts tip to check all semiconductors in the P/S, I found that
CR14105 (1k ohms), U14102 (300 ohms) and U14101 (55 ohms) were all
partially shorted in the P/S. I don't know why they shorted, but at
least it is repaired now.
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx
The original problem was the set would change channels by itself and
could not be turned off. After it was unplugged for 3-4 hours then the
set would work normally. Now it is dead, with a strange chirping sound
coming from the P/S. The B+ with the HOT disconnected is 49 volts and
the 3 voltages on the eeprom are 1.5 volts instead of 5 volts. It seems
that I have a P/S problem as all my voltages are low by about 70%. I
also disconnected the gemstar with the same voltage readings. What can
I check next? Thanks.
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx
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