[TechAssist] Sony VCR, SLV555 won't power up, no display
- From: Gary McCartney <gary@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 13 Jan 2004 16:39:28 -0500
I have this Sony VCR, model SLV555 which will not power up and the front
panel display is not lit either.
I found a 1500uF, 25V cap in the power supply that was leaky. Replaced
that and a few others with high ESR. Also checked the diodes and made
sure that D207 has 16V on the cathode. The ON/OFF pin 2 on the 3 voltage
regulators (3120C, 3120C and 3050C) are at 0.8V all the time, even when
I push the power button.
Does anyone have a list of the proper voltages on the power supply
connector pins and the source from which the regulator ON/OFF pin gets a
HI signal for power?
Power supply is model APS-01UC, Sony part number 1-413-468-13
Thanks for any help.
--
Gary McCartney
McCartney Electronics
Guelph Ontario Canada
Est. 1984
email: gary (at) number63.ca
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