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Search: Posts Made By: ajshoe
Forum: Troubleshooting TVs and Video Sources 03-01-2022, 09:30 PM
Replies: 9
Views: 421
Posted By ajshoe
Re: Defective ShopJimmy LED Strips?

had nothing but good strips from SJ. think you need to lower the brightness as others have posted.
Forum: Troubleshooting TVs and Video Sources 01-04-2022, 02:52 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

quick follow up - bought second main bd and installed it. had 3.3 V at joy stick button connector. put it together and works perfectly. Lesson learned - watch who your buying boards from - lots of...
Forum: Troubleshooting TVs and Video Sources 01-02-2022, 10:33 PM
Replies: 14
Views: 548
Posted By ajshoe
Re: Panasonic TC-P50G10 DEAD

decent tv - can be a nightmare to repair (especially PWB). fixed a couple of these and they are a challenge.
Forum: Troubleshooting TVs and Video Sources 01-02-2022, 09:42 AM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

traced CN201 (main bd conn to PWB) standby voltage to Samsung prop chip sps-HI16.
all buck regulators (found 3) have 0 volts at input with main power on.
I give up - main board is a nightmare to...
Forum: Troubleshooting TVs and Video Sources 01-01-2022, 12:44 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Forum: Troubleshooting TVs and Video Sources 01-01-2022, 12:37 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

joystick button CN1202 Pin 3 (A3.3V) is shorted to ground (joystick is disconnected). USB connector VCC is not attached to LD1117 anywhere. maybe goes thru resistor to USB port. The two LD1117 i...
Forum: Troubleshooting TVs and Video Sources 12-31-2021, 06:30 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

found this training manual - too bad they didn't go over joy stick button testing or 3.3V checking on connector CN1202
also technical service bulletin about main board
Forum: Troubleshooting TVs and Video Sources 12-31-2021, 02:57 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

most likely another chip on that 3.3V line thats shorted out. I read something about this main board having a bad chip - samsung has a tech bulletin out on this board. should have been a recall. ...
Forum: Troubleshooting TVs and Video Sources 12-31-2021, 01:57 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

thanks - I will take a look
Forum: Troubleshooting TVs and Video Sources 12-31-2021, 01:46 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

anybody know how 3.3 volts gets to joy button from main bd from power supply ? anything I should be looking at or Main bd not worth the time ?
Forum: Troubleshooting TVs and Video Sources 12-31-2021, 10:36 AM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

with joy button 8 pin connector disconnected. orig main bd in - all pins had 12-15 Mvolts except ground pin. with new EBAY main bd - all pins had 205 Mvolts except ground. NO 3.3 VOLTS on any main...
Forum: Troubleshooting TVs and Video Sources 12-31-2021, 08:20 AM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

that is my main bd - obviously it has 8 wires. I was looking at post #16 (lotas) pinout. I'll measure voltages shortly and report back.
Forum: Troubleshooting TVs and Video Sources 12-30-2021, 10:23 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

on this tv - only one row of 7 pins goes into that black connector (you show 2 rows but the connector only has 1 row of 7 pins - 7 wires). I may have checked voltages on wrong pins - i'll check them...
Forum: Troubleshooting TVs and Video Sources 12-30-2021, 09:23 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

NOV, 2013
I'll check voltages again tomorrow with joystick connected and disconnected there is only one row of pins - 7 pins. also there is no legend or voltages marked on the main board near the...
Forum: Troubleshooting TVs and Video Sources 12-30-2021, 07:03 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

that is the same joystick button. checked all pins on that connector - no 3.3 volts on any pins. does anybody know the voltages for the connector ?
I made an assumption that the main board was the...
Forum: Troubleshooting TVs and Video Sources 12-30-2021, 05:52 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

what good are the error codes when the led on main just flashes evenly about every second when PS_ON is jumpered ? The led on main board is off when PS_ON is not jumpered
Forum: Troubleshooting TVs and Video Sources 12-30-2021, 05:39 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

no led on main board.
OK - just figured out how to run test patterns. jumpered 3-4 and jumpered PS_ON to ground. PWB came alive and test patterns on screen appeared ! I must have got a bad main...
Forum: Troubleshooting TVs and Video Sources 12-30-2021, 04:26 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

got EBAY main board - no change. anybody have schematic for this set ? whats proper procedure for turning this set on ? simple press of button or hold it for 3 seconds ? Have no lights whatsoever...
Forum: Troubleshooting TVs and Video Sources 12-27-2021, 10:03 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

really stinks that you can't force newer plasma sets on. assume main bd is dead - replace it and if buffers or sustain bd are dead you've wasted $$ and time. seems like newer plasmas are not worth...
Forum: Troubleshooting TVs and Video Sources 12-27-2021, 07:11 PM
Replies: 28
Views: 1,326
Posted By ajshoe
Re: lg-55UH6090-UF DEAD NO STANBY LGHT

LED tester is worth buying if you want to repair these tvs.
Forum: Troubleshooting TVs and Video Sources 12-27-2021, 03:41 PM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

when I first measured it - I read 0 volts (maybe had wrong pin). took PWB off and looked at it - re-soldered 20 cold solder joints - they looked suspicious but not real bad. re-installed board and...
Forum: Troubleshooting TVs and Video Sources 12-27-2021, 10:36 AM
Replies: 34
Views: 1,711
Posted By ajshoe
Re: samsung BN44-00599A PWB

bench test, 165 VDC across big cap, ICB801S is good, have standby power, +5V, main board fuse is good, power button does nothing. no signs of life - no leds on. can this tv be forced on (bypass...
Forum: Troubleshooting TVs and Video Sources 12-26-2021, 04:39 PM
Replies: 34
Views: 1,711
Posted By ajshoe
samsung BN44-00599A PWB

Have a Samsung plasma PN51F4500AF with no signs of life. no +5.3V when plug in and Main board disconnected. does anybody have schematic for this PWB ? Q4000, Q4002, Q4003, Q4004, and fuses are ok
Forum: Troubleshooting TVs and Video Sources 12-24-2021, 03:07 PM
Replies: 28
Views: 1,326
Posted By ajshoe
Forum: Troubleshooting TVs and Video Sources 12-24-2021, 02:56 PM
Replies: 28
Views: 1,326
Posted By ajshoe
Re: lg-55UH6090-UF DEAD NO STANBY LGHT

take PWB off tv and look at it. normally a burnt smell is from PWB. check leds with led checker and look at voltages from led strips
Showing results 1 to 25 of 375

 
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