[TechAssist] Fixed KV35S36 - Thermal runaway
- From: "tony saracco" <tcselectronics@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 6 Oct 2003 18:14:36 -0500
Set came in dead. Found blown H out and failed supply. replaced the output
with C5148 and the regs Q 601 and Q 602 plus the fusible resistor. After 5
min the reg would get extremely hot and destroy themselves. Replaced the regs,
all 8 glass type diodes, all Mylar and ceramic caps on primary, the varistor
and the bird tird caps ( .47uf tantalum) but still regs would get hot. Only
thing left was the Reg drive transformer T603, After replacing T603 supply runs
at much cooler temp and has not failed .
Tony Saracco
TCS ELECTRONICS
Elgin , IL 60120
847-695-1928
tcselectronics@xxxxxxxxxxxxxxxx
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