Re: 8.5w Psu
Yes removed & tested for all the above readings
theoregano60
New Member
Last Activity: 11-29-2021, 04:33 AM
Joined: 03-16-2019
Location: Luton
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8.5w Psu
Hi all
i have a 50v 1uf electrolytic cap that i think is a soft start cap for a PWM chip
VIP22a (or smoothing cap for VDD) all the readings on a DER 5000(set @ 120hzand calibrated) are reasonable 0.98uf
tan 85
D 0.04
Q 14
but ESR was 113ohms im guessing the cap is bad so my question why is the ESR is so out of tally with the rest of the readings, is the cap shot (the only other cap i have @ hand is a 50v 10uf is it possible to use that)
Original fault no dc out put but PSU LED lit found 400v cap gone now circuit back up & running with steady...Last edited by theoregano60; 04-29-2021, 02:45 PM. -
HP Compaq CQ61 Quanta OP8
Hi all ,
Shorted this laptop when resembling
(left charger in
)
Put laptop aside for when i had more time ,which turns out to be now just whizzing around the board
+5VPCU=150ohms
+3VPCU=14ohms
Found 150 ohms on +5VPCU is with PL12 Removed (+meter probe on 5VPC side & -probe on GND plane)
Also 14 ohms on +3VPCU with PL13 Removed
Would i be right in thinking this isnt correct
Schematic page attached... -
Re: Component ID on TV UHF Amplifier PSU
Thanks RJ your a star
Sorry for the lack of replies works been taking up a large chunk of time ,
next job to try and source once again many thanks too everyone
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Re: Component ID on TV UHF Amplifier PSU
Manufacturer: IKUSI (power supply side could be Teldis)
Model Number: NBS-804
Its a bit niche as this equipment is used in blocks of flats to distribute UHF TV signals...Leave a comment:
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Component ID on TV UHF Amplifier PSU
Hi All
Can anyone help assist on id of this component (or manufacturer)from a TV UHF Amplifier...Last edited by theoregano60; 10-02-2019, 01:13 PM. -
GL62 6QC Schematics MS-16J61
Hi all,
does anyone have schematic's for a MSI GL62 6QC Motherboard MS-16J61
Many Thanks
Theo -
Re: New Members - please post your introductions here
Hi All
I fix communal TV/Satellite systems
looking to learn some electronic's here ,so maybe I can repair some of the modules I replace rather than just swapping out like for likeLeave a comment:
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