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 12,595 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 590,320 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 1,390,631 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 7,522 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 124,920 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 69,015 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 221,124 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 435,366 views 0 reactions	Last Post by jvyt 06-25-2009, 01:40 AM
0500-0507-0740 Vizio Power Supply Lights Flashing by kevinjo Started by kevinjo, 09-07-2019, 01:08 PM	6 responses 2,972 views 0 reactions	Last Post by kevinjo 09-23-2019, 11:43 PM
iMac G3 Lime Green (M5521) power supply by jantoman Started by jantoman, 07-13-2019, 03:10 AM	16 responses 4,421 views 0 reactions	Last Post by jantoman 09-18-2019, 09:06 AM
Please help identify component, repairing NSX PSU, PSA-6700p by debugtimog Started by debugtimog, 09-11-2019, 02:41 AM	2 responses 1,809 views 0 reactions	Last Post by debugtimog 09-13-2019, 09:45 PM
APC Back-UPS Pro BP1000I Issue. by CidiRome Started by CidiRome, 09-05-2019, 04:10 AM	3 responses 1,680 views 0 reactions	Last Post by budm 09-06-2019, 11:17 PM
Component identification - weird resistor by FrozenHaxor Started by FrozenHaxor, 09-06-2019, 12:22 PM	15 responses 2,279 views 0 reactions	Last Post by R_J 09-06-2019, 05:50 PM
Whirlpool gas oven ps/control board burnt resistor by greezmky Started by greezmky, 08-31-2019, 02:49 AM	38 responses 4,243 views 0 reactions	Last Post by greezmky 09-03-2019, 01:56 PM
operational amplifier used in a ups(LM324) by Alimash Started by Alimash, 08-20-2019, 11:58 PM	3 responses 3,317 views 0 reactions	Last Post by Alimash 08-25-2019, 03:07 AM
IDX camera power supply turns off after a while by zx81 Started by zx81, 08-09-2019, 11:38 AM	8 responses 9,873 views 0 reactions	Last Post by frica 08-22-2019, 10:46 AM
Videoton VT-110, XT clone PSU repair by pdavid Started by pdavid, 06-23-2019, 02:27 PM	11 responses 4,282 views 0 reactions	Last Post by momaka 08-18-2019, 10:01 AM
Help please, Line + 5VSB increases the voltage. by SoporteHR Started by SoporteHR, 08-10-2019, 06:14 PM	7 responses 6,063 views 0 reactions	Last Post by Agent24 08-15-2019, 06:05 PM
230VAC PSU connected to 400VAC by electroBriedis Started by electroBriedis, 08-07-2019, 10:27 PM	6 responses 2,439 views 0 reactions	Last Post by Per Hansson 08-10-2019, 08:13 AM
Canon IP2770 psu K30322 schematics by Duranitron Started by Duranitron, 08-07-2019, 01:11 AM	0 responses 3,798 views 0 reactions	Last Post by Duranitron 08-07-2019, 01:11 AM
Bypassing Passive PFC In ATX Power Supplies by Hitto Started by Hitto, 06-21-2019, 05:54 AM	11 responses 7,511 views 0 reactions	Last Post by Hitto 08-04-2019, 08:03 AM
Separated Area For +5VSB Additional Filtering by Hitto Started by Hitto, 08-01-2019, 02:02 PM	11 responses 7,996 views 0 reactions	Last Post by Hitto 08-04-2019, 07:31 AM
Vision Fitness T9700 treadmill motor controler/power suuply dead by shelby5041 Started by shelby5041, 07-12-2019, 06:04 AM	37 responses 7,811 views 0 reactions	Last Post by shelby5041 07-24-2019, 06:48 PM
Forcing power supply on by jumpering PSON. by JonathanAnon Started by JonathanAnon, 06-14-2014, 11:57 AM	9 responses 4,469 views 0 reactions	Last Post by budm 07-22-2019, 08:53 PM
Different primary capacitors in ATX Power Supply by Hitto Started by Hitto, 07-04-2019, 02:55 AM	7 responses 6,913 views 0 reactions	Last Post by momaka 07-20-2019, 10:27 AM
Smart Charger 29 volts @ 1 amp how do I change it 25 volts by sam_sam_sam Started by sam_sam_sam, 07-07-2019, 09:25 AM	11 responses 2,908 views 0 reactions	Last Post by sam_sam_sam 07-14-2019, 05:43 PM
