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Search: Posts Made By: R_J
Forum: Troubleshooting Power Supplies and Power Supply Design Yesterday, 06:05 PM
Replies: 1
Views: 33
Posted By R_J
Re: Black & Decker 1000 Watt 8.5 Amp inverter help.

What about the number that is printed on the mosfet? If the mosfet blew the plastic off, check in the case for the piece of plastic, it might have the number
as for a schematic.... not much of a...
Forum: Troubleshooting TVs and Video Sources Yesterday, 11:23 AM
Replies: 15
Views: 6,294
Posted By R_J
Re: Samsung S64FH Sound but no picture then no power

That board looks close to a BN44-00273 or BN44-00274
Forum: General Electronics Technical Discussion Yesterday, 08:53 AM
Replies: 14
Views: 173
Posted By R_J
Re: Alps 50KAX2 12mm shaft

It looks like your original pot has the second wafer mounted closer to the motor end on the shaft so check the distance from the front wafer to the gear mount, it may only be the second wafer that is...
Forum: Troubleshooting TVs and Video Sources Yesterday, 08:11 AM
Replies: 6
Views: 71
Posted By R_J
Re: Panasonic TC-P65VT30 No Power, No LED

pin1 of P6 is the power supply on/off pin, it will change from 0 to 3.3 volts or 3.3 to 0 volts when the power button is pressed, IF the main board is working, but I suspect the main is bad
Look at...
Forum: Troubleshooting TVs and Video Sources 06-18-2019, 09:26 PM
Replies: 6
Views: 71
Posted By R_J
Re: Panasonic TC-P65VT30 No Power, No LED

If you have STB+5V on P6(6) going to the main baord, and you don't have any voltage (or voltage change) on P6(1) PANEL_MAIN_ON when the power button is pressed, I would start checking the main board,...
Forum: General Electronics Technical Discussion 06-18-2019, 04:48 PM
Replies: 12
Views: 149
Posted By R_J
Re: Microwave issue

If you program 5:00 min, does it count down ok and reset when it reaches 0:59 or does it reset at 4:59, If you program 0:50 does it count down ok?
I suspect the microprocessor has an issue, I seem...
Forum: Troubleshooting TVs and Video Sources 06-18-2019, 10:41 AM
Replies: 8
Views: 298
Posted By R_J
Re: Vizio e320-a1 eeprom dump?

Good to here, This was taken from a tv that had an issue with the eeprom and I had to freeze the eeprom to get a good read, then reprogramed a new ic.
Forum: Troubleshooting TVs and Video Sources 06-18-2019, 10:35 AM
Replies: 2
Views: 57
Posted By R_J
Re: Panasonic TC-42LD24 10 Blinks only at customers house

It could be the power supply board, possibly something with the F15 volt supply, It supplies the lower voltages and if it has an issue it might be that the SUB_3.3V is the first to detect the fault...
Forum: Troubleshooting TVs and Video Sources 06-17-2019, 11:06 PM
Replies: 8
Views: 298
Posted By R_J
Re: Vizio e320-a1 eeprom dump?

Well it took me 20 tries but it finally uploaded, hope it works for you
Forum: Troubleshooting TVs and Video Sources 06-17-2019, 08:58 PM
Replies: 8
Views: 298
Posted By R_J
Re: Vizio e320-a1 eeprom dump?

I think this is the one that works, its been 4 years and I don't have any other information like board number etc.
Whenever I try and upload a file larger than a couple megs I get this error
Sorry...
Forum: General Electronics Technical Discussion 06-17-2019, 07:23 PM
Replies: 12
Views: 149
Posted By R_J
Re: Microwave issue

If the display is dropping out and the clock needs to be reset, you must be loosing the main a/c in somewhere.
I would check the connections and any thermal cutouts in the line from the cord to the...
Forum: General Electronics Technical Discussion 06-17-2019, 05:12 PM
Replies: 12
Views: 149
Posted By R_J
Re: Microwave issue

without pictures its hard to tell but are there any relays on the control board? if there are, resolder there connections.
When the mwo shuts down do you loose the display?
Monitor the voltage on...
Forum: Troubleshooting Computer Displays 06-17-2019, 04:49 PM
Replies: 2
Views: 88
Posted By R_J
Re: LG 23EA53 black screen after one second, it works after 5 minutes, high pitched s

The 33f 100v, is the main filter for the led string voltage. It is likely bad, those little caps don't have much inside to make much of a bulge
Forum: Troubleshooting TVs and Video Sources 06-17-2019, 04:11 PM
Replies: 11
Views: 171
Posted By R_J
Re: Samsung UE37C6000 blows fuses

The resistors are ok, they don't short they go open. the values are less than 1Ω
Forum: General Electronics Technical Discussion 06-17-2019, 03:57 PM
Replies: 28
Views: 1,957
Posted By R_J
Re: Open Neutral you say? A story of carnage at Gooontrons house.

