Troubleshooting Power Supplies and Power Supply Design

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Sticky: List of pin compatible pwm/supervisor PSU ICs by Quaddro Started by Quaddro, 12-06-2019, 02:54 AM	19 responses 12,529 views 0 reactions	Last Post by protocold 10-29-2025, 09:12 PM
Sticky: the gutless, bloated, and fried power supply hall of shame by ratdude747 Started by ratdude747, 12-18-2009, 05:18 AM	1,759 responses 588,804 views 0 reactions	Last Post by PeteS in CA 09-16-2024, 04:31 PM
Sticky: Power supply build quality pictorial. part 2 by kc8adu Started by kc8adu, 06-29-2009, 01:23 PM	3,227 responses 1,388,640 views 0 reactions	Last Post by japlytic 09-14-2024, 07:04 PM
Sticky: WARNING: Live heatsinks & single pole on/off switches in switching power supplies by Per Hansson Started by Per Hansson, 06-09-2021, 12:01 PM	6 responses 7,466 views 0 reactions	Last Post by RJARRRPCGP 12-29-2021, 12:12 AM
Sticky: The PSU FAQ by PeteS in CA Started by PeteS in CA, 08-28-2005, 04:29 PM	55 responses 124,841 views 0 reactions	Last Post by bianchi77 08-31-2016, 11:54 PM
Sticky: General PSU Discussion and FAQ contributions by PeteS in CA Started by PeteS in CA, 08-28-2005, 04:29 PM	20 responses 68,948 views 0 reactions	Last Post by moe2020 10-04-2015, 12:04 AM
Sticky: Power supply build quality pictorial DISCUSSION by dood Started by dood, 12-21-2005, 03:39 PM	353 responses 221,019 views 0 reactions	Last Post by momaka 06-19-2014, 12:52 PM
Closed, Sticky: Power supply build quality pictorial.closed.use part 2 by dood Started by dood, 12-21-2005, 03:39 PM	410 responses 435,159 views 0 reactions	Last Post by jvyt 06-25-2009, 01:40 AM
DSP-167DP LOW VCC at IC901 by TJM2005 Started by TJM2005, 10-12-2025, 12:04 PM	37 responses 441 views 0 reactions	Last Post by TJM2005 Yesterday, 04:57 PM
Is what I have compatible with this Delta DPS-250AB power supply? by Justin_D33 Started by Justin_D33, 09-30-2025, 06:23 PM	10 responses 165 views 0 reactions	Last Post by Agent24 11-01-2025, 06:50 PM
Dell H235P-00 Power Supply Failure by Info13 Started by Info13, 10-22-2025, 01:52 PM	3 responses 53 views 0 reactions	Last Post by Agent24 11-01-2025, 04:42 PM
Schematic for Lenovo PCG010 power supply by NiroPall Started by NiroPall, 07-26-2023, 11:35 PM	5 responses 983 views 0 reactions	Last Post by Genius gopi 11-01-2025, 07:37 AM
Help me understand this linear supply circuit. by прямо Started by прямо, 02-17-2025, 11:09 PM	3 responses 71 views 0 reactions	Last Post by Agent24 10-30-2025, 04:21 PM
Dick Smith Q-1760 linear power supply filter capacitor question by Agent24 Started by Agent24, 10-21-2025, 05:39 PM	6 responses 54 views 0 reactions	Last Post by Agent24 10-23-2025, 09:44 PM
Delta TDPS-138AF Avaya no output repair by CapLeaker Started by CapLeaker, 02-28-2020, 12:51 PM	52 responses 7,714 views 0 reactions	Last Post by CapLeaker 10-10-2025, 10:28 AM
Solar Inverter - SMH-II - 2 missing capacitors by Cama Started by Cama, 09-12-2025, 02:50 AM	18 responses 202 views 0 reactions	Last Post by Cama 10-09-2025, 11:28 PM
Mini Max CT250 Spa Control/Power Board by dcapper Started by dcapper, 09-05-2019, 07:20 AM	18 responses 2,705 views 0 reactions	Last Post by replevis 10-07-2025, 05:46 PM
test active pfc power with lamp test by khelane Started by khelane, 06-03-2025, 01:00 AM	9 responses 172 views 0 reactions	Last Post by petehall347 10-07-2025, 04:10 PM
Trouble with Daker DK 3000 UPS by CidiRome Started by CidiRome, 02-08-2017, 03:54 PM	43 responses 7,225 views 0 reactions	Last Post by Fayce 10-06-2025, 01:19 PM
Trying to repair a HP Z800 850W PSU by Delta by BLinux Started by BLinux, 10-19-2017, 01:06 PM	41 responses 17,952 views 0 reactions	Last Post by jaykalpatel@yahoo.co.in 10-06-2025, 07:28 AM
RYOBI-one charger by stj Started by stj, 04-30-2016, 08:05 AM	35 responses 7,724 views 0 reactions	Last Post by ryszard54 10-03-2025, 06:12 AM
Please help me find 7 pin smd ic 901 part number in Delta DPS-300AB-76 LED Display Power Supply by Gentian Started by Gentian, 09-27-2025, 11:03 PM	6 responses 158 views 0 reactions	Last Post by R_J 09-29-2025, 06:35 PM
Seasonic B12 BC-550 – barely 2 years old and with BAD CAPS already! by momaka Started by momaka, 03-12-2025, 03:42 PM	5 responses 579 views 0 reactions	Last Post by quicknick 09-29-2025, 06:10 PM
SYMSI70 gas heater, TOP247Y exploded, power supply, snubber network by hikomalek Started by hikomalek, 09-19-2025, 03:30 AM	17 responses 187 views 0 reactions	Last Post by hikomalek 09-29-2025, 05:17 AM
