[TechAssist] RCA D52W20 chassis ITC222 shutdown fix
- From: "tvservice" <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 1 Jul 2004 17:36:11 -0500
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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