[TechAssist] update. RCA F36444, ATC113CA1 dead. standby B+ OK no pwr on]
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: "techassist@xxxxxxxxxxxxx" <techassist@xxxxxxxxxxxxx>
- Date: Tue, 14 Jun 2005 16:04:26 -0400
Made sure the smps was up and OK. Replaced the Flyback, eeprom, HOT.
Resoldered the coils aroind the HOT.
Went to the Gemstar troubleshooting.
Checked ribbon cable BR104-pin 14 for +5.2 volts. It was there OK.
Next, check BR103-pins 10 and 12 (clock and data) for +5.0 VDC and 5VPP
signal.
I have neither.
Also said check BR104- pin 12 and 13 for signal when power is pushed.
Niether has signal.
Either omission I have is indication the manual says "replace gemstar"
So, replacing the gemstar is easy but does this cause other
complications (like alignments,etc) when you replace an eeprom?
My first...
Phil
Plugged in,I have +139 VDC at collector of HOT in standby. I have +5VDC
at I/R detector. Either pushing power button, or with remote, no
response. HOT good, smps seems OK.
Resoldered LL04 coil to HOT base (like the CTC203), resoldered fly and H
drive transformer.
Not a peep when power pushed.
Phil Bader
--
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
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