[TechAssist] Re: RCA Proj Model P4677CK Chassis CTC169PA
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 30 Aug 2004 22:07:47 -0400
Larry,
From Tech Repair CD:
RCA\CTC169\DEAD\\\\REPLACE U1902 IN AUDIO* CR4101 SHORTED IN B+ REGULATOR*
CR4606\\\\\\\\
RCA\CTC169\DEAD\\\\REPLACE U1902 IN AUDIO* CR4101 SHORTED IN B+
REGULATOR*\CR4606 IN POWER SUPPLY* CHECK
WIRES TO KEY PANEL THEY MIGHT\BE PINCHED* CHECK FOR BAD YOKE & SHORTED Q4802
ALSO CHECK\FOR BREAKS IN
FOIL ON CONNECTIONS 2*3*4*10* 11 & 12 OF IHVT\\\\\
Jeff
--
Intrepid Video TV/VCR Repair
263 S Front St, Steelton PA 17113
717-939-7708; (F) 717-564-4952
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "Larry Poffen" <lpoffen@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, August 30, 2004 10:27 AM
Subject: [TechAssist] RCA Proj Model P4677CK Chassis CTC169PA
This Proj set is really giving me fits. Came in dead, found pulling P1903
Audio plug restored normal operation. I replaced both audio out IC`s, no
help. found it still shuts down with both U1901 & U1902 removed. Measured
both the + & - voltages at the plug & both are running around 18V. With the
ic`s both out I can resolder the pins 2-3 & 6-7 that have been disconnected
to get the set to power up 7 set will continue to run with normal voltages
on the + & - supplies, but when I shut it off it will not restart. Have
checked caps in the circuit & find no problem. What has anyone else found
bad in this audio circuit? or any info to narrow down my problem would be
appreciated. thanks Larry
Larrys TV Service
Broken Arrow OK 74011
phone 918-455-1041
Fax 918-451-4485
e-mail lpoffen@xxxxxxx
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