That might be illegal in the usa but not everywhere, in Canada the service comes into the meter and goes straight to the panel main breaker totally legal
Forum: Troubleshooting Game Consoles & Other Weird Devices 06-17-2019, 03:42 PM
Replies: 13
Views: 222
Posted By R_J
Re: NordicTrack C700 Treadmill Dead Console

Thats the input to the ic, a 4.7~10f, 25~50v cap will be fine. find a regular electolytic around 10f solder it in place and see if the circuit works. You can likely try the tredmill without the cap...
Forum: Troubleshooting TVs and Video Sources 06-17-2019, 12:16 PM
Replies: 1
Views: 47
Posted By R_J
Re: samsung power supply

all the information should be printed on the board, check the voltage on JP817
The first thing you need is standby voltage, without it you will have nothing.

The plugs have numbers IE: CNL802,...
Forum: Troubleshooting Audio Equipment 06-17-2019, 10:31 AM
Replies: 2
Views: 49
Posted By R_J
Re: Technics SL-3 Turntable

Remove the platter and check the spindle bearing, if it spins without the noise, check where the platter turns and make sure there is nothing that can touch the platter
Forum: General Electronics Technical Discussion 06-17-2019, 09:19 AM
Replies: 14
Views: 173
Posted By R_J
Re: Alps 50KAX2 12mm shaft

https://www.ebay.com/itm/351631436027 I did't look close enough at my first post, it was indeed the wrong style pot this should be a lot closer
The original might be a custom pot, as for the...
Forum: Troubleshooting TVs and Video Sources 06-16-2019, 09:55 PM
Replies: 22
Views: 135
Posted By R_J
Re: BenQ W1070 Projector 5v rail

There does seem to be a dozen caps on the TVDD_3.3V line and 5 on the CVDD_1.8V line, You can use a 1.5 volt battery and with ground connected, touch the positive from the battery to the shorted line...
Forum: Troubleshooting Game Consoles & Other Weird Devices 06-16-2019, 09:31 PM
Replies: 13
Views: 222
Posted By R_J
Re: NordicTrack C700 Treadmill Dead Console

It might be hard to track down the short but what you can do is (if you don't have a bench power supply) use a 9 volt battery, connect the [-] to ground and touch the [+] to the 12 volt input. dont...
Forum: Troubleshooting TVs and Video Sources 06-16-2019, 08:37 PM
Replies: 2
Views: 49
Posted By R_J
Re: Hitachi 50" blown mosfet

It's a AP65SL190AI, here is the datasheet. I did't check all the specs but FCPF190N65FL1 might be a sub
Power supply # TV5006-ZC02-02
Forum: Troubleshooting TVs and Video Sources 06-16-2019, 05:57 PM
Replies: 4
Views: 51
Posted By R_J
Re: LG 50PK350 Stuck in Standby not clicking

If you have stby voltage going to the main board, you should see the RL_ON pin change when you press the power button, I don't believe this power supply has pullup resistors for the RL_ON so you...
Forum: Troubleshooting TVs and Video Sources 06-16-2019, 05:09 PM
Replies: 22
Views: 135
Posted By R_J
Re: BenQ W1070 Projector 5v rail

I would guess that U29 is bad, I looked up the number from the schematic but find nothing. That ic does handle the hdmi signals.
I never did like hdmi, I have seen more blown ic's etc on hdmi inputs...
Forum: Troubleshooting TVs and Video Sources 06-16-2019, 03:21 PM
Replies: 22
Views: 135
Posted By R_J
Re: BenQ W1070 Projector 5v rail

When you say shorted, what is the actual resistance, Is the noise from the main power supply or from the lamp inverter?
Showing results 1 to 25 of 500

 
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