Badcaps.net Forum
Go Back   Badcaps Forums > Search Forums
Register FAQ Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 25 of 500
Search took 0.10 seconds.
Search: Posts Made By: R_J
Forum: Troubleshooting TVs and Video Sources Today, 07:54 PM
Replies: 30
Views: 278
Posted By R_J
Re: 2011 Panasonic TC-P50S30 IS DEAD

I think you missread that, it says to momentarily ground pin 8 of A1, which is just bypassing the power switch. [key3]
This seems to be refering to the tc-p50sT30 gpf14du chassis. The tc-p50s30, A1...
Forum: General Electronics Technical Discussion Today, 05:37 PM
Replies: 8
Views: 51
Posted By R_J
Re: Help to identify a vintage IC

U12 pin 1 seems to be connected to +5v (triangle with lines) Pin 2 via r112 (22Ω)to +5TRKL.
Without the complete schematic its hard to say where pin 8 (triangle) also goes other than where I...
Forum: General Electronics Technical Discussion Today, 05:15 PM
Replies: 8
Views: 51
Posted By R_J
Re: Help to identify a vintage IC

Max801 or max808, looks like pin 8 output connects to R120 and R83 and maybe elswhere? S1 is likely refered to as the cuda switch
Forum: Troubleshooting TVs and Video Sources Today, 04:07 PM
Replies: 2
Views: 17
Posted By R_J
Re: Insignia ns-48d510na15

You can not check the resistance of the led string, if you get 226 across the leads going to the led's in the panel, the leds should light up for a second at least, if they do not you likely have bad...
Forum: General Electronics Technical Discussion Today, 02:14 PM
Replies: 8
Views: 51
Posted By R_J
Re: Help to identify a vintage IC

I would guess its a Pram storage, similar to cmos time/date backup in a pc. S1 could be the clear "cmos" switch?
It might help if we knew which computer etc. it is used in.
Forum: Troubleshooting TVs and Video Sources 07-13-2018, 03:17 PM
Replies: 62
Views: 314
Posted By R_J
Re: Lg 50pj550 no STBY light

Did you check R305? what resistance did you measure?
The transformer is likely ok and the DC resitance of the windings will very low. You do know these circuits operate at high frequency, 67kHz,...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-13-2018, 11:17 AM
Replies: 41
Views: 462
Posted By R_J
Re: Miller 375 Plasma Burt Cap..

It looks like they used a ceramic resistor originally, 10 ohm
Digikey A102453-ND or TWW5J10RE-ND (5watt); A103695-ND (7 watt); A131255-ND (10 watt)

If that ptc is too large there are likely...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-13-2018, 11:01 AM
Replies: 41
Views: 462
Posted By R_J
Re: Miller 375 Plasma Burt Cap..

I posted this: This digikey 570-1024-ND would likely work but it is $9.24
Forum: Troubleshooting Power Supplies and Power Supply Design 07-13-2018, 09:12 AM
Replies: 41
Views: 462
Posted By R_J
Re: Miller 375 Plasma Burt Cap..

There is a bit of information here https://www.elektroda.pl/rtvforum/topic3329021.html
Here is a translate of the miller reply to the person
Forum: Troubleshooting TVs and Video Sources 07-12-2018, 11:38 AM
Replies: 30
Views: 278
Posted By R_J
Re: 2011 Panasonic TC-P50S30 IS DEAD

R 104 is the white ceramic resistor near the relays, But like I said it is likely ok. F401 is the fuse for the standby voltage, since standby is on 24/7 the fuse may be slightly discolored, nothing...
Forum: Troubleshooting TVs and Video Sources 07-12-2018, 11:00 AM
Replies: 30
Views: 278
Posted By R_J
Re: 2011 Panasonic TC-P50S30 IS DEAD

I thought of checking R104, but it must be ok if you have standby voltage. Have you checked all the fuses on the power supply board?
Forum: Troubleshooting Power Supplies and Power Supply Design 07-11-2018, 09:55 PM
Replies: 41
Views: 462
Posted By R_J
Re: Miller 375 Plasma Burt Cap..

I did find a similar item on alibaba
Forum: Troubleshooting Power Supplies and Power Supply Design 07-11-2018, 06:06 PM
Replies: 41
Views: 462
Posted By R_J
Re: Miller 375 Plasma Burt Cap..

