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Search: Posts Made By: petehall347
Forum: Troubleshooting Power Supplies and Power Supply Design 07-03-2022, 06:43 PM
Replies: 11
Views: 148
Posted By petehall347
Re: TS1102A datasheet wanted

interesting thanks .. wondering what the +N0412 is .
Forum: Troubleshooting Power Supplies and Power Supply Design 07-03-2022, 10:39 AM
Replies: 11
Views: 148
Posted By petehall347
Re: TS1102A datasheet wanted

i know there isnt a datasheet but is it possible to read a good one and program a new one ?
the old one is dead but have access to a good working one .
Forum: Troubleshooting Power Supplies and Power Supply Design 07-03-2022, 10:32 AM
Replies: 15
Views: 684
Posted By petehall347
Re: 80v charger blown caps .

ok its dead jim . will grab the other charger just to be 100 percent certain .
Forum: Troubleshooting Power Supplies and Power Supply Design 07-03-2022, 10:05 AM
Replies: 15
Views: 684
Posted By petehall347
Re: 80v charger blown caps .

it appears the mcu has managed to short out internally . have tried removing some ceramic caps thinking it might be one of those but no joy . the 5v feed to has 2 ohms to ground ..will remove the ic...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-03-2022, 08:54 AM
Replies: 15
Views: 684
Posted By petehall347
Re: 80v charger blown caps .

well the bloody thing wont even try to start up today .. all i did was look for shorts and anything else obvious . there was a burning smell yesterday that i didn't find where it was coming from .i...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-03-2022, 05:19 AM
Replies: 11
Views: 148
Posted By petehall347
Forum: Troubleshooting Power Supplies and Power Supply Design 07-02-2022, 05:18 PM
Replies: 11
Views: 148
Posted By petehall347
TS1102A datasheet wanted

looking for datasheet for above mcu ic .
Forum: Troubleshooting Power Supplies and Power Supply Design 07-02-2022, 11:46 AM
Replies: 15
Views: 684
Posted By petehall347
Re: 80v charger blown caps .

ok have pic of the micro and 2 other chips just for fun ..
i cant find the datasheet yet
Forum: Troubleshooting Power Supplies and Power Supply Design 07-02-2022, 08:40 AM
Replies: 15
Views: 684
Posted By petehall347
Re: 80v charger blown caps .

not figured which pin on mcu just yet as need to remove lacquer of it and get the datasheet .
i have found though if i run it off about 100v mains it starts up and charges for a few minutes then...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-01-2022, 11:21 AM
Replies: 15
Views: 684
Posted By petehall347
Re: 80v charger blown caps .

this thing is back again . different fault this time . the charger is saying bad battery pack but tried other chargers same packs and no problems ..am guessing its whatever makes the charger think...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 06-27-2022, 01:10 PM
Replies: 7
Views: 142
Posted By petehall347
Re: Grr... stupid DPAKs.

preheating the board helps
Forum: Equipment Usage, Soldering, Techniques, and Reviews 06-27-2022, 04:26 AM
Replies: 7
Views: 142
Posted By petehall347
Re: Grr... stupid DPAKs.

hot air and 60/40 should shift it
Forum: Equipment Usage, Soldering, Techniques, and Reviews 06-21-2022, 04:58 PM
Replies: 5
Views: 128
Posted By petehall347
Re: RS PRO Hot Air station 700W

will rs not sell you one ?
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-20-2022, 03:40 PM
Replies: 7
Views: 203
Posted By petehall347
Re: How can we prevent 19v entering SOC?

clamp or crowbar spring to mind
Forum: General Electronics Technical Discussion 06-16-2022, 05:02 PM
Replies: 6
Views: 201
Posted By petehall347
Re: Thermistor specs and cross reference

100k according to internet .. ntc thermistor .
Forum: Troubleshooting Audio Equipment 06-16-2022, 04:18 AM
Replies: 13
Views: 312
Posted By petehall347
Re: DMR115 , Makita on site radio

wait till you find the custom ones that only the manufacturers have the correct tools .
such as these ..
https://www.fastenright.com/brand/ultra-drive
Forum: Troubleshooting Power Supplies and Power Supply Design 06-15-2022, 12:54 PM
Replies: 18
Views: 419
Posted By petehall347
Re: equivalent for HT3582DM

quick follow up ..5 chips arrived from china . first one charging at 4.3v . not happy so randomly picked another one 4.12v . i think that's near enough .
Forum: General Electronics Technical Discussion 06-15-2022, 04:02 AM
Replies: 47
Views: 888
Posted By petehall347
Re: BAUN - UVST - 0617,Can anybody Identify these Please?

what is the black socket on the right for ? u1 looks like it may connect to it
Forum: General Electronics Technical Discussion 06-12-2022, 02:45 AM
Replies: 4
Views: 185
Posted By petehall347
Re: Looking for fuse specs HRC , Fuse Link, Type A350/5

https://www.eaton.com/gb/en-gb/catalog/electrical-circuit-protection/bussmann-low-voltage-british-standard-bs88-fuses.html
Forum: Troubleshooting Audio Equipment 06-04-2022, 06:13 PM
Replies: 12
Views: 438
Posted By petehall347
Re: Dynacord PowerMate 600 Powered Mixer - Protect Light On

if i was seeing it right the repair could have been better as one track is now doing the work of 2 tracks .
Forum: General Electronics Technical Discussion 06-02-2022, 06:34 PM
Replies: 7
Views: 284
Posted By petehall347
Re: Can not find Model/Value of Thermistor.

is the rest of the circuit actually there for the intended thermistor ?
Forum: General Electronics Technical Discussion 05-30-2022, 07:34 AM
Replies: 13
Views: 339
Posted By petehall347
Re: Ohms Law question - kind of ...

if i calculated right about 50 amps for 5 minutes
Forum: General Electronics Technical Discussion 05-30-2022, 07:22 AM
Replies: 13
Views: 339
Posted By petehall347
Re: Ohms Law question - kind of ...

highest rating you can get is 3.6AH as far as i know .
Forum: Troubleshooting TVs and Video Sources 05-26-2022, 07:45 AM
Replies: 4
Views: 1,326
Posted By petehall347
Re: BenQ MX763 Projector

wonder if he still has it as thread started 7 years ago
Forum: General Electronics Technical Discussion 05-25-2022, 10:50 AM
Replies: 10
Views: 316
Posted By petehall347
Re: Component identification

looks like a rifa safety capacitor to me
Showing results 1 to 25 of 500

 
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