Hello friends, i have panasonic th-l32c22m dead, no red light nothing i need help, schematic if possible please
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Re: Panasonic viera th-l32c22m
here is the picture of the panasonic tvAttached Files -
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Re: Panasonic viera th-l32c22m
This is a LED Tv?Comment
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Re: Panasonic viera th-l32c22m
Can you post better pictures of the power supply.
Have you checked the On/Off switch is working OK and what voltage if any do you have across the two legs of the large capacitor.
What voltage rating is given on that capacitor.Last edited by dick_barton; 06-28-2018, 03:40 AM.Willing to help but I'm no expert.Comment
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Re: Panasonic viera th-l32c22m
yes the power swich is ok, i get over 300v from the big cap,Comment
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Re: Panasonic viera th-l32c22m
Andrew, the tv is LCD not LED , it looks like crt by shapeComment
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Re: Panasonic viera th-l32c22m
What is the P/N of that SMPS IC mounted on the heatsink in the hot side?
Since no PFC so he is probably getting around 330VDC.
There is small lytic startup/running cap in the hot that shoud be checked or just replaced it.
The rectifier diodes on the cold side all tested good?Last edited by budm; 06-29-2018, 09:08 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Panasonic viera th-l32c22m
You mean CCFL backlight? There's no such thing as an "LED TV" unless it's an OLED. LCDs are all backlit and later LCDs have an LED backlight array in place of CCFLs, because of people freaking out about mercury, LOL.
The red-power-light Viera LCD TV, does sound like something pre-2012, if not pre-2011 or pre-2010. You can tell it's that period, if you see a mercury warning on the back. I have an October, 2010-built Viera TC-L42U22 that was given to me, the only problem, seems to be some image retention.
It looks like you haven't showed us the boards for the backlight. If it's CCFL-based, there will be inverter transformers and often little blue things, which I believe are KV caps for the CCFLs.
The LED-backlight versions, often look like they hardly have anything, LOL.Last edited by RJARRRPCGP; 06-30-2018, 03:30 AM.ASRock B550 PG Velocita
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Alienware AW3423DWF OLED
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Hello, got a ST50 plasma TV for repair. No signs of life, not even blink codes. Opened it up to check the power supply, type MPF6914. Apparent issues from visual detection and measuring for shorts:
Diode type G972s6 - D101 with a short
Mosfet 06N90E - Q301 shorted
Fuse T5AH 250V - F103 blown
Diode D301 shorted
Relay DG1U-17VDC II - RL001 blown
I have not found a circuit diagram. Maybe someone here already dealt with a similar issue? Thanks for tips where else to check 😀... -
please help friends, I have 3 T490 units with the same case, the USB type C is completely dead, showing 20v 0 amp, loss of voltage VINT20_IN resistance to ground is fine, thank you
I think the problem is that I lost the voltage at PQ0008 pon 1 -PWRSHUTDOWN which should have been high which was picked up by R9512 VCC3SW, thank you very much for your help
PF0002 20v
PQ0005
pin 5 20v
pin 1.2.3 19.8v
pin 4 19.8
resistance
source & drain 2,4 m
source & gate 100k
PQ0006
pin 1.2.3 19.8v
pin 4 19.8v... -
Please help friends, thinkpad t480 nm-b501 is dead, help me fix it, thank you
usb meter 20v 0.00 amp, after I took the VSYS measurement the drop was only `9.2v which should have been 10.2v I measured from a normal matherboard machine, the VSYS path resistance to ground diode mode is 1900 thank you
LINK to Schematic -> https://www.badcaps.net/forum/troubl...b501-schematic -
Hi Badcaps,
I've had a friend discard a TH-65DX700Z Pansonic Viera Television and I've decided to have a go at repairing it. If possible could I please get some advice in terms of diagnosing the problem so I can purchase the appropriate parts for repair whether it be components, a repair kit or a replacement board. I am happy to post pictures if required.
TV Details:
Model # - TH-65DX700Z
Symptoms:
The television turns on and displays a picture then makes a clicking sound and turns off.
I haven't opened it up yet but... -
Please help sir, I included a schematic of the T490 nm-b901 completely dead, after I checked, I lost the voltage -PWRSHUTDOWN 0v which should have been 3.3v, which was produced by the BD4179MWV chip, thank you
F9502 20v
UTE1B
pin 44 TE_BAT_VOLT 12v
oin 43 3SW_OFF# 19.8v
pin 45 VREGIN20 19.8v
pin 47 VCC3SW 3.3v
pin 55 SHUTDOWNIN# 3.3v
pin 54 TH_DTCT 3.3v
-PWRSHUTDOWN missing 0v resistance 380k
R9512 pin 2 3.3v pin 1 0v resistance 380k
https://www.badcaps.net/forum/troubl...es-and-electro...
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