Troubleshooting Power Supplies and Power Supply Design

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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 581,504 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 1,348,817 views 0 reactions	Last Post by japlytic 09-14-2024, 07:04 PM
Sticky: List of pin compatible pwm/supervisor PSU ICs by Quaddro Started by Quaddro, 12-06-2019, 02:54 AM	18 responses 12,228 views 0 reactions	Last Post by tartuf 01-17-2023, 06:36 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 7,399 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 124,724 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 68,868 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 220,766 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 434,452 views 0 reactions	Last Post by jvyt 06-25-2009, 01:40 AM
Corshair RM750 - doesn't allow for board to turn on by kotel studios Started by kotel studios, 07-20-2025, 05:02 AM	24 responses 213 views 0 reactions	Last Post by kotel studios Today, 07:38 AM
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 23 views 0 reactions	Last Post by CapLeaker 08-10-2025, 11:13 AM
Delta DPS-800GB Power Supply No Power by torgeson5kqs Started by torgeson5kqs, 09-11-2012, 06:49 PM	40 responses 31,241 views 0 reactions	Last Post by Rainbow 08-06-2025, 01:53 AM
Transistor replacement for L240AS-00 by Winston Chadwick Started by Winston Chadwick, 08-16-2016, 02:17 PM	14 responses 6,022 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 55 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 42 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 1,650 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 34 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 147 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 74 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 117 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 52 views 0 reactions	Last Post by Agent24 07-13-2025, 02:24 PM
Hitachi drill charger UC18YKL by arsharpe Started by arsharpe, 07-12-2025, 11:53 AM	5 responses 51 views 0 reactions	Last Post by CapLeaker 07-13-2025, 10:35 AM
Repair Success! Middle Atlantic UPS2200R-IP by valvashon Started by valvashon, 02-06-2024, 12:54 PM	5 responses 341 views 0 reactions	Last Post by schmidtparty 07-09-2025, 10:45 AM
Agilent 33220A 20 MHz Function Generator by jason123 Started by jason123, 07-01-2025, 08:12 AM	26 responses 214 views 0 reactions	Last Post by jason123 07-08-2025, 06:57 AM
APC UPS 2200XLI error 0008 by circuito Started by circuito, 07-03-2025, 10:18 AM	3 responses 47 views 0 reactions	Last Post by CapLeaker 07-04-2025, 02:26 PM
Replacing resistor fuse in Sony DV charger by corrize Started by corrize, 06-30-2025, 06:59 PM	7 responses 103 views 0 reactions	Last Post by Agent24 07-03-2025, 08:47 PM
Asus 3-pin charger resistor by EnricoS92 Started by EnricoS92, 01-20-2019, 07:09 AM	2 responses 1,368 views 0 reactions	Last Post by stj 07-02-2025, 02:40 AM
Pure Discovr Bluetooth speaker not charging possible bms problem. by thesame Started by thesame, 06-30-2025, 01:35 PM	0 responses 51 views 0 reactions	Last Post by thesame 06-30-2025, 01:35 PM
Teami Skincare Fridge TM10L power board goes kablooey by lkvee Started by lkvee, 06-02-2025, 11:09 AM	9 responses 90 views 0 reactions	Last Post by stj 06-30-2025, 04:39 AM
