Hi Everyone,

It is a Toshiba CX2168C, #8806. The standby PS is an unregulated flyback
circuit using an STRD-1005T chip, followed by a zener at one output, and
with a linear regulator on the 5V. The unregulated voltages from the
SMPS to the linear stages are about twice what they should be.
The only thing I can think of are shorted turns in the primary of the
flyback transformer, changing the turns ratio and thus the output voltages.
Any comment or advice?

Thanks, Peter

Hi
are you using a scope, Digital or Analogue Meter?. There can be a difference
due to the waveform. I am not sure what to expect at flyback frequencies. I
am only happy when I get the same voltages as on the circuit diagram
(schematic)
Andy

"Peter Orban" wrote in message
...
Hi Everyone,

It is a Toshiba CX2168C, #8806. The standby PS is an unregulated flyback
circuit using an STRD-1005T chip, followed by a zener at one output, and
with a linear regulator on the 5V. The unregulated voltages from the SMPS
to the linear stages are about twice what they should be.
The only thing I can think of are shorted turns in the primary of the
flyback transformer, changing the turns ratio and thus the output
voltages.
Any comment or advice?

Thanks, Peter