[time-nuts] LPRO-101 internals
iovane at inwind.it
iovane at inwind.it
Tue Aug 19 06:43:15 EDT 2008
A good LPRO works both with cover on or off.
> Q703 voltages look good (with cover off and unit working).
Lamp color seems good (slightly pinkish violet). The room
that I am in is lit by DC halogen lamps so not rippley light
to worry about.
If the power to the halogen lamp comes from battery, really
no problem. If it comes from mains + transformer + rectifier
it remains suspicious.
My last suggestion: check R705 (100K) and R732 (100K) on the
bottom of the PCB. R705 should read some 84K onboard, and
R732 some 100K. The lettering around R732 is a bit ambiguous,
so look for a 100K resistor in that area.
Please let me know
Antonio I8IOV
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