Tripp-lite SMART1000LCD not charging, no emergency power! by Eddie3 Started by Eddie3, 01-16-2024, 05:01 PM	7 responses 653 views 0 reactions	Last Post by Eddie3 06-29-2025, 08:30 AM
APC Smart UPS SUA1500 does not detect AC / doesn't turn on by CapLeaker Started by CapLeaker, 07-26-2024, 02:48 PM	53 responses 1,196 views 0 reactions	Last Post by petehall347 06-28-2025, 07:15 PM
How Can I test PWM DM0365R? by chth96 Started by chth96, 06-18-2025, 04:14 PM	10 responses 121 views 0 reactions	Last Post by chth96 06-27-2025, 04:36 AM
555 based power supply getting too hot by madan1 Started by madan1, 06-23-2025, 04:38 PM	14 responses 110 views 0 reactions	Last Post by CapLeaker 06-27-2025, 03:37 AM
Global AC logic output - XP Power FleXPower by tony359 Started by tony359, 06-20-2025, 03:06 PM	6 responses 55 views 0 reactions	Last Post by tony359 06-22-2025, 12:43 PM
APC SMART SUA 2200 XL 640-0800G REV 7 cannot detect any load placed by jamespeterh Started by jamespeterh, 06-21-2025, 06:19 PM	0 responses 37 views 0 reactions	Last Post by jamespeterh 06-21-2025, 06:19 PM
Help with acbel pch018 by lpzrules Started by lpzrules, 06-20-2025, 04:21 AM	0 responses 26 views 0 reactions	Last Post by lpzrules 06-20-2025, 04:21 AM
Optiplex power supply dead by Luke Mawdesley Started by Luke Mawdesley, 04-16-2025, 03:36 PM	38 responses 296 views 0 reactions	Last Post by stj 06-13-2025, 04:29 AM
Artesyn 3T12AP DC to DC regulator by rtstorm Started by rtstorm, 05-27-2025, 04:12 PM	24 responses 439 views 0 reactions	Last Post by stj 06-13-2025, 04:26 AM
Help needed identify Diode - PSU FSP Hexa 500W by spintop Started by spintop, 06-14-2019, 08:59 PM	7 responses 1,622 views 0 reactions	Last Post by ChanHa 06-07-2025, 04:19 PM
dl-p2507fwp rev:H01 schematic by Mediatechy Started by Mediatechy, 06-04-2025, 05:27 AM	1 response 45 views 0 reactions	Last Post by momaka 06-07-2025, 10:01 AM
test active pfc power with lamp test by khelane Started by khelane, 06-03-2025, 01:00 AM	7 responses 87 views 0 reactions	Last Post by momaka 06-07-2025, 09:39 AM
PILZ PNOZ X4 Safety Relay by fadi90 Started by fadi90, 06-07-2025, 01:21 AM	1 response 37 views 0 reactions	Last Post by Per Hansson 06-07-2025, 06:34 AM
Behringer F1320D Floor Monitor (300W) by welldigger99 Started by welldigger99, 05-14-2025, 09:47 AM	11 responses 191 views 0 reactions	Last Post by Agent24 06-01-2025, 01:17 AM
What Zener Diodes on a Linear Power Supply by caspian Started by caspian, 05-26-2025, 12:38 PM	4 responses 70 views 0 reactions	Last Post by caspian 05-27-2025, 01:45 AM
HP Z800 1250w PSU not powering on by m_12adel Started by m_12adel, 04-13-2023, 02:59 PM	4 responses 1,109 views 0 reactions	Last Post by CapLeaker 05-23-2025, 07:50 PM
Samsung SMPS BN44-00339A by Loretto Started by Loretto, 03-29-2025, 08:30 AM	1 response 121 views 0 reactions	Last Post by Loretto 05-22-2025, 09:18 AM
APC BE650G2-UK surge strip UPS - not powering? by spleenharvester Started by spleenharvester, 05-19-2025, 05:15 AM	6 responses 57 views 0 reactions	Last Post by CapLeaker 05-20-2025, 03:54 PM
Testing ATX PSUs under load - Does loading the ATX 24 pin also load EPS & PCIE? by AJ847.63e Started by AJ847.63e, 05-06-2025, 10:37 PM	5 responses 111 views 0 reactions	Last Post by AJ847.63e 05-18-2025, 07:30 PM
PC Power Supply with shorted 3.3V by Askic Started by Askic, 05-07-2025, 05:30 AM	9 responses 182 views 0 reactions	Last Post by jonnyGURU 05-16-2025, 09:00 PM

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