maxipower 400W Dead power supply repair by khalillll Started by khalillll, 09-27-2025, 05:06 AM	3 responses 93 views 0 reactions	Last Post by CapLeaker 09-27-2025, 07:36 AM
APC UPS error P13 by sushilachuthan Started by sushilachuthan, 09-26-2025, 09:00 AM	0 responses 98 views 0 reactions	Last Post by sushilachuthan 09-26-2025, 09:00 AM
XBox One PSU Mosfets by CZFan Started by CZFan, 01-18-2024, 07:10 AM	4 responses 260 views 0 reactions	Last Post by EvilBzyk 09-24-2025, 02:41 AM
A Dead/DOA Gigabyte GP-P450b 450W ATX PSU by momaka Started by momaka, 01-26-2022, 03:26 AM	16 responses 7,302 views 0 reactions	Last Post by Baste 09-22-2025, 02:18 AM
APC Back-ups RS 1500 Dead by AquaSonic Started by AquaSonic, 12-16-2010, 03:22 PM	64 responses 51,735 views 0 reactions	Last Post by FitWizard 09-17-2025, 07:08 PM
Corsair HX1200 connected w EVGA molex cable, 12V pin back feeded to 5V. Anybody has experience in this damages repair? by coinwizx Started by coinwizx, 09-15-2025, 12:46 PM	2 responses 48 views 0 reactions	Last Post by stj 09-16-2025, 06:34 AM
NZXT C850 connected w EVGA molex cable, 12V pin back feeded to 5V. Anybody has experience in this damages repair? by coinwizx Started by coinwizx, 09-15-2025, 12:44 PM	2 responses 24 views 0 reactions	Last Post by stj 09-16-2025, 06:34 AM
Corshair RM750 - doesn't allow for board to turn on by kotel studios Started by kotel studios, 07-20-2025, 05:02 AM	76 responses 795 views 0 reactions	Last Post by stj 09-16-2025, 06:32 AM
Replacing resistor fuse in Sony DV charger by corrize Started by corrize, 06-30-2025, 06:59 PM	13 responses 222 views 0 reactions	Last Post by corrize 09-12-2025, 06:17 AM
Burned out PSU Corsiar HX1200 and NZXT C850, connected to wrong Molex/Sata cable from EVGA. by coinwizx Started by coinwizx, 09-09-2025, 03:11 PM	7 responses 64 views 0 reactions	Last Post by stj 09-11-2025, 04:15 AM
Dead corsair VS450 with blown TNY chip (cwt) by zunasthegreat Started by zunasthegreat, 08-30-2025, 03:11 AM	10 responses 183 views 0 reactions	Last Post by Agent24 09-07-2025, 12:59 AM
Delta DPS-800GB Power Supply No Power by torgeson5kqs Started by torgeson5kqs, 09-11-2012, 06:49 PM	41 responses 31,478 views 0 reactions	Last Post by Rainbow 08-28-2025, 07:15 AM
Samsug washing machine. Power supply DC41-00189a board issue by Soulzink Started by Soulzink, 04-19-2025, 06:26 AM	18 responses 731 views 0 reactions	Last Post by Soulzink 08-21-2025, 04:32 PM
Help Needed for PSU Board Identification by lisahamp871 Started by lisahamp871, 08-20-2025, 08:36 AM	2 responses 61 views 0 reactions	Last Post by R_J 08-20-2025, 05:55 PM
JBL Soundbar 2.1 Deep Bass PSU No DC Power Output (Detailed, w/ Schematics) by _AcE_ Started by _AcE_, 08-10-2025, 09:27 AM	1 response 68 views 0 reactions	Last Post by CapLeaker 08-10-2025, 11:13 AM
Transistor replacement for L240AS-00 by Winston Chadwick Started by Winston Chadwick, 08-16-2016, 02:17 PM	14 responses 6,104 views 0 reactions	Last Post by Imalu 08-03-2025, 04:00 PM
op amp circuit function? by Alimash Started by Alimash, 07-31-2025, 07:45 AM	2 responses 76 views 0 reactions	Last Post by Alimash 07-31-2025, 06:58 PM
Samsung bn44-00384a (unknown fried IC) by kogi Started by kogi, 07-15-2025, 12:27 AM	2 responses 51 views 0 reactions	Last Post by Jbeni 07-26-2025, 05:43 PM
ADP-160FR ps4 slim PSU, shuts down under load and has severe coil whine. by Gjackson Started by Gjackson, 01-13-2024, 10:34 AM	32 responses 1,835 views 0 reactions	Last Post by playgoods 07-23-2025, 10:32 PM
Norcold DE-0061 AC/DC power supply inductor? by repair-it Started by repair-it, 07-22-2025, 06:38 PM	5 responses 38 views 0 reactions	Last Post by lotas 07-23-2025, 05:05 PM
Russound CA4 Power Supply Repair by CMCM Started by CMCM, 07-03-2025, 01:12 PM	15 responses 176 views 0 reactions	Last Post by CMCM 07-16-2025, 07:11 AM
Troubleshooting Cramer RV power supply by madan1 Started by madan1, 07-12-2025, 11:44 AM	6 responses 90 views 0 reactions	Last Post by madan1 07-15-2025, 05:51 AM
Seasonic Focus Plus 650 Gold (SSR-650FX) make PC restart especially when higher load by ary89 Started by ary89, 06-27-2025, 11:58 PM	12 responses 148 views 0 reactions	Last Post by Agent24 07-14-2025, 01:53 PM
yx-305d bench power supply decreasing voltage problem by ashan000 Started by ashan000, 07-12-2025, 08:43 PM	5 responses 70 views 0 reactions	Last Post by Agent24 07-13-2025, 02:24 PM

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