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-   -   JVC T.V. trouble! (https://www.diybanter.com/electronics-repair/109374-jvc-t-v-trouble.html)

Rono June 8th 05 09:03 PM

JVC T.V. trouble!
 
AV-27220 Chassis # A67, dead, plug in, B+
comes up to 130 vdc, drops right back to 90 vdc.
All the secondary standy voltages drop down to a lower
value. Changed vertical IC, & caps, as it's very common,
& the IC had low resistance on two pins. Found IC 651
had low resistance from ground, at pins # 24, 35, & 19.
Replaced IC, same thing, now getting 10 ohms at pin one
to ground. It's like someone possibly put a dc voltage to
the rear audio/video inputs. Anyone have a schematic, or
see this before. Rono.




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