[TechAssist] Re: RCA D52W20 chassis ITC222 shutdown fix
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 1 Jul 2004 21:37:42 -0400
Great,
Thanks Robert...we need tips on these...especially when the deflection board is
not warranty
replaceable...
Also, for the three clicks, if the troubleshooting guide for this leads you to
the SSB, a simple reflowing
of the solder on the connector pins may fix it.
Use hot air or a torch...do not use an iron.
Also, for width and pin problems, DL032, TL100 and DL100(I hope their right).
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: "tvservice" <tvservice@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, July 01, 2004 6:36 PM
Subject: [TechAssist] RCA D52W20 chassis ITC222 shutdown fix
This is for info only, also posted to members area
The hv would come up and then shutdown with 3 pulses.
Monitoring EHT line from flyback at pin 10 of connector BL111 from deflection
board to small signal board
measured only +15 volts
before shutdown. This is normally around +26 volts. according to Tech-Line
Found resistor RL044 on deflection board off pin 10 same connector had
increased in value to 650K ohm
should be 221K ohm
this resistor is located under heatsink for vertical IC
To temporarily defeat shutdown (FOR TEST ONLY) short transistor TV852 B-E on
small signal board location
H-7
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
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