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Casio CZ/ VZ/ FZ - Pro Series

Index last updated: 2026-04-28 22:42 UTC

Message

VZ-10m and buzz from transformer.

2011-03-31 by Pedro Rodrigues

Hello,

noticed my "new" VZ-10m has a high pitch buzz coming from inside. Narrowed
it down to the EL-M172A transformer on the PS2M board. It seems to be
feeding power to the backlight/front lcd. If I unplug the power from the
front lcd, the pitch of the noise changes. Does anyone have experience with
this?

Using the service manual for the VZ1 (which has the same board) as a
reference, measured the (AC) voltages outside the transformer and they don't
bear any similarity with the ones on the manual. Assuming this part is
faulty, which should be a good replacement?


Thanks!

/Pedro


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