Does it have 4 legs or 5 ? it could be similar to the ALFET ALF08NP16V5 but this is a fet, the schematic shows similar but with transistors. So it's a TO-247-5 package
You could use Go Advanced and...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-11-2018, 05:27 PM
Replies: 41
Views: 462
Posted By R_J
Re: Miller 375 Plasma Burt Cap..

So they are replacing the 10Ω resistor with a ptc thermistor? too bad they don't provide a picture of the 200656.

I guess that resistor was a 10Ω, I hate when they mark 100 and its actually 10...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-11-2018, 05:05 PM
Replies: 41
Views: 462
Posted By R_J
Re: Miller 375 Plasma Burt Cap..

Do you have a picture of the original R123 ptc thermistor? or did they have that white ceramic resistor in its place?
Forum: Troubleshooting Power Supplies and Power Supply Design 07-11-2018, 02:39 PM
Replies: 32
Views: 1,512
Posted By R_J
Re: Replacing unknown NTC Thermistor in Corsair CX400

I found this atx schematic and it uses a SCK-2R58 ntc, this is a 300watt supply
Forum: Troubleshooting TVs and Video Sources 07-11-2018, 11:45 AM
Replies: 5
Views: 50
Posted By R_J
Re: Vizio E55-D0 Picture Flashes

When there is no signal the backlights are usually lowered, so it still could be a backlight issue, Go into the menu and lower the backlight adjustment and see if the flashing changes.
Forum: Troubleshooting TVs and Video Sources 07-11-2018, 11:32 AM
Replies: 9
Views: 92
Posted By R_J
Re: LG 32le4900 issue

There are 2 rows of pins (24 total) on that plug that goes to the main board the pins you labeled 2,3 & 4 are just +12 volts, the PDIM, ADIM, DV_ON are on the other row
On 1..NC ERROR = 0, you are...
Forum: Troubleshooting TVs and Video Sources 07-11-2018, 11:00 AM
Replies: 9
Views: 92
Posted By R_J
Re: LG 32le4900 issue

I think he made that mark during testing, shorting that +24 volt pin to ground

When that plug is at that angle you are removing the error signal from the led driver board
You could also check if...
Forum: Troubleshooting TVs and Video Sources 07-10-2018, 08:35 PM
Replies: 12
Views: 114
Posted By R_J
Re: Samsung 58" Plasma TV (FPT5884X/XXA) keeps turning itself off + clicking

Check your standby voltage, it should be +5.2 volts, then check the voltage out of ICQ802, it is the +15 volt regulator that drives the relays, I believe it is located near the 2 relays, to measure...
Forum: General Electronics Technical Discussion 07-10-2018, 05:00 PM
Replies: 34
Views: 2,480
Posted By R_J
Re: RYOBI-one charger

D1, R3, R4 are between the ic output and fet gate. When the fet Drain shorted to its gate it will supply full B+ to the gate circuit and IC ! they don't like that. R2 is the current sense feedback...
Forum: General Capacitor Questions & Issues 07-10-2018, 04:21 PM
Replies: 3
Views: 81
Posted By R_J
Re: Toshiba surface mount capacitor identification

68uf 25volt 105C Panasonic EEEFK1E680P
Red Cap= Nichicon FPCAP 330uf 6.3volt
Panasonic OS-CON Series SVPC Conductive Polymer Aluminum Solid Capacitor, 560uf 2.5volt
Forum: Troubleshooting TVs and Video Sources 07-09-2018, 05:12 PM
Replies: 2
Views: 59
Posted By R_J
Re: Samsung UN55D6003 BN44-00424A won't power up

The A5v should be stable, The standby circuit is seperate from the main supplies. shopjimmy has a repair kit for these power supplies, have a look and check the parts it shows to replace, Check the...
Forum: General Electronics Technical Discussion 07-09-2018, 03:53 PM
Replies: 34
Views: 2,480
Posted By R_J
Re: RYOBI-one charger

Yes, one end of the transformer is connected to ground, the other end of the winding should go to a diode, then to a capacitor, and eventually to the output
If you measure the DC resistance on the...
Forum: Troubleshooting TVs and Video Sources 07-09-2018, 10:59 AM
Replies: 15
Views: 207
Posted By R_J
Re: LG 32LF20FR no 12v or 24v on psu!

If you are getting 10-12 volts on the 12 volt line and 0 on the 24 volt line,
Check the connections on the transformer where the red lines are marked, then check the resistance of the transformer...
Showing results 1 to 25 of 500

 
Forum Jump


Badcaps.net Technical Forums 2003 - 2018
Powered by vBulletin ®
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 09:05 PM.

Did you find this forum helpful?