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Search: Posts Made By: petehall347
Forum: Troubleshooting TVs and Video Sources 06-17-2019, 05:42 PM
Replies: 7
Views: 101
Posted By petehall347
Re: Hot air machine question.

should tell you on device data sheet .
Forum: General Electronics Technical Discussion 06-14-2019, 05:36 PM
Replies: 8
Views: 175
Posted By petehall347
Re: Will This Work?

might be easier to adapt a battery holder that is foolproof .
Forum: General Electronics Technical Discussion 06-14-2019, 05:33 PM
Replies: 6
Views: 90
Posted By petehall347
Re: Automotive fuel gauge and sending unit issue

can you not try resistor connected in the right place to get the ohms matching ?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 06-13-2019, 05:28 PM
Replies: 15
Views: 241
Posted By petehall347
Re: Dell 3542 2 beep error

just in case ....https://www.dell.com/support/article/uk/en/ukdhs1/sln153768/what-is-ddr3l-memory
Forum: Troubleshooting TVs and Video Sources 06-12-2019, 05:38 PM
Replies: 4
Views: 69
Posted By petehall347
Re: Checking Mosfets

if in parallel its anyone's guess as to how many shorted .
Forum: General Electronics Technical Discussion 06-03-2019, 03:35 PM
Replies: 27
Views: 462
Posted By petehall347
Re: Need an idea to connect a pump

your pump looks similar to a pump i use .. its a shurflo . very good it is .only problem i have had is the micro-switch corroding but thats my fault letting it get damp

seem to remember to set...
Forum: Troubleshooting Game Consoles & Other Weird Devices 05-31-2019, 05:07 PM
Replies: 2
Views: 146
Posted By petehall347
Re: Xbox One X - HDD issues

is it sat on a carpet ? might be getting too hot
Forum: General Electronics Technical Discussion 05-31-2019, 05:02 PM
Replies: 27
Views: 462
Posted By petehall347
Re: Need an idea to connect a pump

how about a simple on demand pump and pressure vessel plumbed into the water supply ? it gets me a 60 psi shower here .
might have to adjust pump pressure to suit fridge .
Forum: General Electronics Technical Discussion 05-31-2019, 04:55 PM
Replies: 1
Views: 101
Posted By petehall347
Re: Schmatics

i store mine outside in steel filing cabinets . have hundreds of paper manuals for vcr's etc .
Forum: General Electronics Technical Discussion 05-27-2019, 06:49 PM
Replies: 27
Views: 462
Posted By petehall347
Re: Need an idea to connect a pump

try a pressure vessel first . all it needs is pumping up .
Forum: Troubleshooting Audio Equipment 05-22-2019, 06:03 PM
Replies: 34
Views: 359
Posted By petehall347
Re: Crown Amp DC300A - One channel distirted, other good.

in my experience any amp left in a working state then doesn't work properly is either corrosion or dampness got into the board or resistors . corroded connections being the main thing .
Forum: Troubleshooting Audio Equipment 05-22-2019, 05:57 PM
Replies: 34
Views: 359
Posted By petehall347
Re: Crown Amp DC300A - One channel distirted, other good.

always a good idea to use low value blocking capacitor .
Forum: General Electronics Technical Discussion 05-22-2019, 05:14 PM
Replies: 14
Views: 267
Posted By petehall347
Re: Increasing input voltage of DC-AC inverter - possible ?

a good enough amount of heat to run my fridge i would think . although i thought it was only 150 watts inverter that should only draw a few amps .maybe 10 amps .
Forum: Troubleshooting Audio Equipment 05-22-2019, 03:58 PM
Replies: 34
Views: 359
Posted By petehall347
Re: Crown Amp DC300A - One channel distirted, other good.

it wouldn't harm to check all those cement emitter resistors are good
Forum: Troubleshooting Audio Equipment 05-22-2019, 03:56 PM
Replies: 34
Views: 359
Posted By petehall347
Re: Crown Amp DC300A - One channel distirted, other good.

you should use a blocking capacitor on the positive probe to measure AC .also if you use an audio tracer such as headphones . 0.1uf or thereabouts if i remember right
Forum: General Electronics Technical Discussion 05-21-2019, 03:26 PM
Replies: 14
Views: 267
Posted By petehall347
Re: Increasing input voltage of DC-AC inverter - possible ?

can you not use a regulator to drop the 18v to 15v ?
Forum: Troubleshooting Audio Equipment 05-19-2019, 06:22 PM
Replies: 34
Views: 359
Posted By petehall347
Re: Crown Amp DC300A - One channel distirted, other good.

clean the switches and contacts first .
Forum: General Electronics Technical Discussion 05-19-2019, 06:15 PM
Replies: 8
Views: 157
Posted By petehall347
Re: Isolation transformer

be careful using 2 yellow bricks like that .
Forum: Troubleshooting TVs and Video Sources 05-18-2019, 06:24 PM
Replies: 86
Views: 1,058
Posted By petehall347
Re: SHARP LC-80LE633U has open resistor r7133 on PSU

well said . we are all learning regardless of titles .
Forum: Troubleshooting TVs and Video Sources 05-16-2019, 02:01 PM
Replies: 86
Views: 1,058
Posted By petehall347
Re: SHARP LC-80LE633U has open resistor r7133 on PSU

voltage drop due to current draw by the looks of it
Forum: Troubleshooting Audio Equipment 05-16-2019, 01:37 PM
Replies: 31
Views: 301
Posted By petehall347
Re: Broken transformer on Carlsbro GRX7

+ and - 70v for that amp .....https://music-electronics-forum.com/showthread.php?t=19136
Forum: Troubleshooting Audio Equipment 05-15-2019, 06:09 PM
Replies: 31
Views: 301
Posted By petehall347
Re: Broken transformer on Carlsbro GRX7

would spike the secondary then blow the fuse most likely .
Forum: Troubleshooting Audio Equipment 05-15-2019, 06:02 PM
Replies: 31
Views: 301
Posted By petehall347
Re: Broken transformer on Carlsbro GRX7

i would do the 120v also to find secondary voltage and further testing . been there done that .
Forum: Troubleshooting Audio Equipment 05-15-2019, 05:53 PM
Replies: 31
Views: 301
Posted By petehall347
Re: Broken transformer on Carlsbro GRX7

pic 2 post 5 should clear it up .spades go to bridge .
Forum: Troubleshooting Audio Equipment 05-15-2019, 05:51 PM
Replies: 31
Views: 301
Posted By petehall347
Re: Broken transformer on Carlsbro GRX7

are those caps in parallel ?
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