truclacicr
Badcaps Veteran
Last Activity: Today, 07:28 AM
Joined: 04-21-2019
Location: brisbane
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Can you measure the voltages on the pins? Could it be a load switch? -
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Page 18, 22 (quad power driver amp)
https://audiocircuit.dk/downloads/fi...9025-cd-sm.pdf
More service manuals:
https://www.google.com/search?q=file...%3Apdf+FA5205P
Manufacturer was Fuji Electric.Last edited by truclacicr; Yesterday, 04:59 PM.Leave a comment:
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Last edited by truclacicr; Yesterday, 02:44 PM.Leave a comment:
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https://www.eltako.com/fileadmin/dow...nternet_gb.pdf
State-of-the-art hybrid technology combines advantages of nonwearing electronic control with high capacity of special relays.
Universal control voltage 12 to 230 V UC.
Low switching noise. Contact position indicator with LED.
Integrated free-wheeling anti-surge diode (A1 = +, A2 = -).
By using a bistable relay coil power loss and heating is avoided even in the on mode.Last edited by truclacicr; Yesterday, 07:54 AM.Leave a comment:
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Measure the voltage on each side of the 470 ohm resistor.Leave a comment:
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I see 3 capacitors. Could it be a dual fixed output LDO regulator with Enable?
Could "2" be the year, eg 2022, 2012?
U25 is AP3418:
https://www.diodes.com/datasheet/download/AP3418.pdfLast edited by truclacicr; 07-27-2025, 10:49 PM.Leave a comment:
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Y1 = SS8050.
https://www.google.com/search?imgtyp...Cisz%3Am&udm=2
Y2 = SS8550.
https://www.google.com/search?imgtyp...Cisz%3Am&udm=2
To identify the IC, you would need to identify its pinout.
https://ipv4.google.com/search?q=fil...8%20OR%20soic8...Last edited by truclacicr; 07-24-2025, 01:29 PM.Leave a comment:
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It could be that the load is shorted to ground rather than the IC.Leave a comment:
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MBRD360, 3A, 60V, single Schottky barrier rectifier:
https://docs.rs-online.com/3644/0900766b80032d37.pdf
The top line is a date code.
https://www.google.com/search?imgtyp...Cisz%3Am&udm=2...Last edited by truclacicr; 07-14-2025, 11:13 AM.Leave a comment:
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I suspect that G1, G2 and G3 refer to the Generation of the processor (or laptop?).Leave a comment:
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WSR5R0150Fxx, where xx = EA, EK, TA or BALeave a comment:
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https://www.google.com/search?imgtyp...Cisz%3Am&udm=2
DALE WSR-5, 5 watt, 1%
https://www.vishay.com/docs/31059/wsrhighpower.pdf (datasheet)
http://www.vishay.com/doc?30327 (markings, see page 2, top right)...Last edited by truclacicr; 07-07-2025, 02:39 PM.Leave a comment:
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See the "Reference Design" on page 12 of the datasheet:
https://www.ti.com/lit/ds/symlink/tps562201.pdf
There is a potential divider between Vout and Vfb.
Vout = Vfb x (1 + R1/R2) = 0.768 x 1.309 = 1.005V...Leave a comment:
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1.5 ohms is a standard value, so it could be that.Leave a comment:
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Scratch the middle of the body until you expose the resistance element. Then measure the resistance between the element and each lead. Hopefully one side will be intact.Leave a comment:
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The feedback makes no sense (VFB and VOS). There should be potential dividers.Leave a comment:
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