PS pcb 50418e1 rev 1.b by Nawual Started by Nawual, 06-26-2019, 07:40 AM	2 responses 1,848 views 0 reactions	Last Post by Nawual 07-14-2019, 11:15 AM
The windings of an ATX transformer & other by Atoss Started by Atoss, 07-10-2019, 03:44 PM	2 responses 1,544 views 0 reactions	Last Post by Atoss 07-11-2019, 03:45 AM
Evga 600w first repairing a PSU by dj_ricoh Started by dj_ricoh, 07-08-2019, 12:59 PM	8 responses 2,577 views 0 reactions	Last Post by stj 07-10-2019, 02:42 AM
LPK12-450W safety capacitor shorted by Taruga Started by Taruga, 06-22-2019, 06:32 AM	22 responses 3,910 views 0 reactions	Last Post by dmill89 07-07-2019, 11:44 AM
Fsp raider ra 750 by Taruga Started by Taruga, 06-21-2019, 07:24 AM	9 responses 2,186 views 0 reactions	Last Post by momaka 07-06-2019, 08:44 PM
Problem with UPS 850 by aliiash Started by aliiash, 07-04-2019, 06:05 AM	4 responses 1,376 views 0 reactions	Last Post by SoporteHR 07-05-2019, 04:47 AM
Power supply PF pin question. by debugtimog Started by debugtimog, 07-04-2019, 04:51 AM	2 responses 1,289 views 0 reactions	Last Post by R_J 07-04-2019, 03:57 PM
iOttie Automotive Wireless Charger - No +5V on one output by fuxxy Started by fuxxy, 07-01-2019, 11:58 AM	3 responses 1,425 views 0 reactions	Last Post by fuxxy 07-01-2019, 05:23 PM
Identifying IC & troubleshooting TP.MS3463S.PB782 by Trofazni Started by Trofazni, 06-13-2019, 05:30 PM	4 responses 4,396 views 0 reactions	Last Post by sam_sam_sam 06-14-2019, 11:38 PM
Lexmark 544dn power supply clicking sound model 40x5409 by Jluxster Started by Jluxster, 06-03-2019, 09:31 PM	12 responses 2,116 views 0 reactions	Last Post by SoporteHR 06-12-2019, 06:15 AM
Delta DPS-400GB-1A Troubleshoot (xserve) by brianc Started by brianc, 12-07-2010, 10:49 AM	51 responses 27,024 views 0 reactions	Last Post by vincentm 06-10-2019, 06:03 AM
SMPS mains input voltage question by Dannyx Started by Dannyx, 06-04-2019, 12:52 PM	11 responses 1,569 views 0 reactions	Last Post by redwire 06-07-2019, 12:43 PM
Unusual resistor in power supply - help ? by Dannyx Started by Dannyx, 05-30-2019, 12:39 AM	21 responses 2,863 views 0 reactions	Last Post by Dannyx 06-06-2019, 07:56 AM
Linear PSUs with high output V by madan1 Started by madan1, 05-31-2019, 07:09 PM	8 responses 1,521 views 0 reactions	Last Post by budm 06-01-2019, 01:10 PM
apc SUA1500 Repair by quantumleap Started by quantumleap, 03-16-2016, 11:39 AM	9 responses 3,128 views 0 reactions	Last Post by Mumxek 06-01-2019, 12:01 PM
LG 60PK250 POWER SUPPLY EAX61432501 clicking by jones Started by jones, 10-25-2017, 07:04 PM	13 responses 5,760 views 0 reactions	Last Post by daltonjr. 05-21-2019, 03:03 PM
ATX recommended ripple measurement methods by Agent24 Started by Agent24, 05-19-2019, 06:10 PM	3 responses 1,484 views 0 reactions	Last Post by Agent24 05-19-2019, 09:41 PM
power supply output only 7.7v instead 24v by buchman Started by buchman, 05-04-2019, 10:24 AM	8 responses 1,818 views 0 reactions	Last Post by budm 05-19-2019, 04:35 PM
FSP250-50MSP PSU from MSI Hetis G31 Barebone 250W by sententia Started by sententia, 12-27-2013, 03:34 PM	21 responses 7,121 views 0 reactions	Last Post by MHTSOS 05-13-2019, 12:39 AM
NZXT 700w Hale82 v2 (Repair Help) by leotron Started by leotron, 04-02-2019, 08:50 PM	13 responses 3,098 views 0 reactions	Last Post by R_J 05-06-2019, 06:20 PM
Xbox One power brick repair by Dannyx Started by Dannyx, 04-25-2019, 09:12 AM	7 responses 2,953 views 0 reactions	Last Post by Dannyx 05-06-2019, 06:20 AM
Please help identify unmark glass diode by debugtimog Started by debugtimog, 05-01-2019, 09:02 PM	6 responses 1,372 views 0 reactions	Last Post by MHTSOS 05-06-2019, 12:26 AM

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